Hammer for pulverizer

Abstract

The invention aims to provide a hammer for a pulverizer. The hammer for the pulverizer can improve the crushing efficiency and prolong the service life. The hammer for the pulverizer is structurally characterized by comprising a sheet-shaped hammer parent body, one end of the hammer parent body is provided with a pin hole (1), wear-resistant materials are resurfacing welded on the two right-angledparts of the other working end of the hammer parent body, namely, a side end surface (2) and a front end surface (3), and the wear-resistant materials are made of tungsten carbide alloy. The hammer for the pulverizer is characterized in that at two right-angled positions of the other working end of the hammer body parent body, straight angles are symmetrically removed, so that an inclined pushingend surface (4) is machined, the inclined pushing end surface (4) is connected with the front end surface (3) and the side end surface (2), the wear-resistant materials are resurfacing welded to forma fan-shaped end surface (5), and the fan-shaped end surface (5) is connected and resurfacing welded to an upper and lower plane (8) adjacent to the fan-shaped end surface (8) to form a ball head (6), so that the cutaway view of the side surface of the hammer is provided with a matchstick with the ball head.

Description

technical field [0001] The invention relates to a hammer of a pulverizer, especially used in water drop pulverizers, micro pulverizers, vertical pulverizers, double rotor pulverizers, multi-chamber pulverizers, washboard pulverizers, sieveless pulverizers, etc. The hammer used. Background technique [0002] The hammer used in the pulverizer in the prior art is in the shape of a rectangular sheet, see the national standard: SB / T10118-92, hammer pulverizer---hammer, one end of the hammer matrix is ​​provided with a pin hole (1), Its function is to connect with the rotor through pins, screws, etc. The other end of the hammer is the crushing working end surface, which is composed of the front end surface (3), the side end surface (2) and the upper and lower planes (8). Usually the hammer body is made of ordinary steel, and the front end face (3) and side end face (2) of the working end face are surfacing welded with wear-resistant materials such as tungsten carbide, and the ent...

AI Technical Summary

Problems solved by technology

Hammer, as an important working part of the pulverizer, currently has the problems of low crushing efficiency and short service life

One of the reasons is that the working end surface of the common hammer is flat. When the material is hammered, the material is pushed forward, so that the material moves at a high speed in the same direction as the hammer, and a rotating material ring is formed in the inner cavity of the screen of the pulverizer. , which weakens the impact speed difference between the subsequent hammer and the material, and reduces the crushing efficiency. At the same time, the sieve hole is in the normal direction, and the material movement is in the tangential direction, which is also unfavorable for the discharge capacity of the pulverizer; the second is the ordinary hammer. The end face is subject to the frontal impact of the material for a long time, and the phenomenon of tungsten carbide fine particles falling off is prone to occur

Therefore, for a long time, it is difficult for the hammer used in the pulverizer to make a major breakthrough in the pulverization efficiency and service life.

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