Fine powder ball mill

Abstract

The invention relates to a high-speed superfine fine powder ball mill. A driving shaft is rotatablely arranged on a machine base; the driving shaft positioned inside the machine base is fixedly provided with a driving wheel; one side of an output end of the driving shaft is provided with a left end cover and a right end cover at fixed intervals; the left end cover is fixedly provided with a machine base flange; a grinding cylinder is arranged between the machine base flange and the right end cover; the driving shaft is arranged on the left end cover; a grinding impeller is arranged on the driving shaft; the right end cover is provided with a ball feeding opening, a slurry inlet and a ball discharging opening; the grinding cylinder is provided with a slurry outlet and a sewage outlet; the left end part of the inner wall of the grinding cylinder is provided with a left flange; the right end part of the inner wall of the grinding cylinder is provided with a right flange; a ring-shaped isolation board is arranged between the left flange and the right flange; grinding balls are put on the inner wall of the right-shaped isolation board; and the ring-shaped isolation board, the left end cover, the right end cover, the left flange and the right flange form a grinding chamber. The high-speed superfine fine powder ball mill has good filter efficiency, needs fewer grinding balls, is difficult to generate heat in the operational process and has low requirements on a cooling system.

Description

technical field [0001] The invention relates to a processing equipment for superfine powder slurry, in particular to a high-speed, superfine fine powder ball mill. Background technique [0002] At present, in the production fields of coatings, fuels, inks, magnetic materials, powder metallurgy, bioengineering, battery materials, electronic ceramics and structural ceramics, the axial length of the cylinder of the ball mill used to process fine powder is relatively long, and its axial length is relatively long. The length is 3 to 5 times its diameter. Due to the long axial length of the cylinder, the volume of the inner cavity is large, and more grinding balls are required, which not only tends to generate heat during operation, but also has more grinding balls in ineffective motion. Therefore, this ball mill has higher requirements on the cooling system. And because the axial length of the cylinder is long, usually only the screen is set near the outlet of the cylinder, so ...

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Problems solved by technology

And because the axial length of the cylinder is long, the screen is usually only installed near the outlet of the cylinder, so that the ratio of the area of ​​the screen to the area of ​​the inner wall of the cylinder is small, and the filtration efficiency is not high.

In addition, due to the longer axial length of the cylinder and the larger inner cavity volume, larger grinding balls are usually used

The use of larger grinding balls will cause the ground powder to agglomerate, and the grinding balls will form segregation, which will reduce the grinding efficiency and increase the wear of the grinding medium. At the same time, more grinding balls are required, which makes the use cost higher

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