Reinforced dedusting device for coal min safety

Abstract

The invention discloses a reinforced dedusting device for coal mine safety. The reinforced dedusting device comprises a fan, a shell, an adsorption filtering part, a water vapor dedusting part, a bag-type dedusting part and a dust inlet, wherein the water vapor dedusting part, the bag-type dedusting part, the fan and the adsorption filtering part are sequentially arranged behind the dust inlet, the shell is located on the outer side of the whole dedusting device, dust particles of various particle sizes are eliminated in sequence, coal mine safety is guaranteed, and the working gas environment of coal mine workers is optimized.

Description

technical field [0001] The invention relates to the field of coal mine safety, in particular to an enhanced dust removal device for coal mine safety. Background technique [0002] The existence of dust in coal mines poses a huge hidden danger to coal mine safety. In order to meet the needs of coal mine safety, all coal mines that meet safety standards are equipped with dust removal devices to ensure coal mine safety. [0003] A large amount of dust is generated during the blasting, loading and transportation operations of underground mining in coal mines. These dusts will be discharged to the ground with the ventilation of the mine, and the particle concentration is as high as 800mg / m 3 Above, the ground environment is seriously polluted, causing the concentration of air pollutants to exceed the standard. At present, my country's current air pollutant comprehensive emission standard sets a maximum concentration limit of 150 mg / m for particulate matter. 3 , The concentr...

AI Technical Summary

Problems solved by technology

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

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