Incorporated with modern features, we manufacture and export a quality tested range of Ball Mills. Using high-end quality mils steel and other metals these mills are manufactured as per international quality standards. Known for its high efficiency and outstanding performance, our mills are suitable for grinding hard minerals to power fines. These Ball Mills are also used to grind clinker for cement manufacturing, minerals, silicates and calcium bauxites.
- Horizontal cylindrical shaped
- Precise construction
- Supreme quality
Ball mills are primarily used for grinding materials in mineral, refractory, cement and chemical industries. Also, these are fine for silicates and some other materials that can be ground into fines. It may have wet process or dry process.
Ball mills are used for:
- Metallic Powders
- Bronze Powders / Minerals
- Carbon & Coal
- Gypsum Wallboard Additives
- Limestone Milling
- Quarts Milling
- Clinker Milling
- Gold Recovery
- Mineral Grinding, Etc.
Ball mill is basically a horizontal cylinder, used to grind the material with the help of a rotating cylinder harmonious to steel grinding balls or ceramic balls. The cylinder revolves at an appropriate speed, letting the balls to grind or disperse the materials in a uniform manner. Depending upon the mill diameter, rotation is normally between 4 to 24 rotations per minute. Also the concept is like: bigger the diameter, slower the rotation. The mill centrifuge point is called as Critical Speed, and ball mills mostly function at 65% to 75% of the critical speed.
In general the ball mills are utilized to grind material 1/4 inch and better, 20 to 75 microns down to the particle size. Also, to have excellent efficiency with the ball mills, they must be functioned in closed circuit system. Some of the classifiers for assorting the discharge from ball mills are screens, cyclones and air-classifiers.
The ball mills are generally separated into two or three chambers along its length. And the chambers are separated by diaphragms. All chamber provides grinding to a specific size, subsequent chamber forms particle size finer in diameter.
Ball Mill Design Features:
- Mild steel plates horizontal cylinder
- Rotated using a side drive system
- Alloy steel casting girth gear
- Gear reducer and motor joined together
- Cylinder ends are covered with mill ends
- Alloy steel casting mill headers
- External lubrication system
- Accessories like low pressure and high pressure pumps sets
Hardened Grinding Media which is steel forged is perfect for milling and dispersion process. The steel balls or ball mill media is suitable for speedy and contamination free milling, grinding of solids, etc. Alloy steel media is highly suitable for crushing and mixing hard materials due to its optimum hardness and high relative density. It is also fine for high pressure and impact grinding / crushing acts. Grinding applications are performed with the use of stainless steel balls and other shapes where no iron impurity is permissible, especially in food productions.
Grinding Media Benefits:
- Fine particle size reduction
- Liquids dispersion
- Homogeneous blending of raw materials
Generally, Mill liners are made from high chromium steel or manganese steel, and are selected on the basis of hardness and type of the material to be ground. Also, the design and thickness of the liners effect the grinding efficiency in Ball Mills, etc.
Closed Circuit Mill
Circulating load and classification efficiency play a major role on the efficiency of closed circuit ball mill. These two factors are basically interconnected and hard to specify in the practice. In reducing the energy consumption in milling, the role of classification seems to be neglected.
Ball mill works efficiently by making a coarse product, and precise fractions of this then being set-apart. Proportion of the mill-exit materials returned to the inlet. Also, it is essential for system efficiency that minimal amount of finished-product materials is returned to the inlet. Latest separators are effective in making a precise size and provide reduction of energy consumption and safety as well.