Coal briquette smashing device for coal mining

Abstract

The invention discloses a coal briquette smashing device for coal mining. A primary conveying belt for automatically conveying primary-smashed coal briquettes to a secondary coal briquette smashing assembly is arranged below a primary coal briquette smashing assembly, a secondary conveying belt for loading the secondary-smashed coal briquettes into a truck is arranged on a coal outlet of the secondary coal briquette smashing assembly, and a dust exhaust hood is arranged above the secondary coal briquette smashing assembly. During primary smashing, the size of coal briquettes can be adjusted as needed through an adjusting plate, an eccentric fly hammer is arranged for impact, large coal briquettes are subjected to primary smashing at first, and a vibration device is arranged so as to effectively prevent coal briquettes from blocking primary coal briquette screening openings and prevent the blocking phenomenon; during secondary smashing, a centrifugal barrel can rapidly throw away coal briquettes to a smashing blade on a smashing barrel, the coal briquettes are further smashed, smashing efficiency is effectively improved, coal briquettes can be effectively prevented from blocking a secondary coal briquette screening opening through a rotating sleeve arranged at the secondary coal briquette screening opening, and smashing efficiency is greatly improved.

Description

technical field [0001] The invention relates to a coal block crushing device for coal mining, which belongs to the technical field of coal mining. Background technique [0002] In coal mining, the initially mined coal blocks are generally large and are not suitable for direct shipment. Generally, the larger coal blocks need to be crushed so that they can be directly loaded and transported after being transported out. However, one of the current coal mining crushing devices generally adopts oppositely arranged gear teeth to crush the coal block. Although the structure of this crushing device is simple, the crushing efficiency is low, and it is easy to cause jamming during the crushing process. It is easy to burn out the motor, which greatly affects the crushing efficiency of the coal block, and can't realize the crushing of the larger coal block. The other is to use vibration, which has low crushing efficiency and poor crushing uniformity, and is difficult to meet the requir...

AI Technical Summary

Problems solved by technology

However, one of the current crushing devices for coal mines generally adopts oppositely arranged gear teeth to crush the coal lumps. Although the structure of this crushing device is simple, the crushing efficiency is low, and it is easy to cause jamming during the crushing process. It is easy to burn out the motor, which greatly affects the crushing efficiency of coal blocks, and it is impossible to crush larger coal blocks

The other is to use vibration, which has low crushing efficiency and poor crushing uniformity, and it is difficult to meet the requirements of high-efficiency coal crushing

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