Electric addition-type filled pore foaming device and foaming method for mine dust removal

Abstract

The invention discloses an electric addition-type filled pore foaming device and a foaming method for mine dust removal. A bell-mouthed liquid outlet pipe is arranged at the other end of a first barrel; the bell-mouthed liquid outlet pipe is communicated with a second barrel; the middle part of the second barrel is uniformly filled with a plurality of glass balls to form a glass ball filled pore foaming section; a foam outlet is formed in the tail end of the second barrel; the second barrel in front of the glass ball filled pore foaming section is a primary foaming section; the bell-mouthed liquid outlet pipe is arranged inside the primary foaming section; a plurality of airflow inlets are formed in positions, corresponding to the primary foaming section, of the second barrel. A foam solution after primary foaming is secondarily foamed through the glass ball filled pore foaming section under the action of an airflow to generate a large amount of foam, and the foam is discharged througha foam discharging pipe and is finally sprayed out from a foam nozzle to cover a dust source so as to achieve a dust reducing effect; under the same condition, the yield of the foam is greatly increased, which is 10% higher than that of the conventional foam generating device.

Description

technical field [0001] The invention relates to a foam generating device for dust removal in mines, in particular to an electric additive type pore-filling foaming device and foaming method for dust removal in mines. Background technique [0002] my country is a country rich in coal, short of oil, and low in gas. Coal has always been an important basic energy source in our country and plays an irreplaceable role in the development of the national economy. In recent years, the depth of coal mining has continued to increase, and the level of mechanized and automated mining has gradually increased. The subsequent natural disasters in mine production have also become more prominent, especially the dust hazards in underground operating areas have seriously threatened the safety of mine production and the physical and mental health of miners. healthy. The hazards of high-concentration dust at the coal mining operation site mainly include the following three points: (1) lead to co...

AI Technical Summary

Problems solved by technology

Among them, the method of adding foam dedusting agent solution is the most commonly used method of adding Venturi tube negative pressure. The downhole water pressure is greatly affected by multiple factors, which leads to the instability of the negative pressure generated by the Venturi tube, and finally leads to the unstable addition of the foam dust removal agent solution. Therefore, it is difficult to ensure stable generation when using the Venturi tube bubble effect

[0005] Foam generating devices commonly used at home and abroad mainly have two structures: net type and turbulence type. It is difficult to ensure that the foaming liquid is evenly dispersed on the net surface when the net type foamer is implemented. At the same time, the foam is easily deformed by the wind flow , the foam stability is very poor and the problem of insufficient power is less used

However, the current turbulent foam generating devices generally have problems such as poor stability, large energy loss, and difficult maintenance, which greatly reduces the practicability of this type of foam generating device

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