SU1740686A1 - Method for preventing coal dust contamination of mine air - Google Patents

Abstract

Usage: coal industry, dust removal of air supplied to the mine through a single skip-trunk trunk. Above the place of loading skips and from the side opposite to the place of loading skips at a height not less than the diameter of the trunk section, additional development is carried out. A partition is installed in the barrel to separate the skip and cage compartments. One part of the fresh air is diverted through an auxiliary outlet to the peri-barreled yard, and the other part of the air is directed to the cage compartment of the trunk. 2 Il.

Description

The invention relates to the coal industry and is aimed at improving the reliability of dedusting of fresh air supplied to the mine through a single skip-stand trunk, as well as on expanding the field of use of the skip-cut log trunks by using them with blow-free options for supplying fresh air over it.

A known method for dedusting air entering the near-barrel yards of skip-flit shafts consists in removing dusting places, respectively: in the sump part of the barrel with dust air being led to the outgoing jet or dedusting and in the scrap part of the skip complex, above the day surface, from where fresh air is supplied to the mine.

The disadvantage of this method is the impossibility of using soundless vertical trunks as single squared trunks, i.e. with the performance of the functions of gruzolyudskih trunks and the flow of fresh air through them into the mine.

The use of a dummy-free scheme for a single skip-stand is eliminated due to the incompatibility of the necessary technological operations for coal delivery, descent, lifting of people and materials, and supplying fresh air to the mine, as pollution of fresh air with coal dust above sanitary standards occurs.

The use of boreless shafts reduces significant capital costs compared to sump, but without a suspension method of preventing coal dust pollution of mine air supplied through the trunk, in which skips are loaded above the level of the near-barrel yard, it cannot be used as a single skipclotle trunk.

The purpose of the invention is to improve the reliability of preventing the pollution of the mine air when loading skips above the working horizon and at the same time allowing you to repair.

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chi mineral with fresh air supply to the mine.

The goal is achieved by the fact that, above the loading point of the skips and from the side opposite to the loading point of the skips, an auxiliary excavation connecting the barrel to the near-barrel yard is installed at a height of not less than the diameter of the trunk section, and a partition is installed in the shaft shaft to separate the skip and cage compartments , to a height from the lower level of the shaft shaft to the base of the auxiliary excavation.

At the same time, one part of the fresh air supplied through the shaft shaft is diverted through an auxiliary output into the near-barrel yard, and the other part of the air is directed to the stand section of the trunk.

Fig. I shows a flow chart of a single, soundless skip-fly trunk; FIG. 2 is a section A-A in FIG. one.

Position 1 in the drawing denotes auxiliary generation, in which fresh air is removed. The trunk compartment of the trunk 2 is fenced off from the skip compartment 3 by a continuous partition 4 to the height from the lower mark of the trunk 5 to the level of the base of the excavation. Through the chamber 6 of the feeder, the air is sucked off by a fan or due to a general depression, into a general mine outgoing air stream.

The proposed method is as follows.

A stream of fresh air is fed into the mine through a single skip-squat barrel, which does not have a sump part when loading skips above the working horizon. Most of the fresh air flow is diverted from the trunk to the near-barrel yard through auxiliary generation 1, which is cut above the loading point of the skips by an amount not less than the diameter of the trunk section. The rest of the air is directed to the cage compartment, fenced off from the skip compartment 3 by a solid partition 4, and the partition is constructed from the lower mark of the trunk 5 to the level of the production base, thereby eliminating the turbulence of the dusty air and entering it in a fresh stream.

The dusty part of the air that enters the skip loading sector from fresh

jets are sucked off through the feeder chamber by a fan or due to a general depression in the outgoing (spent) stream of air. The dusty air is cleaned with a dust collector.

The proposed method makes it possible to expand the use of single skip-squatter trunks for the opening and development of deposits with a progressive scheme for the construction of a near-wellbore yard.

in two levels, and also allows, without violating the safety rules, to design and build single, soundless vertical shafts on the industrial sites of the mines for normal mining of the mine floor, i.e. to build one barrel instead of two designed by standards.

Claims (1)

Claim Prevention Method coal dust of mine air, which includes the supply of fresh air to the mine through the skip-flytyle trunk, the trapping of dusty air and its withdrawal, characterized in that, in order to increase reliability of preventing the pollution of mine air when loading skips above the working horizon and simultaneously issuing minerals with the supply of fresh air into the mine, above the loading point skips and from the side opposite to the loading point of the skips at a height not less than the diameter of the trunk section, an auxiliary excavation connecting the trunk with the near-ballistic yard is carried out, and a partition is installed in the shaft shaft to separate the skip and cage compartments from the lower level of the shaft shaft to the base auxiliary production, with one part of fresh air supplied through the shaft shaft being diverted through an auxiliary production into the near-barrel yard, and the other part of the air is directed to e branch of the trunk. Fresh stream / Fig 1 8 oeufe & fovrftwyto