Water vapor rotating jet dust settling device for comprehensive driving working face

Abstract

The invention discloses a water vapor rotating jet dust settling device for a comprehensive driving working face, and belongs to the technical field of comprehensive driving working face dust settling and removing equipment. The dust of the comprehensive driving working face is reduced by combined action of a rotating jet air suction type spray device, a secondary rotating compressed air water jet dust absorption and removal device and a rotational flow air supply dust control device; and the rotating jet air suction type spray device sprays water to a roller cutting point and a shipping point. The pressure water of a water pipe becomes fog of finer fog drops and is sprayed to a dust production area so as to reduce the dust produced by a development machine during cutting coal, suck the nearby air and form a cyclone water vapor curtain mask; and the secondary rotating compressed air water jet dust absorption and removal device and a negative pressure air cylinder remove the dust whichis sucked into the rotating jet air suction type spray device by means of compressed air and spray of high pressure water in a venturi tube and is not caught, and the distance between the negative pressure air cylinder and a driving head is 2 to 5 meters.

Description

A water-air rotating jet dust suppression device for fully mechanized excavation working face technical field The invention belongs to the technical field of dust reduction and dust removal equipment for fully mechanized excavation working faces. Background technique The fully mechanized excavation face is one of the sources of high dust in coal mines. Effectively reducing the dust concentration of coal cut by roadheaders is of great significance to the safety of coal mine production and the health of workers. In order to reduce the dust concentration of fully mechanized excavation work and effectively prevent the dust generated by the coal cutting of the roadheader, the dust prevention measures for the machine face at home and abroad mainly include spraying inside and outside the roadheader, using dust collectors, and adopting pull-out or push-in-pull combined ventilation. Methods, personal protection, etc. In recent years, related research has been carried out on the fo...

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Problems solved by technology

It should be said that the above-mentioned studies have played a certain role in reducing the dust generated by the roadheader. However, due to various reasons, the above-mentioned technologies have not been widely used.

In actual use, there are still some problems with the internal and external spraying: one is that the nozzles arranged on the drum are partially or completely buried in the coal when the drum is cut, so that the sprayed jet cannot be atomiz

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