Differential pressure mining dust removing agent automatic adding device

Abstract

The invention particularly relates to a differential pressure mining dust removing agent automatic adding device and solves problems of high energy consumption, complicated structure and high fault rate in terms of existing dust removing devices. A filtrate net and a valve body integrated box are arranged at the bottom inside a liquid storing tank, a vent valve, a liquid adding opening and a pressure ventilation pipe are arranged at the top of the liquid storing tank, a liquid bag is disposed inside an agent adding box, a water inlet pipe is disposed at one end of a jet flow negative pressure pipe, an impeller stirrer is mounted at the other end of the jet flow negative pressure pipe, a flow guide water pipe is arranged between the valve body integrated box and a liquid inlet of the liquid bag, a single-way throttling valve and a back pressure valve are disposed on the flow guide water pipe, an agent adding pipe is disposed between a liquid outlet of the liquid bag and the side wall of the jet flow negative pressure pipe, a flowmeter and a proportional valve are disposed on the agent adding pipe, a side pressure water inlet pipe is disposed between the agent adding box and the jet flow negative pressure pipe, and a water inlet control valve is disposed on the side pressure water inlet pipe. According to the differential pressure mining dust removing agent automatic adding device, automatic adding of an agent is achieved, dust concentration on an excavation surface is effectively lowered, and working environment of an excavation work face is greatly improved.

Description

technical field [0001] The invention relates to a coal mine dust-reducing device, in particular to a pressure-difference type mine dust-reducing agent automatic adding device. Background technique [0002] The coal dust produced in the process of coal mining not only affects the underground working environment, but also seriously threatens the health of workers. [0003] At present, wet dust removal is mainly used in coal dust control, and spray dust suppression is particularly widely used. However, due to the general hydrophobicity of coal dust, in order to increase the wettability of coal dust and improve the efficiency of dust suppression, studies have shown that the use of solutions added with dust suppression agents for spraying It can effectively improve the dust suppression efficiency. [0004] However, the existing method of adding dust-reducing agent to the dust-reducing water pipeline mainly relies on external power sources such as motors or hydraulic pumps, which...

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Problems solved by technology

[0005] In order to solve the problems of high energy consumption, complex structure and high failure rate in the existing dust suppression device, the present invention prov

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