Bidirectional reversible fine crusher capable of conveniently adjusting particle size of crushed materials

Abstract

The invention discloses a bidirectional reversible fine crusher capable of conveniently adjusting the particle size of crushed materials, and the problems of how to conveniently adjust the particle size of the crushed materials and further improve the crushing uniformity of the materials are solved. A traditional arrangement mode that a row of hammer head assemblies are arranged on each hammer shaft at equal intervals and the hammer head assemblies arranged in a matrix mode are formed on the side face of the outer circle of a hammer disc is changed into a mode that the hammer head assemblies arranged on the adjacent hammer shafts on the side face of the outer circle of the hammer disc are arranged in a staggered mode in the axial direction, so that the hammer head assemblies are arranged on the side face of the outer circle of the hammer disc in a spiral line manner, the central axes of the spiral lines coincide with the central axis of a rotor main shaft, and a spiral gap groove is formed between every two adjacent spiral lines; and a crushing plate is changed from a whole block type to a two-section connection type, the two connection sections are connected in a hinged mode, adjusting lead screws are arranged for the sections respectively, so that the purpose of independently adjusting the gap between the crushing plate and a hammer head can be achieved, and the precision of gap adjusting operation is improved.

Description

technical field [0001] The invention relates to a fine crusher for crushing materials, in particular to a two-way reversible fine crusher for conveniently adjusting the particle size of crushed materials. Background technique [0002] Circulating fluidized bed boilers have relatively small requirements on coal particle size and high uniformity requirements. Coal particle size and uniformity are one of the important factors affecting the stable combustion of boilers; the coal supplied to circulating fluidized bed boilers, Generally, it needs to be crushed first to achieve the required particle size and uniformity before it can be supplied to the boiler for combustion; the crushing of coal-fired coal is completed by a fine crusher, and a rotor is arranged in the cavity of the fine crusher, and a hammer is arranged on the rotor. Assemblies, coal, through the belt conveyor, continuously enter the upper part of the fine crusher cavity from the inlet above the fine crusher, the ro...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a two-way reversible fine crusher for conveniently adjusting the particle size of crushed materials, which solves the technical problem of how to conveniently adjust the particle size of crushed materials and further improve the uniformity of crushed materials

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