Screening, transferring and crushing system for underground belt transportation section

Abstract

A screening, transferring and crushing system for an underground belt transportation section comprises a belt conveyor, a screening transferring machine, a screening crusher and a scraper transferringmachine. The input end of the screening transferring machine is located on one side of the output end of the belt conveyor, the output end of the screening transferring machine is arranged at the upper end of the screening crusher, the scraper transferring machine is arranged at the lower end of the screening crusher, the input end of the scraper transferring machine is arranged below the input end of the screening transferring machine, and the bottom of the scraper transferring machine is horizontally arranged. The screening, transferring and crushing system can achieve raw coal mixture screening and crushing underground, then, small raw coal is conveyed out a well, the situation of raw coal mixture excessive pulverizing is greatly reduced, and the problem about raw coal excessive pulverizing is solved. The screening crusher only crushes large raw coal, the screening crusher workload is greatly reduced, the operation and maintaining cost of the screening crusher is reduced, the scraper transferring machine only conveys small raw coal, the conveying efficiency is high, the abrasion rate is obviously reduced, and the system cost is further reduced.

Description

technical field [0001] The invention relates to the technical field of coal mining and conveying devices, in particular to a screening, transfer and crushing system for an underground belt transportation section. Background technique [0002] The crushing and transfer system is one of the essential links in the coal mine underground transportation system. Its main function is to crush the raw coal that is transported in large pieces, strips, sheets, etc., which is likely to cause jams in the transportation system of the coal washing plant, before entering the coal washing plant. . [0003] In the traditional coal mine transportation system, the raw coal crushing and transfer system is generally arranged on the mine floor or at the unloading port of the coal bunker. Regardless of the particle size, it needs to pass through the crusher, which causes some raw coal to be over-crushed. The crushing capacity, reliability, wear resistance and other requirements of the crusher are ...

AI Technical Summary

Problems solved by technology

[0003] In the traditional coal mine transportation system, the raw coal crushing and transfer system is generally arranged on the mine floor or at the unloading port of the coal bunker. Regardless of the particle size, it needs to pass through the crusher, which causes some raw coal to be over-crushed. The crushing capacity, reliability, and wear resistance of the crusher have high requirements, and the daily maintenance of the equipment is relatively large, which indirectly increases the system cost.

Images