Zhengzhou stars explain the ball mill's points and shortcomings

Zhengzhou stars explain the ball mill's advantages and disadvantages Concentrate ball mill is the material from the feeding device through the hollow shaft into the mill evenly into the mill warehouse, the chamber has a step liner or corrugated liner, containing different specifications of steel balls, cylinder rotation The centrifugal force is generated to bring the steel ball to a certain height and fall down, which will cause a heavy blow and grinding effect on the material. After the material reaches rough grinding, it enters the second bin through a single-layered barrier plate. The bin is set with a flat liner and contains steel balls to further grind the material. The powder is discharged through the discharge sampan plate to complete the grinding operation.
The disadvantages of the beneficiation ball mill:
(1) Low work efficiency and large unit power consumption.
(2) As the ball mill barrel speed is low (about 15 ~ 27r/min), if ordinary motor drag, All need to be equipped with expensive speed reducers.
(3) At the same time as the grinding medium impacts and grinds the material, itself and parts of the ball mill barrel liner are also worn away, so the metal material consumption is large. However, there have been many kinds of wear-resistant alloy grinding media and liners, which greatly reduce the consumption of metal materials per unit material.
(4) The operation is noisy and accompanied by strong vibration.
It can be seen that improving the grinding efficiency of ball mills and reducing unit power consumption is the main attack direction for the manufacture of ball mill equipment, technological transformation, and development of new processes, new technologies, and new equipment.
The advantages of beneficiation ball mills are as follows:
(1) It has strong adaptability and can grind for most materials.
(2) Continuous operation, and the production capacity can meet the needs of large-scale production in modern industry.
(3) The comminution ratio is large and reaches 300 or more in general and 1000 or more in the case of ultrafine grinding. And product fineness and gradation are easy to adjust 6
(4) Can adapt to different conditions of operation, and reliable operation. For example, smashing and drying, smashing and mixing are carried out at the same time; it can be used both for dry smashing and wet smashing; for closed-circuit grinding and open-circuit grinding.
(5) The structure of the single tube, mechanical reliability, wear parts easy to check and replace.
(6) The process is mature and can be standardized.
(7) It has good sealing performance and can be operated under negative pressure so as to avoid flying dust, improve working conditions and prevent air and environmental pollution.

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