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Brief Description of Cement Mill

timeMay 13,2012

A cement mill or finish mill in North American usage is the equipment used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement. Most cement is currently ground in ball mills.

The hardness of clinker is important for the energy cost of the grinding process. It depends both on the clinker's mineral composition and its thermal history. The easiest-ground clinker mineral is alite, so high-alite clinkers reduce grinding costs, although they are more expensive to make in the kiln. The toughest mineral is belite, because it is harder, and is somewhat plastic, so that crystals tend to flatten rather than shatter when impacted in the mill. The mode of burning of the clinker is also important. Clinker rapidly burned at the minimum temperature for combination, then rapidly cooled, contains small, defective crystals that grind easily. These crystals are usually also optimal for reactivity. On the other hand, long burning at excess temperature, and slow cooling, lead to large, well-formed crystals that are hard to grind and un-reactive. The effect of such a clinker can be to double milling costs.

Cement mill is composed of feeding part, discharging part, turning part and driving part (reducer, small driving gear, electric motor and electric control). The quill shaft adopts cast steel part and the liner is detachable. The turning gearwheel adopts casting hobbling process and the drum is equipped with wear-resistant liner, which has good wear-resistance. The machine is with stable and reliable working condition. Moreover, according to different materials and discharging methods, there are dry ball mills and wet ball mills for choice.

In the techniques of Cement production process, People usually choose lime stones and clays as the main raw materials, crushing, concocting, grinding them into cement raw meal, feeding them into cement kiln, cement clinker is usually ground using a ball mill. After being calcite maturity, adding appropriate amount of gypsum (sometimes mixing the mixed material or admixture) then being grinded, and the cements form.

Cement production in the mining area to establish the layout of cement clinker production line, in the major cities in the vicinity of cement sales market is set up near the cement grinding stations. Admixture produced most of the urban industrial waste, cement grinding stations around the city greatly digest of slag, fly ash, slag, coal and other industrial waste, is a green industry to provide the cement grinding factory Point process used in the most simple and most convenient operation, process equipment, at least, less investment, saving, environmental protection, hybrid materials can be mixed with more advantages.

Hongxing Machinery not only has skilled technicians and experienced service team, we also apply Internet technology into all aspects of production and management process which can provide timely provision of the latest products' information and technical services. We provide the best warranty and extended warranty plan for our products. Our company provides mining equipment of vastly selective, reasonable matching, reliable quality and high performance-price ratio.

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