Waste gas treatment device

Abstract

The invention belongs to the technical field of flue gas treatment, and particularly relates to a waste gas treatment device which comprises a moving box and a control panel arranged on the outer wall of the left side of the moving box, a PLC is fixedly connected to the inner wall of the left side of the moving box, and self-locking wheels are fixedly connected to the four corners of the lower side wall of the moving box. When the waste gas treatment device is used for treating waste gas, carbon monoxide, hydrocarbon and nitric oxide in the waste gas can be fully absorbed, so that the problem that the surrounding environment is damaged by the carbon monoxide, the hydrocarbon and the nitric oxide in the waste gas is avoided, and the waste gas of a factory reaches the emission standard; and after the waste gas treatment device works for a long time and the filter assembly is blocked, the filter assembly can be automatically backwashed by using high-pressure airflow, so that particulate matters blocked in the filter assembly fall off, and the adsorption effect of the waste gas treatment device is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of flue gas treatment, and in particular relates to a waste gas treatment device. Background Art

[0002] Many factories require a large amount of heat energy and power in the production process, which are usually met by burning fossil fuels such as coal, oil, and natural gas. Due to the limitations of factors such as the performance of the combustion equipment and combustion conditions, the fuel is often not completely burned. For example, in some old industrial boilers, the combustion efficiency is low, and a large amount of particulate matter, carbon monoxide, nitrogen oxides and other incomplete combustion products are easily generated. These substances will be mixed with the exhaust gas and discharged, causing pollution to the surrounding environment. Therefore, these exhaust gases need to be treated. For example, a waste gas treatment device and a waste gas treatment system are proposed in patent announcement number CN111957171A.

[0003] In factories, exhaust gas is transported to professional treatment equipment through pipes for treatment. However, once the pipes are poorly sealed or damaged, the exhaust gas in the pipes will escape into the surrounding environment. At this time, a treatment device is needed to collect and treat the escaped exhaust gas. Existing exhaust gas treatment devices often use adsorption components such as activated carbon filters when treating harmful substances in exhaust gas. However, it should be noted that activated carbon is a non-polar adsorbent, which tends to adsorb non-polar substances, while carbon monoxide, nitrogen oxides, and hydrocarbons are weakly polar molecules. Therefore, the physical adsorption effect of activated carbon on these substances is relatively weak, and it is difficult to completely remove such harmful substances. In addition, during use, particulate matter in the exhaust gas will clog the pores of the activated carbon filter, and users usually find it difficult to detect this blockage in time and replace it, which leads to a decrease in the adsorption effect of the exhaust gas treatment device.

[0004] Therefore, an exhaust gas treatment device is proposed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide an exhaust gas treatment device in view of the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions: an exhaust gas treatment device, comprising a mobile box and a control panel arranged on the left outer wall of the mobile box, a PLC controller is fixedly connected to the left inner wall of the mobile box, and self-locking wheels are fixedly connected at the four corners of the lower side wall of the mobile box, and also includes: An air pump is connected to the right side wall of the mobile box, the air inlet end of the air pump is rotatably connected to a bend pipe, the upper end of the bend pipe is fixedly connected to a suction disk, the inner wall of the mobile box is fixedly connected to an upper sealing plate and a lower sealing plate, the air outlet end of the air pump is located between the upper sealing plate and the lower sealing plate, and a filter assembly is provided between the upper sealing plate and the lower sealing plate; A vertical plate is fixedly connected between the upper sealing plate and the lower sealing plate, and a side wall of the vertical plate is connected to a sensing component, and the sensing component is electrically connected to the filter component through a PLC controller; A nitrogen oxide treatment component is fixedly connected to the upper side wall of the upper sealing plate, and the upper sealing plate and the nitrogen oxide treatment component are fixedly connected to a same intake pipe; The carbon monoxide treatment component is fixedly connected to the right inner wall of the mobile box, and the carbon monoxide treatment component and the nitrogen oxide treatment component are connected by the same air pipeline.

[0007] Preferably, the filter assembly includes an activated carbon filter and a linear motor, the activated carbon filter is fixedly connected between the upper sealing plate and the lower sealing plate, the linear motor is fixedly connected to the rear inner wall of the movable box, the rear inner wall of the movable box is fixedly connected to a high-pressure air pump, the air outlet end of the high-pressure air pump is connected to an air blowing pipe, the right end of the air blowing pipe is connected to an air distribution pipe, the movable end of the linear motor is connected to the air blowing pipe, the upper side wall of the air blowing pipe is connected to a knocking assembly, the side wall of the lower sealing plate is fixedly connected to a collecting cover, the lower side wall of the collecting cover is connected to a square cylinder, the inner wall of the square cylinder is rotatably connected to a roller, the side wall of the roller is provided with a plurality of collecting grooves, the rear side wall of the square cylinder is fixedly connected to a driving motor, the output end of the driving motor passes through the square cylinder and is fixedly connected to the roller, and the left side wall of the movable box is plugged with a dust collecting hood located below the square cylinder.

[0008] Preferably, the knocking assembly includes a horizontal box and a placement plate, the horizontal box and the upper side wall of the blowing tube are fixedly connected, the placement plate is fixedly connected to the inner wall of the horizontal box, the side wall of the placement plate is provided with a horizontal hole, and a horizontal pin is inserted in the horizontal hole, the right end of the horizontal pin extends out of the horizontal box and is fixedly connected to a knocking ball, the left end of the horizontal pin is fixedly connected to a square plate, the square plate and the placement plate are fixedly connected with the same spring, the lower inner wall of the horizontal box is fixedly connected to a knocking motor, and the output end of the knocking motor is fixedly connected to a camshaft.

[0009] Preferably, the sensing component includes a pneumatic cylinder and a pneumatic block, the pneumatic cylinder is connected to the vertical plate, the pneumatic block is fixedly connected to the left inner wall of the pneumatic cylinder through a spring, an air outlet is provided on the upper side wall of the pneumatic cylinder, a conductive frame is fixedly connected to the left side wall of the pneumatic block, the conductive frame is electrically connected to an external power supply, a conductive plate is inlaid on the upper inner wall of the pneumatic cylinder, and the conductive plate is electrically connected to a PLC controller.

[0010] Preferably, the nitrogen oxide treatment component includes a treatment box, which is fixedly connected to the upper side wall of the upper sealing plate, the upper end of the air inlet pipe is connected to the upper side wall of the treatment box, the upper side wall of the treatment box is plugged with an inlet pipe and a discharge pipe, the inlet pipe is connected to an external sodium hydroxide solution storage tank through a pump assembly, the discharge pipe is connected to a waste liquid tank through a pump assembly, and two liquid level sensors are fixedly connected to the inner wall of the treatment box, and the two liquid level sensors are electrically connected to the PLC controller.

[0011] Preferably, the carbon monoxide treatment component includes a combustion box, which is fixedly connected to the right inner wall of the mobile box, an annular cavity is opened inside the combustion box, the upper end of the gas pipe is connected to the annular cavity, and the lower end is connected to the treatment box, the side wall of the annular cavity is connected to a plurality of exhaust heads located in the combustion box, the right side wall of the mobile box is fixedly connected to a gas tank, the right inner wall of the mobile box is fixedly connected to a gas pump, the air inlet end of the gas pump passes through the mobile box and is connected to the gas tank, the air outlet end of the gas pump passes through the combustion box and is fixedly connected to a combustion disk, the upper side wall of the combustion disk is fixedly connected to an igniter, and the upper side wall of the combustion box is connected to an exhaust pipe.

[0012] Preferably, the upper side wall of the moving box is fixedly connected to a cold water tank, the upper inner wall of the moving box is fixedly connected to a water supply pump, the water inlet end of the water supply pump passes through the moving box and is connected to the cold water tank, the water outlet end of the water supply pump is fixedly connected to a drain pipe, the lower end of the drain pipe passes through the combustion box and is fixedly connected to a spiral tube, the lower end of the spiral tube passes through the combustion box, the upper side wall of the upper sealing plate is fixedly connected to a warm water tank, the lower end of the spiral tube is connected to the warm water tank, the right side wall of the warm water tank is connected to a horizontal pipe, and a valve is provided in the horizontal pipe.

[0013] Preferably, the exhaust pipe is spirally wound outside the drain pipe, the outer wall of the suction disc is fixedly sleeved with a ring pipe, and the lower side wall of the ring pipe is fixedly connected to a plurality of impact-type atomizing nozzles, and the upper end of the exhaust pipe passes through the movable box and is connected to the ring pipe.

[0014] Compared with the existing technology, the advantages of an exhaust gas treatment device are: By setting up the nitrogen oxide treatment component and the carbon monoxide treatment component, when the exhaust gas is treated by the exhaust gas treatment device, the carbon monoxide, hydrocarbons and nitrogen oxides in the exhaust gas can be fully absorbed, thereby avoiding the problem of carbon monoxide, hydrocarbons and nitrogen oxides in the exhaust gas causing damage to the surrounding environment, and making the factory's exhaust gas meet the emission standards.

[0015] By setting up the filter component and the sensor component, the exhaust gas treatment device can work for a long time. When the filter component is blocked, the filter component can be automatically backwashed by high-pressure airflow to make the particles blocked inside the filter component fall off, and the fallen particles can be automatically collected to ensure the adsorption effect of the exhaust gas treatment device.

[0016] By setting up the carbon monoxide treatment component, combustion box, exhaust head, annular cavity, gas tank, gas pump, combustion plate, igniter, exhaust pipe, cold water tank, water pump, drain pipe, spiral pipe, warm water tank, horizontal pipe, ring pipe and impact atomizing nozzle, when the exhaust gas treatment device adsorbs the exhaust gas, the water condensed after the combustion of carbon monoxide and hydrocarbons can be turned into mist and sprayed into the exhaust gas, thereby reducing the temperature of the flue gas. For subsequent processing equipment and pipelines, this can reduce the damage to the equipment caused by high temperature and extend the service life of the equipment.

[0017] By setting up the knocking component, when cleaning the particles clogging the surface of the activated carbon filter, the activated carbon filter can be knocked during the process of high-pressure blowing on the activated carbon filter, so that all the particles clogging the surface of the activated carbon filter fall off, ensuring the single-time cleaning efficiency of the particles on the surface of the activated carbon filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an exhaust gas treatment device provided by the present invention; Figure 2 It is a structural schematic diagram of a carbon monoxide treatment component in a waste gas treatment device provided by the present invention; Figure 3 It is a schematic diagram of the surface structure of a combustion disk in a waste gas treatment device provided by the present invention; Figure 4 The invention provides a waste gas treatment device Figure 1 an enlarged schematic diagram of part A; Figure 5 It is a right side cross-sectional view of a square cylinder of an exhaust gas treatment device provided by the present invention; Figure 6 It is a structural schematic diagram of a sensing component in an exhaust gas treatment device provided by the present invention; Figure 7 It is a structural schematic diagram of a knocking component in a waste gas treatment device provided by the present invention.

[0019] In the figure: 1 mobile box, 2 control panel, 3 PLC controller, 4 self-locking wheel, 5 vacuum pump, 6 elbow, 7 suction disc, 8 upper sealing plate, 9 lower sealing plate, 10 vertical plate, 11 air inlet pipe, 12 air delivery pipe, 13 filter assembly, 131 activated carbon filter, 132 linear motor, 14 high-pressure air pump, 15 air blowing pipe, 16 air distribution pipe, 17 collection cover, 18 square cylinder, 19 roller, 20 collection tank, 21 drive motor, 22 dust cover, 23 knocking assembly, 231 horizontal box, 232 placement plate, 24 horizontal hole, 25 horizontal pin, 26 knocking ball, 27 square plate, 28 knocking motor , 29 camshaft, 30 sensing component, 301 air cylinder, 302 air pressure block, 31 air outlet, 32 conductive frame, 33 conductive plate, 34 nitrogen oxide treatment component, 341 treatment box, 342 liquid inlet pipe, 35 discharge pipe, 36 liquid level sensor, 37 carbon monoxide treatment component, 371 combustion box, 372 exhaust head, 38 annular cavity, 39 gas tank, 40 gas pump, 41 combustion disk, 42 ​​igniter, 43 exhaust pipe, 44 cold water tank, 45 water pump, 46 drain pipe, 47 spiral pipe, 48 warm water tank, 49 horizontal pipe, 50 ring pipe, 51 impact atomizing nozzle. Implementation

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] like Figure 1-Figure 7 As shown, an exhaust gas treatment device includes a mobile box 1 and a control panel 2 arranged on the left outer wall of the mobile box 1, a PLC controller 3 is fixedly connected to the left inner wall of the mobile box 1, and self-locking wheels 4 are fixedly connected at the four corners of the lower side wall of the mobile box 1, and also includes: The vacuum pump 5 is connected to the right side wall of the mobile box 1. The air inlet end of the vacuum pump 5 is rotatably connected to a bend pipe 6. The upper end of the bend pipe 6 is fixedly connected to a suction disk 7. The inner wall of the mobile box 1 is fixedly connected to an upper sealing plate 8 and a lower sealing plate 9. The air outlet end of the vacuum pump 5 is located between the upper sealing plate 8 and the lower sealing plate 9. A filter assembly 13 is provided between the upper sealing plate 8 and the lower sealing plate 9. The filter assembly 13 includes an activated carbon filter screen 131 and a linear motor 132. The activated carbon filter screen 131 is fixedly connected between the upper sealing plate 8 and the lower sealing plate 9. The linear motor 132 is fixedly connected to the mobile box 1 The rear inner wall of the mobile box 1 is fixedly connected with a high-pressure air pump 14, the air outlet end of the high-pressure air pump 14 is connected with an air blowing pipe 15, the right end of the air blowing pipe 15 is connected with an air distribution pipe 16, the moving end of the linear motor 132 is connected with the air blowing pipe 15, the upper side wall of the air blowing pipe 15 is connected with a knocking assembly 23, the side wall of the lower sealing plate 9 is fixedly connected with a collecting cover 17, the lower side wall of the collecting cover 17 is connected with a square cylinder 18, the inner wall of the square cylinder 18 is rotatably connected with a roller 19, the side wall of the roller 19 is provided with a plurality of collecting grooves 20, and the rear side wall of the square cylinder 18 is fixedly connected with a driving motor 21, The output end of the driving motor 21 passes through the square cylinder 18 and is fixedly connected to the roller 19. The left side wall of the mobile box 1 is plugged with a dust collecting hood 22 located below the square cylinder 18, which can filter particulate matter in the exhaust gas. The knocking assembly 23 includes a horizontal box 231 and a placement plate 232. The horizontal box 231 is fixedly connected to the upper side wall of the blowing pipe 15. The placement plate 232 is fixedly connected to the inner wall of the horizontal box 231. The side wall of the placement plate 232 is provided with a horizontal hole 24, and a horizontal pin 25 is inserted in the horizontal hole 24. The right end of the horizontal pin 25 extends out of the horizontal box 231 and is fixedly connected with a knocking ball 26. The horizontal pin 25 A square plate 27 is fixedly connected to the left end, and a same spring is fixedly connected between the square plate 27 and the placement plate 232. A knocking motor 28 is fixedly connected to the lower inner wall of the horizontal box 231, and a camshaft 29 is fixedly connected to the output end of the knocking motor 28. When cleaning the particles blocked on the surface of the activated carbon filter 131, the activated carbon filter 131 can be knocked during the high-pressure blowing of the activated carbon filter 131, so that all the blocked particles on the surface of the activated carbon filter 131 fall off, ensuring the single cleaning efficiency of the particles on the surface of the activated carbon filter 131. The vertical plate 10 is fixedly connected between the upper sealing plate 8 and the lower sealing plate 9. The side wall of the vertical plate 10 is connected with the sensing component 30. The sensing component 30 is electrically connected to the filter component 13 through the PLC controller 3. The sensing component 30 includes a pressure cylinder 301 and a pressure block 302. The pressure cylinder 301 is connected with the vertical plate 10. The pressure block 302 is fixedly connected to the left inner wall of the pressure cylinder 301 through a spring. An air outlet 31 is provided on the upper side wall of the pressure cylinder 301. The left side wall of the pressure block 302 is fixedly connected with a conductive frame 32. The conductive frame 32 is electrically connected to an external power supply. The upper inner wall of the pressure cylinder 301 is inlaid with a conductive plate 33. The conductive plate 33 is electrically connected to the PLC controller 3, and can detect the blockage of the activated carbon filter 131. The nitrogen oxide treatment component 34 is fixedly connected to the upper side wall of the upper sealing plate 8. The upper sealing plate 8 and the nitrogen oxide treatment component 34 are fixedly connected to the same intake pipe 11. The nitrogen oxide treatment component 34 includes a treatment box 341. The treatment box 341 is fixedly connected to the upper side wall of the upper sealing plate 8. The upper end of the intake pipe 11 is connected to the upper side wall of the treatment box 341. The upper side wall of the treatment box 341 is plugged with an inlet pipe 342 and a discharge pipe 35. The inlet pipe 342 is connected to an external sodium hydroxide solution storage tank through a pump assembly, and the discharge pipe 35 is connected to an external waste liquid tank through a pump assembly. Two liquid level sensors 36 are fixedly connected to the inner wall of the treatment box 341. The two liquid level sensors 36 are electrically connected to the PLC controller 3, and can treat nitrogen oxides in the exhaust gas; The carbon monoxide treatment component 37 is fixedly connected to the right inner wall of the mobile box 1. The carbon monoxide treatment component 37 and the nitrogen oxide treatment component 34 are connected by the same gas pipeline 12. The carbon monoxide treatment component 37 includes a combustion box 371. The combustion box 371 is fixedly connected to the right inner wall of the mobile box 1. An annular cavity 38 is opened inside the combustion box 371. The upper end of the gas pipeline 12 is connected to the annular cavity 38, and the lower end is connected to the treatment box 341. The side wall of the annular cavity 38 is connected to a plurality of gas pipelines located at the combustion box 371. An exhaust head 372 in the burning box 371, a gas tank 39 is fixedly connected to the right side wall of the mobile box 1, a gas pump 40 is fixedly connected to the right inner wall of the mobile box 1, an air inlet end of the gas pump 40 passes through the mobile box 1 and is connected to the gas tank 39, an air outlet end of the gas pump 40 passes through the burning box 371 and is fixedly connected to a burning disk 41, an igniter 42 is fixedly connected to the upper side wall of the burning disk 41, and an exhaust pipe 43 is connected to the upper side wall of the burning box 371, which can process carbon monoxide in the exhaust gas.

[0022] A cold water tank 44 is fixedly connected to the upper side wall of the mobile box 1, a water pump 45 is fixedly connected to the upper inner wall of the mobile box 1, the water inlet end of the water pump 45 passes through the mobile box 1 and is connected to the cold water tank 44, the water outlet end of the water pump 45 is fixedly connected to a drain pipe 46, the lower end of the drain pipe 46 passes through the combustion box 371, and is fixedly connected to a spiral tube 47, the lower end of the spiral tube 47 passes through the combustion box 371, the upper side wall of the upper sealing plate 8 is fixedly connected to a warm water tank 48, the lower end of the spiral tube 47 is connected to the warm water tank 48, the right side wall of the warm water tank 48 is connected to a horizontal pipe 49, and a valve is provided in the horizontal pipe 49, which can use heat to heat the cold water for the convenience of subsequent use by the operator.

[0023] The exhaust pipe 43 is spirally wound around the drain pipe 46, and the outer wall of the suction disk 7 is fixedly sleeved with a ring pipe 50, and the lower side wall of the ring pipe 50 is fixedly connected to a plurality of impact-type atomizing nozzles 51. The upper end of the exhaust pipe 43 passes through the mobile box 1 and is connected to the ring pipe 50. When the exhaust gas treatment device adsorbs the exhaust gas, the moisture condensed after the combustion of carbon monoxide can be turned into mist and sprayed onto the exhaust gas, thereby reducing the temperature of the flue gas. For subsequent processing equipment and pipelines, this can reduce the damage to the equipment caused by high temperature and extend the service life of the equipment.

[0024] The operating principle of the present invention is now described as follows: the treatment device is moved to the area where the exhaust gas escapes, and then the elbow 6 and the suction disk 7 are rotated to align the suction disk 7 with the area where the exhaust gas escapes. Then the operator transmits a start signal to the PLC controller 3 through the control panel 2. After receiving the start signal, the PLC controller 3 first controls the vacuum pump 5 to work, and the vacuum pump 5 transports the exhaust gas and harmful substances in the exhaust gas to the mobile box 1. When the exhaust gas passes through the activated carbon filter 131, the particulate matter in the exhaust gas will be filtered out by the activated carbon filter 131, and thus attached to the activated carbon filter 131. The exhaust gas treated by the activated carbon filter 131 will enter The air pressure on the right side of the air pressure block 302 increases, and the air pressure block 302 drives the conductive frame 32 to move to the left under the push of the air pressure, so that the air outlet 31 above the air pressure block 302 is exposed, and a part of the gas will be discharged through the air outlet 31. At this time, the exhaust speed of the air outlet 31 is lower than the air intake speed in the air pressure cylinder 301, and the air pressure block 302 will continue to move to the left until the air outlet 31 is fully opened. At this time, the air pressure on the air pressure block 302 is the same as the thrust of the spring, and the air pressure block 302 will stop moving. At this time, the air pressure block 302 will drive the conductive frame 32 and the conductive plate 33 to separate, which is convenient for subsequent detection of the movement of the air pressure block 302. The exhaust gas discharged from the air outlet 31 will be transported to the treatment box 341 through the air inlet pipe 11. At this time, the treatment box 341 is filled with sodium hydroxide solution. After the exhaust gas passes through the sodium hydroxide solution, the nitrogen oxides in the exhaust gas will react with the sodium hydroxide solution. The chemical equation for the reaction between nitrogen oxides and sodium hydroxide is: 2NaOH+2NOx=(2x-3)NaNO3+(5-2x)NaNO2+H2O, where x represents the number of nitrogen atoms in the nitrogen oxides. After the exhaust gas passes through the treatment box 341, the nitrogen oxides in the exhaust gas will be fully cleaned up. The treated exhaust gas will be transported to the annular cavity 38 through the air delivery pipe 12 and passed through multiple exhaust The exhaust gas is discharged from the head 372. While the vacuum pump 5 is working, the PLC controller 3 controls the gas delivery pump 40 and the igniter 42 to work together. The gas delivery pump 40 delivers the gas in the gas tank 39 to the combustion disk 41 and discharges it (a backfire preventer is provided in the gas delivery pump 40 to prevent the flame from entering the gas tank 39 through the pipeline and causing an explosion). At the same time, the igniter 42 ignites the gas. After the exhaust gas is delivered to the combustion box 371, the flame on the surface of the combustion disk 41 will burn the carbon monoxide in the exhaust gas. When carbon monoxide burns in the air, it generates carbon dioxide. The combustion equation is 2CO+O2=2CO2. The combustion equation of hydrocarbons can be expressed as: CXHy +( X+ Y / 4)O2= xCO2+ Y / 2H2O, where CXHy represents hydrocarbons, X and Y represent the number of carbon atoms and hydrogen atoms respectively. After the combustion of carbon monoxide and hydrocarbons, carbon dioxide and water will be produced. Due to the high temperature inside the combustion box 371, water exists in the form of water vapor. Carbon dioxide and water vapor will be discharged from the combustion box 371 through the exhaust pipe 43. While the air pump 40 is working, the PLC controller 3 will also control the water pump 45 to work. The water pump 45 will transport the cold water in the cold water tank 44 to the spiral tube 47 through the drain pipe 46. After being heated by the flame, it will be transported to the warm water tank 48 for storage, which is convenient for operators. When hot water is used in winter, since the exhaust pipe 43 is spirally wound around the outside of the drain pipe 46, the cold water, when being transported by the drain pipe 46, will utilize the low temperature of the cold water to cool down the high-temperature carbon dioxide and water vapor in the exhaust pipe 43. After cooling, the water vapor will condense into liquid water, which will be transported into the ring pipe 50 under the impetus of the gas and sprayed out through the impact atomizing nozzle 51 (the impact atomizing nozzle 51 is arranged to face outward to avoid the water mist being absorbed by the suction disk 7 as soon as it is sprayed), thereby reducing the temperature of the flue gas. This can reduce the damage to the subsequent processing equipment and pipelines caused by high temperature and extend the service life of the equipment; After the activated carbon filter 131 has been used for a long time, the gaps in the activated carbon filter 131 will be inlaid with more particles, thereby reducing the permeability of the activated carbon filter 131. The gas entering the air pressure cylinder 301 per unit time will become less, and the air pressure on the right side of the air pressure block 302 will become smaller. The air pressure block 302 will move to the right under the push of the spring, and the air pressure block 302 will block the air outlet 31 to shrink the air outlet 31. The air outlet efficiency of the air outlet 31 will be the same as the air intake efficiency of the air pressure cylinder 301. When the air pressure block 302 moves to the right, the air pressure block 302 will drive the conductive frame 32 to contact the conductive plate 33. One minute after the vacuum pump 5 starts working, the PLC controller 3 will control the conductive frame 32 and the conductive plate 33 to contact each other. The external power supply is electrically connected, and the conductive plate 33 and the PLC controller 3 are electrically connected. When the conductive frame 32 and the conductive plate 33 are in contact, an electrical signal will be transmitted to the PLC controller 3. After receiving the electrical signal, the PLC controller 3 will control the high-pressure air pump 14, the linear motor 132 and the knocking motor 28 to work together. The air inlet end of the high-pressure air pump 14 is connected to the outside world. The high-pressure air pump 14 transmits external gas to the air distribution pipe 16 through the air blowing pipe 15, and blows it to the activated carbon filter 131 through the air distribution pipe 16. The activated carbon filter 131 is recoiled by the air distribution pipe 16. At the same time, the linear motor 132 drives the air distribution pipe 16 to move up and down (the air distribution pipe 16 is arranged longitudinally, and a plurality of air outlets are provided on the surface). Thereby, the activated carbon filter 131 is fully rinsed, and the knocking motor 28 drives the camshaft 29 to rotate. The camshaft 29 will continuously squeeze the square plate 27 during the rotation. The square plate 27 will drive the knocking ball 26 to move to the right through the cross pin 25, and the activated carbon filter 131 is knocked by the knocking ball 26. When the camshaft 29 and the square plate 27 are separated, the square plate 27 will drive the cross pin 25 and the knocking ball 26 to move to the left together under the fixing action of the spring, so as to realize the reciprocating extension and contraction of the knocking ball 26, thereby realizing the knocking effect of the knocking ball 26 on the activated carbon filter 131, thereby increasing the falling speed of dust on the surface of the activated carbon filter 131, and the dust falling from the surface of the activated carbon filter 131 will fall into the collection cover 17 and will fall off When the particles fall into the square cylinder 18, the PLC controller 3 will control the drive motor 21 to work, and the drive motor 21 will drive the roller 19 to rotate. After the particles fall into the collecting groove 20 on the surface of the roller 19 and rotate to the bottom, a large amount of particles will condense into a mass, and will fall into the dust cover 22 for storage under the action of gravity. When the activated carbon filter 131 is cleaned, the permeability of the activated carbon filter 131 will increase significantly. Referring to the above principle, the air pressure block 302 will drive the conductive frame 32 to continue to move to the left, thereby separating the conductive frame 32 and the conductive plate 33. After detecting that the electrical signal of the conductive plate 33 is disconnected, the PLC controller 3 will control the high-pressure air pump 14, the linear motor 132 and the knocking motor 28 to stop working at the same time.

[0025] 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. An exhaust gas treatment device, comprising a mobile box (1) and a control panel (2) arranged on the left outer wall of the mobile box (1), a PLC controller (3) being fixedly connected to the left inner wall of the mobile box (1), and self-locking wheels (4) being fixedly connected at the four corners of the lower side wall of the mobile box (1), characterized in that: Also includes: An air pump (5) is connected to the right side wall of the mobile box (1); the air inlet end of the air pump (5) is rotatably connected to a curved pipe (6); the upper end of the curved pipe (6) is fixedly connected to an air suction plate (7); the inner wall of the mobile box (1) is fixedly connected to an upper sealing plate (8) and a lower sealing plate (9); the air outlet end of the air pump (5) is located between the upper sealing plate (8) and the lower sealing plate (9); a filter assembly (13) is provided between the upper sealing plate (8) and the lower sealing plate (9); a vertical plate (10) is fixedly connected between the upper sealing plate (8) and the lower sealing plate (9); the vertical plate The side wall of the mobile box (10) is connected to a sensing component (30), and the sensing component (30) is electrically connected to the filter component (13) through a PLC controller (3); a nitrogen oxide treatment component (34) is fixedly connected to the upper side wall of the upper sealing plate (8), and the upper sealing plate (8) and the nitrogen oxide treatment component (34) are fixedly connected to a same air intake pipe (11); a carbon monoxide treatment component (37) is fixedly connected to the right inner wall of the mobile box (1), and the carbon monoxide treatment component (37) and the nitrogen oxide treatment component (34) are connected to a same air supply pipe (12).

2. The exhaust gas treatment device according to claim 1, characterized in that: The filter assembly (13) comprises an activated carbon filter (131) and a linear motor (132); the activated carbon filter (131) is fixedly connected between an upper sealing plate (8) and a lower sealing plate (9); the linear motor (132) is fixedly connected to the rear inner wall of the mobile box (1); the rear inner wall of the mobile box (1) is fixedly connected to a high-pressure air pump (14); the air outlet end of the high-pressure air pump (14) is connected to an air blowing pipe (15); the right end of the air blowing pipe (15) is connected to an air distribution pipe (16); the moving end of the linear motor (132) is connected to the air blowing pipe (15); the air blowing pipe (15) is connected to the moving end of the linear motor (132); and the air blowing pipe (15) is connected to the moving end of the linear motor (132). ) is connected to a knocking assembly (23), the side wall of the lower sealing plate (9) is fixedly connected to a collecting hood (17), the lower side wall of the collecting hood (17) is connected to a square tube (18), the inner wall of the square tube (18) is rotatably connected to a roller (19), the side wall of the roller (19) is provided with a plurality of collecting grooves (20), the rear side wall of the square tube (18) is fixedly connected to a driving motor (21), the output end of the driving motor (21) passes through the square tube (18) and is fixedly connected to the roller (19), and the left side wall of the mobile box (1) is plugged with a dust collecting hood (22) located below the square tube (18).

3. The exhaust gas treatment device according to claim 2, characterized in that: The knocking assembly (23) comprises a horizontal box (231) and a placement plate (232). The horizontal box (231) is fixedly connected to the upper side wall of the blowing pipe (15). The placement plate (232) is fixedly connected to the inner wall of the horizontal box (231). A horizontal hole (24) is formed on the side wall of the placement plate (232). A horizontal pin (25) is inserted into the horizontal hole (24). The right end of the horizontal pin (25) extends out of the horizontal box (231) and is fixedly connected to a knocking ball (26). The left end of the horizontal pin (25) is fixedly connected to a square plate (27). The square plate (27) and the placement plate (232) are fixedly connected to the same spring. A knocking motor (28) is fixedly connected to the lower inner wall of the horizontal box (231). The output end of the knocking motor (28) is fixedly connected to a camshaft (29).

4. The exhaust gas treatment device according to claim 1, characterized in that: The sensing component (30) comprises a pneumatic cylinder (301) and a pneumatic block (302); the pneumatic cylinder (301) is connected to the vertical plate (10); the pneumatic block (302) is fixedly connected to the left inner wall of the pneumatic cylinder (301) via a spring; an air outlet (31) is provided on the upper side wall of the pneumatic cylinder (301); a conductive frame (32) is fixedly connected to the left wall of the pneumatic block (302); the conductive frame (32) is electrically connected to an external power supply; a conductive plate (33) is inlaid on the upper inner wall of the pneumatic cylinder (301); and the conductive plate (33) is electrically connected to a PLC controller (3).

5. The exhaust gas treatment device according to claim 1, characterized in that: The nitrogen oxide treatment component (34) comprises a treatment box (341), the treatment box (341) being fixedly connected to the upper side wall of the upper sealing plate (8), the upper end of the air inlet pipe (11) being in communication with the upper side wall of the treatment box (341), the upper side wall of the treatment box (341) being plugged with a liquid inlet pipe (342) and a liquid discharge pipe (35), the liquid inlet pipe (342) being in communication with an external sodium hydroxide solution storage tank via a pump assembly, the liquid discharge pipe (35) being in communication with a waste liquid tank via a pump assembly, and the inner wall of the treatment box (341) being fixedly connected with two liquid level sensors (36), both of which being electrically connected to the PLC controller (3).

6. The exhaust gas treatment device according to claim 1, characterized in that: The carbon monoxide treatment assembly (37) comprises a combustion box (371), the combustion box (371) being fixedly connected to the right inner wall of the mobile box (1), an annular cavity (38) being provided inside the combustion box (371), the upper end of the gas delivery pipe (12) being connected to the annular cavity (38), and the lower end being connected to the treatment box (341), the side wall of the annular cavity (38) being connected to a plurality of exhaust headers (372) located in the combustion box (371), and the right inner wall of the mobile box (1) being connected to the right inner wall of the mobile box (1). A gas tank (39) is fixedly connected to the wall, a gas pump (40) is fixedly connected to the right inner wall of the mobile box (1), an air inlet end of the gas pump (40) passes through the mobile box (1) and is connected to the gas tank (39), an air outlet end of the gas pump (40) passes through the combustion box (371) and is fixedly connected to a combustion disk (41), an igniter (42) is fixedly connected to the upper side wall of the combustion disk (41), and an exhaust pipe (43) is connected to the upper side wall of the combustion box (371).

7. The exhaust gas treatment device according to claim 1, characterized in that: The upper side wall of the mobile box (1) is fixedly connected to a cold water tank (44), the upper inner wall of the mobile box (1) is fixedly connected to a water supply pump (45), the water inlet end of the water supply pump (45) passes through the mobile box (1) and is connected to the cold water tank (44), the water outlet end of the water supply pump (45) is fixedly connected to a drain pipe (46), the lower end of the drain pipe (46) passes through the combustion box (371) and is fixedly connected to a spiral pipe (47), the lower end of the spiral pipe (47) passes through the combustion box (371), the upper side wall of the upper sealing plate (8) is fixedly connected to a warm water tank (48), the lower end of the spiral pipe (47) is connected to the warm water tank (48), the right side wall of the warm water tank (48) is connected to a transverse pipe (49), and a valve is provided in the transverse pipe (49).

8. The exhaust gas treatment device according to claim 6, characterized in that: The exhaust pipe (43) is spirally wound outside the drain pipe (46); a ring pipe (50) is fixedly sleeved on the outer wall of the air suction plate (7); and a plurality of impact-type atomizing nozzles (51) are fixedly connected to the lower wall of the ring pipe (50); the upper end of the exhaust pipe (43) passes through the mobile box (1) and is connected to the ring pipe (50).

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