CN116571057A - High-efficiency adsorption zeolite rotating wheel desorption device and method - Google Patents
High-efficiency adsorption zeolite rotating wheel desorption device and method Download PDFInfo
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- CN116571057A CN116571057A CN202310623144.1A CN202310623144A CN116571057A CN 116571057 A CN116571057 A CN 116571057A CN 202310623144 A CN202310623144 A CN 202310623144A CN 116571057 A CN116571057 A CN 116571057A
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- 238000003795 desorption Methods 0.000 title claims abstract description 201
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 60
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 58
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000010457 zeolite Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000007789 gas Substances 0.000 claims abstract description 112
- 238000001816 cooling Methods 0.000 claims abstract description 97
- 239000002808 molecular sieve Substances 0.000 claims abstract description 68
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000010815 organic waste Substances 0.000 claims abstract description 41
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 239000002912 waste gas Substances 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009835 boiling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a zeolite rotating wheel desorption device and method with high-efficiency adsorption, wherein the device comprises a base, an air inlet box, a rotating wheel box and an air outlet box, wherein a molecular sieve rotating wheel is arranged in the rotating wheel box and is provided with an adsorption zone, a cooling zone and a desorption zone; the air inlet box is provided with an exhaust gas inlet and a desorption exhaust interface, the exhaust gas inlet is communicated with the air inlet of the adsorption zone, and the desorption exhaust interface is connected with the heat accumulating incinerator; the exhaust box is provided with a purified gas outlet which is communicated with an exhaust port of the adsorption area, and the purified gas outlet is connected with a tail gas discharge pipe. The invention carries out combustion after desorption and concentration of the organic waste gas, and takes the heat released by the combustion as a heat source of a desorption heat exchanger; the zeolite in the cooling area is cooled by taking a part of clean tail gas as cooling air flow, so that the zeolite has high adsorptivity after being cooled; the desorption efficiency and the treatment effect of the organic waste gas are obviously improved, and the purpose of continuous adsorption and efficient desorption of the organic waste gas is achieved.
Description
Technical Field
The invention relates to a zeolite rotating wheel, in particular to a zeolite rotating wheel desorption device and method for efficient adsorption, and belongs to the technical field of waste gas treatment.
Background
In the existing waste gas treatment technology, especially in the treatment technology of waste gas containing organic components, a treatment system based on a zeolite rotating wheel is generally adopted, and the zeolite rotating wheel is used for concentrating the waste gas with large air quantity and low concentration into the waste gas with high concentration and small air quantity, so that the investment cost and the operation cost of equipment are reduced, the high-efficiency treatment of VOC waste gas is improved, the waste gas is matched with a TO furnace or an RTO furnace for use, and the desorbed concentrated waste gas enters an incinerator for incineration, and harmful components are converted into harmless components and then are discharged. The zeolite rotating wheel repeatedly rotates to continuously adsorb, compress and desorb the separated VOC treatment steps, so that the continuous operation can be realized.
When the prior zeolite runner equipment is used for treating high-boiling-point VOC substances, if the desorption heat is too high, safety accidents such as explosion and the like are easy to occur to organic matter waste gas components desorbed under the high-temperature condition; if the desorption heat is insufficient, the desorption temperature cannot be enough, and the organic matters with high boiling points cannot be desorbed smoothly easily, so that the desorption efficiency of the zeolite rotating wheel is affected.
Disclosure of Invention
The invention aims to provide a zeolite rotating wheel desorption device and method capable of efficiently adsorbing so as to solve the problems in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
in one aspect, the invention provides a zeolite runner desorption device with high-efficiency adsorption, which comprises a base, wherein an air inlet box, a runner box and an air outlet box are fixedly arranged on the base, the air inlet box and the air outlet box are respectively arranged at two sides of the runner box, a molecular sieve runner is arranged in the runner box, and the molecular sieve runner is provided with an adsorption area, a cooling area and a desorption area; the device is characterized in that one side of the air inlet box is communicated with the side part of the rotating wheel box, one side of the air inlet box, far away from the rotating wheel box, is provided with an exhaust gas inlet, the top of the air inlet box is provided with a desorption exhaust interface, the exhaust gas inlet is communicated with an adsorption area air inlet on the molecular sieve rotating wheel, and the desorption exhaust interface is connected with a heat accumulating incinerator through an exhaust pipe;
one side of the air outlet box is communicated with the side part of the rotating wheel box, a purified air outlet is formed in one side, far away from the rotating wheel box, of the air outlet box, the purified air outlet is communicated with an air outlet of an adsorption area on the molecular sieve rotating wheel, and the purified air outlet is connected with a tail gas discharge pipe.
Further, the two sides of the rotating wheel box are symmetrically provided with supporting frames, and bearing seats are respectively arranged on the two groups of supporting frames; the rotating shaft of the molecular sieve rotating wheel is rotatably arranged on the bearing seat; the interior of the molecular sieve rotating wheel is divided into a plurality of cavities by a baffle plate, wherein each cavity is internally provided with a zeolite molecular sieve respectively.
Further, a desorption exhaust air guide sleeve is arranged in the air inlet box, and a desorption exhaust interface communicated with the upper end of the desorption exhaust air guide sleeve is arranged at the top of the air inlet box.
Furthermore, one side of the desorption exhaust air guide sleeve, which is close to the rotating wheel box, is communicated with an exhaust port of a desorption area on the molecular sieve rotating wheel.
Further, a desorption air inlet guide sleeve and a cooling guide sleeve are arranged in the air outlet box, wherein the desorption air inlet guide sleeve and the cooling guide sleeve are integrally arranged; the top of the air outlet box is respectively provided with a desorption air inlet interface and a cooling air outlet interface, wherein the desorption air inlet interface is communicated with the upper end of the desorption air inlet guide sleeve, and the cooling air outlet interface is communicated with the upper end of the cooling guide sleeve.
Further, one side of the desorption air inlet guide sleeve, which is close to the rotating wheel box, is communicated with an air inlet of a desorption area on the molecular sieve rotating wheel, wherein the desorption air inlet guide sleeve is communicated with the desorption air outlet guide sleeve; and an opening is formed in one side, close to the rotating wheel box, of the cooling air guide sleeve, wherein the opening at the side part of the cooling air guide sleeve is communicated with a cooling area on the molecular sieve rotating wheel.
Further, a main fan is arranged on the tail gas discharge pipe, an air inlet of the main fan is communicated with the tail gas discharge pipe, and an air outlet of the main fan is communicated with the exhaust chimney; the exhaust pipe is provided with a desorption fan, an air inlet of the desorption fan is communicated with the exhaust pipe, and an air outlet of the desorption fan is communicated with an air inlet of the heat accumulating type incinerator.
Further, a desorption heat exchanger is arranged in the heat accumulating type incinerator; the air inlet end of the desorption heat exchanger is communicated with the cooling exhaust interface through a heat exchange air inlet pipe, and the air outlet end of the desorption heat exchanger is communicated with the desorption air inlet interface through a heat exchange air outlet pipe.
Further, the waste gas inlet is connected with a waste gas conveying pipe, wherein a filtering device is arranged on the waste gas conveying pipe.
On the other hand, the invention also provides a zeolite runner desorption method with high-efficiency adsorption, which comprises the following steps:
step S10: the filtering device filters the organic waste gas, the filtered organic waste gas is discharged into the air inlet box through the waste gas inlet, the organic waste gas in the air inlet box transversely passes through the adsorption area on the molecular sieve rotating wheel, and the organic waste gas is adsorbed and concentrated through zeolite in the adsorption area;
step S20: starting a main fan to suck the clean tail gas after adsorption and concentration in the adsorption zone into a tail gas discharge pipe through a purified gas outlet, and discharging the clean tail gas into a chimney through the tail gas discharge pipe;
step S30: after the adsorption is finished, controlling the molecular sieve rotating wheel to rotate to a desorption area, so that two sides of the desorption area are respectively communicated with a desorption air inlet guide sleeve and a desorption air exhaust guide sleeve;
step S40: the method comprises the steps of starting a heat accumulating type incinerator to heat a desorption heat exchanger, then inputting clean cooling air flow discharged from a cooling exhaust port into the desorption heat exchanger through a heat exchange air inlet pipe, heating the clean cooling air flow by the desorption heat exchanger, inputting the heated clean air flow into a desorption air inlet guide cover through a heat exchange air outlet pipe, transversely introducing the desorption air inlet guide cover into a desorption area, and carrying out high-temperature desorption on organic matters adsorbed on zeolite of a molecular sieve;
step S50: the high-concentration organic waste gas desorbed in the step S40 is discharged into a desorption exhaust guide cover, the high-concentration organic waste gas is pumped into a heat accumulating type incinerator through an exhaust pipe by a desorption fan for combustion and incineration treatment, and clean tail gas is discharged;
step S60: after desorption is completed, controlling the molecular sieve rotating wheel to rotate to a cooling area, and introducing clean tail gas discharged from a purified gas outlet into the cooling area to cool the zeolite molecular sieve;
step S70: after cooling is completed, clean cooling air flow enters the cooling air guide sleeve and is discharged into the heat exchange air inlet pipe through the cooling exhaust interface, and step S40 is repeated;
step S80: and after cooling, controlling the molecular sieve rotating wheel to rotate to an adsorption area, and repeating the step S10.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the organic waste gas is desorbed and concentrated and then is input into the heat accumulating type incinerator for combustion, and the heat released by the self combustion of the organic waste gas is used as a heat source of the desorption heat exchanger, so that the heat is provided for the desorption of the organic waste gas, and the desorption efficiency is improved; meanwhile, a part of clean tail gas discharged from the purified gas outlet is used as cooling air flow for cooling zeolite entering a cooling area on the molecular sieve rotating wheel, so that the cooled zeolite has high adsorptivity again; the desorption heat exchanger is arranged in the heat accumulating type incinerator, so that the desorption temperature condition can be fully improved, the heat required by the desorption heat exchanger for desorbing the organic waste gas can be ensured to be obtained in a sufficient desorption area, and therefore, high-boiling-point organic matters adsorbed in the molecular sieve rotating wheel can be smoothly and fully desorbed and participate in subsequent incineration treatment, the desorption efficiency and treatment effect of the organic waste gas are obviously improved, and the purposes of continuous adsorption and high-efficiency desorption of the organic waste gas are achieved.
Drawings
FIG. 1 is a schematic diagram of the front view of a zeolite rotor desorption apparatus for efficient adsorption according to the present invention;
FIG. 2 is a schematic diagram of the rear view of a zeolite rotor desorption apparatus for efficient adsorption in accordance with the present invention;
FIG. 3 is a schematic view of the structure of the wheel box of the present invention;
FIG. 4 is a schematic diagram of an assembled configuration of a rotor box and a molecular sieve rotor of the present invention;
FIG. 5 is a schematic view of the adsorption pod of the present invention;
FIG. 6 is a schematic diagram of the structure of the desorption pod and cooling pod of the present invention;
fig. 7 is a block diagram of the working principle of the present invention.
Marked in the figure as: 1. a base; 2. an air inlet box; 201. an exhaust gas inlet; 3. a wheel box; 4. an air outlet box; 401. a purge gas outlet; 5. a support frame; 6. a bearing seat; 7. a molecular sieve rotating wheel; 701. an adsorption zone; 702. a cooling zone; 703. a desorption zone; 8. a rotating shaft; 9. desorbing the exhaust air guide sleeve; 10. a desorption exhaust port; 11. desorbing the air inlet guide sleeve; 12. cooling the air guide sleeve; 13. a desorption air inlet port; 14. cooling the exhaust interface; 15. an exhaust gas delivery pipe; 16. a filtering device; 1601. a primary filter layer; 1602. a high-efficiency filter layer; 1603. an activated carbon filter layer; 17. a tail gas discharge pipe; 18. a main fan; 19. an exhaust pipe; 20. a heat accumulating incinerator; 21. a desorption fan; 22. a desorption heat exchanger; 23. a heat exchange air inlet pipe; 24. a heat exchange air outlet pipe; 25. a box door.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
Referring to fig. 1 to 7 in combination, a zeolite runner desorption device with efficient adsorption comprises a base 1, and is characterized in that an air inlet box 2, a runner box 3 and an air outlet box 4 are fixedly installed on the base 1, wherein the air inlet box 2 and the air outlet box 4 are respectively arranged at two sides of the runner box 3; the two sides of the rotating wheel box 3 are symmetrically provided with supporting frames 5, wherein bearing seats 6 are respectively arranged on the two groups of supporting frames 5; a molecular sieve rotating wheel 7 is arranged in the rotating wheel box 3, wherein a rotating shaft 8 of the molecular sieve rotating wheel 7 is rotatably arranged on the bearing seat 6; the interior of the molecular sieve rotating wheel 7 is divided into a plurality of cavities by a partition board, wherein each cavity is internally provided with a zeolite molecular sieve respectively; the molecular sieve rotating wheel 7 is provided with an adsorption zone 701, a cooling zone 702 and a desorption zone 703; a driving motor (not shown) for driving the molecular sieve rotating wheel 7 to rotate is arranged at the bottom of the inner cavity of the rotating wheel box 3, wherein the driving motor drives the molecular sieve rotating wheel 7 to rotate on the bearing seat 6 through a chain, and the rotating speed of the molecular sieve rotating wheel 7 is 2-8 r/h according to desorption requirements, so that the treatment efficiency of waste gas is ensured; one side of the air inlet box 2 is communicated with the side part of the rotating wheel box 3, wherein an exhaust air inlet 201 is formed in one side of the air inlet box 2 away from the rotating wheel box 3, and the exhaust air inlet 201 is communicated with an air inlet of an adsorption area 701 on the molecular sieve rotating wheel 7; a desorption exhaust guide cover 9 is arranged in the air inlet box 2, wherein a desorption exhaust interface 10 communicated with the upper end of the desorption exhaust guide cover 9 is arranged at the top of the air inlet box 2; one side of the air outlet box 4 is communicated with the side part of the rotating wheel box 3, wherein a purified air outlet 401 is formed in one side of the air outlet box 4 far away from the rotating wheel box 3, and the purified air outlet 401 is communicated with an exhaust port of an adsorption area 701 on the molecular sieve rotating wheel 7; a desorption air inlet guide sleeve 11 and a cooling guide sleeve 12 are arranged in the air outlet box 4, wherein the desorption air inlet guide sleeve 11 and the cooling guide sleeve 12 are integrally arranged; the top of the air outlet box 4 is respectively provided with a desorption air inlet interface 13 and a cooling air outlet interface 14, wherein the desorption air inlet interface 13 is communicated with the upper end of the desorption air inlet guide cover 11, and the cooling air outlet interface 14 is communicated with the upper end of the cooling guide cover 12.
Referring to fig. 1 to fig. 7, as an embodiment of the present invention, a side of the desorption exhaust guide cover 9, which is close to the rotor case 3, is communicated with an exhaust port of a desorption area 703 on the molecular sieve rotor 7; and one side of the desorption air inlet guide sleeve 11, which is close to the rotating wheel box 3, is communicated with an air inlet of a desorption area 703 on the molecular sieve rotating wheel 7, wherein the desorption air inlet guide sleeve 11 is communicated with the desorption air exhaust guide sleeve 9.
In the above-mentioned scheme, the desorption air inlet guide cover 11 is communicated with the heat exchange air outlet pipe 24 through the desorption air inlet interface 13, wherein the heat exchange air outlet pipe 24 is used for inputting high-temperature clean air flow into the desorption air inlet guide cover 11, and introducing the high-temperature clean air flow into the desorption area 703 transversely through the desorption air inlet guide cover 11 to carry out high-temperature desorption on the organic matters adsorbed on the zeolite of the molecular sieve; the desorbed high-concentration organic waste gas is directly discharged into a desorption exhaust air guide cover 9 communicated with a desorption air inlet air guide cover 11, and is pumped into a heat accumulating type incinerator 20 for combustion and incineration treatment by an exhaust pipe 19 through a desorption fan 21, so that clean tail gas is discharged.
Referring to fig. 1, 2 and 5, as an embodiment of the present invention, an opening is provided on a side of the cooling air guide sleeve 12 near the rotor case 3, wherein the opening on the side of the cooling air guide sleeve 12 is communicated with the cooling area 702 on the molecular sieve rotor 7.
In the above-mentioned scheme, the cooling air guide sleeve 12 is communicated with the heat exchange air inlet pipe 23 through the cooling air outlet 14, and a part of clean tail gas discharged from the purified air outlet 401 is used as cooling air flow to cool zeolite entering the cooling zone 702 on the molecular sieve rotating wheel 7, so that the zeolite has high adsorptivity after being cooled; after cooling, clean cooling air flow enters the cooling air guide sleeve 12 and is discharged into the heat exchange air inlet pipe 23 through the cooling exhaust interface 14, the heat exchange air inlet pipe 23 inputs the clean cooling air flow into the desorption heat exchanger 22 for heating, the heated clean air flow is input into the desorption air guide sleeve 11 through the heat exchange air outlet pipe 24, and the desorption air guide sleeve 11 is transversely introduced into the desorption area 703 to carry out high-temperature desorption on organic matters adsorbed on molecular sieve zeolite.
Referring to fig. 1 and 7 in combination, as an embodiment of the present invention, an exhaust gas inlet 201 is connected to an exhaust gas delivery pipe 15, wherein the exhaust gas delivery pipe 15 is in communication with an organic exhaust gas source; the exhaust gas duct 15 is provided with a filter device 16, wherein the filter device 16 is used for primarily filtering the organic exhaust gas.
In the above-described scheme, the primary filter layer 1601, the high-efficiency filter layer 1602, and the activated carbon filter layer 1603 are installed in the filter device 16 in order along the air flow direction; the primary filter layer 1601 and the high-efficiency filter layer 1602 are mainly used for filtering dust and particulate matters, the activated carbon filter layer 1603 is mainly used for filtering out high boiling point matters, the safety of a molecular sieve rotating wheel is ensured, and the low desorption efficiency caused by the pollution of zeolite by the high boiling point matters can be improved.
Referring to fig. 2 and fig. 7 in combination, as an embodiment of the present invention, the purified gas outlet 401 is connected to a tail gas exhaust pipe 17, where the tail gas exhaust pipe 17 is provided with a main fan 18; the air inlet of the main fan 18 is communicated with the tail gas discharge pipe 17, and the air outlet of the main fan 18 is communicated with the exhaust chimney.
In the above-mentioned scheme, the filtering device 16 is configured to perform preliminary filtration on the organic waste gas, and input the filtered organic waste gas into the adsorption dome 9 through the waste gas conveying pipe 15, where the filtered organic waste gas is discharged into the air inlet box 2 through the waste gas inlet 201, and the organic waste gas in the air inlet box 2 transversely passes through the adsorption area 701 on the molecular sieve rotating wheel 7, and performs adsorption concentration treatment on the organic waste gas through zeolite in the adsorption area 701; the main fan 18 on the tail gas discharge pipe 17 is started, the main fan 18 runs, so that negative pressure is generated in the tail gas discharge pipe 17, and clean tail gas after zeolite adsorption concentration in the molecular sieve rotating wheel 7 is pumped into an exhaust chimney through the main fan 18 for discharge.
Referring to fig. 1 to 7 in combination, as an embodiment of the present invention, the desorption exhaust port 10 is connected to a thermal storage incinerator 20 through an exhaust pipe 19, wherein a desorption fan 21 is disposed on the exhaust pipe 19; the air inlet of the desorption fan 21 is communicated with the exhaust pipe 19, wherein the air outlet of the desorption fan 21 is communicated with the air inlet of the heat accumulating type incinerator 20; a desorption heat exchanger 22 is arranged in the heat accumulating type incinerator 20; the air inlet end of the desorption heat exchanger 22 is communicated with the cooling exhaust port 14 through a heat exchange air inlet pipe 23, and the air outlet end of the desorption heat exchanger 22 is communicated with the desorption air inlet port 13 through a heat exchange air outlet pipe 24.
In the above-mentioned scheme, the organic waste gas is desorbed and concentrated and then is input into the heat accumulating type incinerator 20 for combustion, the heat released by the self-combustion of the organic waste gas is used as the heat source of the desorption heat exchanger 22, the temperature is controlled within 180-220 ℃ through the desorption heat exchanger 22, the most suitable heat is provided for the desorption of the organic waste gas, and the desorption efficiency is improved; the part of clean tail gas discharged from the purified gas outlet is used as cooling air flow for cooling zeolite entering a cooling area on the molecular sieve rotating wheel, so that the cooled zeolite has high adsorptivity again; after cooling is finished, clean cooling air flow enters the cooling air guide sleeve 12 and is discharged into the heat exchange air inlet pipe 23 through the cooling exhaust interface 14, the heat exchange air inlet pipe 23 inputs the clean cooling air flow into the desorption heat exchanger 22 for heating, the heated clean air flow is input into the desorption air inlet air guide sleeve 11 through the heat exchange air outlet pipe 24, and the desorption air inlet air guide sleeve 11 is transversely led into the desorption area 703 to carry out high-temperature desorption on organic matters adsorbed on molecular sieve zeolite; the desorbed high-concentration organic waste gas is directly discharged into the desorption exhaust guide cover 9, is pumped into the heat accumulating type incinerator 20 for combustion and incineration treatment through the desorption fan 21 by the exhaust pipe 19, and is discharged to the outside to clean tail gas; by taking a part of clean tail gas discharged from the purified gas outlet 401 as cooling air flow, the zeolite entering the cooling zone 702 on the molecular sieve rotating wheel 7 is cooled, so that the zeolite has high adsorptivity again after being cooled; after cooling, clean cooling air flow enters the cooling air guide sleeve 12 and is discharged into the heat exchange air inlet pipe 23 through the cooling exhaust interface 14, the heat exchange air inlet pipe 23 inputs the clean cooling air flow into the desorption heat exchanger 22 for heating, the heated clean air flow is input into the desorption air guide sleeve 11 through the heat exchange air outlet pipe 24, and the desorption air guide sleeve 11 is transversely introduced into the desorption area 703 to carry out high-temperature desorption on organic matters adsorbed on molecular sieve zeolite.
Referring to fig. 1 and 2 in combination, as an embodiment of the present invention, the side walls of the air inlet box 2, the air outlet box 4 and the runner box 3 are respectively provided with a box door 25.
In the above scheme, through the lateral wall installation chamber door 25 at inlet box 2, outlet box 4 and runner case 3, the maintenance personnel of being convenient for can get into the box internal operation.
The zeolite runner desorption method with high-efficiency adsorption specifically comprises the following steps:
step S10: the filtering device 16 filters the organic waste gas, the filtered organic waste gas is discharged into the air inlet box 2 through the waste gas inlet 201, the organic waste gas in the air inlet box 2 transversely passes through the adsorption area 701 on the molecular sieve rotating wheel 7, and the organic waste gas is subjected to adsorption concentration treatment through zeolite in the adsorption area 701;
step S20: the main fan 18 is started to suck the clean tail gas after adsorption and concentration in the adsorption zone 701 into the tail gas discharge pipe 17 through the clean gas outlet 401, and the clean tail gas is discharged into a chimney through the tail gas discharge pipe 17;
step S30: after the adsorption is finished, controlling the molecular sieve rotating wheel 7 to rotate to a desorption area 703, so that two sides of the desorption area 703 are respectively communicated with a desorption air inlet guide sleeve 11 and a desorption air exhaust guide sleeve 9;
step S40: opening a heat accumulating type incinerator 20 to heat a desorption heat exchanger 22, then inputting clean cooling air flow discharged from a cooling exhaust port 14 into the desorption heat exchanger 22 through a heat exchange air inlet pipe 23, heating the clean cooling air flow by the desorption heat exchanger 22, inputting the heated clean air flow into a desorption air inlet guide cover 11 through a heat exchange air outlet pipe 24, and transversely introducing the desorption air inlet guide cover 11 into a desorption area 703 to carry out high-temperature desorption on organic matters adsorbed on molecular sieve zeolite;
step S40: the high-concentration organic waste gas desorbed in the step S30 is discharged into the desorption exhaust guide cover 9, and is pumped into the heat accumulating type incinerator 20 for combustion and incineration treatment through the desorption fan 21 by the exhaust pipe 19, and clean tail gas is discharged;
step S50: after the desorption is finished, controlling the molecular sieve rotating wheel 7 to rotate to a cooling zone 702, and introducing clean tail gas discharged from the purified gas outlet 401 into the cooling zone 702 to cool the zeolite molecular sieve;
step S60: after cooling is completed, clean cooling air flow enters the cooling air guide sleeve 12 and is discharged into the heat exchange air inlet pipe 23 through the cooling exhaust interface 14, and the step S40 is repeated;
step S70: after the cooling is completed, the molecular sieve rotating wheel 7 is controlled to rotate to the adsorption area 701, and the step S10 is repeated.
To sum up: according to the invention, the organic waste gas is desorbed and concentrated and then is input into the heat accumulating type incinerator 20 for combustion, and the heat released by the self combustion of the organic waste gas is used as a heat source of the desorption heat exchanger 22, so that the heat is provided for the desorption of the organic waste gas, and the desorption efficiency is improved; meanwhile, a part of clean tail gas discharged from the purified gas outlet 401 is used as cooling air flow for cooling zeolite entering the cooling zone 702 on the molecular sieve rotating wheel 7, so that the zeolite has high adsorptivity after being cooled; the desorption heat exchanger 22 is arranged in the heat accumulating type incinerator 20, so that the desorption temperature condition can be fully improved, and the heat required by the desorption heat exchanger 22 for desorbing the organic waste gas can be ensured to be obtained in a sufficient desorption area 703, so that the high-boiling-point organic matters adsorbed in the molecular sieve rotating wheel 7 can be smoothly and fully desorbed and participate in subsequent incineration treatment, the desorption efficiency and the treatment effect of the organic waste gas are obviously improved, and the purposes of continuous adsorption and high-efficiency desorption of the organic waste gas are achieved.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by equivalent substitution and the like fall within the scope of the present invention. The invention is not related in part to the same as or can be practiced with the prior art.
Claims (10)
1. The zeolite runner desorption device with high-efficiency adsorption comprises a base (1), wherein an air inlet box (2), a runner box (3) and an air outlet box (4) are fixedly arranged on the base (1), the air inlet box (2) and the air outlet box (4) are respectively arranged on two sides of the runner box (3), a molecular sieve runner (7) is arranged in the runner box (3), and the molecular sieve runner (7) is provided with an adsorption zone (701), a cooling zone (702) and a desorption zone (703); the device is characterized in that one side of the air inlet box (2) is communicated with the side part of the rotating wheel box (3), wherein an exhaust gas inlet (201) is formed in one side, far away from the rotating wheel box (3), of the air inlet box (2), a desorption exhaust interface (10) is formed in the top of the air inlet box (2), the exhaust gas inlet (201) is communicated with an air inlet of an adsorption area (701) on the molecular sieve rotating wheel (7), and the desorption exhaust interface (10) is connected with a heat accumulating incinerator (20) through an exhaust pipe (19);
one side of the air outlet box (4) is communicated with the side part of the rotating wheel box (3), wherein one side of the air outlet box (4) far away from the rotating wheel box (3) is provided with a purified air outlet (401), the purified air outlet (401) is communicated with an air outlet of an adsorption zone (701) on the molecular sieve rotating wheel (7), and the purified air outlet (401) is connected with a tail gas discharge pipe (17).
2. The zeolite runner desorption device with high-efficiency adsorption according to claim 1, wherein the two sides of the runner box (3) are symmetrically provided with supporting frames (5), and bearing seats (6) are respectively arranged on the two groups of supporting frames (5); a rotating shaft (8) of the molecular sieve rotating wheel (7) is rotatably arranged on the bearing seat (6); the interior of the molecular sieve rotating wheel (7) is divided into a plurality of cavities by a partition board, wherein each cavity is internally provided with a zeolite molecular sieve respectively.
3. The zeolite runner desorption device of claim 1, wherein a desorption exhaust guide cover (9) is installed in the air inlet box (2), and a desorption exhaust interface (10) communicated with the upper end of the desorption exhaust guide cover (9) is formed at the top of the air inlet box (2).
4. A zeolite rotor desorption apparatus for efficient adsorption according to claim 3 wherein the side of the desorption exhaust guide cover (9) adjacent to the rotor box (3) is in communication with the exhaust port of the desorption zone (703) on the molecular sieve rotor (7).
5. The zeolite runner desorption device with high-efficiency adsorption according to claim 1, wherein a desorption air inlet guide cover (11) and a cooling guide cover (12) are arranged in the air outlet box (4), and the desorption air inlet guide cover (11) and the cooling guide cover (12) are integrally arranged; the top of the air outlet box (4) is respectively provided with a desorption air inlet interface (13) and a cooling air outlet interface (14), wherein the desorption air inlet interface (13) is communicated with the upper end of the desorption air inlet guide sleeve (11), and the cooling air outlet interface (14) is communicated with the upper end of the cooling guide sleeve (12).
6. The zeolite runner desorption device for efficient adsorption according to claim 5, wherein one side of the desorption air inlet guide sleeve (11) close to the runner box (3) is communicated with an air inlet of a desorption area (703) on the molecular sieve runner (7), and the desorption air inlet guide sleeve (11) is communicated with the desorption air outlet guide sleeve (9); an opening is formed in one side, close to the rotating wheel box (3), of the cooling air guide sleeve (12), and the opening in the side of the cooling air guide sleeve (12) is communicated with a cooling zone (702) on the molecular sieve rotating wheel (7).
7. The zeolite rotating wheel desorption device for efficient adsorption according to claim 1, wherein a main fan (18) is arranged on the tail gas discharge pipe (17), an air inlet of the main fan (18) is communicated with the tail gas discharge pipe (17), and an air outlet of the main fan (18) is communicated with an exhaust chimney; the exhaust pipe (19) is provided with a desorption fan (21), an air inlet of the desorption fan (21) is communicated with the exhaust pipe (19), and an air outlet of the desorption fan (21) is communicated with an air inlet of the heat accumulating type incinerator (20).
8. The zeolite runner desorption device with high-efficiency adsorption according to claim 1, wherein a desorption heat exchanger (22) is arranged in the heat accumulating type incinerator (20); the air inlet end of the desorption heat exchanger (22) is communicated with the cooling exhaust interface (14) through a heat exchange air inlet pipe (23), and the air outlet end of the desorption heat exchanger (22) is communicated with the desorption air inlet interface (13) through a heat exchange air outlet pipe (24).
9. A zeolite rotor desorption apparatus for efficient adsorption according to claim 1, wherein the exhaust gas inlet (201) is connected with an exhaust gas delivery pipe (15), and wherein the exhaust gas delivery pipe (15) is provided with a filter device (16).
10. A zeolite rotor desorption method for high efficiency adsorption according to any one of claims 1 to 9, comprising the steps of:
step S10: the filtering device (16) filters the organic waste gas, the filtered organic waste gas is discharged into the air inlet box (2) through the waste gas inlet (201), the organic waste gas in the air inlet box (2) transversely passes through the adsorption area (701) on the molecular sieve rotating wheel (7), and the organic waste gas is adsorbed and concentrated through zeolite in the adsorption area (701);
step S20: starting a main fan (18) to suck the clean tail gas after adsorption and concentration in the adsorption zone (701) into a tail gas discharge pipe (17) through a purified gas outlet (401), and discharging the clean tail gas into a chimney through the tail gas discharge pipe (17);
step S30: after the adsorption is finished, controlling the molecular sieve rotating wheel (7) to rotate to a desorption area (703), so that two sides of the desorption area (703) are respectively communicated with a desorption air inlet guide sleeve (11) and a desorption air exhaust guide sleeve (9);
step S40: starting a heat accumulating type incinerator (20) to heat a desorption heat exchanger (22), then inputting clean cooling air flow discharged from a cooling exhaust port (14) into the desorption heat exchanger (22) through a heat exchange air inlet pipe (23), heating the clean cooling air flow by the desorption heat exchanger (22), inputting the heated clean air flow into a desorption air inlet guide cover (11) through a heat exchange air outlet pipe (24), transversely introducing the desorption air inlet guide cover (11) into a desorption area (703), and carrying out high-temperature desorption on organic matters adsorbed on zeolite of a molecular sieve;
step S50: the high-concentration organic waste gas desorbed in the step S40 is discharged into a desorption exhaust guide cover (9), is pumped into a heat accumulating type incinerator (20) through an exhaust pipe (19) by a desorption fan (21) for combustion incineration treatment, and is discharged into clean tail gas;
step S60: after desorption is completed, controlling the molecular sieve rotating wheel (7) to rotate to a cooling zone (702), and introducing clean tail gas discharged from the purified gas outlet (401) into the cooling zone (702) to cool the zeolite molecular sieve;
step S70: after cooling is finished, clean cooling air flow enters the cooling air guide sleeve (12) and is discharged into the heat exchange air inlet pipe (23) through the cooling exhaust interface (14), and the step S40 is repeated;
step S80: after cooling is completed, the molecular sieve rotating wheel (7) is controlled to rotate to an adsorption area (701), and the step S10 is repeated.
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| CN202310623144.1A CN116571057A (en) | 2023-05-30 | 2023-05-30 | High-efficiency adsorption zeolite rotating wheel desorption device and method |
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| CN202310623144.1A CN116571057A (en) | 2023-05-30 | 2023-05-30 | High-efficiency adsorption zeolite rotating wheel desorption device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119075598A (en) * | 2024-11-06 | 2024-12-06 | 福建玮士迈科技有限公司 | A VOC gas treatment device based on gas concentration and use method |
| CN119158380A (en) * | 2024-11-13 | 2024-12-20 | 江苏诺蓝环保科技有限公司 | A zeolite rotor plus RTO equipment |
| WO2025086444A1 (en) * | 2023-10-26 | 2025-05-01 | 深圳洛克创新科技有限公司 | Fluid treatment apparatus, freshness preservation device, and control method |
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- 2023-05-30 CN CN202310623144.1A patent/CN116571057A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025086444A1 (en) * | 2023-10-26 | 2025-05-01 | 深圳洛克创新科技有限公司 | Fluid treatment apparatus, freshness preservation device, and control method |
| CN119075598A (en) * | 2024-11-06 | 2024-12-06 | 福建玮士迈科技有限公司 | A VOC gas treatment device based on gas concentration and use method |
| CN119158380A (en) * | 2024-11-13 | 2024-12-20 | 江苏诺蓝环保科技有限公司 | A zeolite rotor plus RTO equipment |
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