Coal refilling and screening conveyer for large coal pulverizer

Abstract

The invention discloses a coal filling and screening conveyor for a large-scale coal crusher. A first auger and a second auger are arranged in the conveying trough, and a support is connected to the bottom of the conveying trough, and a first driving motor is arranged on the support and a second drive motor, the first drive motor and the second drive motor respectively drive the rotation of the first auger and the second auger, the top of the transfer trough is connected to a screening trough, the end of the screening trough is connected to a dispersion trough, and the dispersion trough A plurality of shunting metal rods are arranged along the direction of coal flow inside, and a coal outlet is arranged at the end of the dispersing groove. The coal filling and screening conveyor of the large coal crusher of the present invention transmits the coal lumps through two augers in the conveying tank. After the coal lumps are twisted to the screening tank, the small particle impurities in them will be filtered by the sieve plate, and then the coal lumps Entering the dispersing tank, the shunting metal rods set in the tank have the effect of draining and dispersing the coal blocks, avoiding the accumulation of large volumes of coal mines, reducing the jamming of the crushing ring, and ensuring the stable operation of the coal crusher.

Description

technical field [0001] The invention relates to a coal feeding and screening conveyor for a large coal crusher. Background technique [0002] The coal crusher is a kind of impact rotor crusher with a crushing ring. The crushing ring is suspended on the suspension shaft that rotates with the rotor. The crushing ring rotates and impacts with the rotor, and also spins around the suspension shaft; The process is accomplished through two stages of work on the broken ring. When the material enters the crushing cavity, it will be impacted and crushed by the rotating crushing ring in the first section. In the second stage, the primary crushed particles falling on the sieve plate are further crushed by the crushing ring and discharged through the sieve holes at the same time. A small amount of material that cannot be crushed goes into the waste room and is periodically removed from the waste room. The coal material of the large coal crusher currently used is generally directly i...

AI Technical Summary

Problems solved by technology

The coal material of the large coal crusher currently used is generally directly injected into the crushing cavity, but these coal materials are often mixed with impurities, and some large coal blocks are easy to pile up together, causing the crushing ring to be stuck. Affect the normal operation of the coal crusher, and even cause machine failure

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