Multistage crusher capable of achieving screening

Abstract

The invention relates to a multistage crusher capable of achieving screening. A collecting tank is arranged above a crusher body, and a coal sheet outlet in the collecting tank is connected with a first-stage crusher body. Coal sheets directly enter the first-stage crusher body to be crushed, and a second-stage crusher body is located below the first-stage crusher body. The coal sheets crushed bythe first-stage crusher body are leaked into the second-stage crusher body by themselves, and are further crushed in the second-stage crusher body. A large coal sheet screener is located below a coaloutlet of the second-stage crusher body, a moderate coal sheet screener is located below the large coal sheet screener, the coal sheets leaked from the large coal sheet screener enter the moderate coal sheet screener, and a small coal sheet collecting tank is arranged below the moderate coal sheet screener. According to the multistage crusher capable of achieving screening, the coal sheets of different sizes can be crushed, the continuous crushing performance is good, the crushed product is uniform in granularity, excessive crushing is avoided, and overall demounting, mounting and transportingare 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 destroyed, 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 producti...

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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