Underground vibration sieve for separating and dehydrating water coal

Abstract

An underground vibration sieve for separating and dehydrating water coal belongs to the technical field of conveying equipment under coal mines, and comprises a vibration sieve body, an electric appliance driving device, a composite spring vibration absorber and an automatic reciprocating traveling device of the vibration sieve whole body. The vibration sieve body is provided with an upper sieving plate and a lower sieving plate; two sides of the vibration sieve body are provided with an eccentric vibrator respectively; the vibration sieve body is arranged on the composite spring vibration absorber which is arranged on a traveling crane frame; the electric appliance driving device consists of an explosion-proof electric machine and a flexible coupler; the explosion-proof electric machine is connected with the eccentric vibrator through the flexible coupler; and the automatic reciprocating device of the vibration sieve whole body comprises the traveling crane frame, a traveling motor, a speed reducer driving device and steel rails, wherein the traveling crane frame is positioned on the steel rails, and the traveling motor and the speed reducer driving device are arranged on the traveling crane frame. The vibration sieve can effectively separate water and coal in water coal. After being dehydrated, free water content in the coal is reduced to less than 10 percent from 20 to 25 percent, so that threat of water coal to safety and production of the mines is eliminated.

Description

technical field [0001] The invention relates to an underground water-coal separation and dehydration vibrating screen, which belongs to the technical field of underground coal mine conveying equipment. Background technique: [0002] Coal mining face in coal mines is often harmed by water coal. When the water gushing is large during the mining process, the mined coal mixes with the water gushing in the roof goaf to form water coal. During the transportation of water coal, when encountering inclined roadways such as going up and down the mountain, the water coal will slide up and down on the belt, making transportation difficult, and it is easy to silt up in the transportation roadway and the equipment in the transportation roadway, especially when pouring into the upper and lower coal bunkers. When it is too long, it is easy to cause warehouse collapse and flooding accidents, which pose a great threat to coal mine safety and production. Invention content: [0003] In order...

AI Technical Summary

Problems solved by technology

During the transportation of water coal, when encountering inclined roadways such as going up and down the mountain, the water coal will slide up and down on the belt, making transportation difficult, and it is easy to silt up in the transportation roadway and the equipment in the transportation roadway, especially when pouring into the upper and lower coal bunkers. When it is too late, it is prone to warehouse collapse and flooding accidents, which pose a great threat to coal mine safety and production

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