Material dispersion device for vertical mill

Abstract

The invention discloses a material dispersing device for a vertical grinder. The material dispersing device comprises a positive cone ring and a negative cone ring which are arranged in an annular space between a grinder shell of the vertical grinder and a grinding barrel of the vertical grinder; and the positive cone ring and the negative cone ring are distributed axially at a certain interval along the grinder shell. Due to the adoption of the material dispersing device for the vertical grinder, the falling time of a ground material ground with a roller mill in the falling process can be prolonged, the material is fully dispersed in the rolling processes of the positive cone ring and the negative cone ring and can be repeatedly impacted, dispersed and separated by rising air flow, the powder selecting efficiency is increased, and the yield of the grinder is remarkably increased. The invention further discloses a material dispersing device for a vertical grinder. The material dispersing device comprises dispersing plates obliquely arranged in an annular space between the grinder shell and the grinding barrel; a plurality of layers of dispersing plates are arranged at intervals along the axial direction of the grinder shell; and each layer of dispersing plates consists of a plurality of dispersing plates which are arranged at intervals along the circumference of the grinder shell.

Description

technical field [0001] The invention relates to the technical field of vertical mills, in particular to a material dispersing device for vertical mills. Background technique [0002] The vertical mill is suitable for grinding and crushing various materials. The materials produced by the vertical mill have uniform particle size and fine particles. The vertical ball mill can also mix several kinds of materials very uniformly. It is widely used in cement, chemical industry Raw materials, abrasives, ceramics, ores, coal powder, metal powder, magnetic materials, etc. Due to the unique grinding performance of the vertical mill, it has been widely used in the industry. [0003] Such as figure 1 As shown, the current vertical mill comprises a housing 102, a driving device 101, a vertical grinding cylinder 103 driven by the driving device 101, a grinding roller 106, and a pressurizing device 108 acting on the grinding roller 106. 108 is provided with pressure by oil cylinder 109 ....

AI Technical Summary

Problems solved by technology

This method of relying on a large amount of ultra-high-speed air to blow a large amount of coarse and fine-grained materials to the upper part of the mill and fall into the grinding area will consume a lot of energy. The material will fall into the bottom of the mill shell and be discharged outside the mill. This method will cause other problems. These problems are mainly due to the fact that the material falling from the annular space between the shell and the grinding drum is not delayed and dispersed or is only When the falling is delayed, a large amount of mixed coarse and fine materials cannot be fully dispersed, resulting in a lot of fine powder that cannot be separated by the air and is discharged out of the machine together with the coarse powder.

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