A mine wet dust collector

Abstract

A mining wet dust collector comprises an impeller and an impeller hub with one end fixed to a rotating shaft. The rear of the impeller is provided with a dehydrating barrel. A water collecting barrel is arranged between the impeller and the dehydrating barrel. A conical-cylinder-shaped water blocking sheet is arranged in the water collecting barrel. The impeller hub is of an H-shaped structure. The inner corners of the H-shaped structure are in the shape of an arc. A water supply pipe is arranged. A water outlet of the water supply pipe corresponds to the inner corner, close to one side of the rotating shaft, of the hub. The water collecting barrel comprises a positive pressure cavity and a constant pressure cavity. The water blocking sheet is arranged in the positive pressure cavity. The positive pressure cavity and the normal pressure cavity are separated through a front baffle which is provided with a constant pressure cavity hole. The mining wet dust collector has the advantages of being compact in structure, high in dust removing efficiency, small in the number of operating parts, small in maintenance quantity and stable and reliable in work state; the water supply pipe is directly connected with the mining wet dust collector without a spraying nozzle; the impeller hub is used for atomizing water flow instead of blades; the requirement for water quality is low, and sewage can also be cyclically used; centrifugal force of the impeller hub is used for atomizing the water flow, and dust in air is directly hit and prevented.

Description

technical field [0001] The invention relates to the field of dust removal for coal mine underground roadways, in particular to a novel mine wet dust collector. Background technique [0002] On the working face of the coal mine, during the mining operation of the fully mechanized excavator, coal and rocks are broken during the excavation, forming a large amount of dust. A large amount of dust will also be generated at the place where the coal is dropped by the coal shearer and the belt conveyor. The diffuse dust seriously threatens the health of coal miners. The incidence of pneumoconiosis is significantly higher than other industries, and the working conditions are still very severe. In a narrow roadway, the dust removal equipment is required to be small in size, with a large processing air volume and a small maintenance workload. [0003] Dry dust collection is only suitable for roadways or rock roadways with extremely low gas content, so wet dust collectors are still req...

AI Technical Summary

Problems solved by technology

The wet dust collector in the prior art usually sprays atomized water into the air duct of the dust collector to moisten the dust in the dusty airflow and then remove it through the filter screen. The spray nozzle is easy to cause clogging

At the same time, due to the complex geological conditions in coal mines, the dust contains coal dust, rock powder, soil, wood chips, rust, etc., and the filter screen for filtering dust is also easy to block.

In addition, the dust removal fan in the prior art adopts a negative pressure dust removal structure, which leads to poor water flow in the fan and poor dust removal efficiency.

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