Efficient upright ball mill

Abstract

The invention discloses an efficient upright ball mill, which comprises a milling bucket, a ball mill unit and a control unit, wherein the milling bucket is fixedly arranged at the middle lower part inside a shell; the milling bucket is used for holding milling balls and milling materials to be processed; the ball mill unit is used for ball milling of the milling balls and the milling materials to be processed and comprises a motor, a milling shaft and rotary vanes; the milling shaft is connected with an output shaft of the motor; the rotary vanes are arranged on the milling shaft; the control unit is used for controlling the rotation of the ball mill unit; before the ball mill unit is stopped, the ball mill unit is controlled by the control unit to turn inversely; the rotary vanes rotate along a reverse helix direction so as to generate reverse thrust to the milling balls and the milling materials inside the milling bucket, then the rotary vanes are disassociated from the area of the milling balls and the milling materials inside the milling bucket and are suspended at the area above the milling balls and the milling materials, and consequently, starting current of the motor is safe starting current while the upright ball mill is started again.

Description

technical field [0001] The invention relates to a high-efficiency vertical ball mill, in particular to a wet vertical ball mill. Background technique [0002] Chinese patent 20112020205.5 discloses a ball mill, including a cylinder, the surface of the cylinder is provided with a plurality of bolt holes in the axial direction and radial direction, a cylinder cover is provided outside the cylinder, and there is a gap between the cylinder cover and the cylinder, and through Bolts are fixedly connected as a whole, and a plurality of vanes are arranged on the inner surface of the cylinder. This utility model patent can reduce the noise of the ball mill in operation to 30-40 decibels, so there is no need to build a soundproof room when installing the ball mill, which reduces the cost and floor space, and greatly improves the operating environment, especially suitable for horizontal ball mills . [0003] In addition, Chinese patent 20101011104.8 discloses a ball mill with reduced...

AI Technical Summary

Problems solved by technology

However, in cold and icy weather, in order to prevent the grinding balls and abrasives from freezing together in the grinding barrel and cause difficulty in starting the next time, generally the balls and abrasives should be cleared out of the grinding barrel after the vertical ball mill stops. After the vertical ball mill starts normally next time, put the removed balls and abrasives back into the grinding barrel, which not only brings a lot of inconvenience to the work after the shutdown, but also greatly reduces the working efficiency of the vertical ball mill

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