CN-121988100-A - Mine air inlet purification device suitable for sand blasting environment

CN121988100ACN 121988100 ACN121988100 ACN 121988100ACN-121988100-A

Abstract

The invention discloses a mine air inlet purification device suitable for a sand-blown environment, which belongs to the technical field of mine ventilation equipment and comprises an air inlet box, wherein an air inlet channel is arranged at the upper part of the air inlet box, a collecting cavity is arranged at the lower part of the air inlet box, a partition plate is fixedly arranged between the air inlet channel and the collecting cavity, a plurality of through holes which are vertically communicated are uniformly formed in the partition plate, a first impact plate is arranged on the inner wall of one side of the air inlet channel, a plurality of groups of second impact plates are alternately arranged on the inner wall of the other side of the air inlet channel at intervals along the length direction of the air inlet channel, an included angle between the windward sides of the first impact plate and the second impact plate is an obtuse angle, the first impact plate extends between the adjacent second impact plates, and the second impact plate extends between the adjacent first impact plates, so that an S-shaped air flow path is formed in the air inlet channel. According to the invention, the sand and dust are separated from the air flow efficiently, and meanwhile, the sand and dust fall into the collecting cavity, so that the stable flow area of the air inlet channel is ensured.

Inventors

LUO YUQI
SHI MING
WANG MINGCHENG
SU DENGFENG
TAN BAOHUI
WANG GANG
HU YINGPENG

Assignees

金川集团股份有限公司
西南科技大学

Dates

Publication Date: 20260508
Application Date: 20260327

Claims (5)

1. The utility model provides a mine air inlet purifier suitable for sand blown by wind environment, includes air inlet case (100), its characterized in that, the upper portion of air inlet case (100) is equipped with air inlet channel (110), and the lower part is equipped with collects chamber (130), set firmly baffle (120) between air inlet channel (110) and collection chamber (130), evenly set up a plurality of through-holes (121) that link up from top to bottom on baffle (120), one side inner wall of air inlet channel (110) is equipped with first striking board (140), and the opposite side inner wall is equipped with second striking board (150), and first striking board (140) and second striking board (150) are along the length direction interval of air inlet channel (110) and lay the multiunit in turn, contained angle between the windward side of first striking board (140) and second striking board (150) is the obtuse angle, first striking board (140) extend to between adjacent second striking board (150), second striking board (150) extend to between adjacent first striking board (140), make form S type air flow path in air inlet channel (110).
2. The mine air intake purification device applicable to the sand blown environment according to claim 1, wherein a first baffle is fixedly arranged in the collecting cavity (130), and the first baffle is perpendicular to the length direction of the air intake channel (110).
3. The mine air inlet purification device suitable for the sand blown environment according to claim 2, wherein the bottom surface of the collecting cavity (130) is obliquely arranged, an extension part (160) communicated with the inside of the collecting cavity (130) is integrally formed on the outer side wall of the collecting cavity (130) corresponding to the lower end of the bottom surface, an opening communicated with the outside is formed at the bottom of the extension part (160), and a second baffle (170) for blocking the opening is arranged at the opening.
4. A mine air inlet purification device suitable for a sand blown environment according to claim 3, wherein the inner side wall and the outer side wall of the extension part (160) are provided with slots (161), sealing strips are embedded and fixed on the inner wall of the slots (161), and the second baffle (170) is matched with the slots (161) in a drawing mode to seal and block the opening.
5. The mine air intake purification apparatus for a windblown sand environment of claim 1, wherein the windward sides of the first and second impingement plates (140, 150) are of a wave-like configuration.

Description

Mine air inlet purification device suitable for sand blasting environment Technical Field The invention belongs to the technical field of mine ventilation equipment, and particularly relates to a mine air inlet purification device suitable for a sand blasting environment. Background The mine ventilation system is a core guarantee system for mine safety production, and the mine air inlet end is provided with an air inlet filtering device which is used for intercepting dust, particles and other impurities in the outside air, so that the phenomenon that the running efficiency of the ventilation system is affected and the abrasion of underground equipment is caused and the health of operators is endangered when the impurities enter the mine is avoided. In the prior art, chinese patent (CN 221942495U) discloses a mine ventilation device, the device adopts a structure that a filtering inclined plate and an inclined baffle are matched in an input cavity of a ventilation box at an upper interval and a lower interval in parallel, so that air forms a bending flow path in the vertical direction to realize dust filtration, meanwhile, the filtering effect is assisted and improved by matching with a water body in the input cavity, and a cleaning rod is arranged to clean the filtering inclined plate, so that the problem that the air humidity is overlarge due to a traditional water spraying filtering mode is effectively solved, and the mine exhaust filtering effect under a conventional low-dust environment is optimized. For mines in high-wind sand environment areas, in the air inlet process, a large amount of sand particles and dust mixed with fine dust can be entrained in the air, the filtering inclined plate and inclined baffle filtering structure in the prior art aims at the exhaust treatment of low-concentration dust-containing air in the mines, the filtering inclined plate and the inclined baffle which are vertically stacked are matched, the flow channels of the filtering inclined plate and inclined baffle are of a vertical laminar flow structure, wind sand accumulation can be caused, the air inlet flow area can be continuously reduced, the air inlet efficiency of the mines is reduced, and the operation load of a ventilation system is increased. Disclosure of Invention The invention aims to provide a mine air inlet purification device suitable for a sand blasting environment, and aims to solve the problems in the prior art in the background art. In order to achieve the above purpose, the invention adopts the following technical scheme: The utility model provides a mine air inlet purifier suitable for sand blown by wind environment, includes the air inlet case, the upper portion of air inlet case is equipped with the air inlet passageway, and the lower part is equipped with the collection chamber, set firmly the baffle between air inlet passageway and the collection chamber, evenly set up a plurality of through-holes that link up from top to bottom on the baffle, one side inner wall of air inlet passageway is equipped with first striking board, and the opposite side inner wall is equipped with the second striking board, and first striking board and second striking board are along the length direction interval of air inlet passageway and lay the multiunit in turn, contained angle between the windward side of first striking board and second striking board is the obtuse angle, first striking board extends to between the adjacent second striking board, the second striking board extends to between the adjacent first striking board, makes the interior S-shaped air flow path that forms of air inlet passageway. Further, a first baffle is fixedly arranged in the collecting cavity, and the first baffle is perpendicular to the length direction of the air inlet channel. Further, the bottom surface slope setting of collecting the chamber, integrated into one piece has the extension that is linked together with collecting the intracavity portion on the lateral wall that the chamber corresponds the bottom surface low end, the opening that is linked together with the outside has been seted up to the bottom of extension, the opening part is equipped with the second baffle that is used for shutoff this open-ended. Further, the slot is offered to the inside and outside wall of extension, the inner wall of slot inlays to be established and is fixed with the sealing strip, second baffle and slot pull cooperation are in order to seal shutoff the opening. Further, the windward surfaces of the first impact plate and the second impact plate are of wave-shaped structures. Compared with the defects and shortcomings of the prior art, the invention has the following beneficial effects: The invention provides a mine air inlet purification device suitable for a sand-blown environment, wherein a plurality of groups of first impact plates and second impact plates which are arranged at obtuse angles are alternately arranged in an air inlet channel, and