Dust cover for coal mine conveyor belt

Abstract

The invention discloses a dust cover for a coal mine conveying belt and belongs to the field of coal mine conveying belt windproof equipment. A transverse upper baffle (3) is fixed above the conveying belt (11) on the two sides of a baffler (6), side baffles (7) are fixed to the two sides of the conveying belt (11), and wind shields (14) are fixed to front end openings of the upper baffle (3) and the side baffles (7). Multiple dust catching baffles (10) are further fixed behind the wind shields (14) at intervals, and the wind shields (14) and the dust catching baffles (10) are made of flexible materials and vertically fixed to the upper side of the conveying belt (11). The wind shields are used for blocking high-speed wind flows, meanwhile, the dust catching baffles make wind speed decrease gradually, large-particle coal can be blocked and fall back on the belt, small-particle coal dust falls back on the conveying belt when reaching a zone which is slow in wind speed along with gradual decrease of wind speed, so that the coal dust is prevented from being mixed into wind flows, the windproof effect is good, the working environment is improved, and safety production of a coal mine is guaranteed.

Description

technical field [0001] The utility model relates to a dustproof cover for a coal mine conveyor belt, which belongs to the field of windproof equipment for a coal mine conveyor belt. Background technique [0002] In order to ensure personnel safety and production needs, an adjustment wall is built in the mine, and an adjustment window is set on the adjustment wall. The air volume is adjusted by changing the section of the adjustment window. According to the needs of mine transportation and ventilation, part of the conveyor belt needs to pass through the adjustment wall. When the air flow passes through the belt hole of the adjustment wall, the ventilation section suddenly becomes smaller, and the wind speed passing through the belt hole will increase. When the belt carries coal, the high-speed air flow will blow the coal out of the belt, and large particles of coal dust will be blown out of the belt. The accumulation near the wall needs to be cleaned manually, and small part...

AI Technical Summary

Problems solved by technology

When the air flow passes through the belt hole of the adjustment wall, the ventilation section suddenly becomes smaller, and the wind speed passing through the belt hole will increase. When the belt carries coal, the high-speed air flow will blow the coal out of the belt, and large particles of coal dust will be blown out of the belt. The accumulation near the wall needs to be cleaned manually, and small particles of coal dust will be blown up and mixed into the air flow. These small particles of coal dust not only pollute the air flow and further deteriorate the underground working environment, but also increase the concentration of coal dust in the air flow, causing safety hazards , the inventor found during the experiment that if a hard windshield is used, the coal on the conveyor belt will easily collide with the windshield, but if a flexible windshield is used, because the wind speed at the belt hole is very large, the high-speed air flow is very It is easy to blow up the flexible windshield, the windshield effect is very poor, and the purpose of dust prevention cannot be achieved

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