CN112460621A - Organic waste gas treatment equipment and treatment method thereof - Google Patents
Organic waste gas treatment equipment and treatment method thereof Download PDFInfo
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- CN112460621A CN112460621A CN202011419160.1A CN202011419160A CN112460621A CN 112460621 A CN112460621 A CN 112460621A CN 202011419160 A CN202011419160 A CN 202011419160A CN 112460621 A CN112460621 A CN 112460621A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
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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
- B01D53/002—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 condensation
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
Abstract
The invention provides an organic waste gas treatment device, which relates to the technical field of organic waste gas treatment, and comprises a pre-filter device, a physical heat stabilizer, a direct-fired combustion device and a condensing device, wherein a waste gas inlet, a waste gas outlet, a purified gas inlet and a purified gas outlet are simultaneously arranged on the physical heat stabilizer, the pre-filter device is communicated with the waste gas inlet of the physical heat stabilizer, the waste gas outlet of the physical heat stabilizer is communicated with the gas inlet of the direct-fired combustion device, the gas outlet of the direct-fired combustion device is communicated with the purified gas inlet of the physical heat stabilizer, and the purified gas outlet of the physical heat stabilizer is communicated with the condensing device. And a method of treating an organic waste gas is provided. The invention overcomes the defect that organic waste gas discharged from a workshop production unit is heated to the temperature required by reaction by independently adopting combustion equipment to combust, and more energy is consumed because the heat generated after the organic waste gas is combusted is not effectively recycled.
Description
Technical Field
The invention relates to the technical field of organic waste gas treatment, in particular to organic waste gas treatment equipment and a treatment method thereof.
Background
Atmospheric pollution is one of the most prominent environmental problems in the world at present, the main source of the pollution is industrial waste gas, and various organic waste gases are generated in industrial production and mainly comprise various hydrocarbons, alcohols, aldehydes, acids, ketones, amines and the like.
The sources of these waste gases are very wide, and some chemical industries, such as petrochemical industry, organic synthesis reaction equipment exhaust, organic solvents in printing ink in printing industry, mechanical industry mechanical spray paint, odor generated by metal products, automobile spray paint in automobile industry, drying furnace casting production equipment exhaust, hardware, home furniture spraying equipment exhaust, and the like.
Hazard of organic waste gas: in production, the emission of organic waste gas is always a prominent problem, and most of the organic waste gas is harmful to human health. For example, after organic waste gas enters a human body through a respiratory tract and skin, the organic waste gas can cause temporary and permanent pathological changes to equipment and organs such as breath, blood, liver and the like of the human body, and particularly benzopyrene polycyclic aromatic hydrocarbons can directly cause carcinogenesis to the human body and harm the health of the human body. Organic waste gases also cause serious atmospheric pollution. After some organic matters enter the atmosphere, photochemical smog is formed under certain conditions, so that secondary pollution is caused; after some organic matters enter a stratosphere, the organic matters and ozone are subjected to photochemical reaction under the irradiation of ultraviolet rays to form ozone holes; some organic matter has the dual properties of malodorous pollution and harmful gases; still other organic substances cause greenhouse effect. Therefore, proper methods for organic waste gas treatment are in need.
Organic waste gas is handled to direct combustion method commonly used among the prior art, for example, combustion apparatus directly communicates with workshop production unit, the organic waste gas of production discharges to combustion apparatus in from workshop production unit, because organic waste gas's reaction temperature is higher than the organic waste gas temperature that the unit discharged far away, organic waste gas directly gets into combustion apparatus, can absorb a large amount of heats of equipment during the intensification, for guaranteeing the exhaust purification effect, combustion apparatus need continuously use auxiliary fuel to maintain the inside temperature of equipment at organic waste gas's reaction temperature interval, lead to consuming more energy.
Disclosure of Invention
In view of the above, an object of the present invention is to provide an organic waste gas treatment device, so as to solve the technical problem in the prior art that organic waste gas discharged from a workshop production unit is heated to a temperature required by a reaction by using a combustion device alone, and the heat generated after the organic waste gas is combusted is not effectively recycled, and the organic waste gas is not preheated in advance, so that more energy is consumed.
The second objective of the present invention is to provide a method for treating organic waste gas by using the above organic waste gas treatment equipment.
In order to achieve one of the above objects, the present invention provides an organic waste gas treatment apparatus, comprising a pre-filter device, a physical heat stabilizer, a direct-fired burner, and a condenser, wherein:
the utility model discloses a heat treatment device, including physics formula heat stabilizer, physical formula heat stabilizer, exhaust outlet, purification gas inlet, leading filter equipment, physics formula heat stabilizer, the last waste gas import, exhaust outlet, purification gas import and the purification gas export of setting up simultaneously of physics formula heat stabilizer, leading filter equipment with physics formula heat stabilizer the waste gas access connection and intercommunication, physics formula heat stabilizer the exhaust outlet with direct combustion formula burner's air inlet is connected and is linked together, physics formula heat stabilizer the purification gas export with condensing equipment connects and communicates.
According to an optional embodiment of the present invention, the system further comprises a thermal energy recovery device, wherein the thermal energy recovery device is connected and communicated with the purified gas outlet of the physical heat stabilizer.
According to an optional embodiment of the present invention, the physical heat stabilizer includes a primary heat stabilizer, a secondary heat stabilizer, and a tertiary heat stabilizer, the primary heat stabilizer, the secondary heat stabilizer, and the tertiary heat stabilizer are sequentially connected end to end, the primary heat stabilizer is connected to the pre-filter, and the tertiary heat stabilizer is connected to the direct-fired burner.
According to an optional embodiment of the present invention, the heat energy recovery device is installed between the primary heat stabilizer and the secondary heat stabilizer or between the secondary heat stabilizer and the tertiary heat stabilizer or between the tertiary heat stabilizer and the direct combustion type combustion device.
According to an optional embodiment of the present invention, the condensation device further comprises a centrifugal fan, and the centrifugal fan is connected to the condensation device.
According to an optional embodiment of the invention, a frequency converter is mounted on the centrifugal fan, and the frequency converter adjusts the frequency according to the required air volume or the net negative pressure of the device inlet.
According to an optional embodiment of the present invention, the direct combustion type combustion apparatus comprises an ignition zone, a preheating zone, a reaction zone and a reaction hot bin, wherein the ignition zone, the preheating zone, the reaction zone and the reaction hot bin are sequentially arranged from top to bottom.
According to an alternative embodiment of the invention, a temperature sensor is installed in the reaction zone.
In order to achieve the second purpose, the invention provides an organic waste gas treatment method, which comprises the steps of preheating organic waste gas through a physical heat stabilizer after primary filtration, introducing the preheated organic waste gas into a direct-fired combustion device, purifying the organic waste gas in the direct-fired combustion device, discharging the purified gas to the physical heat stabilizer, preheating the organic waste gas entering the direct-fired combustion device through the physical heat stabilizer, and finally condensing the organic waste gas through a condensing device and then discharging the organic waste gas outwards.
According to an optional embodiment of the invention, the organic waste gas is preheated in three stages, and the temperature is gradually increased, wherein the temperature is increased by 60 ℃ for the first time, 65 ℃ for the second time and 110 ℃ for the third time.
The organic waste gas treatment equipment provided by the invention has the following technical effects:
the organic waste gas treatment equipment mainly comprises a pre-filtering device, a physical heat stabilizing device, a direct-fired combustion device and a condensing device, compared with the traditional treatment equipment, the physical heat stabilizing device is added, organic waste gas entering the direct-fired combustion device is preheated by the physical heat stabilizing device, namely, after the organic waste gas is combusted by the direct-fired combustion device, high-temperature purified gas is generated and discharged to the physical heat stabilizing device, the mode can fully utilize the heat of the purified gas discharged by the direct-fired combustion device, not only can the temperature of the organic waste gas to be combusted and reacted be improved, but also the cold source quantity required by the temperature reduction of the purified high-temperature gas is reduced, the problem that the organic waste gas discharged from a workshop production unit is heated to the temperature required by the reaction by independently adopting the combustion equipment is solved, and the heat generated after the combustion of the organic waste gas is not effectively recycled, the organic exhaust gas is not preheated in advance, resulting in the defect of consuming more energy.
The organic waste gas treatment method provided by the invention has the following technical effects:
compared with the traditional treatment method, the organic waste gas treatment method increases the step of preheating the organic waste gas, the heat source is the heat of the purified gas generated by the combustion of the direct-fired combustion device, namely the organic waste gas is preheated by the purified gas discharged from the direct-fired combustion device before entering the direct-fired combustion device for combustion, so that the cold source quantity required by the temperature reduction of the purified high-temperature gas can be reduced, and the heat required by the temperature rise of the direct-fired combustion device to the combustion temperature can be reduced, thereby reducing the energy consumption of the equipment operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of an organic waste gas treatment apparatus according to an embodiment of the present invention;
fig. 2 is an internal structural view of the direct combustion apparatus of fig. 1.
Wherein, fig. 1-2:
100. a pre-filter device; 200. a physical heat stabilizer; 201. a primary heat stabilizer; 202. a secondary heat stabilizer; 203. a third-stage heat stabilizer; 300. a direct-fired combustion device; 400. a condensing unit; 500. a heat energy recovery device; 600. a heat medium exchange vessel; 700. a workshop production unit; 701. a terminal heat exchange device; 800. a centrifugal fan;
A. an exhaust gas inlet; B. an exhaust gas outlet; C. a purified gas inlet; D. and a purified gas outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The technical scheme of the equipment and the technical scheme of the method are explained in detail by combining the embodiment.
Example 1:
the organic waste gas treatment apparatus provided by this embodiment, as shown in fig. 1, includes a pre-filter device 100, a physical heat stabilizer 200, a direct-fired burner 300, and a condenser 400, wherein the physical heat stabilizer 200 is simultaneously provided with a waste gas inlet a, a waste gas outlet B, a purified gas inlet C, and a purified gas outlet D, the pre-filter device 100 is connected and communicated with the waste gas inlet a of the physical heat stabilizer 200, the waste gas outlet B of the physical heat stabilizer 200 is connected and communicated with an air inlet of the direct-fired burner 300, an air outlet of the direct-fired burner 300 is connected and communicated with the purified gas inlet C of the physical heat stabilizer 200, and the purified gas outlet D of the physical heat stabilizer 200 is connected and communicated with the condenser 400.
In an embodiment of the present invention, the physical heat stabilizer 200 includes a primary heat stabilizer 201, a secondary heat stabilizer 202, and a tertiary heat stabilizer 203, as shown in fig. 1, the primary heat stabilizer 201, the secondary heat stabilizer 202, and the tertiary heat stabilizer 203 are sequentially connected end to end, the primary heat stabilizer 201 is connected to the pre-filter 100, and the tertiary heat stabilizer 203 is connected to the direct-fired burner 300.
It should be noted that the physical heat stabilizer 200 of the present invention is not limited to only having the three-stage heat stabilizer 203, and may also be selected according to the actual application scenario or the actual process condition, and as long as the purpose of reducing the temperature of the purified gas and preheating the organic waste gas can be achieved, the present invention is not limited thereto.
The physical heat stabilizer 200 is divided into a waste gas inlet A, a waste gas outlet B, a purified gas inlet C and a purified gas outlet D, wherein organic waste gas enters from the waste gas inlet A, and flows out from the waste gas outlet B; the high-temperature purified gas enters from the purified gas inlet C and flows out from the purified gas outlet D. The two air flows are heat-exchanging quantity in the physical heat stabilizer 200, so as to achieve the effects of preheating the organic waste gas and gradually cooling the purified gas. The preheated organic waste gas can effectively reduce the energy consumption (electric heat, natural gas and the like) required by the temperature rise of the direct-fired combustion device 300, and the purified gas after temperature reduction can reduce the energy consumption of the equipment outlet condensing device 400.
As shown in fig. 1, an inlet of the pre-filter device 100 is connected to an organic exhaust gas discharge pipe generated by the plant manufacturing unit 700, an exhaust gas inlet a1 of the primary heat stabilizer 201 is connected to an outlet of the pre-filter device 100, an exhaust gas outlet B1 is connected to an exhaust gas inlet a2 of the secondary heat stabilizer 202, and high temperature purified gas enters from a purified gas inlet C1 and flows out from a purified gas outlet D1.
As shown in fig. 1, the exhaust gas inlet a2 of the secondary heat stabilizer 202 is connected to the exhaust gas outlet B1 of the primary heat stabilizer 201, and the exhaust gas outlet B2 is connected to the exhaust gas inlet A3 of the tertiary heat stabilizer 203, and the high temperature purified gas enters from the purified gas inlet C2 and exits from the purified gas outlet D2.
As shown in fig. 1, the exhaust gas inlet a3 of the tertiary heat stabilizer 203 is connected to the exhaust gas outlet B2 of the secondary heat stabilizer 202, the exhaust gas outlet B3 is connected to the intake duct of the direct combustion burner 300, and the high temperature purge gas enters from the purge gas inlet C3 and exits from the purge gas outlet D4.
In order to recover heat for the plant production unit 700, the present invention further comprises a thermal energy recovery device 500, wherein the thermal energy recovery device 500 is connected and communicated with the purified gas outlet D2 of the physical heat stabilizer 200.
Specifically, the heat energy recovery device 500 is of a dividing wall type structure, purified high-temperature gas enters the heat energy recovery device 500 from a heat source inlet and then flows out from an outlet, a heat exchange medium continuously circulates between the heat energy recovery device 500 and the heat medium exchange container 600 through a medium inlet and a medium outlet, in the process, heat carried by the high-temperature gas is converted to the medium, the obtained medium returns to the heat medium exchange container 600, the heat medium exchange container 600 is additionally provided with an input pipeline and an output pipeline which are connected with a terminal heat exchange device 701 of the workshop production unit 700, the obtained medium is conveyed to the terminal heat exchange device 701, the heat of the medium is converted to a heat source required by the workshop production unit 700, and therefore the purpose of energy conservation is achieved.
It should be noted that, the heat source temperature required by the workshop production unit 700 is different, and the adopted medium is also different, if the required heat source temperature is not high, water can be used as the medium, if the required heat source temperature is high, heat conduction oil can be used as the medium, and whatever medium is, as long as the purpose of heat conduction can be achieved, the invention is within the protection scope.
Further, a safety valve is additionally arranged between the second-stage heat stabilizer 202 and the third-stage heat stabilizer 203, when the concentration of the entering organic waste gas is too high or deflagration can be generated, so that the temperature and the pressure in the direct-fired combustion device 300 can be rapidly raised, and then the direct-fired combustion device catches fire, the safety valve can directly cut off the air flow of a pipeline, the fire is prevented from going back, and the safety of front-end equipment is further ensured.
In a further embodiment of the present invention, the thermal energy recovery device 500 is installed between the primary heat stabilizer 201 and the secondary heat stabilizer 202 or between the secondary heat stabilizer 202 and the tertiary heat stabilizer 203 or between the tertiary heat stabilizer 203 and the direct-fired burner 300.
The position of the thermal energy recovery device 500 in the organic waste gas treatment facility is not fixed, and the installation position of the thermal energy recovery device 500 is determined according to the heat source requirement required by the workshop production unit 700 before the facility is manufactured, and the closer to the purified gas outlet position of the direct-fired combustion device 300, the more heat can be recovered, the higher the temperature of the converted medium is, and the more heat sources are available for the workshop production unit 700.
In a further embodiment of the present invention, the condensing device 400 mainly comprises a water-vapor separation device, and utilizes the characteristics of air flow, and a rotational flow structure design is adopted in the device, so that purified gas autorotates in the condensing device 400 to generate a vortex state, the rotational flow design increases the friction amount of the gas, prolongs the retention time of the gas in the condensing device 400, and when the temperature is rapidly reduced, water vapor is changed into liquid water, and due to different specific gravities of water vapor, the gas naturally rises in the vortex state, and condensed water is collected downwards and finally discharged from a drain hole, thereby realizing water-vapor separation.
The purified gas is unstable in high temperature environment, and a condensing device 400 is additionally arranged in the equipment to prevent the purified exhaust gas from reacting with other substances at high temperature to generate new pollutants.
In a further embodiment of the present invention, a centrifugal fan 800 is further included, as shown in fig. 1, the centrifugal fan 800 is connected to the condensing device 400, and in order to control the air volume of the centrifugal fan 800, a frequency converter is installed on the centrifugal fan 800, and the frequency converter adjusts the frequency according to the required air volume or the net negative pressure at the inlet of the device.
Further, an organic waste gas concentration detection point is arranged at the tail end of the centrifugal fan 800 and a chimney, when the detected concentration does not reach the emission standard, an alarm is given, an operator needs to check whether the reactant reaches the replacement period, and meanwhile, a heating pipe and an ignition device are started to increase the temperature in the combustion equipment so as to reach the temperature required by the oxidation reaction.
In a further embodiment of the present invention, the direct combustion type combustion apparatus 300 includes an ignition region, a preheating region, a reaction region and a reaction hot bin, which are sequentially arranged from top to bottom as shown in fig. 2.
The ignition device is positioned above the side of the whole device, the ignition device is started to generate open fire, flame is conducted downwards under the action of the attraction force of the centrifugal fan 800, heat is spread downwards, and the preheating area is heated and heated.
The reaction zone is formed by alternately installing a reaction bed and a heating pipe in a layered manner, a reactant is placed on the reaction bed and is positioned above the heating pipe, and after high-temperature airflow enters the reaction zone, the reactant reacts with the reactant to generate long-arc high-temperature red waves. When the temperature sensor arranged in the reaction zone detects that the temperature reaches a set value, the ignition device stops running, the heating pipe in the reaction zone is started, the reaction temperature in the direct-fired combustion device 300 is kept, at the moment, the whole device has no open fire and is uniformly distributed with infrared rays, the temperature of a furnace core can reach 475 ℃, and the entering organic waste gas fully reacts in the reaction hot bin after passing through the reaction zone and is decomposed into carbon dioxide and water.
When the concentration of the organic waste gas entering the direct-fired combustion device 300 reaches 2000ppm, the oxidation reaction of the organic waste gas releases a large amount of heat, the reactant can maintain spontaneous combustion without external energy, and the heating pipe stops running, thereby greatly saving the energy consumption.
The conventional direct-fired waste gas treatment equipment adopts open fire, and when organic waste gas enters, air flow fluctuation can be generated, so that flame swings along with the air flow, the gas is heated unevenly, oxidation reaction is carried out or is insufficient, and the treatment effect is further influenced. In the invention, after the long-arc red wave is generated, the ignition device stops running, the heating pipe heats up, no open fire exists in the direct-combustion type combustion device 300, and high-temperature infrared rays are distributed in the direct-combustion type combustion device 300. When the organic waste gas enters, the organic waste gas can be uniformly heated and fully carry out the oxidation reaction.
Further, the direct-fired combustion device 300 is also provided with a temperature sensor, a pressure sensor and an explosion-proof valve plate, the temperature sensor monitors the internal temperature of the device in real time, and the starting and stopping of the ignition device and the heating pipe are controlled, so that the energy consumption of equipment operation can be effectively saved. The pressure sensor is a safety alarm device, when the pressure in the device exceeds a set alarm value, early warning is immediately carried out, and an operator is alerted to carry out shutdown inspection; when the pressure exceeds the set pressure, the explosion-proof valve plate automatically breaks to release the pressure, so that the explosion of the device is prevented.
Compared with the traditional treatment equipment, the organic waste gas treatment equipment of the embodiment is additionally provided with the physical heat stabilizer, the organic waste gas entering the direct-fired combustion device 300 is preheated by the physical heat stabilizer 200, namely, after the organic waste gas is combusted by the direct-fired combustion device 300, the high-temperature purified gas is discharged to the physical heat stabilizer 200, the mode can fully utilize the heat of the purified gas discharged by the direct-fired combustion device 300, not only can improve the temperature of the organic waste gas to be combusted and reacted, but also can reduce the amount of a cold source required by cooling the purified high-temperature gas, overcomes the defect that the organic waste gas discharged from the workshop production unit 700 is heated to the temperature required by the reaction when combustion equipment is independently adopted to combust the organic waste gas, the heat generated after the organic waste gas is combusted is not effectively recycled, and the organic waste gas is not preheated in advance, so that the defect of consuming more energy is caused.
Example 2:
the embodiment provides an organic waste gas treatment method, which comprises the steps of preheating organic waste gas through a physical type heat stabilizer 200 after preliminary filtration, enabling the preheated organic waste gas to enter a direct-fired combustion device 300, purifying the organic waste gas in the direct-fired combustion device 300, discharging the purified gas to the physical type heat stabilizer 200, preheating the organic waste gas entering the direct-fired combustion device 300 through the physical type heat stabilizer 200, and finally condensing the organic waste gas through a condenser 400 and then discharging the organic waste gas outwards.
Specifically, the high-concentration organic waste gas generated by the workshop production unit 700 is collected uniformly by the gas-collecting hood and the exhaust duct, and then is sent to the physical catalytic and direct-fired combustion equipment, and the method specifically comprises the following steps:
(1) under the action of the gravity of the centrifugal fan 800, the organic waste gas passes through the front-end filter device 100, and filter materials such as glass fibers and activated carbon filter cotton are contained in the front-end filter device 100 to intercept dust, solid particles and sticky substances in the organic waste gas;
(2) the primarily filtered organic waste gas passes through the primary heat stabilizer 201 to be gradually heated, the temperature of the organic waste gas can be raised by about 60 ℃ after passing through the primary heat stabilizer 201, then the organic waste gas passes through the secondary heat stabilizer 202 to be raised by about 65 ℃, and finally the organic waste gas passes through the tertiary heat stabilizer 203 to be raised by about 110 ℃.
After passing through the multi-stage heat stabilizer, the heat of the high-temperature gas discharged from the direct-fired combustion device 300 is gradually transferred to the organic waste gas to be treated, so that the organic waste gas is preheated, an oxidation reaction is carried out under the condition of sufficient oxygen supply, and part of the organic waste gas with low thermal oxidation temperature is decomposed in advance;
(3) the direct-fired combustion apparatus 300 is first ignited by an ignition device to heat the preheating zone, then extends to the reaction zone, and generates a long-arc high-temperature red wave after reacting with the reactant. The ignition is then stopped and the heating tube is started. At the moment, the device is free of open fire and is uniformly full of infrared rays, and the central temperature can reach 475 ℃. The organic waste gas enters the direct-fired combustion device 300 to generate gas flow, and the gas flow is uniformly heated and reacted in the device to generate carbon dioxide and water. The organic waste gas is purified. The temperature of the purified gas reaches about 350-;
(4) the purified gas after heat exchange enters a condensing device 400 for physical cooling, and the purified gas is condensed and qualified through water-vapor separation;
(5) the purified gas after condensation qualitative is evacuated through a chimney by an explosion-proof and anti-static centrifugal fan 800;
(6) the heat energy recovery device 500 is a dividing wall structure, and the heat energy carried by the purified high-temperature gas is replaced by media (such as water, steam, heat-conducting oil, etc.), and is sent to the terminal heat exchange device 701 of the workshop through the heat medium exchange container 600, and is converted into a heat source required by the production of workshop units, so as to be used by equipment, and the purpose of recycling is achieved.
The heat energy recovery device 500 can be placed at different positions of the gas outlet pipeline for purifying gas according to the temperature of the heat source required by the workshop terminal unit, and the more the heat energy is close to the direct-fired combustion device 300, the more the heat energy can be recovered.
Compared with the conventional treatment method, the organic waste gas treatment method of the embodiment adds the step of preheating the organic waste gas, wherein the heat source is the heat of the purified gas generated by the combustion of the direct-fired combustion device 300, that is, the purified gas discharged from the direct-fired combustion device 300 is preheated before the organic waste gas enters the direct-fired combustion device 300 for combustion, so that on one hand, the amount of a cold source required for cooling the purified high-temperature gas can be reduced, on the other hand, the amount of heat required for heating the direct-fired combustion device 300 to the combustion temperature can be reduced, and therefore, the energy consumption of the equipment operation is reduced.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. An organic waste gas treatment device, which is characterized by comprising a pre-filtering device, a physical heat stabilizer, a direct-fired combustion device and a condensing device, wherein:
the utility model discloses a heat treatment device, including physics formula heat stabilizer, physical formula heat stabilizer, exhaust outlet, purification gas inlet, leading filter equipment, physics formula heat stabilizer, the last waste gas import, exhaust outlet, purification gas import and the purification gas export of setting up simultaneously of physics formula heat stabilizer, leading filter equipment with physics formula heat stabilizer the waste gas access connection and intercommunication, physics formula heat stabilizer the exhaust outlet with direct combustion formula burner's air inlet is connected and is linked together, physics formula heat stabilizer the purification gas export with condensing equipment connects and communicates.
2. The organic waste gas treatment apparatus according to claim 1, further comprising a thermal energy recovery device connected to and communicating with the purified gas outlet of the physical heat stabilizer.
3. The organic waste gas treatment equipment according to claim 2, wherein the physical heat stabilizer comprises a primary heat stabilizer, a secondary heat stabilizer and a tertiary heat stabilizer, the primary heat stabilizer, the secondary heat stabilizer and the tertiary heat stabilizer are sequentially connected end to end, the primary heat stabilizer is connected with the pre-filter, and the tertiary heat stabilizer is connected with the direct-fired combustion device.
4. The organic waste gas treatment apparatus according to claim 3, wherein the thermal energy recovery device is installed between the primary heat stabilizer and the secondary heat stabilizer or between the secondary heat stabilizer and the tertiary heat stabilizer or between the tertiary heat stabilizer and the direct combustion device.
5. The organic waste gas treatment apparatus according to claim 3, further comprising a centrifugal fan connected to the condensing device.
6. The organic waste gas treatment equipment according to claim 5, wherein a frequency converter is mounted on the centrifugal fan, and the frequency converter adjusts the frequency according to the required air volume or the net negative pressure of the device inlet.
7. The organic waste gas treatment apparatus according to claim 5, wherein the direct combustion type combustion device comprises an ignition zone, a preheating zone, a reaction zone and a reaction hot bin, and the ignition zone, the preheating zone, the reaction zone and the reaction hot bin are arranged in sequence from top to bottom.
8. The organic waste gas treatment apparatus according to claim 7, wherein a temperature sensor is installed in the reaction zone.
9. The method is characterized by comprising the steps of preheating organic waste gas through a physical heat stabilizer after the organic waste gas is preliminarily filtered, enabling the preheated organic waste gas to enter a direct-fired combustion device, purifying the organic waste gas in the direct-fired combustion device, discharging the purified gas to the physical heat stabilizer, preheating the organic waste gas entering the direct-fired combustion device through the physical heat stabilizer, and finally condensing the organic waste gas through a condensing device and then discharging the organic waste gas outwards.
10. The organic waste gas treatment method according to claim 9, wherein the organic waste gas is preheated in three stages, and the temperature is gradually increased, wherein the temperature is increased by 60 ℃ for the first time, 65 ℃ for the second time and 110 ℃ for the third time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011419160.1A CN112460621A (en) | 2020-12-07 | 2020-12-07 | Organic waste gas treatment equipment and treatment method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011419160.1A CN112460621A (en) | 2020-12-07 | 2020-12-07 | Organic waste gas treatment equipment and treatment method thereof |
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| CN112460621A true CN112460621A (en) | 2021-03-09 |
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| CN202011419160.1A Pending CN112460621A (en) | 2020-12-07 | 2020-12-07 | Organic waste gas treatment equipment and treatment method thereof |
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2020
- 2020-12-07 CN CN202011419160.1A patent/CN112460621A/en active Pending
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