Pneumatic jet-type proportional foaming device

A foaming device, jet-type technology, applied in the direction of safety devices, mixers, mixing methods, etc., can solve the problems of insufficient foaming capacity, discontinuous addition, etc., and achieve the effect of simple operation, remarkable intrinsic safety and stable operation

Inactive Publication Date: 2014-03-12
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Technical problem: The purpose of this invention is to provide a pneumatic jet proportional foaming device for the problems of discontinuous addition and insufficient foaming capacity in the operation of foam dust suppression in coal mines

Method used

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  • Pneumatic jet-type proportional foaming device
  • Pneumatic jet-type proportional foaming device
  • Pneumatic jet-type proportional foaming device

Examples

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Embodiment Construction

[0022] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0023] Such as figure 1 As shown, the pneumatic jet type proportional foaming device of the present invention is mainly composed of a filter 3, a regulating valve 4, a proportional mixer 5, a foamer 6, a turbulence device 7, a suction hose 8, and a check valve 9 composition. The air inlet end of the foamer 6 is connected with a joint air pipe 1; the outlet end of the foamer 6 is connected with a turbulence device 7, and the liquid inlet of the foamer 6 is connected in parallel with the mixer 5 through a connecting pipe 10. The inlet end of the proportional mixer 5 is connected with a joint water pipe 2, the joint air pipe 1 and the joint water pipe 2 are respectively provided with a regulating valve 4, and the liquid suction port of the proportional mixer 5 is connected to the foaming box through a hose 8 , the hose 8 is provided with a check valve 9; the...

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Abstract

The invention discloses a pneumatic jet-type proportional foaming device, which comprises a proportional mixer and a foam generator, wherein an air inlet end of the foam generator is connected with a joint air pipe, and an outlet end of the foam generator is connected with a turbulator; a liquid inlet of the foam generator is connected in parallel with the mixer through a connection pipe; an inlet end of the proportional mixer is connected with a joint water pipe; the joint air pipe and the joint water pipe are respectively provided with a regulating valve; a liquid suction port of the proportional mixer is connected with a foaming box through a hose; and the hose is provided with a check valve. The pneumatic jet-type proportional foaming device disclosed by the invention fully utilizes the characteristics of large volume, good expansibility and high foaming capacity of compressed air flow; overcomes the critical defects of large differential pressure loss, insufficient backpressure recovery and poor drive of the proportional mixer by virtue of a pneumatic means, has the dual functions of proportionally mixing and adding as well as foaming, and is especially suitable to underground proportional addition for foam dust removal and high-performance foaming for a coal mine; and the foaming device is simple in structure, simple to operate, stable in running, and obvious in intrinsic safety.

Description

technical field [0001] The invention relates to a pneumatic jet-type proportional foaming device, which is especially suitable for the proportion addition of foam and dust reduction in coal mines and the application of high-performance foaming. Background technique [0002] At present, the key to restricting the development of foam dust suppression technology lies in the lack of stability of the device addition and foaming process, and it is difficult to determine the optimum working point. Therefore, it is necessary to reduce the pressure loss of the fluid in the device as much as possible, increase the back pressure at the outlet, and improve the The stability and efficiency of the foaming device. [0003] Patent No. 200920092287.X discloses a foam dust suppression device, the device includes a foam generator and a nozzle, the foam generator is the upper mixing section and the lower foaming section, the foam nozzle is a solid cone, which uses Fengshui as the source power, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F13/06B01F3/04E21F5/02
Inventor 王德明陆新晓王和堂胡方坤
Owner CHINA UNIV OF MINING & TECH
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