A screenable multi-stage crushing crusher

Abstract

The invention relates to a multi-stage smashing crusher with a screening function. A collecting tank is arranged on the upper portion of a body of the crusher, a coal briquette outlet in the collecting tank is connected with a first-stage crusher, and coal briquettes directly enter the first-stage crusher to be crushed; a second-stage crusher is arranged below the first-stage crusher, and the coal briquettes crushed by the first-stage crusher enter the second-stage crusher in a natural leakage manner to be further crushed in the second-stage crusher; a large-particle coal briquette screener is arranged below a coal outlet of the second-stage crusher, a middle-particle coal briquette screener is arranged below the large-particle coal briquette screener, and the coal briquettes leaking from the large-particle coal briquette screener enter the middle-particle coal briquette screener; and a small-particle coal briquette collecting tank is arranged below the middle-particle coal briquette screener. Coal briquettes of different sizes can be crushed through the multi-stage smashing crusher, and continuous crushing performance is good; and the granularity of the crushed products is uniform, over crushing is avoided, and overall disassembly, assembly and transportation are convenient.

Description

technical field [0001] The invention belongs to the field of mining equipment, and in particular relates to a screenable multistage crushing crusher. Background technique [0002] With the modernization of the coal industry, major changes have taken place in the coal mining process, and the top-coal caving process has been scientifically applied and developed. When the hardness of the coal is f2, the strength of the coal is not easy to be damaged, and the caving coal is easy to form lumps. When the working face encounters a fault, the number of lumpy rocks increases, and lumpy coal and lumpy rocks are not easy to pass through the loader or loader. Points, and damage to transportation equipment in the form of bumping, bumping, smashing, etc., will bring difficulties to safe transportation underground. Crusher is to fully crush lumpy coal and massive rock so that it can pass through the reloading machine or reloading point smoothly to ensure safe transportation and production...

AI Technical Summary

Problems solved by technology

Jaw crushers and hammer crushers are the most used among them. Although these crushers have played a good crushing role, there are also some problems in use. Although jaw crushers can crush larger lumps of coal, they are Poor continuous crushing performance; although the hammer crusher has good continuous crushing performance, the size of the crushed coal is limited to a certain extent. Coal deposits are easily formed at the coal inlet of the crusher, and over-crushing

In addition, once the existing crusher fails, production will be interrupted, resulting in frequent downtime and maintenance

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