Cement Ball Mill has More Advantages

Traditional cement mill also named as cement ball mill. Ball mill is an efficient tool for grinding many materials into fine powder. Cement ball mill is mechanically rotated on their axis, but small ones normally consist of a cylindrical capped container that sits on two drive shafts. (And belts are used to transmit rotary motion). Cement ball mill is potentially expensive and can grind mixture particles to as small as enormously increasing surface is and reaction rates. The grinding works on principle of critical speed. The critical speed can be understood as that speed after which the steel balls (which is responsible for the grinding of particles) start rotating along the direction of the cylindrical device; thus causing no further grinding. 

Compared with the cement vertical mill, the advantage of the ball mill is obvious, in order to establish a more intuitive description of the characteristics of MPS vertical mill, following the annual output of 10 tons of cement and production of raw material preparation system, for example, compared with the two HRM vertical mill and ball mill kinds of program indicators. The advantages of the cement ball mill are: grinding efficiency; drying large capacity; into the grinding material large, medium and large vertical mill can save two broken; products, chemical stability; stars are homogeneous gradation, product uniformity is conducive to burning ; process is simple; low noise, less dust, the operating environment clean; metal loss, high utilization; use of the economy.

• stone grinder machine
• ore flotation equipment

Cement ball mill is normally operated at around 75% of critical speed, so a mill with diameter 5 meters will turn at around 14 rpm. The mill is usually divided into at least two chambers, allowing the use of different sizes of grinding media. Large balls are used at the inlet, to crush clinker nodules (which can be over 25 mm in diameter). Ball diameter here is in the range 60-80 mm. In a two-chamber mill, the media in the second chamber is typically in the range 15-40 mm, although media down to 5 mm is sometimes encountered.As a general rule, the size of media has to match the size of material being ground: large media can’t produce the ultra-fine particles required in the finished cement, but small media can’t break large clinker particles. Mills with as many as four chambers, allowing a tight segregation of media sizes, were once used, but this is now becoming rips. Alternatives to multi-chamber mills are: Pairs of mills, run in tandem, charged with different-sized media. 

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