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Main features and application ranges of grinding mill
03-09-2020, 11:31 AM,
Post: #1
Main features and application ranges of grinding mill
In order to differentiate the autogenous mill, people often call the grinding  mill that needs metal grinding media as common grinding mill, such as ball mill  and rod mill. These autogenous mills have their own features, so how to  perfectly choose a suitable grinding mill according to the requirement of the  ore beneficiation technology on the granularity of the materials to be ground  and the features of the raw ores has significant meaning to the improvement of grinding mill efficiency and the economic effect of the ore beneficiation.
The main features and the application ranges of the common ball mill and rod  mill used in ore beneficiation plants are as follows:
1. Grate ball mill. Its unique grate and the elevating bucket in the  fan-shaped room realized low-level impressed ore discharging, so that the ore  particles that have been ground can be discharged in time, and the qualified  particles can be used in the similar conditions. And what is more, the  utilization factor represented according to the new specified level takes into  consideration of the difference of ore feeding and the granularity of the  particles.
2. Over-flow ball mill. Overflow Ball Mill 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. Ball mill is an efficient tool for grinding many materials into  fine powder.
3. Rod mill. The grinding media inside the rod mill is steel ball, so when  the steel ball falls down, it will touch the rock materials and grinding the  materials with selection. This grinding mill is suitable for coarse grinding or  in the gravity plant that requires less over-grinding materials.

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