Activated carbon adsorption and desorption catalytic combustion equipment

Abstract

The invention discloses activated carbon adsorption and desorption catalytic combustion equipment, and belongs to the field of waste gas treatment. The activated carbon adsorption and desorption catalytic combustion equipment comprises a spray tower, a dry filter, a catalytic combustion furnace, a heat exchange mechanism, an exhaust fan and a discharge pipe, an air inlet pipe is arranged at the air inlet end of the spray tower, and a first connecting pipe is arranged between the air outlet end of the spray tower and the air inlet end of the dry filter; the air inlet end of the air exhaust fan is provided with an air exhaust pipe, and the air exhaust end of the dry filter is provided with a second connecting pipe; the first gas inlet pipe is arranged at one end of the adsorption tower, and the first gas inlet pipe is communicated with the second connecting pipe; the catalytic efficiency of desorbed organic matters is effectively improved, meanwhile, small-particle dust is effectively prevented from being attached to the main activated carbon plate to affect the adsorption effect and the desorption effect, and waste gas is effectively prevented from being exhausted into the atmosphere to pollute the air.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, in particular to activated carbon adsorption and desorption catalytic combustion equipment. Background Art

[0002] Catalytic combustion waste gas treatment equipment is a device used to treat organic waste gas. Activated carbon adsorption and desorption catalytic combustion equipment mainly includes a spray tower for dust removal, a dry filter, an adsorption tower, a desorption fan, a catalytic combustion furnace and a heat exchange mechanism. The treatment of organic waste gas by activated carbon adsorption utilizes the characteristic of activated carbon micropores that can absorb organic substances, adsorbs the organic solvent in the organic waste gas into the activated carbon and concentrates it. The gas after adsorption and purification meets the standards and is directly discharged. Desorption utilizes hot air to heat the organic solvent adsorbed in the activated carbon, desorbs the organic solvent from the activated carbon, and introduces the concentrated high-concentration waste gas into the catalytic combustion device. Under the action of the catalyst, the organic substance is oxidized at the catalytic ignition temperature and converted into harmless water and carbon dioxide and discharged into the atmosphere.

[0003] When the current activated carbon adsorption and desorption catalytic combustion equipment adsorbs organic waste gas, the gas filtered through the spray tower and dry filter may still contain some small particles of dust or impurities. After entering the adsorption tower, the small particles of dust and impurities are adsorbed by the activated carbon. When desorbing them, backblowing is generally used for desorption. At this time, some dust in the activated carbon may be blown into the catalytic combustion furnace. At this time, the dust will not be catalyzed at high temperature and may adhere to the catalyst, which may affect its desorption efficiency. In addition, some activated carbon with small particles of dust may affect the adsorption effect on organic waste gas. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an activated carbon adsorption and desorption catalytic combustion device that can overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] Activated carbon adsorption and desorption catalytic combustion equipment, including: a spray tower, a dry filter, a catalytic combustion furnace, a heat exchange mechanism, an exhaust fan and a discharge pipe, the air inlet end of the spray tower is provided with an air inlet pipe, the exhaust end of the spray tower and the air inlet end of the dry filter are provided with a first connecting pipe, the air inlet end of the exhaust fan is provided with an exhaust pipe, the exhaust end of the dry filter is provided with a second connecting pipe, and also includes: multiple adsorption towers; a first air inlet pipe, provided at one end of the adsorption tower, and the first air inlet pipe is connected to the second connecting pipe; a first exhaust pipe, provided at one end of the adsorption tower away from the first air inlet pipe, and the first exhaust pipe is connected to the exhaust pipe, and a shut-off valve is provided in both the first exhaust pipe and the first air inlet pipe; a desorption fan; a desorption exhaust pipe, provided at the exhaust end of the desorption fan Gas end, and the middle part of the desorption exhaust pipe is arranged in the heat exchange mechanism; a desorption exhaust pipe is arranged at the exhaust end of the desorption fan; a plurality of main activated carbon plates are arranged in the adsorption tower; a desorption upper air duct is arranged at one end of the adsorption tower close to the first exhaust pipe, and a plurality of the desorption upper air ducts are connected to the desorption exhaust pipe; a desorption connecting pipe is arranged on the adsorption tower, and the desorption connecting pipe is arranged at one end of the adsorption tower away from the desorption upper air duct; a desorption return pipe is arranged at the input end of the catalytic combustion furnace, and a plurality of the desorption connecting pipes are connected to the desorption return pipe; a discharge connecting pipe is arranged at the output end of the catalytic combustion furnace, and the discharge connecting pipe is connected to the exhaust pipe; a controller is arranged on the spray tower; a filter component for filtering the gas in the desorption connecting pipe.

[0007] In order to facilitate dust filtering, the filter assembly further includes a filter box, a plurality of filter plates are arranged in the filter box, and the desorption connecting pipe is connected to the input end of the filter box.

[0008] In order to facilitate the re-processing of the waste gas remaining in the adsorption tower, further, the output end of the filter box is fixedly connected with a return air pipe, and the return air pipe is connected to the second connecting pipe.

[0009] In order to prevent dust from entering the main activated carbon plate, further, the first air inlet pipe is arranged on the lower side of the adsorption tower, and the first exhaust pipe is arranged on the upper side of the adsorption tower.

[0010] In order to facilitate dust removal of the auxiliary activated carbon plate, the adsorption tower is further provided with a detachable auxiliary activated carbon plate, a first cavity is provided between the auxiliary activated carbon plate and the main activated carbon plate, and a desorption downwind duct connected to the first cavity is provided on the adsorption tower, and the desorption downwind duct is connected to the desorption exhaust pipe.

[0011] In order to facilitate the cleaning of the secondary activated carbon plate, it further includes a water pump, the water pump end of the water pump is provided with a water pump pipe, the water discharge end of the water pump is provided with a water supply pipe, a water spray pipe is provided in the first cavity, the water spray pipe is provided with multiple first water spray ports and second water spray ports, the adsorption tower is provided with a water supply control pipe connected to the water spray pipe, and the water supply control pipe is connected to the water supply pipe, a storage barrel is provided on the lower side of the filter box, a drainage pipe is provided between the desorption connecting pipe and the storage barrel, a drain pipe is provided on one side of the storage barrel, and a connecting groove connected to the input end of the filter box is provided at the upper end of the storage barrel, and a filter sponge is provided in the filter box.

[0012] In order to facilitate dust removal of the main activated carbon plate, an air cooler is further included, the air exhaust end of the air cooler is provided with a cold air exhaust pipe, and a cold air supply pipe is provided between the exhaust end of the air cooler and the desorption exhaust pipe.

[0013] In order to facilitate the discharge of waste gas in the adsorption tower, flow control valves are further provided in the desorption upper air duct and the desorption lower air duct.

[0014] In order to prevent the cleaning waste water from entering the first air inlet pipe, an extension pipe communicating with the first air inlet pipe is fixedly connected to the adsorption tower, and a conical guide plate is provided on the upper side of the extension pipe.

[0015] In order to facilitate the discharge of the cleaning wastewater, the adsorption tower is further provided with an inclined plate, and the inclined plate is matched with the desorption connecting pipe.

[0016] Compared with the prior art, the present invention provides an activated carbon adsorption and desorption catalytic combustion device, which has the following beneficial effects:

[0017] 1. The activated carbon adsorption and desorption catalytic combustion equipment enters the adsorption tower through the desorption upper air duct, and back-blows the main activated carbon plate in the desorption adsorption tower to make the small particles of dust adsorbed on the main activated carbon plate fall off and move along the air flow direction. The gas with small particles of dust enters the storage barrel through the desorption connecting pipe, and then enters the filter box through the connecting groove. The filter plate in the filter box filters the small particles of dust in the gas, and the filtered gas is transported to the second connecting pipe again through the return air duct, and then the gas heated by the heat exchange mechanism is extracted by the desorption fan, and the gas is The gas is transported to the desorption exhaust pipe, and after entering the adsorption tower, the organic matter adsorbed on the main activated carbon plate is desorbed. The desorbed organic matter enters the catalytic combustion furnace through the desorption connecting pipe and the desorption reflux pipe in turn for catalytic combustion. The gas generated after combustion is discharged into the exhaust pipe through the discharge connecting pipe. When desorbing the adsorption tower, it effectively prevents small particles of dust in the desorbed gas from adhering to the catalyst in the catalytic combustion furnace and affecting the catalytic combustion of organic matter, thereby effectively improving the efficiency of the catalysis of the desorbed organic matter, and effectively preventing small particles of dust from adhering to the main activated carbon plate and affecting its adsorption and desorption effects.

[0018] 2. The activated carbon adsorption and desorption catalytic combustion equipment uses a return air pipe to transport the gas in the adsorption tower to the second connecting pipe, effectively preventing the adsorbed gas in the adsorption tower from directly entering the catalytic combustion furnace and then being discharged, thereby effectively preventing the exhaust gas from being discharged into the atmosphere to pollute the air.

[0019] 3. The activated carbon adsorption and desorption catalytic combustion equipment closes the solenoid valve in the desorption upper air duct through the controller, and opens the solenoid valve in the desorption lower air duct. At this time, the gas directly enters the first cavity through the desorption lower air duct. At this time, the gas entering is directly blown to the auxiliary activated carbon plate, thereby effectively preventing multiple main activated carbon plates from blocking the wind and affecting its dust removal effect. At the same time, the auxiliary activated carbon plate is used to adsorb most of the small particles of dust, which can effectively reduce the frequency of replacing the main activated carbon plate and improve the adsorption efficiency and desorption efficiency of the main activated carbon plate.

[0020] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present invention effectively improves the efficiency of catalysis for desorption of organic matter, while effectively preventing small particles of dust from adhering to the main activated carbon plate to affect its adsorption and desorption effects, and effectively prevents exhaust gas from being discharged into the atmosphere to pollute the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the activated carbon adsorption and desorption catalytic combustion equipment proposed by the present invention Figure 1 ;

[0022] Figure 2Schematic diagram of the structure of the activated carbon adsorption and desorption catalytic combustion equipment proposed by the present invention Figure 2 ;

[0023] Figure 3 Schematic diagram of the structure of the activated carbon adsorption and desorption catalytic combustion equipment proposed by the present invention Figure 3 ;

[0024] Figure 4 This is a cross-sectional schematic diagram of the activated carbon adsorption and desorption catalytic combustion equipment proposed by the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the water spray pipe in the activated carbon adsorption and desorption catalytic combustion equipment proposed by the present invention;

[0026] Figure 6 This is the working flow diagram of the activated carbon adsorption and desorption catalytic combustion equipment proposed by the present invention.

[0027] In the figure: 1. Spray tower; 101. Air inlet pipe; 102. First connecting pipe; 103. Dry filter; 104. Second connecting pipe; 105. First air inlet pipe; 106. First exhaust pipe; 107. Exhaust pipe; 108. Exhaust fan; 109. Discharge pipe; 110. Controller; 2. Adsorption tower; 201. Main activated carbon plate; 202. Secondary activated carbon plate; 203. First cavity; 204. Water spray pipe; 205. First water spray port; 206. Second water spray port; 207. Extension pipe; 208. Conical guide plate; 209. Inclined plate; 3. Catalytic combustion furnace; 301. Heat exchange mechanism; 30 2. Discharge connecting pipe; 303. Desorption fan; 304. Desorption exhaust pipe; 305. Desorption exhaust pipe; 306. Desorption upper air duct; 307. Desorption lower air duct; 308. Flow control valve; 309. Air cooler; 310. Cold air exhaust pipe; 311. Cold air supply pipe; 4. Desorption connecting pipe; 401. Desorption return pipe; 402. Drain pipe; 403. Storage barrel; 404. Drain pipe; 405. Connecting trough; 406. Filter box; 407. Filter plate; 408. Filter sponge; 409. Return air duct; 5. Water pump; 501. Water extraction pipe; 502. Water supply pipe; 503. Water supply control pipe. DETAILED DESCRIPTION

[0028] 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.

[0029] Example 1: Reference Figures 1-6, activated carbon adsorption and desorption catalytic combustion equipment, including: a spray tower 1, a dry filter 103, a catalytic combustion furnace 3, a heat exchange mechanism 301, an exhaust fan 108 and a discharge pipe 109, the air inlet end of the spray tower 1 is provided with an air inlet pipe 101, a first connecting pipe 102 is provided between the exhaust end of the spray tower 1 and the air inlet end of the dry filter 103, the air inlet end of the exhaust fan 108 is provided with an exhaust pipe 107, and the exhaust end of the dry filter 103 is provided with a second The connecting pipe 104 further includes: a plurality of adsorption towers 2; a first air inlet pipe 105, which is arranged at one end of the adsorption tower 2, and the first air inlet pipe 105 is connected to the second connecting pipe 104; a first exhaust pipe 106, which is arranged at one end of the adsorption tower 2 away from the first air inlet pipe 105, and the first exhaust pipe 106 is connected to the exhaust pipe 107, and the first exhaust pipe 106 and the first air inlet pipe 105 are both provided with a stop valve; a desorption fan 303; a desorption exhaust pipe 304, The desorption exhaust pipe 305 is arranged at the exhaust end of the desorption fan 303, and the middle part of the desorption exhaust pipe 304 is arranged in the heat exchange mechanism 301; the desorption exhaust pipe 305 is arranged at the exhaust end of the desorption fan 303; multiple main activated carbon plates 201 are arranged in the adsorption tower 2; the desorption upper air duct 306 is arranged at one end of the adsorption tower 2 close to the first exhaust pipe 106, and multiple desorption upper air ducts 306 are connected to the desorption exhaust pipe 305; the desorption connecting pipe 4 is arranged on the adsorption tower 2, The desorption connecting pipe 4 is arranged at one end of the adsorption tower 2 away from the desorption upper air duct 306; the desorption reflux pipe 401 is arranged at the input end of the catalytic combustion furnace 3, and multiple desorption connecting pipes 4 are connected to the desorption reflux pipe 401; the discharge connecting pipe 302 is arranged at the output end of the catalytic combustion furnace 3, and the discharge connecting pipe 302 is connected to the exhaust pipe 107; the controller 110 is arranged on the spray tower 1; and a filter component is used to filter the gas in the desorption connecting pipe 4.

[0030] It should be noted that solenoid valves are provided in the desorption upper air duct 306, the desorption lower air duct 307, the desorption connecting pipe 4, the desorption return pipe 401, the drain pipe 402, the drain pipe 404 and the water supply control pipe 503, and one-way valves are provided in the desorption exhaust pipe 305, the desorption upper air duct 306, the desorption lower air duct 307, the cold air supply pipe 311, the return air pipe 409 and the water supply control pipe 503.

[0031] The filter assembly includes a filter box 406 , in which a plurality of filter plates 407 are arranged. The desorption connecting pipe 4 is connected to the input end of the filter box 406 .

[0032] An output end of the filter box 406 is fixedly connected to a return air duct 409 , and the return air duct 409 is communicated with the second connecting pipe 104 .

[0033] The first air inlet pipe 105 is provided at the lower side of the adsorption tower 2 , and the first air outlet pipe 106 is provided at the upper side of the adsorption tower 2 .

[0034] The system further includes a cooling fan 309 , a cooling air exhaust pipe 310 is provided at the air extraction end of the cooling fan 309 , and a cooling air supply pipe 311 is provided between the exhaust end of the cooling fan 309 and the desorption exhaust pipe 305 .

[0035] When treating the exhaust gas, the exhaust gas is transported to the spray tower 1 through the air inlet pipe 101 by the external air supply mechanism for dust reduction treatment. The gas after dust reduction treatment is filtered through the dry filter 103, and then enters two of the adsorption towers 2 through the second connecting pipe 104 and the first air inlet pipe 105. The organic matter and small particles of dust in the exhaust gas are adsorbed by the main activated carbon plate 201 in the adsorption tower 2. The gas treated by the main activated carbon plate 201 in the adsorption tower 2 is discharged into the exhaust pipe 107 through the first exhaust pipe 106, and finally the treated gas is transported to the exhaust pipe 109 by the exhaust fan 108 for discharge.

[0036] When it is necessary to desorb one of the adsorption towers 2, the stop valve in the first air inlet pipe 105 and the stop valve in the first exhaust pipe 106 of the spare adsorption tower 2 are opened, and then the stop valve in the first air inlet pipe 105 and the stop valve in the first exhaust pipe 106 of the adsorption tower 2 that needs to be desorbed are closed, and the controller 110 opens the solenoid valve in the drain pipe 402. At this time, the air cooler 309 is turned on, and the air cooler 309 draws outside air and can be connected to the cold air exhaust pipe 310 of the air cooler 309 through the external filtering mechanism. The air cooler 309 passes through the air cooler 309. The cold air supply pipe 311 transports the extracted gas to the desorption exhaust pipe 305, and the gas enters the adsorption tower 2 through the desorption upper air pipe 306, and back-blows the main activated carbon plate 201 in the desorption adsorption tower 2, so that the small particles of dust adsorbed on the main activated carbon plate 201 fall off and move along the air flow direction. The gas with small particles of dust enters the storage barrel 403 through the desorption connecting pipe 4, and then enters the filter box 406 through the connecting groove 405. The filter plate 407 in the filter box 406 filters the small particles of dust in the gas. The filtered gas is transported to the second connecting pipe 104 again through the return air pipe 409. After the air cooler 309 is turned on for a period of time, the controller 110 closes the solenoid valve in the drain pipe 402, opens the solenoid valve in the desorption return pipe 401, turns on the desorption fan 303, and turns off the air cooler 309. At this time, the desorption fan 303 extracts the gas heated by the heat exchange mechanism 301 and transports the gas to the desorption exhaust pipe 305. After the gas enters the adsorption tower 2, it desorbs the organic matter adsorbed on the main activated carbon plate 201. The desorbed organic matter enters the catalytic combustion furnace 3 through the desorption connecting pipe 4 and the desorption reflux pipe 401 in turn for catalytic combustion, and the gas generated after combustion is discharged into the exhaust pipe 107 through the discharge connecting pipe 302. When desorbing the adsorption tower 2, it effectively prevents small particles of dust in the desorbed gas from adhering to the catalyst in the catalytic combustion furnace 3 and affecting the catalytic combustion of the organic matter, thereby effectively improving the efficiency of the catalysis of the desorbed organic matter, and at the same time effectively preventing small particles of dust from adhering to the main activated carbon plate 201 and affecting its adsorption and desorption effects.

[0037] The return air duct 409 is used to transport the gas in the adsorption tower 2 to the second connecting pipe 104, effectively preventing the adsorbed gas in the adsorption tower 2 from directly entering the catalytic combustion furnace 3 and then being discharged, thereby effectively preventing the exhaust gas from being discharged into the atmosphere and polluting the air.

[0038] During the operation of the air cooler 309, the catalytic combustion furnace 3 and the heat exchange mechanism 301 can be turned on for preheating, thereby effectively improving the desorption efficiency.

[0039] Example 2: Reference Figures 1-6, activated carbon adsorption and desorption catalytic combustion equipment, is basically the same as Example 1, further, a secondary activated carbon plate 202 is detachably connected to the adsorption tower 2, a first cavity 203 is provided between the secondary activated carbon plate 202 and the main activated carbon plate 201, and a desorption downwind duct 307 connected to the first cavity 203 is provided on the adsorption tower 2, and the desorption downwind duct 307 is connected to the desorption exhaust pipe 305.

[0040] When the adsorption tower 2 adsorbs organic matter in the exhaust gas, the gas discharged from the first air inlet pipe 105 is first preliminarily adsorbed by the auxiliary activated carbon plate 202, so that most of the dust is adsorbed on the auxiliary activated carbon plate 202, thereby effectively preventing a large amount of small particles of dust from adhering to the main activated carbon plate 201.

[0041] During the desorption process of the main activated carbon plate 201 and the auxiliary activated carbon plate 202 in the adsorption tower 2, the solenoid valve in the desorption upper air duct 306 is first closed by the controller 110, and then the solenoid valve in the desorption lower air duct 307 is opened. At this time, the gas directly enters the first cavity 203 through the desorption lower air duct 307. The gas entering at this time is directly blown toward the auxiliary activated carbon plate 202, thereby effectively preventing multiple main activated carbon plates 201 from blocking the wind and affecting its dust removal effect. At the same time, the auxiliary activated carbon plate 202 is used to adsorb most of the small particles of dust, which can effectively reduce the frequency of replacing the main activated carbon plate 201 and improve the adsorption efficiency and desorption efficiency of the main activated carbon plate 201.

[0042] After the auxiliary activated carbon plate 202 has been dusted for a certain period of time, the controller 110 closes the solenoid valve in the desorption lower air duct 307 and opens the solenoid valve in the desorption upper air duct 306 to desorb the main activated carbon plate 201 and the auxiliary activated carbon plate 202.

[0043] As another embodiment, when desorbing the main activated carbon plate 201 and the auxiliary activated carbon plate 202 in the adsorption tower 2, and in the process of turning on the cold air blower 309, the solenoid valve in the desorption upper air duct 306 is first opened and the solenoid valve in the desorption lower air duct 307 is closed through the controller 110 to remove dust from the main activated carbon plate 201, and then the solenoid valve in the desorption upper air duct 306 is closed and the solenoid valve in the desorption lower air duct 307 is opened to remove dust from the auxiliary activated carbon plate 202, and finally the solenoid valve in the desorption lower air duct 307 is closed and the solenoid valve in the desorption upper air duct 306 is opened, and the desorption fan 303 is turned on to perform the desorption operation.

[0044] Example 3: Reference Figures 1-6, activated carbon adsorption and desorption catalytic combustion equipment, is basically the same as Example 1, and further includes a water pump 5, a water pump end of the water pump 5 is provided with a water pump pipe 501, a water supply pipe 502 is provided at the drainage end of the water pump 5, a water spray pipe 204 is provided in the first cavity 203, and a plurality of first water spray ports 205 and second water spray ports 206 are provided on the water spray pipe 204, a water supply control pipe 503 connected to the water spray pipe 204 is provided on the adsorption tower 2, and the water supply control pipe 503 is connected to the water supply pipe 502, a storage barrel 403 is provided on the lower side of the filter box 406, a drainage pipe 402 is provided between the desorption connecting pipe 4 and the storage barrel 403, a drain pipe 404 is provided on one side of the storage barrel 403, and a connecting groove 405 connected to the input end of the filter box 406 is provided at the upper end of the storage barrel 403, and a filter sponge 408 is provided in the filter box 406.

[0045] Flow control valves 308 are provided in both the desorption upper air duct 306 and the desorption lower air duct 307 .

[0046] After the main activated carbon plate 201 and the auxiliary activated carbon plate 202 are back-blown for dust removal for a certain period of time, the controller 110 turns on the water pump 5 and the solenoid valve in the drain pipe 402, and at the same time closes the solenoid valve in the desorption reflux pipe 401. The water pump 5 extracts cooled distilled water through the pumping pipe 501, and transports the distilled water to the water spray pipe 204 through the water supply pipe 502. The distilled water is then sprayed onto the auxiliary activated carbon plate 202 through the first water spray port 205 and the second water spray port 206 on the water spray pipe 204 to clean the auxiliary activated carbon plate 202. The cleaned sewage enters the storage barrel 403 through the desorption connecting pipe 4 and the drain pipe 402, thereby effectively cleaning the auxiliary activated carbon plate 202, thereby effectively improving the dust removal effect on the auxiliary activated carbon plate 202.

[0047] The diameter of the first water spray port 205 is greater than that of the second water spray port 206 . The first water spray port 205 is arranged on the inner side of the water spray pipe 204 , and the second water spray port 206 is arranged on the lower side of the water spray pipe 204 .

[0048] In a specific embodiment, when desorbing the main activated carbon plate 201 and the auxiliary activated carbon plate 202, the gas heated by the heat exchange mechanism 301 is extracted by the desorption fan 303, and the hot gas is transported to the adsorption tower 2 through the desorption upper air duct 306. At this time, the water on the auxiliary activated carbon plate 202 is evaporated and discharged, and finally the organic matter on the main activated carbon plate 201 and the auxiliary activated carbon plate 202 is desorbed.

[0049] When the main activated carbon plate 201 and the auxiliary activated carbon plate 202 in the adsorption tower 2 are dust-removed, the solenoid valves in the desorption upper air duct 306 and the desorption lower air duct 307 are both opened by the controller 110, and then the flow control valve 308 in the desorption upper air duct 306 is controlled by the controller 110 to gradually increase the gas passing through the desorption upper air duct 306, and the flow control valve 308 in the desorption lower air duct 307 is controlled by the controller 110 to gradually reduce the gas passing through the desorption lower air duct 307. It should be noted that, initially, the gas completely flows out of the desorption lower air duct 307, and the flow control valve 308 in the desorption upper air duct 306 is in a closed state, thereby regulating the gas and effectively preventing the gas from flowing back upward to the main activated carbon plate 201. At the same time, the gas slowly flowing downward from the main activated carbon plate 201 effectively prevents the dust in the first cavity 203 from floating up, and effectively discharges the exhaust gas in the adsorption tower 2 completely.

[0050] Among them, during each cleaning, the amount of water extracted by the water pump 5 is fixed, and after each cleaning is completed, the solenoid valve in the drain pipe 404 is opened by the controller 110 to release part of the water in the storage barrel 403. A part of water is always stored in the storage barrel 403, so that the water level is higher than the drain pipe 402. The gas containing dust and impurities discharged from the drain pipe 402 enters the storage barrel 403, and the dust in the exhaust gas is adsorbed by the water in the storage barrel 403, thereby effectively improving its dust removal effect.

[0051] Example 4: Reference Figures 1-6 The activated carbon adsorption and desorption catalytic combustion equipment is basically the same as Example 1. Furthermore, an extension pipe 207 connected to the first air inlet pipe 105 is fixedly connected to the adsorption tower 2, and a conical guide plate 208 is provided on the upper side of the extension pipe 207.

[0052] An inclined plate 209 is provided in the adsorption tower 2 , and the inclined plate 209 matches the desorption connecting pipe 4 .

[0053] The provision of the extension pipe 207 , the conical guide plate 208 and the inclined plate 209 facilitates the discharge of water from the adsorption tower 2 , while effectively preventing sewage from entering the first air inlet pipe 105 and the second connecting pipe 104 .

[0054] By setting the conical guide plate 208, the gas in the first air inlet pipe 105 is effectively slowed down to prevent it from blowing directly onto the auxiliary activated carbon plate 202, causing the middle of the auxiliary activated carbon plate 202 to be saturated first and then the surrounding areas, thereby enabling the auxiliary activated carbon plate 202 to be evenly adsorbed.

[0055] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. Activated carbon adsorption and desorption catalytic combustion equipment, including: A spray tower (1), a dry filter (103), a catalytic combustion furnace (3), a heat exchange mechanism (301), an exhaust fan (108) and a discharge pipe (109), wherein the air inlet end of the spray tower (1) is provided with an air inlet pipe (101), a first connecting pipe (102) is provided between the exhaust end of the spray tower (1) and the air inlet end of the dry filter (103), an exhaust pipe (107) is provided at the air inlet end of the exhaust fan (108), and a second connecting pipe (104) is provided at the exhaust end of the dry filter (103), and the invention is characterized in that it further comprises: multiple adsorption towers (2); A first air inlet pipe (105) is provided at one end of the adsorption tower (2), and the first air inlet pipe (105) is connected to the second connecting pipe (104); A first exhaust pipe (106) is provided at one end of the adsorption tower (2) away from the first air inlet pipe (105), the first exhaust pipe (106) is connected to the exhaust pipe (107), and both the first exhaust pipe (106) and the first air inlet pipe (105) are provided with a stop valve; Desorption fan (303); A desorption exhaust pipe (304) is arranged at the exhaust end of the desorption fan (303), and the middle portion of the desorption exhaust pipe (304) is arranged in the heat exchange mechanism (301); a desorption exhaust pipe (305), arranged at the exhaust end of the desorption fan (303); A plurality of main activated carbon plates (201) are arranged in the adsorption tower (2); a desorption upper air duct (306) disposed at one end of the adsorption tower (2) close to the first exhaust pipe (106), and a plurality of the desorption upper air ducts (306) are all connected to the desorption exhaust pipe (305); A desorption connecting pipe (4) is provided on the adsorption tower (2), and the desorption connecting pipe (4) is provided at one end of the adsorption tower (2) away from the desorption upper air duct (306); A desorption reflux pipe (401) is provided at the input end of the catalytic combustion furnace (3), and a plurality of the desorption connecting pipes (4) are all connected to the desorption reflux pipe (401); A discharge connecting pipe (302) is provided at the output end of the catalytic combustion furnace (3), and the discharge connecting pipe (302) is connected to the exhaust pipe (107); A controller (110) is provided on the spray tower (1); A filter assembly for filtering gas in a desorption connecting pipe (4).

2. The activated carbon adsorption and desorption catalytic combustion equipment according to claim 1, characterized in that: The filter assembly comprises a filter box (406), a plurality of filter plates (407) are arranged in the filter box (406), and the desorption connecting pipe (4) is connected to the input end of the filter box (406).

3. The activated carbon adsorption and desorption catalytic combustion equipment according to claim 2, characterized in that: The output end of the filter box (406) is fixedly connected to a return air pipe (409), and the return air pipe (409) is connected to the second connecting pipe (104).

4. The activated carbon adsorption and desorption catalytic combustion equipment according to claim 3, characterized in that: The first air inlet pipe (105) is arranged on the lower side of the adsorption tower (2), and the first exhaust pipe (106) is arranged on the upper side of the adsorption tower (2).

5. The activated carbon adsorption and desorption catalytic combustion equipment according to claim 4, characterized in that: A secondary activated carbon plate (202) is detachably connected to the adsorption tower (2), a first cavity (203) is provided between the secondary activated carbon plate (202) and the main activated carbon plate (201), a desorption downwind duct (307) communicating with the first cavity (203) is provided on the adsorption tower (2), and the desorption downwind duct (307) is connected to the desorption exhaust pipe (305).

6. The activated carbon adsorption and desorption catalytic combustion equipment according to claim 5, characterized in that: The invention also includes a water pump (5), wherein a water pumping end of the water pump (5) is provided with a water pumping pipe (501), a water discharge end of the water pump (5) is provided with a water supply pipe (502), a water spraying pipe (204) is provided in the first cavity (203), a plurality of first water spraying ports (205) and second water spraying ports (206) are provided on the water spraying pipe (204), a water supply control pipe (503) in communication with the water spraying pipe (204) is provided on the adsorption tower (2), and the water supply control pipe (503) is connected to the water spraying pipe (204). 3) is connected to the water supply pipe (502), a storage barrel (403) is provided on the lower side of the filter box (406), a drainage pipe (402) is provided between the desorption connecting pipe (4) and the storage barrel (403), a water discharge pipe (404) is provided on one side of the storage barrel (403), a communication groove (405) connected to the input end of the filter box (406) is opened at the upper end of the storage barrel (403), and a filter sponge (408) is provided in the filter box (406).

7. The activated carbon adsorption-desorption catalytic combustion equipment according to claim 3, characterized in that: It also includes a cold air blower (309), wherein the air extraction end of the cold air blower (309) is provided with a cold air extraction pipe (310), and a cold air supply pipe (311) is provided between the exhaust end of the cold air blower (309) and the desorption exhaust pipe (305).

8. The activated carbon adsorption-desorption catalytic combustion equipment according to claim 5, characterized in that: Flow control valves (308) are provided in both the desorption upper air duct (306) and the desorption lower air duct (307).

9. The activated carbon adsorption-desorption catalytic combustion equipment according to claim 6, characterized in that: An extension pipe (207) communicating with the first air inlet pipe (105) is fixedly connected to the adsorption tower (2), and a conical guide plate (208) is provided on the upper side of the extension pipe (207).

10. The activated carbon adsorption-desorption catalytic combustion equipment according to claim 9, characterized in that: An inclined plate (209) is provided in the adsorption tower (2), and the inclined plate (209) matches the desorption connecting pipe (4).

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