Hydrogen sulfide treatment device for highway gas tunnel

Abstract

The invention belongs to the technical field of hydrogen sulfide separation treatment equipment, and particularly relates to a highway gas tunnel hydrogen sulfide treatment device which comprises a U-shaped shell and a treatment box, and universal wheels are fixedly connected to the four corners of the bottom end of the U-shaped shell. The highway gas tunnel hydrogen sulfide treatment device has multiple functions, can monitor hydrogen sulfide in real time, circulate tunnel air, treat construction dust, early warn in time and collect and treat hydrogen sulfide, can completely treat hydrogen sulfide and recycle elemental sulfur, and has the advantages of environmental protection, environmental protection and the like. Meanwhile, the environmental interference resistance and the monitoring sensitivity of the hydrogen sulfide sensor are improved, so that hydrogen sulfide treatment is more timely, the safety of constructors is guaranteed, the reliability, the effect and the environmental protection performance of the device for treating hydrogen sulfide are enhanced, and the space occupancy rate of the hydrogen sulfide treatment device in the highway gas tunnel can be reduced through the split design; interference of the device on highway gas tunnel construction is avoided, and convenience of highway gas tunnel construction is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of hydrogen sulfide separation and treatment equipment, and in particular relates to a device for treating hydrogen sulfide in a highway gas tunnel. Background Art

[0002] During the excavation of highway gas tunnels, hydrogen sulfide is released mainly due to encountering sulfide-containing (such as pyrite) strata, which reacts with water and air to produce hydrogen sulfide. Hydrogen sulfide is extremely harmful to the human body. It is a highly toxic gas. At low concentrations, it irritates the eyes, nose, throat and other respiratory organs, causing symptoms such as coughing, tears, and eye pain. High concentrations can cause respiratory paralysis, causing people to lose consciousness for a short time or even die. Hydrogen sulfide is corrosive to construction equipment and will react with metals to generate metal sulfides, damaging parts of excavators, ventilation equipment, etc., shortening equipment life and increasing maintenance costs. Therefore, during the construction of highway gas tunnels, it is necessary to use professional equipment to treat hydrogen sulfide. For example, the patent authorization announcement number is CN117582783B, which discloses a device and method for treating hydrogen sulfide in a highway gas tunnel.

[0003] The existing highway gas tunnel treatment hydrogen sulfide device has the following problems when in use: First, there are serious deficiencies in the timeliness of hydrogen sulfide monitoring, which directly leads to delays in subsequent hydrogen sulfide treatment. For example, during the use of the device, highway gas tunnel construction workers often start assembling the device for hydrogen sulfide treatment only after they have become physically unwell due to the hydrogen sulfide generated during construction. During this process, the workers continue to be exposed to the hydrogen sulfide environment, which not only poses a threat to the life safety of the workers, reduces the reliability of the device, but also seriously affects the treatment effect of hydrogen sulfide. Secondly, the device has defects in terms of space occupation. After the device is assembled, it is placed in the internal construction area of ​​the highway gas tunnel, occupying a large amount of tunnel space, causing obvious interference to the tunnel construction, and greatly affecting the convenience of highway gas tunnel construction; In addition, the treatment method adopted by the device to dissolve hydrogen sulfide by spraying has the problem of incomplete treatment. The water treated in this way still contains hydrogen sulfide. If it is discharged directly, it is very likely to cause environmental pollution. Therefore, other equipment is needed to treat the water containing hydrogen sulfide. This series of problems seriously affects the effect and reliability of hydrogen sulfide treatment of the highway gas tunnel hydrogen sulfide treatment device, as well as the environmental performance of the device.

[0004] Therefore, we propose a highway gas tunnel treatment hydrogen sulfide device to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a device for treating hydrogen sulfide in a highway gas tunnel in view of the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a device for treating hydrogen sulfide in a highway gas tunnel, comprising a U-shaped shell and a treatment box, wherein the four corners of the bottom end of the U-shaped shell are fixedly connected with universal wheels, the inner wall of the bottom end of the U-shaped shell is fixedly connected with a suction fan, the air outlet end of the suction fan is fixedly connected with an air pipe for connecting to the treatment box, the air inlet end of the suction fan is fixedly connected with a bent pipe, the air inlet end of the bent pipe passes through the top end of the U-shaped shell, and is fixedly connected with an air inlet mechanism; The pipe wall of the curved pipe is fixedly connected to a hydrogen sulfide detection mechanism, and the outer wall of the U-shaped housing is fixedly connected to an audible and visual alarm and a first PLC controller; The inner wall of the treatment box is fixedly connected with a transverse partition, a first vertical partition and a second vertical partition, the bottom end of the first vertical partition and the top end of the second vertical partition are fixedly connected to the outer wall of the transverse partition, and the transverse partition, the first vertical partition and the second vertical partition divide the internal cavity of the treatment box into a wind speed sensing area, a dust removal area, a hydrogen sulfide treatment area and a hydrogen peroxide storage area; The outer wall of the diaphragm located in the wind speed sensing area is fixedly connected with a wind speed sensor, the detection end of the wind speed sensor is located outside the air outlet end of the air pipe, and the upper surface of the processing box is fixedly connected with a second PLC controller; A dust reduction mechanism is provided inside the dust removal area, a liquid replenishment mechanism is provided inside the hydrogen peroxide storage area, and a treatment mechanism is provided inside the hydrogen sulfide treatment area.

[0007] In the above-mentioned device for treating hydrogen sulfide in a highway gas tunnel, the air intake mechanism includes a first sealing bearing fixedly connected to the inner wall of the air intake end of the curved pipe, the inner wall of the first sealing bearing is fixedly connected to an arc tube, the bottom end of the arc tube is fixedly connected to an external gear, the upper surface of the U-shaped outer shell is fixedly connected to a limit frame, and the inner wall of the limit frame is movably connected to a rack meshing with the external gear.

[0008] In the above-mentioned device for treating hydrogen sulfide in a highway gas tunnel, the hydrogen sulfide detection mechanism includes a standard gas cylinder fixedly connected to the outer wall of the bent pipe, the inner wall of the standard gas cylinder is fixedly connected to a multi-porous ceramic filter plate, the air inlet side of the multi-porous ceramic filter plate is fixedly connected to a sponge block, the outer end of the standard gas cylinder is provided with a fixed through hole, and the hole wall of the fixed through hole is fixedly connected to a first electric push rod, the movable end of the first electric push rod is fixedly connected to a sealing piston block, the outer wall of the sealing piston block is sealingly and movably connected to the inner wall of the standard gas cylinder, the outer wall of the sealing piston block is provided with a fixed through hole, and the hole wall of the fixed through hole is fixedly connected to a hydrogen sulfide sensor, the outer wall of the standard gas cylinder is provided with a threading hole matched with a data line of the hydrogen sulfide sensor, and the hole wall of the threading hole is movably connected to a connecting bent rod, the top end of the connecting bent rod is fixedly connected to the side end of the rack, and the bottom end of the connecting bent rod is fixedly connected to the outer wall of the sealing piston block.

[0009] In the above-mentioned device for treating hydrogen sulfide in a highway gas tunnel, the dust reduction mechanism includes a composite dust filter cartridge, both ends of the composite dust filter cartridge are fixedly connected with second sealed bearings, the outer walls of the outer rings of the two second sealed bearings are respectively fixedly connected with the inner wall of the treatment box and the outer wall of the second vertical partition, the outer wall of the second vertical partition located at the composite dust filter cartridge is fixedly embedded with a plurality of air guide one-way valves, the outer wall of the composite dust filter cartridge is fixedly sleeved with a connecting gear ring, the bottom end of the transverse partition is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with A transmission gear meshed with the outer wall of the connecting gear ring, the inner wall of the composite dust filter cartridge is movably connected with a first scraper ring, the outer wall of the processing box is fixedly embedded with two sealing sleeves, the inner walls of the two sealing sleeves are sealingly and slidably connected with a U-shaped connecting rod, the side end of the U-shaped connecting rod is fixedly connected to the outer wall of the first scraper ring, the outer wall of the processing box is fixedly embedded with a second electric push rod, the moving end of the second electric push rod is fixedly connected to the rod wall of the U-shaped connecting rod, the bottom end of the processing box is provided with a dust exhaust hole, and the hole wall of the dust exhaust hole is fixedly threaded with a sealing plug.

[0010] In the above-mentioned device for treating hydrogen sulfide in a highway gas tunnel, the liquid replenishing mechanism includes a normally closed one-way solenoid valve fixedly connected to the bottom end of the first vertical partition, the interior of the hydrogen peroxide storage area is filled with a hydrogen peroxide layer, the upper surface of the treatment box is fixedly connected to a one-way air pump, the air outlet end of the one-way air pump is fixedly connected to a connecting conduit, the bottom end of the connecting conduit passes through the inner wall of the treatment box and is connected to the cavity of the hydrogen peroxide storage area, the upper surface of the treatment box located in the hydrogen peroxide storage area is provided with a liquid replenishing hole, and the hole wall of the liquid replenishing hole is connected to a sealing cover.

[0011] In the above-mentioned device for treating hydrogen sulfide in a highway gas tunnel, the treatment mechanism includes a horizontal plate, the side end of which is fixedly connected to the outer wall of the first vertical partition, the bottom end of the horizontal plate is provided with two fixing holes, and the hole walls of the two fixing holes are respectively fixedly connected with a liquid level sensor and a hydrogen sulfide concentration detection sensor, an exhaust check valve is fixedly embedded on the upper surface of the horizontal partition, the interior of the hydrogen sulfide treatment area is filled with an absorption water layer, the outer wall of the treatment box located in the hydrogen sulfide treatment area is fixedly connected to a recovery cylinder, and the inner end outer wall of the recovery cylinder is fixedly connected to A fixing ring is connected, the inner wall of the fixing ring is fixedly connected to a micro water pump, the liquid outlet end of the micro water pump is fixedly connected to a liquid guide one-way valve, the outer wall of the outer end of the recovery cylinder is fixedly connected to a return pipe, the liquid outlet end of the return pipe is fixedly connected to a drainage one-way valve, the liquid outlet end of the drainage one-way valve passes through the inner wall of the treatment box, the side end of the recovery cylinder is threadedly connected to a cylinder cover, the inner wall of the cylinder cover is fixedly connected to a connecting block, the side end of the connecting block is fixedly connected to a ceramic filter plate, and the side wall of the ceramic filter plate is sealed and movably connected to the inner wall of the recovery cylinder.

[0012] In the above-mentioned device for treating hydrogen sulfide in a highway gas tunnel, the outer wall of the ceramic filter plate is fixedly connected to two extension rods, the side ends of the two extension rods are commonly fixedly connected to a second scraper ring, the outer wall of the second scraper ring is in active contact with the inner wall of the recovery cylinder, and the tube wall of the hydrogen sulfide concentration detection sensor is fixedly sleeved with a bubble breaking mesh plate.

[0013] In the above-mentioned highway gas tunnel hydrogen sulfide treatment device, the top of the treatment box is fixedly connected with a U-shaped cover for protecting the second PLC controller, and the outer wall of the treatment box located in the hydrogen sulfide treatment area is fixedly connected with a discharge pipe joint and a water replenishment solenoid valve.

[0014] Compared with the existing technology, the advantages of a highway gas tunnel treatment hydrogen sulfide device are: By setting up the U-shaped shell, air pipe and treatment box, when the highway gas tunnel is under construction, the U-shaped shell is arranged at the construction position through the universal wheels, and the treatment box is arranged outside the tunnel, and the position of the treatment box will not affect the use of tunnel construction equipment. At the same time, the suction fan at the U-shaped shell is connected to the wind speed sensing area of ​​the treatment box through the air pipe. The mechanism can reduce the space occupancy rate of the hydrogen sulfide treatment device inside the highway gas tunnel through the split design, avoid the hydrogen sulfide treatment device from interfering with the highway gas tunnel construction, and ensure the convenience of highway gas tunnel construction.

[0015] Through the set suction fan, air intake mechanism and hydrogen sulfide detection mechanism, the suction fan is started by the first PLC controller, and the moving end of the first electric push rod is controlled to reciprocate and extend. The suction fan transports the air at the tunnel construction site to the treatment box for treatment through the air intake mechanism. At the same time, the hydrogen sulfide detection mechanism can detect hydrogen sulfide in the air sucked by the air intake mechanism, and during the detection process, the hydrogen sulfide detection mechanism can remove the interference of dust and moisture in the air on the detection result. Then the hydrogen sulfide sensor in the standard gas cylinder will detect whether the air in the standard gas cylinder contains hydrogen sulfide, and the hydrogen sulfide sensor sends an electrical signal To the first PLC controller, the first PLC controller controls the sound and light alarm according to the electrical signal, reminding the workers in the tunnel to evacuate in time to avoid danger and ensure personal safety. This mechanism enables the highway gas tunnel treatment hydrogen sulfide treatment device to have the functions of real-time monitoring of hydrogen sulfide, air circulation in the tunnel, and timely early warning and collection and treatment of hydrogen sulfide, and also improves the ability of the hydrogen sulfide sensor to resist environmental interference, and improves the sensitivity of hydrogen sulfide monitoring, further improves the timeliness of hydrogen sulfide treatment, which can not only improve the personal safety of construction workers in the tunnel, but also improve the reliability and effect of the device in treating hydrogen sulfide.

[0016] Through the dust reduction mechanism, when the air pipe guides the air transported by the suction fan into the wind speed sensing area of ​​the processing box, regardless of whether the air contains hydrogen sulfide, the air enters the composite dust filter cartridge through the air guide one-way valve, and at the same time, the second PLC controller controls the drive motor to start, and the drive motor rotates the composite dust filter cartridge on the second sealing bearing through the transmission gear and the connecting gear ring, so as to avoid the composite dust filter cartridge being blocked by continuous dust accumulation at the same position, and the dust in the air is intercepted by the composite dust filter cartridge, and the filtered air enters the absorption water layer through the exhaust one-way valve for water liquid sedimentation purification, and finally the clean air is discharged from the exhaust pipe joint. This mechanism enables the device to have the function of construction dust treatment and improves the environmental protection performance of the device.

[0017] 4. Through the provided rehydration mechanism and treatment mechanism, when the air containing hydrogen sulfide is transported to the absorption water layer in the hydrogen sulfide treatment area through the exhaust one-way valve, the hydrogen sulfide in the air quickly dissolves in the water of the absorption water layer, and at this time, the actual power of the suction fan increases with the increase of hydrogen sulfide concentration, and then the wind speed value detected by the wind speed sensor also exceeds the hydrogen sulfide treatment threshold preset by the second PLC controller. At this time, the second PLC controller controls the treatment mechanism and the rehydration mechanism to treat the hydrogen sulfide in the absorption water layer and separate the sulfur element in the hydrogen sulfide. In order to prevent hydrogen sulfide from endangering the health of construction workers, elemental sulfur and water will be produced after the reaction between hydrogen peroxide and hydrogen sulfide in the replenishing mechanism. The separated elemental sulfur will be transported to the recovery cylinder through the liquid guide one-way valve by the micro water pump along with the absorbed water liquid layer, and then the elemental sulfur will be intercepted and recovered by the ceramic filter plate for reuse. This mechanism enables the highway gas tunnel hydrogen sulfide treatment device to not only have the function of completely treating hydrogen sulfide, but also has the ability to recover and reuse elemental sulfur after hydrogen sulfide treatment, which can not only improve the effect and reliability of the device in treating hydrogen sulfide, but also improve the environmental performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a highway gas tunnel treatment hydrogen sulfide device provided by the present invention; Figure 2 It is a structural schematic diagram of the air intake mechanism part of a highway gas tunnel treatment hydrogen sulfide device provided by the present invention; Figure 3 It is a schematic diagram of the structure inside a standard gas cylinder in a highway gas tunnel treatment hydrogen sulfide device provided by the present invention; Figure 4 It is a structural schematic diagram of the second vertical partition part of a highway gas tunnel hydrogen sulfide treatment device provided by the present invention; Figure 5 It is a structural schematic diagram of a driving motor part of a highway gas tunnel hydrogen sulfide treatment device provided by the present invention; Figure 6 It is a structural schematic diagram of a treatment mechanism in a device for treating hydrogen sulfide in a highway gas tunnel provided by the present invention; Figure 7 It is a structural schematic diagram of a composite dust filter cartridge part in a highway gas tunnel hydrogen sulfide treatment device provided by the present invention; Figure 8 The present invention provides a schematic structural diagram of an external gear portion of a device for treating hydrogen sulfide in a highway gas tunnel.

[0019] In the figure: 1 U-shaped shell, 2 treatment box, 3 universal wheel, 4 air intake mechanism, 41 first sealed bearing, 42 arc tube, 43 external gear, 44 limit frame, 45 rack, 5 hydrogen sulfide detection mechanism, 51 standard gas cylinder, 52 multi-porous ceramic filter plate, 53 sponge block, 54 first electric push rod, 55 sealed piston block, 56 hydrogen sulfide sensor, 57 threading hole, 58 connecting bent rod, 6 dust suppression mechanism, 61 composite dust filter cylinder, 62 second sealed bearing, 63 air guide one-way valve, 64 connecting gear ring, 65 drive motor, 66 transmission gear, 67 first scraper ring, 68 sealed shaft sleeve, 69 U-shaped connecting rod, 610 second electric push rod, 611 sealing plug, 7 liquid replenishing mechanism, 71 normally closed one-way solenoid valve, 72 hydrogen peroxide layer, 73 one-way air pump, 74 connecting conduit, 75 sealing cover, 8 Treatment mechanism, 81 horizontal plate, 82 liquid level sensor, 83 hydrogen sulfide concentration detection sensor, 84 exhaust check valve, 85 absorption water layer, 86 recovery cylinder, 87 fixing ring, 88 micro water pump, 89 liquid guide check valve, 810 return pipe, 811 drainage check valve, 812 cylinder cover, 813 connecting block, 814 ceramic filter plate, 9 U-shaped cover plate, 10 suction fan, 11 air pipe, 12 elbow, 13 sound and light alarm, 14 first PLC controller, 15 horizontal partition, 16 first vertical partition, 17 second vertical partition, 18 wind speed sensing area, 19 dust removal area, 20 hydrogen sulfide treatment area, 21 hydrogen peroxide storage area, 22 wind speed sensor, 23 second PLC controller, 24 extension rod, 25 second scraper ring, 26 bubble breaking mesh plate, 27 discharge pipe joint, 28 water replenishment solenoid valve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1-Figure 8As shown, a device for treating hydrogen sulfide in a highway gas tunnel comprises a U-shaped shell 1 and a treatment box 2. The top of the treatment box 2 is fixedly connected with a U-shaped cover plate 9 for protecting a second PLC controller 23. The outer wall of the treatment box 2 located in the hydrogen sulfide treatment area is fixedly connected with a discharge pipe joint 27 and a water replenishment solenoid valve 28. Universal wheels 3 are fixedly connected at the four corners of the bottom end of the U-shaped shell 1. A suction fan 10 is fixedly connected to the inner wall of the bottom end of the U-shaped shell 1. The air outlet end of the suction fan 10 is fixedly connected with an air pipe 11 for connecting to the treatment box 2. The air inlet end of the suction fan 10 is fixedly connected with a bend pipe 12. The air inlet end of the curved pipe 12 passes through the top of the U-shaped shell 1 and is fixedly connected to the air inlet mechanism 4. The air inlet mechanism 4 includes a first sealing bearing 41 fixedly connected to the inner wall of the air inlet end of the curved pipe 12. The inner wall of the first sealing bearing 41 is fixedly connected to an arc tube 42. The bottom end of the arc tube 42 is fixedly connected to an external gear 43. The upper surface of the U-shaped shell 1 is fixedly connected to a limit frame 44. The inner wall of the limit frame 44 is movably connected to a rack 45 meshing with the external gear 43. The swing of the arc tube 42 can expand the air intake range and can more efficiently treat the hydrogen sulfide released in the tunnel due to construction.

[0022] The pipe wall of the curved pipe 12 is fixedly connected with a hydrogen sulfide detection mechanism 5, and the hydrogen sulfide detection mechanism 5 includes a standard gas cylinder 51 fixedly connected with the outer wall of the curved pipe 12, and the inner wall of the standard gas cylinder 51 is fixedly connected with a microporous ceramic filter plate 52, and the air inlet side of the microporous ceramic filter plate 52 is fixedly connected with a sponge block 53, and the outer end of the standard gas cylinder 51 is provided with a fixed through hole, and the hole wall of the fixed through hole is fixedly connected with a first electric push rod 54, and the movable end of the first electric push rod 54 is fixedly connected with a sealing piston block 55, and the outer wall of the sealing piston block 55 is sealed and movably connected with the inner wall of the standard gas cylinder 51, and the outer wall of the sealing piston block 55 is provided with a fixed through hole, and the hole wall of the fixed through hole is fixedly connected with a hydrogen sulfide detection mechanism 55. The hydrogen sulfide sensor 56 and the outer wall of the standard gas cylinder 51 are provided with a threading hole 57 which matches the data line of the hydrogen sulfide sensor 56, and the hole wall of the threading hole 57 is movably connected with a connecting bent rod 58, the top end of the connecting bent rod 58 is fixedly connected to the side end of the rack 45, and the bottom end of the connecting bent rod 58 is fixedly connected to the outer wall of the sealing piston block 55. This mechanism enables the device to have the functions of timely early warning and collection and treatment of hydrogen sulfide, and improves the ability of the hydrogen sulfide sensor 56 to resist environmental interference, and improves the sensitivity of hydrogen sulfide monitoring, further improves the timeliness of hydrogen sulfide treatment, which can not only improve the personal safety of construction personnel in the tunnel, but also improve the reliability and effect of the device in treating hydrogen sulfide.

[0023] The outer wall of the U-shaped housing 1 is fixedly connected with an audible and visual alarm 13 and a first PLC controller 14, the inner wall of the processing box 2 is fixedly connected with a transverse partition 15, a first vertical partition 16 and a second vertical partition 17, the bottom end of the first vertical partition 16 and the top end of the second vertical partition 17 are fixedly connected to the outer wall of the transverse partition 15, the transverse partition 15, the first vertical partition 16 and the second vertical partition 17 divide the internal cavity of the processing box 2 into a wind speed sensing area 18, a dust removal area 19, a hydrogen sulfide treatment area 20 and a hydrogen peroxide storage area 21, the outer wall of the transverse partition 15 located in the wind speed sensing area 18 is fixedly connected with a wind speed sensor 22, the detection end of the wind speed sensor 22 is located outside the air outlet end of the air pipe 11, and the upper surface of the processing box 2 is fixedly connected with a second PLC controller 23; A dust removal mechanism 6 is provided inside the dust removal area 19, and the dust removal mechanism 6 includes a composite dust filter cartridge 61, and both ends of the composite dust filter cartridge 61 are fixedly connected to second sealed bearings 62, and the outer walls of the outer rings of the two second sealed bearings 62 are respectively fixedly connected to the inner wall of the processing box 2 and the outer wall of the second vertical partition 17, and the outer wall of the second vertical partition 17 located at the composite dust filter cartridge 61 is fixedly embedded with a plurality of air guide one-way valves 63, and the outer wall of the composite dust filter cartridge 61 is fixedly sleeved with a connecting gear ring 64, and the bottom end of the transverse partition 15 is fixedly connected to a driving motor 65, and the output end of the driving motor 65 is fixedly connected to a transmission gear 6 meshing with the outer wall of the connecting gear ring 64. 6. The inner wall of the composite dust filter cartridge 61 is movably connected with a first scraper ring 67, and the outer wall of the processing box 2 is fixedly embedded with two sealing sleeves 68. The inner walls of the two sealing sleeves 68 are sealingly and slidably connected with a U-shaped connecting rod 69. The side ends of the U-shaped connecting rod 69 are fixedly connected to the outer wall of the first scraper ring 67. The outer wall of the processing box 2 is fixedly embedded with a second electric push rod 610, and the moving end of the second electric push rod 610 is fixedly connected to the rod wall of the U-shaped connecting rod 69. A dust exhaust hole is opened at the bottom end of the processing box 2, and a sealing plug 611 is fixedly threadedly connected to the hole wall of the dust exhaust hole. This mechanism enables the device to have the function of construction dust treatment and improves the environmental protection performance of the device.

[0024] A liquid replenishing mechanism 7 is provided inside the hydrogen peroxide storage area 21, and the liquid replenishing mechanism 7 includes a normally closed one-way solenoid valve 71 fixedly connected to the bottom end of the first vertical partition 16. The interior of the hydrogen peroxide storage area 21 is filled with a hydrogen peroxide layer 72. A one-way air pump 73 is fixedly connected to the upper surface of the processing box 2, and a connecting conduit 74 is fixedly connected to the air outlet end of the one-way air pump 73. The bottom end of the connecting conduit 74 passes through the inner wall of the processing box 2 and is connected to the cavity of the hydrogen peroxide storage area 21. A liquid replenishing hole is opened on the upper surface of the processing box 2 located in the hydrogen peroxide storage area 21, and a sealing cover 75 is connected to the hole wall of the liquid replenishing hole. The liquid replenishing mechanism 7 adopts a sealing structure to store hydrogen peroxide to prevent the hydrogen peroxide from being ineffective due to long-term storage.

[0025] A treatment mechanism 8 is provided inside the hydrogen sulfide treatment area 20, and the treatment mechanism 8 includes a transverse plate 81, and the side end of the transverse plate 81 is fixedly connected to the outer wall of the first vertical partition 16, and two fixing holes are provided at the bottom end of the transverse plate 81, and the hole walls of the two fixing holes are respectively fixedly connected with a liquid level sensor 82 and a hydrogen sulfide concentration detection sensor 83, an exhaust one-way valve 84 is fixedly embedded on the upper surface of the transverse partition 15, and the interior of the hydrogen sulfide treatment area 20 is filled with an absorption water layer 85, and the outer wall of the treatment box 2 located in the hydrogen sulfide treatment area 20 is fixedly connected to a recovery cylinder 86, and the inner side end outer wall of the recovery cylinder 86 is fixedly connected to a fixing ring 87, and the inner wall of the fixing ring 87 is fixedly connected to a micro water pump 88, and the liquid outlet end of the micro water pump 88 is fixedly connected to a liquid guide one-way valve 89, and the outer side end outer wall of the recovery cylinder 86 is fixedly connected to a return pipe 810, and the liquid outlet end of the return pipe 810 is fixedly connected to a drainage one-way valve 811, and the drainage The liquid outlet end of the one-way valve 811 passes through the inner wall of the processing box 2, and the side end of the recovery cylinder 86 is threadedly connected to the cylinder cover 812, and the inner wall of the cylinder cover 812 is fixedly connected to the connecting block 813, and the side end of the connecting block 813 is fixedly connected to the ceramic filter plate 814, and the side wall of the ceramic filter plate 814 is sealed and movably connected to the inner wall of the recovery cylinder 86. The outer wall of the ceramic filter plate 814 is fixedly connected to two extension rods 24, and the side ends of the two extension rods 24 are commonly fixedly connected to the second scraper ring 25, and the outer wall of the second scraper ring 25 is movably contacted with the inner wall of the recovery cylinder 86. The pipe wall of the hydrogen sulfide concentration detection sensor 83 is fixedly sleeved with a bubble breaking mesh plate 26. This mechanism enables the highway gas tunnel hydrogen sulfide treatment device not only to have the function of completely treating hydrogen sulfide, but also to have the ability to recover and reuse elemental sulfur after hydrogen sulfide treatment. It can not only improve the effect and reliability of the device in treating hydrogen sulfide, but also improve the environmental protection performance of the device.

[0026] The first electric push rod 54, the suction fan 10 and the sound and light alarm 13 are all electrically connected to the output end of the first PLC controller 14 through wires, the hydrogen sulfide sensor 56 is electrically connected to the input end of the first PLC controller 14 through wires, the drive motor 65, the second electric push rod 610, the normally closed one-way solenoid valve 71, the one-way air pump 73 and the micro water pump 88 are all electrically connected to the output end of the second PLC controller 23 through wires, the wind speed sensor 22, the hydrogen sulfide concentration detection sensor 83 and the liquid level sensor 82 are all electrically connected to the input end of the second PLC controller 23 through wires, the hydrogen sulfide concentration detection sensor 83 and the hydrogen sulfide sensor 56 are both electrochemical sensor elements, and the working principles are also the same. The above-mentioned power-on equipment and electrical connections are all existing technologies and will not be repeated here.

[0027] The operating principle of the present invention is described as follows: when a highway gas tunnel is being constructed, the U-shaped housing 1 is arranged at the construction location through the universal wheels 3, and the treatment box 2 is arranged outside the tunnel, and the location of the treatment box 2 does not affect the use of the tunnel construction equipment. At the same time, the suction fan 10 at the U-shaped housing 1 is connected to the wind speed sensing area 18 of the treatment box 2 through the air pipe 11. In addition, the length of the air pipe 11 can be extended by assembling a pipe and a pipe joint to ensure that the length of the air pipe 11 matches the length of the tunnel; At the same time, the first PLC controller 14 not only controls the start of the suction fan 10, but also controls the reciprocating extension and contraction of the moving end of the first electric push rod 54, and the actual power of the suction fan 10 is controlled by the first PLC controller 14 to half of the rated power. Then the suction fan 10 sucks the air at the tunnel construction site through the bend pipe 12 and the arc pipe 42, and the suction fan 10 transports the air at the tunnel construction site to the wind speed sensing area 18 of the treatment box 2 through the air pipe 11. At this time, since the air at the construction site in the tunnel is sucked in large quantities by the suction fan 10, the tunnel construction site is in a low-pressure area, so the tunnel needs to suck in external air to supplement it in order to ensure the air pressure balance in the tunnel, thereby realizing air circulation in the tunnel. This air circulation can not only improve the ventilation effect of the tunnel construction, but also the air sucked by the suction fan 10 can carry the construction dust into the treatment box 2 for treatment, which can improve the environmental quality of the tunnel construction. In addition, if hydrogen sulfide is released from the stratum excavated during construction in the tunnel, first, the hydrogen sulfide will be promptly transported to the treatment box 2 for treatment along with the air through the arc pipe 42, the elbow 12, the suction fan 10 and the air pipe 11, and will not spread on a large scale in the tunnel to endanger the health of the construction workers. Secondly, the hydrogen sulfide passing through the elbow 12 will be promptly detected and discovered by the hydrogen sulfide detection mechanism 5, so that the sound and light alarm 13 will sound an alarm, reminding the construction workers in the tunnel to evacuate in time. Specifically, when the moving end of the first electric push rod 54 is controlled to retract by the first PLC controller 14, the first electric push rod 54 drives the sealing piston block 55 to move, and cooperates with the standard gas cylinder 51 to suck the air in the elbow 12. At the same time, the air entering the standard gas cylinder 51 is also purified by the sponge block 53 and the multi-microporous ceramic filter plate 52. This is because there are many microporous ceramic filter plates 52 inside. Small pores allow air to pass through, while dust particles are physically intercepted on the surface of the filter plate because their particle size is larger than the pores. As for moisture, on the one hand, it condenses on the filter plate due to collision, and on the other hand, it is adsorbed in the pores, thereby achieving interception. Finally, the air enters the standard gas cylinder 51, and can avoid the interference of dust and moisture in the air on the detection sensitivity of the hydrogen sulfide sensor 56. The moving end of the first electric push rod 54 drives the sealing piston block 55 to be telescopic, and can drive the rack 45 to move back and forth through the connecting bent rod 58. The rack 45 drives the arc tube 42 to swing left and right through the external gear 43. The angle range of the arc tube 42 swinging left and right is 30°-150°. This range of angle swing can prevent the arc tube 42 from touching the inner wall of the tunnel. The swing of the arc tube 42 can expand the suction range and can more efficiently treat the hydrogen sulfide released in the tunnel due to construction; Then the hydrogen sulfide sensor 56 in the standard gas cylinder 51 will detect whether the air in the standard gas cylinder 51 contains hydrogen sulfide, and detect the concentration of hydrogen sulfide. The hydrogen sulfide sensor 56 is an electrochemical hydrogen sulfide sensor element, which contains an electrolyte and an electrode. The hydrogen sulfide gas enters the electrolyte through the gas permeable membrane in the sensor element and undergoes an oxidation-reduction reaction with the electrode to generate a current signal. The signal strength is proportional to the hydrogen sulfide concentration. The hydrogen sulfide concentration detection sensor 83 is also an electrochemical hydrogen sulfide sensor element, and its working principle is the same as that of the hydrogen sulfide sensor. 56 is consistent, and at the same time, the hydrogen sulfide sensor 56 sends an electrical signal to the first PLC controller 14, and the first PLC controller 14 controls the sound and light alarm 13 to alarm according to the electrical signal, reminding the workers in the tunnel to evacuate in time to ensure personal safety. Moreover, as the concentration of hydrogen sulfide in the air increases, the first PLC controller 14 controls the actual power of the suction fan 10 according to the electrical signal fed back by the hydrogen sulfide sensor 56 to increase accordingly. The larger actual power of the suction fan 10 can more comprehensively absorb the hydrogen sulfide in the tunnel, avoiding large-scale accumulation of hydrogen sulfide. The diffusion endangers the safety of construction workers evacuating from danger. When there is no hydrogen sulfide substance, the low-power operation of the suction fan 10 will reduce power consumption and ensure the energy-saving effect of the device. Finally, when the moving end of the first electric push rod 54 is extended, the sealing piston block 55 pushes the air in the standard gas cylinder 51 through the microporous ceramic filter plate 52 and the sponge block 53 to return to the elbow 12. During the air return process, the sponge block 53 and the microporous ceramic filter plate 52 can be recoiled and cleaned to ensure the reliability of the second filtration. This mechanism enables the highway gas tunnel treatment hydrogen sulfide treatment device to have real-time monitoring of hydrogen sulfide and tunnel The invention can realize the functions of internal air circulation and timely warning, collection and treatment of hydrogen sulfide, and improve the ability of hydrogen sulfide sensor 56 to resist environmental interference, and improve the sensitivity of hydrogen sulfide monitoring, further improve the timeliness of hydrogen sulfide treatment, which can not only improve the personal safety of construction personnel in the tunnel, but also improve the reliability and effect of the device in treating hydrogen sulfide. In addition, the split design can reduce the space occupancy rate of the hydrogen sulfide treatment device inside the highway gas tunnel, avoid the hydrogen sulfide treatment device from interfering with the highway gas tunnel construction, and ensure the convenience of highway gas tunnel construction; When the air pipe 11 guides the air transported by the suction fan 10 into the wind speed sensing area 18 of the treatment box 2, as the hydrogen sulfide content in the air increases, the actual power of the suction fan 10 gradually increases, which leads to the increase of the wind speed in the air pipe 11. At this time, the wind speed value in the air pipe 11 detected by the wind speed sensor 22 also gradually increases, and the wind speed sensor 22 can convert the wind speed value into an electrical signal and transmit it to the second PLC controller 23. If there is no hydrogen sulfide in the air in the air pipe 11, the actual power of the suction fan 10 is half of the rated power, and the wind speed in the air pipe 11 is low. The wind speed value detected by the wind speed sensor 22 does not reach the hydrogen sulfide treatment threshold preset by the second PLC controller 23, and the second PLC controller 23 controls The control drive motor 65 is started, and the drive motor 65 rotates the composite dust filter cartridge 61 on the second sealing bearing 62 through the transmission gear 66 and the connecting gear ring 64, so as to prevent the composite dust filter cartridge 61 from being blocked by continuous dust accumulation at the same position, and the dust in the air is intercepted by the composite dust filter cartridge 61, and the filtered air enters the absorption water layer 85 through the exhaust check valve 84 for water liquid sedimentation purification, and finally the clean air is discharged from the exhaust pipe joint 27. In addition, the sealing plug 611 is opened, and the dust in the composite dust filter cartridge 61 can be assisted by the second electric push rod 610, the U-shaped connecting rod 69 and the first scraper ring 67. This mechanism enables the device to have the function of construction dust treatment, thereby improving the environmental protection performance of the device; If the air contains hydrogen sulfide, the air is first treated and filtered by the dust reduction mechanism 6, and then the air containing hydrogen sulfide is transported to the absorption water layer 85 of the hydrogen sulfide treatment area 20 through the exhaust one-way valve 84. The bubbles generated by the air in the absorption water layer 85 are broken by the bubble breaking mesh plate 26, so that the hydrogen sulfide in the air is quickly dissolved in the water of the absorption water layer 85. Finally, the clean air is discharged through the exhaust pipe joint 27. At this time, the actual power of the suction fan 10 increases with the increase of the hydrogen sulfide concentration, and the wind speed value detected by the wind speed sensor 22 also exceeds the hydrogen sulfide treatment threshold value preset by the second PLC controller 23. At this time, the second PLC controller 23 not only controls the start of the drive motor 65 and the micro water pump 88, but also controls the one-way air pump 73 and the constant The closed one-way solenoid valve 71 is powered on and started, and the normally closed one-way solenoid valve 71 is opened after being powered on, so that the hydrogen peroxide in the hydrogen peroxide layer 72 can enter the hydrogen sulfide absorption water liquid layer 85 through the opened normally closed one-way solenoid valve 71, and then the hydrogen peroxide reacts with the hydrogen sulfide to produce elemental sulfur precipitation and water, and the gas supply power of the one-way air pump 73 is also increased with the increase of the wind speed value detected by the wind speed sensor 22, and the one-way air pump 73 is inflated to the top of the hydrogen peroxide storage area 21 through the connecting conduit 74, and the pressure of the hydrogen peroxide layer 72 is increased, so that more hydrogen peroxide is transported to the hydrogen sulfide treatment area 20, and it can fully cope with more hydrogen sulfide, so that the hydrogen sulfide can be fully treated. During the hydrogen sulfide treatment process, the absorbed water can also be detected by the hydrogen sulfide concentration detection sensor 83 Whether the liquid layer 85 still contains hydrogen sulfide, if not, the hydrogen sulfide concentration detection sensor 83 sends an electrical signal to the second PLC controller 23, the second PLC controller 23 controls the one-way air pump 73 and the normally closed one-way solenoid valve 71 to cut off the power, and the micro water pump 88 continues to cooperate with the recovery cylinder 86 to recover the elemental sulfur contained in the absorption water liquid layer 85. The micro water pump 88 runs for 30 minutes. When the absorption water liquid layer 85 is working, the liquid level change is also monitored by the liquid level sensor 82. If the liquid level of the absorption water liquid layer 85 reaches the horizontal plate 81, the liquid level sensor 82 sends a liquid level over-warning electrical signal to the second PLC controller 23, and the second PLC controller 23 promptly controls the one-way air pump 73 and the normally closed one-way solenoid valve 71 Closed to prevent the hydrogen peroxide from continuing to be injected, and more absorption water can be used to dissolve more hydrogen sulfide. Finally, as the water in the absorption water layer 85 evaporates, the liquid level gradually decreases, and when the liquid level sensor 82 detects that the liquid level of the absorption water layer 85 reaches a low liquid level, the liquid level sensor 82 bends and sends a low liquid level electrical signal to the second PLC controller 23. The second PLC controller 23 promptly controls the normally closed one-way solenoid valve 71 to open, so that the hydrogen peroxide enters the absorption water layer 85 again. At this time, the hydrogen peroxide can not only separate the hydrogen sulfide dissolved in the absorption water, but the water produced by the reaction of hydrogen peroxide and hydrogen sulfide can also replenish the absorption water layer 85. In addition, the absorption water layer 85 can also be supplemented with additional water through the water replenishment solenoid valve 28. The separated elemental sulfur will be transported to the recovery cylinder 86 by the micro water pump 88 through the liquid guide check valve 89 along with the absorption water layer 85, and then the elemental sulfur will be retained by the ceramic filter plate 814, and the filtered absorption water will be returned to the hydrogen sulfide treatment area 20 for reuse through the return pipe 810 and the drainage check valve 811. The elemental sulfur is separated by the recovery cylinder 86. When the elemental sulfur is recovered, the micro water pump 88 is controlled to be closed by the second PLC controller 23, and then the cylinder cover 812 is opened, and a collection container is used to collect sulfur on the side of the recovery cylinder 86. The end is connected, and the cylinder cover 812 is opened at the same time. The cylinder cover 812 scrapes and recovers the elemental sulfur attached to the recovery cylinder 86 through the connecting block 813, the ceramic filter plate 814, the extension rod 24 and the second scraper ring 25, so as to avoid the elemental sulfur adhering to and wasting in the recovery cylinder 86. This mechanism enables the highway gas tunnel hydrogen sulfide treatment device not only to have the function of completely treating hydrogen sulfide, but also to have the ability to recover and reuse the elemental sulfur after hydrogen sulfide treatment, which can not only improve the effect and reliability of the device in treating hydrogen sulfide, but also improve the environmental protection performance of the device.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for treating hydrogen sulfide in a highway gas tunnel, comprising a U-shaped housing (1) and a treatment box (2), characterized in that: Universal wheels (3) are fixedly connected at the four corners of the bottom end of the U-shaped housing (1); a suction fan (10) is fixedly connected to the inner wall of the bottom end of the U-shaped housing (1); an air outlet end of the suction fan (10) is fixedly connected to an air pipe (11) for connecting to the processing box (2); an air inlet end of the suction fan (10) is fixedly connected to a bent pipe (12); the air inlet end of the bent pipe (12) passes through the top end of the U-shaped housing (1) and is fixedly connected to an air inlet mechanism (4); The pipe wall of the curved pipe (12) is fixedly connected to a hydrogen sulfide detection mechanism (5), and the outer wall of the U-shaped housing (1) is fixedly connected to an audible and visual alarm (13) and a first PLC controller (14); The inner wall of the treatment box (2) is fixedly connected with a transverse partition (15), a first vertical partition (16) and a second vertical partition (17); the bottom end of the first vertical partition (16) and the top end of the second vertical partition (17) are both fixedly connected to the outer wall of the transverse partition (15); the transverse partition (15), the first vertical partition (16) and the second vertical partition (17) divide the inner cavity of the treatment box (2) into a wind speed sensing area (18), a dust removal area (19), a hydrogen sulfide treatment area (20) and a hydrogen peroxide storage area (21); A wind speed sensor (22) is fixedly connected to the outer wall of the transverse partition (15) located in the wind speed sensing area (18); a detection end of the wind speed sensor (22) is located outside the air outlet end of the air pipe (11); and a second PLC controller (23) is fixedly connected to the upper surface of the processing box (2); The dust removal area (19) is provided with a dust reduction mechanism (6) inside, the hydrogen peroxide storage area (21) is provided with a liquid replenishment mechanism (7) inside, and the hydrogen sulfide treatment area (20) is provided with a treatment mechanism (8) inside.

2. A highway gas tunnel treatment hydrogen sulfide device according to claim 1, characterized in that: The air intake mechanism (4) comprises a first sealing bearing (41) fixedly connected to the inner wall of the air intake end of the curved pipe (12); an arc tube (42) is fixedly connected to the inner wall of the first sealing bearing (41); an external gear (43) is fixedly connected to the bottom end of the arc tube (42); a limit frame (44) is fixedly connected to the upper surface of the U-shaped housing (1); and a rack (45) meshing with the external gear (43) is movably connected to the inner wall of the limit frame (44).

3. A device for treating hydrogen sulfide in a highway gas tunnel according to claim 2, characterized in that: The hydrogen sulfide detection mechanism (5) comprises a standard gas cylinder (51) fixedly connected to the outer wall of the bent pipe (12); the inner wall of the standard gas cylinder (51) is fixedly connected to a multi-porous ceramic filter plate (52); the air inlet side of the multi-porous ceramic filter plate (52) is fixedly connected to a sponge block (53); the outer end of the standard gas cylinder (51) is provided with a fixed through hole, and the hole wall of the fixed through hole is fixedly connected to a first electric push rod (54); the movable end of the first electric push rod (54) is fixedly connected to a sealing piston block (55); the outer wall of the sealing piston block (55) is fixedly connected to the outer wall of the sealing piston block (55); The inner wall of the standard gas cylinder (51) is sealed and movably connected, the outer wall of the sealing piston block (55) is provided with a fixed through hole, and the hole wall of the fixed through hole is fixedly connected to the hydrogen sulfide sensor (56), the outer wall of the standard gas cylinder (51) is provided with a threading hole (57) matched with the data line of the hydrogen sulfide sensor (56), and the hole wall of the threading hole (57) is movably connected to a connecting bent rod (58), the top end of the connecting bent rod (58) is fixedly connected to the side end of the rack (45), and the bottom end of the connecting bent rod (58) is fixedly connected to the outer wall of the sealing piston block (55).

4. A highway gas tunnel treatment hydrogen sulfide device according to claim 1, characterized in that: The dust suppression mechanism (6) comprises a composite dust filter cartridge (61), both ends of the composite dust filter cartridge (61) are fixedly connected to second sealed bearings (62), the outer walls of the outer rings of the two second sealed bearings (62) are respectively fixedly connected to the inner wall of the processing box (2) and the outer wall of the second vertical partition (17), a plurality of air guide one-way valves (63) are fixedly embedded on the outer wall of the second vertical partition (17) located at the composite dust filter cartridge (61), a connecting toothed ring (64) is fixedly sleeved on the outer wall of the composite dust filter cartridge (61), the bottom end of the transverse partition (15) is fixedly connected to a driving motor (65), and the output end of the driving motor (65) is fixedly connected to a toothed ring meshing with the outer wall of the connecting toothed ring (64). The composite dust filter cartridge (61) is movably connected to a first scraper ring (67) on its inner wall; two sealing sleeves (68) are fixedly embedded in the outer wall of the processing box (2); the inner walls of the two sealing sleeves (68) are sealingly and slidably connected to a U-shaped connecting rod (69); the side ends of the U-shaped connecting rod (69) are fixedly connected to the outer wall of the first scraper ring (67); a second electric push rod (610) is fixedly embedded in the outer wall of the processing box (2); the movable end of the second electric push rod (610) is fixedly connected to the rod wall of the U-shaped connecting rod (69); a dust exhaust hole is opened at the bottom end of the processing box (2); and a sealing plug (611) is fixedly threadedly connected to the hole wall of the dust exhaust hole.

5. A device for treating hydrogen sulfide in a highway gas tunnel according to claim 1, characterized in that: The liquid replenishing mechanism (7) comprises a normally closed one-way solenoid valve (71) fixedly connected to the bottom end of the first vertical partition (16); the interior of the hydrogen peroxide storage area (21) is filled with a hydrogen peroxide layer (72); the upper surface of the processing box (2) is fixedly connected to a one-way air pump (73); the air outlet end of the one-way air pump (73) is fixedly connected to a connecting conduit (74); the bottom end of the connecting conduit (74) passes through the inner wall of the processing box (2) and is connected to the cavity of the hydrogen peroxide storage area (21); the upper surface of the processing box (2) located in the hydrogen peroxide storage area (21) is provided with a liquid replenishing hole, and the hole wall of the liquid replenishing hole is connected to a sealing cover (75).

6. A device for treating hydrogen sulfide in a highway gas tunnel according to claim 1, characterized in that: The treatment mechanism (8) comprises a transverse plate (81), the side end of which is fixedly connected to the outer wall of the first vertical partition (16), the bottom end of the transverse plate (81) is provided with two fixing holes, and the hole walls of the two fixing holes are respectively fixedly connected to a liquid level sensor (82) and a hydrogen sulfide concentration detection sensor (83), an exhaust check valve (84) is fixedly embedded on the upper surface of the transverse partition (15), the interior of the hydrogen sulfide treatment area (20) is filled with an absorption water layer (85), the outer wall of the treatment box (2) located in the hydrogen sulfide treatment area (20) is fixedly connected to a recovery cylinder (86), the inner side end outer wall of the recovery cylinder (86) is fixedly connected to a fixing ring (87), and the inner wall of the fixing ring (87) is fixed A micro water pump (88) is connected, the liquid outlet end of the micro water pump (88) is fixedly connected to a liquid guide one-way valve (89), the outer wall of the outer end of the recovery cylinder (86) is fixedly connected to a return pipe (810), the liquid outlet end of the return pipe (810) is fixedly connected to a drainage one-way valve (811), the liquid outlet end of the drainage one-way valve (811) passes through the inner wall of the treatment box (2), the side end of the recovery cylinder (86) is threadedly connected to a cylinder cover (812), the inner wall of the cylinder cover (812) is fixedly connected to a connection block (813), the side end of the connection block (813) is fixedly connected to a ceramic filter plate (814), and the side wall of the ceramic filter plate (814) is sealed and movably connected to the inner wall of the recovery cylinder (86).

7. A device for treating hydrogen sulfide in a highway gas tunnel according to claim 6, characterized in that: The outer wall of the ceramic filter plate (814) is fixedly connected to two extension rods (24), the side ends of the two extension rods (24) are commonly fixedly connected to a second scraper ring (25), the outer wall of the second scraper ring (25) is in active contact with the inner wall of the recovery cylinder (86), and the tube wall of the hydrogen sulfide concentration detection sensor (83) is fixedly sleeved with a bubble breaking mesh plate (26).

8. A device for treating hydrogen sulfide in a highway gas tunnel according to claim 1, characterized in that: A U-shaped cover plate (9) for protecting a second PLC controller (23) is fixedly connected to the top of the treatment box (2), and a discharge pipe joint (27) and a water supply solenoid valve (28) are fixedly connected to the outer wall of the treatment box (2) located in the hydrogen sulfide treatment area.

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