Underground coal mine ventilation and dust removal safety system

Abstract

The invention discloses an underground coal mine ventilation and dust removal safety system, which comprises two corrugated pipes and is characterized in that the two corrugated pipes are parallel and comprise a first corrugated pipe (1) and a second corrugated pipe (2) which are arranged at the two sides inside a mine respectively, and the two corrugated pipes are coated with self-illumination paint and extend to the bottom of the mine from the outer part of the mine respectively. The invention also discloses an integrated filtering and dust removal device. The ventilation and dust removal safety system can be used for removing dust particles in underground mine gas and timely ventilating and exchanging the underground mine gas, so that the safety of the mine is ensured, the working gaseous environment of coal mine workers is optimized, and the pollution of gas exhausted from the mine to the environment is avoided.

Description

technical field [0001] The invention relates to the field of coal mine safety, in particular to an underground ventilation and dust removal safety system for coal mines. Background technique [0002] At present, most underground mine ventilation devices use mechanical forced ventilation equipment. The disadvantage is that mechanical ventilation equipment is difficult to deal with harmful gas, gas and dust in the roadway. The reason is that it is blown out by the blower, the dust is large, and the harmful gas travels through the roadway. When the blower equipment is running, a large amount of heat, magnetic field and vibration are generated, forming a thermal barrier, so that the air outside the cave cannot enter the roadway smoothly, and the harmful gas in the roadway The dust and dust cannot be fully discharged out of the cave in time, which will affect the health of the workers, reduce the physical fitness of the miners, and reduce the production efficiency of the mine, po...

AI Technical Summary

Problems solved by technology

[0002] At present, most underground mine ventilation devices use mechanical forced ventilation equipment. The disadvantage is that mechanical ventilation equipment is difficult to deal with harmful gas, gas and dust in the roadway.

However, the processing air volume of wet dust removal is small, the atomization is not good, and the dust removal efficiency is not high

In addition, the water mist affects the line of sight, and the discharged sewage affects the construction and slag removal transportation

The electrostatic precipitator has ultra-high voltage static electricity, and it is dangerous to use in a humid tunnel construction environment, and it occupies a relatively large area.

Pulse-jet bag-type dust removal equipment generally uses cloth-bag filter bags as the filter material. Fog and dust are easy to accumulate on the surface of the filter bag and are not easy to peel off, causing the air permeability of the filter material to decrease. Cleaning is still not thorough enough

In addition, it is difficult to deal with the deflagration problem of electrostatic dust in the bag filter material in the environment containing electrostatic dust. For this reason, ordinary antistatic filter components are used for grounding in some places, but the entire surface of the filter cartridge is covered with conductive carbon black slurry, resulting in extreme dust particles. It is easy to adhere to the conductive carbon black slurry coating, which makes the filter blocked in a short time. The service life of the filter material is short, the air permeability is small, the pressure drop is large, and the filtering effect is average.

In addition, the moisture treatment contained in the dust and the pretreatment system for large particle dust were rarely considered in the design of industrial dust removal equipment in the past, which has great disadvantages under the action of large negative pressure

Images