Coal crushing device with screening function

Abstract

The invention provides a coal crushing device with a screening function. The coal crushing device comprises a crushing box, a top cover, a coal containing box and a centrifugal crushing mechanism used for crushing and screening coal, wherein the bottom end of the crushing box is fixedly connected with a lower-layer annular plate, and the top end of the crushing box is fixedly connected with an upper-layer annular plate; and the lower surface of the lower-layer annular plate is fixedly connected with the coal containing box, the coal containing box is communicated with the crushing box, and the surface of the upper-layer annular plate is fixedly connected with the top cover. The invention relates to the coal mine electromechanical field. According to the coal crushing device with the screening function, the crushing device capable of continuously impacting and dispersing the coal and coal gangue in a concentrated manner is designed according to the problem that existing coal gangue is wrapped with the coal and is difficult to disperse, and the coal is crushed and dispersed under the action of centrifugal force and inertia, so that the problems that the coal gangue wrapped with the coal is difficult to fully separate by a common coal crushing device, the coal gangue is difficult to crush by the crushing device, and the working efficiency is influenced to a certain extent are effectively solved.

Description

technical field [0001] The invention relates to the field of coal mine electromechanical technology, in particular to a coal crushing device with a screening function. Background technique [0002] Gangue, also known as coal gangue, is a kind of rock that is associated and symbiotic with coal during the formation of coal. It is a solid waste produced in the process of coal mining and washing. Coal gangue is harder than coal and has a gray surface. Or dark gray, people usually distinguish coal gangue according to the color, and often use sensors to identify and screen coal gangue. Although this method can pick out coal gangue, it is difficult to sort out some coal gangue mixed with coal. Coal is being mined Finally, the coal needs to be crushed according to certain needs. During the crushing process, coal gangue may also be mixed in. However, coal gangue has high hardness and is difficult to be crushed in the crushing work, and it is easy to deposit. Coal gangue is likely to...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a coal crushing device with a screening function, which solves the problem that it is difficult for a general coal crushing device to fully separate the coal gangue wrapped in coal, and it is difficult for the crushing device to crush the coal gangue. Problems affecting work efficiency to a certain extent

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