A mine-used differential high crushing ratio four-roller tooth crusher

Abstract

The invention discloses a mining differential high-crushing-ratio four-roller tooth-type crusher. The mining differential high-crushing-ratio four-roller tooth-type crusher comprises a one-stage crushing cavity, a two-stage crushing cavity and a linear vibration equal-thickness lattice bar screening device; materials enter the linear vibration equal-thickness lattice bar screening device from a material charge end to be subjected to equal-thickness screening; small materials falling off to the first-stage crushing cavity are shorn and crushed by a pair of small drive pin roll (13) and small driven pin roll (14) which perform opposite differential motion; large materials are rapidly conveyed to the second-stage crushing cavity under the effect of vibration force and are subjected to multi-stage crushing under the comprehensive effect of a large drive pin roll (9) and a small driven pin roll (10) which are arranged up and down and perform same-direction differential motion as well as a tooth plate (11). The mining differential high-crushing-ratio four-roller tooth-type crusher has the characteristics of high crushing ratio, high working efficiency, large processing capability, high reliability, low energy consumption, no blocking, capability of preventing excessive crushing of materials and the like.

Description

technical field [0001] The invention relates to a gear-tooth crusher, in particular to a mine-used differential high crushing ratio four-roller gear-tooth crusher. Background technique [0002] The high crushing ratio crusher can crush the bulky materials finely at one time, thus simplifying the material crushing process and reducing energy consumption and cost. Traditional high crushing ratio crushers mainly include jaw crushers, hammer crushers, impact crushers, cone crushers, etc., and mainly rely on the extrusion and impact of ore rocks to achieve crushing, so there are low crushing efficiency, Insufficient energy consumption. [0003] According to the crushing theory, the ratio of compressive strength to shear and tensile strength of ore rock is about 10:1. Compared with conventional crushers, it has the advantages of high crushing efficiency, low energy consumption, and large processing capacity. At present, the toothed roller crusher has been greatly developed at h...

AI Technical Summary

Problems solved by technology

On this basis, Chinese patent CN202290150U (patent No. 201120415907.6) disclosed "a two-stage toothed roller crusher" on July 4, 2012: the upper and lower layers are set as a pair of toothed rollers, which solves the problem of existing toothed rollers. The roller crusher is easily damaged and cannot guarantee the crushing particle size of the material, but there is also no material pre-grading mechanism

Chinese patent CN2870976 Y (patent number 200520128329.2) disclosed "a new type of four-roller impact crusher" on August 29, 2012: the upper and lower layers are crushed by gear-type crushing rollers, and the feed end Set the material distribution plate to divide the material into two directions. The material is directly crushed to less than 6mm by one machine after multiple impacts and impact crushing in the crusher; but this structure is easy to cause material blockage and excessive crushing.

[0005] To sum up, the existing crushing device of the four-roll crusher has certain defects in terms of working principle and structural design, and does not realize the graded crushing of materials, resulting in easy blockage of materials, excessive crushing of materials, reduction of crushing efficiency and throughput And other issues

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