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Conical double-sandwich type foam generating device

A foam generating device and double-interlayer technology, applied in safety devices, mining equipment, earthwork drilling, etc., can solve the problems that the dust removal device cannot meet the production requirements of the mine, there are many power facilities, and the dust removal efficiency is low, and the foam generation rate can be achieved. control, wide coverage, easy maintenance and operation

Active Publication Date: 2017-05-31
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing dust removal device cannot meet the production requirements of the mine, the dust removal efficiency is low, and there are many power facilities in the working process, the cost is high, and it is very inconvenient to use

Method used

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  • Conical double-sandwich type foam generating device
  • Conical double-sandwich type foam generating device

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Embodiment Construction

[0018] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0019] Such as figure 1 , figure 2 As shown, a cone-shaped double sandwich foam generating device includes a cone-shaped shell, the cone-shaped shell is made of metal material, a foam outlet 1 is provided at the front end of the cone-shaped shell, and the rear end of the cone-shaped shell For a closed structure, two interlayers are arranged in the cone-shaped shell, and a gap is left between the two interlayers. The gap is communicated with the foam outlet 1, and a screen 2 is provided in the gap. The screen 2 adopts wave The two interlayers are cone-shaped, the inner layer is a water-collecting layer 4, and the outer layer is a gas-collecting layer 3. A number of water outlet holes are evenly arranged on the outer side of the water-collecting layer 4, in the gas-collecting layer A number of air outlets are evenly arranged on the inside of 3; the fir...

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Abstract

The invention discloses a conical double-sandwich type foam generating device, and belongs to the technical field of downhole dust prevention and control for coal mines. The conical double-sandwich type foam generating device comprises a conical shell. A foam outlet is formed in the front end of the conical shell, a closed structure is arranged at the rear end of the conical shell, two sandwich layers are arranged in the conical shell, gaps are reserved between the two sandwich layers and are communicated with the foam outlet, and screen cloth is arranged in the gaps; the inner sandwich layer is a water collecting layer, the outer sandwich layer is a gas collecting layer, a plurality of water outlet holes are formed in the outer side of the water collecting layer, and a plurality of gas outlet holes are formed in the inner side of the gas collecting layer; a first gas pump is communicated with the gas collecting layer of the conical shell via a first gas flow meter, and a second gas pump is communicated with the foam outlet via a second gas flow meter; an inlet of a water pump is communicated with a mixing and stirring tank, and an outlet of the water pump is communicated with the water collecting layer of the conical shell via a liquid flow meter; the foam outlet is communicated with a foam spray nozzle via a foam transport pipe. The conical double-sandwich type foam generating device has the advantages of simple structure, convenience in assembling, disassembling and operating, flexibility in control and high safety and reliability.

Description

Technical field [0001] The invention belongs to the technical field of coal mine dust prevention and control, and in particular relates to a cone-shaped double-sandwich foam generating device, which is used for dust reduction and dust removal of flour dust in mine excavation. Background technique [0002] As we all know, a large amount of dust will be generated during the tunneling of a fully mechanized mine face, which will fill the entire tunneling face and roadway, especially when the tunneling machine is tunneling, it will spread to the entire work site; high concentrations of dust will reduce the visibility of the work site and cause damage The normal operation of machinery and equipment causes work hazards and seriously affects the health of workers. The Ministry of Environmental Protection and the Coal Mine Safety Supervision Bureau attach great importance to mine dust hazards, and have formulated relevant standards for dust concentration and emission concentration in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F5/00
CPCE21F5/00
Inventor 李雨成郑强刘蓉蒸王斌赵晓涛赵康梁嘉恒毕秋苹
Owner LIAONING TECHNICAL UNIVERSITY
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