Fine pulverized coal processing device

Abstract

The invention provides a fine pulverized coal processing device, and relates to the field of coal mines. The fine pulverized coal processing device comprises a base shell, wherein the right side of the base shell is fixedly connected with an overturning motor; the output end of the overturning motor is slidably connected with spiral sets, inner grooves of the spiral sets are slidably connected with a cross shaft, and the output end of the overturning motor is fixedly connected with the cross shaft; the two ends of the cross shaft are sleeved with extrusion springs, the extrusion springs are located in the inner grooves of the spiral sets, the surface of the cross shaft is sleeved with an expansion spring, and the expansion spring is arranged between the spiral sets; and the upper end of the base shell is fixedly connected with an overturning cylinder, and the top end of the overturning cylinder is fixedly connected with a partition plate. According to the fine pulverized coal processing device, the motor drives a fine grinding bin to rotate, so that grinding balls repeatedly roll in the fine grinding bin; and an advancing gear drives a floating disc, so that the fine grinding bin does not rotate in a single plane mode when rotating, the fine grinding bin can float left and right while rotating, the effect of multi-directional collision grinding is achieved, and the problem that the fixed ground pulverized coal particles are large is solved.

Description

technical field [0001] The invention relates to the field of coal mines, in particular to a fine coal powder processing device. Background technique [0002] Coal powder refers to coal with a particle size of less than 0.5 mm. It is the most commonly used additive in cast iron sand. Adding coal powder to green sand for cast iron can prevent sand sticking defects on the surface of castings, improve the surface finish of castings, and reduce sand inclusions. Defects, improve the collapse function of molding sand, and for wet ductile iron parts, it can also effectively prevent subcutaneous pores. A circular vortex burner can be used, and the air does not need to be preheated. [0003] Ordinary small grinding machines for fine coal powder processing cannot meet the needs of coal powder particles, and coal powder does not need to be processed in large quantities when it is usually used by non-enterprises, so a small equipment that can meet fine coal powder processing is needed. ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a fine coal powder processing device, which solves the problems of large fixed pulverized coal particles, non-uniform diameter of pulverized coal and dead angles in the pulverized powder

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