CN110686259A - Movable thermal oxidizer - Google Patents
Movable thermal oxidizer Download PDFInfo
- Publication number
- CN110686259A CN110686259A CN201910993924.9A CN201910993924A CN110686259A CN 110686259 A CN110686259 A CN 110686259A CN 201910993924 A CN201910993924 A CN 201910993924A CN 110686259 A CN110686259 A CN 110686259A
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- heat exchange
- chamber
- waste gas
- heating chamber
- box body
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2203/00—Furnace arrangements
- F23G2203/60—Mobile furnace
- F23G2203/601—Mobile furnace carried by a vehicle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
Abstract
The invention discloses a movable thermal oxidizer, which belongs to the technical field of environmental protection equipment and comprises a base capable of being arranged on a transport vehicle, wherein the base is provided with a fan, a catalytic combustion chamber, a heating chamber and a heat exchange chamber; the catalytic combustion chamber is separated from the heating chamber and the catalytic combustion chamber is separated from the heat exchange chamber by a catalytic bed containing catalyst, the catalytic bed is provided with air holes, and the top of the heat exchange chamber is provided with a discharge pipe. The invention can be flexibly and conveniently transported to any place; the waste gas is conveyed to the heat exchange tube by the fan to be preheated and then enters the heating chamber to be heated, the high-temperature waste gas reacts with the catalyst to generate carbon dioxide and water vapor when passing through the catalytic bed, the water vapor exchanges heat with the waste gas in the heat exchange tube to achieve the purpose of fully utilizing the waste heat, and finally the waste gas is discharged to the atmosphere through the discharge tube.
Description
Technical Field
The invention belongs to the technical field of environmental protection equipment, and particularly relates to a movable thermal oxidizer.
Background
In various chemical engineering processes, the generated waste liquid and waste gas need to be effectively destroyed by a thermal oxidizer before being discharged to the environment, so that the discharge of pollutants in the waste liquid and waste gas is greatly reduced. In order to destroy harmful components in waste liquid and waste gas pollutants, the harmful components are treated by adopting the thermal oxidation principle of a thermal oxidizer. "thermal oxidation" is a combustion process in which pollutants and oxygen undergo an oxidation reaction at a certain temperature during a thermal oxidation process. The products of the chemical reaction are harmless substances, and the generated products are carbon dioxide, water vapor and heat, so that safe emission is realized.
The thermal oxidizers in the prior art are fixedly installed and cannot move along with the movement of a production place, and the thermal oxidizers need to be disassembled and reinstalled after the production place is changed, so that the great waste of financial resources and material resources is caused. In view of the situation of randomly discharging toxic volatile organic gases in petrochemical, oil refining, dock or storage tank, etc., the thermal oxidizer in the prior art cannot treat the waste gas on site, which results in increased air pollution.
Disclosure of Invention
The invention aims to provide a movable thermal oxidizer, and aims to solve the technical problems that a fixed thermal oxidizer in the prior art cannot be moved and cannot be moved to a temporary waste gas discharge place to treat waste gas on site.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a movable thermal oxidizer comprises a base capable of being placed on a transport vehicle, wherein a fan, a catalytic combustion chamber, a heating chamber and a heat exchange chamber are arranged on the base, and the heating chamber is provided with a heater; a heat exchanger is arranged in the heat exchange chamber, an air inlet of a heat exchange tube of the heat exchanger is communicated with a waste gas pipeline, the fan is arranged on the waste gas pipeline, and an air outlet of the heat exchange tube of the heat exchanger faces the heating chamber; the catalytic combustion chamber is separated from the heating chamber and the catalytic combustion chamber is separated from the heat exchange chamber through a catalytic bed containing a catalyst; the catalytic bed is provided with air holes for heated waste gas to enter the catalytic combustion chamber from the heating chamber and enter the heat exchange chamber from the catalytic combustion chamber; and the top of the heat exchange chamber is provided with a discharge pipe.
Preferably, the catalytic combustion chamber, the heating chamber and the heat exchange chamber are arranged in the box body, the heating chamber is arranged below the heat exchange chamber, an intermediate plate is arranged between the heat exchange chamber and the heating chamber, the left side of the intermediate plate is connected with a catalytic bed, and the other three sides of the intermediate plate are connected with the inner wall of the box body; the catalytic combustion chamber is arranged on the left sides of the heating chamber and the heat exchange chamber, the fan is arranged on the right side of the box body, and an air inlet of the heat exchange tube is communicated with a waste gas pipeline outside the box body.
Preferably, a partition plate is arranged in the middle of the heat exchange chamber, the front side and the rear side of the partition plate are connected with the inner wall of the box body, a gap is arranged between the right side of the partition plate and the inner wall of the box body, the left side of the partition plate is connected with the top of the box body through an inclined transition plate, the front side and the rear side of the transition plate are connected with the inner wall of the box body, and the top of the catalytic bed is connected with the lower end of the transition plate; and the inlet of the discharge pipe is arranged on the left side of the heat exchange pipe.
Preferably, the heater is an electric heater disposed inside the heating chamber.
Preferably, the heater is a gas heater, the gas heater comprises a gas tank, a gas pipe, a combustor and a combustion-supporting device connected with the combustor, the combustion-supporting device is communicated with a waste gas pipeline of a fan outlet through an induced duct, a burner nozzle of the combustor is arranged inside the box body, the gas tank and the gas pipe are arranged outside the box body, and the gas pipe is communicated with the gas tank and the burner nozzle.
Preferably, the induced draft pipe of the combustion-supporting device is arranged outside the box body.
Preferably, the box, the fan and the heater are externally provided with a protective cover, and the top of the protective cover is provided with a lifting lug.
Preferably, the left side wall of the protective cover is provided with a viewing window, and the viewing window faces the catalytic bed.
Preferably, a branch pipe used for being connected with an inlet of the activated carbon tank is arranged on the side surface of the discharge pipe, and an inlet of the fan is communicated with an outlet of the activated carbon tank.
Preferably, the catalytic bed between the catalytic combustion chamber and the heating chamber is of a honeycomb structure with honeycomb channels arranged inside, and heat storage ceramic honeycomb bricks are paved on the catalytic bed towards two sides of the catalytic combustion chamber and the heating chamber.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the invention can be flexibly and conveniently transported to any place by placing the base loaded with the fan, the catalytic combustion chamber, the heating chamber and the heat exchange chamber on the transport vehicle; when the waste gas is purified, the waste gas is pumped to the heat exchange chamber by the fan to be preheated, then enters the heating chamber to be heated by the heater, the high-temperature waste gas reacts with the catalyst to generate carbon dioxide and water vapor when passing through the catalytic bed, and simultaneously exchanges heat with the waste gas in the heat exchange chamber to achieve the purpose of fully utilizing the waste heat, and finally the waste gas is discharged to the atmosphere through the discharge pipe.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a view illustrating an internal structure of a mobile thermal oxidizer according to an embodiment of the present invention;
FIG. 2 is a schematic external view of the mobile thermal oxidizer of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is a schematic flow diagram of the exhaust gases and combustion products of the present invention;
FIG. 5 is a schematic view showing the operation of an oxidizer according to an embodiment of the present invention;
in the figure: 1-a base; 2-a fan; 3-a catalytic combustor; 4-a heating chamber; 5-a heat exchange chamber; 6-heater, 61-gas tank, 62-gas pipe, 63-burner, 64-combustion-supporting device, 65-induced duct, 66-throat pipe and 67-burner nozzle; 7-a heat exchanger; 8-an exhaust gas conduit; 9-catalytic bed; 10-a discharge pipe; 11-a box body; 12-a middle plate; 13-a separator; 14-a transition plate; 15-a protective cover; 16-a lifting lug; 17-a viewing window; 18-branch pipe.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 4, the movable thermal oxidizer comprises a base 1 capable of being placed on a transport vehicle, wherein a fan 2, a catalytic combustion chamber 3, a heating chamber 4 and a heat exchange chamber 5 are arranged on the base 1, and the heating chamber 4 is provided with a heater 6; a heat exchanger 7 is arranged in the heat exchange chamber 5, a heat exchange tube air inlet of the heat exchanger 7 is communicated with a waste gas pipeline 8, the fan 2 is arranged on the waste gas pipeline 8, and a heat exchange tube air outlet of the heat exchanger 7 faces the heating chamber 4; the catalytic combustion chamber 3 is separated from the heating chamber 4 and the catalytic combustion chamber 3 is separated from the heat exchange chamber 5 by a catalytic bed 9 containing catalyst; the catalytic bed 9 is provided with air holes for heated waste gas to enter the catalytic combustion chamber 3 from the heating chamber 4 and enter the heat exchange chamber 5 from the catalytic combustion chamber 3; the top of the heat exchange chamber 5 is provided with a discharge pipe 10. The arrows in fig. 4 indicate the flow direction of the air flow in the equipment, the waste gas is pumped to the heat exchange chamber by the fan to be preheated, then enters the heating chamber to be heated by the heater, the high-temperature waste gas reacts with the catalyst to generate carbon dioxide and water vapor when passing through the catalytic bed, the heat exchange is carried out between the waste gas in the heat exchange chamber and the waste gas in the heat exchange tube, the waste heat is fully utilized by preheating the waste gas, and the carbon dioxide and the water vapor are finally discharged to the atmosphere through the discharge.
In a preferred embodiment of the present invention, as shown in fig. 1, said catalytic combustion chamber 3, heating chamber 4 and heat exchange chamber 5 are arranged in a box body 11, said heating chamber 4 is arranged below the heat exchange chamber 5, an intermediate plate 12 is arranged between said heat exchange chamber 5 and heating chamber 4, the left side of said intermediate plate 12 is connected to the catalytic bed 9, and the other three sides are connected to the inner wall of the box body 11; the catalytic combustion chamber 3 is arranged on the left side of the heating chamber 4 and the heat exchange chamber 5, the fan 2 is arranged on the right side of the box body 11, and an air inlet of the heat exchange tube is communicated with a waste gas pipeline 8 outside the box body 11. By adopting the structure, the overall layout of the equipment is more compact, the purpose of equipment miniaturization can be met, and the hoisting and the transportation are convenient. Wherein, the heat exchanger adopts a combined waste gas G-G heat exchanger. The low-temperature waste gas enters a heating chamber below the low-temperature waste gas after being preheated by a heat exchanger for heating, and then enters a catalytic combustion chamber for thermal oxidation.
As shown in fig. 1, the catalytic bed 9 between the catalytic combustion chamber 3 and the heating chamber 4 is a honeycomb structure with honeycomb channels inside, and heat-storage ceramic honeycomb bricks are laid on the catalytic bed 9 facing to both sides of the catalytic combustion chamber 3 and the heating chamber 4. By adopting the structure, the exhaust gas can be ensured to uniformly pass through the catalytic bed; meanwhile, the heat storage ceramic honeycomb bricks laid at the two ends of the catalytic bed can preserve heat of the catalytic bed, so that heat loss is avoided, and the exhaust gas is ensured to be fully contacted with the catalyst. The waste gas is catalyzed and oxidized or passes through a catalyst bed 9 between the catalytic combustion chamber 3 and the heat exchange chamber 5, so that the waste gas can be sufficiently catalyzed and oxidized, and the catalytic oxidation effect is ensured.
In addition, the upper end of a catalytic bed between the catalytic combustion chamber 3 and the heat exchange chamber 5 inclines towards one side of the heat exchange chamber, so that the area of the catalytic bed can be increased, the waste gas is further sufficiently catalyzed and oxidized, and the catalytic oxidation effect is improved.
In one embodiment of the present invention, as shown in fig. 1, a partition plate 13 is disposed in the middle of the heat exchange chamber 5, the front and rear sides of the partition plate 13 are connected to the inner wall of the tank 11, a gap is disposed between the right side of the partition plate 13 and the inner wall of the tank 11, the left side of the partition plate 13 is connected to the top of the tank 11 through an inclined transition plate 14, the front and rear sides of the transition plate 14 are connected to the inner wall of the tank 11, and the top of the catalytic bed 9 is connected to the lower end of the transition plate 14; the inlet of the discharge pipe 10 is provided at the left side of the heat exchange pipe. The catalytic combustion chamber is separated from the heating chamber and the heat exchange chamber by the transition plate and the catalytic bed, and the heat exchange tubes of the heat exchanger are separated from each other by the partition plate, so that waste gas combustion products are discharged in an S shape in the heat exchange chamber and exchange heat with waste gas in the heat exchange tubes for two times, and the purposes of waste heat recycling and waste gas preheating can be realized.
In one embodiment of the present invention, the heater 6 is an electric heater disposed inside the heating chamber 4. This technical scheme utilizes electric heater to heat waste gas.
In another embodiment of the present invention, as shown in fig. 1 and 3, the heater 6 is a gas heater, the gas heater includes a gas tank 61, a gas pipe 62, a burner 63, and a combustion supporter 64 connected to the burner 63, the combustion supporter 64 is communicated with the exhaust gas pipe 8 at the outlet of the blower 2 through an air guiding pipe 65, a burner of the burner 63 is disposed inside the box 11, the gas tank 61 and the gas pipe 62 are disposed outside the box 11, and the gas pipe 62 is communicated with the gas tank 61 and the burner. Wherein, the induced duct 65 of the combustion-supporting device 64 is arranged outside the box body 11. The inlet end of the burner is provided with an igniter, and the burner adopts an anti-diffusion burner, so that auxiliary protection can be provided; the gas tank is filled with natural gas or liquefied gas. The waste gas is heated by heat generated by gas combustion, and the heated waste gas enters the catalytic combustion chamber to react with the catalyst to obtain carbon dioxide and water vapor, so that the purpose of standard emission of the waste gas is realized.
For high-concentration waste gas, after the waste gas is ignited by the heater, the heat generated by catalytic oxidation of the waste gas in the catalytic combustion chamber is enough to meet the temperature required by combustion of the waste gas, and the heater can be turned off without wasting electric energy or fuel gas.
The working principle of the combustion-supporting device is shown in fig. 5, a throat 66 is arranged in the middle of the fuel gas pipe 62, the outlet of the induced air pipe 65 is arranged on the side wall of the throat 66, a burner 67 is arranged at the tail end of the fuel gas pipe 62, and a spiral air outlet is arranged in the burner 67. The structure adopts a Venturi tube mixing principle, when gas passes through the throat tube at high speed, partial vacuum is formed, the gas in the air guide pipe can be guided into the gas pipe, and the gas is mixed in the front cavity of the burner nozzle and then discharged through the spiral gas outlet. By utilizing the structure, the consumption of gas and air can be reduced, particularly the consumption of gas is reduced, and further the running cost is reduced. For the convenience of integral hoisting, as shown in fig. 2, a protective cover 15 is provided outside the box body 11, the fan 2 and the heater 6, and a lifting lug 16 is provided on the top of the protective cover 15. Adopt this structure convenience to carry out whole aversion, transportation, convenient and fast to equipment.
In order to facilitate the observation of the operating conditions inside the catalytic combustion chamber, as shown in fig. 2, the protective cover 15 is provided on its left side wall with an observation window 17, said window 7 facing the catalytic bed 9. The working state inside the catalytic bed 9 can be observed at any time through the observation window 7, and whether the tail gas purification is complete, whether the catalyst is blocked or not, whether the catalyst is damaged or not and the like can be found in time.
In one embodiment of the present invention, as shown in fig. 1 and 2, the side of the exhaust pipe 10 is provided with a branch pipe 18 for connecting with an inlet of an activated carbon canister, and the inlet of the blower 2 is communicated with an outlet of the activated carbon canister. Wherein, the fan 2 is a high-pressure vacuum blower which provides power for extracting waste gas; the fan is provided with a frequency converter, and the rotating speed of the fan can be controlled to reduce the consumption of electric power. High-temperature waste gas generates carbon dioxide and water vapor after catalytic combustion, and the high-temperature vapor heats air and then enters the activated carbon tank through the branch pipe, so that the saturated activated carbon can be desorbed, and the regeneration of the activated carbon is realized. And pumping the high-concentration organic waste gas desorbed from the activated carbon canister to a thermal oxidizer by a fan for thermal oxidation treatment, oxidizing the organic waste gas into carbon dioxide and water, evacuating, maintaining self thermal oxidation of one part of heat, and heating the air to desorb the activated carbon for use by the rest part of heat. Finally, the purposes of regeneration treatment of the activated carbon, heat recycling and standard emission of waste gas are achieved.
In addition, the burner is equipped with a pipe flame arrestor and a flame arrestor, which can be specifically tailored to the customer's requirements for explosion protection, providing dual protection against backfire risks. The heater can be controlled by a controller with a man-machine operation interface, parameters can be visually adjusted according to working conditions on site, the heater has functions of data recording and historical curve, and a standard data communication system can directly upload data to a plant DCS system, receive instructions and the like.
The working principle of the invention is as follows: the waste gas containing VOCs is pumped to the heat exchange chamber by a fan through a waste gas pipeline to be preheated for primary heating, then enters the heating chamber to further heat the waste gas to the ignition temperature required by catalytic combustion, the waste gas reaching the ignition point by heating passes through the catalyst bed layer, and is subjected to catalytic oxidation reaction under the action of the catalyst, so that the organic matters are finally decomposed into carbon dioxide and water. In the treatment method, due to the action of the catalyst, the ignition temperature of combustion of the VOCs waste gas is reduced to 300 ℃ which is greatly lower than the combustion temperature 670 ℃ of the direct combustion method, so that the energy consumption of the catalytic oxidation method is far lower than that of the direct combustion method. Meanwhile, under the action of the activity of the catalyst, high-temperature gas generated after reaction enters the heat exchanger again, heat transfer exchange is carried out between the high-temperature gas and low-temperature waste gas in the heat exchange pipe, the high-temperature gas is cooled, the low-temperature waste gas is heated and preheated, and finally clean tail gas is discharged into the atmosphere at a lower temperature, so that the double aims of energy conservation and standard emission are achieved.
In summary, the invention is a device which can be operated independently without any field installation, is convenient for treating temporary exhaust emission of oil refining and chemical plants, is especially suitable for treating volatile organic gases randomly emitted in petrifaction, oil refining, wharfs, storage tanks and the like, and achieves the aim of treating harmful volatile gases generated on site. The invention can remove the exhausted waste gas by high-temperature thermal oxidation with a removal rate of 99.99 percent and discharge the waste gas into the atmosphere after reaching the emission standard.
In the description above, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and thus the present invention is not limited to the specific embodiments disclosed above.
Claims (10)
1. A mobile thermal oxidizer, comprising: the device comprises a base capable of being placed on a transport vehicle, wherein a fan, a catalytic combustion chamber, a heating chamber and a heat exchange chamber are arranged on the base, and the heating chamber is provided with a heater; a heat exchanger is arranged in the heat exchange chamber, an air inlet of a heat exchange tube of the heat exchanger is communicated with a waste gas pipeline, the fan is arranged on the waste gas pipeline, and an air outlet of the heat exchange tube of the heat exchanger faces the heating chamber; the catalytic combustion chamber is separated from the heating chamber and the catalytic combustion chamber is separated from the heat exchange chamber through a catalytic bed containing a catalyst; the catalytic bed is provided with air holes for heated waste gas to enter the catalytic combustion chamber from the heating chamber and enter the heat exchange chamber from the catalytic combustion chamber; and the top of the heat exchange chamber is provided with a discharge pipe.
2. The mobile thermal oxidizer of claim 1, wherein: the catalytic combustion chamber, the heating chamber and the heat exchange chamber are arranged in the box body, the heating chamber is arranged below the heat exchange chamber, a middle plate is arranged between the heat exchange chamber and the heating chamber, the left side of the middle plate is connected with a catalytic bed, and the other three sides of the middle plate are connected with the inner wall of the box body; the catalytic combustion chamber is arranged on the left sides of the heating chamber and the heat exchange chamber, the fan is arranged on the right side of the box body, and an air inlet of the heat exchange tube is communicated with a waste gas pipeline outside the box body.
3. The mobile thermal oxidizer of claim 2, wherein: a partition plate is arranged in the middle of the heat exchange chamber, the front side and the rear side of the partition plate are connected with the inner wall of the box body, a gap is formed between the right side of the partition plate and the inner wall of the box body, the left side of the partition plate is connected with the top of the box body through an inclined transition plate, the front side and the rear side of the transition plate are connected with the inner wall of the box body, and the top of the catalytic bed is connected with the lower end of the transition plate; and the inlet of the discharge pipe is arranged on the left side of the heat exchange pipe.
4. The mobile thermal oxidizer of claim 1, wherein: the heater is an electric heater which is arranged in the heating chamber.
5. The mobile thermal oxidizer of claim 2, wherein: the heater is a gas heater, the gas heater comprises a gas tank, a gas pipe, a burner and a combustion-supporting device connected with the burner, the combustion-supporting device is communicated with a waste gas pipeline of a fan outlet through an induced duct, a burner of the burner is arranged inside the box body, the gas tank and the gas pipe are arranged outside the box body, and the gas pipe is communicated with the gas tank and the burner.
6. The mobile thermal oxidizer of claim 5, wherein: and an induced duct of the combustion-supporting device is arranged outside the box body.
7. The mobile thermal oxidizer of claim 1, wherein: the outside of box, fan and heater is equipped with the safety cover, the top of safety cover is equipped with the lug.
8. The mobile thermal oxidizer of claim 7, wherein: and the left side wall of the protective cover is provided with an observation window, and the observation window faces the catalytic bed.
9. The mobile thermal oxidizer of any of claims 1-8, wherein: and a branch pipe used for being connected with an inlet of the activated carbon tank is arranged on the side surface of the discharge pipe, and an inlet of the fan is communicated with an outlet of the activated carbon tank.
10. The mobile thermal oxidizer of claim 9, wherein: the catalytic bed between the catalytic combustion chamber and the heating chamber is of a honeycomb structure with honeycomb channels arranged inside, and heat storage ceramic honeycomb bricks are paved on the catalytic bed towards the catalytic combustion chamber and two sides of the heating chamber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993924.9A CN110686259B (en) | 2019-10-18 | 2019-10-18 | Movable thermal oxidizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910993924.9A CN110686259B (en) | 2019-10-18 | 2019-10-18 | Movable thermal oxidizer |
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| CN110686259A true CN110686259A (en) | 2020-01-14 |
| CN110686259B CN110686259B (en) | 2021-04-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161283A (en) * | 2020-09-25 | 2021-01-01 | 江苏优尚环境工程有限公司 | Catalytic oxidation furnace with preprocessing device |
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| CN112161283A (en) * | 2020-09-25 | 2021-01-01 | 江苏优尚环境工程有限公司 | Catalytic oxidation furnace with preprocessing device |
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| CN110686259B (en) | 2021-04-20 |
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Effective date of registration: 20230414 Address after: 050000 no.506, block a, kailaijin, 163 Jianshe South Street, Yuhua District, Shijiazhuang City, Hebei Province Patentee after: Shijiazhuang Colin oder Environmental Technology Co.,Ltd. Address before: 050000 no.506, block a, kailaijin, 163 Jianshe South Street, Yuhua District, Shijiazhuang City, Hebei Province Patentee before: Guo Yuanming |