CN111729466A - Decoration firing furnace VOCs processing system - Google Patents
Decoration firing furnace VOCs processing system Download PDFInfo
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- CN111729466A CN111729466A CN202010540304.2A CN202010540304A CN111729466A CN 111729466 A CN111729466 A CN 111729466A CN 202010540304 A CN202010540304 A CN 202010540304A CN 111729466 A CN111729466 A CN 111729466A
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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
- B01D53/04—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 stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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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
- B01D53/04—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 stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0438—Cooling or heating systems
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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
- B01D53/04—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 stationary adsorbents
- B01D53/0454—Controlling adsorption
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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
- B01D53/14—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 absorption
- B01D53/1487—Removing organic compounds
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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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/34—Specific shapes
- B01D2253/342—Monoliths
- B01D2253/3425—Honeycomb shape
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention provides a VOCs treatment system of a decoration firing furnace, which comprises the following modules: the air suction cover is used for collecting the emitted gas; the collecting air pipe is used for communicating the air suction cover, the air outlet of the equipment and the spraying box; the spraying box is used for pressurizing by using a circulating pump, fully atomizing the spraying nozzle in the box body, and cooling, dust settling and deoiling the entering high-temperature gas; the exhaust fan is used for pumping the gas collected by the adsorption cover and the gas exhausted by the equipment into the spraying box through the exhaust fan and then sending the gas into the activated carbon adsorption box for adsorption and emission; the thermocouple is arranged on the air pipe between the exhaust fan and the activated carbon adsorption tank and is used for monitoring the gas temperature, monitoring the gas temperature entering the adsorption tank in real time and ensuring the safe and effective operation of the system; and the activated carbon adsorption tank is used for conveying the gas subjected to temperature reduction, dust fall and deoiling at the front end into water-resistant honeycomb activated carbon filled in the tank through an exhaust fan for adsorption, so that the VOC gas reaches the safe emission standard.
Description
Technical Field
The invention particularly relates to a VOCs treatment system of a decoration firing furnace.
Background
The urban industrialization brings economic prosperity to people, simultaneously, the environmental pollution problem comes along, and the atmospheric pollution, the water pollution, the noise pollution and the like do not harm our lives. At present, the environment protection situation is more and more severe, and the national supervision and control force on the environment protection is also more and more great. In recent years, environmental protection departments perform environmental behavior credit rating evaluation and information disclosure work on enterprises. Once the enterprise is subjected to law enforcement, the credit rating is also regulated down, and the enterprise loan is cancelled seriously. Therefore, as a pollutant emission source for production and processing, how to carry out environmental protection treatment work is very important.
The glass bottle for processing and producing the label is baked in an oven, the diluent, the sealing oil and the varnish in the interlayer of the label stained paper volatilize odor in the heating and curing process, and the toxic benzene organic waste gas diffuses in a workshop, can harm the health of staff, and can pollute the surrounding environment after being discharged out of the workshop. The design is collected waste gas through the cover that induced drafts and is concentrated send people's water smoke formula condensation processing case to cool off filtration treatment (get rid of waste gas temperature and waste gas granule and strain the grease with the waste gas cooling), and the rethread inhales the exhaust fan and send people's secondary treatment special type honeycomb formula activated carbon box with filtering waste gas and adsorb the purification, discharges after reaching national standard.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a VOCs treatment system of a decoration firing furnace, which can well solve the problems.
In order to meet the requirements, the technical scheme adopted by the invention is as follows: the utility model provides a decorating firing stove VOCs processing system, this decorating firing stove VOCs processing system includes following module:
the air suction covers are arranged at two ends of the bottle inlet and the bottle outlet of the oven and are used for collecting the emitted gas;
the collecting air pipe is used for communicating the air suction cover and the exhaust port of the equipment with the spraying box, collecting the air collected by the air suction cover and the exhaust port of the equipment through the pipe and then sending the air to the spraying box;
the spraying box is used for pressurizing by using a circulating pump, fully atomizing the spraying nozzle in the box body, and cooling, dust settling and deoiling the entering high-temperature gas;
the exhaust fan is used for pumping the gas collected by the adsorption cover and the gas exhausted by the equipment into the spraying box through the exhaust fan and then sending the gas into the activated carbon adsorption box for adsorption and emission;
the thermocouple is arranged on the air pipe between the exhaust fan and the activated carbon adsorption tank and is used for monitoring the gas temperature, monitoring the gas temperature entering the adsorption tank in real time and ensuring the safe and effective operation of the system;
and the activated carbon adsorption tank is used for conveying the gas subjected to temperature reduction, dust fall and deoiling at the front end into water-resistant honeycomb activated carbon filled in the tank through an exhaust fan for adsorption, so that the VOC gas reaches the safe emission standard.
The VOCs treatment system of the decoration firing furnace has the following advantages:
1. the adsorption efficiency is up to 90%, the adsorption capacity is large, and the application range is wide;
2. the maintenance is convenient, and the requirement of excessive manpower input is not required;
3. the adsorption area is large, the selective adsorption is good, and various mixed waste gases can be treated simultaneously;
4. the activated carbon has the characteristics of wide source, low price and the like;
5. the system has the advantages of simple operation, energy conservation and safety.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 schematically shows a schematic structural diagram of a decoration firing furnace VOCs processing system according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the following description, references to "one embodiment," "an embodiment," "one example," "an example," etc., indicate that the embodiment or example so described may include a particular feature, structure, characteristic, property, element, or limitation, but every embodiment or example does not necessarily include the particular feature, structure, characteristic, property, element, or limitation. Moreover, repeated use of the phrase "in accordance with an embodiment of the present application" although it may possibly refer to the same embodiment, does not necessarily refer to the same embodiment.
Certain features that are well known to those skilled in the art have been omitted from the following description for the sake of simplicity.
According to an embodiment of the present application, there is provided a decoration firing furnace VOCs treatment system, as shown in FIG. 1, including the following modules:
the air suction covers are arranged at two ends of the bottle inlet and the bottle outlet of the oven and are used for collecting the emitted gas;
the collecting air pipe is used for communicating the air suction cover and the exhaust port of the equipment with the spraying box, collecting the air collected by the air suction cover and the exhaust port of the equipment through the pipe and then sending the air to the spraying box;
the spraying box is used for pressurizing by using a circulating pump, fully atomizing the spraying nozzle in the box body, and cooling, dust settling and deoiling the entering high-temperature gas;
the exhaust fan is used for pumping the gas collected by the adsorption cover and the gas exhausted by the equipment into the spraying box through the exhaust fan and then sending the gas into the activated carbon adsorption box for adsorption and emission;
the thermocouple is arranged on the air pipe between the exhaust fan and the activated carbon adsorption tank and is used for monitoring the gas temperature, monitoring the gas temperature entering the adsorption tank in real time and ensuring the safe and effective operation of the system;
and the activated carbon adsorption tank is used for conveying the gas subjected to temperature reduction, dust fall and deoiling at the front end into water-resistant honeycomb activated carbon filled in the tank through an exhaust fan for adsorption, so that the VOC gas reaches the safe emission standard.
According to an embodiment of the application, the system for treating VOCs of the decoration firing furnace further comprises a control module, wherein the control module adopts variable frequency speed regulation to control the exhaust fan.
According to one embodiment of the application, the air suction hood of the VOCs treatment system of the decoration firing furnace is in a shape of a cuboid cone.
According to one embodiment of the application, the spraying box of the VOCs treatment system of the decoration firing furnace comprises a cooling circulating water pump and four DN15 spiral spraying nozzles.
According to an embodiment of the application, when the processing system of the decoration firing furnace VOCs is in operation, the processed and produced decoration firing glass bottles flow into the oven to be baked, all diluents, cover oil and varnish in interlayer of the decoration paper in the heating and curing process of the bottle labeling decoration paper volatilize odor, and the toxic benzene series organic waste gas is diffused in a workshop to hurt the health of staff and cause pollution to the surrounding environment after being discharged out of the workshop. The design is collected waste gas through the cover that induced drafts and is concentrated send people's water smoke formula condensation processing case to cool off filtration treatment (get rid of waste gas temperature and waste gas granule and strain the grease with the waste gas cooling), and the rethread inhales the exhaust fan and send people's secondary treatment special type honeycomb formula activated carbon box with filtering waste gas and adsorb the purification, discharges after reaching national standard.
According to an embodiment of the application, the specific technical scheme of the VOCs treatment system of the decoration firing furnace is as follows: 1. centralized collection is carried out through a self-made air suction cover (ensuring all-directional collection); 2. the mixed waste gas is subjected to comprehensive cooling and filtering treatment by a first-stage self-refrigerating spray box (cooling liquid can be recycled); 3. the organic waste gas is sent to the second stage by a powerful pumping centrifugal fan (the air quantity can be adjusted by a control system) and is adsorbed and purified by special honeycomb activated carbon. The applicable concentration of the system is as follows: 0-300 mg/m 3; the air volume is applicable: 1000-100000 m 3/h; treatment efficiency: 80 to 90 percent.
According to one embodiment of the application, the invention principle of the VOCs treatment system of the decoration firing furnace is as follows: the method is characterized in that organic mixed waste gas is collected and concentrated by a self-made air suction hood and is safely conveyed into a first-stage cold spraying spray treatment box through pipelines to be cooled, the waste gas is fully sprayed and cooled, sealing oil and larger organic particles in the mixed waste gas are filtered, the organic waste gas after the first-stage treatment is forcibly conveyed into special honeycomb type activated carbon by a centrifugal fan to carry out adsorption purification treatment on the organic waste gas (the organic waste gas is also called VOCs waste gas, namely volatile organic compounds, and the main components of the organic waste gas comprise hydrocarbons, halogenated hydrocarbons, oxygen hydrocarbons and nitrogen hydrocarbons, including benzene series, organic chlorides, Freon series, organic ketones, amines, alcohols, ethers, esters, acids, petroleum hydrocarbon compounds and the like). The method utilizes the high-strength adsorption force of the active carbon, combines the action of a fan to adsorb organic waste gas molecules, and has good adsorption effect on the waste gas of organic solvents such as benzene, alcohol, ketone, ester, gasoline and the like.
According to an embodiment of the application, this decorating firing stove VOCs processing system's induced draft cover horn mouth carries out waste gas collection for waste gas collection entry, the interface is connected with the tuber pipe and will collects waste gas and carry to one-level cold spraying spray tank, the spray tank embeds the two-stage and sprays, set up a plurality of shower heads respectively and carry out spray treatment to waste gas, the cover oil in the waste gas that will mix, great organic granule carries out filtration treatment, spray tank's effect not only can reduce the temperature of oven waste gas, make the abundant cooling of high temperature waste gas, can also effectively degrade the organic granule in the waste gas. The organic waste gas after the first-stage treatment is forcedly sent into special honeycomb type active carbon by a centrifugal fan to carry out adsorption purification treatment on the organic waste gas (the organic waste gas is also called VOCs waste gas, namely volatile organic compounds, and the main components of the organic waste gas comprise hydrocarbons, halogenated hydrocarbons, oxygen hydrocarbon and nitrogen hydrocarbon, and the organic waste gas comprises benzene series, organic chlorides, freon series, organic ketones, amines, alcohols, ethers, esters, acids, petroleum hydrocarbon compounds and the like). The method utilizes the high-strength adsorption force of the active carbon, combines the action of a fan to adsorb organic waste gas molecules, and has good adsorption effect on the waste gas of organic solvents such as benzene, alcohol, ketone, ester, gasoline and the like.
According to one embodiment of the application, the VOCs treatment system of the decoration firing furnace is mainly used for baking a white glass bottle semi-finished product after labeling and marking the bottle body, and the process of finally converting the product into a finished product is completed. In the baking process, certain Volatile Organic Compound (VOC) gas is generated, and the generated gas is not effectively collected and treated by the decoration firing furnace equipment, so that the emitted volatile gas forms a dispersed state, and harm is brought to the workshop environment and the physical health of staff. In order to change the current situation, the Volatile Organic Compound (VOC) generated by the decoration firing furnace is treated, the power consumption of the oven is controlled to the maximum extent, the production cost is reduced, comprehensive operation data such as the productivity, the process temperature, (high temperature, low temperature) and the like are counted in advance during the actual production of the decoration firing furnace, the volatile gas generated every minute is about 100-2000m3/h, and the treatment scheme is determined according to the data.
Determining a treatment process according to the current situation of the production process of the decoration firing furnace and the situation that the generated volatile gas amount is small: collecting, cooling, deoiling (dust), temperature control, air draft, adsorption and discharging.
Two collecting covers are formulated at the bottle inlet and the bottle outlet of the decoration firing furnace, and the shapes are as follows: the rectangle is conical.
The method is characterized in that two collecting covers are installed at the inlet and outlet bottle mouth ends of the decoration firing furnace, scattered gas is collected, meanwhile, an exhaust pipe of the decoration firing furnace is combined and connected with a main pipeline to enter a spraying box, the gas is sent into an activated carbon adsorption box through an exhaust fan after the temperature reduction, dust fall and deoiling (dust) of high-temperature gas reach the optimum temperature adsorption effect (40-50 degrees) of activated carbon, and the gas is finally discharged up to the standard after being adsorbed by honeycomb activated carbon filled in the box.
Device configuration and function: the device comprises an air suction cover, a collecting air pipe, a spraying box, an exhaust fan, a thermocouple for measuring temperature, an activated carbon adsorption box and a control mode.
An air suction cover: shape: a cuboid cone with the size of 1700 x 500 x 400mm and the material: welding a 2mm carbon steel plate; mainly installed at the two ends of the bottle inlet and outlet of the oven to collect the emitted gas.
Wind pipe collection: the shape is circular, the size diameter is 250mm, and the material is as follows: welding a 2mm carbon steel plate; mainly is that the air suction cover arranged at the bottle inlet and the bottle outlet and the air collected by the air outlet of the device are collected by the manifold and then sent to the spraying box.
A spraying box: the device is characterized by being strong in shape, rectangular, 2000 x 1000 in size, made of 6mm carbon steel plates through welding, mainly provided with 1 cooling circulating water pump and pipeline and 4 DN15 spiral spray nozzles, a certain amount of cooling water is filled in a box body, the box body is pressurized by a circulating pump, the spray nozzles are fully atomized in the box body, the entering high-temperature gas is cooled, dusted and deoiled, the high-temperature gas is finally cooled to the optimal adsorption temperature (40-60 ℃) of the activated carbon to achieve the optimal treatment effect, meanwhile, the safety (no ignition point) of the activated carbon is ensured, and water for cooling is circulated, so that water is saved to the maximum extent.
An exhaust fan: the type Y5-47/3.15, the power 1.5KW, the rotating speed 2750 per minute, the wind pressure 1120-2112 m/h, and the full pressure 745-520Pa, wherein the gas collected by the adsorption hood and the gas exhausted by the equipment are mainly pumped into the spraying box through the exhaust fan and then are sent into the activated carbon adsorption box for adsorption and discharge.
Thermocouple: the model is k graduation, the temperature measuring range of WRN-230 is 0-1300 ℃, the temperature of gas is mainly monitored, the thermocouple is arranged on the air pipe between the exhaust fan and the activated carbon adsorption tank, the temperature of the gas entering the adsorption tank is monitored in real time, and the safe and effective operation of the system is ensured.
Activated carbon adsorption tank: the specification is 1200 x 1000mm, the material 6mm carbon steel plate is welded, the box is filled with water-resistant honeycomb activated carbon 100 x 100mm and about 0.43 cube, and the gas with the front end subjected to temperature reduction, dust fall and deoiling is sent to the water-resistant honeycomb activated carbon filled in the box through an exhaust fan to be adsorbed, so that the VOC gas reaches the safe emission standard.
The control mode is as follows: the model 1.5KW mainly adopts variable frequency speed regulation to control the exhaust fan, the control mode can realize stepless speed regulation, and the control can effectively control according to the capacity of the decoration firing furnace and the amount of waste gas generated, thereby realizing the effect of saving energy consumption to the maximum extent.
The above-mentioned embodiments only show some embodiments of the present invention, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the claims.
Claims (4)
1. The VOCs treatment system of the decoration firing furnace is characterized by comprising the following modules:
the air suction covers are arranged at two ends of the bottle inlet and the bottle outlet of the oven and are used for collecting the emitted gas;
the collecting air pipe is used for communicating the air suction cover and the exhaust port of the equipment with the spraying box, collecting the air collected by the air suction cover and the exhaust port of the equipment through the pipe and then sending the air to the spraying box;
the spraying box is used for pressurizing by using a circulating pump, fully atomizing the spraying nozzle in the box body, and cooling, dust settling and deoiling the entering high-temperature gas;
the exhaust fan is used for pumping the gas collected by the adsorption cover and the gas exhausted by the equipment into the spraying box through the exhaust fan and then sending the gas into the activated carbon adsorption box for adsorption and emission;
the thermocouple is arranged on the air pipe between the exhaust fan and the activated carbon adsorption tank and is used for monitoring the gas temperature, monitoring the gas temperature entering the adsorption tank in real time and ensuring the safe and effective operation of the system;
and the activated carbon adsorption tank is used for conveying the gas subjected to temperature reduction, dust fall and deoiling at the front end into water-resistant honeycomb activated carbon filled in the tank through an exhaust fan for adsorption, so that the VOC gas reaches the safe emission standard.
2. The decoration firing furnace VOCs processing system according to claim 1, wherein: the exhaust fan control system is characterized by further comprising a control module, wherein the control module controls the exhaust fan by adopting variable frequency speed regulation.
3. The decoration firing furnace VOCs processing system according to claim 1, wherein: the air suction cover is in a cuboid conical shape.
4. The decoration firing furnace VOCs processing system according to claim 1, wherein: the spray box comprises a cooling circulating water pump and four DN15 spiral spray nozzles.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010540304.2A CN111729466A (en) | 2020-06-15 | 2020-06-15 | Decoration firing furnace VOCs processing system |
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| CN202010540304.2A CN111729466A (en) | 2020-06-15 | 2020-06-15 | Decoration firing furnace VOCs processing system |
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| CN111729466A true CN111729466A (en) | 2020-10-02 |
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| CN205925397U (en) * | 2016-07-15 | 2017-02-08 | 金华万得福日用品股份有限公司 | Centralized exhaust treatment device |
| CN205886486U (en) * | 2016-07-22 | 2017-01-18 | 杭州才联环保科技有限公司 | Spray paint waste gas treatment system |
| CN206304531U (en) * | 2016-11-09 | 2017-07-07 | 雅威包装（昆山）有限公司 | A kind of emission-control equipment of thin film oven |
| CN207153398U (en) * | 2017-08-29 | 2018-03-30 | 北京普惠实华科技有限公司 | A kind of charcoal absorption gas recovery system for oil |
| CN107551788A (en) * | 2017-09-27 | 2018-01-09 | 湖州南丰机械制造有限公司 | A kind of exhaust treatment system for workshop of casting |
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Application publication date: 20201002 |