A laboratory exhaust treatment device

Abstract

The present application belongs to the technical field of waste gas treatment, and particularly relates to a laboratory waste gas treatment device, which comprises a spraying box, a spraying unit and a filler frame installed in the spraying box. The spraying unit is arranged on the upper side of the inside of the spraying box and used for spraying absorbent. The filler frame is arranged below the spraying unit and filled with fillers in the inside. An industrial computer is fixedly installed on the outer side wall of the spraying box. A waste gas discharge pipe is fixedly inserted into the position above the spraying unit on the side wall of the spraying box. The present application can improve the contact sufficiency of waste gas and absorbent, effectively improve the purification efficiency and reduce the burden of fillers, improve the gas-liquid mass transfer efficiency, prevent the filler from being blocked, and adaptively regulate the swing amplitude according to the waste gas concentration to reduce the impact loss. In addition, the present application can roughly estimate the degree of filler loss, so as to facilitate timely maintenance.

Description

Technical Field

[0001] This invention belongs to the field of waste gas treatment technology, and in particular relates to a laboratory waste gas treatment device. Background Technology

[0002] Laboratories generate toxic, harmful, odorous, or corrosive waste gases during reagent use and chemical reactions. Direct discharge of these gases can pollute the environment and endanger human health. Therefore, they must be purified to avoid pollution risks.

[0003] Laboratory exhaust gases are diverse in composition. Spraying absorbents into full contact with the exhaust gases allows for rapid absorption of soluble pollutants. This method, with its simple structure, is one of the main approaches to treating laboratory exhaust gases, as exemplified by the laboratory exhaust gas treatment system disclosed in patent publication number CN115364638B. In this system, the absorbent is sprayed in a mist-like manner from top to bottom through nozzles at the top of the tower, while the exhaust gas flows from bottom to top, creating a counter-current flow. The gas and liquid phases react primarily within the packing material. However, relying solely on this internal reaction within the packing material is insufficient to ensure adequate purification when the exhaust gas concentration is high. Furthermore, the exhaust gas flows almost parallel to the absorbent in a vertical counter-current flow, potentially leading to insufficient contact and reduced absorption efficiency. Therefore, we propose a laboratory exhaust gas treatment device to address these issues. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a laboratory waste gas treatment device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a laboratory waste gas treatment device, comprising a spray box and a spray unit and a packing frame installed inside the spray box. The spray unit is located on the upper side inside the spray box and is used to spray an absorbent. The packing frame is located below the spray unit and is filled with packing material. An industrial controller is fixedly installed on the outer wall of the spray box. A waste gas discharge pipe is fixedly inserted into the side wall of the spray box and is located above the spray unit. The device also includes:

[0006] A bottom partition is fixedly installed inside the lower side of the spray box. Above the bottom partition are multiple horizontally arranged columns, and the columns are provided with vertical strip-shaped air jet holes. The spray box is equipped with a drive unit, which is used to drive the columns to reciprocate about their own axis.

[0007] A vibration mechanism is installed inside the packing frame, and the drive unit is provided with a striking component, which is used to apply a striking force to the vibration mechanism.

[0008] An air supply unit is located below the bottom partition plate, and the air supply unit is used to deliver exhaust gas into the strip jet hole for ejection.

[0009] Preferably, the drive unit includes support columns fixedly installed at both ends of the column, and the support columns are rotatably connected to the side wall of the spray box. A mounting cover is fixedly installed on one side of the spray box. Multiple gears are provided inside the mounting cover, and the gears are coaxially fixedly connected to the support column on the same side. A push plate is slidably connected inside the mounting cover, and a rack that meshes with the gears is fixedly connected to the side wall of the push plate. An electromagnetic suction rod is fixedly installed inside the mounting cover, and the movable end of the electromagnetic suction rod is fixedly connected to the side wall of the push plate. The electromagnetic suction rod is electrically connected to the industrial controller.

[0010] Preferably, the vibration mechanism includes multiple strip frames fixedly inserted into the bottom of the packing frame, and fixing strips are fixedly installed inside the strip frames. Vertical strip metal plates are fixedly inserted into the fixing strips, and multiple elastic metal rods are fixed to the top of the strip metal plates.

[0011] Preferably, the striking assembly includes a swing arm fixedly installed on the top of the support column, and an impact ball is fixedly connected to the top of the swing arm. A U-shaped frame is fixed to the bottom of the strip metal plate, and the impact ball is located in the U-shaped groove formed by the U-shaped frame.

[0012] Preferably, the air supply unit includes a pump fixedly installed on the outer wall of the spray box. The air supply end of the pump is connected to the interior of the spray box and is located below the bottom partition. The suction end of the pump is fixedly connected to an exhaust gas inlet pipe. The bottom partition has multiple strip-shaped air supply holes, and multiple flexible sleeves connected to the strip-shaped air supply holes are fixedly installed on the top of the bottom partition. The strip-shaped air supply holes are connected to corresponding strip-shaped jet holes on the same side through the flexible sleeves on the same side. The pump is electrically connected to an industrial controller. An exhaust gas detection component is installed at the air supply end of the pump, and the industrial controller controls the electromagnetic suction rod to work according to the electrical signal fed back by the exhaust gas detection component.

[0013] Preferably, the exhaust gas detection assembly includes a detection box fixedly connected to the air supply end of the pump. An exhaust gas detection sensor is fixedly installed on the top of the detection box. The exhaust gas detection sensor converts the exhaust gas concentration into an electrical signal and feeds it back to the industrial controller. The industrial controller controls the electromagnetic suction rod to work according to the electrical signal fed back by the exhaust gas detection sensor.

[0014] Preferably, a diverter pipe is fixedly inserted into the side wall of the detection box, and a gas flow meter is installed at the outlet end of the diverter pipe. A first proportional solenoid valve is fixedly installed inside the diverter pipe. A diverter hole is opened on the side wall of the detection box, and a second proportional solenoid valve is fixedly installed inside the diverter hole. The industrial controller controls the operation of the first and second proportional solenoid valves according to the electrical signal fed back by the exhaust gas detection sensor. The gas flow meter is electrically connected to the industrial controller.

[0015] Preferably, the spray box is provided with multiple sets of connecting rods inside, and the multiple connecting rods in the same set are fixedly arranged between two swing rods on the same side.

[0016] Compared with existing technologies, the advantages of a laboratory waste gas treatment device are:

[0017] 1. Through the coordinated operation of the spray box, spray unit, packing frame, industrial controller, exhaust pipe, bottom baffle, column, strip jet nozzle, drive unit, and air supply unit, the lateral distribution range of the exhaust gas is increased by using an oscillating air intake method below the packing, thereby improving its flow stability. This can minimize the vertical parallel flow of exhaust gas and downstream absorbent, improve the contact sufficiency between exhaust gas and downstream absorbent, and pre-adsorb and purify the exhaust gas before it enters the packing, reducing the exhaust gas concentration. This effectively improves the purification sufficiency of the exhaust gas and reduces the burden on the packing.

[0018] 2. Through the set vibration mechanism and knocking component, a vibration force can be applied to the inside of the packing during the swing air intake. The vibration force can break the absorbent liquid film on the surface of the packing into tiny droplets, increasing the gas-liquid contact area and enhancing the mass transfer efficiency. On the other hand, it can break up the particulate matter deposits in the pores of the packing, preventing blockage. At the same time, it can also disrupt the gas-liquid two-phase flow field, preventing the waste gas from flowing along the shortest flow path of the packing, which is conducive to improving the absorption and purification effect of the waste gas.

[0019] 3. The exhaust gas detection component can automatically adjust the swing amplitude of the column based on the exhaust gas concentration. When the exhaust gas concentration is high, the swing amplitude of the column can be increased to enhance the disturbance to the packing layer and prevent particulate matter in the high-concentration exhaust gas from clogging the packing pores, so as to absorb pollutants more efficiently. When the exhaust gas concentration is low, the swing amplitude can be reduced to reduce impact wear.

[0020] 4. By coordinating the configured diversion pipe, gas flow meter, first proportional solenoid valve, diversion orifice, and second proportional solenoid valve, the wear level of the packing can be roughly estimated based on the electrical signal fed back by the exhaust gas detection component, thereby reminding personnel to maintain the packing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a laboratory waste gas treatment device provided by the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the spray box of a laboratory waste gas treatment device provided by the present invention;

[0023] Figure 3 This invention provides a laboratory waste gas treatment device. Figure 2 Enlarged view of the structure of section A;

[0024] Figure 4 This is a three-dimensional structural diagram of the column of a laboratory waste gas treatment device provided by the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the drive unit of a laboratory waste gas treatment device provided by the present invention;

[0026] Figure 6 This is a three-dimensional structural diagram of a strip frame of a laboratory waste gas treatment device provided by the present invention;

[0027] Figure 7 This invention provides a laboratory waste gas treatment device. Figure 2 Enlarged view of the structure of section B;

[0028] Figure 8 This invention provides a laboratory waste gas treatment device. Figure 6 A schematic diagram of the explosion structure.

[0029] In the diagram: 1. Spray box, 2. Spray unit, 3. Packing frame, 4. Industrial controller, 5. Exhaust gas discharge pipe, 6. Bottom partition, 7. Column, 8. Strip jet nozzle, 9. Drive unit, 91. Support column, 92. Mounting cover, 93. Gear, 94. Push plate, 95. Rack, 96. Electromagnetic suction rod, 10. Vibration mechanism, 101. Strip frame, 102. Fixing strip, 103. Strip metal plate, 104. Elastic metal rod, 11. Striking assembly, 111. Swing rod, 112. Impact ball, 113. U-shaped frame, 12. Air supply unit, 121. Pump, 122. Exhaust gas inlet pipe, 123. Strip air supply hole, 124. Flexible sleeve, 13. Exhaust gas detection assembly, 131. Detection box, 132. Exhaust gas detection sensor, 14. Diverter pipe, 15. Gas flow meter, 16. First proportional solenoid valve, 17. Diverter hole, 18. Second proportional solenoid valve, 19. Connecting rod. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] like Figures 1-8 As shown, a laboratory waste gas treatment device includes a spray box 1, a spray unit 2 and a packing frame 3 installed inside the spray box 1. The spray unit 2 is located on the upper side inside the spray box 1 and is used to spray absorbent. The packing frame 3 is located below the spray unit 2 and is filled with packing. An industrial controller 4 is fixedly installed on the outer wall of the spray box 1. A waste gas discharge pipe 5 is fixedly inserted into the side wall of the spray box 1 and is located above the spray unit 2. An absorbent liquid discharge pipe is also inserted into the bottom of the spray box 1. An inspection port is provided on the side wall of the spray box 1, and a sealing plate is provided at the inspection port for easy replacement of packing, etc. The device also includes a bottom partition 6, which is fixedly installed on the lower side inside the spray box 1. Multiple horizontally arranged columns 7 are provided above the bottom partition 6, and the columns 7 have vertical strip-shaped air jet holes 8. A drive unit 9 is installed in the spray box 1 and is used to drive... The moving column 7 reciprocates about its own axis. The drive unit 9 includes support columns 91 fixedly installed at both ends of the column 7, and the support columns 91 are rotatably connected to the side wall of the spray box 1. A mounting cover 92 is fixedly installed on one side of the spray box 1. Multiple gears 93 are provided inside the mounting cover 92, and the gears 93 are coaxially fixedly connected to the support columns 91 on the same side. A push plate 94 is slidably connected inside the mounting cover 92, and a rack 95 that meshes with the gears 93 is fixedly connected to the side wall of the push plate 94. An electromagnetic suction rod 96 is fixedly installed inside the mounting cover 92, and the movable end of the electromagnetic suction rod 96 is fixedly connected to the side wall of the push plate 94. The electromagnetic suction rod 96 is electrically connected to the industrial controller 4. When current is passed through the electromagnetic component inside the electromagnetic suction rod 96, it will generate a magnetic attraction force on the permanent magnet component, thereby attracting the moving rod to move. When the electromagnetic component is de-energized, the moving rod returns to its original position under the action of its internal elastic component.

[0032] The vibration mechanism 10 is installed inside the packing frame 3, and the drive unit 9 is provided with a striking component 11. The striking component 11 is used to apply a striking force to the vibration mechanism 10. The vibration mechanism 10 includes a plurality of strip frames 101 fixedly inserted into the bottom of the packing frame 3, and a fixing strip 102 is fixedly installed inside the strip frame 101. A vertical strip metal plate 103 is fixedly inserted into the fixing strip 102, and a plurality of elastic metal rods 104 are fixed to the top of the strip metal plate 103.

[0033] The striking assembly 11 includes a swing rod 111 fixedly installed on the top of the support column 91, and an impact ball 112 is fixedly connected to the top of the swing rod 111. A U-shaped frame 113 is fixed to the bottom of the strip metal plate 103, and the impact ball 112 is located in the U-shaped groove formed by the U-shaped frame 113. By impacting the U-shaped frame 113 with the impact ball 112, the vibration force can be transmitted to each elastic metal rod 104 through the strip metal plate 103. The components such as the U-shaped frame 113, elastic metal rod 104, strip metal plate 103, column 7, and swing rod 111 are all treated with anti-corrosion measures to avoid corrosion by harmful substances in the exhaust gas.

[0034] An air supply unit 12 is located below the bottom partition 6 and is used to deliver exhaust gas into the strip-shaped jet nozzles 8 for ejection. The air supply unit 12 includes a pump 121 fixedly installed on the outer wall of the spray box 1. The air supply end of the pump 121 is connected to the interior of the spray box 1, and the air supply end of the pump 121 is located below the bottom partition 6. The suction end of the pump 121 is fixedly connected to an exhaust gas inlet pipe 122. The bottom partition 6 has multiple strip-shaped air supply holes 123, and multiple air supply holes 123 are fixedly installed on the top of the bottom partition 6. The flexible sleeve 124 and the strip-shaped air supply hole 123 are respectively connected to the corresponding strip-shaped jet hole 8 on the same side through the flexible sleeve 124 on the same side. The pump 121 is electrically connected to the industrial controller 4. The air supply end of the pump 121 is equipped with an exhaust gas detection component 13, and the industrial controller 4 controls the electromagnetic suction rod 96 to work according to the electrical signal fed back by the exhaust gas detection component 13. The exhaust gas detection component 13 includes a detection box 131 fixedly connected to the air supply end of the pump 121. An exhaust gas detection sensor 132 is fixedly installed on the top of the detection box 131. The exhaust gas concentration is converted into an electrical signal and fed back to the industrial controller 4. The industrial controller 4 controls the electromagnetic suction rod 96 to work based on the electrical signal fed back by the exhaust gas detection sensor 132. The higher the exhaust gas concentration detected by the exhaust gas detection sensor 132, the stronger the electrical signal fed back to the industrial controller 4. The exhaust gas detection sensor 132 can be selected according to actual needs, such as an infrared gas sensor (based on the selective absorption characteristics of the near-infrared spectrum of different gas molecules, it uses the relationship between gas concentration and absorption intensity to identify gas components and determine their concentration. When the infrared wavelength matches the absorption spectrum of the gas being measured, infrared energy is absorbed. The higher the gas concentration, the greater the attenuation of light. The gas concentration is measured by measuring the attenuation of infrared light by the gas. The light signal is converted into an electrical signal by the infrared detector. The higher the exhaust gas concentration, the stronger the electrical signal), an electrochemical sensor (based on the electrical signal generated by the chemical reaction to detect gas components and concentration. The target gas undergoes an electrochemical reaction at the working electrode to generate migrated electrons, forming a current signal proportional to the gas concentration. The gas concentration can be determined by measuring the current), etc.

[0035] A diversion pipe 14 is fixedly inserted into the side wall of the detection box 131, and a gas flow meter 15 is installed at the outlet end of the diversion pipe 14. A first proportional solenoid valve 16 is fixedly installed inside the diversion pipe 14. A diversion hole 17 is opened on the side wall of the detection box 131, and a second proportional solenoid valve 18 is fixedly installed inside the diversion hole 17. The industrial controller 4 controls the operation of the first proportional solenoid valve 16 and the second proportional solenoid valve 18 according to the electrical signal fed back by the exhaust gas detection sensor 132. The gas flow meter 15 is electrically connected to the industrial controller 4. When the current intensity entering the first proportional solenoid valve 16 and the second proportional solenoid valve 18 is greater, the valve plate of the first proportional solenoid valve 16 is opened to a greater extent, and the second proportional solenoid valve 18 is opened to a smaller extent.

[0036] The spray box 1 is equipped with multiple sets of connecting rods 19 inside, and the multiple connecting rods 19 in the same set are fixedly installed between two swing rods 111 on the same side. The connecting rods 19 can improve the connection strength between the swing rods 111, and when the connecting rods 19 swing with the swing rods 111, the connecting rods 19 can break the downstream absorbent droplets, which can promote the full contact between the absorbent and the exhaust gas to a certain extent.

[0037] The operating principle of this invention is described as follows: The laboratory exhaust gas output pipe is connected to the exhaust gas inlet pipe 122. The laboratory exhaust gas is transported to the exhaust gas inlet pipe 122 through the exhaust gas output pipe by equipment such as a fan. The pump 121 operates to transport the exhaust gas into the spray box 1 (the secondary transport by the pump 121 ensures the stability of the airflow). Subsequently, the exhaust gas is ejected from the strip-shaped air supply holes 8 of each column 7 through the strip-shaped air supply holes 123 and the flexible sleeve 124. Meanwhile, the industrial controller 4 controls the electromagnetic suction rod 96 to be energized for 1 second every 1 second. When the electromagnetic suction rod 96 is energized, the electricity inside the electromagnetic suction rod 96... The magnetic component attracts its own movable rod to retract, which in turn drives the rack 95 to move via the push plate 94. The rack 95 then drives each gear 93 to rotate counterclockwise by a certain angle. When the electromagnetic suction rod 96 is de-energized, the movable rod of the electromagnetic suction rod 96, under the action of the elastic element inside the electromagnetic suction rod 96, will drive the rack 95 to move back to its original position via the push plate 94. At this time, the rack 95 drives each gear 93 to rotate. Through the repeated work of the electromagnetic suction rod 96, the reciprocating movement of the rack 95 can drive the gears 93 to drive the support column 91 and column 7 to swing back and forth, thereby swaying the exhaust gas. The absorbent is sprayed onto the packing frame 3. During waste gas treatment, the industrial controller 4 controls the spray unit 2 to work. The spray unit 2 uses a pump to spray the absorbent through each spray head. After passing through the packing inside the packing frame 3, the absorbent flows down from the bottom of the packing frame 3. At this time, because the waste gas is sprayed out under the action of oscillation, the horizontal distribution range of the waste gas in the spray box 1 can be increased, and the parallel contact between the waste gas and the downward-flowing absorbent can be avoided as much as possible. This can improve the full contact between the absorbent and the waste gas. In addition, because the absorbent and the waste gas are in pre-contact below the packing (the distance between the column 7 and the bottom of the packing frame 3 is at least 1 meter). Therefore, harmful substances and particulate matter in the exhaust gas can be removed in advance by the absorbent, reducing the concentration of exhaust gas. Secondly, when the exhaust gas enters the stuffing frame 3, it is fully dispersed by the gaps in the stuffing. The absorbent can fully contact the exhaust gas through the gaps inside the stuffing, thus further absorbing the harmful substances in the exhaust gas. The exhaust gas passing through the stuffing frame 3 will be discharged from the exhaust gas discharge pipe 5 (wherein, the absorbent can be selected according to the pollutants in the actual exhaust gas generated in the laboratory, and a demister can be installed at the exhaust gas discharge pipe 5 inside the spray box 1 to remove water vapor and other substances that may be mixed in the exhaust gas).

[0038] When the column 7 swings back and forth, it will impact the U-shaped frame 113 through the swing rod 111 and the impact ball 112. Under the impact force, the U-shaped frame 113 will transmit the vibration force through the strip metal plate 103 to each elastic metal rod 104. The elastic metal rod 104 will transmit the vibration force to the packing inside the packing frame 3. Under the action of the vibration force, the absorbent liquid film on the surface of the packing can be broken into tiny droplets, increasing the gas-liquid contact area and enhancing the mass transfer efficiency. On the other hand, it can break up the particulate matter deposits in the pores of the packing, preventing blockage. At the same time, it can also disrupt the gas-liquid two-phase flow field, and try to avoid the waste gas from flowing along the shortest flow path of the packing (the shortest flow path is the thickness of the packing), which is conducive to improving the absorption and purification effect of the waste gas.

[0039] When the exhaust gas enters the spray box 1 via the pump 121, it passes through the detection box 131. The exhaust gas detection sensor 132 detects the concentration of the exhaust gas and converts it into an electrical signal, which is then fed back to the industrial controller 4. (The exhaust gas detection sensor 132 can be selected based on the pollutants in the exhaust gas generated in the actual laboratory.) Each time the industrial controller 4 controls the operation of the electromagnetic suction rod 96, it controls the working current supplied to the electromagnetic suction rod 96 based on the strength of the electrical signal fed back by the exhaust gas detection sensor 132. The stronger the electrical signal fed back by the exhaust gas detection sensor 132, the greater the working current supplied to the electromagnetic suction rod 96 (the maximum current will not exceed the rated current of the electromagnetic suction rod 96). (3A), that is, when the exhaust gas concentration is high, the stronger the electrical signal strength fed back to the industrial controller 4 by the exhaust gas detection sensor 132, the greater the working current controlled by the industrial controller 4 into the electromagnetic suction rod 96. When the current into the electromagnetic suction rod 96 is greater, the force of the electromagnetic suction rod 96 pulling the push plate 94 once is greater, thereby driving the swing rod 111 to swing more force. At this time, the vibration force on the inside of the packing is stronger. Since the liquid film and deposit blockage are more likely to form inside the packing when the exhaust gas concentration is high, the greater vibration force can ensure the effect of breaking the liquid film and deposit inside the packing. When the exhaust gas concentration is low, reducing the swing force of the swing rod 111 can reduce unnecessary impact wear.

[0040] Secondly, the industrial controller 4 controls the operation of the first proportional solenoid valve 16 and the second proportional solenoid valve 18 based on the electrical signal fed back by the exhaust gas detection sensor 132. The higher the exhaust gas concentration, the stronger the electrical signal fed back to the industrial controller 4 by the exhaust gas detection sensor 132. At this time, the industrial controller 4 controls the opening degree of the valve plate of the first proportional solenoid valve 16 to be greater, while the opening degree of the valve plate of the second proportional solenoid valve 18 is smaller. Because when the exhaust gas concentration is high, a large number of pollutants in the high-concentration exhaust gas react violently with the absorbent, generating more heat and chemical byproducts. These byproducts may be corrosive, accelerating the aging and damage of the packing material. Simultaneously, particulate matter or sticky substances carried by the high-concentration exhaust gas are more likely to adhere during the gas-liquid reaction process. Deposits accumulate on the surface and within the pores of the packing material, exacerbating its blockage and affecting gas-liquid mass transfer efficiency. Therefore, the higher the concentration of exhaust gas, the greater the wear on the packing material, and vice versa. When the exhaust gas concentration is high, the opening degree of the first proportional solenoid valve 16 is greater, resulting in more airflow passing through the gas flow meter 15. The cumulative gas flow rate monitored by the gas flow meter 15 can roughly reflect the degree of wear on the packing material. Once the cumulative gas flow rate reaches a threshold (which is set based on the exhaust gas and packing material), the gas flow meter 15 will send an electrical signal to the industrial controller 4. At this time, the industrial controller 4 will issue a reminder to the personnel, who will then need to maintain or replace the packing material in a timely manner.

[0041] 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 within the protection scope of the present invention.

Claims

1. A laboratory waste gas treatment device, comprising a spray box (1) and a spray unit (2) and a packing frame (3) installed inside the spray box (1), wherein the spray unit (2) is located on the upper side inside the spray box (1) for spraying an absorbent, the packing frame (3) is located below the spray unit (2) and the packing frame (3) is filled with packing material, an industrial controller (4) is fixedly installed on the outer wall of the spray box (1), and a waste gas discharge pipe (5) is fixedly inserted into the side wall of the spray box (1), and the waste gas discharge pipe (5) is located above the spray unit (2), characterized in that, Also includes: A bottom partition (6) is fixedly installed on the lower inside of the spray box (1). Above the bottom partition (6) are multiple horizontally arranged columns (7), and the columns (7) are provided with vertical strip-shaped air jet holes (8). The spray box (1) is equipped with a drive unit (9), and the drive unit (9) is used to drive the columns (7) to reciprocate about their own axis. A vibration mechanism (10) is installed inside the packing frame (3), and the drive unit (9) is provided with a striking component (11), which is used to apply a striking force to the vibration mechanism (10); An air supply unit (12) is disposed below the bottom partition plate (6), and the air supply unit (12) is used to deliver exhaust gas to the strip jet hole (8) for ejection; The drive unit (9) includes support columns (91) fixedly installed at both ends of the column (7), and the support columns (91) are rotatably connected to the side wall of the spray box (1). A mounting cover (92) is fixedly installed on one side of the spray box (1). Multiple gears (93) are provided inside the mounting cover (92), and the gears (93) are coaxially fixedly connected to the support column (91) on the same side. A push plate (94) is slidably connected inside the mounting cover (92), and a rack (95) meshing with the gears (93) is fixedly connected to the side wall of the push plate (94). An electromagnetic suction rod (96) is fixedly installed inside the mounting cover (92), and the movable end of the electromagnetic suction rod (96) is fixedly connected to the side wall of the push plate (94). The electromagnetic suction rod (96) is electrically connected to the industrial controller (4). The vibration mechanism (10) includes multiple strip frames (101) fixedly inserted into the bottom of the packing frame (3), and a fixing strip (102) is fixedly installed inside the strip frame (101). A vertical strip metal plate (103) is fixedly inserted into the fixing strip (102), and multiple elastic metal rods (104) are fixed on the top of the strip metal plate (103). The striking assembly (11) includes a swing rod (111) fixedly installed on the top of the support column (91), and an impact ball (112) is fixedly connected to the top of the swing rod (111). A U-shaped frame (113) is fixed to the bottom of the strip metal plate (103), and the impact ball (112) is located in the U-shaped groove formed by the U-shaped frame (113).

2. The laboratory waste gas treatment device according to claim 1, characterized in that, The air supply unit (12) includes a pump (121) fixedly installed on the outer wall of the spray box (1). The air supply end of the pump (121) is connected to the interior of the spray box (1), and the air supply end of the pump (121) is located below the bottom partition plate (6). The suction end of the pump (121) is fixedly connected to an exhaust gas inlet pipe (122). The bottom partition plate (6) has multiple strip-shaped air supply holes (123), and the top of the bottom partition plate (6) is fixedly installed with... Multiple flexible sleeves (124) are connected to the strip-shaped air supply holes (123). The strip-shaped air supply holes (123) are connected to the corresponding strip-shaped jet holes (8) on the same side through the flexible sleeves (124) on the same side. The pump (121) is electrically connected to the industrial controller (4). The air supply end of the pump (121) is equipped with an exhaust gas detection component (13), and the industrial controller (4) controls the electromagnetic suction rod (96) to work according to the electrical signal fed back by the exhaust gas detection component (13).

3. The laboratory waste gas treatment device according to claim 2, characterized in that, The exhaust gas detection assembly (13) includes a detection box (131) fixedly connected to the gas supply end of the pump (121). An exhaust gas detection sensor (132) is fixedly installed on the top of the detection box (131). The exhaust gas detection sensor (132) converts the exhaust gas concentration into an electrical signal and feeds it back to the industrial controller (4). The industrial controller (4) controls the electromagnetic suction rod (96) to work according to the electrical signal fed back by the exhaust gas detection sensor (132).

4. The laboratory waste gas treatment device according to claim 3, characterized in that, A diversion pipe (14) is fixedly inserted into the side wall of the detection box (131), and a gas flow meter (15) is installed at the outlet end of the diversion pipe (14). A first proportional solenoid valve (16) is fixedly installed inside the diversion pipe (14). A diversion hole (17) is opened on the side wall of the detection box (131), and a second proportional solenoid valve (18) is fixedly installed inside the diversion hole (17). The industrial controller (4) controls the first proportional solenoid valve (16) and the second proportional solenoid valve (18) to work according to the electrical signal fed back by the exhaust gas detection sensor (132). The gas flow meter (15) is electrically connected to the industrial controller (4).

5. The laboratory waste gas treatment device according to claim 1, characterized in that, The spray box (1) is equipped with multiple sets of connecting rods (19), and the multiple connecting rods (19) in the same set are fixedly arranged between two swing rods (111) on the same side.

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