Cement ball mill for sale south africa

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 hobbing 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.

How Ball Mill Works

A Ball Mill grinds material by rotating a cylinder with steel grinding balls, causing the balls to fall back into the cylinder and onto the material to be ground. The rotation is usually between 4 to 20 revolutions per minute, depending upon the diameter of the mill. The larger the diameter, the slower the rotation. If the peripheral speed of the mill is too great, it begins to act like a centrifuge and the balls do not fall back, but stay on the perimeter of the mill.

The point where the mill becomes a centrifuge is called the “Critical Speed”, and ball mills usually operate at 65% to 75% of the critical speed.

Ball Mills are generally used to grind material 1/4 inch and finer, down to the particle size of 20 to 75 microns. To achieve a reasonable efficiency with ball mills, they must be operated in a closed system, with oversize material continuously being recirculated back into the mill to be reduced. Various classifiers, such as screens, spiral classifiers, cyclones and air classifiers are used for classifying the discharge from ball mills

Cement Roller Mill

Vertical Cement roller Mill is a brand new kind of large-scale grinding generator which is designed specially to resolve the problems of reduced capacity and higher consumption of industry grinding mills.

With decades of years research, vertical roller mill is designed as well as manufactured based on the advanced design idea. Now, vertical roller mill has applied widely in the exploration, chemistry, non-metallurgy and other countless industries.

Vertical roller mill for cement industry

Vertical roller mill can be used in the whole process of cement production. In the limestone crushing and milling plant, vertical roller mill can grind the limestone particles into fine powder; in the fossil fuel pulverizing plant, vertical roller mill can be used to grind the actual coal into good powder; in the gypsum milling plant, vertical roller mill will pulverize the gypsum in to ultrafine powder; in the cement clinker grinding process, vertical roller mill performs an important role too.

Vertical roller mill consists of feeding part, discharging component, turning part as well as driving part (reducer, small driving gear, motor unit and electric manage). The quill shaft adopts cast steel part and the liner is actually detachable. The turning gearwheel adopts casting hobbing process and the drum is equipped with wear-resistant lining, which has good wear-resistance. The actual cement mill machine is with stable and reliable working condition.

Cement vertical mill 

Cement vertical mill is the primary and new procedure equipment in thecement grinding plant. LM sequence cement vertical mill is of stronglcrushing, high crushing efficiency and good operational balance. Tosome extent, reducing the energy consumption or helping the systemoutput has solved concerns of low production of cement, runninginstability, etc.

Through replacing cement ball mill along with cement vertical mill, we can realize-the role associated with reducing energy usage. Relatively speaking, usingcement vertical mill to mill cement raw material, coal and blastfurnace slag continues to be fine for the older technology.

As long as wecontrol the actual cement particle size distribution, water demand, the typesof ingredients in the gypsum and grinding heat and so on, toachieve large-scale promotion of the cement vertical generator use is very guaranteeing.