High pressure dust removing and external spraying system of tunneling machine

Abstract

The invention discloses a high pressure dust removing and external spraying system of a tunneling machine. The high pressure dust removing and external spraying system comprises a high pressure waterpump and a motor which are connected. A filtering machine is connected to a water inlet of the high pressure water pump. A water inlet of the filtering machine is connected with one end of a water inlet pipe. A pressure switch and a decompressing valve are sequentially arranged at the position, close to the water inlet of the filtering machine, of the water inlet pipe. The decompressing valve is connected with a pipe connector. The pressure switch is sequentially connected with an intrinsic safety connecting box and a flameproof start-up switch. The flameproof start-up switch is connected withthe high pressure water pump and the motor separately. A water outlet of the high pressure water pump is connected with one end of a water outlet pipe. The other end of the water outlet pipe is connected with two spraying modules. A safety valve is arranged at the water outlet pipe. The safety valve and the high pressure water pump are connected with a pressure meter. Water mist is sprayed in a mist mode, and therefore main dust producing points of the tunneling machine can be effectively covered to spray water mist and reduce dust.

Description

technical field [0001] The invention belongs to the technical field of spray dust suppression devices, and relates to a high-pressure dust suppression external spray system for roadheaders. Background technique [0002] During the construction of the coal mine underground roadheader, a large amount of dust will be generated at the cutting head. Some roadheader manufacturers will connect the cooling water of the fuselage system to the cutting head for reuse, but it is only normal pressure water spray, and the dust reduction efficiency is very low. micro. Later, the spray dust reduction method was gradually adopted, combined with the special dust reduction module, which can effectively reduce the dust concentration of excavation work flour and greatly improve the atomization effect. However, due to the harsh underground environment, coal collapses from time to time will cause nozzle blockage or poor water supply in the water supply pipeline, etc., and there is a shortage of u...

AI Technical Summary

Problems solved by technology

However, due to the harsh underground environment, coal collapses from time to time will cause nozzle blockage or poor water supply in the water supply pipeline, etc., and there is a shortage of underground maintenance personnel, and the driver of the roadheader has no time to take care of it. May malfunction or even burn out

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