Coal-quality detecting system pulverized coal fine-grinding equipment

Abstract

Coal-quality detecting system pulverized coal fine-grinding equipment is used for achieving fine-grinding of pulverized coal and comprises a grinding chamber and a grinding main body which are vertically arranged. A motor for driving a rotary shaft in the grinding chamber to rotate is arranged in the grinding main body, and a plurality of grinding plates located in the grinding chamber are fixed to the rotary shaft. One ends of the grinding plates are fixedly connected with the rotary shaft, and the other ends of the grinding plates face the inner wall of the grinding chamber and provided with oblique planes. The ends, provided with the oblique planes, of the grinding plates are matched with the inner wall of the grinding chamber to act to grind the pulverized coal. A material bin is arranged above the grinding chamber, a material inlet is formed in the side wall of the material bin, and materials added into the material bin through the material inlet fall into the grinding chamber. A pulverized material falling port is formed in the side wall of the grinding chamber, and a screen net is arranged on the position, at the connecting position of the pulverized material falling port and the grinding chamber, of the side wall of the grinding chamber. An electric heating layer is arranged on the inner wall of the grinding chamber. Through the fine-grinding equipment, the particle size and humidity of the pulverized coal subjected to fine-grinding can meet the requirement of coal-quality detecting.

Description

technical field [0001] The invention relates to the technical field of pulverized coal grinding, in particular to fine pulverized coal grinding equipment for a coal quality detection system. Background technique [0002] When the grinding equipment in the prior art is grinding the material, the grinding process mainly crushes the material through the impact and grinding action of the grinding medium (steel rod, steel ball, gravel or ore itself), and its production particle size is generally less than 5mm. Grinding is done in a continuously operating cylinder filled with a certain amount of grinding media. When the cylinder rotates, the grinding medium rises, falls and tumbles, resulting in impact and grinding. However, the grinding particle size and dry humidity of the existing grinding equipment cannot meet the requirements of coal quality testing. Contents of the invention [0003] The purpose of the present invention is to provide a coal fine grinding equipment for a...

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