An automatic feeding type coal grinding device based on a thermal power plant

Abstract

The invention relates to the technical field of coal mills, and discloses an automatic unloading type coal grinding device based on a thermal power plant, including a main box, a transmission box and a main motor, the bottom of the main box and the top of the transmission box Fixed connection. Based on the automatic feeding type coal grinding device for thermal power plants, by setting a load-bearing plate, a push plate, the first material distribution port, the second material distribution port, the first collection box, the second collection box, and the first outer pipe , the second outer pipe, etc., after the coal lumps thrown out of the millstone under the centrifugal force fall onto the load-bearing plate, the push plate rotates under the drive of the transmission shaft and pushes the coal lumps along the way, passing through the through groove set inside the load-bearing plate When it falls into the first collection box and the second collection box, it is transmitted to the first transmission device and the second transmission device by the first screw rod and the second screw rod, and finally returns to the main box body by the material inlet. It solves the problem that the coal block inside the existing equipment can be completely taken out, which causes a certain waste of resources and increases the operating cost of the thermal power plant.

Description

technical field [0001] The invention relates to the technical field of coal pulverizers, in particular to an automatic unloading coal pulverizer for thermal power plants. Background technique [0002] Coal-fired boilers in thermal power plants are usually connected to a coal mill, and the coal mill pulverizes the coal input from the outside, and then sends it into the coal-fired boiler to burn for power generation. Because the coal mill can pulverize the coal into powder The coal burning expands the contact area with the air, so that it can burn quickly and improve the combustion efficiency. [0003] At present, most of the coal mills used in thermal power plants are medium-speed coal mills. The surfaces of the crushing devices inside the coal block coal mills are squeezed and ground to be crushed, and then the powdered coal is crushed by wind. The pulverized coal is blown out of the coal mill. Because some coal blocks cannot be completely ground into coal powder, under the...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an automatic feeding type coal grinding device based on a thermal power plant, which can completely collect the coal lumps randomly dropped at the bottom of the coal mill, and recycle these coal lumps It has the advantages of feeding into the inside of the coal mill for grinding treatment, etc., which solves the problem that the existing equipment has a through hole at the bottom of the coal mill to take out the coal that is not completely pulverized, but because the falling point of the coal is not fixed, the Cause some coal blocks to fall to a place far away from the mouth, even with tools, these coal blocks cannot be completely removed, resulting in a certain waste of resources and increasing the operating cost of thermal power plants

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