A kind of all-in-one machine for treating paint waste gas

Abstract

The present invention belongs to the technical field of waste gas separation and purification, and in particular, relates to an integrated machine for treating waste gas from spray painting, including a treatment box and a waste gas inlet pipe fixedly plugged into the lower end of the side wall of the treatment box, and also includes: a magnetic isolation plate, the magnetic isolation plate is fixedly arranged inside the treatment box, and the magnetic isolation plate is arranged above the exhaust end of the waste gas inlet pipe, and the end face of the magnetic isolation plate is provided with a plurality of cavities; a plurality of concentration units are arranged inside corresponding cavities, and the air inlet end of each concentration exhaust unit is connected to the waste gas inlet pipe through the treatment box, and each of the concentration units is provided with an exhaust mechanism. The present invention can quickly separate the paint mist particles by separate air intake and separate compression, thereby reducing material consumption, and can improve the treatment effect of the waste gas from spray painting by combining adsorption and decomposition. At the same time, the adsorbed activated carbon filler can be automatically replaced based on the concentration of VOCs in the waste gas.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste gas separation and purification, and in particular relates to an all-in-one machine for treating waste gas from painting. Background Art

[0002] Painting operations are widely used in the automotive, furniture and other industries. A large amount of exhaust gas will be generated during the painting process, including volatile organic compounds such as benzene, toluene, xylene, and paint mist particles. If these exhaust gases are directly discharged without effective treatment, they will cause serious pollution to the atmospheric environment, affecting the surrounding ecology and human health. Therefore, the paint exhaust gas needs to be treated.

[0003] At present, paint exhaust generally contains paint particles (paint mist generated during painting) and volatile gases (VOCs) generated by the paint. These are generally treated by absorption liquid or activated carbon adsorption, photolysis purification, etc., such as the one disclosed in patent publication number CN214020050U, which is an all-in-one paint exhaust treatment machine.

[0004] However, when separating the paint particles in the paint exhaust gas by forming a water curtain with an absorbing liquid, a large amount of absorbing liquid will be wasted due to the need for continuous delivery of the absorbing liquid. Secondly, during the painting operation, the painting operation is not continuous and stable (for example, after the painting of a part is completed, a certain period of time will pass before the next painting operation begins), resulting in the waste gas content in the paint exhaust gas being unstable, which in turn makes it impossible for personnel to replace the absorbing liquid or activated carbon in a good time. Replacing it too early will lead to unnecessary waste, and replacing it too late will affect the separation and purification effect of the exhaust gas. Summary of the Invention

[0005] The purpose of the present invention is to provide an all-in-one machine for treating paint waste gas in order to solve the above problems.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: a paint spraying exhaust gas treatment integrated machine, comprising a treatment box and an exhaust gas inlet pipe fixedly plugged into the lower end of the side wall of the treatment box, and further comprising:

[0007] A magnetic isolation plate is fixedly arranged inside the treatment box and is arranged above the exhaust gas inlet and outlet ends of the exhaust gas pipe, and a plurality of cavities are formed on the end surface of the magnetic isolation plate;

[0008] Multiple concentration units are arranged inside corresponding cavities, and the air inlet end of each concentration exhaust unit is connected to the exhaust gas inlet pipe through the processing box, and each concentration unit is provided with an exhaust mechanism;

[0009] A top plate is fixedly arranged on the upper side of the interior of the processing box, and the top plate is arranged above the magnetic isolation plate;

[0010] A detection unit is mounted on the end surface of the top plate and is connected to each exhaust mechanism through a processing box;

[0011] an adsorption unit, disposed at the top outer edge of the top plate and connected to the detection unit;

[0012] An air outlet mechanism is provided inside the processing box and is connected to the air outlet end of each adsorption unit;

[0013] The tail gas purification unit is arranged on the top of the processing box and is connected to the gas outlet mechanism;

[0014] A metering prompt unit is provided on the top of the processing box;

[0015] The controller is arranged on the outer side wall of the processing box, and the concentration unit, the exhaust mechanism, the detection unit, the adsorption unit, the gas outlet mechanism, the tail gas purification unit and the metering prompt unit are all electrically connected to the controller.

[0016] Preferably, each of the concentration units includes an air inlet hole opened in the lower cavity wall, and an air intake solenoid valve is installed inside the air inlet hole, a piston plate is slidingly provided inside the cavity, an iron block is fixedly installed on the top of the piston plate, an electromagnetic plate is fixedly plugged into the upper cavity wall of the cavity, a plurality of springs are fixedly provided between the top of the piston plate and the cavity, the air intake solenoid valve and the electromagnetic plate are electrically connected to the controller, a plurality of cone heads are fixedly installed at the lower end of the piston plate, and the surfaces of each of the cone heads, the cavity, the air intake solenoid valve and the piston plate are sprayed with a nano-silicon dioxide coating.

[0017] Preferably, each of the exhaust mechanisms includes a plurality of circular tubes fixedly inserted into the end face of the piston plate, and the top of each circular tube slides through the upper cavity wall of the cavity, the lower end of each circular tube penetrates the piston plate, and the outer tube walls of each circular tube are commonly fixedly sleeved with a connecting plate, and an exhaust solenoid valve is installed inside each circular tube, and each exhaust solenoid valve is connected in series and electrically connected to the controller.

[0018] Preferably, the detection unit includes a detection tube fixedly inserted into the end surface of the top plate, a mounting bracket is provided above the detection tube, and the mounting bracket is fixedly connected to the top of the top plate, a photoion detector is installed on the end surface of the mounting bracket, and the detection end of the photoion detector is located inside the detection tube, and the photoion detector is electrically connected to the controller.

[0019] Preferably, the adsorption unit includes a frame plate fixedly installed between the upper end of the top plate and the top of the processing box, four adsorption grooves are opened inside the frame plate, and the four adsorption grooves are evenly distributed around the detection tube, the interior of each of the adsorption grooves is filled with activated carbon filler, the groove wall of each of the adsorption grooves is fixedly plugged with an adsorption inlet pipe and an adsorption outlet pipe, and the interior of each of the adsorption inlet pipe and the adsorption outlet pipe is installed with an adsorption solenoid valve, and each of the adsorption solenoid valves is electrically connected to the controller.

[0020] Preferably, the gas outlet mechanism includes a sealing cover fixedly mounted on the inner top of the processing box, and the sealing cover is arranged on the inner side of the frame plate, each of the adsorption outlet pipes is connected to the sealing cover, and the top of the processing box is provided with an exhaust hole connected to the sealing cover.

[0021] Preferably, the exhaust gas purification unit includes an exhaust gas cover fixedly mounted on the top of the processing box, and an ultraviolet photolysis lamp is fixedly mounted on the upper inner side of the exhaust gas cover, and an exhaust pipe is fixedly connected to the side wall of the exhaust gas cover.

[0022] Preferably, the metering prompt unit includes a rotating disk rotatably arranged on the top of the processing box, and a photoelectric switch is fixedly installed at the eccentric upper end of the rotating disk, the ultraviolet photolysis lamp irradiates the photosensitive end of the photoelectric switch through the exhaust hole, a motor is fixedly installed on the top of the processing box, and the output end of the motor is transmission-connected to the shaft of the rotating disk, the controller controls the output power of the motor according to the electrical signal output by the photoionization detector, a pulse counter is fixedly installed on the inner wall of the exhaust cover, the photoelectric switch is electrically connected to the pulse counter, the pulse counter is electrically connected to the controller, four alarms are fixedly installed on the outer wall of the processing box, and each alarm is electrically connected to the controller.

[0023] Compared with existing technologies, the advantages of a paint exhaust gas treatment integrated machine are:

[0024] 1. Through the coordination of the treatment box, exhaust gas inlet pipe, magnetic isolation plate, cavity, concentration unit and exhaust mechanism, the air is separated by multiple concentration units and compressed separately, so that the paint mist particles can be concentrated as much as possible to form large paint particles, which can be separated under the action of their own weight. There is no need to use absorption liquid, which reduces material consumption and has a good separation effect on paint mist.

[0025] 2. Through the cooperation of the top plate, adsorption unit and air outlet mechanism, VOCs can be adsorbed and purified, and the tail gas purification unit can be used to improve the purification effect of VOCs and the thoroughness of the purification of paint exhaust gas.

[0026] 3. Through the detection unit and metering reminder unit, the exhaust gas purification unit can be coordinated with the detection unit, and based on the detection results of VOCs by the detection unit, the consumables consumption of the adsorption unit can be automatically measured, and new adsorption consumables can be automatically switched, thereby ensuring the continuous adsorption and purification effect of VOCs, and reminding personnel to replace the adsorption consumables in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of an all-in-one paint exhaust gas treatment machine provided by the present invention;

[0028] Figure 2 This is a schematic diagram of the internal lower side structure of a treatment box of a paint spraying exhaust gas treatment integrated machine provided by the present invention;

[0029] Figure 3 This invention provides a spray paint exhaust gas treatment integrated machine Figure 2 A magnified view of the structure of part A;

[0030] Figure 4 This is a schematic diagram of the internal upper structure of a treatment box of a paint spraying exhaust gas treatment integrated machine provided by the present invention;

[0031] Figure 5 This invention provides a spray paint exhaust gas treatment integrated machine Figure 4 A magnified view of the structure of part B.

[0032] In the figure: 1 treatment box, 2 exhaust gas inlet pipe, 3 magnetic isolation plate, 4 cavity, 5 concentration unit, 51 air inlet hole, 52 air inlet solenoid valve, 53 piston plate, 54 iron block, 55 electromagnetic plate, 56 spring, 57 cone head, 6 exhaust mechanism, 61 round pipe, 62 connecting plate, 63 exhaust solenoid valve, 7 top plate, 8 detection unit, 81 detection tube, 82 mounting frame, 83 photoionization detector, 9 adsorption unit, 91 frame plate, 92 adsorption tank, 93 activated carbon filler, 94 adsorption inlet pipe, 95 adsorption outlet pipe, 96 adsorption solenoid valve, 10 exhaust mechanism, 101 sealing cover, 102 exhaust hole, 11 exhaust purification unit, 111 exhaust cover, 112 ultraviolet photolysis lamp, 113 exhaust pipe, 12 metering prompt unit, 121 rotating disk, 122 photoelectric switch, 123 motor, 124 pulse counter, 125 alarm, 13 controller. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0034] like Figure 1-Figure 5As shown, a paint spraying waste gas treatment integrated machine includes a treatment box 1 and an exhaust gas inlet pipe 2 fixedly plugged into the lower end of the side wall of the treatment box 1, and also includes: a magnetic isolation plate 3, the magnetic isolation plate 3 is fixedly arranged inside the treatment box 1, and the magnetic isolation plate 3 is arranged above the exhaust gas inlet pipe 2 outlet end, the end face of the magnetic isolation plate 3 is provided with a plurality of cavities 4, a plurality of concentration units 5 are arranged inside the corresponding cavities 4, and the air inlet end of each concentration exhaust unit is connected to the exhaust gas inlet pipe 2 through the treatment box 1, each concentration unit 5 includes an air inlet hole 51 opened in the lower cavity wall of the cavity 4, and an air inlet solenoid valve 52 is installed inside the air inlet hole 51, a piston plate 53 is slidingly provided inside the cavity 4, an iron block 54 is fixedly installed on the top of the piston plate 53, and the upper cavity wall of the cavity 4 is fixedly plugged in There is an electromagnetic plate 55, and multiple springs 56 are fixed between the top of the piston plate 53 and the cavity 4. The air intake solenoid valve 52 and the electromagnetic plate 55 are electrically connected to the controller 13. Multiple cone heads 57 are fixedly installed at the lower end of the piston plate 53. The surfaces of each cone head 57, the cavity 4, the air intake solenoid valve 52 and the piston plate 53 are sprayed with a nano-silicon dioxide coating. The nano-silicon dioxide coating can prevent the paint from adhering to the surface of the cone head 57 and ensure that the polymerized paint droplets can drip smoothly. A drainage pipe is connected to the lower end of the side wall of the processing box 1, and a control valve is provided inside the pipe to facilitate personnel to regularly transfer out the dripping paint. In order to facilitate the transfer of dripping paint, an appropriate amount of water can also be poured into the inner bottom of the processing box 1 to improve the fluidity of the paint.

[0035] Each concentration unit 5 is provided with an exhaust mechanism 6, and each exhaust mechanism 6 includes a plurality of circular tubes 61 fixedly inserted into the end face of the piston plate 53, and the top of each circular tube 61 slides through the upper cavity wall of the cavity 4, and the lower end of each circular tube 61 penetrates the piston plate 53. The outer tube wall of each circular tube 61 is fixedly sleeved with a connecting plate 62, and an exhaust solenoid valve 63 is installed inside each circular tube 61, and each exhaust solenoid valve 63 is connected in series and electrically connected to the controller 13. The exhaust solenoid valve 63 opens when power is turned on and closes when power is turned off.

[0036] The top plate 7 is fixedly arranged on the upper side of the interior of the treatment box 1, and the top plate 7 is arranged above the magnetic isolation plate 3. The detection unit 8 is installed on the end face of the top plate 7 and is connected to each exhaust mechanism 6 through the treatment box 1. The detection unit 8 includes a detection tube 81 fixedly inserted into the end face of the top plate 7. A mounting bracket 82 is provided above the detection tube 81, and the mounting bracket 82 is fixedly connected to the top of the top plate 7. A photoion detector 83 is installed on the end face of the mounting bracket 82, and the detection end of the photoion detector 83 is located inside the detection tube 81. The photoion detector 83 is electrically connected to the controller 13. The photoion detector 83 can emit specific ultraviolet rays and ionize the VOCs molecules in the exhaust gas. The exhaust molecules that lose electrons become positively charged ions and generate negatively charged electrons at the same time. The positive ions and electrons generated by ionization move toward the two electrodes of the photoion detector 83 under the action of the electric field in the detection cavity of the photoion detector 83, respectively, to form an ion current. This is an existing mature technology, so it will not be elaborated here.

[0037] The adsorption unit 9 is arranged at the top outer edge of the top plate 7 and is connected to the detection unit 8. The adsorption unit 9 includes a frame plate 91 fixedly installed between the upper end of the top plate 7 and the inner top of the treatment box 1. Four adsorption grooves 92 are opened inside the frame plate 91, and the four adsorption grooves 92 are evenly distributed around the detection tube 81. The interior of each adsorption groove 92 is filled with activated carbon filler 93. The groove wall of each adsorption groove 92 is fixedly plugged with an adsorption inlet pipe 94 and an adsorption outlet pipe 95. The interior of each adsorption inlet pipe 94 and the adsorption outlet pipe 95 is installed with an adsorption solenoid valve 96. Each adsorption solenoid valve 96 is electrically connected to the controller 13. The porous structure of the activated carbon filler 93 can adsorb VOCs in the exhaust gas. The groove wall of each adsorption groove 92 is provided with a feeding port and a discharge port, and corresponding seals are installed at the discharge port and the feeding port for replacing the activated carbon filler 93 inside the adsorption groove 92.

[0038] The gas outlet mechanism 10 is arranged inside the processing box 1 and is connected with the gas outlet end of each adsorption unit 9. The gas outlet mechanism 10 includes a sealing cover 101 fixedly installed on the top of the processing box 1, and the sealing cover 101 is arranged on the inner side of the frame plate 91. Each adsorption outlet pipe 95 is connected with the sealing cover 101. The top of the processing box 1 is provided with an exhaust hole 102 connected with the sealing cover 101. The exhaust gas inside the adsorption tank 92 can be transferred out through the sealing cover 101.

[0039] The exhaust gas purification unit 11 is arranged on the top of the treatment box 1 and is connected to the air outlet mechanism 10. The exhaust gas purification unit 11 includes an exhaust hood 111 fixedly installed on the top of the treatment box 1, and an ultraviolet photolysis lamp 112 is fixedly installed on the upper side of the interior of the exhaust hood 111. The side wall of the exhaust hood 111 is fixedly connected with an exhaust pipe 113. The ultraviolet photolysis lamp 112 can emit specific ultraviolet light, so as to decompose and purify VOCs that may remain in the exhaust gas, thereby improving the purification effect.

[0040] The metering prompt unit 12 is arranged on the top of the processing box 1, and the controller 13 is arranged on the outer wall of the processing box 1. The concentration unit 5, the exhaust mechanism 6, the detection unit 8, the adsorption unit 9, the exhaust mechanism 10, the exhaust purification unit 11 and the metering prompt unit 12 are all electrically connected to the controller 13. The metering prompt unit 12 includes a rotating disk 121 that is rotatably arranged on the top of the processing box 1, and a photoelectric switch 122 is fixedly installed at the eccentric position of the upper end of the rotating disk 121. The ultraviolet photolysis lamp 112 irradiates the photosensitive end of the photoelectric switch 122 through the exhaust hole 102. A motor 123 is fixedly installed on the top of the processing box 1, and the output end of the motor 123 is connected to the rotating disk 1 21 is connected to the shaft transmission, the controller 13 controls the output power of the motor 123 according to the electrical signal output by the photoionization detector 83, a pulse counter 124 is fixedly installed on the inner wall of the exhaust cover 111, the photoelectric switch 122 is electrically connected to the pulse counter 124, the pulse counter 124 is electrically connected to the controller 13, four alarms 125 are fixedly installed on the outer wall of the processing box 1, and each alarm 125 is electrically connected to the controller 13, the pulse counter 124 will count once immediately after receiving an electrical signal, and will output an electrical signal to the controller 13 after reaching the set value. This is an existing mature technology, so it will not be described here.

[0041] The operating principle of the present invention is now described as follows: the exhaust gas inlet pipe 2 is connected to the air supply end of the paint exhaust gas collection system (the paint exhaust gas collection system is used to collect the paint exhaust gas and transport it to the inside of the exhaust gas inlet pipe 2 through the air supply end). When the paint exhaust gas is separated and purified, the controller 13 is started;

[0042] After the controller 13 is started, it will control each intake solenoid valve 52 to work in sequence (the order of working is from left to right). A single intake solenoid valve 52 is timed to work for 5 seconds. When the intake solenoid valve 52 is working in sequence, the electromagnetic plate 55 on this side will also be energized to work. After the electromagnetic plate 55 is energized, it will generate a magnetic attraction, which can drive the piston plate 53 to move upward by adsorbing the iron block 54. When the piston plate 53 moves upward, the air capacity space below the piston plate 53 in the cavity 4 on this side will increase. Under the action of negative pressure, the exhaust gas entering through the exhaust gas inlet pipe 2 will immediately fill the cavity 4. After the intake solenoid valve 52 is powered off, the electromagnetic plate 55 will also be powered off synchronously. At this time, the magnetic attraction disappears. Under the action of the spring 56 on this side, the piston plate 53 will start to move back. Since the intake solenoid valve 52 is powered off and closed, the air The paint exhaust gas inside the cavity 4 cannot be discharged. Under the pressure of the piston plate 53 moving back, the exhaust gas inside the cavity 4 is compressed. The paint mist particles in the exhaust gas will collide with each other due to the reduction in space, thereby attracting each other to form large droplets. The weight of the aggregated droplets increases, and under the action of their own weight, the droplets will fall. After the electromagnetic plate 55 on this side is powered off for 5 seconds, the controller 13 will control the exhaust solenoid valve 63 inside the circular tube 61 on this side to work for 5 seconds. At this time, the exhaust gas inside the cavity 4 will be discharged through the circular tube 61. When the timing of the last intake solenoid valve 52 in the sequence ends, the controller 13 controls the intake solenoid valve 52 to restart working in sequence (the number of concentration units 5 is at least greater than 4 to ensure that the exhaust gas inside each cavity 4 can be discharged before it works again to absorb the exhaust gas);

[0043] After the controller 13 is started, the controller 13 will control the adsorption solenoid valve 96 inside one of the adsorption inlet pipes 94 and the adsorption outlet pipe 95 to be energized and opened (for example, the adsorption solenoid valve 96 on the far left). After the exhaust gas passes through the detection tube 81, it will enter the adsorption tank 92 through the adsorption inlet pipe 94, and flow through the activated carbon filler 93 in the adsorption tank 92 before being discharged through the adsorption outlet pipe 95. After the VOCs in the exhaust gas pass through the activated carbon filler 93, the VOCs will be adsorbed by the porous pores of the activated carbon filler 93, thereby adsorbing and purifying the VOCs in the exhaust gas. The exhaust gas discharged through the adsorption outlet pipe 95 will enter the inside of the sealing cover 101 and enter the inside of the sealing cover 101 through the tail gas hole 102. After the controller 13 is started, the ultraviolet photolysis lamp 112 will be controlled to work. The ultraviolet photolysis lamp 112 will emit high-energy ultraviolet photons whose energy is within a specific range, such as the common 185nm and 254nm wavelengths of ultraviolet light. When these photons irradiate the VOCs in the paint exhaust gas When the activated carbon filler 93 is adsorbed, the chemical bonds of the VOC molecules can be destroyed, thereby photolysis and purification of the VOCs that are not adsorbed by the activated carbon filler 93 can be performed to ensure the exhaust gas purification effect. The purified exhaust gas is discharged through the tail gas pipe 113;

[0044] The exhaust gas discharged from the circular tube 61 will pass through the detection tube 81. After the controller 13 is started, it will control the photoionization detector 83 to work synchronously. The emitting end of the photoionization detector 83 will emit ultraviolet light. When the paint exhaust gas flows through the detection tube 81, part of the exhaust gas will flow through the detection cavity of the photoionization detector 83 (because the paint exhaust gas needs to pass through the detection tube 81, part of the paint exhaust gas will flow through the detection cavity of the photoionization detector 83). At this time, the ultraviolet light emitted by the photoionization detector 83 will irradiate the exhaust gas molecules. If the ionization potential of the exhaust gas molecules is lower than the energy provided by the ultraviolet light (for example, a commonly used 10.6eV ultraviolet lamp can ionize most of the exhaust gas molecules below 10.6eV chemical substances), the exhaust gas molecules will absorb the energy of ultraviolet light, so that the exhaust gas molecules are activated and ionized, and the exhaust gas molecules that lose electrons become positively charged ions, and at the same time generate negatively charged electrons. The positive ions and electrons generated by ionization move toward the two electrodes of the photoionization detector 83 under the action of the electric field in the detection cavity of the photoionization detector 83, forming an ion current, thereby generating an electrical signal, which is amplified by a microcurrent amplifier and passed through the controller 13 to the inside of the motor 123. Since the higher the concentration of VOCs in the exhaust gas, the greater the intensity of the electrical signal generated by the ultraviolet light ionization, the higher the electrical signal passing through the motor 123. The greater the current, the greater the output power of the motor 123 (the power supply end of the motor 123 is equipped with an overcurrent protector to prevent the motor 123 from being damaged). At this time, the faster the rotating disk 121 drives the photoelectric switch 122 to rotate, the frequency of the photoelectric switch 122 passing through the exhaust hole 102 will increase. Therefore, the frequency of the photoelectric switch 122 receiving the light from the ultraviolet photolysis lamp 112 will also increase synchronously. After the photoelectric switch 122 receives the light from the ultraviolet photolysis lamp 112 (the photosensitive end of the photoelectric switch 122 can be equipped with a filter, such as a translucent plate, to reduce the energy of the ultraviolet light to ensure the normal operation of the photoelectric switch 122), the photoelectric switch 122 will convert the light signal into The pulse counter 124 is an electrical signal and outputs it to the pulse counter 124. After the pulse counter 124 receives an electrical signal, it will immediately increase the count and after the count reaches the set value (the set value is set according to the adsorption capacity of the selected activated carbon material. After the count of the pulse counter 124 reaches the set value, it generally represents that the adsorption rate of the activated carbon filler 93 reaches 50%. At this time, if the activated carbon filler 93 is continued to be used, it will affect the adsorption treatment effect of the exhaust gas. The set value can be adjusted by the staff), a qualified electrical signal is output to the controller 13. At this time, the controller 13 will control the two energized adsorption solenoid valves 96 to be de-energized, and control them in a certain order (for example, clockwise). The two adsorption solenoid valves 96 at the next adsorption tank 92 are energized, and the exhaust gas passing through the detection tube 81 is drawn into the next adsorption tank 92, allowing new activated carbon filler 93 to be used for adsorption treatment. Simultaneously, the controller 13 controls the corresponding alarm 125 to operate. Upon receiving the alarm signal from the alarm 125, the staff will know that the activated carbon filler 93 in the adsorption tank 92 needs to be replaced. In this case, the activated carbon filler 93 in the adsorption tank 92 needs to be replaced promptly. Each time the pulse counter 124 outputs an electrical signal to the controller 13, the controller 13 controls the pulse counter 124 to reset and restart counting.

[0045] 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 principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A paint spraying waste gas treatment integrated machine, comprising a treatment box (1) and a waste gas inlet pipe (2) fixedly plugged into the lower end of the side wall of the treatment box (1), characterized in that: Also includes: A magnetic isolation plate (3) is fixedly arranged inside the processing box (1), and the magnetic isolation plate (3) is arranged above the outlet end of the exhaust gas inlet pipe (2), and a plurality of cavities (4) are formed on the end surface of the magnetic isolation plate (3); A plurality of concentration units (5) are arranged inside corresponding cavities (4), and an air inlet end of each concentration exhaust unit is connected to an exhaust gas inlet pipe (2) via a processing box (1), and each concentration unit (5) is provided with an exhaust mechanism (6); A top plate (7) is fixedly arranged on the upper side of the interior of the processing box (1), and the top plate (7) is arranged above the magnetic isolation plate (3); A detection unit (8) is mounted on the end surface of the top plate (7) and is connected to each exhaust mechanism (6) through the processing box (1); An adsorption unit (9) is arranged at the top outer edge of the top plate (7) and is connected to the detection unit (8); An air outlet mechanism (10) is arranged inside the processing box (1) and is connected to the air outlet end of each adsorption unit (9); An exhaust gas purification unit (11) is arranged on the top of the processing box (1) and is connected to the gas outlet mechanism (10); A metering prompt unit (12) is arranged on the top of the processing box (1); A controller (13) is arranged on the outer wall of the processing box (1); the concentration unit (5), the exhaust mechanism (6), the detection unit (8), the adsorption unit (9), the exhaust mechanism (10), the tail gas purification unit (11) and the metering prompt unit (12) are all electrically connected to the controller (13); the detection unit (8) comprises a detection tube (81) fixedly plugged into the end surface of the top plate (7); a mounting frame (82) is provided above the detection tube (81), and the mounting frame (82) is fixedly connected to the top of the top plate (7); a photoion detector (83) is installed on the end surface of the mounting frame (82), and the detection end of the photoion detector (83) is located inside the detection tube (81); the photoion detector (83) is electrically connected to the controller (13); The adsorption unit (9) comprises a frame plate (91) fixedly mounted between the upper end of the top plate (7) and the inner top of the processing box (1); four adsorption grooves (92) are provided inside the frame plate (91); and the four adsorption grooves (92) are evenly distributed around the detection tube (81); the inside of each of the adsorption grooves (92) is filled with activated carbon filler (93); the groove wall of each of the adsorption grooves (92) is fixedly plugged with an adsorption inlet pipe (94) and an adsorption outlet pipe (95); the inside of each of the adsorption inlet pipe (94) and the adsorption outlet pipe (95) is installed with an adsorption solenoid valve (96); and each of the adsorption solenoid valves (96) is electrically connected to the controller (13); The gas outlet mechanism (10) comprises a sealing cover (101) fixedly mounted on the inner top of the processing box (1), and the sealing cover (101) is arranged on the inner side of the frame plate (91), each of the adsorption outlet pipes (95) is connected to the sealing cover (101), and the top of the processing box (1) is provided with an exhaust hole (102) connected to the sealing cover (101); The exhaust gas purification unit (11) comprises an exhaust gas cover (111) fixedly mounted on the top of the processing box (1), an ultraviolet photolysis lamp (112) fixedly mounted on the upper inner side of the exhaust gas cover (111), and an exhaust gas pipe (113) fixedly plugged into the side wall of the exhaust gas cover (111); The metering prompt unit (12) comprises a rotating disk (121) rotatably arranged on the top of the processing box (1), and a photoelectric switch (122) is fixedly installed at an eccentric position on the upper end of the rotating disk (121), the ultraviolet light decomposition lamp (112) irradiates the photosensitive end of the photoelectric switch (122) through the tail gas hole (102), a motor (123) is fixedly installed on the top of the processing box (1), and the output end of the motor (123) is drivingly connected to the shaft of the rotating disk (121), and the controller (13 ) The output power of the motor (123) is controlled according to the electrical signal output by the photoionization detector (83); a pulse counter (124) is fixedly installed on the inner wall of the exhaust hood (111); the photoelectric switch (122) is electrically connected to the pulse counter (124); the pulse counter (124) is electrically connected to the controller (13); four alarms (125) are fixedly installed on the outer wall of the processing box (1), and each alarm (125) is electrically connected to the controller (13).

2. The paint spraying waste gas treatment integrated machine according to claim 1, characterized in that: Each of the concentration units (5) comprises an air inlet hole (51) formed in the lower wall of the cavity (4), and an air inlet solenoid valve (52) is installed inside the air inlet hole (51); a piston plate (53) is slidably installed inside the cavity (4); an iron block (54) is fixedly installed on the top of the piston plate (53); an electromagnetic plate (55) is fixedly plugged into the upper wall of the cavity (4); a plurality of springs (56) are fixedly installed between the top of the piston plate (53) and the cavity (4); the air inlet solenoid valve (52) and the electromagnetic plate (55) are both electrically connected to a controller (13); a plurality of cone heads (57) are fixedly installed at the lower end of the piston plate (53); and the surfaces of each of the cone heads (57), the cavity (4), the air inlet solenoid valve (52) and the piston plate (53) are sprayed with a nano-silicon dioxide coating.

3. The paint spraying waste gas treatment integrated machine according to claim 2, characterized in that: Each of the exhaust mechanisms (6) comprises a plurality of circular tubes (61) fixedly plugged into the end surface of the piston plate (53), and the top of each circular tube (61) slides through the upper cavity wall of the cavity (4), and the lower end of each circular tube (61) penetrates the piston plate (53), and the outer tube wall of each circular tube (61) is commonly fixedly sleeved with a connecting plate (62), and each of the circular tubes (61) is installed inside an exhaust solenoid valve (63), and each exhaust solenoid valve (63) is connected in series and electrically connected to the controller (13).

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