High-efficiency dust removal method for driving face

Abstract

The invention discloses a high-efficiency dust removal method for a driving face. The method is characterized by comprising the following steps: (1), confirming the mounting positions of an air inlet barrel of the driving face, wherein the mounting positions comprise a height and an air barrel diameter; (2), mounting a dust removal fan at the upper part of a heading machine, connecting a power wire to equipment with a speed converter, and requiring the speed adjustment range of the speed converter to be 0.5-1.5 times the air inlet speed; (3), measuring the outlet air speed of the air inlet barrel; (4), controlling the dust removal fan to be started or stopped according to the working state of the heading machine; and (5), controlling the outlet air volume of the dust removal fan according to the inlet air volume. According to the method, the outlet air volume of the dust removal fan is controlled in real time according to the actual inlet air volume so as to achieve the purpose of best dust removal.

Description

technical field [0001] The invention relates to the field of coal mine safety production, in particular to an efficient dust removal method for a driving face. Background technique [0002] Mineral dust is one of the main disasters in coal mine production. The coal dust in the mine dust will explode under certain conditions, which will easily lead to serious accidents and bring huge disasters and losses to enterprises and the country; moreover, the mine dust will easily cause pneumoconiosis, which will seriously affect the personal safety and health of miners. come to serious harm. In recent years, with the improvement of the mechanization level of the excavation face, the dust disaster in the fully mechanized excavation face has become more and more serious. Therefore, it is of great significance to effectively control and reduce the dust concentration of fully mechanized excavation working faces and prevent coal dust accidents to promote mine safety production and protec...

AI Technical Summary

Problems solved by technology

The maximum allowable wind speed of the mining face and the tunneling coal roadway is 4m / s, which not only takes into account the ventilation requirements of the mining face, but also considers the secondary flying of dust; the dust removal fan is used to remove dust, and due to the limited air volume of the fan, when The air volume of the working surface is too large or too small, and the dust removal effect is not good

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