Liquid addition and atomization device for mine nitrogen-filling process

A liquid addition and atomization device technology, applied in safety devices, mining equipment, earthwork drilling and mining, etc., can solve problems such as liquid addition and atomization that are difficult to meet, achieve wide practicability, reduce excessive resistance, and move flexibly Effect

Active Publication Date: 2014-11-19
CHINA UNIV OF MINING & TECH
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AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defect that the existing atomization device is difficult to meet the liquid addition and atomization in the process of nitrogen injection in coal mines, the present invention provides a liquid addition and atomization device in the process of nitrogen injection in mines. Efficient liquid addition and atomization

Method used

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  • Liquid addition and atomization device for mine nitrogen-filling process
  • Liquid addition and atomization device for mine nitrogen-filling process
  • Liquid addition and atomization device for mine nitrogen-filling process

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Embodiment Construction

[0013] exist figure 1 Among them, a diversion atomizer 2 is provided at the front end of the cylinder body 1, a tapered air guide channel 4 is provided inside the diversion atomizer 2, and a bypass channel 5 is provided between the outside of the diversion atomizer 2 and the cylinder body 1 , the side of the diversion atomizer 2 is provided with a liquid inlet channel 6, and the liquid inlet channel 6 is connected to the liquid guide groove 7; the rear end of the cylinder 1 is provided with a Venturi mixer 3, and the jet port 8 of the diversion atomizer 2 is facing Mixing channel 9 of Venturi mixer 3.

[0014] The air guiding channel 4 is provided with 2~6 liquid guiding grooves 7, the liquid guiding grooves 7 are arranged in a spiral shape and each liquid guiding groove 7 has the same spiral direction, the liquid guiding grooves 7 are recessed on the inner wall of the air guiding channel 4 and the section is from Then it gradually decreases until it disappears.

[0015] Wor...

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Abstract

The invention discloses a liquid addition and atomization device for a mine nitrogen-filling process. A flow-guide atomization device is arranged at the front end of a barrel body of the liquid addition and atomization device. A reducing gas-guide channel is reserved in the interior of the flow-guide atomization device. A bypass channel is arranged between the exterior of the flow-guide atomization device and the barrel body. A flow inlet channel is arranged on a lateral side of the flow-guide atomization device, and is communicated with a liquid-guide groove. A Venturi mixer is arranged at the rear end of the barrel body; and an injection orifice of the flow-guide atomization device is opposite to a mixture channel of the Venturi mixer. The liquid addition and atomization device is simple in structure, large in atomization amount, small in occupied space, flexible in movement, convenient to assemble, capable of effectively preventing blocking and working continuously, suitable for viscous liquid, free of electric elements, safe, reliable, and wide in practicability, is applicable to fire preventing and suppression in gob area of a mine or a closed space, and especially is applicable to adding fire-proof inhibitor solution in a mine nitrogen-filling process for fire preventing and suppression.

Description

technical field [0001] The invention relates to a device for liquid addition and atomization in the process of injecting nitrogen into coal mines to prevent and extinguish fires. Background technique [0002] Mine fires pose a great threat to coal mine safety production. In order to control mine fires, nitrogen fire prevention and extinguishing technology is widely used at home and abroad. The good inerting and suffocating effect of nitrogen has achieved many successful examples in inhibiting coal spontaneous combustion and fire control. However, nitrogen injection for preventing and extinguishing fires also has disadvantages. The first is that the cooling effect of nitrogen is poor, and it is easy to recombust. Additives such as water and chemical resistance fluid are used in the nitrogen injection process to achieve more ideal fire prevention and extinguishing effects such as cooling and chemical resistance. ZL201010243627.1 discloses a mine-used nitrogen fine water mis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F5/00
Inventor 周福宝李建龙史波波肖翔李敬张旭
Owner CHINA UNIV OF MINING & TECH
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