Ventilation and dust removal device for high-gas area

Abstract

The invention relates to a ventilation and dust removal device for a high-gas area, which relates to the technical field of coal mine safety protection and comprises a ventilation box body, a first dust removal assembly, a second dust removal assembly, an adjusting assembly and a pulse cleaning assembly, the ventilation box body is horizontally arranged, and a fan is mounted at one end of the ventilation box body; the first dust removal assembly is located at the end, away from the draught fan, of the ventilation box and used for preliminarily removing dust from air entering the ventilation box. The second dust removal assembly is located in the ventilation box body and used for conducting secondary dust removal on air entering the ventilation box body. The adjusting assembly is located in the ventilation box body and used for adjusting the working state of the second dust removal assembly. The pulse cleaning assembly is located in the ventilation box body and used for cleaning coal dust attached to the second dust removal assembly. The device has the effect that coal dust is not prone to blocking the device.

Description

Technical Field

[0001] This application relates to the technical field of coal mine safety protection, and in particular to a ventilation and dust removal device for high-gas areas. Background Technology

[0002] Ventilation and dust removal devices for high-gas areas are core safety protection equipment in coal mine mining operations in high-gas areas. Their core function is to dilute the gas concentration and discharge the polluted airflow containing gas and coal dust from the working area to a safe area, avoiding the risk of explosion caused by accumulation. They are an indispensable key equipment for ensuring safe production in high-gas areas of coal mines.

[0003] Currently, existing ventilation and dust removal devices for high-gas areas typically include an exhaust fan, a dust removal module, a control unit, and an exhaust pipe. During use, operators deploy the device at a suitable location on the mining face, start the exhaust fan to extract polluted airflow containing gas and coal dust from the working area. When the airflow passes through the dust removal module, the coal dust is captured and filtered. The purified airflow carries the gas and is discharged from the working area through the exhaust pipe. The control unit adjusts the exhaust fan speed according to preset parameters to maintain a stable exhaust volume and ensure that the gas concentration and coal dust content meet the safety operation standards.

[0004] However, existing ventilation and dust removal devices for high-gas areas have significant technical shortcomings: on the one hand, it is difficult to simultaneously achieve both exhaust and dust removal functions, and the filter media of the dust removal module is easily clogged by coal dust, affecting the continuous and stable exhaust of the device and requiring frequent shutdowns for cleaning, thus reducing operational efficiency. On the other hand, the captured coal dust lacks an effective collection mechanism, which can easily generate secondary dust, causing further safety and health hazards. Summary of the Invention

[0005] To overcome the above-mentioned technical problems, this application provides a ventilation and dust removal device for high-gas areas.

[0006] This application provides a ventilation and dust removal device for high-gas areas, which adopts the following technical solution: A ventilation and dust removal device for high-gas areas includes a ventilation box, a first dust removal component, a second dust removal component, an adjustment component, and a pulse cleaning component. The ventilation box is horizontally arranged, and a fan is installed at one end of the ventilation box. The first dust removal component is located at the end of the ventilation box away from the fan and is used for preliminary dust removal of the air entering the ventilation box. The second dust removal component is located inside the ventilation box and is used for secondary dust removal of the air entering the ventilation box. The adjustment component is located inside the ventilation box and is used to adjust the working state of the second dust removal component. The pulse cleaning component is located inside the ventilation box and is used to clean coal dust adhering to the second dust removal component.

[0007] By adopting the above technical solution, during use, the operator drives the fan and regulating components to work. The fan draws the dust-laden airflow from the coal mine roadway into the ventilation box. The first dust removal component performs preliminary dust removal on the airflow, intercepting large coal dust particles. The second dust removal component performs secondary dust removal on the airflow. The airflow after secondary dust removal is discharged outside the roadway. The regulating component switches the working chamber of the second dust removal component at regular intervals, making the second dust removal component less prone to clogging. When the regulating component adjusts the working state of the second dust removal component, the pulse cleaning component cleans the second dust removal component regularly, making the filter material of the second dust removal component less prone to clogging.

[0008] Optionally, the first dust removal component includes a first folding plate and a second folding plate; the first folding plate is vertically disposed inside the ventilation box and fixedly connected to the ventilation box; the second folding plate is vertically disposed on one side of the first folding plate and fixedly connected to the ventilation box; multiple sets of the first folding plate and the second folding plate are arranged at intervals along the length direction of the ventilation box.

[0009] By adopting the above technical solution, when in use, the first and second folding plates, which are set at intervals, form an "S"-shaped flow channel. When the dust-laden airflow passes through, it needs to frequently change its flow direction. Large coal dust particles cannot follow the airflow due to inertia and will hit the surfaces of the first and second folding plates and settle down, thus achieving preliminary dust removal and reducing the filtration pressure of the subsequent second dust removal component.

[0010] Optionally, the second dust removal assembly includes a dust removal box, a mounting plate, and a partition; the dust removal box is fixedly installed inside the ventilation box, and an air outlet is provided on one side of the dust removal box; a ventilation pipe is inserted into one side of the dust removal box, and the ventilation pipe communicates with the interior of the dust removal box; a connecting pipe is inserted into the inner wall of the dust removal box, and the connecting pipe communicates with the ventilation pipe; the mounting plate is fixedly installed inside the dust removal box, and the mounting plate divides the interior of the dust removal box into an air inlet chamber and an air outlet chamber; multiple cloth bags are fixedly installed on the mounting plate; the partition is fixedly installed inside the air inlet chamber of the dust removal box, and its top end is fixedly connected to the mounting plate; the partition divides the air inlet chamber of the dust removal box into a first dust removal chamber and a second dust removal chamber; one end of the ventilation pipe communicates with the first dust removal chamber of the dust removal box, and one end of the connecting pipe communicates with the second dust removal chamber of the dust removal box.

[0011] By adopting the above technical solution, during use, the airflow after preliminary dust removal enters the first dust removal chamber through the ventilation pipe, or enters the second dust removal chamber through the connecting pipe, and achieves secondary filtration through the filter bags; the filter bags only allow airflow to pass through, and coal dust is intercepted on the outer surface of the filter bags. The purified airflow enters the outlet chamber and is discharged; the partition divides the inlet chamber into two independent chambers, which can be switched by the adjustment component. When the filter bags in the first dust removal chamber need to be cleaned, the adjustment component isolates the ventilation pipe, and the airflow after preliminary dust removal flows into the second dust removal chamber through the connecting pipe. The pulse cleaning component cleans the filter bags in the first dust removal chamber, so that the equipment is always in a ventilated state when the filter bags in the dust removal box are being cleaned, avoiding the impact of shutdown.

[0012] Optionally, the second dust removal assembly further includes a dust guide plate; a cleaning port is provided on one side of the ventilation box, and a cleaning door is vertically installed inside the cleaning port, with one end of the cleaning door rotatably connected to the ventilation box; a dust discharge port is provided on one side of the dust removal box, and two sets of dust discharge ports are provided, located on both sides of the partition respectively; the dust guide plate is inclinedly installed inside the dust removal box and fixedly connected to the dust removal box, and two sets of dust guide plates are provided, corresponding one-to-one with the two sets of dust discharge ports.

[0013] By adopting the above technical solution, when in use, the coal dust cleaned by the pulse cleaning component falls onto the inclined ash guide plate, and the coal dust slides down the ash guide plate to the ash discharge port, realizing the centralized collection of coal dust; the operator regularly opens the cleaning door to clean the coal dust at the ash discharge port to avoid the accumulation of coal dust in the box.

[0014] Optionally, the adjusting assembly includes a sliding baffle, a drive motor, a reciprocating screw, a first bellows, and a second bellows; the dust collector housing has an adjusting groove; the ventilation pipe has a first clearance hole, and the connecting pipe has a second clearance hole, the second clearance hole being directly opposite the first clearance hole; the sliding baffle is inserted into the ventilation pipe, with one end located in the adjusting groove, and the sliding baffle is slidably connected to the dust collector housing; the drive motor is embedded in the inner wall of the adjusting groove; the reciprocating screw is horizontally arranged in the adjusting groove and fixedly connected to the output shaft of the drive motor, and the reciprocating screw is threadedly connected to the sliding baffle; the first bellows is sleeved on the reciprocating screw, and both ends are fixedly connected to the dust collector housing and the sliding baffle, respectively; the second bellows is located on the side of the sliding baffle away from the first bellows and is sleeved on the reciprocating screw, and both ends of the second bellows are fixedly connected to the dust collector housing and the sliding baffle, respectively.

[0015] By adopting the above technical solution, during use, the operator drives the drive motor to work, the drive motor drives the reciprocating screw to rotate, and the reciprocating screw drives the sliding baffle to slide back and forth along the length of the dust collector. When the sliding baffle isolates the ventilation pipe, the airflow flows into the dust collector through the connecting pipe. When the sliding baffle isolates the connecting pipe, the airflow flows into the dust collector through the ventilation pipe. The first corrugated pipe and the second corrugated pipe cover both ends of the reciprocating screw, making it difficult for coal dust in the airflow to adhere to the screw.

[0016] Optionally, the pulse cleaning assembly is provided in two sets, respectively located on both sides of the partition. The pulse cleaning assembly includes a cleaning section and a driving section. The cleaning section is located above the mounting plate and is used to clean the filter bag. Multiple sets of cleaning sections are arranged at intervals along the length of the mounting plate. The driving section is located inside the dust collector and is used to drive the cleaning section to work.

[0017] By adopting the above technical solution, the two sets of pulse cleaning components correspond to the first dust removal chamber and the second dust removal chamber respectively, and multiple sets of cleaning sections are distributed along the length of the mounting plate, making it easy to clean multiple filter bags; the drive unit provides power to the cleaning section to realize automatic pulse jet airflow, making the filter bags less prone to clogging.

[0018] Optionally, the cleaning unit includes a blowpipe and a nozzle; the blowpipe is horizontally arranged inside the dust collector and located above the mounting plate, and the blowpipe is fixedly connected to the dust collector; the nozzle is installed on the blowpipe, and the air outlet is directly opposite the filter bag.

[0019] By adopting the above technical solution, when in use, the drive unit introduces high-pressure gas into the blow pipe, and the high-pressure gas sprays airflow onto the filter bag through the nozzle. The airflow impacts the surface of the filter bag, causing the coal dust attached to the surface of the filter bag to fall off, making the filter bag less prone to clogging.

[0020] Optionally, the drive unit includes a drive telescopic plate, a connecting pipe, and a return pipe; the drive telescopic plate is vertically disposed on one side of the adjusting groove, and the fixed end is embedded in the inner side wall of the adjusting groove away from the partition plate; the plateless cavity of the drive telescopic plate is filled with air; a spring is disposed in the plateless cavity of the drive telescopic plate, and the two ends of the spring are fixedly connected to the movable end of the drive telescopic plate and the fixed end of the drive telescopic plate, respectively; the two ends of the connecting pipe are respectively connected to the spray pipe and the plateless cavity of the drive telescopic plate, and an overflow valve is installed on the connecting pipe; both ends of the return pipe are connected to the connecting pipe, and the two ends are located on both sides of the overflow valve, and a one-way valve is installed on the return pipe.

[0021] By adopting the above technical solution, when the sliding baffle slides to one side of the adjustment groove, the sliding baffle presses the movable end of the drive telescopic plate, the spring is in a compressed state, the volume of the plateless cavity of the drive telescopic plate decreases, and the air is compressed to form high-pressure gas. When the air pressure in the plateless cavity of the drive telescopic plate is higher than the preset opening pressure of the overflow valve, the overflow valve is in an open state, and the high-pressure air is injected into the spray pipe through the connecting pipe, making it easy for the nozzle to spray airflow onto the bag. When the sliding baffle slides away from the drive telescopic plate, the spring returns to its original position, and the spring drives the movable end of the drive telescopic plate to return to its original position. The volume of the plateless cavity of the drive telescopic plate increases, and a negative pressure is generated in the plateless cavity of the drive telescopic plate, making it easy for outside air to flow into the plateless cavity of the drive telescopic plate through the nozzle, spray pipe, connecting pipe and return pipe.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a first dust removal component and a second dust removal component, coal dust is less likely to adhere to the air discharged from the equipment; 2. By setting up adjustment components and pulse cleaning components, the cloth bag is easy to clean. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a cross-sectional view of an embodiment of this application; Figure 3 This is a partial cross-sectional view of an embodiment of this application for showing the first clearance groove; Figure 4 This is a cross-sectional view of the ventilation duct in this embodiment of the application; Figure 5 yes Figure 3 A magnified view of a portion of point A in the middle.

[0024] Explanation of reference numerals in the attached drawings: 1. Ventilation box; 11. Fan; 12. Cleaning port; 13. Cleaning door; 14. Lock; 2. First dust removal assembly; 21. First folding plate; 22. Second folding plate; 3. Second dust removal assembly; 31. Dust removal box; 311. Air outlet; 312. Ventilation duct; 3121. First clearance hole; 313. Connecting pipe; 3131. Second clearance hole; 314. Ash discharge port; 315. Adjustment groove; 32. Mounting plate; 321. 33. Cloth bag; 34. Divider; 4. Ash guide plate; 5. Adjustment component; 41. Sliding baffle; 42. Drive motor; 43. Reciprocating screw; 44. First bellows; 45. Second bellows; 5. Pulse cleaning component; 51. Cleaning section; 511. Blowpipe; 512. Nozzle; 52. Drive section; 521. Drive telescopic plate; 5211. Spring; 522. Connecting pipe; 5221. Overflow valve; 523. Return pipe; 5231. Check valve. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] This application discloses a ventilation and dust removal device for high-gas areas. (Refer to...) Figure 1 , Figure 2 and Figure 3 A high-gas area ventilation and dust removal device includes a ventilation housing 1, a first dust removal component 2, a second dust removal component 3, an adjustment component 4, and a pulse cleaning component 5. The ventilation housing 1 is horizontally positioned, with a fan 11 installed at one end. The first dust removal component 2 is located at the end of the ventilation housing 1 furthest from the fan 11 and is used for preliminary dust removal of the air entering the ventilation housing 1. The second dust removal component 3 is located inside the ventilation housing 1 and is used for secondary dust removal of the air entering the ventilation housing 1. The adjustment component 4 is located inside the ventilation housing 1 and is used to adjust the operating state of the second dust removal component 3. The pulse cleaning component 5 is located inside the ventilation housing 1 and is used to clean coal dust adhering to the second dust removal component 3.

[0027] In use, the operator drives the blower 11 and the regulating component 4 to work. The blower 11 draws the dust-laden airflow in the coal mine roadway into the ventilation box 1. The first dust removal component 2 performs preliminary dust removal on the airflow and intercepts large coal dust particles. The second dust removal component 3 performs secondary dust removal on the airflow. The airflow after secondary dust removal is discharged outside the roadway. The regulating component 4 switches the working chamber of the second dust removal component 3 at regular intervals. When the regulating component 4 adjusts the working state of the second dust removal component 3, the pulse cleaning component 5 cleans the second dust removal component 3 periodically.

[0028] Reference Figure 1 The ventilation box 1 is rectangular in shape with openings on both sides. A cleaning port 12, which is rectangular in shape, is provided on one side of the ventilation box 1. A cleaning door 13, which is rectangular in shape, is vertically installed inside the cleaning port 12 and is rotatably connected to the ventilation box 1 at its top. A latch 14 is installed on the ventilation box 1 to lock the cleaning door 13.

[0029] Reference Figure 1 and Figure 2 The first dust removal component 2 includes a first folding plate 21 and a second folding plate 22. The first folding plate 21 is vertically disposed inside the ventilation box 1 and is rectangular in shape, and is fixedly connected to the ventilation box 1. The second folding plate 22 is vertically disposed on one side of the first folding plate 21 and is rectangular in shape, and is fixedly connected to the ventilation box 1. Multiple sets of the first folding plate 21 and the second folding plate 22 are arranged at intervals along the length of the ventilation box 1.

[0030] Reference Figure 2The second dust removal component 3 includes a dust removal box 31, a mounting plate 32, a partition plate 33, and a dust guide plate 34. The dust removal box 31 is horizontally arranged inside the ventilation box 1 and is rectangular in shape. An air outlet 311 is opened on the side of the dust removal box 31 near the fan 11. The dust removal box 31 is fixedly connected to the ventilation box 1.

[0031] Reference Figure 3 and Figure 4 A ventilation pipe 312 is inserted into one side of the dust collector housing 31. The ventilation pipe 312 is rectangular and one end is connected to the interior of the dust collector housing 31. A first clearance hole 3121 is provided on the ventilation pipe 312. A connecting pipe 313 is inserted into the inner wall of the dust collector housing 31. The connecting pipe 313 is rectangular and one end is connected to the ventilation pipe 312. A second clearance hole 3131 is provided on the connecting pipe 313, and the second clearance hole 3131 is positioned opposite to the first clearance hole 3121.

[0032] Reference Figure 2 and Figure 3 The dust collector housing 31 has a ash discharge port 314 on the side away from the connecting pipe 313. The ash discharge port 314 is rectangular and there are two sets of it, located on both sides of the length of the dust collector housing 31. The dust collector housing 31 has an adjustment groove 315, which is rectangular and communicates with the first clearance hole 3121 and the second clearance hole 3131.

[0033] Reference Figure 2 A mounting plate 32 is horizontally positioned inside the dust collector housing 31 and is rectangular in shape. The mounting plate 32 is fixedly connected to the dust collector housing 31, dividing the interior of the dust collector housing 31 into an air inlet chamber and an air outlet chamber. The air outlet 311 is located above the mounting plate 32. Multiple filter bags 321 are fixedly mounted on the mounting plate 32, spaced apart along its length. A partition plate 33 is vertically positioned inside the air inlet chamber of the dust collector housing 31 and is rectangular in shape. The partition plate 33 is fixedly connected to the dust collector housing 31, and its top end is fixedly connected to the mounting plate 32. The partition plate 33 divides the air inlet chamber of the dust collector housing 31 into a first dust collector chamber and a second dust collector chamber. One end of a ventilation pipe 312 communicates with the first dust collector chamber of the dust collector housing 31, and one end of a connecting pipe 313 communicates with the second dust collector chamber of the dust collector housing 31.

[0034] The dust guide plate 34 is fixedly installed inside the dust collector 31 and is rectangular in shape. The dust guide plate 34 is inclined downward from the side closest to the ventilation duct 312 to the side furthest from the ventilation duct 312. There are two sets of dust guide plates 34, which correspond one-to-one with two sets of dust discharge ports 314.

[0035] In use, multiple sets of spaced first baffles 21 and second baffles 22 form an "S"-shaped flow channel. The dust-laden airflow needs to frequently change direction as it passes through. Large coal dust particles, due to inertia, cannot follow the airflow's direction and will collide with the surfaces of the first and second baffles 21 and settle, achieving initial dust removal. The airflow after initial dust removal enters the first dust removal chamber through the ventilation pipe 312, or the second dust removal chamber through the connecting pipe 313. Secondary filtration is achieved through the filter bag 321, which only allows airflow to pass through. Coal dust is intercepted on the outer surface of the filter bag 321, and the purified airflow enters the outlet chamber and is discharged.

[0036] Reference Figure 3 The adjusting assembly 4 includes a sliding baffle 41, a drive motor 42, a reciprocating screw 43, a first bellows 44, and a second bellows 45. The sliding baffle 41 is horizontally inserted into the ventilation duct 312, with one end located within the adjusting groove 315. The sliding baffle 41 is rectangular and slidably connected to the dust collector 31 along its length. The drive motor 42 is horizontally embedded in the inner wall of the adjusting groove 315. The reciprocating screw 43 is horizontally positioned within the adjusting groove 315 and fixedly connected to the output shaft of the drive motor 42. The reciprocating screw 43 is threadedly connected to the sliding baffle 41. The first bellows 44 is horizontally sleeved on the reciprocating screw 43, with both ends fixedly connected to the dust collector 31 and the sliding baffle 41, respectively. The second corrugated pipe 45 is located on the side of the sliding baffle 41 away from the first corrugated pipe 44, and is horizontally sleeved on the reciprocating screw 43. The two ends of the second corrugated pipe 45 are fixedly connected to the dust collector 31 and the sliding baffle 41, respectively.

[0037] Reference Figure 2 and Figure 3 Two sets of pulse cleaning components 5 are provided, located on both sides of the partition 33. Each pulse cleaning component 5 includes a cleaning section 51 and a driving section 52. The cleaning section 51 is located above the mounting plate 32 and is used to clean the filter bags 321. Multiple sets of cleaning sections 51 are spaced apart along the length of the mounting plate 32. The driving section 52 is located inside the dust collector housing 31 and is used to drive the cleaning section 51 to operate.

[0038] Reference Figure 2 The cleaning unit 51 includes a blowpipe 511 and nozzles 512. The blowpipe 511 is horizontally arranged inside the dust collector 31 and is in the shape of a circular tube. The blowpipe 511 is located above the mounting plate 32 and is fixedly connected to the dust collector 31. The nozzles 512 are mounted on the blowpipe 511, and their outlet ends are directly opposite the filter bag 321. Multiple nozzles 512 are spaced apart along the length of the blowpipe 511.

[0039] Reference Figure 3 and Figure 5The drive unit 52 includes a drive telescopic plate 521, a connecting pipe 522, and a return pipe 523. The drive telescopic plate 521 is vertically mounted on one side of the adjusting groove 315, with its fixed end embedded in the inner wall of the adjusting groove 315 away from the partition plate 33. The plateless cavity of the drive telescopic plate 521 is filled with air. A spring 5211 is horizontally mounted inside the plateless cavity of the drive telescopic plate 521, with both ends of the spring 5211 fixedly connected to the movable end and the fixed end of the drive telescopic plate 521, respectively. The connecting pipe 522 is circular, with both ends communicating with the spray pipe 511 and the plateless cavity of the drive telescopic plate 521, respectively. An overflow valve 5221 is installed on the connecting pipe 522. The return pipe 523 is circular, with both ends communicating with the connecting pipe 522. The two ends of the return pipe 523 are located on either side of the overflow valve 5221, and a one-way valve 5231 is installed on the return pipe 523.

[0040] In use, the operator drives the drive motor 42 to work, which in turn drives the reciprocating screw 43 to rotate. The reciprocating screw 43 then drives the sliding baffle 41 to slide back and forth along the length of the dust collector 31. When the sliding baffle 41 slides to the isolation ventilation pipe 312, the drive motor 42, through the reciprocating screw 43, drives the sliding baffle 41 to press against the movable end of the drive telescopic plate 521. The spring 5211 is compressed, the volume of the plateless cavity of the drive telescopic plate 521 decreases, and the air is compressed to form high-pressure gas.

[0041] When the air pressure inside the plateless cavity of the drive telescopic plate 521 is higher than the preset opening pressure of the overflow valve 5221, the overflow valve 5221 is in the open state, and high-pressure air is injected into the spray pipe 511 through the connecting pipe 522. The nozzle 512 sprays airflow onto the bag 321. When the sliding baffle 41 slides away from the drive telescopic plate 521, the spring 5211 returns to its original position. The spring 5211 drives the movable end of the drive telescopic plate 521 to return to its original position, increasing the volume of the plateless cavity of the drive telescopic plate 521. A negative pressure is generated inside the plateless cavity of the drive telescopic plate 521, and outside air flows into the plateless cavity of the drive telescopic plate 521 through the nozzle 512, the spray pipe 511, the connecting pipe 522, and the return pipe 523. When the sliding baffle 41 isolates the connecting pipe 313, the drive motor 42 drives the sliding baffle 41 to squeeze the drive telescopic plate 521 on the other side through the reciprocating screw 43, and the nozzle 512 of another set of pulse cleaning components 5 sprays airflow onto the cloth bag 321.

[0042] The implementation principle of a high-gas area ventilation and dust removal device according to an embodiment of this application is as follows: In operation, the operator drives the fan 11 and the drive motor 42. The fan 11 draws dust-laden airflow from the coal mine roadway into the ventilation box 1. Multiple sets of spaced first baffles 21 and second baffles 22 form an "S"-shaped flow channel. The dust-laden airflow needs to frequently change its flow direction as it passes through. Large coal dust particles, due to inertia, cannot follow the airflow and will collide with the surfaces of the first baffles 21 and second baffles 22 and settle, achieving preliminary dust removal. The airflow after preliminary dust removal enters the first dust removal chamber through the ventilation pipe 312 or the second dust removal chamber through the connecting pipe 313. Secondary filtration is achieved through the filter bag 321. The filter bag 321 only allows airflow to pass through, while coal dust is intercepted on the outer surface of the filter bag 321. The purified airflow enters the outlet chamber and is discharged.

[0043] When the drive motor 42 is working, it drives the reciprocating screw 43 to rotate, and the reciprocating screw 43 drives the sliding baffle 41 to slide back and forth along the length of the dust collector 31. When the sliding baffle 41 slides to the isolation ventilation pipe 312, the drive motor 42 drives the sliding baffle 41 to press the movable end of the drive telescopic plate 521 through the reciprocating screw 43. The spring 5211 is in a compressed state, the volume of the plateless cavity of the drive telescopic plate 521 decreases, and the air is compressed to form high-pressure gas.

[0044] When the air pressure in the plateless cavity of the drive telescopic plate 521 is higher than the preset opening pressure of the overflow valve 5221, the overflow valve 5221 is in the open state, and high-pressure air is injected into the blow pipe 511 through the connecting pipe 522. The nozzle 512 sprays airflow onto the cloth bag 321. When the sliding baffle 41 slides away from the drive telescopic plate 521, the spring 5211 returns to its original position, driving the movable end of the drive telescopic plate 521 to return to its original position. A negative pressure is generated in the plateless cavity of the drive telescopic plate 521, and outside air flows into the plateless cavity of the drive telescopic plate 521 through the nozzle 512, the blow pipe 511, the connecting pipe 522, and the return pipe 523. When the sliding baffle 41 isolates the connecting pipe 313, the drive motor 42 drives the sliding baffle 41 to squeeze the drive telescopic plate 521 on the other side through the reciprocating screw 43, and the nozzle 512 of the other set of pulse cleaning components 5 sprays airflow onto the cloth bag 321.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A ventilation and dust removal device for high-gas areas, characterized in that: The system includes a ventilation box (1), a first dust removal component (2), a second dust removal component (3), an adjustment component (4), and a pulse cleaning component (5). The ventilation box (1) is horizontally arranged, and a fan (11) is installed at one end of the ventilation box (1). The first dust removal component (2) is located at the end of the ventilation box (1) away from the fan (11) and is used for preliminary dust removal of the air entering the ventilation box (1). The second dust removal component (3) is located inside the ventilation box (1) and is used for secondary dust removal of the air entering the ventilation box (1). The adjustment component (4) is located inside the ventilation box (1) and is used to adjust the working state of the second dust removal component (3). The pulse cleaning component (5) is located inside the ventilation box (1) and is used to clean the coal dust attached to the second dust removal component (3).

2. The ventilation and dust removal device for high-gas areas according to claim 1, characterized in that: The first dust removal component (2) includes a first folding plate (21) and a second folding plate (22); the first folding plate (21) is vertically disposed inside the ventilation box (1) and is fixedly connected to the ventilation box (1); the second folding plate (22) is vertically disposed on one side of the first folding plate (21) and is fixedly connected to the ventilation box (1); multiple sets of the first folding plate (21) and the second folding plate (22) are arranged at intervals along the length direction of the ventilation box (1).

3. The ventilation and dust removal device for high-gas areas according to claim 1, characterized in that: The second dust removal assembly (3) includes a dust removal box (31), a mounting plate (32), and a partition plate (33); the dust removal box (31) is fixedly installed inside the ventilation box (1), and an air outlet (311) is provided on one side of the dust removal box (31); a ventilation pipe (312) is inserted into one side of the dust removal box (31), and the ventilation pipe (312) communicates with the interior of the dust removal box (31); a connecting pipe (313) is inserted into the inner wall of the dust removal box (31), and the connecting pipe (313) communicates with the ventilation pipe (312); the mounting plate (32) is fixedly installed inside the dust removal box (31). Inside 31), the mounting plate (32) divides the interior of the dust collector (31) into an air inlet chamber and an air outlet chamber; multiple cloth bags (321) are fixedly installed on the mounting plate (32); the partition (33) is fixedly installed in the air inlet chamber of the dust collector (31), and its top end is fixedly connected to the mounting plate (32). The partition (33) divides the air inlet chamber of the dust collector (31) into a first dust collector chamber and a second dust collector chamber. One end of the ventilation pipe (312) is connected to the first dust collector chamber of the dust collector (31), and one end of the connecting pipe (313) is connected to the second dust collector chamber of the dust collector (31).

4. A ventilation and dust removal device for high-gas areas according to claim 3, characterized in that: The second dust removal component (3) also includes a dust guide plate (34); a cleaning port (12) is provided on one side of the ventilation box (1), and a cleaning door (13) is vertically arranged inside the cleaning port (12), and one end of the cleaning door (13) is rotatably connected to the ventilation box (1); a dust discharge port (314) is provided on one side of the dust removal box (31), and two sets of dust discharge ports (314) are provided, and are respectively located on both sides of the partition (33); the dust guide plate (34) is inclinedly arranged inside the dust removal box (31) and is fixedly connected to the dust removal box (31), and two sets of dust guide plates (34) are provided, and correspond one-to-one with the two sets of dust discharge ports (314).

5. A ventilation and dust removal device for high-gas areas according to claim 3, characterized in that: The adjusting assembly (4) includes a sliding baffle (41), a drive motor (42), a reciprocating screw (43), a first bellows (44), and a second bellows (45); the dust collector housing (31) has an adjusting groove (315); the ventilation pipe (312) has a first clearance hole (3121), and the connecting pipe (313) has a second clearance hole (3131), the second clearance hole (3131) and the first clearance hole (3121) are directly opposite each other; the sliding baffle (41) is inserted into the ventilation pipe (312), and one end is located in the adjusting groove (315), the sliding baffle (41) is slidably connected to the dust collector housing (31); the drive motor (42) is embedded in the... The inner wall of the adjusting groove (315); the reciprocating screw (43) is horizontally arranged in the adjusting groove (315) and fixedly connected to the output shaft of the drive motor (42), and the reciprocating screw (43) is threadedly connected to the sliding baffle (41); the first corrugated pipe (44) is sleeved on the reciprocating screw (43), and both ends are fixedly connected to the dust collector (31) and the sliding baffle (41) respectively; the second corrugated pipe (45) is located on the side of the sliding baffle (41) away from the first corrugated pipe (44), and is sleeved on the reciprocating screw (43), and both ends of the second corrugated pipe (45) are fixedly connected to the dust collector (31) and the sliding baffle (41) respectively.

6. A ventilation and dust removal device for high-gas areas according to claim 5, characterized in that: The pulse cleaning assembly (5) is provided in two sets, and is located on both sides of the partition (33). The pulse cleaning assembly (5) includes a cleaning part (51) and a driving part (52). The cleaning part (51) is located above the mounting plate (32) and is used to clean the cloth bag (321). Multiple sets of the cleaning part (51) are arranged at intervals along the length direction of the mounting plate (32). The driving part (52) is located inside the dust collector (31) and is used to drive the cleaning part (51) to work.

7. A ventilation and dust removal device for high-gas areas according to claim 6, characterized in that: The cleaning unit (51) includes a blow pipe (511) and a nozzle (512); the blow pipe (511) is horizontally arranged inside the dust collector (31) and located above the mounting plate (32), and the blow pipe (511) is fixedly connected to the dust collector (31); the nozzle (512) is installed on the blow pipe (511), and the air outlet is directly opposite the filter bag (321).

8. A ventilation and dust removal device for high-gas areas according to claim 7, characterized in that: The drive unit (52) includes a drive telescopic plate (521), a connecting pipe (522), and a return pipe (523); the drive telescopic plate (521) is vertically arranged on one side of the adjustment groove (315), and the fixed end is embedded in the inner side wall of the adjustment groove (315) away from the partition (33); the plateless cavity of the drive telescopic plate (521) is filled with air; a spring (5211) is provided in the plateless cavity of the drive telescopic plate (521), and the two ends of the spring (5211) are respectively connected to the drive... The movable end of the telescopic plate (521) is fixedly connected to the fixed end of the driving telescopic plate (521); the two ends of the connecting pipe (522) are respectively connected to the blow pipe (511) and the plateless cavity of the driving telescopic plate (521), and an overflow valve (5221) is installed on the connecting pipe (522); both ends of the return pipe (523) are connected to the connecting pipe (522), and both ends are located on both sides of the overflow valve (5221), and a one-way valve (5231) is installed on the return pipe (523).

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