Waste gas detection and treatment integrated device and treatment method

Abstract

The invention discloses a waste gas detection and treatment integrated device and a treatment method, and relates to the technical field of waste gas treatment.The waste gas detection and treatment integrated device comprises a sealing box and a box door, a treatment box is installed in an inner cavity of the sealing box, a communicated waste gas inlet pipe is arranged at the top of the treatment box, and a filter screen, an activated carbon layer and a fixing cover are sequentially connected to the inner wall of the treatment box from top to bottom; a cleaning assembly is arranged on the treatment box, multiple sets of circulating gas pipes are installed at the bottom of the fixing cover, a detection box is installed on the outer wall of the right side of the sealing box, an air detector is arranged in the detection box, a waste gas return pipe and an exhaust pipe which are communicated are arranged on the detection box, and the cleaning assembly comprises cleaning scrapers slidably connected to the upper surfaces of the filter screen and the activated carbon layer. According to the waste gas detection and treatment integrated device, purified waste gas can be detected, the situation that the waste gas is not thoroughly purified and discharged into air is avoided, the use effect of the waste gas detection and treatment integrated device is improved, impurities on the filter screen and the activated carbon layer can be cleaned, and the situation that the filter screen and the activated carbon layer are blocked and consequently the waste gas treatment effect is affected is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to an integrated device for detecting and treating waste gas and a treatment method. Background Art

[0002] Waste gas refers to harmful gases emitted during industrial production, transportation, domestic combustion, etc., mainly including sulfur dioxide (SO2), nitrogen oxides (NO x ), carbon monoxide (CO), volatile organic compounds (VOCs), and particulate matter (PM). These pollutants not only contribute to air pollution but also cause acid rain, photochemical smog, and the greenhouse effect, threatening ecosystems and human health. Therefore, exhaust gas treatment equipment is necessary to purify exhaust gas.

[0003] After the existing waste gas treatment device purifies the waste gas, it is not convenient to detect the purified waste gas, and it is not convenient to return the incompletely purified waste gas for secondary purification treatment, resulting in some incompletely purified waste gas being directly discharged into the air, causing pollution to the environment. For this reason, we have improved the above-mentioned existing technology based on actual usage. Summary of the Invention

[0004] The object of the present invention is to provide an integrated device for detecting and treating exhaust gas and a treatment method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An integrated device for detecting and treating exhaust gas comprises a sealed box and a box door, a PLC controller is provided on the front end face of the box door, a treatment box is installed in the inner cavity of the sealed box, a connected exhaust gas inlet pipe is provided on the top of the treatment box, a filter screen, an activated carbon layer and a fixed cover are connected to the inner wall of the treatment box from top to bottom, a purified liquid storage chamber is provided at the bottom of the inner cavity of the treatment box, a liquid storage tank is installed on the top of the inner cavity of the sealed box, and an infusion component and a recovery component are provided between the liquid storage tank and the purified liquid storage chamber, a cleaning component is provided on the treatment box, and a fixed cover is provided. Multiple groups of interconnected circulating air pipes are installed at the bottom, and the outer wall of each group of circulating air pipes is provided with multiple groups of air holes, and the other end of the multiple groups of circulating air pipes is connected to the exhaust main pipe, and the other end of the exhaust main pipe is connected to the exhaust output pipe. A detection box is installed on the right outer wall of the sealed box, and an air detector is installed in the detection box. The exhaust output pipe is connected to the inner cavity of the detection box. The detection box is provided with a connected exhaust return pipe and an exhaust pipe. The exhaust return pipe is connected to the exhaust gas intake pipe, and the exhaust return pipe and the exhaust pipe are respectively installed with a solenoid valve 1 and a solenoid valve 2;

[0007] The cleaning component includes a cleaning scraper slidably connected to the filter screen and the upper surface of the activated carbon layer. The left side wall of the processing box is movably connected to two sets of movable sealing doors, and a waste collection box is installed on the left outer wall of the processing box.

[0008] Preferably, the cleaning assembly includes a U-shaped box fixedly mounted on the front end of the right side wall of the processing box, a motor is mounted on the outer wall of the U-shaped box, the output end of the motor is connected to a drive shaft, the other end of the drive shaft is rotatably connected to the right side outer wall of the processing box through a bearing, and a driving gear is sleeved on the drive shaft, and both side walls of the driving gear are meshed with driven gears, two sets of bearing seats are provided on the inner wall of the U-shaped box, and the two sets of bearing seats are respectively connected to the two sets of driven gears, and a screw rod is mounted on the side of the two sets of driven gears away from the bearing seat, and the other end of the screw rod is rotatably connected to the left inner wall of the processing box through a bearing.

[0009] Preferably, a threaded sleeve is threadedly connected to the screw rod, a sliding rod is further installed on the inner wall of the processing box, a sliding sleeve is slidably connected to the sliding rod, and two ends of the threaded sleeve are respectively connected to the sliding sleeve and the cleaning scraper.

[0010] Preferably, the infusion component includes a water pump installed on the top wall of the sealed box cavity, the liquid inlet of the water pump is connected to the liquid storage box cavity through a pipeline, the liquid outlet of the water pump is installed with a water pipe, and the water pipe is connected to the purified liquid storage cavity cavity.

[0011] Preferably, the recovery component includes a return liquid pump and a purification box installed at the front end of the processing box. The liquid inlet of the return liquid pump is connected to a reflux pipe, which is connected to the purified liquid storage chamber. A purification structure is installed on the inner wall of the purification box. A recovery pipe is connected to the purification box, and the other end of the recovery pipe is connected to the inner cavity of the liquid storage tank. The purification structure includes a first filter plate, a second filter plate and an activated carbon plate, and the first filter plate, the second filter plate and the activated carbon plate are installed on the inner wall of the purification box from bottom to top.

[0012] Preferably, a liquid adding pipe is installed on the top of the sealed box, the bottom of the liquid adding pipe is connected to the liquid storage tank, and a threaded cover is provided on the liquid adding pipe. A drain pipe is installed at the bottom end of the left side wall of the processing box, the drain pipe runs through the side wall of the sealed box, and a valve is installed on the drain pipe.

[0013] Preferably, a support plate is installed on the left side wall of the processing box, a T-shaped slot is opened on the support plate, a T-shaped seat is slidably connected in the T-shaped slot, and the top of the T-shaped seat is fixedly connected to the bottom of the waste collection box.

[0014] S1: First, open the cover on the liquid adding pipe and pour the purified liquid for purifying the exhaust gas into the liquid storage tank. The PLC controller controls the water pump on the infusion component to work. The operation of the water pump generates suction and transports the purified liquid in the liquid storage tank to the purified liquid storage chamber through the water pipe. Then, the exhaust gas inlet pipe is connected to the exhaust gas source, and the exhaust gas is transported to the treatment box. The exhaust gas will pass through the filter screen and the activated carbon layer in the treatment box in turn. Finally, the exhaust gas is transported to multiple sets of circulating air pipes through the fixed cover. The multiple sets of air holes opened on the multiple sets of circulating air pipes will allow the purified liquid to contact the exhaust gas, thereby increasing the contact time between the exhaust gas and the purified liquid. Finally, the purified exhaust gas is transported to the purification box through the exhaust gas main pipe and the exhaust gas output pipe;

[0015] S2: Then, the air detector in the purification box detects the purified exhaust gas and feeds back the test results to the PLC controller. When the test results meet the emission requirements, the PLC controller controls the solenoid valve 2 to open and the solenoid valve 1 to close, and the exhaust pipe discharges the purified exhaust gas. When the test results do not meet the emission requirements, the PLC controller controls the solenoid valve 2 to close and the solenoid valve 1 to open, and the exhaust gas return pipe transports the exhaust gas to the exhaust gas inlet pipe, and the treatment box performs secondary purification on the exhaust gas.

[0016] S3: When cleaning impurities on the filter screen and the activated carbon layer, the PLC controller controls the motor on the cleaning component to work. The work of the motor drives the driving gear fixedly connected to the drive shaft to rotate. Since the driving gear is meshed and connected with the two sets of driven gears, and the driven gear is rotationally connected to the inner wall of the U-shaped box through the bearing seat, the screw fixedly connected to the two sets of driven gears can rotate synchronously. After the threaded sleeve threadedly connected to the screw rod passes through the sliding limit of the sliding rod and the sliding sleeve, the cleaning scraper can move on the surface of the filter screen and the activated carbon layer. The impurities will push the movable sealing door to open, so that the impurities on the filter screen and the activated carbon layer fall and are collected in the waste collection box;

[0017] S4: Finally, after the purified liquid in the purified liquid storage chamber has been used for a period of time, the PLC controller controls the return liquid pump on the recovery component to work. The operation of the return liquid pump can generate suction in the reflux pipe, so that the purified liquid in the purified liquid storage chamber can be recovered into the purification box. The first filter plate, the second filter plate and the activated carbon plate of the purification structure filter and purify the purified liquid. Finally, the purified purified liquid is collected into the liquid storage tank through the recovery pipe, thereby realizing the recycling of the purified liquid and reducing the cost of waste gas treatment.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention performs primary filtration and purification treatment on the exhaust gas through a filter screen and an activated carbon layer. The multiple groups of air holes opened on the multiple groups of circulating air pipes allow the exhaust gas to contact with the purification liquid, thereby increasing the contact time between the exhaust gas and the purification liquid and improving the effect of the exhaust gas purification treatment. The purified exhaust gas can be detected by an air detector, and the detection result is fed back to the PLC controller. When the detection result meets the emission requirements, the PLC controller controls the solenoid valve 2 to open and the solenoid valve 1 to close, and the exhaust pipe is about to discharge the purified exhaust gas. When the detection result does not meet the emission requirements, the PLC controller controls the solenoid valve 2 to close and the solenoid valve 1 to open, and the exhaust gas return pipe transports the exhaust gas to the exhaust gas inlet pipe. The treatment box performs secondary purification treatment on the exhaust gas to avoid incomplete purification of the exhaust gas and discharge it into the air, thereby improving the use effect of the integrated exhaust gas detection and treatment device;

[0020] 2. The motor on the cleaning assembly drives the driving gear fixedly connected to the drive shaft to rotate. Since the driving gear is meshed with the two sets of driven gears and the driven gear is rotatably connected to the inner wall of the U-shaped box through the bearing seat, the screw fixedly connected to the two sets of driven gears can rotate synchronously. After the threaded sleeve threadedly connected to the screw passes through the sliding limit of the sliding rod and the sliding sleeve, the cleaning scraper can move on the surface of the filter screen and the activated carbon layer. Impurities will push the movable sealing door to open, so that impurities on the filter screen and the activated carbon layer fall and are collected in the waste collection box, realizing automatic cleaning of filtered impurities and avoiding clogging of the filter screen and the activated carbon layer and affecting the treatment effect of the exhaust gas; the return pump on the recovery component can generate suction in the return pipe, so that the purified liquid in the purified liquid storage chamber can be recovered into the purification box, and the first filter plate, the second filter plate and the activated carbon plate of the purification structure filter and purify the purified liquid. Finally, the purified purified liquid is collected into the liquid storage tank through the recovery pipe, realizing the recycling of the purified liquid and reducing the cost of exhaust gas treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the sealed box of the present invention;

[0023] Figure 3 It is a cross-sectional schematic diagram of the connection structure between the sealing box and the processing box of the present invention;

[0024] Figure 4 It is a schematic cross-sectional view of the front connection structure between the sealing box and the processing box of the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the processing box of the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the processing box of the present invention;

[0027] Figure 7 For the present invention Figure 6 A in the middle is an enlarged structural diagram;

[0028] Figure 8 It is a schematic cross-sectional view of the side connection structure of the processing box, liquid storage box and recovery component of the present invention.

[0029] Figure: 1, sealed box; 2, box door; 3, PLC controller; 4, detection box; 5, liquid adding pipe; 6, treatment box; 7, liquid storage tank; 8, recovery component; 800, liquid return pump; 801, return pipe; 802, purification box; 803, purification structure; 804, recovery pipe; 9, water pump; 10, water pipe; 11, exhaust gas intake pipe; 12, liquid discharge pipe; 13, exhaust gas return pipe; 14, solenoid valve 1; 15, exhaust pipe; 16, solenoid valve 2; 17, waste collection box; 18, purified liquid storage Storage cavity; 19. Exhaust gas output pipe; 20. Circulating air pipe; 21. Air detector; 22. Exhaust gas main pipe; 23. Fixed cover; 24. Filter; 25. Activated carbon layer; 26. Cleaning assembly; 261. Slide rod; 262. Slide sleeve; 263. Threaded sleeve; 264. Screw; 265. Cleaning scraper; 266. U-shaped box; 267. Motor; 268. Drive shaft; 269. Driving gear; 2610. Driven gear; 2611. Bearing seat; 27. Movable sealing door; 28. Air hole. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] Example 1:

[0032] See also Figure 1-8The present invention provides a technical solution: an integrated device for detecting and treating exhaust gas, comprising a sealed box 1 and a box door 2, a PLC controller 3 being provided on the front end surface of the box door 2, a treatment box 6 being installed in the inner cavity of the sealed box 1, a connected exhaust gas inlet pipe 11 being provided on the top of the treatment box 6, a filter screen 24, an activated carbon layer 25 and a fixed cover 23 being connected to the inner wall of the treatment box 6 from top to bottom, a purified liquid storage chamber 18 being provided at the bottom of the inner cavity of the treatment box 6, a liquid storage tank 7 being installed on the top of the inner cavity of the sealed box 1, and an infusion component and a recovery component 8 being provided between the liquid storage tank 7 and the purified liquid storage chamber 18, a cleaning component 26 being provided on the treatment box 6, and a fixed cover 23 being provided. 3 is installed at the bottom of multiple groups of circulating air pipes 20, and the outer wall of each group of circulating air pipes 20 is provided with multiple groups of air holes 28, and the other end of the multiple groups of circulating air pipes 20 is connected to the exhaust main pipe 22, and the other end of the exhaust main pipe 22 is connected to the exhaust output pipe 19. A detection box 4 is installed on the right outer wall of the sealed box 1, and an air detector 21 is provided in the detection box 4. The exhaust output pipe 19 is connected to the inner cavity of the detection box 4. The detection box 4 is provided with a connected exhaust return pipe 13 and an exhaust pipe 15. The exhaust return pipe 13 is connected to the exhaust gas inlet pipe 11, and the exhaust return pipe 13 and the exhaust pipe 15 are respectively installed with a solenoid valve 14 and a solenoid valve 2 16;

[0033] Before use, the electrical ends of all electrical equipment must be electrically connected to the external power supply and the electrical ends of the PLC controller 3 through wires, and different purification liquids (for example, acidic purification liquid, alkaline purification liquid, etc.) are selected according to the harmful substances in the exhaust gas. The exhaust gas inlet pipe 11 is connected to the exhaust gas source, and the exhaust gas is transported to the treatment box 6. The exhaust gas will pass through the filter 24 and the activated carbon layer 25. The filter 24 and the activated carbon layer 25 perform initial filtration and purification on the exhaust gas. The exhaust gas is then transported to the multiple sets of circulating air pipes 20 through the fixed cover 23. Since multiple sets of air holes 28 are provided on the circulating air pipe 20, the exhaust gas will come into contact with the purification liquid in the purification liquid storage chamber 18 through the air holes 28, which increases the contact time between the exhaust gas and the purification liquid and improves the efficiency of the exhaust gas purification treatment. If the exhaust gas is not completely purified, the exhaust gas will be transported to the detection box 4 through the exhaust main pipe 22 and the exhaust output pipe 19. The purified exhaust gas can be detected by the air detector 21, and the detection result is fed back to the PLC controller 3. When the detection result meets the emission requirements, the PLC controller 3 controls the solenoid valve 2 16 to open and the solenoid valve 1 14 to close, and the exhaust pipe 15 is about to discharge the purified exhaust gas. When the detection result does not meet the emission requirements, the PLC controller 3 controls the solenoid valve 2 16 to close and the solenoid valve 1 14 to open, and the exhaust gas return pipe 13 transports the exhaust gas to the exhaust gas inlet pipe 11. The treatment box 6 performs secondary purification on the exhaust gas to avoid incomplete exhaust gas purification and discharge into the air, thereby improving the use effect of the integrated exhaust gas detection and treatment device.

[0034] The cleaning component 26 includes a cleaning scraper 265 that is slidably connected to the upper surface of the filter 24 and the activated carbon layer 25. The left side wall of the processing box 6 is movably connected with two groups of movable sealing doors 27, and the left outer wall of the processing box 6 is installed with a waste collection box 17; the left side wall of the processing box 6 is provided with two groups of slots, the size of the slots is adapted to the size of the movable sealing doors 27, and the movable sealing doors 27 are connected to the inner walls of the slots through a rotating shaft. The cleaning component 26 can drive the cleaning scraper 265 to move on the surface of the filter 24 and the activated carbon layer 25. Impurities push the movable sealing door 27 to open, and the impurities will fall through the slots and be collected in the waste collection box 17, thereby realizing automatic cleaning of filtered impurities and avoiding clogging of the filter 24 and the activated carbon layer 25 and affecting the treatment effect of the exhaust gas.

[0035] Among them, the cleaning assembly 26 includes a U-shaped box 266 fixedly mounted on the front end of the right side wall of the processing box 6, and a motor 267 is installed on the outer wall of the U-shaped box 266. The output end of the motor 267 is connected to a drive shaft 268, and the other end of the drive shaft 268 is rotatably connected to the right side outer wall of the processing box 6 through a bearing, and a driving gear 269 is sleeved on the drive shaft 268. Both side walls of the driving gear 269 are meshed and connected with a driven gear 2610. The inner wall of the U-shaped box 266 is provided with two groups of bearing seats 2611, and the two groups of bearing seats 2611 are respectively connected to the two groups of driven gears 2610. A screw rod 264 is installed on the side of the two groups of driven gears 2610 away from the bearing seat 2611, and the other end of the screw rod 264 is rotatably connected to the left inner wall of the processing box 6 through a bearing;

[0036] The motor 267 is operated through the PLC controller 3. The operation of the motor 267 ensures that the cleaning scraper 265 moves back and forth on the filter screen 24 and the activated carbon layer 25. The operation of the motor 267 can drive the driving gear 269 fixedly connected to the drive shaft 268 to rotate. Since the driving gear 269 is meshed with the two sets of driven gears 2610 and the driven gear 2610 is rotatably connected to the inner wall of the U-shaped box 266 through the bearing seat 2611, the screw rod 264 fixedly connected to the driven gear 2610 can rotate forward or reverse.

[0037] A threaded sleeve 263 is threadedly connected to the screw rod 264, and a sliding rod 261 is also installed on the inner wall of the processing box 6. A sliding sleeve 262 is slidably connected to the sliding rod 261, and the two ends of the threaded sleeve 263 are respectively connected to the sliding sleeve 262 and the cleaning scraper 265; the threaded sleeve 263 is fixedly connected to the sliding sleeve 262 and the cleaning scraper 265. After the threaded sleeve 263 threadedly connected to the screw rod 264 is limited by the sliding rod 261 and the sliding sleeve 262, the cleaning scraper 265 can move on the filter screen 24 and the activated carbon layer 25, and the impurities on the filter screen 24 and the activated carbon layer 25 can be pushed to the movable sealing door 27.

[0038] The infusion component includes a water pump 9 installed on the top wall of the inner cavity of the sealed box 1. The liquid inlet of the water pump 9 is connected to the inner cavity of the liquid storage tank 7 through a pipeline. The liquid outlet of the water pump 9 is installed with a water pipe 10, and the water pipe 10 is connected to the inner cavity of the purified liquid storage chamber 18; the operation of the water pump 9 can make the pipeline generate suction, and the purified liquid in the liquid storage tank 7 is transported to the purified liquid storage chamber 18 in the treatment box 6 through the water pipe 10.

[0039] The recovery component 8 includes a liquid return pump 800 and a purification box 802 installed at the front end of the treatment box 6. The liquid inlet of the liquid return pump 800 is connected to a reflux pipe 801, which is communicated with the purified liquid storage chamber 18. The inner wall of the purification box 802 is installed with a purification structure 803. The purification box 802 is connected to a recovery pipe 804, and the other end of the recovery pipe 804 is communicated with the inner cavity of the liquid storage tank 7. The purification structure 803 includes a first filter plate, a second filter plate and an activated carbon plate, and the first filter plate, the second filter plate and the activated carbon plate are arranged in order from bottom to top. Installed on the inner wall of the purification box 802; after the purified liquid in the purified liquid storage chamber 18 has been used for a period of time, the return liquid pump 800 on the recovery component 8 works to make the reflux pipe 801 generate suction, so that the purified liquid in the purified liquid storage chamber 18 can be recovered into the purification box 802, and the first filter plate, the second filter plate and the activated carbon plate of the purification structure 803 filter and purify the purified liquid. Finally, the purified purified liquid is collected into the liquid storage tank 7 through the recovery pipe 804, thereby realizing the recycling of the purified liquid and reducing the cost of exhaust gas treatment.

[0040] A liquid adding pipe 5 is installed on the top of the sealed box 1, the bottom of the liquid adding pipe 5 is connected to the liquid storage tank 7, and a threaded cover is provided on the liquid adding pipe 5. A drain pipe 12 is installed at the bottom end of the left side wall of the processing box 6. The drain pipe 12 runs through the side wall of the sealed box 1, and a valve is installed on the drain pipe 12; the threaded cover on the liquid adding pipe 5 can be easily opened and closed, which is convenient for adding purified liquid to the liquid storage tank 7. After the purified liquid in the purified liquid storage chamber 18 loses its effectiveness, the valve is opened and the drain pipe 12 can discharge the purified liquid.

[0041] Example 2:

[0042] Reference Figure 3 This embodiment is different from the first embodiment in that: a support plate is installed on the left side wall of the processing box 6, and a T-shaped slot is opened on the support plate. A T-shaped seat is slidably connected in the T-shaped slot, and the top of the T-shaped seat is fixedly connected to the bottom of the waste collection box 17; the support plate is fixedly connected to the left side wall of the processing box 6, and the T-shaped seat is fixedly connected to the bottom of the waste collection box 17. The support plate supports the waste collection box 17, and through the sliding connection between the T-shaped seat and the T-shaped slot, after opening the box door 2, it is more labor-saving to take out the waste collection box 17.

[0043] An integrated device and method for detecting and treating waste gas, comprising the following steps:

[0044] S1: First, the electrical ends of all electrical equipment are electrically connected to the external power supply and the electrical ends of the PLC controller 3 through wires, the cover on the liquid adding pipe 5 is opened, and the purified liquid for purifying the exhaust gas is poured into the liquid storage tank 7, and the PLC controller 3 controls the water pump 9 on the infusion component to work. The operation of the water pump 9 generates suction to transport the purified liquid in the liquid storage tank 7 through the water pipe 10 to the purified liquid storage chamber 18 through the water pipe, and then the exhaust gas inlet pipe 11 is connected to the exhaust gas source, and the exhaust gas is transported to the treatment box 6. The exhaust gas will pass through the filter screen 24 and the activated carbon layer 25 in the treatment box 6 in turn, and finally the exhaust gas is transported to the multiple sets of circulating air pipes 20 through the fixed cover 23. The multiple sets of air holes 28 opened on the multiple sets of circulating air pipes 20 will allow the purified liquid to contact with the exhaust gas, thereby increasing the contact time between the exhaust gas and the purified liquid. Finally, the purified exhaust gas is transported to the purification box 801 through the exhaust main pipe 22 and the exhaust output pipe 19;

[0045] S2: Then, the air detector 21 in the purification box 801 detects the purified exhaust gas and feeds back the detection result to the PLC controller 3. When the detection result meets the emission requirements, the PLC controller 3 controls the solenoid valve 2 16 to open and the solenoid valve 1 14 to close, and the exhaust pipe 15 discharges the purified exhaust gas. When the detection result does not meet the emission requirements, the PLC controller 3 controls the solenoid valve 2 16 to close and the solenoid valve 1 14 to open, and the exhaust gas return pipe 13 transports the exhaust gas to the exhaust gas inlet pipe 11, and the treatment box 6 performs secondary purification on the exhaust gas.

[0046] S3: When cleaning impurities on the filter screen 24 and the activated carbon layer 25, the PLC controller 3 controls the motor 267 on the cleaning component 26 to work. The work of the motor 267 drives the driving gear 269 fixedly connected to the drive shaft 268 to rotate. Since the driving gear 269 is meshed and connected with the two sets of driven gears 2610, and the driven gear 2610 is rotatably connected to the inner wall of the U-shaped box 266 through the bearing seat 2611, the screw rod 264 fixedly connected to the two sets of driven gears 2610 can rotate synchronously. After the threaded sleeve 263 threadedly connected to the screw rod 264 is limited by the sliding rod 261 and the sliding sleeve 262, the cleaning scraper 265 can move on the surface of the filter screen 24 and the activated carbon layer 25. The impurities will push the movable sealing door 27 to open, so that the impurities on the filter screen 24 and the activated carbon layer 25 fall and are collected in the waste collection box 17. After the box door 2 is opened, the waste collection box 17 can be taken out, which facilitates the cleaning of the waste in the waste collection box 17.

[0047] S4: Finally, after the purified liquid in the purified liquid storage chamber 18 has been used for a period of time, the PLC controller 3 controls the return liquid pump 800 on the recovery component 8 to work. The operation of the return liquid pump 800 can enable the reflux pipe 801 to generate suction, and the purified liquid in the purified liquid storage chamber 18 can be recovered into the purification box 802. The first filter plate, the second filter plate and the activated carbon plate of the purification structure 803 filter and purify the purified liquid. Finally, the purified purified liquid is collected into the liquid storage tank 7 through the recovery pipe 804, thereby realizing the recycling of the purified liquid and reducing the cost of waste gas treatment.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An integrated device for detecting and treating exhaust gas, comprising a sealed box (1) and a box door (2), characterized in that: The front end of the box door (2) is provided with a PLC controller (3), the inner cavity of the sealed box (1) is provided with a processing box (6), the top of the processing box (6) is provided with a connected exhaust gas intake pipe (11), the inner wall of the processing box (6) is connected with a filter screen (24), an activated carbon layer (25) and a fixed cover (23) in sequence from top to bottom, the bottom of the inner cavity of the processing box (6) is provided with a purified liquid storage chamber (18), the top of the inner cavity of the sealed box (1) is provided with a liquid storage box (7), and an infusion component and a recovery component (8) are provided between the liquid storage box (7) and the purified liquid storage chamber (18), the processing box (6) is provided with a cleaning component (26), and the bottom of the fixed cover (23) is provided with multiple groups of connected circulating air pipes (20 ), the outer wall of each group of circulating air pipes (20) is provided with multiple groups of air holes (28), and the other end of the multiple groups of circulating air pipes (20) is connected to the exhaust gas main pipe (22), the other end of the exhaust gas main pipe (22) is connected to the exhaust gas output pipe (19), the right outer wall of the sealed box (1) is installed with a detection box (4), and the detection box (4) is provided with an air detector (21), the exhaust gas output pipe (19) is communicated with the inner cavity of the detection box (4), the detection box (4) is provided with a connected exhaust gas return pipe (13) and an exhaust pipe (15), the exhaust gas return pipe (13) is communicated with the exhaust gas inlet pipe (11), and the exhaust gas return pipe (13) and the exhaust pipe (15) are respectively installed with a solenoid valve 1 (14) and a solenoid valve 2 (16); The cleaning assembly (26) includes a cleaning scraper (265) slidably connected to the filter screen (24) and the upper surface of the activated carbon layer (25); the left side wall of the processing box (6) is movably connected to two sets of movable sealing doors (27), and the left outer wall of the processing box (6) is installed with a waste collection box (17).

2. The integrated exhaust gas detection and processing device according to claim 1, characterized in that: The cleaning assembly (26) comprises a U-shaped box (266) fixedly mounted on the front end of the right side wall of the processing box (6); a motor (267) is mounted on the outer wall of the U-shaped box (266); an output end of the motor (267) is connected to a drive shaft (268); the other end of the drive shaft (268) is rotatably connected to the right side outer wall of the processing box (6) via a bearing, and a driving gear (269) is sleeved on the drive shaft (268).

3. The integrated exhaust gas detection and processing device according to claim 2, characterized in that: Both side walls of the driving gear (269) are meshedly connected with driven gears (2610), and the inner wall of the U-shaped box (266) is provided with two sets of bearing seats (2611), and the two sets of bearing seats (2611) are respectively connected to the two sets of driven gears (2610), and the two sets of driven gears (2610) are both installed with screw rods (264) on the sides away from the bearing seats (2611), and the other ends of the screw rods (264) are rotatably connected to the left inner wall of the processing box (6) through bearings.

4. The integrated exhaust gas detection and processing device according to claim 3, characterized in that: The screw rod (264) is threadedly connected to a threaded sleeve (263), and the inner wall of the processing box (6) is also installed with a sliding rod (261). The sliding rod (261) is slidably connected to a sliding sleeve (262), and the two ends of the threaded sleeve (263) are respectively connected to the sliding sleeve (262) and the cleaning scraper (265).

5. The integrated exhaust gas detection and processing device according to claim 1, characterized in that: The infusion component comprises a water pump (9) mounted on the top wall of the inner cavity of the sealed box (1); the liquid inlet of the water pump (9) is connected to the inner cavity of the liquid storage box (7) through a pipeline; the liquid outlet of the water pump (9) is equipped with a water delivery pipe (10), and the water delivery pipe (10) is connected to the inner cavity of the purified liquid storage chamber (18).

6. The integrated exhaust gas detection and processing device according to claim 1, characterized in that: The recovery component (8) comprises a liquid return pump (800) and a purification box (802) installed at the front end of the treatment box (6); the liquid inlet of the liquid return pump (800) is connected to a return pipe (801), and the return pipe (801) is communicated with the purified liquid storage chamber (18); a purification structure (803) is installed on the inner wall of the purification box (802); a recovery pipe (804) is connected to the purification box (802), and the other end of the recovery pipe (804) is communicated with the inner cavity of the liquid storage box (7).

7. The integrated exhaust gas detection and processing device according to claim 1, characterized in that: A liquid adding pipe (5) is installed on the top of the sealing box (1), the bottom of the liquid adding pipe (5) is connected to the liquid storage box (7), and a threaded sealing cover is provided on the liquid adding pipe (5). A liquid drain pipe (12) is installed on the bottom end of the left side wall of the processing box (6), the liquid drain pipe (12) passes through the side wall of the sealing box (1), and a valve is installed on the liquid drain pipe (12).

8. The integrated exhaust gas detection and processing device according to claim 6, characterized in that: The purification structure (803) includes a first filter plate, a second filter plate and an activated carbon plate, and the first filter plate, the second filter plate and the activated carbon plate are sequentially installed on the inner wall of the purification box (802) from bottom to top.

9. The integrated exhaust gas detection and processing device according to claim 1, characterized in that: A support plate is installed on the left side wall of the processing box (6), and a T-shaped slot is provided on the support plate. A T-shaped seat is slidably connected in the T-shaped slot, and the top of the T-shaped seat is fixedly connected to the bottom of the waste collection box (17).

10. The method for processing exhaust gas using an integrated device for detecting and processing exhaust gas according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: S1: First, open the cover on the liquid adding pipe (5), pour the purified liquid for purifying the waste gas into the liquid storage tank (7), the PLC controller (3) controls the water pump (9) on the infusion component to work, the operation of the water pump (9) generates suction to transport the purified liquid in the liquid storage tank (7) through the water pipe (10) to the purified liquid storage chamber (18), and then connect the waste gas inlet pipe (11) with the waste gas source, and the waste gas is transported to the treatment box (6), and the waste gas will pass through the filter screen (24) and the activated carbon layer (25) in the treatment box (6) in turn, and finally the waste gas is transported to the multiple groups of circulating air pipes (20) through the fixed cover (23). The multiple groups of air holes (28) opened on the multiple groups of circulating air pipes (20) will make the purified liquid contact with the waste gas, thereby increasing the contact time between the waste gas and the purified liquid. Finally, the purified waste gas is transported to the purification box (801) through the waste gas main pipe (22) and the waste gas output pipe (19); S2: Then, the air detector (21) in the purification box (801) detects the purified exhaust gas and feeds back the detection result to the PLC controller (3). When the detection result meets the emission requirements, the PLC controller (3) controls the electromagnetic valve 2 (16) to open and the electromagnetic valve 1 (14) to close, and the exhaust pipe (15) discharges the purified exhaust gas. When the detection result does not meet the emission requirements, the PLC controller (3) controls the electromagnetic valve 2 (16) to close and the electromagnetic valve 1 (14) to open, and the exhaust gas return pipe (13) transports the exhaust gas to the exhaust gas inlet pipe (11), and the treatment box (6) performs secondary purification on the exhaust gas. S3: When cleaning impurities on the filter screen (24) and the activated carbon layer (25), the PLC controller (3) controls the motor (267) on the cleaning component (26) to work. The work of the motor (267) drives the driving gear (269) fixedly connected to the drive shaft (268) to rotate. Since the driving gear (269) is meshed with the two sets of driven gears (2610), and the driven gears (2610) are rotatably connected to the inner wall of the U-shaped box (266) through the bearing seat (2611), The screw rod (264) fixedly connected to the two sets of driven gears (2610) can rotate synchronously. After the threaded sleeve (263) threadedly connected to the screw rod (264) is limited by the sliding rod (261) and the sliding sleeve (262), the cleaning scraper (265) can move on the surface of the filter screen (24) and the activated carbon layer (25). Impurities will push the movable sealing door (27) to open, so that the impurities on the filter screen (24) and the activated carbon layer (25) fall off and are collected in the waste collection box (17); S4: Finally, after the purified liquid in the purified liquid storage chamber (18) has been used for a period of time, the PLC controller (3) controls the return liquid pump (800) on the recovery component (8) to operate. The operation of the return liquid pump (800) can generate suction in the reflux pipe (801), so that the purified liquid in the purified liquid storage chamber (18) can be recovered into the purification box (802). The first filter plate, the second filter plate and the activated carbon plate of the purification structure (803) filter and purify the purified liquid. Finally, the purified purified liquid is collected into the liquid storage tank (7) through the recovery pipe (804), thereby realizing the recycling of the purified liquid and reducing the cost of waste gas treatment.

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