Explosion-proof cloth bag dust removal system for coal gas production

Abstract

The invention discloses an anti-explosion cloth bag dust removal system for coal gas production, which comprises a plurality of cloth bag dust removal devices, a gas inlet pipe, a gas outlet pipe, a negative pressure anti-explosion pipe, a gas outlet connecting pipe, a pressure relief device, a gas inlet device, a negative pressure tank and an integrated controller, the air inlet pipe, the air outlet pipe and the negative pressure explosion-proof pipe are respectively connected with the corresponding bag dust removal devices through the air inlet device, the air outlet connecting pipe and the pressure relief device, the negative pressure tank is connected with the negative pressure explosion-proof pipe, and the integrated controller is electrically connected with the pressure relief device and the air inlet device; the explosion-proof cloth bag dust removal system for coal gas production is novel in structure, convenient and practical, the negative pressure tank and the cloth bag dust removal device are separated through the sealing device, high pressure generated by explosion can be rapidly reduced while the working stability of the cloth bag dust removal device is guaranteed, and the situation that the cloth bag dust removal device is damaged due to explosion is reduced.

Description

Technical Field

[0001] The present invention belongs to the field of explosion-proof bag dust collectors, and particularly relates to an explosion-proof bag dust removal system for gas production. Background Art

[0002] The working principle of a bag dust collector is based on filtering dust-containing gas through a bag. When the dust-containing gas enters the dust collector, it first undergoes preliminary treatment such as cooling and dehumidification in the pretreatment chamber to reduce the adhesion of dust particles. Subsequently, the gas enters the filtering chamber, where dust particles are intercepted by colliding with the fibers due to inertial force when bypassing the filter cloth fibers, and fine dust particles are separated by colliding with and contacting the fibers because the gaps between the fibers are smaller than the free path of the Brownian motion of gas molecules.

[0003] The explosion of a bag dust collector for coal chemical industry is a serious industrial safety problem. The reasons for the explosion of a bag dust collector for coal chemical industry are manifold, including unreasonable design, improper operation, equipment aging, dust characteristics, static electricity accumulation, and high-temperature gas.

[0004] To prevent the occurrence of similar accidents, effective preventive measures should be taken from aspects such as design, operation, maintenance, dust control, static electricity protection, gas temperature control, and installation of safety devices to reduce the occurrence of explosion accidents. Moreover, most traditional bag dust collectors are centrally arranged and generally use a single filtering box body, resulting in the need to overhaul the entire filter bag after an explosion, thus prolonging the equipment maintenance time. At the same time, the existing pressure relief valves are extremely prone to malfunction in a dust-free working environment at about 120 degrees, so an explosion-proof door generally needs to be equipped for pressure relief in special cases to avoid damage to the filtering box body in case of pressure relief valve malfunction. Therefore, there is an urgent need for an explosion-proof bag dust collector for gas production. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an explosion-proof bag dust removal system for gas production, which has a novel structure, is convenient and practical, isolates the negative pressure tank and the bag dust removal device through a closing device, can quickly reduce the high pressure generated by the explosion while ensuring the working stability of the bag dust removal device, and achieves the situation of reducing the damage of the bag dust removal device caused by the explosion.

[0006] An explosion-proof bag dust removal system for gas production, comprising a bag dust removal device, an intake pipe, an outlet pipe, a negative pressure explosion-proof pipe, an air outlet connecting pipe, a pressure relief device, an air intake device, a negative pressure tank and an integrated controller. A plurality of the bag dust removal devices are connected together in sequence. The intake pipe, the outlet pipe and the negative pressure explosion-proof pipe are respectively connected to the corresponding bag dust removal device through the air intake device, the air outlet connecting pipe and the pressure relief device. The negative pressure tank is connected to the negative pressure explosion-proof pipe. The integrated controller is electrically connected to the pressure relief device and the air intake device. The pressure relief device includes a pressure relief shut-off valve, a pressure relief pipe, a pressure relief ring, an adjusting device and a closing device. One end of the pressure relief pipe is connected to the negative pressure explosion-proof pipe through the pressure relief shut-off valve and the other end is connected to the pressure relief ring. One end of the pressure relief ring is connected to the bag dust removal device. The closing device is arranged inside one end and is used for sealing and pressure relief. The adjusting device is arranged inside the other end of the pressure relief ring and is used for adjusting the closing device.

[0007] Further, the closing device includes a directional rod, a central plate, an outer ring, a displacement ring, a guiding linear bearing, a guiding rod and a positioning plate. One end of the directional rod is connected to the central plate. A plurality of the displacement rings are sleeved and arranged between the central plate and the outer ring in sequence. A plurality of hanging ears are connected to both the central plate and the outer ring. The guiding linear bearing is connected to the hanging ears. One ends of a plurality of the guiding rods are respectively connected to the outer ring and the displacement ring, and the other ends pass through the corresponding guiding linear bearings and are connected to the positioning plate. Teeth cooperating with the adjusting device are provided on the directional rod.

[0008] Further, the adjusting device includes a fixing frame, a linear bearing, a gear, a bearing, an adjusting rotating shaft and a control handle. The fixing frame is installed inside the pressure relief ring and is connected to the linear bearing. The linear bearing is slidably connected to the directional rod. The adjusting rotating shaft is connected to the fixing frame through the bearing. One end of the adjusting rotating shaft is connected to the gear and the other end penetrates through the pressure relief ring and is connected to the control handle. A plurality of positioning bull's eyes are installed on the fixing frame. A positioning groove cooperating with the positioning bull's eyes is provided on the directional rod. An air flow sensor and a limit sensor cooperating with the directional rod are installed on the fixing frame.

[0009] Further, the adjusting rotating shaft includes a one-way bearing and a plurality of connecting rods. Adjacent connecting rods are connected through the one-way bearing.

[0010] Further, sealing rings are provided between the central plate and the displacement ring, between adjacent displacement rings and between the displacement ring and the outer ring. Sealing ring positioning grooves are provided on one sides of the central plate, the outer ring and the displacement ring close to the sealing rings.

[0011] Further, a damper cooperating with the directional rod is installed on the fixing frame.

[0012] Furthermore, the air intake device includes a connecting pipe, a conversion pipe, a dispersion box, an outlet box, a cut-off gate valve and an explosion-proof recoil plate. The conversion pipe is connected to the intake pipe through the connecting pipe. The outlet box is connected to the conversion pipe through the dispersion box. The dispersion box and the outlet box are arranged inside the bag dust collector. The cut-off gate valve is arranged between the connecting pipe and the conversion pipe. A plurality of explosion-proof recoil plates are sequentially arranged in the conversion pipe from top to bottom. The two ends of the upper side of the explosion-proof recoil plate are respectively hinged inside the conversion pipe and the lower side is matched with the upper side of the adjacent explosion-proof recoil plate. A plurality of exhaust holes are opened on both the dispersion box and the outlet box.

[0013] Furthermore, one side of the dispersion box and the outlet box provided with the exhaust holes is composed of a plurality of hinge plates. The two ends of the upper side of the hinge plate are hinged on the dispersion box or the outlet box.

[0014] Furthermore, the bag dust collector includes a bag filter and a fixing frame. The two bag filters are symmetrically arranged on the fixing frame.

[0015] Beneficial effects:

[0016] (1) For the explosion-proof bag dust removal system for gas production of the present invention, its structure is novel, convenient and practical. The negative pressure tank and the bag dust collector are separated by the closing device, which can ensure the working stability of the bag dust collector and quickly reduce the high pressure generated by the explosion, so as to reduce the damage of the bag dust collector caused by the explosion.

[0017] (2) For the explosion-proof bag dust removal system for gas production of the present invention, the friction of the guiding rod is increased by the damper, and the guiding rod is positioned by the bull's eye bead, so that the central plate will not move under the action of negative pressure. At the same time, the sensitivity of the closing device to monitor the explosion is improved, greatly reducing the potential safety hazards of the bag dust collector.

[0018] (3) For the explosion-proof bag dust removal system for gas production of the present invention, the scattered closing device is controlled to reset by the adjusting device, and the one-way bearing enables the gear to only adjust the guiding rod to reset and will not affect the opening of the closing device to communicate with the negative pressure tank, reducing the equipment maintenance time after the explosion.

[0019] (4) For the explosion-proof bag dust removal system for gas production of the present invention, the bag dust collector is separated from the intake pipe by the explosion-proof recoil plate, avoiding affecting another separately arranged bag dust collector through the intake pipe after the explosion, so as to reduce the property loss caused by the explosion.

[0020] (5) For the explosion-proof bag dust removal system for gas production of the present invention, the gas is fully dispersed by the dispersion box and the outlet box, avoiding the gas being concentratedly introduced into the bag dust collector, resulting in the dust being concentratedly attached to the bags of some bag dust collectors and affecting the filtering effect. Description of the drawings

[0021] Figure 1 It is a schematic structural diagram of an explosion-proof bag dust removal system;

[0022] Figure 2 It is a schematic structural diagram of a bag dust removal device;

[0023] Figure 3 It is a schematic structural diagram of a pressure relief device;

[0024] Figure 4 It is a schematic cross-sectional view of a regulating device;

[0025] Figure 5 It is a schematic structural diagram of a regulating device;

[0026] Figure 6 It is a schematic cross-sectional view of a closing device;

[0027] Figure 7 It is a schematic structural diagram of a closing device;

[0028] Figure 8 It is a schematic structural diagram of an air inlet device;

[0029] 1 - Bag dust removal device, 2 - Air inlet pipe, 3 - Air outlet pipe, 4 - Negative pressure explosion-proof pipe, 5 - Bag dust collector, 6 - Fixed frame, 7 - Air outlet connecting pipe, 8 - Pressure relief device, 81 - Pressure relief closing gate valve, 82 - Pressure relief pipe, 83 - Pressure relief ring, 84 - Regulating device, 85 - Closing device, 86 - Fixed frame, 87 - Linear bearing, 88 - Positioning bull's eye, 89 - Gear, 810 - Bearing, 811 - Regulating rotating shaft, 812 - One-way bearing, 813 - Connecting rod, 814 - Directional rod, 815 - Central plate, 816 - Outer ring, 817 - Displacement ring, 818 - Hanging ear, 819 - Guide linear bearing, 820 - Guide rod, 821 - Positioning plate, 9 - Air inlet device, 91 - Connecting pipe, 92 - Conversion pipe, 93 - Dispersion box, 94 - Export box, 95 - Cut-off gate valve, 96 - Explosion-proof anti-recoil plate. Detailed implementation manners

[0030] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0031] Embodiment 1

[0032] As Figures 1 to 8As shown in the figure; an explosion-proof bag dust removal system for gas production, comprising a bag dust removal device 1, an intake pipe 2, an outlet pipe 3, a negative pressure explosion-proof pipe 4, an air outlet connecting pipe 7, a pressure relief device 8, an air intake device 9, a negative pressure tank and an integrated controller. A plurality of said bag dust removal devices 1 are connected together in sequence. The intake pipe 2, the outlet pipe 3 and the negative pressure explosion-proof pipe 4 are respectively connected to the corresponding bag dust removal device 1 through the air intake device 9, the air outlet connecting pipe 7 and the pressure relief device 8. The negative pressure tank is connected to the negative pressure explosion-proof pipe 4. The integrated controller is electrically connected to the pressure relief device 8 and the air intake device 9. The pressure relief device 8 comprises a pressure relief shut-off valve 81, a pressure relief pipe 82, a pressure relief ring 83, an adjusting device 84 and a closing device 85. One end of the pressure relief pipe 82 is connected to the negative pressure explosion-proof pipe 4 through the pressure relief shut-off valve 81 and the other end is connected to the pressure relief ring 83. One end of the pressure relief ring 83 is connected to the bag dust removal device 1. The closing device 85 is arranged inside one end and is used for sealing and pressure relief. The adjusting device 84 is arranged inside the other end of the pressure relief ring 83 and is used for adjusting the closing device 85.

[0033] Among them, the bag dust removal device 1 is a prior art and will not be elaborated here again. Specifically, gas is introduced into the air intake device 9 through the intake pipe 2, and the gas is dispersed by the air intake device 9 and then introduced into the bag dust removal device 1 for filtration. The filtered gas is introduced into the outlet pipe 3 through the air outlet connecting pipe 7 and then exported through the outlet pipe 3. After an explosion occurs in the bag dust removal device 1, the pressure relief device 8 relieves the pressure of the bag dust removal device 1 to achieve the purpose of protecting the bag dust removal device 1, and the high-pressure gas is quickly sucked out through the negative pressure tank.

[0034] When the pressure relief device 8 works, the expanded gas in the bag dust removal device 1 acts on the closing device 85, pushing the closing device 85 to expand. After the closing device 85 expands, the high-pressure gas enters the negative pressure explosion-proof pipe 4 through the pressure relief ring 83 and the pressure relief pipe 82 and is introduced into the negative pressure tank, achieving the purpose of quickly discharging the high pressure in the bag dust removal device 1.

[0035] In another embodiment of the present invention, the closing device 85 comprises a directional rod 814, a central plate 815, an outer ring 816, a displacement ring 817, a guiding linear bearing 819, a guiding rod 820 and a positioning plate 821. One end of the directional rod 814 is connected to the central plate 815. A plurality of said displacement rings 817 are sequentially sleeved and arranged between the central plate 815 and the outer ring 816. A plurality of hanging ears 818 are connected to both the central plate 815 and the outer ring 816. The guiding linear bearing 819 is connected to the hanging ears 818. One ends of a plurality of said guiding rods 820 are respectively connected to the outer ring 816 and the displacement ring 817, and the other ends pass through the corresponding guiding linear bearings 819 and are connected to the positioning plate 821. Teeth matching with the adjusting device 84 are provided on the directional rod 814.

[0036] Specifically, the expanded gas in the bag dust collector 1 will push the central plate 815 and the outer ring 816. The central plate 815 will be pushed first. The central plate 815 drives the directional rod 814. At the same time, the guiding linear bearing 819 on the central plate 815 will drive synchronously and move, so that the guiding linear bearing 819 slides along the guiding rod 820 on the adjacent outer ring 816, achieving that the central plate 815 drives the positioning plate 821, the guiding rod 820, and the adjacent outer ring 816 to move in sequence. In this way, the adjacent outer rings 816 of the outer ring 816 are synchronously unfolded, achieving the purpose of unfolding several outer rings 816 and the central plate 815, so that the expanded gas generated by the explosion can pass through the closing device 85 and be quickly discharged.

[0037] In another embodiment of the present invention, the adjusting device 84 includes a fixed frame 86, a linear bearing 87, a gear 89, a bearing 810, an adjusting rotating shaft 811, and a control handle. The fixed frame 86 is installed in the pressure relief ring 83 and is connected to the linear bearing 87. The linear bearing 87 is slidably connected to the directional rod 814. The adjusting rotating shaft 811 is connected to the fixed frame 86 through the bearing 810. One end of the adjusting rotating shaft 811 is connected to the gear 89 and the other end penetrates through the pressure relief ring 83 and is connected to the control handle. A plurality of positioning bull's eyes 88 are installed on the fixed frame 86. Positioning grooves cooperating with the positioning bull's eyes 88 are provided on the directional rod 814. An air flow sensor and a limit sensor cooperating with the directional rod 814 are installed on the fixed frame 86.

[0038] Specifically, when resetting the closing device 85 after an explosion, by rotating the adjusting rotating shaft 811, the adjusting rotating shaft 811 drives the gear 89 to rotate. The gear 89 drives the teeth on the directional rod 814, so that the directional rod 814 moves. The directional rod 814 pushes the central plate 815, and the central plate 815 drives the outer ring 816 to gradually reset. The reset situation is determined through the hanging ear 818 to ensure the accuracy of the reset; the limit sensor is used to determine the movement of the directional rod 814 to ensure that the integrated controller receives the abnormal signal of the bag dust collector 1 in time, so as to control the intake device 9 to stop introducing gas.

[0039] In another embodiment of the present invention, the adjusting rotating shaft 811 includes a one-way bearing 812 and a plurality of connecting rods 813. Adjacent connecting rods 813 are connected through the one-way bearing 812.

[0040] Specifically, the one-way bearing 812 ensures that the gear 89 rotates in one direction, so that the gear 89 can drive the directional rod 814 to push the central plate 815 to reset. At the same time, it can ensure that the directional rod 814 moves in the reverse direction so that the central plate 815 can move and spread smoothly, ensuring that the closing device 85 can be unfolded smoothly.

[0041] In another embodiment of the present invention, sealing rings are provided between the central plate 815 and the displacement ring 817, between adjacent displacement rings 817, and between the displacement ring 817 and the outer ring 816; sealing ring positioning grooves are formed on one side of the central plate 815, the outer ring 816, and the displacement ring 817 close to the sealing rings; a damper cooperating with the guiding rod 814 is installed on the fixing bracket 86.

[0042] The sealing performance between the central plate 815 and the displacement ring 817, between adjacent displacement rings 817, and between the displacement ring 817 and the outer ring 816 is improved by the sealing rings; at the same time, the accurate positioning of the closing of the central plate 815 and the displacement ring 817, the closing of adjacent displacement rings 817, and the closing of the displacement ring 817 and the outer ring 816 is ensured through the sealing ring positioning grooves; the resistance of the movement of the guiding rod 814 is increased by the damper, avoiding the direct deployment of the closing device 85 when the negative pressure explosion-proof pipe 4 is under negative pressure, resulting in the malfunction of the closing device 85, and the influence of the negative pressure on the closing device 85 is reduced by the booster.

[0043] In another embodiment of the present invention, the air inlet device 9 includes a connecting pipe 91, a conversion pipe 92, a dispersion box 93, a lead-out box 94, a cut-off gate valve 95, and an explosion-proof anti-recoil plate 96. The conversion pipe 92 is connected to the intake pipe 2 through the connecting pipe 91. The lead-out box 94 is connected to the conversion pipe 92 through the dispersion box 93. The dispersion box 93 and the lead-out box 94 are arranged inside the bag dust collector 1. The cut-off gate valve 95 is arranged between the connecting pipe 91 and the conversion pipe 92. A plurality of explosion-proof anti-recoil plates 96 are sequentially arranged in the conversion pipe 92 from top to bottom. The two ends of the upper side of the explosion-proof anti-recoil plate 96 are respectively hinged inside the conversion pipe 92 and the lower side cooperates with the upper side of the adjacent explosion-proof anti-recoil plate 96; a plurality of exhaust holes are formed on both the dispersion box 93 and the lead-out box 94.

[0044] Specifically, the gas is sequentially introduced into the connecting pipe 91, the conversion pipe 92, the dispersion box 93, and the lead-out box 94 through the intake pipe 2, and is introduced into the bag dust collector 1 through the exhaust holes on the dispersion box 93 and the lead-out box 94; the high-speed introduced gas will push the explosion-proof anti-recoil plate 96 to unfold along the hinged side, enabling the gas to pass through the air inlet device 9 smoothly; when an explosion occurs, the high-pressure gas will act on the explosion-proof anti-recoil plate 96, causing the explosion-proof anti-recoil plate 96 to rotate in the reverse direction, and the lower side of the explosion-proof anti-recoil plate 96 will contact the upper side of the lower explosion-proof anti-recoil plate 96. In this way, a group of baffles are formed by the cooperation of a plurality of explosion-proof anti-recoil plates 96 to block the high-pressure gas. When the limit inductor senses an explosion, the cut-off gate valve 95 is synchronously opened to close the connecting pipe 91, avoiding the influence of the high-pressure gas on the other working bag dust collector 1.

[0045] In another embodiment of the present invention, one side of the dispersion box 93 and the outlet box 94 provided with the exhaust holes is composed of a plurality of hinge plates, and both ends of the upper side of the hinge plates are hinged to the dispersion box 93 or the outlet box 94; the bag dust removal device 1 includes a bag dust collector 5 and a fixing frame 6, and the two bag dust collectors 5 are symmetrically arranged on the fixing frame 6.

[0046] The air outlet on one side of the dispersion box 93 formed by a plurality of hinge plates can ensure the smoothness of gas export, and ensure the amount of gas entering the bag dust removal device 1 in case of blockage of the exhaust holes; through the symmetrically arranged bag dust collectors 5, the inlet pipe 2, the outlet pipe 3, and the negative pressure explosion-proof pipe 4 can be connected to the bag dust collectors 5 on both sides, improving the filtration capacity of the bag dust removal device 1 and shortening the designed length of the bag dust removal device 1.

[0047] The specific embodiments of the present invention have been described in detail above, but they are only examples, and the present invention is not limited to the above-described specific embodiments. For those skilled in the art, any equivalent modifications and substitutions to the present invention are also within the scope of the present invention. Therefore, all equivalent transformations and modifications made without departing from the spirit and scope of the present invention are covered by the present invention.

Claims

1. An explosion-proof bag dust removal system for gas production, characterized by: The invention comprises a bag dust removal device (1), an air inlet pipe (2), an air outlet pipe (3), a negative pressure explosion-proof pipe (4), an air outlet connecting pipe (7), a pressure relief device (8), an air inlet device (9), a negative pressure tank and an integrated controller. A plurality of the bag dust removal devices (1) are connected together in sequence. The air inlet pipe (2), the air outlet pipe (3) and the negative pressure explosion-proof pipe (4) are respectively connected to the corresponding bag dust removal device (1) through the air inlet device (9), the air outlet connecting pipe (7) and the pressure relief device (8). The negative pressure tank is connected to the negative pressure explosion-proof pipe (4). The integrated controller is electrically connected to the pressure relief device (8) and the air inlet device. The pressure relief device (8) comprises a pressure relief sealing gate valve (81), a pressure relief pipe (82), a pressure relief ring (83), an adjusting device (84) and a closing device (85); one end of the pressure relief pipe (82) is connected to the negative pressure explosion-proof pipe (4) through the pressure relief sealing gate valve (81) and the other end is connected to the pressure relief ring (83); one end of the pressure relief ring (83) is connected to the bag dust removal device (1); the closing device (85) is arranged in one end and is used for sealing and pressure relief; the adjusting device (84) is arranged in the other end of the pressure relief ring (83) and is used for adjusting the closing device (85).

2. An explosion-proof bag dust removal system for gas production as claimed in claim 1, characterized in that: The closing device (85) comprises an orientation rod (814), a center plate (815), an outer ring (816), a displacement ring (817), a guide linear bearing (819), a guide rod (820) and a positioning plate (821); one end of the orientation rod (814) is connected to the center plate (815); a plurality of displacement rings (817) are sequentially sleeved and arranged between the center plate (815) and the outer ring (816); a plurality of hanging ears (818) are connected to the center plate (815) and the outer ring (816); the guide linear bearing (819) is connected to the hanging ears (818); one end of a plurality of guide rods (820) is respectively connected to the outer ring (816) and the displacement ring (817) and the other end passes through the corresponding guide linear bearing (819) and is connected to the positioning plate (821); and a tooth matching with the adjustment device (84) is provided on the orientation rod (814).

3. An explosion-proof bag dust removal system for gas production as claimed in claim 2, characterized in that: The adjusting device (84) comprises a fixing frame (86), a linear bearing (87), a gear (89), a bearing (810), an adjusting shaft (811) and a control handle. The fixing frame (86) is installed in the pressure relief ring (83) and connected to the linear bearing (87). The linear bearing (87) is slidably connected to the directional rod (814). The adjusting shaft (811) is connected to the fixing frame (86) through the bearing (810). One end of the adjusting shaft (811) is connected to the gear (89) and the other end passes through the pressure relief ring (83) and is connected to the control handle. A plurality of positioning bull's eye balls (88) are installed on the fixing frame (86). A positioning groove cooperating with the positioning bull's eye balls (88) is provided on the directional rod (814). An airflow sensor and a limit sensor cooperating with the directional rod (814) are installed on the fixing frame (86).

4. An explosion-proof bag dust removal system for gas production as claimed in claim 3, characterized in that: The adjusting shaft (811) comprises a one-way bearing (812) and a plurality of connecting rods (813), and adjacent connecting rods (813) are connected via the one-way bearing (812).

5. An explosion-proof bag dust removal system for gas production as claimed in claim 4, characterized in that: Sealing rings are provided between the center plate (815) and the displacement ring (817), between adjacent displacement rings (817), and between the displacement ring (817) and the outer ring (816); and sealing ring positioning grooves are provided on the sides of the center plate (815), the outer ring (816), and the displacement ring (817) close to the sealing ring.

6. An explosion-proof bag dust removal system for gas production as claimed in claim 5, characterized in that: A damper matched with the directional rod (814) is installed on the fixing frame (86).

7. An explosion-proof bag dust removal system for gas production according to claim 1 or 6, characterized in that: The air intake device (9) comprises a connecting pipe (91), a conversion pipe (92), a dispersion box (93), an outlet box (94), a shutoff gate valve (95) and an explosion-proof recoil plate (96). The conversion pipe (92) is connected to the air intake pipe (2) through the connecting pipe (91), and the outlet box (94) is connected to the conversion pipe (92) through the dispersion box (93). The dispersion box (93) and the outlet box (94) are arranged in the bag dust removal device (1). The shutoff gate valve (95) is arranged between the connecting pipe (91) and the conversion pipe (92). A plurality of explosion-proof recoil plates (96) are arranged in sequence from top to bottom in the conversion pipe (92). The two ends of the upper side of the explosion-proof recoil plate (96) are respectively hinged in the conversion pipe (92) and the lower side cooperates with the upper side of the adjacent explosion-proof recoil plate (96). The dispersion box (93) and the outlet box (94) are both provided with a plurality of exhaust holes.

8. An explosion-proof bag dust removal system for gas production as claimed in claim 7, characterized in that: One side of the dispersion box (93) and the outlet box (94) provided with the exhaust holes is composed of a plurality of hinged plates, and the two ends of the upper side of the hinged plates are hinged on the dispersion box (93) or the outlet box (94).

9. An explosion-proof bag dust removal system for gas production as claimed in claim 8, characterized in that: The bag dust removal device (1) comprises a bag dust collector (5) and a fixing frame (6), and the two bag dust collectors (5) are symmetrically arranged on the fixing frame (6).

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