Dual-fluid magnetization foam dustfall system and method

Abstract

The invention relates to a dual-fluid magnetization foam dustfall system and method, and belongs to dustfall systems and methods for a coal mine. The dustfall system comprises a liquid pipeline and an air pipeline with certain pressure, wherein the liquid pipeline is composed of foaming liquid, and the air pipeline is composed of a pressure ventilation pipe under the shaft. The air pipeline is connected to a magnetization foaming device for foaming, the other pipeline is connected to a dual-fluid foam nozzle and used for spraying foam. The magnetization foaming device comprises a turbulent flow pipe and a shell. The turbulent flow pipe comprises a solution medium cavity, a medium mixing cavity and a communication hole in the flowing direction of a medium, and the solution medium cavity is communicated with the medium mixing cavity through the communication hole. The outer wall of the solution medium cavity of the turbulent flow pipe is wound by magnetic tubes or magnetized metal tubes, and a circle of magnets are arranged in the shell. Hemispheric spoilers provided with turbulent flow holes are evenly distributed in the outlet end of the medium mixing cavity. According to the dual-fluid magnetization foam dustfall method, the dustfall capacity of foam is improved through foam magnetization, and the jetting effect of the foam is improved by using the dual-fluid foam nozzle, so that dustfall efficiency is improved.

Description

technical field [0001] The invention relates to a coal mine dust suppression system and method, in particular to a two-fluid magnetized foam dust suppression system and method. Background technique [0002] Coal mine dust refers to various rock ore particles produced during the construction and production of coal mines. The harm of coal mine dust is mainly manifested in two aspects: one is the harm to the human body. After long-term inhalation of mine dust, workers may suffer from respiratory inflammation in mild cases, and pneumoconiosis in severe cases. The number of disabled and injured miners caused by pneumoconiosis is very alarming both at home and abroad. All countries in the world are actively carrying out the work of preventing and treating pneumoconiosis. Another hazard of coal mine dust is combustion and explosion. Such as: coal dust, which can explode in the absence of gas and cause considerable harm. For gas mines, gas and coal dust explosion accidents may oc...

AI Technical Summary

Problems solved by technology

Such as: coal dust, which can explode in the absence of gas and cause considerable harm. For gas mines, gas and coal dust explosion accidents may occur at the same time, causing greater casualties and property losses

In addition, coal dust dust can also accelerate the wear and tear of machinery, reduce the precision and time of use of precision instruments, and at the same time reduce the visibility of the work site and bring hidden dangers to safe production

[0003] At present, there have been a lot of research and practice on mine dust control technology at home and abroad. Although a certain dust reduction effect has been achieved, there is still a lot of room for improvement in efficiency, and there are many imperfections, especially in the practical effect. In terms of better hydraulic dust removal technology, there is still a lot of room for improvement and development

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