SU1546671A1 - Method of cleaning mine air from dust - Google Patents

Description

The invention relates to the mining industry. The purpose of the invention is the improvement of sanitary and hygienic conditions in the dedusting zone by preventing the production of liquid droplets reflected from the sides from entering the area of movement of people and reducing entrainment by the ventilation flow of liquid droplets and mist. Dpya this

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in the opposite zone of movement of people, the production sideways parallel to its axis pass a niche 2, a partition 4 with gaps relative to the soil and roof is installed between niche 2 and generation. In niche 2, the distribution along its length is set by the nozzles 3 and connected to the pipeline for supplying liquid. When the nozzles 3 disperse the liquid through the gap between the upper edge of the partition 4 and the roof, a portion of the air is ejected from the dusty ventilation flow passing through the generation and enters into the niche '2. · The latter is cleaned from the dusty air and dust is deposited. Dust-free air is fed into the gap between the lower edge of the partition 4 and the soil and goes into the production, leading the main ventilating flow passing through it along a helical line. 3 il.

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The invention relates to the mining industry and can be used to clean the air from dust in the workings of mines and mines.

The purpose of the invention is to improve the sanitary and hygienic conditions in the dedusting zone by preventing the generation of reflected from the boards. liquid droplets in the area of movement of people and reduce entrainment by the ventilation flow of liquid droplets and fog.

Figure 1 presents the scheme of the method of cleaning mine air from dust; figure 2 - section aa in figure 1; in fig. 3 shows a section BB in FIG.

The method is as follows.

At the opposite for movement of people, the beams of the excavation 1 run parallel to its axis a niche 2 in which the nozzles 3 are placed. Retaining the flow area of the excavation, a partition 4 is installed between niche 2 and generation 1 with gaps at the top between the roof of the excavation and the upper part of the partition 5, and below - between the working soil and the lower part of the partition 6. Fluid supply to the nozzles 3 is carried out through the pipeline 7.

The liquid dispersed by the nozzles 3 under pressure has an ejection capacity, and at the outlet of the nozzles 3 in the upper zone of the torch the dispersed liquid has a high pressure and a large ejection capacity. Consequently, the air is ejected mainly by the upper part of the nozzle flare Zo. The gap between the roof of the excavation and the upper edge of the partition serves · to suck the dispersed liquid of the part passing through the generation of dusty main air stream 8 into the niche 2, dust is removed from the niche behind the partition 4 " air trapped in "liquid torches" according to the scheme: liquid droplets are combined with dust particles in the air and are deposited on the wall of the niche 2 and the partition 4, being washed off by the flowing liquid into the drainage 9 anavku recess communicating with a drainage groove 10. LARGEST produce liquid droplets with dust particles of

account of the inertial effect precipitated on the basis of a niche.

Dust-free air flow 11 leaves through the gap between the lower edge of the partitions 6 and the soil in the development and is directed to the ventilation of mining. Due to the aspiration of dusty air flow into the gap between the upper edge of the partition 5 and the roof and the injection of dust-free air flow through the gap between the lower edge of the partition 6 and the soil into the production 1, the main ventilation flow in the mine acquires movement along a helical line. Primer p. In the opposite direction of the movement of people, the bead of a section with a section of 3x3 m goes along its axis, I write with depth G, 0 m, length 30 m. In a niche 30 nozzles are placed with a step of 1.0 m ₀ the formation of gaps of 0.5 m at the top between the roof of the workings and the upper part of the partition, and below between the soil of the workings and the lower part of the partition,

The nozzles are supplied with water under a pressure of 1.0 MPa. The dusty air stream ejected by the dispersed water passing through the working enters the niche and is dedusted there. Further, the dedusted air flow is injected into the production under the action of dispersed water through the gap between the working soil and the lower part of the partition. Dust-free air moves along the output under the action of a dispersed liquid and a general depression or a fan depression along a helical line.

The method of cleaning mine air from dust compared to the prototype eliminates the ingress of liquid droplets reflected from the board to passing people, reduces the entrainment of liquid droplets from the dust particles captured by them by the main ventilation flow, increases the visibility in the mine by preventing the formation of mist in the output section in the area of the nozzles , thereby improves sanitary conditions in the dedusting area.

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Claims (1)

Claims method of cleaning mine air from dust, including the supply of dispersions five 1546671 with the distribution of installed nozzles, which means, in order to improve sanitary and hygienic conditions in the dedusting area by preventing the production of liquid droplets reflected from the sides. and reduce uno 6 With the ventilating flow of liquid and mist drops, in the opposite direction to the movement of people, the production boards parallel to its longitudinal axis pass a niche and place a partition with gaps relative to the soil and roof between the niche and the production, and the nozzles are placed in the niche Aa 1546671 5-5