Waste gas dry adsorption filter material in-situ regeneration equipment for laboratory and filter material preparation method

Abstract

The invention relates to the technical field of laboratory waste gas treatment and filter material regeneration, and discloses waste gas dry adsorption filter material in-situ regeneration equipment for a laboratory. Comprising a base, the upper surface of the base is fixedly connected with a primary filtering box, the upper surface of the base is fixedly connected with an inorganic adsorption box, and the upper surface of the base is fixedly connected with an organic adsorption box. According to the inorganic waste gas filter material, the organic waste gas filter material and the adsorption and photocatalysis combined process prepared by the invention, the removal effect and conversion rate of photocatalytic oxidation under different operation conditions or process parameters are researched, and the organic waste gas filter material can effectively adsorb organic pollutants in laboratory waste gas; after adsorption saturation, the filter material loaded with the nano TiO2 is subjected to catalytic oxidation through light excitation of the nano TiO2, organic pollutants adsorbed in the filter material structure are degraded and fall off from the surface of the honeycomb pore structure of the filter material, in-situ regeneration of the organic waste gas filter material is achieved, the replacement period of the organic waste gas filter material can be prolonged, and the waste gas treatment efficiency of a laboratory is improved.

Description

Technical Field

[0001] The invention relates to the technical field of filter material regeneration, in particular to an in-situ regeneration device for waste gas dry adsorption filter material for laboratory use and a filter material preparation method. Background Art

[0002] The research and development of laboratory waste gas purification technology is another important topic of air pollution prevention and control after the purification of general industrial waste gas. However, to date, the waste gas with complex components generated by laboratories of most chemical enterprises and university research institutes in my country is restricted by process research, management concepts, funds, hardware equipment and other conditions. The waste gas purification technology is still limited to the simple treatment process of activated carbon adsorption. There is still a lack of comprehensive and systematic solutions to the problem. It is difficult to meet the needs of environmental safety and pollution prevention and control as well as the physical and mental health of employees and scientific researchers. The traditional treatment method is generally direct discharge or a small number of single activated carbon adsorption and filtration devices. After the single activated carbon adsorption is saturated, it will form new solid waste, which is difficult to handle. Summary of the invention

[0003] 1. Technical issues to be resolved In view of the shortcomings of the prior art, the present invention provides an in-situ regeneration device for waste gas dry adsorption filter material for laboratory use and a filter material preparation method. Through the adsorption and photocatalytic combined process and related adsorption and photocatalytic materials, the main influencing factors such as the type of photocatalytic material, residence time, and removal load are experimentally analyzed to study the removal effect and conversion rate of photocatalytic oxidation under different operating conditions or process parameters. At the same time, through 185-254nm ultraviolet light irradiation, the organic waste gas filter material module can be effectively degraded, so that the filter catalytic material can be regenerated in situ after adsorption saturation, so that the material can be recycled. The use of the organic waste gas filter material can achieve efficient purification of low-concentration, multi-component VOCs while reducing the frequency of material replacement and saving costs. The organic waste gas filter material is made of water-resistant honeycomb activated carbon immersed in polyethylene glycol, polyvinyl alcohol, nano titanium dioxide and water, so that the ignition point of the organic waste gas filter material is greater than 500°C, the iodine adsorption value is greater than 1100mg / g, the specific surface area is greater than 1200m2 / g, the carbon tetrachloride adsorption rate is greater than 80%, the xylene adsorption weight ratio is greater than 50%, the formaldehyde adsorption weight ratio is greater than 22%, the benzene adsorption weight ratio is greater than 52%, and the acetone adsorption weight ratio is greater than 47%. Reduce the difficulty of waste gas treatment and improve the efficiency of treatment. At the same time, during the non-purification treatment time, the filter material loaded with nano-TiO2 is catalytically oxidized by light-excited nano-TiO2 to degrade the organic pollutants adsorbed in the filter material structure and fall off from the surface of the filter material honeycomb pore system structure, so as to achieve the in-situ regeneration of the carbon-based filter material, and the carbon-based replacement cycle can be extended by 4-5 times.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a base, the upper surface of the base is fixedly connected with a primary filter box, the upper surface of the base is fixedly connected with an inorganic adsorption box, and the inorganic adsorption box is located on the right side of the primary filter box, the upper surface of the base is fixedly connected with an organic adsorption box, and the organic adsorption box is located on the right side of the inorganic adsorption box, the inner top wall of the organic adsorption box is fixedly connected with a UV upper lamp holder, the inner bottom wall of the organic adsorption box is fixedly connected with a UV lower lamp holder, and the UV lower lamp holder is located below the UV upper lamp holder, and the rear surfaces of the UV upper lamp holder and the UV lower lamp holder are both fixedly connected with organic waste gas filter material carbon cages; A cover plate is provided on the upper surface of the inorganic adsorption box, a connecting block is fixedly connected to the lower surface of the cover plate, a mounting plate is fixedly connected to the lower surface of the connecting block, a fitting block is fixedly connected to the lower surface of the mounting plate, an inorganic adsorption filter plate is fixedly connected to the lower surface of the mounting plate, a fitting seat is fixedly connected to the inner wall of the inorganic adsorption box, and the fitting seat is fitted and connected to the fitting block.

[0005] Preferably, a filter screen is fixedly connected to the interior of the primary filter box, and an air intake pipe is fixedly connected to the side surface of the primary filter box.

[0006] Preferably, a movable plate is sleeved on the side surface of the filter, a cleaning brush is provided on the side surface of the movable plate, and the cleaning brush is in contact with both sides of the filter, and a connecting plate is fixedly connected to the front surface of the movable plate, and a first magnetic block is provided on the front surface of the connecting plate.

[0007] Preferably, a second magnetic block is disposed on the front surface of the primary filter box, and the second magnetic block is attracted to the first magnetic block. A metal plate is disposed on the front surface of the second magnetic block, and a cross bar is fixedly connected to the front surface of the metal plate.

[0008] Preferably, a baffle is slidably connected to the front surface of the primary filter box, and a collecting groove is provided inside the base, and the collecting groove is communicated with the primary filter box.

[0009] Preferably, a threaded rod is threadedly connected to the inner surface of the cover plate, and the threaded rod is threadedly connected to the primary filter box, and a handle is fixedly connected to the upper surface of the cover plate.

[0010] Preferably, the rear surfaces of the UV upper lamp rack and the UV lower lamp rack are fixedly connected with lamp frames, and ultraviolet microwave irradiation lamps are arranged inside the lamp frames.

[0011] Preferably, a side surface of the organic adsorption box is fixedly connected with an air duct, and an upper surface of the air duct is fixedly connected with a smoke detector.

[0012] Preferably, an engine box is fixedly connected to the upper surface of the base, and the engine box is in communication with an air duct, and a fan is fixedly connected to the interior of the engine box.

[0013] A method for preparing a laboratory waste gas dry adsorption filter material comprises the following steps: S1. Immerse the water-resistant honeycomb activated carbon in a mixed solution of polyethylene glycol, polyvinyl alcohol, nano-titanium dioxide and water for about 30 seconds, then take it out, drain off the excess solution, place it on a tray and dry it in a natural ventilation environment or dry it at low temperature to obtain a special carbon-based filter material for purifying organic pollutants.

[0014] S2. Mix SDG raw material powder, attapulgite, silica sol, glass fiber (short fiber / powder), sodium carboxymethyl cellulose (CMC) and other materials, design a special honeycomb molding die for extrusion molding, dry naturally at room temperature for 48 hours, dry at 90-100 ° C for 4-6 hours until constant weight, and calcine at 500 ° C for 4 hours at a heating rate of 5 ° C / min under nitrogen protection. After natural cooling, a special filter material for purifying inorganic pollutants (mainly acidic substances) is obtained.

[0015] Compared with the prior art, the present invention provides an in-situ regeneration device for dry adsorption filter material for laboratory waste gas and a filter material preparation method, which has the following beneficial effects: 1. The present invention uses an adsorption and photocatalytic combined process and related adsorption and photocatalytic materials to test and analyze major influencing factors such as photocatalytic material type, residence time, and removal load, and studies the removal effect and conversion rate of photocatalytic oxidation under different operating conditions or process parameters. At the same time, through 185-254nm ultraviolet light irradiation, the organic waste gas filter material module can be effectively degraded, so that the filter catalytic material can be regenerated in situ after adsorption saturation, so that the material can be recycled, achieving efficient purification of low-concentration, multi-component VOCs while reducing the frequency of material replacement and saving costs.

[0016] 2. The organic waste gas filter material of the present invention is prepared by immersing polyethylene glycol, polyvinyl alcohol, nano titanium dioxide and water in water-resistant honeycomb activated carbon, so that the ignition point of the organic waste gas filter material is greater than 500°C, the iodine adsorption value is greater than 1100mg / g, the specific surface area is greater than 1200m2 / g, the carbon tetrachloride adsorption rate is greater than 80%, the xylene adsorption weight ratio is greater than 50%, the formaldehyde adsorption weight ratio is greater than 22%, the benzene adsorption weight ratio is greater than 52%, and the acetone adsorption weight ratio is greater than 47%. Reduce the difficulty of waste gas treatment and improve the efficiency of treatment. At the same time, during the non-purification treatment time, the filter material loaded with nano-TiO2 is catalytically oxidized by light-excited nano-TiO2 to degrade the organic pollutants adsorbed in the filter material structure and fall off from the surface of the filter material honeycomb pore system structure, so as to achieve in-situ regeneration of carbon-based filter material, and the carbon-based replacement cycle can be extended by 4-5 times. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram of the rear view structure of the metal plate of the present invention; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 for Figure 3 Schematic diagram of the structure at A in the middle; Figure 5 This is a schematic diagram of the structure of the movable plate of the present invention; Figure 6 This is a schematic diagram of the structure of the UV upper lamp frame and the UV lower lamp frame of the present invention; Figure 7 It is a schematic diagram of the lamp frame structure of the present invention.

[0018] Wherein: 1. base; 2. inorganic adsorption box; 3. collecting tank; 4. lamp frame; 5. air inlet pipe; 6. primary filter box; 7. filter screen; 8. handle; 9. UV upper lamp holder; 10. organic adsorption box; 11. smoke detector; 12. machine box; 13. fan; 14. air duct; 15. inorganic adsorption filter plate; 16. fitting seat; 17. fitting block; 18. threaded rod; 19. cover plate; 20. connecting block; 21. mounting plate; 22. connecting plate; 23. moving plate; 24. cleaning brush; 25. first magnetic block; 26. metal plate; 27. cross bar; 28. baffle; 29. ​​second magnetic block; 30. UV lower lamp holder; 31. organic waste gas filter carbon cage; 32. ultraviolet microwave irradiation lamp. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0020] See also Figure 1-7, a laboratory waste gas dry adsorption filter material in-situ regeneration equipment, comprising a base 1, the upper surface of the base 1 is fixedly connected with a primary filter box 6, the interior of the primary filter box 6 is fixedly connected with a filter screen 7, the side surface of the primary filter box 6 is fixedly connected with an intake pipe 5, the side surface of the filter screen 7 is sleeved with a movable plate 23, the side surface of the movable plate 23 is provided with a cleaning brush 24, and the cleaning brush 24 is in contact with both sides of the filter screen 7, the front surface of the movable plate 23 is fixedly connected with a connecting plate 22, the front surface of the connecting plate 22 is provided with a first magnetic block 25, the front surface of the primary filter box 6 is provided with a second magnetic block 29, and the second magnetic block 29 is attracted to the first magnetic block 25, the front surface of the second magnetic block 29 is provided with a metal plate 26, the front surface of the metal plate 26 is fixedly connected with a cross bar 27, the front surface of the primary filter box 6 is slidably connected with a baffle 28, the interior of the base 1 is provided with a collecting tank 3, and the collecting tank 3 is communicated with the primary filter box 6, so that the exhaust gas can be discharged into the interior of the primary filter box 6 through the intake pipe 5. , the filter screen 7 can be used to intercept large particles of impurities in the exhaust gas and perform primary filtering of the exhaust gas. When the large particles of impurities in the exhaust gas are filtered, since the primary filter box 6 is made of metal, the staff can hold the cross bar 27 and adsorb the second magnetic block 29 on the surface of the primary filter box 6, and use the primary filter box 6 as a medium to attract the first magnetic block 25. After the first magnetic block 25 and the second magnetic block 29 are attracted, the staff can push the cross bar 27 up and down, so that the connecting plate 22 is affected by the attraction between the first magnetic block 25 and the second magnetic block 29. When the cross bar 27 moves up and down, the connecting plate 22 can drive the movable plate 23 to move up and down. Through the up and down movement of the movable plate 23, the cleaning brush 24 can clean the impurities adsorbed on the surface of the filter screen 7. After the impurities are cleaned, the baffle 28 can be pulled forward so that the baffle 28 can extend from the inside of the primary filter box 6, and the impurities cleaned from the surface of the filter screen 7 can fall into the inside of the collecting tank 3 for collection, which is convenient for the staff to clean the fallen impurities.

[0021] The upper surface of the base 1 is fixedly connected with an inorganic adsorption box 2, and the inorganic adsorption box 2 is located on the right side of the primary filter box 6. The upper surface of the inorganic adsorption box 2 is provided with a cover plate 19, and the lower surface of the cover plate 19 is fixedly connected with a connecting block 20, and the lower surface of the connecting block 20 is fixedly connected with a mounting plate 21, and the lower surface of the mounting plate 21 is fixedly connected with a chimeric block 17, and the lower surface of the mounting plate 21 is fixedly connected with an inorganic adsorption filter plate 15, and the inner wall of the inorganic adsorption box 2 is fixedly connected with a chimeric seat 16, and the chimeric seat 16 is chimerically connected with the chimeric block 17, the inner thread of the cover plate 19 is connected with a threaded rod 18, and the threaded rod 18 is threadedly connected with the primary filter box 6, and the upper surface of the cover plate 19 is fixedly connected with a handle 8. The adsorption boxes 10 are all connected by pipes, so that the exhaust gas in the primary filter box 6 can enter the interior of the inorganic adsorption box 2, so that the inorganic pollutants in the exhaust gas react chemically with the inorganic adsorption filter plate 15 to generate new neutral salt substances stored in the inorganic adsorption filter plate. When the exhaust gas is treated, the threaded rod 18 is twisted to separate the cover plate 19 from the top of the inorganic adsorption box 2, and the handle 8 is held so that the cover plate 19 can be lifted upward. When the cover plate 19 is lifted upward, the mounting plate 21 can drive the inorganic adsorption filter plate 15 and the interlocking block 17 to move upward together, so that the interlocking block 17 can be separated from the inside of the interlocking seat 16, and the inorganic adsorption filter plate 15 can be extended from the inside of the inorganic adsorption box 2, making it convenient to replace and use the inorganic adsorption filter plate 15.

[0022] The upper surface of the base 1 is fixedly connected with an organic adsorption box 10, and the organic adsorption box 10 is located on the right side of the inorganic adsorption box 2. The inner top wall of the organic adsorption box 10 is fixedly connected with a UV upper lamp holder 9. The inner bottom wall of the organic adsorption box 10 is fixedly connected with a UV lower lamp holder 30, and the UV lower lamp holder 30 is located below the UV upper lamp holder 9. The rear surfaces of the UV upper lamp holder 9 and the UV lower lamp holder 30 are fixedly connected with an organic waste gas filter material carbon cage 31. The rear surfaces of the UV upper lamp holder 9 and the UV lower lamp holder 30 are fixedly connected with a lamp frame 4. An ultraviolet microwave irradiation lamp 32 is arranged inside, and the UV upper lamp frame 9, the UV lower lamp frame 30 and the carbon cage of the organic waste gas filter material cooperate to form a carbon-based adsorption catalytic oxidation. The carbon-based adsorption catalytic oxidation realizes the adsorption-catalytic oxidation of low-concentration VOCs (volatile organic pollutants) in the carbon-based medium adsorption-nanocatalyst cross-linking structure. The adsorption and catalytic oxidation parts in the carbon-based adsorption catalytic oxidation realize the effective interception and removal of VOCs, and during the non-experimental operation time, through oxidation, in combination with a unique catalyst, the regeneration of the carbon-based catalytic oxidation adsorption material is realized, and the intercepted VOCs are decomposed into CO2 and H2O. At the same time, the 185 and 254nm ultraviolet microwave irradiation lamps 32 can effectively degrade the organic waste gas filter material, so that the filtering catalytic material can be regenerated in situ after adsorption saturation. The side surface of the organic adsorption box 10 is fixedly connected with an air duct 14, and the upper surface of the air duct 14 is fixedly connected with a smoke detector 11. The upper surface of the base 1 is fixedly connected with an organic box 12, and the machine box 12 is communicated with the air duct 14. The machine box 12 A fan 13 is fixedly connected inside. After the large particle impurities, inorganic pollutants and organic pollutants in the exhaust gas are purified, the fan 13 is connected to an external power supply, and the fan 13 is started so that it can extract the exhaust gas in the organic adsorption box 10 through the air duct 14. The exhaust gas concentration can be detected by the smoke detector 11. When the exhaust gas concentration does not meet the standard, the smoke detector 11 can transmit a signal to the external control end to stop the use of the fan 13 and purify the exhaust gas again. When the exhaust gas concentration meets the standard, it can be discharged normally through the fan 13. Embodiment 2

[0023] A method for preparing a laboratory waste gas dry adsorption filter material comprises the following steps: S1. Immerse the water-resistant honeycomb activated carbon in a mixed solution of polyethylene glycol, polyvinyl alcohol, nano-titanium dioxide and water for about 30 seconds, then take it out, drain off the excess solution, place it on a tray and dry it in a natural ventilation environment or dry it at low temperature to obtain a special carbon-based filter material for purifying organic pollutants.

[0024] S2. Mix SDG raw material powder, attapulgite, silica sol, glass fiber (short fiber / powder), sodium carboxymethyl cellulose (CMC) and other materials, design a special honeycomb molding die for extrusion molding, dry naturally at room temperature for 48 hours, dry at 90-100 ° C for 4-6 hours until constant weight, and calcine at 500 ° C for 4 hours at a heating rate of 5 ° C / min under nitrogen protection. After natural cooling, a special filter material for purifying inorganic pollutants (mainly acidic substances) is obtained.

[0025] The ignition point of the organic waste gas filter material is greater than 500°C, the iodine adsorption value is greater than 1100mg / g, the specific surface area (true density total pore volume) is greater than 1200m2 / g, the carbon tetrachloride adsorption rate is greater than 80%, the xylene adsorption weight ratio is greater than 50%, the formaldehyde adsorption weight ratio is greater than 22%, the benzene adsorption weight ratio is greater than 52%, and the acetone adsorption weight ratio is greater than 47%, which reduces the difficulty of waste gas treatment and improves the treatment efficiency. During purification treatment, the honeycomb carbon-based filter material adsorbs organic pollutants in the laboratory waste gas and stores them in the filter material structure. During non-purification treatment time, the filter material loaded with nano-TiO2 degrades the organic pollutants adsorbed in the filter material structure through light-excited nano-TiO2 catalytic oxidation, and falls off from the surface of the filter material honeycomb pore structure, achieving in-situ regeneration of the carbon-based filter material, and the carbon-based replacement cycle can be extended by 4-5 times.

[0026] When in use, the exhaust gas is discharged into the interior of the primary filter box 6 through the air intake pipe 5, and the large particle impurities in the exhaust gas can be intercepted by the filter screen 7 to perform the primary filtration of the exhaust gas. The exhaust gas in the primary filter box 6 can enter the interior of the inorganic adsorption box 2, so that the inorganic pollutants in the exhaust gas react chemically with the inorganic adsorption filter material plate 15 to generate new neutral salt substances stored in the inorganic adsorption filter material plate. The UV upper lamp holder 9, the UV lower lamp holder 30 and the organic exhaust gas filter material carbon cage cooperate to form a carbon-based adsorption catalytic oxidation. The adsorption and catalytic oxidation parts in the carbon-based adsorption catalytic oxidation realize the effective interception and removal of VOCs, and during non-experimental operation time, through Oxidation, with a unique catalyst, to achieve the regeneration of carbon-based catalytic oxidation adsorption materials, decompose the intercepted VOCs into CO2, H2O, and at the same time, through the 185, 254nm ultraviolet microwave irradiation lamp 32, can effectively degrade the organic waste gas filter material, so that the filter catalytic material can be regenerated in situ after adsorption saturation, start the fan 13 so that it can extract the waste gas in the organic adsorption box 10 through the air duct 14, use the smoke detector 11 to detect the waste gas concentration, when the waste gas concentration does not meet the standard, the smoke detector 11 can transmit a signal to the external control end to stop the use of the fan 13 to recycle the waste gas. Purification, when the exhaust gas concentration reaches the standard, it can be discharged normally through the fan 13. When the large particles in the exhaust gas are filtered out, the primary filter box 6 is used as a medium to attract the first magnetic block 25. When the first magnetic block 25 and the second magnetic block 29 are attracted, the staff can push the cross bar 27 up and down, so that the connecting plate 22 is affected by the attraction between the first magnetic block 25 and the second magnetic block 29. When the cross bar 27 moves up and down, the connecting plate 22 can drive the moving plate 23 to move up and down. Through the up and down movement of the moving plate 23, the cleaning brush 24 can clean the impurities adsorbed on the surface of the filter screen 7. After the impurities are cleaned, the baffle 28 can be pulled forward so that the baffle 28 can be removed from the primary filter. The filter screen 7 extends out from the inside of the box 6, and the impurities cleaned from the surface of the filter screen 7 can fall into the inside of the collecting tank 3 for collection, which is convenient for the staff to clean up the fallen impurities. When the exhaust gas is treated, the threaded rod 18 is twisted to separate the cover plate 19 from the top of the inorganic adsorption box 2, and the handle 8 is held so that the cover plate 19 can be lifted upward. When the cover plate 19 is lifted upward, the mounting plate 21 can drive the inorganic adsorption filter material plate 15 and the interlocking block 17 to move upward together, so that the interlocking block 17 can be separated from the inside of the interlocking seat 16, and the inorganic adsorption filter material plate 15 can extend from the inside of the inorganic adsorption box 2, making it convenient to replace and use the inorganic adsorption filter material plate 15.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An in-situ regeneration device for dry adsorption filter material of waste gas for laboratory use, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a primary filter box (6), the upper surface of the base (1) is fixedly connected to an inorganic adsorption box (2), and the inorganic adsorption box (2) is located on the right side of the primary filter box (6), the upper surface of the base (1) is fixedly connected to an organic adsorption box (10), and the organic adsorption box (10) is located on the right side of the inorganic adsorption box (2), the inner top wall of the organic adsorption box (10) is fixedly connected to a UV upper lamp holder (9), the inner bottom wall of the organic adsorption box (10) is fixedly connected to a UV lower lamp holder (30), and the UV lower lamp holder (30) is located below the UV upper lamp holder (9), and the rear surfaces of the UV upper lamp holder (9) and the UV lower lamp holder (30) are both fixedly connected to an organic waste gas filter material carbon cage (31); The upper surface of the inorganic adsorption box (2) is provided with a cover plate (19), the lower surface of the cover plate (19) is fixedly connected to a connecting block (20), the lower surface of the connecting block (20) is fixedly connected to a mounting plate (21), the lower surface of the mounting plate (21) is fixedly connected to a chimeric block (17), the lower surface of the mounting plate (21) is fixedly connected to an inorganic adsorption filter plate (15), the inner wall of the inorganic adsorption box (2) is fixedly connected to a chimeric seat (16), and the chimeric seat (16) is chimerically connected to the chimeric block (17).

2. The in-situ regeneration equipment for dry adsorption filter material for laboratory waste gas according to claim 1, characterized in that: A filter screen (7) is fixedly connected to the interior of the primary filter box (6), and an air intake pipe (5) is fixedly connected to the side surface of the primary filter box (6).

3. The in-situ regeneration equipment for laboratory waste gas dry adsorption filter material according to claim 2, characterized in that: A movable plate (23) is sleeved on the side surface of the filter (7), a cleaning brush (24) is provided on the side surface of the movable plate (23), and the cleaning brush (24) is in contact with both sides of the filter (7), a connecting plate (22) is fixedly connected to the front surface of the movable plate (23), and a first magnetic block (25) is provided on the front surface of the connecting plate (22).

4. The in-situ regeneration equipment for dry adsorption filter material for laboratory waste gas according to claim 1, characterized in that: A second magnetic block (29) is disposed on the front surface of the primary filter box (6), and the second magnetic block (29) is attracted to the first magnetic block (25); a metal plate (26) is disposed on the front surface of the second magnetic block (29), and a cross bar (27) is fixedly connected to the front surface of the metal plate (26).

5. The in-situ regeneration equipment for dry adsorption filter material for laboratory waste gas according to claim 1, characterized in that: A baffle (28) is slidably connected to the front surface of the primary filter box (6), and a collecting groove (3) is provided inside the base (1), and the collecting groove (3) is communicated with the primary filter box (6).

6. The in-situ regeneration equipment for dry adsorption filter material for laboratory waste gas according to claim 1, characterized in that: The cover plate (19) is internally threadedly connected to a threaded rod (18), and the threaded rod (18) is threadedly connected to the primary filter box (6), and a handle (8) is fixedly connected to the upper surface of the cover plate (19).

7. The in-situ regeneration equipment for dry adsorption filter material for laboratory waste gas according to claim 1, characterized in that: The rear surfaces of the UV upper lamp frame (9) and the UV lower lamp frame (30) are both fixedly connected to a lamp frame (4), and an ultraviolet microwave irradiation lamp (32) is arranged inside the lamp frame (4).

8. The in-situ regeneration equipment for dry adsorption filter material for laboratory waste gas according to claim 1, characterized in that: The side surface of the organic adsorption box (10) is fixedly connected to an air duct (14), and the upper surface of the air duct (14) is fixedly connected to a smoke detector (11).

9. The in-situ regeneration equipment for dry adsorption filter material for laboratory waste gas according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to a machine box (12), and the machine box (12) is in communication with an air duct (14), and a fan (13) is fixedly connected inside the machine box (12).

10. A method for preparing a laboratory waste gas dry adsorption filter material according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Immerse the water-resistant honeycomb activated carbon in a mixed solution of polyethylene glycol, polyvinyl alcohol, nano-titanium dioxide and water for about 30 seconds, then remove it, drain off the excess solution, place it on a tray and dry it in a natural ventilation environment or dry it at low temperature to obtain a special carbon-based filter material for purifying organic pollutants; S2. Mix SDG raw material powder, attapulgite, silica sol, glass fiber (short fiber / powder), sodium carboxymethyl cellulose (CMC) and other materials, design a special honeycomb molding die for extrusion molding, dry naturally at room temperature for 48 hours, dry at 90-100 ° C for 4-6 hours until constant weight, and calcine at 500 ° C for 4 hours at a heating rate of 5 ° C / min under nitrogen protection. After natural cooling, a special filter material for purifying inorganic pollutants (mainly acidic substances) is obtained.

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