Ventilation device for confined space in mine

Abstract

A ventilation device for a confined space in a mine, comprising an air inlet pipe and an air exhaust pipe, one end of the air inlet pipe and the air exhaust pipe is installed into an underground air duct, and the ends are respectively equipped with an air inlet chamber and an air outlet chamber; The other ends of the air duct and the exhaust duct are respectively installed in the ventilation area, and an exhaust air bin is installed on one end of the exhaust duct into the ventilation area; The wind fan, the air intake fan and the exhaust fan are respectively used to form air convection in the air intake duct and the exhaust duct; the upper ends of the air intake bin, the exhaust bin, and the exhaust bin are separated by grids. The ventilation area is also equipped with a water washing device, and a dust removal device is installed on the air inlet pipe. The brushing mechanism realizes the scrubbing and dredging of the grid, the first dust removal net and the second dust removal net.

Description

technical field [0001] The invention relates to ventilating equipment for underground mines and tunnels, in particular to a ventilating device for confined spaces in mines. Background technique [0002] In the design of underground ventilation, although there are dedicated air ducts for ventilation, this design can solve the ventilation problems of most roadways. However, for some newly developed mining areas and emergency refuge areas, due to the untimely layout of facilities or the design of refuge spaces, the ventilation in these areas will be seriously delayed or even not ventilated. However, there are many harmful gases in the underground, such as carbon monoxide, methane, sulfur dioxide, etc., and there are more germs. Therefore, in order to ensure the air circulation in this area, it is generally necessary to install a ventilation device for the confined space of the mine. Its principle is mainly to connect the air duct with this area through a ventilation fan or an ...

AI Technical Summary

Problems solved by technology

[0003] However, this type of ventilation device for confined spaces in mines generally only simply reverses the air flow, and the underground dust, dust, etc. are relatively large, especially in the air duct, whose wind force can blow up small stones, so solid debris blocks the ventilation pipeline is commonplace

In order to ensure the normal operation of ventilation devices for confined spaces in mines, it is generally necessary to regularly overhaul the air ducts, and because the ducts are easy to block, the frequency of overhauls has to be relatively high, sometimes more than three times a week

This obviously greatly increases manpower input, and it needs to be shut down during the maintenance process. Once shut down, the ventilation area must be shut down, which has a great impact on the mining progress

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