Hammer crusher

Abstract

The invention discloses a hammer crusher. The hammer crusher comprises a housing with a crushing cavity, a crushing assembly arranged in the crushing cavity, a feeding channel formed in the upper portion of the housing and a received material screening assembly arranged on the lower portion of the housing, wherein the received material screening assembly comprises a box body and an oblique screenplate arranged in the box body, a dropping opening is formed in the bottom of the box body, a cycle feeding assembly communicating with the feeding channel is arranged on a screened material outlet, the feeding channel is obliquely arranged, and the opening diameter of the feeding channel is gradually increased from the top down, and a material guiding assembly is arranged on the inner wall of theside wall of the upper portion of the feeding channel. By arranging the received material screening assembly, the hammer crusher can screen materials large in granularity and not completely crushed and convey the materials to the crushing cavity so as to crush the materials once more, and is high in crushing quality, and due to the fact that feeding channel is of a big-end-down structure and thematerial guiding assembly is arranged, jamming of the bulky materials in the feeding channel is effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of crushers, and in particular relates to a hammer crusher. Background technique [0002] Hammer crusher is a kind of equipment that crushes materials in the form of impact, which is divided into two types: single rotor and double rotor. Hammer crushers are mainly used for crushing medium-hard materials in cement, chemical, electric power, metallurgy and other industrial sectors, such as medium or fine crushing of limestone, slag, coke, coal and other materials with large particle sizes. [0003] The existing hammer crusher mainly includes a box body, a rotor arranged in the box body and a motor driving the rotor to rotate. The inner wall of the box body is also provided with a counter-attack liner; the top of the box body is provided with a feed pipe, and the bottom of the box body A sieve plate is provided; a number of hammer heads are provided on the rotor. When in use, start the motor, and the motor dr...

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned technical solution also has the following technical problems: 1, because the particle size of the material crushed by the hammer crusher is large, it is easy to cause the feed pipe to be blocked; 2, the crushed material is screened by setting a sieve plate, and The material with larger particle size is left on the sieve plate. When the hammer head crushes the material with larger particle size again, the hammer head will hit the sieve plate, causing the sieve plate to be easily damaged.

However, the pre-crushing part of this patent is a pressing plate driven by the driving part. When the pressing plate is rolling the material, it is prone to failure and will hinder the normal falling of the material, causing blockage indirectly; at the same time, during the use of the patent, The movement of the sieve plate is controlled by the air bag associated with the driving part to discharge the larger materials that have been screened out, the discharge efficiency is low, and the structural safety is low

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