Supersonic speed dry-wet combined spiral bladeless dust collection and removal system and dust removal method thereof

Abstract

The invention relates to a supersonic speed dry-wet combined spiral bladeless dust collection and removal system. The supersonic speed dry-wet combined spiral bladeless dust collection and removal system comprises an outer shell, a Laval supersonic speed airflow generation device, an airflow reversal acceleration device, an inner shell and a spiral airflow generation device, and an internal thread hole is formed in the joint of the outer shell and the first end of the inner shell so that the Laval supersonic speed airflow generation device can be arranged; the interior of the cylindrical section of the joint of a second end is connected with the airflow reversal acceleration device, the internal threaded hole serves as a first air inlet, an air outlet of the airflow reversal acceleration device serves as a first air outlet, and the spiral airflow generation device is located at the joint of the outer shell and the second end of the inner shell and connected with the first air outlet, and a dust removal method is provided. Accroding to the supersonic speed dry-wet combined spiral bladeless dust collection and removal system and the dust removal method thereof, by utilizing a Laval supersonic speed negative pressure dust collection technology, dust escaping from a coal mine transfer point can be effectively captured, the whole structure is simple, the dust can be removed after dust collection, the operation is safe, the efficiency is high, and the supersonic speed dry-wet combined spiral bladeless dust collection and removal system and the dust removal method thereof is more suitable for coal mines.

Description

technical field [0001] The invention belongs to the dust removal technology, in particular to a supersonic dry-wet combined spiral bladeless dust collection and dust removal system and a dust removal method applied in coal mines. Background technique [0002] With the rapid development of coal mine production technology, the transportation tasks undertaken by the belt conveyor lane in the mine are becoming heavier and heavier, and the dust production of the reloading system of the belt conveyor lane is also increasing, resulting in serious dust pollution in the belt conveyor lane. In the case of no dust removal measures, the dust mass concentration of the belt transportation lane can reach 200 to 300 mg per cubic meter, and the dust concentration can still reach 60 to 120 mg when wet dust removal is used. Obviously, the dust concentration of the belt transportation lane is much higher than the requirement at this time standard. [0003] In the existing technical field, the ...

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Problems solved by technology

[0003] In the existing technical field, the dust removal method of the belt transportation lane is mainly based on spray dust reduction, and is equipped with the installation of a hood to assist dust reduction. However, this dust removal method still has many shortcomings, such as the inability to effectively capture respirable dust, atomization The device is fragile, the dust removal device is prone to blockage and other problems, and the amount of fog generated by the atomization device is too large, which will not only cause the belt to slip, but also cause problems such as water accumulation in the roadway, which will reduce the quality of coal and reduce the efficiency of the coal mine

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