Fully-mechanized face automatic filter cartridge filtering intelligent blowing dust removal fan

Abstract

The invention belongs to the technical field of filtering dust removal, and discloses a fully mechanized face automatic filter cartridge filtering intelligent blowing dust removal fan which comprises a dust removal fan body, the dust removal fan body comprises an air suction mechanism, a dust filtering mechanism and an air outlet mechanism which are sequentially connected from front to back, and the air suction mechanism comprises an air suction barrel, an air suction fan and a driving motor; the dust filtering mechanism comprises a dust filtering box body, a bag type filter cartridge, a filter cartridge dust concentration monitor, a filter cartridge dust cleaning assembly and an automatic dust sweeping assembly, a horizontal partition plate and a vertical partition plate are arranged in the dust filtering box body, the horizontal partition plate is flush with the top end face of the bag type filter cartridge, and a through hole matched with an outlet in the top end of the bag type filter cartridge in size is correspondingly formed in the horizontal partition plate; the top end of the vertical partition plate is connected with the rear end of the horizontal partition plate, the filter drum dust removal assembly comprises a nozzle, a ventilation pipeline and an air bag, the air outlet mechanism comprises an air outlet box body, a dust removal filter screen and a flow guide plate, and the air purifier has the advantages of being strong in dust suction force, sufficient in air transition storage space, good in multi-stage filtration and air purification effect, capable of guaranteeing the body health of workers and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of filtering and dust removal, and specifically relates to an intelligent dust removal fan with automatic filter cartridge filtering on a fully mechanized mining face. Background Art

[0002] The dust problem in the comprehensive mechanized coal mining face is serious, especially when the coal mining machine drum digs the coal mine, a large amount of dust will be generated instantly. The coal mining machine is close to the unmined coal mine as a whole, and the drums at both ends of the coal mining machine are close to the coal mine for digging. The coal mining machine body is narrow, and the operators can only stand on the back of the coal mining machine. The large amount of dust generated by the excavation will spread backwards, resulting in a bad air environment around the operators, affecting the health of the operators. At present, the dust removal fan is wider than the coal mining machine body, so it cannot be installed on the coal mining machine. It can only be installed at one end of the tunnel and connected to the dust removal with a ventilation duct, so it is impossible to accurately handle the dust generated by the drum, and there is a safety hazard that damages the health of the operators. Summary of the invention

[0003] The present invention aims to provide an intelligent dust removal fan with automatic filter cartridge filtration for comprehensive mining faces, intelligent regulation and automatic filtration, so as to solve the problem that the current lack of dust removal fans specifically for coal mining dust causes the rollers of coal mining machines to produce dust during operation, which affects the health of operators.

[0004] To this end, the technical solution adopted by the present invention is: an intelligent dust-blowing fan for automatic filter cartridge filtering on a fully mechanized mining face, comprising a dust-collecting fan arranged on the top of the coal mining machine, with the air inlet end close to and aligned with the coal mining drum and the air outlet end facing the working area of ​​the staff, the dust-collecting fan comprising a suction mechanism, a dust-filtering mechanism and an air outlet mechanism connected in sequence from front to back, the suction mechanism comprising a suction cylinder with reduced diameters at the front and rear ends, a suction fan mounted at the front part of the inner cavity of the suction cylinder and a driving motor for driving the suction fan to rotate, an anti-collision net being installed at the reduced diameter section at the front end of the suction cylinder, the driving motor being equipped with a dust cover, the dust-filtering mechanism comprising a dust-filtering box, a plurality of bag-type filter cartridges arranged in an array and located in the middle of the dust-filtering box, a filter-cartridge dust concentration monitor located in the dust-filtering box, a filter-cartridge cleaning component located directly above the bag-type filter cartridges and an automatic dust-sweeping component located directly below the bag-type filter cartridges, When the dust concentration monitor detects that the dust content on the bag filter cartridge exceeds the standard, the filter cartridge cleaning assembly starts to clean the filter cartridge. A horizontal partition and a vertical partition are provided in the dust filter box. The horizontal partition is flush with the top surface of the bag filter cartridge and is correspondingly provided with a through hole matching the size of the top outlet of the bag filter cartridge. The top of the vertical partition is connected to the rear end of the horizontal partition, and combined with the inner wall of the dust filter box to form a one-way passage for air filtered by the bag filter cartridge. The filter cartridge cleaning assembly includes nozzles corresponding to the upper and lower parts of the bag filter cartridges, ventilation ducts connected to the same longitudinal nozzles, and an air bag connected to the ventilation duct and providing injection gas. The air outlet mechanism includes an air outlet box, a dust removal filter that can be pulled out and installed at the front port of the air outlet box, and a plurality of guide plates arranged at intervals above and below the rear port of the air outlet box, thereby forming a wind curtain surrounding the staff's working area.

[0005] As a preferred embodiment of the above scheme, the automatic dust sweeping assembly includes a cleaning rod located at the bottom of the dust filter box and a screw drive mechanism for driving the cleaning rod to move left and right. The structural design is reasonable. A plurality of circular brooms are arranged in parallel at the front and back of the bottom of the cleaning rod to increase the contact area with the bottom of the dust filter box and ensure the cleaning effect.

[0006] Further preferably, the front and rear ends of the suction cylinder are both provided with suction transition cylinders extending horizontally outward, and the front end of the dust filter box is connected with the suction transition cylinder at the rear end of the suction cylinder, effectively preventing the anti-collision net from being directly exposed to the outside, and the suction transition cylinder at the front end plays a preliminary intercepting role, effectively preventing large pieces of scattered coal slag from above from directly and forcefully colliding into the anti-collision net and causing it to be damaged.

[0007] Further preferably, the drive motor is located at the bottom of the suction cylinder near the rear port, the front end of the dust cover is provided with a slope extending upward and backward, and the bottom of the slope fits with the inner wall of the suction cylinder, and the rear end of the dust cover is overlapped on the suction transition cylinder at the rear end of the suction cylinder to ensure smooth suction, effectively avoid dust accumulation, and have a reasonable structural design.

[0008] It is further preferred that the front end of the air outlet box is provided with an air outlet transition cylinder connected to the necked opening at the rear end of the dust filter box, so that dust can be concentrated and the wind speed is reduced after passing through the air outlet transition cylinder, and the dust fully reacts with the bag filter cartridge. The front and rear sides of the rear end of the air outlet box are closed inward, and the inner ends of several of the guide plates are close to each other and the outer ends are separated from each other, so as to expand the air spray range, thereby forming an encirclement around the staff's working area.

[0009] Further preferably, the front end of the ventilation duct is provided with an intelligent pulse valve, and the nozzle adopts a pulse nozzle, which is reasonably selected.

[0010] Further preferably, the left and right sides of the dust filter box are mirror-symmetrically connected to the bottom with ash discharge channels, the ash discharge channel is an overall right-angled triangle structure, and the outlet faces downward, which effectively avoids bumps and concentrates the dust to be discharged downward. The outlet of the ash discharge channel is equipped with a dust bag for convenient regular replacement after dust collection.

[0011] Further preferably, the bag filter cartridges are arranged in three rows and three columns, the dust removal fans are arranged in one-to-one correspondence with the coal mining drums, and the air outlet ends are directed toward the working area of ​​the staff, thereby forming a wind curtain that isolates the working area and effectively reduces the amount of dust entering the working area.

[0012] Further preferably, a lead duct is provided between the suction fan and the drive motor, and the structural design is reasonable.

[0013] Beneficial effects of the present invention:

[0014] (1) Compared with the existing lack of dust removal fans specifically for coal mining dust, this solution adopts a dust removal fan installed on the top of the coal mining machine, with the air inlet end close to the coal mining drum. The suction fan is installed at the front of the inner cavity of the suction cylinder, so as to provide strong suction force to ensure that most of the dust can be sucked away in time when the drum produces dust. This solution is installed on the coal mining machine and can also synchronously follow the movement trajectory of the coal mining machine. The front and rear ends of the suction cylinder are reduced in diameter, and the wind speed is increased when the air enters and exits the front and rear ends of the suction cylinder, which is convenient for the absorption and storage of dusty air and can ensure sufficient air transition storage space.

[0015] (2) Compared with various existing filtering measures, this solution adopts an array of bag filter cartridges. The top of the vertical partition is connected to the rear end of the horizontal partition, and combined with the inner wall of the dust filter box, a one-way passage for the air filtered by the bag filter cartridge is formed, thereby ensuring that the air can enter the passage only after repeated dust removal and meeting the preliminary filtration standards. The concept is novel and the design is ingenious. The filtered air is then filtered again through the dust removal filter at the front port of the air outlet box, forming a multi-stage filtration to ensure the air purification effect.

[0016] (3) The guide plates are arranged at intervals at the upper and lower ends of the rear port of the air outlet box to guide the wind direction. Since the air inlet end of the dust removal fan is close to the coal mining drum, the air outlet end is naturally away from the coal mining drum and faces the working area of ​​the staff. The guide plates form a wind curtain that isolates the working area, effectively preventing large areas of dust from spreading to the working area and affecting the health of the staff.

[0017] In summary, the present invention has the advantages of strong dust suction, sufficient air transition storage space, multi-stage filtration, good air purification effect, and protection of the health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the installation structure of the present invention.

[0019] Figure 2 It is the structural diagram of the dust removal fan.

[0020] Figure 3 A cross-sectional view of the dust removal fan.

[0021] Figure 4 It is a schematic diagram of the partial structure of the automatic dust sweeping component. DETAILED DESCRIPTION

[0022] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0023] Combination Figure 1 — Figure 4 As shown, an automatic filter cartridge filtering intelligent blowing dust removal fan for a fully mechanized mining face is composed of a dust removal fan 5 arranged on the top of a coal mining machine 4, with the air inlet end close to and aimed at the coal mining drum 41 and the air outlet end facing the working area of ​​the staff.

[0024] The dust removal fan 5 is composed of an air suction mechanism 1, a dust filtering mechanism 2 and an air outlet mechanism 3 which are sequentially connected from front to back.

[0025] The air suction mechanism 1 is composed of an air suction cylinder 11 with reduced diameters at the front and rear ends, an air suction fan 12 mounted at the front of the inner cavity of the air suction cylinder 11 , and a driving motor 13 for driving the air suction fan 12 to rotate.

[0026] An anti-collision net 111 is installed at the reduced diameter section at the front end of the suction cylinder 11.

[0027] The front and rear ends of the air suction cylinder 11 are both provided with an air suction transition cylinder 112 extending horizontally outward.

[0028] A lead-in duct 15 is provided between the suction fan 12 and the driving motor 13 .

[0029] The driving motor 13 is equipped with a dust cover 14 .

[0030] The driving motor 13 is located at the bottom of the suction cylinder 11 near the rear port.

[0031] The front end of the dust cover 14 is provided with an inclined surface extending upward and backward, and the bottom of the inclined surface fits with the inner wall of the air suction tube 11 .

[0032] The rear end of the dust cover 14 is overlapped on the air suction transition cylinder 112 at the rear end of the air suction cylinder 11.

[0033] The dust filtering mechanism 2 consists of a dust filtering box 21, a plurality of bag filter cartridges 22 arranged in an array in the middle of the dust filtering box 21, a filter cartridge dust concentration monitor 25 located in the dust filtering box 21, a filter cartridge cleaning assembly 23 located directly above the bag filter cartridge 22, and an automatic dust sweeping assembly 24 located directly below the bag filter cartridge 22.

[0034] The front end of the dust filter box 21 is communicated with the air suction transition cylinder 112 at the rear end of the air suction cylinder 11 .

[0035] A horizontal partition 211 and a vertical partition 212 are provided in the dust filter box 21 .

[0036] The left and right sides of the dust filter box 21 are mirror-symmetrically connected to the bottom with dust discharge channels 213.

[0037] The ash discharge channel 213 is in a right-angled triangle structure as a whole, and the outlet faces downward. A dust collecting bag is provided at the outlet of the ash discharge channel 213 .

[0038] The horizontal partition plate 211 is flush with the top surface of the bag filter cartridge 22 and is provided with a through hole that matches the size of the top outlet of the bag filter cartridge 22 .

[0039] The top end of the vertical partition 212 is connected to the rear end of the horizontal partition 211 , and is combined with the inner wall of the dust filter box 21 to form a one-way passage for the air filtered by the bag filter cartridge 22 .

[0040] The bag filter cartridges 22 are preferably arranged in three rows and three columns.

[0041] The filter cartridge cleaning assembly 23 is composed of nozzles 231 corresponding to the upper and lower sides of the bag filter cartridge 22, ventilation ducts 232 connected to the same longitudinal row of nozzles 231, and an air bag 233 connected to the ventilation duct 232 and providing injection gas.

[0042] An intelligent pulse valve 234 is provided at the front end of the ventilation duct 232 .

[0043] The nozzle 231 is preferably a pulse nozzle.

[0044] The automatic dust sweeping assembly 24 is composed of a cleaning rod 241 located at the bottom of the dust filter box 21 and a screw drive mechanism 242 that drives the cleaning rod 241 to move left and right.

[0045] A plurality of circular brooms 243 are arranged in parallel at the bottom of the cleaning rod 241 .

[0046] The air outlet mechanism 3 consists of an air outlet box 31, a dust filter 32 that can be pulled out and installed at the front port of the air outlet box 31, and a plurality of guide plates 33 that are arranged at intervals above and below the rear port of the air outlet box 31, so as to draw out the air filtered by the dust filter mechanism 2 to form a wind curtain surrounding the staff's work area.

[0047] An air outlet transition cylinder 311 is provided at the front end of the air outlet box body 31 and is communicated with the neck opening at the rear end of the dust filter box body 21 .

[0048] The front and rear sides of the rear end of the air outlet box body 31 are closed inwards, and the inner ends of the plurality of guide plates 33 are close to each other and the outer ends are separated from each other, thereby expanding the spray range of the air.

[0049] The dust removal fans 5 are arranged in one-to-one correspondence with the coal mining drums 41, and the air outlet ends face the working area of ​​the staff.

[0050] like Figure 1 As shown, the suction end of the suction mechanism 1 of the dust removal fan 5 is directed toward the contact surface between the coal mining drum 41 of the coal mining machine 4 and the coal mine, and the outlet end of the air outlet mechanism 3 is directed toward the side of the coal mining machine 4 away from the coal mine. When the coal mining machine starts to run, dust is generated as its two coal mining drums 41 rotate rapidly, and the dust removal fan 5 starts to run.

[0051] The driving motor 13 runs, driving the suction fan 12 to rotate, forming a wind flow at the air inlet of the dust removal fan 5 to absorb the dust generated by the coal mining drum 41.

[0052] The absorbed dust first enters the dust filter box 21 and is filtered by the bag filter cartridges 22 arranged in an array. After passing the filtration, the dust enters the air outlet box 31 along the one-way air passage formed by the horizontal partition 211, the vertical partition 212 and the dust filter box 21. The dust filter 32 performs secondary filtration, and the guide plate 33 guides the filtered air to be separated upward and downward to the maximum extent. The two dust removal fans 5 simultaneously spray clean air toward the working area, thereby forming a wind curtain to isolate the working area of ​​the staff.

[0053] Then, as the bag filter cartridge 22 repeatedly filters, enough dust is accumulated. When the filter cartridge dust concentration monitor 25 detects that the dust content on the bag filter cartridge 22 exceeds the standard, the filter cartridge cleaning component 23 starts to clean the filter cartridge.

[0054] The nozzle 231 is aimed at the bag filter cartridge 22 , and the air bag 233 provides the injection gas sprayed by the nozzle 231 through the ventilation duct 232 , thereby flushing away the dust attached to the bag filter cartridge 22 downwards.

[0055] Then the automatic dust sweeping assembly 24 is started, the cleaning rod 241 moves horizontally along the bottom of the dust filter box 21, and sweeps the dust at the bottom into the dust bag through the dust discharge channel 213. The dust bag needs to be replaced regularly.

Claims

1. An automatic filter cartridge filter intelligent spray dust removal fan for fully mechanized mining face, characterized by: The invention comprises a dust removal fan (5) arranged on the top of a coal mining machine (4), with an air inlet end close to and aligned with a coal mining drum (41) and an air outlet end facing a working area of ​​a worker, the dust removal fan (5) comprising an air suction mechanism (1), a dust filtering mechanism (2) and an air outlet mechanism (3) connected in sequence from front to back, the air suction mechanism (1) comprising an air suction cylinder (11) with reduced diameters at the front and rear ends, an air suction fan (12) mounted at the front part of the inner cavity of the air suction cylinder (11), and a driving motor (13) for driving the air suction fan (12) to rotate, the front reduced diameter section of the air suction cylinder (11) being installed The invention relates to a dust filter mechanism (2) having an anti-collision net (111), the driving motor (13) being equipped with a dust cover (14), the dust filter mechanism (2) comprising a dust filter box (21), a plurality of bag filter cartridges (22) arranged in an array and located in the middle of the dust filter box (21), a filter cartridge dust concentration monitor (25) located in the dust filter box (21), a filter cartridge dust cleaning component (23) located directly above the bag filter cartridge (22), and an automatic dust sweeping component (24) located directly below the bag filter cartridge (22). When the filter cartridge dust concentration monitor (25) detects that the bag filter cartridge (22) When the dust content exceeds the standard, the filter cartridge cleaning component (23) is activated to clean the filter cartridge. The dust filter box (21) is provided with a horizontal partition (211) and a vertical partition (212). The horizontal partition (211) is flush with the top surface of the bag filter cartridge (22) and is provided with a corresponding through hole matching the size of the top outlet of the bag filter cartridge (22). The top of the vertical partition (212) is connected to the rear end of the horizontal partition (211) and is combined with the inner wall of the dust filter box (21) to form a one-way passage for air filtered by the bag filter cartridge (22). The cartridge dust cleaning assembly (23) comprises nozzles (231) corresponding to the upper and lower sides of the bag filter cartridge (22), a ventilation duct (232) connected to the nozzles (231) in the same longitudinal row, and an air bag (233) connected to the ventilation duct (232) and providing injection gas. The air outlet mechanism (3) comprises an air outlet box (31), a dust removal filter (32) retractably mounted on the front port of the air outlet box (31), and a plurality of guide plates (33) spaced apart above and below the rear port of the air outlet box (31), thereby forming an air curtain surrounding the working area of ​​the staff.

2. According to claim 1, the automatic filter cartridge filtration intelligent spray dust removal fan for fully mechanized mining face is characterized by: The automatic dust sweeping assembly (24) comprises a cleaning rod (241) located at the bottom of the dust filter box (21) and a screw drive mechanism (242) for driving the cleaning rod (241) to move left and right. A plurality of circular brooms (243) are arranged in parallel in front and back at the bottom of the cleaning rod (241).

3. According to claim 1, the automatic filter cartridge filtration intelligent spray dust removal fan for fully mechanized mining face is characterized by: The front and rear ends of the air suction cylinder (11) are both provided with an air suction transition cylinder (112) extending horizontally outward, and the front end of the dust filter box (21) is in communication with the air suction transition cylinder (112) at the rear end of the air suction cylinder (11).

4. According to claim 3, the automatic filter cartridge filtration intelligent spray dust removal fan for fully mechanized mining face is characterized by: The drive motor (13) is located at the bottom of the suction cylinder (11) near the rear port, the front end of the dust cover (14) is provided with an inclined surface extending upward and backward, and the bottom of the inclined surface fits with the inner wall of the suction cylinder (11), and the rear end of the dust cover (14) overlaps the suction transition cylinder (112) at the rear end of the suction cylinder (11).

5. According to claim 1, the automatic filter cartridge filtration intelligent spray dust removal fan for fully mechanized mining face is characterized by: The front end of the air outlet box (31) is provided with an air outlet transition cylinder (311) which is connected to the neck opening at the rear end of the dust filter box (21); the front and rear sides of the rear end of the air outlet box (31) are inwardly closed; the inner ends of the plurality of guide plates (33) are close to each other and the outer ends are separated from each other, thereby expanding the air injection range.

6. According to claim 1, the automatic filter cartridge filtration intelligent spray dust removal fan for fully mechanized mining face is characterized by: The front end of the ventilation duct (232) is provided with an intelligent pulse valve (234), and the nozzle (231) is a pulse nozzle.

7. According to claim 1, the automatic filter cartridge filtration intelligent spray dust removal fan for fully mechanized mining face is characterized by: The left and right sides of the dust filter box (21) are both mirror-symmetrically connected to the bottom with dust discharge channels (213), the dust discharge channels (213) are in a right-angled triangle structure as a whole, and the outlet faces downwards, and a dust collection bag is provided at the outlet of the dust discharge channel (213).

8. According to claim 1, the automatic filter cartridge filtration intelligent spray dust removal fan for fully mechanized mining face is characterized by: The bag filter cartridges (22) are arranged in three rows and three columns, and the dust removal fans (5) are arranged in one-to-one correspondence with the coal mining drums (41), with the air outlet ends facing the working area of ​​the staff.

9. According to claim 1, the automatic filter cartridge filtration intelligent spray dust removal fan for fully mechanized mining face is characterized by: A lead pipe (15) is provided between the suction fan (12) and the drive motor (13).

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