| you are: Cement klinker
As at furnace rotation partially fused material conditions for slipanija small parts in larger granules are continuously rolled, created. Fall of temperature with 1450 to 1300°С causes crystallisation from rasplava (in a kind periklaza) which comes to an end in the zone of cooling following sintering. 123456
In a zone of cooling the temperature klinkera goes down with 1300 to 1000°С; here its structure and the structure including alit - C3S is completely formed, bleaches-C2S, C3A, C4AF, MgO (periklaz), steklovidnuju a phase and minor components. 123456
Cement klinker leaves the rotating furnace in the form of small kamnepodobnyh grains - granules (' peas ') dark grey or zelenovato-grey colour. After an exit from the furnace klinker it is intensively cooled with 1000 to 100-200°С in drum-type, rekuperatornyh and other refrigerators air which is meeting half-way klinkeru or prosasyvaemym through a layer hot klinkera. After that klinker it is maintained in a warehouse of 1-2 weeks. 123456
The Grinding. The grinding klinkera in a thin powder is made mainly in the trumpet (spherical) mills working on an open or closed cycle. The trumpet mill represents the steel drum revetted inside with steel armored plates and divided by perforated partitions on 2-4 ka-122
Measures. The largest pomolnymi units are mills in the size 3,95X11 m, productivity 100 tch and the size 4,6 X 16,4 m, productivity 135 tch. 123456
The Material in trumpet mills is crushed under the influence of the grinding bodies loaded into a drum - steel spheres (in chambers of a rough grinding) and cylinders (in high milling chambers). At mill rotation grinding bodies rise on some height and fall, splitting up and using up material grains.
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