The document summarizes the cement manufacturing process in 6 phases: 1) Raw material extraction including shale, fly ash, mill scale and bauxite. 2) Pre-heating of materials in a pre-heater tower to save energy and be more environmentally friendly. 3) Heating materials in a rotary kiln to form clinker. 4) Cooling the clinker in a clinker cooler. 5) Final grinding of the clinker into a fine powder in a rotating ball mill with steel balls. 6) Addition of gypsum to the fine powder to produce the final cement product and control setting.

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3. opus
caementicium

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8. CEMENT MANUFACTURING PROCESS
PHASE 1: RAW MATERIAL EXTRACTION

10. 
SHALE FLY ASH MILL SCALE BAUXITE

11. 

13. 
VERTICAL CEMENT GRINDING MILL
CEMENT GRINDER

15. A CEMENT PRE-HEATER TOWER
ADDTIONALY,
Pre-heating
of the material saves the
energy and make plant
environmental friendly.

17. 
A Rotary kiln

18. Clinker cooler

19. Final process of 5th phase
is the final grinding.
There is a horizontal
filled with steel balls.
Clinker reach in this
rotating drum after
cooling. Here, steel balls
tumble and crush the
clinker into a very fine
powder
Cement steel balls

20.  This fine powder is
considered as cement.
During grinding gypsum
is also added to the mix in
small percentage that
controls the setting of
cement.
Rotating ball mill