Mining bubble atomization water mist dust settling device

Abstract

The invention discloses a mining bubble atomization water mist dust settling device. On the basis of traditional water mist dust settling of a mine, the mine atomizing dust settling device which is good in atomizing effect, high in dust settling rate, low in water consumption and air consumption, not prone to nozzle blockage, convenient to install, capable of saving energy and environmentally friendly is designed according to the bubble atomization principle. The mining bubble atomization water mist dust settling device is mainly characterized in that by means of an existing underground dustproof pipeline and a compressed air pipeline, a water source and an air source do not need to be pressurized, and no strict requirement for the size relationship of water pressure and air pressure exits; on the basis of not conducting any changing or adding auxiliary devices, water mist good in atomizing effect is produced, dust settling effect is greatly improved, and remarkable effect can be achieved for preventing and treating respirable dust; meanwhile, plenty of water sources is saved, and underground working conditions are effectively improved; when dust settling is conducted in places such as coal faces and driving faces with large gas gushing amount, part of air carried in the water mist can have an effect on diluting gas and preventing local gas from exceeding the limit to a certain extent.

Description

technical field [0001] The invention belongs to the field of water mist dust suppression in mines, and in particular relates to a mine air bubble atomization fine water mist dust suppression device. Background technique [0002] Mine dust disaster is one of the five major disasters in mines, which seriously threatens the safe production of coal mines and the physical and mental health of miners. On the one hand, it not only pollutes underground workplaces, reduces air visibility, and easily causes industrial accidents, but also miners who inhale coal dust for a long time will cause coal lung disease. my country's coal mine dust is seriously harmful, and the incidence of pneumoconiosis is high, which not only directly damages underground workers It also causes a large amount of dust to enter the atmosphere with the mine exhaust, causing environmental pollution. On the other hand, it can accelerate the wear and tear of machinery, and can explode under certain conditions, causi...

AI Technical Summary

Problems solved by technology

Invention patent CN101260811A discloses a deep well high-pressure water mist dust reduction method and device. This invention utilizes high-pressure surface water introduced from the ground during deep well mining to generate high-pressure fine water mist. The above mines can only be implemented, and the effect is difficult to guarantee; in the article "Experimental Research on the Atomization Characteristics and Dust Reduction Effect of Underground Coal Mine High Pressure Spray", the atomization characteristics and dust reduction effect of the spiral pressure nozzles commonly used in underground mines under different pressures are analyzed. Systematic experimental research has been carried out. Although high-pressure water mist has a good dust reduction effect, the pressure of the water needs to reach 8-10Mpa, and the supporting equipment needs to meet higher quality requirements.

The main disadvantages of the above-mentioned single-fluid high-pressure atomization method are: high working pressure is required (the water pressure for producing first-grade fine water mist is greater than 10Mpa), which greatly increases the cost of the system, and the outlet diameter of the nozzle is small (generally Less than 1mm), easy to block, high requirements on water quality

Invention patent CN103133000A discloses a gas-water mixing external spraying system for a coal shearer. This invention includes a water supply system for providing pressurized water and an air supply system for providing pressurized gas. Fine water mist is generated through the collision and tearing of gas to reduce dust, but The design of the whole system is too complicated, the air consumption is large, and the practical feasibility is not high; the invention patent CN102373942B authorizes an air curtain and fine water mist linkage equipment for preventing and controlling dust in fully mechanized excavation work. The invention is realized through the linkage of underground water and compressed air The atomization of water achieves the purpose of effective dust reduction, but there are also defects such as complex system equipment, difficult installation and use, and excessive air consumption

The application of traditional two-fluid atomization dust suppression technology in coal mines mainly has the defects of complex system structure and large gas consumption

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