Portland cement production process details:

Portland cement clinker ore materials composed by tricalcium silicate, dicalcium, tricalcium aluminate and almandine tetra calcium.

1. Raw material crush and pre-homogenization:
a. Raw material crush:
During cement production process, most raw material needs crush, such as limestone, clay, iron ore and coal and so on.
b. Raw material pre-homogenization function:
Homogenization raw mateirals, reduce quality fluctuation to convenient produce higher quality clinker and stable calcined system; adaptable for sticky wet material; compound different kinds raw material in stack area, create favorable conditions for stable working and improve cement equipment working efficiency; high degree automation.
2. Raw material making process:
During cement production process, produce 1ton portland cement needs at least 3tons raw materials(contain each kinds raw material, fuel, clinker, gypsum, etc), according to the data, cement production line powder grinding needs energy consumption above 60% power of all the factory. Raw material need consumption 30% energy, coal powder grinding consumption 3% energy, cement powder grinding consumption 40% energy. So, to make sure high quality products and energy saving, you should choice reliable powder grinding equipment and reasonable process.
3. Raw material homogenization:
In new type dry cement production line, rotary kiln stable raw material is reliable products prerequisites.
4. Preheat decomposition:
In cement production line, raw material preheat and decomposition is finished by preheater, make raw material completely mix with high temperature hot gas in the kiln, increase gas and raw material contact area, heat transmission fast, high efficiency heat exchange, achieve improve kiln system production efficiency, decrease clinker heat consumption goal.
5. Calcination:
After raw material finished preheat and pre-decomposition in cyclone preheater, the next process is feeding into rotary kiln to calcinate.
6. Powder grinding process:
Cement equipment powder grinding process is the last process and it's also consumption most power process, it's main function is grind cement clinker to the required size.
7. Products package:
In cement production line, outlet products after calcination and powder grinding, has two type loading methods: bag package and bulk.
8. Slag utilization in cement production line:
Raw materials can be utilizated such as red mud, Gangue, flyash, stone coal and so on.