2014年6月20日星期五

Wood powder machine dust collector function:


Kefan wood powder making machine dust collector have many kinds model, generally we equipped round anto-pressure dust collector, pulse bag dust collector, bag dust collector. The bag dust collector equipped on the wood powder machine main function: filtration and dust cleaning two side. Dust collecting can clean all the materials like saw dust in the wood flour machine.
According to bag dust collector existing technology standard, making sure filtration effect achieve national standard isn't a difficult thing. But control wood powder machine bag dust collector equipment resistance at limited range is much more difficult. Make a general survey of bag dust collecting system appear working with bad effect problem, it has many relative about dust collecting with bad effect, so, clean dust is the determined factor relative to whether bag dust collecting system success or failure.
As wood powder making machine output products is powder condition, these powder is too fine, big adhesion and is difficult to clean. So, we suggestion that: after wood powder machine stop working, you can put bag dust collector to blow-off nozzle blowing, it sounds difficult but easy in fact. Or you can put the dust collecting device to water to soak, these powder will normal deposition and can be completely discharging.

2014年6月19日星期四

Wood chipper application,feature and working tips:


The wood chipping machine main composed by swarf device, grinding device and blower. Wood material through swarf device, output products with small size granule, no need dry up and can feeding to grinding device to carry out futher grinding. Grinded wood dust products conveying to aggregate site by blower. The best wood chipper price whole equipment only need a motor to drive, simple structure, compact layout, best price, stable working, low energy consumption, high production capacity, good wood dust products, low investment. Can process bamboo, twitch-grass, cornstalk, sorghum stalk and other fiber stalk material. The machine can also process chipboard, saw dust board high density board raw material.
Wood chipping machine is according to our national industrial production requirement, through many years research developed wood material grinding series special equipment. As compact design and structure, safety, durable, high production efficiency, after popularize and using, with good effect, low noise, etc.
Wood chipper working principle:
Wood chipper for sale adopt blade cutting and high speed gas impact, collision dual crushing function in one and also can finish micro-material separating and processing. During blade cutting and crushing process, rotor produce high speed gas, rotation along with blade cutting direction, material increase working speed in gas and repeat impact material and suffering dual crushing, speed up material grinding rate.

2014年6月18日星期三

High pressure suspension mill structure and working principle:


High pressure suspension mill working principle:
Inner high pressure suspension grinding mill, grinding roller hanger fixed 1000-1500kgs high pressure spring pressure. After start working, grinding roller rotation embrace around main shaft and under high pressure spring and centrifugal force function, roller cling grinding ring, under the same power condition, rolling pressure compared with raymond mill higher 1.2times. So, it's working capacity is improved greatly. After grinded material flow into grinding chamber, feed between grinding roller and grinding ring to press by blade. After grinded, powder along with blower recirculating air flow into analyzer. Qualified fine powder along with airflow to cyclone powder collector and get final products, big size granule re-falling to grinding chamber to grind. Recirculating air return blower repeat above process, remaining wind will flow to bag dust collector to purification. After high pressure suspension grinding mill grinding roller and grinding ring achieve a certain abrassion, adjust high pressure spring length, keep grinding roller and grinding ring constant pressure to make sure stable production capacity and fineness.
High pressure suspension mill structure introduction:
High pressure suspension grinding mill composed by main host, fineness analyzer, blower, final products cyclone powder collector, bag dust collector and airflow pipeline connection, etc. According to clients needs, it can equip crusher, elevator, silo, electric-vibration feeder and power distribution cabinet, etc. In the main host, grinding roller subassembly through cross arm shaft suspension on the grinding hanger, grinding roller hanger and main shaft blade frame keep fix connection, pressure spring outward grinding roller bearing chamber cantilever, put cross arm shaft as supporting point compel grinding roller tightenly press on grinding ring surface, when motor through driving device drive main shaft rotation, blade and grinding roller synchronous revolution, at the same time, grinding roller in grinding ring revolve on its axis. High pressure roller mill motor through driving device drive analyzer impeller rotation, the more the impeller rotation speed, the finer the separated powder.

2014年6月17日星期二

How to improve raymond mill powder discharging capacity:


Raymond grinding mill is nowadays the most common industrial one of powder making equipment. The machine discharging capacity directly effect the whole project efficiency, you can find raymond mill production efficiency effects, for improve powder discharging capacity and each enterprise is very important, thus, henan kefan engineer summarizes the following tips to discuss;
Effect raymond mill discharging capacity factors:
Material too hard; harder material using raymond roller mill to grind is more difficult, and is more serious to abrassion the equipment, the machine working with slow speed, of course, with small capacity.
Material moisture: when material with big moisture, material is easy adhere to the raymond mill and easy to be blocked during discharging process, lead to working capacity reduced.
Raymond grinding mill output products fineness: high fineness requirement, the required raymond mill output material finer, the smaller working capacity.
Material compose: before grinding, more finer powder will have bigger effect on raymond mill, as these fine powder will easy adhere to conveying. For raw material with too much fine powder, you should screening once time before feeding to the machine.
Material viscosity: material with bigger viscosity will easy adhere to the machine.
Raymond mill spare parts(hammerhead, jaw board) with good wearable properties, the machine working with bigger capacity, if the spare parts is easy abrassion will effect working capacity.
Solve methods:
1. Raymond roller mill forward add fine crusher;
2. Improve powder grinding system, improve powder grinding effect;
3. Add high efficiency powder separator;
4. Check and adjust powder locker sealings, replace new blade;
5. After clean the airflow pipeline material, re-discharging again.

2014年5月17日星期六

Cement cooler introduction and working principle:

Cement cooler introduction:
Cement clinker cooler is an important part of the kiln system and has a decisive influence on the factory production performance. Good cement clinker cooler has three key indicators characterize: maximum heat recuperation, minimum cooling air flow capacity and unlimited equipments working efficiency.
From cement cooler development history, there are several cycle changes: grate coolers were first introduced by Fuller Company (USA) at around 1930. As its advanced design, the grate cooler became the main using type in the 1950's. As planetary cooler is easy to operate, in the late 1960's, the planetary cooler gained popularity which reached its peak in the 1970's.
Precalcining technical single machine has to increas production capacity, so, grate cooler get the preferred selection again. In the mid 1980's, grate cooler renew design can not only greatly improve the technology, but also has a new position among suppliers side and the new problems has already granully to slove.
Since cement equipment have life cycles of 40 years and more, each kind cement cooler type, no matter planetary, rotary or grate cooler, will remain in operation for many more years.

Cement cooler general working principle:
Cement clinker cooler has the following tasks to fulfil: through clinker and hot air heat exchange realize process internal heat recuperation, reduce clinker temperature to convenient for clinker transport and storage, provide fastest cooling velocity to avoid unfavorable clinker phases and crystal size produce.

2014年5月13日星期二

Why raymond roller mill can used in kaolin field?

Recently years, with kaolin develop, it is widely used in many other industrials, such as paper making, coating, plastic rubber cable, ceramic, chemical, cement, refractory material and agriculture and so on. Some high new technical industrial has already using big amount of kaolin as new material, even the high temperature resistant ceramic spare parts, also made of kaolin.

Our country has rich kaolin resource, total reserve ore 14.7 one hundred million tons. Kaolin firing process needs too many equipments, but the main equipments is raymond grinding mill, especially high pressure raymond mill, process 400mesh kaolin, general raymond grinding mill can do it, but process 1200mesh kaolin, needs ultrafine raymond mill or high pressure micro-powder mill.

Among raymond mill spare parts, main important three spare parts: pipeline, reducer and main bearing. 1. Raymond roller mill pipeline function is supporting and airflow, high requires of pipeline durable material; 2. According to ideal reduction ratio to select reducer; 3. The most important one is bearings, if using defective products will effect production efficiency.

2014年5月7日星期三

Cement clinker cooler functions and species:

Cement clinker cooler has two main functions: recycle as much heat as possible from the hot clinker to heat up the air used for combustion, cool the clinker from 1400 degree to temperatures suitable for the subsequent process equipment, general working temperature is from 100 to 200 degree.  
There are mainly two different types cement clinker coolers in operation with the following features:  
Rotating coolers, rotary tube coolers with independent drive or planetary cooler attached to kiln shell, quasi counter-current flow realize heat exchange, cooling air determined by hot air, no waste air, heat exchange determined by condition of internal heat transfer equipment, limited single unit size, planetary cooler is not suitable for pre-calcination technology, practically no new installation built anymore.
Grate coolers, carry out heat exchange through horizontal clinker layer with cold air from grate board. Cooling airflow capacity exceed combustion air requirement airflow capacity can decrease clinker temperatures, but will produce wast air. Modern cooler technology with sophisticated plates and forced aeration systems make combustion air temperatures exceeding 1000 degree. Trend to wider and fewer grates, decrease cooling air and fixed inlets.
Kefan is profession cement equipment supplier, many more informations pls feel free to contact us at all times, detail informations we'll give you best discount!!!

2014年5月5日星期一

High pressure mill & high pressure suspension mill comparative:

High pressure grinding mill uses a sophisticated high-pressure system, it can extend the equipment operation life, in equal measure to increase the capacity of the grinding equipment.
High pressure grinding mill and high pressure roller mill similarities are high-pressure spring between the roller and plum, which enhances the force between roller and ring. High pressure grinding mill is with high screening rates, reduced material needed to be re-grinded, saving time and energy.
Differences: after high pressure suspension grinding mill starting, the mill roller rotates around the spindle, and scrolls clinging the mill ring under centrifugal force and high pressure spring, and its scroll pressure is 1.2 times of Raymond mill in the equal power conditions. after material entering into the cavity of high pressure suspension grinding mill, material will be grinded by mill roller and mill ring, the grinded powder will be entered into the analysis machine with blower, finally, qualified fine powder will be entered into cyclone powder collector with airflow and be finished products.
Many more technology informations of high pressure mill and high pressure suspension mill please contact us at all times, detail informations we will give you best discount!!!

2014年5月4日星期日

Which factors can effect wood powder machine production efficiency?

Wood powder machine is high efficiency wood processing equipment, during production process will effect by environment, material and other factors. Has big effect on high effect production. Then what are the factors to effect the wood powder making machine?
1. Raw material hardness. Harder raw material is diffcult for the machine to crush and also will abrasion the machine serious. Lead to wood powder machine working with low speed, low production capacity. So, we should improve technical and purchase new material for the machine using.
2. Raw mateiral humidity. When raw material with much moisture, material will conglutinate on the wood powder machine easily and easy to stoppage during discharging conveying process, lead to wood material grinding ability decrease. So, under the reasonable condition, you should decrease raw material humidity as much as possible.
3. Wood powder machine after crushed products fineness. Higher final products fineness requirements is mean that output finer products need small crushing ability. Then only through improve wood flour machine relative technology and equipment raw material can make sure output final products finess at the same time improve production capacity.
4. Material composition, before wood powder machine crushing process, more fine powder in the raw material will effect the machine crushing ability, as the fine powder will adhere and effect transmission easily. For raw material with too much fine powder, you should screen it in advance.
5. Wood powder machine crushing spare parts(hammerhead, jaw board) more wearable with bigger crushing capacity, otherwise will effect crushing ability.

How to determine raymond mill scrapped standard?

Each equipment has it's specific using cycle time, raymond roller mill as machinery industrial common equipment, after a period of outside working time, often suffering wind and rain will accelerate raymond grinding mill inner some parts abrasion. Raymond mill for sale wearing parts main content blower, motor, reducer, reducer gear, grinding equipment, plum frame, grinding roller and analysis machien and so on. But 90% of them are raymond grinding mill wearing parts when working. If it often working under this condition will lead to the machine often happen faults. The followings are main parts scrapped standards:

1. When raymond grinding mill bearing bush abrasion bigger than 1/3 thickness, you should replace bearing bush.
2. When tooth ring wheel edge twisting degree variable line amount more than 7.5mm, you should replace it.
3. When big tooth ring tooth surface abrasion more than 25% tooth thickness, pinion abrasion low than 30% tooth thickness, it can inverted face using, when abrasion degree achieve 50%, it is scrapped.
4. Two bearing seats process surface should at the same horizontal line, hollow shaft outer surface produce groove, mark, crack, it should be replaced.
Although raymond roller mill has many manufacturers, the spare parts are casted durable materials. But even the strong material has a scrapped day, only when raymond grinding mill production process, make much more maintenance working, when spare parts abrasion to can't do normal working, replace in time, thus to make sure raymond mill production efficiency!

2014年4月30日星期三

2014.4.30 Kefan May Day holiday notice:

Dear Friends:
Thanks for your attention to kefan mining machinery company. Tomorrow we'll have three days holiday for national May Day. Any questions pls leave me messages, once I saw them, I'll give you answers as soon as possible!!!

2014年4月29日星期二

What's wood powder machine whole equipments structure composition?


1. The whole equipment structure contain main host(wood powder machine main host), auxiliary equipment(airflow separator, draft fan, powder collector, dust collector), powder collector(called centrifugal separator). Powder granule which can meet pulverizer requirement along with draft fan airflow through airflow pipeline tangential feeding into powder collector, make airflow portable powder produce rotation, swing powder granule to cylinder wall then through sedimentation to discharge opening and then flow into powder collecting bag itself.
2. Wood powder making machine draft fan is centrifugal blower, main used to provide suitable airflow pressure and airflow capacity for the whole machine and play dust collecting role.
3. Wood flour machine dust collector main host is a box, box bottom set a dust discharge opening, box have to install inner a vertical frame. Vertical frame top part with full bag, dust collector receive contain dust gas from centrifugal separator. As filter bag dust collector working efficiency can achieve more than 99%. So, wood powder making machine working with non pollution condition.

2014年4月23日星期三

Cement rotary kiln


Cement rotary kiln is cement clinker dry type and wet type production line main equipment. Main used to calcinate cement clinker, can be divided into dry type cement liln and wet type cement kiln two type.
Cement rotary kiln under high temperature condition with heavy loading working with low speed, the auxiliary equipment maintain and heating processs control level related to rotary kiln safety and working efficiency. Transmission device maintain main important is the equipment lubrication, working condition, dynamic detection and gear pinion mesh fineness; supporting device instalation fineness determined whether rotary kiln can reliable working or not, during working process. Whether sealing device good or not straightly effect rotary kiln heating process and working investment. According to rotary kiln daily maintenance date, strength it make it convenient for the equipment mangement working.
Wet type cement rotary kiln working process: change raw material into material slurry with 30-40% moisture. As material slurry have fluidity, so, each raw material with good mixing property, raw material with uniform ingredient, making clinker with high quality, it's wet type production main advantage. Well dry type cement rotary kiln is change raw material to powder with humidity low than 1%. Thus, it need less water evaporation heat value. But dry type cement kiln raw material is dry powder, bad fluidity than material slurry, so raw material with bad mixing, uneven ingredient.
Cement rotary kiln advantages:
The working system adopt domestic the most advanced hydraulic gearwheel device, adopt high measurement accuracy measurement column pump, high accuracy speed adjust valve and contact type graphite block sealing device and other domestic advanced technical. Convenient to operate, reliable working. Compared with the same specification equipment, working efficiency improved 10%, production capacity improved 5-10%, heat consumption decreased 15%, kefan is an ideal cement rotary kiln for clients to chose.

2014年4月22日星期二

What technical advantages do high pressure grinding mill have?


1. High reliable property, high pressure grinding mill has advanced compact structure, the most important factor is new technology ubiquitous and using plum frame and vertical swing grinding roller device. Make high pressure mill during working process with low vibration, at the same time with low noise. As the machine have plum frame and vertical swing grinding roller device, so, when high pressure mill has stable working and stable property.
2. Adopt advanced grinding system, high pressure grinding mill has recently the most advanced grinding system, making the machine realized intelligent. In grinding system, high pressure mill configurate vertical swing grinding roller device, thus, when grinding roller and grinding ring working time keep a balance condition, form regulat uniform line contact grinding area.

Powder grinding mill equipments like high pressure grinding mill can lift grinding roller and grinding ring height, increase grinding contact area, at the same time airflow capacity and final products collect system become negative pressure and secondary high working efficiency dust collector, thus thorough collect final products. Adopt enforce turbine classifier, making final products size from organic 80-325 mesh range expand to 80-800 range.

Cement rotary kiln structure installation and testing:


Cement rotary kiln brief introduction:
Cement rotary kiln is a equipment used to process cement clinker dry and wet  production line, and also can be used in metallurgy, chemical, construction refractory material, environmental protection and other industrials. The main spare parts: working cylinder, supporting device, transmission device, movable kiln head, kiln tail sealing device, coal injection pipeline device, kiln liner, kiln tail seals, kiln head and fuel device, etc.

Cement rotary kiln installation and testing:
After purchase cement rotary kiln, we should careful installation and testing the equipment, include the following sides:
1. Familiar with drawing picture:
Before instal rotary kiln, we should first familiar with relative drawing picture, working site water, electric, road and other safety effect, make sure power energy position and temporary power energy position.
2. Lifting, transporting side:
During cement rotary kiln installation process, as it is very heavy, so, we should make a certain prepartion and transporting tools in advance, to prevent the unknown troubles.
3. Working people requirements:
When installation, as cement rotary kiln working cylinder is too big, you should avoid cross working, as when we arrange the working site, rotary kiln has a certain distance to the underground, so, we should specially pay attention to safety side. To get a certain installation effect, there should better have security officer supervision, technical guide.

2014年4月21日星期一

High pressure roller mill application and working principle:

High pressure suspension grinding mill main used to process metallurgy, construction material, chemical, mine and other industrial material powder grinding, can grind limestone, marble, calcite, feldspar, sand slag, dolomite, granite, iron ore, clay, kaolin and other mohs hardness low than 9.3, wet humidity low than 10% non-flammable, non-explosive materials.

High pressure suspension grinding mill structure: main host, analyzer, pipeline device, blower, jaw crusher, bucket elevator, electric vibrating feeder, electric control device and motor, etc. Main host inner structure: plum frame, vertical axle-bearing, balde, blade barrel, grinding roller assembly and other device. Main host working process through transmission device drive center shaft rotation, shaft top connect plum frame, frame top install grinding roller assembly and form swing pivot. Plum frame bottom install blade system, the position located grinding roller bottom port, during blade and grinding roller co-rotating process, feeding raw material between grinding roller and grinding ring, form cushion material layer, the layer suffering grinding roller rotation produced centrifugal force(extrusion force) grinding raw material and achieve powder making goal.

When using high pressure suspension grinding mill, if raw material too big, you can use PE250*400 jaw crusher, after coarse crush, output material transport to silo by elevator, then through vibrating feeder feeding to high pressure suspension mill uniform. Generally, we using D200*7m standard configurate elevator, and we can also making improve according to clients different requirements. High pressure roller mill final products size can be adjust from 30 mesh to 350 mesh according to actual condition to adjust and different fineness determined different production capacity.

2014年4月18日星期五

High pressure suspension mill grinding chamber shape and liner abrasion relationship:


For powder grinding mill machine, different powder grinding chamber determined different liner abrasion condition for the same kind powder grinding mill.

High pressure suspension grinding mill grinding chamber abrasion has the following analysis:
a. During high pressure roller mill start working process, transport to the machine parallel zone will stack too much raw material at the feed opening, later will decrease sharply. Thus, parallel area suffering strong abrasion and high pressure suspension mill working several day, parallel area will be change gradually.
b. With liner board abrasion and powder grinding chamber layout change degree, along the powder grinding chamber height grinded raw material with uniform distribution. In liner limit abrasion range all the machine exist grinding chamber layout size change condition, especially later period hasn't parallel area, the whole grinding chamber completel lost organic layout. Besides, feed opening size about decrease 1.4-1.7 times, feed opening processed the most raw material. As without parallel area make output products with bad quality, the production capacity will be decrease.

In a word, as high pressure suspension mill uneven liner abrasion, powder grinding chamber will lost organic shape, lead to liner with lower using life and decrease technical economical standards.

2014年4月16日星期三

What's raymond mill plum frame function and deform reason?


Plum frame is raymond mill main spare parts, plum frame generally adopt high hardness, good wear resistance material made, such as hard nickel-iron, high chromium cast iron, high manganese steel, etc. In addition to plum frame raw materi, manufacturer and process method are also important, for example, hard nickel-iron rollet sleeve using metal mold or centrifugal casted, hardness is 700HB, using sand mold casted hardness is 500HB. Plum frame position: grinding roller connect plum frame. Plum frame bottom is blade barrel, blade barrel fixed on plum frame, raymond grinding mill main host bottom have a big recoil bearing, so, raymond mill main shaft won't fall off, plum frame at main shaft top and be fixed.

Generally condition, as long as raymond mill normal working, there is no hard material fall into the grinding area and stumble main shaft, plum frame won't be deform. Raymond mill main host through transmission device drive center shaft rotation, center shaft top connect plum frame, roller shaft installed on the plum frame, plum frame drive by main host transmission device and fast rotation, grinding ring fixed, electric vibrating feeder make raw material fixed quantity, uniform and continous feeding to grinding chamber, grinded by grinding roller and grinding ring force. As airflow from grinding ring bottom tangentially inhalation, through grinding roller and grinding ring grinding area, inclusion powder dust feeding raymond mill top wind classifier. Plum frame top installed three grinding roller, not only revolving around the central axis, but also grinding roller itself due to friction rotation. Thus, through friction and raw mateiral sedimentary lead to plum frame unstable working.
Henan kefan produce raymond mill equipment: raymond grinding mill, ultrafine micro-powder mill, ball mill, high pressure suspension grinding mill, etc. Contact us for discount!

2014年4月15日星期二

Cement rotary kiln

Rotary kiln blongs to construction material equipment, according to different raw materials, it can be divided into cement rotary kiln, metallurgy chemical rotary kiln and lime rotary kiln.

Cement rotary kiln is cement clinker dry and wet type production line main equipment. Rotary kiln is widely used in metallurgy, chemical, construction refractory material, environmental protection and other industrials. The plant composed by cylinder, supporting device, gear wheel supporting device, transmission device, moviable kiln head, kiln tail sealing device, coal injection pipeline device and other spare parts. Rotary kiln working cylinder and horizontal shown a certain inclined degree, the whole cylinder supporting by supporting wheel device, and have control cylinder moving supporting device, transmission system except setting main drive, but also set main power energy, when power cut kiln cylinder can still rotation, prevent cylinder bending and deforming auxiliary transmission device, kiln head, kiln tail sealing device adopt advanced technical, make sure reliable seals.
Our factory produced rotary kiln has features of durable structure, stable working, output high quality products and can provide user advanced high efficiency vertical preheater and five star cyclone preheater.
Rotary kiln besides calcination cement clinker, but also used to calcinate clay, limestone and so on. During refractory material production process, adopt rotary calcine raw material, make it with stable size, increase strength, re-process and forming. During ore beneficiation process, using rotary kiln magnetic and roasting poor iron, making raw ore weakness magnetic change into strong magnetic, convenient for magnetic-separation. In chemical industrial, using rotary kiln produce soda, calcine phosphate fertilizer, etc, this method has features of low energy consumption, power energy-saving, no need sulfuric acid and can utilize low grade phosphate ore and so on.
Besides, in environmental protection side, utilize cement kiln incineration dangerous waste, rubbish, this not only decrease waste material, harmless, bust also make waste material utilization to become fuel, save coal powder, make sure waste material to be resource.

2014年4月14日星期一

High pressure suspension mill detail informations:


The high pressure suspension mill is used to grind materials of construction, mining, metallurgy and chemical industry.
High pressure suspension mill raw materials and products properties:
The materials should be non-flammable and non-explosive. Examples of the materials are: quartz, feldspar, barite, fluorite, dolomite, garnet, carborundum, bauxite, zircon, marble, calcite, iron ore, rock phosphate, coal, ceram, slag and so on (400 kinds of materials).
The materials should have the hardness less than 9.3 in Moh’s scale and humidity less than 6 percent. The granularity of the end products can be changed from 30 to 425 meshes.

High pressure suspension mill features:
1. Unique design, widely applications. Compared to other mills with the same power, the production capacity of is increased 20-30%;
2. Eco-friendly. Dust cleaning can fully meet national standards.
3. Good airtightness. The grinding rollers apply the overlapping and multi-level air protection to make sure the efficiency and long working life;
4. Low operation cost. The wearing parts apply high quality materials to lengthen the grinding rollers and rings' working life. And also decrease the customers' investment cost;
5. Increase the wearing parts utilization. To make sure stable productions capacity and output fineness, customers can adjust high-pressure spring length and keep the invariable pressure between grinding rollers and rings.

High pressure suspension mill working principle:
High pressure suspension mill and raymond mill have the same working principle. When the machine works, the grinding roller, under the action of high pressure spring and centrifugal force, rolls close up to grinding ring, its rolling pressure is 1.2 times higher than that of raymond mill. When the grinding roller and grinding ring reach a certain degree of abrasion by adjusting the length of high-pressure springs to keep the constant grinding pressure between grinding roller and grinding ring, stable output capacity and fineness are guaranteed.

2014年4月13日星期日

How does raymond grinding mill grinding tooth incline degree form?


Grinding roller is powder grinding mill important part, grinding roller grinding tooth incline degree has critical role on products quality, outlet powder rate and grinding roller using life. General raymond grinding mill grinding tooth incline degree is the two grinding roller opposite rotation and press raw material, if grinding tooth has no incline degree, high speed and low speed roller grinding tooth will parallel to each other, when grinding, between two roller will appear unstable, wrong joggle phenomenon, like this, it's difficult to cut raw material to filamentous, at the same time, grinding roller will produce vibration and influence grinding effect. Raymond grinding mill grinding tooth should not only have incline degree, but also should be right installed.

Raymond grinding mill two roller grinding tooth at grinding area both side, relative to material form many crosspoint, under grinding roller rolling distance smaller than raw material formed coverage length condition, raw mateiral at crosspoint suffering bigger shear force. When raymond grinding mill grinding area with many crosspoint, grinding area material suffering shear force average chance will increase, equipment crushing ability will increase.

Under other same condition, big incline degree produce many more crosspoint in grinding area, material in raymond grinding mill grinding area will suffering stronger crushing degree, fragile cortex, bad products quality and low energy consumption. But to meet low energy consumption requirements, it should select bigger incline degree.
Raymond grinding mill grinding tooth joggle details please look at the attached picture.

2014年4月11日星期五

Wood powder machine full technology:


Kefan wood powder machine has the following advantages:
1. You can add a new type material, has function of soundproofing, radiating. So, during the machine using process, low noise, no vibration, good appearance, stable and durable, high production capacity, compare with traditional wood powder making machine, production efficiency improved 50%, it's recently other powder grinding machine can't replace high technical ideal equipment;
2. The machine feed opening adopt self-priming feeding, replaced traditional hammer crusher straightly feeding, ignore input metal block lead to serious damage disadvantages and make sure safety production.
3. The wood flour machine with fine processing technology, adopt doule layer airframe mezzanine.
4. Inject running water to cool wood powder machine.
The machine has features of widely outlet products fineness range, strong complex property.

Wood powder making machine structure principle:
1. Adopt high speed impact, sharp cutting, gap grinding and flow from the mill principle, making material achieve fine crush goal.
2. Wood powder making machine composed by rotor, top frame and bottom frame three part. Grinding chamber adopt multistage crushing process and fine crushing principle device, it's features: big working impact force, high production efficiency, strength fine crush ability.
3. The machine consist of main host, blower, analyzer, powder collector, dust collector and other spare parts. Each part has features of compact structure, reasonable layout, easy operation, low noise, etc.

Wood powder making machine installation introduction:
1. The machine should lay on the concrete base that was pre-made, after calibrated the machine horizontal line, then pour foot bolts reserved hole by concrete, after concrete solidification then tighten foot bolts again.
2. After wood powder making machine installed, it should have electric protection device, after electrician wiring then testing, all the electricity controlled by power distribution.

2014年4月10日星期四

High Pressure Suspension Grinding Mill Reducer Introduction:


Reducer is powder grinding mill machine power device, classified according to different type, when new type high pressure suspension grinding mill, configurate to small type belt conveying device, configurate big type grinding mill machine reducer.

I. High pressure suspension mill reducer brief introduction:
Reducer is a kind power transmission device, using gear speed converters, making electric BW type foot board horizontal installed double shaft cycloid pin wheel reducer to get revolution number, and achieve big torque structure. At present, using for transmission power device, reducer is widely. Amost using in all different kinds machinery transmission system.

II. High pressure suspension grinding mill reducer main function:
1. Reduce speed at the same time decrease loading inertia, reduce speed rate squared is inertia amount. As we all know, generally, all the motor have a inertia values.
2. Reduce speed at the same time improve output torque, torque output proportion according motor output multiply reduction ratio, but you should note that it can't exceed reducer rated torque.

III. High pressure suspension grinding mill reducer working principle:
Reducer generally used in low speed big torque transmission equipment, let motor or other high working speed power through reducer input shaft fewer teeth  gear mesh output shaft big gear to reach reduce working speed goal, general reducer also have many pair same principle gear to get ideal reduce speed effect, big gear and pinion teeth number ratio is transmission ration.

2014年4月9日星期三

High Pressure Suspension Grinding Mill Application:


High pressure suspension grinding mill description:
High pressure suspension mill is a new research and development mill by kefan based on many years powder grinding mill experience, according to the practical situation of the customers, and powder grinding mill industrial needs, which opens a new period of international powder grinding mill industry with high efficiency and low power consumption.

As a widely used powder grinding mill machine: high pressure suspension grinding mill. I think all of us know the basic knowledge of it, today, I'd like to introduce about high pressure suspension grinder application knowledge, hope I can do help to you to know much more about it.

1. High pressure suspension grinding mill applicate in material grinding industrial. No matter media crush raw material or fine grind material, all the process can be finished by high pressure suspension grinder.
2. High pressure suspension mill used in ore beneficiation industrial. During ore beneficiation industrial process, you should grind raw ore to fine powder; While it can not only used for pre-grinding, but also can mix using with ball to powder grind raw ore.
3. The machine suitable used in oxidation ball block industrial. as high pressure suspension grinder significant technology advantages, so, it can completely replace powder grinding mill machine used in oxidation ball block industrial.
4. High pressure suspension grinding mill used in construction material industrial. According to the date, it's used to deal with cement clinker, bauxite and limestone and other materials powder grinding process.

2014年4月8日星期二

Raymond grinding mill feeding system and grinding system composition:


Raymond grinding mill main contain feeding system and grinding system. Raymond grinding mill automatic feeding system structure constitute: feeding roller(split rolls and quantitative rolls), material bridge and mobile feeding door and other structure. It's main function is making raw material uniform distribution along with quantitative rolls contact length and material thickness is uniform distribution on the whole length. Feeding materials through split roller appear uniform thin curtain condition falling and feeding to the grinding area. Raymond grinding mill feeding driving motor, select three-phase exchange permanent magnet low speed synchronous motors. Power is 400w, max. torque is 40Nm, synchronous speed is 60r/m(50Hz).

Feeding rolls speed testing: raymond grinding mill automatic control system, feeding rolls speed range is from 30r/min to 300 r/min, lower speed testing method can adopt measuring cycle method. Feeding rolls speed adjust good or not effect whether feeding rollers can uniform feeding or not, at the same time, determined whether raw material flow layer along the whole grinding rolls length thickness. Only when feeding roll adjust to the certain speed, we can make sure raymond grinding mill stable working, otherwise it will effect the production capacity, products quality and lead to the machine unnecessary damage. Feeding effect factors: 1. feeding roller tooth type and feeding rolls working speed; 2. feeding capacity automatic adjust function.

Raymond grinding mill process flyash make clients get high profit:


Flyash is coal-fired power plants discharged main solid waste material, it's coal-fired smoke collected fine dust, but these fine dust can completely through raymond grinding mill process and utilization again, make resource recycle using. Flyash can be used as cement, concrete and aac block raw material. Add flyash to concrete can improve concrete quality. So, flyash is these basic facility good material. After flyash collected, through raymond grinding mill grinded to fine powder, then it can be utilizated. Simple working process and can make high profit for clients.

With urbanization each basic construction fast speed development, cement, concrete and these raw material requirements large amount. This indicates that flyash has also very big utilization valuable, when our company many clients purchase raymond grinding mill, main used for deal with flyash, according our clients, outlet products with high profit, many of our clients are old customers, if without satisfactory harvest, how can they continue increase equipment, expand production?

Raymond grinding mill is one of kefan machinery flagship product, kefan has already researched raymond grinding mill for many years, has rich experience on mining equipment each aspect, clients can assured to purchase. Our company has many other heavy type equipments: lime rotary kiln, coal slime dryer, rotary drum dryer, high pressure suspension grinding mill, etc. Sincerely welcome clients to our factory inspect the machine you need.

Vertical grinding mill wearing parts:


Blade, grinding roller, grinding ring are raymond grinding mill wearing parts.
1. Vertical grinding mill blade main used to material continue shovel into between grinding roller and grinding ring. When continue shovel up material, blade bear different quality, hardness material carry out long time contact friction, very easy suffering wear and tear, serious damaged blade can't shovel up material, lead to vertical grinding mill working efficiency suffering a certain degree effect. Thus, raymond grinding mill blade structure majority made by good wear resistance steel, make sure blade achieve the longest using life.

2. Vertical grinding mill grinding roller and grinding ring is the whole equipment wearing parts, after material transported between grinding roller and grinding ring, it will be pressed by grinding roller and grinding ring and rotarion force to achieve crushing function. So, grinding roller and grinding ring not only suffering material friction, but also suffering each other friction force. When grinding roller and grinding ring appear serious abrasion or uneven abrasion, it will effect material fine powder production, appear final products with uneven fineness phenomenon. To make sure final products fineness, vertical grinding mill grinding roller and grinding ring adopt high pressure high toughness wearable steel material, made the machine with much more widely application and for many kinds raw materials have better grinding function.

2014年4月7日星期一

Raw material effect raymond grinding mill grinding roller tooth number:


Raymond grinding mill gear tooth number has relative to grinding materials size, raw materials feeding capacity and requirements to achieve grinding degree. For example: if raw material with big size, feeding capacity or require outlet products with big size, the machine should configurate less tooth number; otherwise it should configurate more tooth number. Under the same other condition, the fewer teeth grinding rolls, the greater the distance between the two grinding teeth, tooth groove deeper, only suitable grinding big raw material size. If using raymond grinding mill grinding fineness raw material will made raw material insert tooth groove and can't be grinded. The more the grinding roller tooth, the smaller the distance of the grinding tooth, more shallow the tooth groove and only suitable to grind small size raw materials. If using raymond grinding mill grind big size raw material, when feeding capacity is small, raw material size will be grinded too small, when feeding capacity is big, raw material media part won't be completely grinded. Grinding tooth will easy abrasion, low production and high energy consumption.

Raymond grinding mill production proved: compared with more gear tooth, fewer gear tooth will save much more energy, lower grinding temperature, longer grinding roller using life, can adapt high feeding capacity.

2014年4月3日星期四

Raymond grinding mill structure and working advantages:


Raymond grinding mill is widely used in mine development powder grinding equipment, main composed by main host, analyzer, blower, final products cylone separator, micro-powder cyclone separator and pipeline and so on. Raymond mill main host contain main frame, air inlet volute shell, blade, grinding roller, grinding ring and cover shell.

Raymond grinding mill adopt domestic and foreign same kinds products advanced structure, at big scale raymond mill base update and improve designed. Powder making company autonomous research and development big, media, small scale new type energy-saving vertical grinding mill using modern design method, adopt advanced grinding theory to guide. Grinding roller designed at plum frame center line both side, making grinding roller device under natural balance condition, main host with stable working, low vibration.

Raymond grinding mill main host working chamber grinding roller with small volume, leave many more volume for grinding chamber, blower high pressure air flow capacity flow into more working area,  lead to outlet fine powder have more chance fastly out of main host, flow into cyclone collector, avoid ultrafine powder repeat grinding for many times. That's new type energy-saving raymond mill production capacity high than general three roller vertical grinding mill reason. New type energy-saving raymond grinder only have two rollers, with low working load, compared with the same specification general three roller raymond mill saving 25% energy, production capacity improved 20%.

During further developing, vertical grinding mill with have futher development, to improve the structure and property.

2014年4月2日星期三

Cement cooler relative technology:


Cement cooler generally used for cooling powder materials and particles, has features of easy to operate, reasonable structure, high cooling efficiency, cooling water is recycle used, etc.

Cement cooler refractory material requires:
As temperature can achieve 1100 degree, so, cement clinker cooler inner wall must mosaic refractory material, the function is as high temperature resistant structure material and liner.
According to cement cooler working features and using requirements, refractory material should meet the following tips:
1. Material from 1100 degree high temperature fastly cooled to around 100 degree, refractory brick should anti-thermal shock and bear big temperature fluctuation;
2. Cement cooler should have good wearable property and bear raw material mechanical abrasion;
3. The equipment should have strong strength and resonable structure and anti-corrosion property under a certain temperature.

2014年4月1日星期二

Contact Raymond Mill Supplier For Discount!!!


Raymond grinding mill is a common to process non-metal raw materials, widely used ind cement plant and mineral industrials. It's popular with clients as the high production efficiency and stable working, but raw material hardness, humidity, contents, viscosity will influence raymond grinder working capacity.

Raymond grinding mill advantages:
According to data shows, among the domestic powder grinding machines, raymond grinding mill occupy over 70%. But why? The followings are the keys:
1. Compact structure and reasonable working, small footprint, vertical structure. Can form an independence production system;
2. Compared with other powder grinding mill plants, its final products rate achieve 99%;
3. Raymond grinder main host driving system adopt sealing gearing and pulley, smoothly driving and reliable operation.
4. Low dust pollution, eco-friendly, smoothly working.
5. Electromagnetic vibrating feeder uniform feeding raw materials, easy to adjust, energy-saving, easy to maintain, etc.

Many more details please check our website or contact us for raymond grinding mill discount!!!

Raymond grinding mill using precautions and features:


With the development of science technology and market requirements increases, raymond grinding mill disadvantages become more and more obvious: serious powder dust pollution and huge final products loss, high energy consumption.
Raymond grinding mill together with the dust collecting equipment can obviously avoid the dust and noise pollution during raw material processing. Raymond mill has features of stable performance, high efficiency and low investment, etc.

Raymond grinding mill using precautions:
1. During raymond grinder working process, you can't add oil arbitrary to make sure safety working, when grinding mill machine any spare parts occurs abnormal noise or loading capacity suddenly increase, you should stop working and checking faults, avoid happen serious accident, after discharging excess material inner the raymond grinder then start working, otherwise the machine overcurrent and avoid starting.
2. Before raymond grinding mill start working, you should check whether all the access door tightly sealed or not. Checking whether crusher jaw board gap can meet feeding size requirement or not, adjust analysis machine speed should approximate final products size requirement. Raymond grinder simple working process: elevator --- crusher --- analysis machine --- blower --- main host --- feeder.
3. When raymond grinding mill stop working, you should first stop feeding, main host continue working and grinding residues materil, one minutes later, stop main host motor and analysis motor, stop grinding working, then stop blower motor to blow residual powder. Raymond grinder stop working sequence: feeder --- main host --- blower --- analysis machine.

2014年3月31日星期一

Cement cooler working tips:


Cement cooler description:
Cement cooler material flow from bottom feeding to top discharging to make sure thatmaterial can be fully cooled. Water naturally flows along the shell to realize the material countercurrent flow, keeping high heat exchange rate. Using material spiral lifter to increase the cooling time.

How to choice cement cooler refractory material?
In order to reduce heat consumption, thinning refractory brick liner, decrease material and energy consumption. Cement clinker cooler refractory material should have features of low heat transmission rate, good insulation properties insulation tiles as insulation layer refractory materials:
1. Cement cooler inner refractory brick adopt two layer structure: inner layer is working area, outside layer is heat insulation layer;
2. Material and high temperature air contact working area should adopt clay hard refractory brick.

Cement cooler refractory material choice requirements:
1. High normal temperature anti-pressure strength, can resist longlife working abrasion;
2. Good structure strength and improve anti-corrosion ability from a certain degree;
3. Low heavy firing line change rate, can avoid refractory brick under high temperature condition working process damage because of valume inflate and shrink;
4. Good anti-vibration, can meet cement clinker inner thermal shock, working temperature fast change working features;
5. High refractoriness, good fire resistance;
6. Clay brick with high production capacity, widely usage, good working property and low cost, can completely meet cement cooler working requirements.

Vertical grinding mill working tips:


Vertical grinding mill working principle:
a. Jaw crusher crush raw material to vertical grinding mill required size.
b. The crushed materials are conveyed into a silo, which the material is transported through the electro-magnetic vibrating feeder evenly and continuously into the grinding chamber. The rollers oscillate outward to press the ring because of the centrifugal force and the shovel scoops up the materials, send to the middle between ring and roller to accomplish the grind.
c. After that, the outlet material are carried by the air from the blower into the powder collector(analysis machine) for screening. The fine powers are blow into the cyclone powder collector and are discharge through the discharge opening valve, and the corase materialsafter the screening will be returned back to the vertical grinding mill grinding chamber for regrinding. The airflow system is closely sealed up and circulated under negative and positive pressure condition.

Vertical grinding mill installation tips:
1. Before vertical grinding mill installation, you should take care of the grinding plant and smear rust-proof oil and grease on the vertical grinder surface in order to avoid sun and rain and prevent rust and water of the body. So, you'd better to establish maintenance regime.
2. Choose proper height and installation location according to the foundation drawing. The grinding mill base should adopt mixing concrete. Before being casted the base shall be buried steel. After casted, the base should have 15 days of warranty period.
3. Vertical grinding mill should be equipped with 2 to 3 tons of lifting tools used for installation and maintenance.
4. When the using time is more than 6 months, you should clean and check the transmission device, grinding device, analyzer, and oil pool and so on. Afterchecked, you should add enough grease.

2014年3月29日星期六

Wood powder machine features, raw materials and start working process:


Wood Powder Machine Features:
High working speed: the machine working with high speed at least 2900r/min.
Reasonable crushing principle: the machine adopts high-speed impact, sharp cutting, interval grinding and flowing grinding to get fine crushing effect.
Advanced design: low investment, low energy consumption and noise; it can also improve the production efficiency and working stable.
Adjustable fineness: the fineness can be adjusted between 20 meshes and 325meshes.
Reasonable and compact structure: the whole equipment is consisted of main host, blower, powder collector and dust collector, etc. It is safe and convenient to operate.
The wood grinder can grind material into powders or granule, fibrous material of different fine degrees(from10-525meshes)the rate reaching100% without slag.

Wood powder machine raw materials:
The machine mainly deal with solid matter in 3 level hardness, such as soft mineral, brittle material, tough materials, fiber material and some material easy to condense into block.
Suitable for: miscellaneous wood powder, bamboo powder, cork powder, polyvinyl chloride (PVC plastic)the tooth material, dyestuff, leather, mica, refined cotton, seawater product, spices, feed, rice shell, peanut shells, nut shell, cavings, pesticides, charcoal, hard foam, fine tires line etc.

Wood powder machine start working process:
1. Before start working, you should strictly check whether wood powder making machine each part installation can meet requirements or not, metal material is forbidden fall into the machine, push belt to testing the machine by hand, check whether there are vibration or not.
2. Start sequence: first start blower, then main host; stop working you should first stop main host then blower;
3. Keeping even feeding, feeding size according raw material hardness, hard material diameter should low than 3cm, forbidden metal block feeding into discharge opening.
4. During wood powder making machine working process, blower shouldn't overload, keeping normal working.
5. You should often check blade, grinding board abrasion degree, once there are serious abrasion on the blade, you should replace them in time.

2014年3月28日星期五

New type raymond grinding mill energy saving and exhaust reduction:


New type raymond grinding mill widely used in mineral, construction material, chemical, metallurgy and other industrial, under final products the same size condition, it's powder production capacity is higher than other series, wearing parts high utilization rate. Under the same raw material and the same size final products condition, wearing parts using life is longer than other mining machinery, high working efficiency and eco-friendly, embodies the concept of raymond grinding mill research and eco-friendly combine.
When new type raymond grinding mill crushing materials, grinder roll tightly rolls on the grinding ring under the action of centrifugal force, thus, when the grinder roll and grinding ring are worn to a certain thickness, it doesn't effect production capacity and fineness of finished products. Grinder roll and grinding ring of raymond mill have long replacement cycle, avoid the disadvantage of ultrafine centrifugal mill wearing prats short replacement cycle.
After improved at the basis of traditional raymond mill design concept, kefan new type raymond grinding mill has reached national environmental protection standard. It's essential to intensify the efforts on energy saving and environmental protection. Under the same materials, service life of raymond grinder is longer that other mining machinery equipment. Kefan vertical grinding mill  has features of long service life, safety and reliable working, high efficiency, clean and environmental protection and so on.

2014年3月24日星期一

How to tesing lime rotary kiln and choice blower?


Lime rotary kiln airflow supply and blower choice:
No matter mixing burning rotary kiln or gas burning rotary kiln need a certain reliable airflow supply, as any fuel burning should have the following three terms: fuel, air(oxigen) and fire, without any of the term won't be burned. Airflow capacity should calculate according to fuel combustible components oxigen require amount, without enough airflow then without completely burning. So, during blower select, you should calculate at the base of theory also you should according specific furnace and actual experience to select blower, thus, you can get the best effect.
Lime rotary kiln installation testing
1. Rotary kiln should be installed in horizontal concrete foundation, fixed by anchor bolts.
2. The rotary kiln installation should pay attention to the main body should vertical to horizontal direction.
3. After lime rotary kiln installed, checking whether each parts bolts looseness and host door is fastened or not, if not, please fasten.
4. According to the power requirements to configurate the power line and control switch.
5. After inspection, rotary kiln should carry out testing without material load, after normal testing, then it can carry out normal production.

Lime rotary kiln application, structure and auxiliary equipments:


Lime rotary kiln application:
Lime rotary kiln features: simple structure, convenient and reliable control of the production process, less wearing parts, high rates of operation, its not only used to calcine high-grade cement in cement plant, but also widely used in metallurgical, chemical, construction and other industries. Lime rotary kiln produced by our plant has strong structure, stable operation, high-quality products from the kiln and so on advantages, we can also offer advanced efficient shaft preheater, five grade cyclone preheater.
Lime rotary kiln basic structure and main auxiliary equipments:
Lime rotary kiln main composed by rotary kiln cylinder, feeding device, material spreading device, burning device, discharging device, electrical instrumentation control device, dust collecting device and other auxiliary equipments. Different lime kiln with different structure and calcination type, the same working process but big equipment valuable difference. Generally using spare parts: feeding system, material spreading device, air supply device, burning and dust discharging device and so on.

2014年3月20日星期四

Dedicated Cement Equipment---Cement Preheater


Rotary kiln tail cement preheater using hot smoke preheating preheater inner limestone to around 800 degree then preheated limestone pushed into rotary kiln by hydraulic pusher to calcine.
Cement preheater is a part of finish preheating raw material and replace rotary kiln function, thus, reduce cement kiln length, at the same time, it can change accumulate inner cement rotary kiln preheater materials suspension condition, making raw material completely mixed with outlet kiln exhaust hot air contact area increased, so, high efficiency hot air transmission speed and hot air exchange, lead to cement rotary kiln system production efficiency improved and achieve the goal of decrease low heat value consumption clinker calcination.
In the whole cement factory, preheater can be classified into several preheating chamber, according to different output temperature, each preheating chamber match a set automatic control system hydraulic pushing device, the system can improve relative data PLC control platform, to realize central control chamber centralized control.
Henan kefan machinery is a professional mining machinery manufacturer, has been engaged in rotary kiln exceed 25 years, has rich experience and advanced technology at preheater production, energy saving rotary kiln and preheating effective combine can save energy notable, decrease consumption, improve clients economical profit.

2014年3月18日星期二

How many advantages of new type raymond grinding mill?


New type raymond grinding mill is kefan machinery introduce from foreign raymond mill industrial new production technical combine with kefan machinery specialist and technician many years raymond mill produce process experience, set all the company people wisdom many years develop and research new generation raymond grinding mill equipment, the vertical grinding mill continue match high pressure spiral, continuation of our company serious of high pressure grinding mill all advantages.
New type raymond grinding mill ancillary equipment can improve powder separator fineness high density separator impeller. Practice shows, under constant speed condition, improve blade density can improve final products fineness, in other words, under final product fineness no need exchange condition, high density impeller has low speed compared with low density impeller, reduced airflow resistance, working with the same power, final products capacity improved more than 50% at the bas of 95type grinding mill; New type raymond grinding mill with bigger production capacity, much more suitable for big scale powder grinding mill project needs; new type raymond grinding mill adopt distribution cabinet match the most advanced electric element, has much more stable property.

2014年3月16日星期日

Active Lime Rotary Kiln Production Line:

Kefan active lime rotary kiln production line clients' working site:

Active lime is metallurgy, chemical, papermaking and other eco-friendly raw materials. Till now, there are two methods lime making: one is vertical kiln technical, another one is rotary kiln technical. Vertical kiln method lime production with low capacity, demanding fuel, pollute environment. Rotary kiln lime system with kiln tail preheater and vertical cooler features: low energy consumption, high production capacity, suitable for different kinds of fuel, eco-friendly. Disadvantages: 1. Uneven limestone distribution in preheater, uneven heat transmission, low heat efficiency; 2. Low precalcining rate; 3. Vibration vertical cooler adopt many vibrating discharge device discharging at the same time. Effected by different vibrating frequency, it's difficult to realize unifrom discharging, at the same time, under the function of vibration force, block lime is easy to crush, decrease block rate. Besides, the more capacity required of production line, the bigger of the feeding chamber, the more technical difficult of the relative supporting structure and then effect big industrial production development. To deal with the status, kefan research new type active lime rotary kiln system technical. Has the following features: 1. Big production capacity, same quality preheating chamber, new type active lime system technical production line higher 25% production capacity; 2. Rotary kiln tail preheater heat excharge field heat force uniform distribution, high temperature waste gas and limestone heat exchange completely, high waste heat recovery rate, outlet system waste gas temperature low than 240 degree; 3. Higher 5-10% calcium carbonate decomposition rate in the rotary kiln than general production line; 4. Low investment, lower 20-30% than the same industrial.

2014年3月13日星期四

High pressure suspension mill operation and maintain principle:

High pressure suspension mill outlet products size can be adjusted from 80 mesh to 425 mesh, many products size can be 1500mesh, it's bentonite industrial and limestone powder best choice.
High pressure suspension mill distribution cabinet operation and maintain should be reasonable by special person, checking the distribution cabinet per certain time, keeping meter shown clear, operation hand working flexible, contactor and other part without dust. You should often check whether each spare part contact loose, damage or not. Mearsurement insulation resistance per half a year, you should treatment failure in time.
Maybe, crusher, high pressure suspension grinder, pulverizer same point is can be used in mine, metallurgy, construction material and other industrial. The different point is pulverizer is often used to crush chinese herbal medicine, plastic, paper, fiber and so on.
When clients purchase high pressure suspension grinding mill, you should pay attention to the outlet products size, kefan can help you select the best suitable for you using grinding machine according to your products size requirement. Many more informations, welcome your consulting.