a pulverizer

Abstract

The invention provides a pulverizer. The pulverizer comprises a pulverizing structure and two drive devices. The pulverizing structure comprises a shell, two impellers, two material guiding bodies reversely arranged in the shell, and two air guiding parts. The two impellers are arranged in the two material guiding bodies. The two material guiding bodies communicate with each other, one material guiding body is provided with a first guide rail corresponding to one impeller, the other material guiding body is provided with a second guide rail corresponding to the other impeller, the second guide rail is connected with the lowest point of the first guide rail, and the second guide rail is located below the corresponding impeller. Feeding air inlets for conveying materials are formed in the center, right opposite to the two impellers, of the shell. Discharging ports communicating with the second guide rail are formed in the top of the shell, and the two air guiding parts are installed on the two material guiding bodies with the same number. The two drive devices are arranged on the shell, connected with the two impellers and used for driving the two impellers to reversely rotate with the same speed to generate high-pressure wind power, accordingly, the materials are driven to move along the first guide rail to form material columns, the two material columns oppositely move along the second guide rail and then collide, and high-pressure wind power in the material guiding bodies blows powder generated after collisions out of the discharging ports through the air guiding parts.

Description

【Technical field】 [0001] The invention relates to a pulverizer, in particular to a collision pulverizer. 【Background technique】 [0002] At present, the crushing methods in the powder processing industry include extrusion crushing, impact crushing, friction shearing crushing, and splitting crushing. The purpose of crushing is to repeatedly apply external force to make the crushed object continuously broken and split to achieve a certain fineness (mesh number). From this point of view, the existing methods of crushing materials for powder processing require external force on the one hand, and second media, such as abrasive tools and abrasives, to act on the object to be crushed. However, once these crushing processes It is very difficult to further increase the fineness of the powder to achieve a certain crushing fineness (such as ring roller mill to 2500 mesh). In addition, the energy consumption of this milling process is high and the production efficiency is low (such as ...

AI Technical Summary

Problems solved by technology

From this point of view, the existing methods of crushing materials for powder processing require external force on the one hand, and second media, such as abrasive tools and abrasives, to act on the object to be crushed. However, once these crushing processes It is very difficult to further improve the fineness of the powder to achieve a certain crushing fineness (such as ring roller mill to 2500 mesh). In addition, the energy consumption of this milling process is high and the production efficiency is low (for example, a certain model The ring roller mill produces products with a fineness of 2500 mesh, its total power is 170kw, the output is about 0.75 tons / hour, and the power consumption reaches 220kwh / ton)

Therefore, the existing powder processing technology and equipment cannot meet the needs of modern industry for ultrafine powder and ultrafine powder, and the structure is complex and energy consumption is high.

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