Grinding drum and stirring mill of grinding and crushing machinery

Abstract

The invention discloses a cylindrical barrel of grinding machine, in which the shaft of the grinding machine can be set to stirring. One end of the barrel is set a discharge hole, and off a certain distance from the hole there is a rotating speed transmission span, where the distance from the point on the inwall lateral section to the center of the rotating axis are different, which makes the powder rotating in the lateral section in variably velocity. Also, the invention relates to a stirring grinder, including a grinding barrel, a actuating mechanism and a rotating chief axis, wherein the barrel has the said structure, and the rotating chief axis is set inside the barrel along the barrel axis, the actuating mechanism drives the rotating chief axis to rotate. The polygonal structure off the discharge hole of the invention makes the shearing, compression, collision in the different sections of the same barrel, which homologous to the grinding process with several device and circulation: shearing, compression, again shearing, again compression.

Description

【Technical Field】 [0001] The invention relates to the grinding and crushing of materials, in particular to a grinding cylinder and a stirring mill of a grinding and crushing machine. 【Background technique】 [0002] At present, the widely used powder preparation machinery at home and abroad is a ball mill. The traditional ball mill uses the rotation of the barrel of the ball mill to bring the ball mill in the barrel to a certain height to store energy. During the falling process of the ball mill, an impact force is formed to hit the material to achieve the effect of crushing the material. This powder preparation method has simple equipment, and can obtain powder with a particle size that meets the requirements by lengthening the working time. Another feature is uniform mixing. Its obvious disadvantages are large area, high energy consumption, low production efficiency, and coarse powder particle size. [0003] In addition, there are traditional ultra-fine equipment, which can be c...

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Problems solved by technology

The material can be a slurry or a dry powder. The agitator shaft drives the medium and the material to rotate. The material in the cylinder and the medium gradually become thinner by collision and friction with each other. However, the original particle size of the material cannot be completely the same, and the cylinder body Most of them are cylindrical, so the external stress on the material in the stirring mill is the same as the grinding method, so that the final particle size distribution of the material cannot be concentrated in a small range, either under-grinding or over-grinding, and the particle size distribution cannot be accurately controlled.

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