CN111810973A - Organic waste gas catalytic combustion device - Google Patents
Organic waste gas catalytic combustion device Download PDFInfo
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- CN111810973A CN111810973A CN202010557340.XA CN202010557340A CN111810973A CN 111810973 A CN111810973 A CN 111810973A CN 202010557340 A CN202010557340 A CN 202010557340A CN 111810973 A CN111810973 A CN 111810973A
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- 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
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
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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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- 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
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention provides an organic waste gas catalytic combustion device, which comprises a pretreatment device, a zeolite concentration rotating wheel, a heat exchanger, a catalytic chamber, a combustion chamber, a combustor, a desorption fan, an adsorption fan, an exhaust pipe, a connecting pipe, a waste gas inlet, a maintenance door, a cover and a base, wherein the zeolite concentration rotating wheel is arranged on the base; the pretreatment device and the zeolite concentration rotating wheel are sequentially arranged in the cover from left to right, the upper part of the back surface of the zeolite concentration rotating wheel is connected with the heat exchanger, the lower part of the back surface of the zeolite concentration rotating wheel is provided with an adsorption fan and a desorption fan, the adsorption fan is provided with an exhaust port, and the exhaust port is connected with the exhaust pipe; and a catalytic chamber, a combustion chamber and a combustor are sequentially arranged on the outer right side of the cover. The invention has the beneficial effects that: firstly, the catalytic combustion can be carried out on the organic waste gas with large air volume and low concentration, and the catalytic combustion method is suitable for various industrial occasions; secondly, the heat generated by the combustion of the organic waste gas can be reused; thirdly, a pretreatment filtering device is arranged; fourth, automatic manipulation can be realized.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of organic waste gas treatment, in particular to an organic waste gas catalytic combustion device.
[ background of the invention ]
The air pollution problem is serious at present, wherein the emission of organic waste gas is one of important sources, so that the catalytic combustion of the organic waste gas is an important treatment means for solving the air pollution problem at present. VOCs (volatile organic compounds) are short for volatile organic compounds, and one of organic waste gases as a precursor for ozone generation, which are organic compounds having a saturated vapor pressure of more than 70Pa at normal temperature and a boiling point of 260 ℃ or less at normal pressure, and are generally classified into non-methane hydrocarbons (NMHCs), oxygen-containing organic compounds, halogenated hydrocarbons, nitrogen-containing organic compounds, sulfur-containing organic compounds, and the like. VOCs participate in the formation of ozone and secondary aerosols in the atmospheric environment, which have important effects on regional atmospheric ozone pollution and PM2.5 pollution. Most VOCs have unpleasant odor and are toxic, irritating, teratogenic and carcinogenic. Meanwhile, VOCs are also important precursors causing urban dust haze and photochemical smog and mainly come from the processes of coal chemical industry, petrochemical industry, fuel coating manufacturing, solvent using and the like.
At present, the direct catalytic combustion device for organic waste gases such as VOCs mainly utilizes a catalyst to reduce the activation energy of a combustion object participating in a reaction so as to achieve the purposes of directly combusting organic matters and purifying air under a lower condition, but the device is only suitable for treating organic waste gases with higher concentration and continuous discharge, and a combustion improver is required to be added for the organic waste gases with lower concentration; in addition, the device has low treatment efficiency, large occupied area, not wide application range, high required ignition temperature and incapability of realizing automatic control, and generally is not provided with a pretreatment device capable of efficiently filtering dust and particles, so that the heat generated by the combustion of organic waste gas cannot be fully utilized.
[ summary of the invention ]
The invention aims to improve the following problems existing in the prior organic waste gas treatment device: large air quantity and low concentration organic waste gas can not be efficiently catalytically combusted; organic waste gas generated intermittently cannot be treated; the heat generated by the combustion of the organic waste gas cannot be reused; automatic control cannot be realized; are not suitable for use in a variety of industrial environments; the occupied space is too large; and provides an organic waste gas catalytic combustion device which organically combines an adsorption concentration unit and a thermal oxidation unit.
The invention is realized by the following technical scheme: the device comprises a pretreatment device, a zeolite concentration rotating wheel, a heat exchanger, a catalytic chamber, a combustion chamber, a combustor, a desorption fan, an adsorption fan, an exhaust pipe, a connecting pipe, an exhaust gas inlet, a maintenance door, a cover cap and a base; the cover cap is square, the fixed cover cap is connected to the base in a covering mode, the left end face of the cover cap is provided with an exhaust gas inlet, and the front face of the cover cap is provided with a plurality of maintenance doors; the pretreatment device and the zeolite concentration rotating wheel are sequentially arranged in the cover from left to right, the upper part of the back surface of the zeolite concentration rotating wheel is connected with the heat exchanger, the lower part of the back surface of the zeolite concentration rotating wheel is provided with an adsorption fan and a desorption fan, the adsorption fan is provided with an exhaust port, the exhaust port is connected with the exhaust pipe, and the desorption fan is connected in front of the adsorption fan; a catalytic chamber, a combustion chamber and a combustor are sequentially arranged on the outer right side of the cover; the connecting pipe is communicated with the heat exchanger, the catalytic chamber, the combustor, the combustion chamber, the desorption fan and the exhaust pipe.
Further, the connecting pipes comprise a first connecting pipe, a second connecting pipe, a third connecting pipe, a fourth connecting pipe, a fifth connecting pipe and a sixth connecting pipe; one end of the first connecting pipe is communicated with the heat exchanger, the other end of the first connecting pipe is communicated with the catalytic chamber, and high-concentration organic waste gas obtained by desorption from the zeolite concentration rotating wheel can be sent to the catalytic chamber; one end of the second connecting pipe is communicated with the catalytic chamber, the other end of the second connecting pipe is communicated with the combustion chamber, and organic waste gas catalyzed in the catalytic chamber can be sent to the combustion chamber; the third connecting pipe passes through the combustor, and two ends of the third connecting pipe are both connected with the combustion chamber, so that the organic waste gas can be combusted in the combustion chamber through the combustor; one end of the fourth connecting pipe is communicated with the combustion chamber, the other end of the fourth connecting pipe is communicated with the desorption fan, so that high temperature generated after organic waste gas is combusted can be realizedGaseous CO2And H2O reaches the desorption fan; one end of the fifth connecting pipe is communicated with the desorption fan, the other end of the fifth connecting pipe is communicated with the heat exchanger, and high-temperature gas CO can be generated2And H2The O enters the heat exchanger for heat exchange; one end of the sixth connecting pipe is communicated with the heat exchanger, the other end of the sixth connecting pipe is communicated with the exhaust pipe, so that CO subjected to heat exchange can be used2And H2And O is discharged from the exhaust pipe.
Further, the pretreatment device comprises a primary filter, a medium-efficiency filter and a high-efficiency filter; the primary filter and the intermediate filter are connected together and are arranged at the left end in the cover cap, and the high-efficiency filter is arranged behind the primary filter; the primary filter is a folding primary filter and comprises a filter material and a support grid, wherein the filter material is made by folding pure white cotton, the filter material is fixedly connected to the support grid, the support grid can prevent the filter from shrinking or bending deformation under extremely poor working environment, the primary filter is used for filtering dust particles with the particle size of more than 5 mu m, and the removal efficiency can reach more than 95%; the middle-effect filter is of a bag-type structure, an opening part of the bag-type structure is fixedly connected to the upper surface of a support grid of the primary-effect filter and wraps filter materials of the primary-effect filter, the middle-effect filter is of a unique bag-type structure, so that organic waste gas is ensured to be uniformly filled in the whole bag, and the filtering efficiency of particles larger than or equal to 1.0 mu m can reach 65%; the high-efficiency filter comprises filter paper, spaced aluminum plates and an outer frame, the spaced aluminum plates are arranged at equal intervals and connected in the outer frame, the filter paper covers the spaced aluminum plates, the outer frame is made of aluminum alloy sections, the filter paper is made of polypropylene filter paper, the periphery of the filter paper is connected with the outer frame and sealed by environment-friendly polyurethane sealant, and the filtering efficiency of the high-efficiency filter on particles larger than or equal to 0.5 mu m can reach 99.5%.
Furthermore, the zeolite concentration rotating wheel is arranged behind the high-efficiency filter, the zeolite concentration rotating wheel takes ceramic fibers as a base material and is manufactured into a honeycomb-shaped disc wheel-shaped structure, hydrophobic zeolite is coated on the surface of the zeolite concentration rotating wheel to serve as an adsorbent, and the zeolite can absorb Volatile Organic Compounds (VOCs) in organic waste gas; the zeolite concentration rotating wheel is divided into three sector areas, namely an adsorption area, a desorption area and a cooling area, wherein the adsorption area is at normal temperature and can adsorb Volatile Organic Compounds (VOCs), the desorption area is heated by high-temperature gas heated by a heat exchanger, so that the VOCs adsorbed on the desorption area originally overflow to enter a catalytic combustion stage, and the cooling area is used for slowly cooling zeolite rotating from the desorption area; an adsorption fan is arranged below the back of the zeolite concentration rotating wheel, an air suction port is arranged at the position, opposite to the adsorption zone, of the adsorption fan, and the air suction port can suck residual air after organic waste gas is adsorbed into the adsorption fan; the adsorption fan is also provided with an exhaust port which is connected with the exhaust pipe, the exhaust pipe extends upwards out of the cover cap, and air entering the adsorption fan is exhausted to the atmosphere through the exhaust pipe; the adsorption fan dead ahead is connected with the desorption fan, the desorption fan is equipped with air inlet, blow vent, the air inlet with the fourth connecting pipe intercommunication, the blow vent with fifth connecting pipe intercommunication.
Further, the heat exchanger is a full-welded plate heat exchanger and is connected above the back of the zeolite concentration rotating wheel, and the heat exchanger is provided with a low-temperature gas inlet, a high-temperature gas inlet, a hot gas outlet, an exhaust outlet and a gas supply port; the low-temperature gas inlet is positioned at the back of the cooling area and can absorb air from the cooling area; the high-temperature gas inlet is communicated with the fifth connecting pipe and can be used for generating high-temperature gas CO after catalytic combustion of the organic waste gas2And H2O suction heat exchanger; the hot gas outlet is positioned on the back of the desorption area, so that high-temperature air subjected to heat exchange can be discharged to the desorption area to heat the desorption area; the exhaust outlet is communicated with the sixth connecting pipe, and CO subjected to heat exchange can be discharged2And H2Feeding the O into an exhaust pipe; the air supply port is communicated with the first connecting pipe and can absorb high-concentration organic waste gas desorbed from the desorption area.
Furthermore, a catalyst plated on a honeycomb ceramic carrier by noble metals such as palladium and platinum is arranged in the catalytic chamber, the honeycomb ceramic carrier is in a square shape, the outer surface of the honeycomb ceramic carrier is in a honeycomb shape, and the catalyst is coated on the outer surface of the honeycomb ceramic carrier; the top surface of the catalytic chamber is communicated with the first connecting pipe, and the upper side of the right end surface of the catalytic chamber is communicated with the second connecting pipe.
Further, the combustor is communicated with the combustion chamber through the third connecting pipe, and comprises an air supply system, an ignition system, a monitoring system, a fuel system and an electric control system; the air supply system is provided with an air pump and can suck air into the combustor; the ignition system is provided with a high-temperature ignition device and can generate the temperature required by the combustion of the organic waste gas; the monitoring system is provided with a temperature sensor and a pressure sensor and can monitor the temperature and the pressure in the combustion chamber; the fuel system stores combustion improver which can provide fuel when being ignited for the first time; the electric control system is provided with a PLC automatic control module, and is electrically connected with the ignition system, the monitoring system, the air supply system and the fuel system, so that automatic control can be realized.
Furthermore, a fire-retardant dust remover, a pressure relief opening and an over-temperature alarm device are arranged in the combustion chamber, and the over-temperature alarm device is in signal connection with the combustor.
Furthermore, the cover cap is made of an aluminum surface galvanized material, so that the cover cap has attractive appearance, good sealing performance and corrosion resistance, the service life of the aluminum-plated aluminum-.
According to the catalytic combustion device for organic waste gas, the combustion improver stored in the fuel system is ignited by the combustor to generate high-temperature gas CO2And H2O, high temperature gas CO2And H2O reaches the desorption area through the connecting pipe to heat the desorption area of the zeolite concentration rotating wheel; organic waste gas enters from the waste gas inlet and reaches the zeolite concentration rotating wheel through the pretreatment device, Volatile Organic Compounds (VOCs) in the organic waste gas are absorbed by the zeolite concentration rotating wheel, and residual air after absorption is absorbed and enters the adsorption fan and then is discharged through an exhaust pipe connected to the adsorption fan; the desorption zone zeolite is treated by high-temperature gas CO2And H2The volatile organic compounds VOCs absorbed on the O are heated and overflowed after the O is heated to formHigh-concentration organic waste gas sequentially reaches the catalytic chamber and the combustion chamber through the connecting pipe for catalytic combustion; high-temperature gas CO generated after combustion2And H2And the O reaches the heat exchanger through a connecting pipe, exchanges heat with the air fed in by the cooling area, and is discharged through the exhaust pipe after heat exchange.
The invention has the beneficial effects that: firstly, the high-efficiency stable catalytic combustion treatment can be carried out on the organic waste gas with large air volume and low concentration, and the method can be suitable for occasions for intermittently treating the waste gas; secondly, the heat generated by the combustion of the organic waste gas can be reused; thirdly, a pretreatment filtering device for removing dust and particulate matters is arranged, so that the device is suitable for various industrial environments; fourthly, automatic control can be realized through an electric control system of the burner.
[ description of the drawings ]
FIG. 1 is a schematic structural view of an organic waste gas catalytic combustion apparatus according to the present invention;
FIG. 2 is a schematic diagram illustrating the operation of the catalytic combustion apparatus for organic waste gas according to the present invention;
FIG. 3 is a schematic structural view of a zeolite concentrator wheel according to the present invention;
FIG. 4 is a schematic structural view of a heat exchanger according to the present invention;
FIG. 5 is a schematic diagram of a high efficiency filter according to the present invention;
reference numerals: 1. a pretreatment device; 011. a primary filter; 0111. a filter material; 0112. a support grid; 012. a medium-efficiency filter; 013. a high efficiency filter; 0131. filtering paper; 0132. spacing aluminum plates; 0133. an outer frame; 2. a zeolite concentration wheel; 21. an adsorption zone; 22. a desorption zone; 23. a cooling zone; 3. a heat exchanger; 31. a low temperature gas inlet; 32. a high temperature gas inlet; 33. a hot gas outlet; 34. an exhaust outlet; 35. an air supply port; 4. a catalyst chamber; 5. a combustion chamber; 6. a burner; 7. a desorption fan; 71. an air inlet; 72. a vent; 8. an adsorption fan; 81. an air suction port; 82. an exhaust port; 9. an exhaust pipe; 10. a connecting pipe; 101. a first connecting pipe; 102. a second connecting pipe; 103. a third connecting pipe; 104. a fourth connecting pipe; 105. a fifth connecting pipe; 106. a sixth connecting pipe; 11. an exhaust gas inlet; 12. repairing the door; 13. a cover; 14. a base.
[ detailed description ] embodiments
The invention is further described with reference to the accompanying drawings and the detailed description:
as shown in fig. 1, 2, 3, 4 and 5, the catalytic combustion device for organic waste gas comprises a pretreatment device 1, a zeolite concentration runner 2, a heat exchanger 3, a catalyst chamber 4, a combustion chamber 5, a burner 6, a desorption fan 7, an adsorption fan 8, an exhaust pipe 9, a connecting pipe 10, a waste gas inlet 11, a maintenance door 12, a cover 13 and a base 14; the cover 13 is square, fixedly covered and connected to the base 14, the left end face of the cover 13 is provided with an exhaust gas inlet 11, and the front face of the cover 13 is provided with a plurality of maintenance doors 14; the pretreatment device 1 and the zeolite concentration rotating wheel 2 are sequentially arranged in the cover cap 13 from left to right, the heat exchanger 3 is connected above the back of the zeolite concentration rotating wheel 2, the adsorption fan 8 and the desorption fan 7 are arranged below the back of the zeolite concentration rotating wheel 2, an exhaust port 82 is arranged on the adsorption fan 8, the exhaust port 82 is connected with the exhaust pipe 9, and the desorption fan 7 is connected in front of the adsorption fan 8; the outer right side of the cover 13 is sequentially provided with a catalytic chamber 4, a combustion chamber 5 and a combustor 6; the connecting pipe 10 is communicated with the heat exchanger 3, the catalytic chamber 4, the combustor 5, the combustion chamber 6, the desorption fan 7 and the exhaust pipe 9.
Preferably, the connection pipe 10 includes a first connection pipe 101, a second connection pipe 102, a third connection pipe 103, a fourth connection pipe 104, a fifth connection pipe 105, and a sixth connection pipe 106; one end of the first connecting pipe 101 is communicated with the heat exchanger 3, and the other end of the first connecting pipe is communicated with the catalytic chamber 4; one end of the second connecting pipe 102 is communicated with the catalytic chamber 4, and the other end is communicated with the combustion chamber 5; the third connecting pipe 103 passes through the burner 6, and both ends of the third connecting pipe 103 are connected with the combustion chamber 5; one end of the fourth connecting pipe 104 is communicated with the combustion chamber 5, and the other end is communicated with the desorption fan 7; one end of the fifth connecting pipe 105 is communicated with the desorption fan 7, and the other end of the fifth connecting pipe is communicated with the heat exchanger 3; one end of the sixth connecting pipe 106 is communicated with the heat exchanger 3, and the other end is communicated with the exhaust pipe 9.
Preferably, the pretreatment device 1 comprises a primary filter 011, a secondary filter 012 and a high efficiency filter 013; the primary filter 011 and the medium filter 012 are connected together and are arranged at the left end in the cover cap 13, and the high efficiency filter 013 is arranged behind the primary filter 011; the primary filter 011 is a folding primary filter and comprises a filter material 0111 and a support grid 0112, wherein the filter material 0111 is made of pure white cotton in a folding mode, and the filter material 0111 is fixedly connected to the support grid 0112; the middle-effect filter 012 is of a bag-type structure, and an opening part of the bag-type structure is fixedly connected to the upper surface of the support grid of the primary filter 011 and wraps the filter material 0111 of the primary filter 011; high efficiency filter 013 includes filter paper 0131, interval aluminum plate 0132, frame 0133, interval aluminum plate 0132 equidistance is arranged and is connected in the frame 0133, filter paper 0131 covers on interval aluminum plate 0132, frame 0133 material is the aluminium alloy ex-trusions, filter paper 0131 material is polypropylene filter paper, frame 0133 department is sealed with the sealed glue of environmental protection polyurethane to filter paper 0131 peripheral connection frame 0133.
Preferably, the zeolite concentration wheel 2 is installed behind the high efficiency filter 013, the zeolite concentration wheel 2 is made into a honeycomb-shaped disc wheel-shaped structure by using ceramic fibers as a base material, hydrophobic zeolite is coated on the surface of the honeycomb-shaped disc wheel-shaped structure to serve as an adsorbent, and the zeolite concentration wheel 2 is divided into three sector areas, namely an adsorption area 21, a desorption area 22 and a cooling area 23; an adsorption fan 8 is installed below the back of the zeolite concentration rotating wheel 2, a suction port 81 is formed in the position, right facing the adsorption area 21, of the adsorption fan 8, an exhaust port 82 is further formed in the adsorption fan 8, the exhaust port 82 is connected with the exhaust pipe 9, and the exhaust pipe 9 extends out of the cover 13 upwards; the adsorption fan 8 is connected with directly in front the desorption fan 7, the desorption fan 7 is provided with an air inlet 71 and an air vent 72, the air inlet 71 is communicated with the fourth connecting pipe 104, and the air vent 72 is communicated with the fifth connecting pipe 105.
Preferably, the heat exchanger 3 is a full-welded plate heat exchanger, and is connected above the back of the zeolite concentration rotating wheel 2, and the heat exchanger 3 is provided with a low-temperature gas inlet 31, a high-temperature gas inlet 32, a hot gas outlet 33, an exhaust outlet 34 and an air supply port 35; the low-temperature gas inlet 31 is arranged on the back surface of the cooling area 23, the high-temperature gas inlet 32 is communicated with the fifth connecting pipe 105, the hot gas outlet 33 is arranged on the back surface of the desorption area 21, the exhaust outlet 34 is communicated with the sixth connecting pipe 106, and the air supply port 35 is communicated with the first connecting pipe 101.
Preferably, a catalyst plated on a honeycomb ceramic carrier by noble metals such as palladium and platinum is arranged in the catalytic chamber 4, the honeycomb ceramic carrier is in a square shape, the outer surface of the honeycomb ceramic carrier is in a honeycomb shape, and the catalyst is coated on the outer surface of the honeycomb ceramic carrier; the top surface of the catalyst chamber 4 is communicated with the first connecting pipe 101, and the upper side of the right end surface of the catalyst chamber 4 is communicated with the second connecting pipe 102.
Preferably, the burner 6 is communicated with the combustion chamber 5 via the third connecting pipe 103, and the burner 6 comprises an air supply system, an ignition system, a monitoring system, a fuel system and an electric control system; the air supply system is provided with an air pump, the ignition system is provided with a high-temperature ignition device, the monitoring system is provided with a temperature sensor and a pressure sensor, the fuel system stores combustion improver, the electric control system is provided with a PLC automatic control module, and the electric control system is electrically connected with the ignition system, the monitoring system, the air supply system and the fuel system.
Preferably, a fire-retardant dust remover, a pressure relief opening and an over-temperature alarm device are arranged in the combustion chamber 5, and the over-temperature alarm device is in signal connection with the combustor 6.
Preferably, the cover 13 is made of an aluminum surface galvanized material.
Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (9)
1. An organic waste gas catalytic combustion device, characterized in that: the device comprises a pretreatment device, a zeolite concentration rotating wheel, a heat exchanger, a catalytic chamber, a combustion chamber, a combustor, a desorption fan, an adsorption fan, an exhaust pipe, a connecting pipe, an exhaust gas inlet, a maintenance door, a cover cap and a base; the cover cap is square, the fixed cover cap is connected to the base in a covering mode, the left end face of the cover cap is provided with an exhaust gas inlet, and the front face of the cover cap is provided with a plurality of maintenance doors; the pretreatment device and the zeolite concentration rotating wheel are sequentially arranged in the cover from left to right, the upper part of the back surface of the zeolite concentration rotating wheel is connected with the heat exchanger, the lower part of the back surface of the zeolite concentration rotating wheel is provided with an adsorption fan and a desorption fan, the adsorption fan is provided with an exhaust port, the exhaust port is connected with the exhaust pipe, and the desorption fan is connected in front of the adsorption fan; a catalytic chamber, a combustion chamber and a combustor are sequentially arranged on the outer right side of the cover; the connecting pipe is communicated with the heat exchanger, the catalytic chamber, the combustor, the combustion chamber, the desorption fan and the exhaust pipe.
2. The catalytic combustion apparatus for organic exhaust gas according to claim 1, characterized in that: the connecting pipes comprise a first connecting pipe, a second connecting pipe, a third connecting pipe, a fourth connecting pipe, a fifth connecting pipe and a sixth connecting pipe; one end of the first connecting pipe is communicated with the heat exchanger, and the other end of the first connecting pipe is communicated with the catalytic chamber; one end of the second connecting pipe is communicated with the catalytic chamber, and the other end of the second connecting pipe is communicated with the combustion chamber; the third connecting pipe passes through the combustor, and both ends of the third connecting pipe are connected with the combustion chamber; one end of the fourth connecting pipe is communicated with the combustion chamber, and the other end of the fourth connecting pipe is communicated with the desorption fan; one end of the fifth connecting pipe is communicated with the desorption fan, and the other end of the fifth connecting pipe is communicated with the heat exchanger; one end of the sixth connecting pipe is communicated with the heat exchanger, and the other end of the sixth connecting pipe is communicated with the exhaust pipe.
3. The catalytic combustion apparatus for organic exhaust gas according to claim 1, characterized in that: the pretreatment device comprises a primary filter, a medium-efficiency filter and a high-efficiency filter; the primary filter and the intermediate filter are connected together and are arranged at the left end in the cover cap, and the high-efficiency filter is arranged behind the primary filter; the primary filter is a folding primary filter and comprises a filter material and a support grid, wherein the filter material is made by folding pure white cotton, and is fixedly connected to the support grid; the middle-effect filter is of a bag-type structure, and an opening part of the bag-type structure is fixedly connected to the upper surface of a support grid of the primary-effect filter and wraps the filter material of the primary-effect filter; the high efficiency filter includes filter paper, interval aluminum plate, frame, interval aluminum plate equidistance is arranged and is connected in the frame, filter paper covers interval aluminum plate is last, the frame material is the aluminum alloy ex-trusions, the filter paper material is polypropylene filter paper, the peripheral frame department of connecting of filter paper is sealed with sealed glue of environmental protection polyurethane.
4. The catalytic combustion apparatus for organic exhaust gas according to claim 1, characterized in that: the zeolite concentration rotating wheel is arranged behind the high-efficiency filter, the zeolite concentration rotating wheel takes ceramic fibers as a base material and is manufactured into a honeycomb-shaped disc wheel-shaped structure, hydrophobic zeolite is coated on the surface of the zeolite concentration rotating wheel to serve as an adsorbent, and the zeolite concentration rotating wheel is divided into three fan-shaped areas which are an adsorption area, a desorption area and a cooling area respectively; an adsorption fan is arranged below the back of the zeolite concentration rotating wheel, an air suction port is arranged at the position, opposite to the adsorption position, of the adsorption fan, an air exhaust port is further arranged on the adsorption fan, the air exhaust port is connected with an air exhaust pipe, and the air exhaust pipe extends upwards out of a cover; the adsorption fan dead ahead is connected with the desorption fan, the desorption fan is equipped with air inlet, blow vent, the air inlet with the fourth connecting pipe switch-on, the blow vent with the fifth connecting pipe switch-on.
5. The catalytic combustion apparatus for organic exhaust gas according to claim 1, characterized in that: the heat exchanger is a full-welded plate heat exchanger and is connected above the back of the zeolite concentration rotating wheel, and the heat exchanger is provided with a low-temperature gas inlet, a high-temperature gas inlet, a hot gas outlet, an exhaust outlet and a gas supply port; the low-temperature gas inlet is arranged on the back face of the cooling area, the high-temperature gas inlet is communicated with the fifth connecting pipe, the hot gas outlet is arranged on the back face of the desorption area, the exhaust outlet is communicated with the sixth connecting pipe, and the gas supply opening is communicated with the first connecting pipe.
6. The catalytic combustion apparatus for organic exhaust gas according to claim 1, characterized in that: the catalyst plated on the honeycomb ceramic carrier by noble metal palladium and platinum is arranged in the catalytic chamber, the honeycomb ceramic carrier is in a square shape, the outer surface of the honeycomb ceramic carrier is in a honeycomb shape, and the catalyst is coated on the outer surface of the honeycomb ceramic carrier; the top surface of the catalytic chamber is communicated with the first connecting pipe, and the upper side of the right end surface of the catalytic chamber is communicated with the second connecting pipe.
7. The catalytic combustion apparatus for organic exhaust gas according to claim 1, characterized in that: the combustor is communicated with the combustion chamber through the third connecting pipe and comprises an air supply system, an ignition system, a monitoring system, a fuel system and an electric control system; the air supply system is provided with an air pump, the ignition system is provided with a high-temperature ignition device, the monitoring system is provided with a temperature sensor and a pressure sensor, the fuel system stores combustion improver, the electric control system is provided with a PLC automatic control module, and the electric control system is electrically connected with the ignition system, the monitoring system, the air supply system and the fuel system.
8. The catalytic combustion apparatus for organic exhaust gas according to claim 1, characterized in that: and a fire-retardant dust remover, a pressure relief opening and an over-temperature alarm device are arranged in the combustion chamber, and the over-temperature alarm device is in signal connection with the combustor.
9. The catalytic combustion apparatus for organic exhaust gas according to claim 1, characterized in that: the cover cap is made of an aluminum surface galvanized material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010557340.XA CN111810973A (en) | 2020-06-18 | 2020-06-18 | Organic waste gas catalytic combustion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010557340.XA CN111810973A (en) | 2020-06-18 | 2020-06-18 | Organic waste gas catalytic combustion device |
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| CN111810973A true CN111810973A (en) | 2020-10-23 |
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| CN202010557340.XA Pending CN111810973A (en) | 2020-06-18 | 2020-06-18 | Organic waste gas catalytic combustion device |
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| CN (1) | CN111810973A (en) |
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| CN113028419A (en) * | 2021-02-20 | 2021-06-25 | 樊品良 | Efficient hot air equipment for in-pipe accurate oxygen distribution and two-stage catalytic combustion |
| CN113731111A (en) * | 2021-09-07 | 2021-12-03 | 福建师范大学 | Key technology integration and complete set of integrated treatment equipment for efficient purification of volatile organic compounds |
| CN113739170A (en) * | 2021-08-02 | 2021-12-03 | 江苏科技大学 | Coating workshop VOCs treatment and temperature combined control system and method |
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Inventor after: Liang Cheng Inventor after: Nie Wenju Inventor before: Liang Cheng Inventor before: Nie Wenju Inventor before: Qin Xuejin |