A step atomization partition dust removal system for fully mechanized excavation face

Abstract

The invention discloses a dust removal system of a stepped atomization sub-region of a fully mechanized excavation face. The dust removal system comprises a jet atomization dust suppression module, an air atomization dust fall module and a dynamic pressure atomization dust isolation module. The jet atomization dust suppression module comprises a booster pump, a high-pressure water pipe, a dust depressor automatic adding device, a dust depressor solution conveying pipe and a negative pressure secondary atomization dust suppression device which are sequentially connected. A liquid sucking pipe of the dust depressor automatic adding device is communicated with a dust depressor container. The air atomization dust fall module comprises an air atomization dust fall device connected with a pressure ventilation pipe and a static pressure water pipe. The dynamic pressure atomization dust isolation module comprises a fastening device and an L-shaped dust isolation fog screen generator connected with the dynamic pressure water pipe. The dust suppression of a cutting breakage region source, the dust fall as soon as possible of the head-on return air side of the fully mechanized excavation face and the timely dust isolation of a full cross section are realized, the new technical device is provided for high-efficiency and low-cost dust treatment of the fully mechanized excavation face, and the system has wide applicability.

Description

technical field [0001] The invention relates to a dust removal system for a tunneling face, in particular to a step atomization partition dust removal system for a comprehensive mechanized tunneling face. Background technique [0002] The fully mechanized excavation working face is one of the largest dust-producing places in the underground of coal mines, and it is also the largest dust-producing point in tunnel construction in transportation, construction and other industries. The dust concentration generated during the operation of the roadheader is very high, which not only induces pneumoconiosis among workers, but also may cause Coal dust explosion poses a great threat to the health of underground front-line operators and the safe production of enterprises. It is of great significance to prevent and control the hazards of flour dust in comprehensive excavation work. [0003] At present, the dust control technologies commonly used in fully mechanized excavation working f...

AI Technical Summary

Problems solved by technology

The nozzles of the spray system in the fully mechanized excavator are easy to clog, and the sealing problem of the high-pressure water supply pipeline inside the excavator body has been difficult to solve, so that the internal spray is basically abandoned; the existing external spray device cannot focus on the dust source cut by the excavator Enveloped spraying results in poor dust suppression effect, and often tries to improve the atomization effect with high water consumption, which can easily cause water in the working area, deteriorate the working environment of the excavation surface, and affect the excavation efficiency

The dust removal fan adopts the extraction fan, which is severely restricted in the application of high-gas mines and coal and gas outburst mines, and its volume and weight are large, and its installation and use in small and medium-sized section tunnels are limited.

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