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CN-122014324-A - Mine underground operation surface circulating water curtain dust removal equipment

CN122014324ACN 122014324 ACN122014324 ACN 122014324ACN-122014324-A

Abstract

The invention discloses a circulating water curtain dust removing device for a mine underground operation surface, which relates to the technical field of dust removing devices, and comprises a box body, wherein the box body is provided with an air inlet, a containing cavity and an air outlet which are sequentially communicated, the air outlet is provided with a fan, a water collecting tank is arranged below the bottom of the containing cavity, a baffle plate is vertically arranged in the cavity, the bottom of the chamber is connected with a bending plate, the bending plate is integrally formed with an inclined upward extension section with a ventilation through hole and a downward extension section extending into the water collecting tank, an air flow bypass gap is formed between the inclined upward extension section and the downward extension section, a continuous wall-attached water film can be formed on each plate surface of the bending plate by a spraying device, the ventilation through hole and the air flow bypass gap form an air flow bypass channel, and the channel and a water film path are not overlapped with each other. The invention forms a complete coanda water film by utilizing the coanda effect, dust in dust-containing airflow impacts the water film and then flows into the water collecting tank along with water, and the air is smoothly discharged through the channel, so that the effective compromise of dust removal and ventilation is realized, the dust removal operation is stable, and the mine underground operation scene is adapted.

Inventors

  • ZHANG QIANG
  • CHEN DIAN
  • JIANG LIPING
  • GUO LIANGLIANG
  • WANG XIANG
  • WANG YIJIAN
  • ZHANG JIAN
  • ZHOU LU
  • CHEN BIN
  • XU CHUNGUANG

Assignees

  • 江西铜业集团银山矿业有限责任公司

Dates

Publication Date
20260512
Application Date
20260313

Claims (10)

  1. 1. A mine underground operation face circulating water curtain dust removal device, comprising: The box body (1), the box body (1) is provided with an air inlet (2), a containing cavity (3) and an air outlet (4) which are communicated in sequence, and a fan (10) is arranged at the air outlet (4); the water collecting tank (5) is arranged below the bottom of the accommodating cavity (3); The baffle plate (6) is vertically arranged in the accommodating cavity (3) and positioned between the air inlet (2) and the air outlet (4), the top of the baffle plate (6) is connected with the top wall of the box body (1), and the bottom of the baffle plate extends to one side close to the water collecting tank (5); The device comprises a baffle plate (6), a bending plate (11), an arc-shaped guide surface, a water collecting tank (5) and a water collecting pipe, wherein the bottom of the baffle plate is connected with the bending plate (6), the bending plate (11) is integrally provided with an inclined upward extending section (111) and a downward extending section (112), a plurality of ventilation through holes (12) penetrating through the plate surface are formed in the inclined upward extending section (111), an air flow bypass gap (14) is formed between the inclined upward extending section (111) and the downward extending section (112) at intervals, and the arc-shaped guide surface is formed at the joint of the inclined upward extending section (111) and the downward extending section (112); The spraying device is arranged in the accommodating cavity (3) and is used for forming a continuous wall-attached water film on the plate surface of the inclined upward extending section (111), the arc-shaped flow guide surface and the plate surface of the downward extending section (112) of the bending plate (11); The air flow bypass gap (14) and the plurality of ventilation through holes (12) jointly form an air flow bypass channel communicated with the air inlet (2) and the air outlet (4), and an air flow circulation path of the air flow bypass channel and a flow guide surface where the coanda water film is located are not overlapped.
  2. 2. The mine downhole operation face circulating water curtain dust removal apparatus of claim 1, wherein: The bottom of the baffle plate (6) extends downwards in a tilting way in a direction away from the air inlet (2).
  3. 3. The mine downhole operation face circulating water curtain dust removal apparatus according to claim 1 or 2, wherein: The bottom end of the inclined upward extending section (111) of the bending plate (11) and the bottom of the baffle plate (6) are integrally formed, the top end of the inclined upward extending section extends towards the direction of the air outlet (4), and the plate surface of the inclined upward extending section faces the plate surface of the baffle plate (6).
  4. 4. A mine downhole operation face circulating water curtain dust removal apparatus as claimed in claim 3, wherein: The top of the downward extension section (112) and the top of the inclined upward extension section (111) are integrally formed, the bottom of the downward extension section vertically extends into the water collecting tank (5), and the bottom level of the downward extension section is lower than that of the baffle plate (6).
  5. 5. The mine downhole operation face circulating water curtain dust removal apparatus of claim 1, wherein: The spraying device is located between the air inlet (2) and the baffle plate (6), and the water spraying direction faces the baffle plate (6) to the plate surface of the air inlet (2) and is used for guiding water flow to the bending plate (11) along the plate surface of the baffle plate (6).
  6. 6. The mine downhole operation face circulating water curtain dust removal apparatus of claim 3 or 4, wherein: The plurality of ventilation through holes (12) are uniformly distributed along the length direction of the inclined upward extending sections (111) and are distributed in a plurality of rows along the width direction of the bending plate (11), the inclined upward extending sections (111) of the bending plate (11) face the plate surface of the baffle plate (6), a raised annular flow guide boss is uniformly formed around the edge of each ventilation through hole (12), and the annular flow guide boss is used for guiding water to bypass the ventilation through holes (12).
  7. 7. The mine downhole operation face circulating water curtain dust removal apparatus of claim 1, wherein: The water collecting tank (5) is internally and vertically provided with a filter plate (17), the filter plate (17) is parallel to the length direction of the water collecting tank (5), the water collecting tank (5) can be divided into a sewage area close to the baffle plate (6) and a clear water area far away from the baffle plate (6), and the water inlet end of the spraying device is communicated with the clear water area.
  8. 8. The mine downhole operation face circulating water curtain dust removal apparatus of claim 7, wherein: The inner wall of the box body (1) is connected with a water baffle (18), the water baffle (18) is covered right above the clear water zone, one end of the water baffle is in seamless connection with the top edge of the filter plate (17), and the other end of the water baffle is fixedly connected with the inner wall of the box body (1) and is used for preventing dust-containing water flow from directly falling into the clear water zone.
  9. 9. The mine downhole operation face circulating water curtain dust removal apparatus of claim 8, wherein: The water baffle (18) is arranged in a gradually-lowered inclined mode towards the direction of the filter plate (17), and the drainage side of the water baffle extends to the top of the filter plate (17) and is used for guiding dust-containing water flow to flow into a sewage area.
  10. 10. The mine downhole operation face circulating water curtain dust removal apparatus of claim 1, wherein: The spraying device comprises a spraying pipe (7), a water pump (8) and a plurality of spraying heads (9), wherein the water inlet end of the spraying pipe (7) is connected to a clear water area of the water collecting tank (5), the water outlet end of the spraying pipe (7) is correspondingly connected with the spraying heads (9), the spraying heads (9) are located between the air inlet (2) and the baffle plates (6) and are arranged at equal intervals along the width direction of the baffle plates (6), the water spraying direction of the spraying heads (9) obliquely downwards faces the plate surface of the baffle plates (6) facing the air inlet (2) so as to guide water flow to the bending plate (11) along the plate surface of the baffle plates (6), and the water pump (8) is communicated with the spraying pipe (7) and is used for providing pumping power for the spraying pipe (7).

Description

Mine underground operation surface circulating water curtain dust removal equipment Technical Field The invention relates to the technical field of circulating water curtain dust removal, in particular to circulating water curtain dust removal equipment for a mine underground operation surface. Background The circulating water curtain dust removing equipment is used as a dust removing device commonly used underground, and the core principle is that water curtain interception and dust absorption are formed through water circulation so as to improve the working environment with low mine visibility and reduce the risk of dust suction by workers to cause pneumoconiosis. At present, a conventional water curtain dust removing device for mines forms a suspended water curtain in an air flow channel through a spraying device, a fan is used for driving dust-containing air flow to pass through the suspended water curtain, dust particles in the air flow are enabled to contact and agglomerate with the water curtain, finally fall into a water collecting tank along with the water flow to remove dust, if the water curtain is perfect and is not torn, the water curtain becomes a 'water wall', air is not passed, the dust removing device becomes a 'plug', if the air passes through, the water curtain is inevitably broken, and fine dust following the air flow can escape along the broken gaps at the moment of breaking, but not be captured by water. In conclusion, the existing circulating water curtain dust removal equipment is limited by the inherent contradiction, and is difficult to achieve both ventilation requirements and dust removal effects, or the underground operation cannot be normally adapted due to wind blockage, or dust escapes due to water curtain rupture, and finally the ideal dust removal effect is difficult to achieve. Disclosure of Invention The invention aims to provide circulating water curtain dust removal equipment for a mine underground working surface, which aims to solve the problems that the existing circulating water curtain dust removal equipment is difficult to consider ventilation requirements and dust removal effects and dust escape is easy to occur due to air blockage or water curtain breakage. In order to solve the technical problems, the invention specifically provides the following technical scheme: A mine downhole operation face circulating water curtain dust removal device, comprising: the box body is provided with an air inlet, a containing cavity and an air outlet which are sequentially communicated, and a fan is arranged at the air outlet; The water collecting tank is arranged below the bottom of the accommodating cavity; The baffle plate is vertically arranged in the accommodating cavity and positioned between the air inlet and the air outlet, the top of the baffle plate is connected with the top wall of the box body, and the bottom of the baffle plate extends to one side close to the water collecting tank; The bending plate is connected with the bottom of the baffle plate, an inclined upward extending section and a downward extending section are integrally formed on the bending plate, and a plurality of ventilation through holes penetrating through the plate surface are formed in the inclined upward extending section; the inclined upward extending section and the downward extending section are separated to form an airflow bypass gap, and an arc-shaped guide surface is formed at the joint of the inclined upward extending section and the downward extending section; The spraying device is arranged in the accommodating cavity and is used for forming a continuous wall-attached water film on the inclined upward extending section plate surface, the arc-shaped guide surface and the downward extending section plate surface of the bending plate; the air flow bypass gap and the plurality of ventilation through holes jointly form an air flow bypass channel communicated with the air inlet and the air outlet, and an air flow circulation path of the air flow bypass channel and a flow guide surface where the wall-attached water film is positioned are not overlapped. Further, the bottom of the baffle plate extends downwards in a tilting mode in a direction away from the air inlet. Further, the bottom end of the inclined upward extending section of the bending plate and the bottom of the baffle plate are integrally formed, the top end of the inclined upward extending section extends towards the air outlet, and the plate surface of the inclined upward extending section is arranged towards the plate surface of the baffle plate. Further, the top of the downward extending section and the top of the inclined upward extending section are integrally formed, the bottom of the downward extending section vertically extends into the water collecting tank, and the bottom horizontal height of the downward extending section is lower than that of the baffle plate. Further, the spraying device is located between the air in