CN201935540U - Indirect heating system for waste gas treatment on serial production line - Google Patents
Indirect heating system for waste gas treatment on serial production line Download PDFInfo
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- CN201935540U CN201935540U CN2010206728166U CN201020672816U CN201935540U CN 201935540 U CN201935540 U CN 201935540U CN 2010206728166 U CN2010206728166 U CN 2010206728166U CN 201020672816 U CN201020672816 U CN 201020672816U CN 201935540 U CN201935540 U CN 201935540U
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- Prior art keywords
- heat exchanger
- pipeline
- curing oven
- incinerator
- combustion chamber
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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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses an indirect heating system for waste gas treatment on a serial production line of strip steel spray coating, which comprises a curing oven on which three pairs of jet boxes and waste gas pipelines are mounted, wherein a combustion chamber is arranged on the jet box; hot air circulating pipelines are arranged among the jet boxes, the combustion chamber and the curing oven; primary and secondary heat exchangers are arranged on an incinerator; the waste pipelines are connected with the incinerator through the primary heat exchanger; and a main circulating pipeline is arranged on the curing oven and is connected with the combustion chamber through the secondary heat exchanger. For the indirect heating system for waste gas treatment on a serial production line, since organic solvents volatilized from coating when the incinerator combusts and cures are transferred to circulating hot air through a heat exchanger, then the hot air bakes the strip steel, meanwhile, the hot air inside the curing oven is pumped into the heat exchanger again for repeated thermal circulation, and two heat exchangers for collecting afterheat are arranged behind the heat exchanger, so that the rest heat can be used for the coating oven, the hot-air blowing and the pretreatment heating of liquid; therefore, energy-saving effect is optimized.
Description
Technical field
The utility model relates to the continuous spray-painting production line of a kind of steel band, especially relates to the heating system of band steel coating baking on the continuous spray-painting production line.
Background technology
The baking of band steel coating is divided into electric baking and gas circulation heated baking usually.In the circulation heated baking technology, as adopting the direct heated baking of fuel gas buring naked light, the refuse that the solvent gas burning back that impurities and paint volatilization produce in the combustion gas produces brings adverse effect can for the steel plate coating surface.And hot air circulation winding-up baking, the heat of gas combustion product is passed to the hot-air of circulation by heat exchange, again by hot-air baking band steel, and the contact of gas combustion product discord band steel, the coating quality of steel plate is protected.Adopt the curing oven of hot air circulation winding-up baking process generally to be divided into 3 districts, each district carries out hot air circulation separately, and will be with steel to be heated to desired METAL HEATING PROCESS peak value (PMT) according to the heating curves that Paint Factory provides, and keeps certain hardening time.
The effect of incinerator is the method that adopts burning, disposes the organic solvent that the band steel volatilizes from coating when solidifying, and heats the temperature that fresh air guarantees that curing oven is interior simultaneously, and the ignition temperature in the incinerator is 720 ℃.General System has only a heat exchanger except incinerator, and existing problems are exactly that heat does not make full use of.
The utility model content
The utility model purpose is to provide a kind of tinuous production exhaust-gas treatment indirect system of new structure, the organic solvent that utilizes gas-fired incinerator combustion zone steel when solidifying, from coating, to volatilize, the heat of gas combustion product is passed to the hot-air of circulation by heat exchange, again by hot-air baking band steel, hot-air is drawn back heat exchanger thermal cycle repeatedly once more in the curing oven simultaneously, the contact of gas combustion product discord band steel, the coating quality of steel plate is protected, behind heat exchanger, install simultaneously two heat exchangers of collecting waste heat again additional, being used for of heat of remainder is coated with stove, hot-air blowing and the heating of pre-treatment liquid make the energy-saving effect optimization.
The technical scheme that realizes the utility model purpose is:
A kind of tinuous production exhaust-gas treatment indirect system, comprise curing oven, the jet flow case, exhaust piping, the major cycle pipeline, the combustion chamber, gas pipeline, hot air circulate pipeline and incinerator, three pairs of jet flow casees that distribute up and down are installed on described curing oven, described curing oven is provided with exhaust piping, on every pair of jet flow case, dispose the combustion chamber, at described jet flow case, be provided with the hot air circulate pipeline between combustion chamber and the curing oven, first-class heat exchanger and secondary heat exchanger are installed on the described incinerator, described first-class heat exchanger and secondary heat exchanger communicate by pipeline, described exhaust piping links to each other with described incinerator by described first-class heat exchanger, on described incinerator and combustion chamber, be connected with gas pipeline, on described hot air circulate pipeline and exhaust piping, be provided with adjusting valve and blower fan, it is characterized in that: described curing oven is provided with described major cycle pipeline, described major cycle pipeline links to each other with described combustion chamber by described secondary heat exchanger, described secondary heat exchanger is provided with flue, also is provided with adjusting valve and blower fan on described major cycle pipeline and flue.
Be connected with three grades of heat exchangers by pipeline on described secondary heat exchanger, described three grades of heat exchangers are provided with the waste heat heat supply pipeline, and described flue is arranged on described three grades of heat exchangers.
Series connection one liquid heating pipe road on flue, described liquid heating pipe road links to each other with heat exchanger in the tank, and described liquid heating pipe road is provided with adjusting valve.
The utility model compared with prior art has following advantage:
1. general incinerator system exhaust gas fan is all extracted waste gas out and is burnt to incinerator, and the hot-air of fresh air after the secondary heat exchanger heat exchange delivered to the combustion chamber.But because the whole solidification process of coating in stove is through 3 sections, the physical dryness process of beginning, it is the solvent evaporator section, centre portion is the dry changeover portion of physical-chemical, be that solvent complete evaporation and organic matter solidify, be the chemical seasoning section at last, promptly organic matter produces polymerization or crosslinked when reaching a certain temperature.Be approximately 90% so it is generally acknowledged solvent at preceding two sections evaporation capacity, only extract the curing oven leading portion so change exhaust gas fan here into, back segment is drawn back secondary heat exchanger by the major cycle pipeline and is circulated to the combustion chamber, and it is less to replenish resh air requirement like this, energy consumption is less, reaches the purpose of energy-saving and emission-reduction.
2. gas combustion product discord band steel contact, the coating quality of steel plate is protected.
3. be connected with three grades of heat exchangers by pipeline on the secondary heat exchanger, three grades of heat exchangers are provided with the waste heat heat supply pipeline, and usefulness such as the hot-air that this pipeline produced can be coated with to steel bandization, purging make full use of waste heat.
4. series connection one liquid heating pipe road on flue, the heat exchanger tube of carrying the hot flue gas come to be transported in the tank curing oven burned waste gas system heats the pretreatment liquid body and function, further cuts down the consumption of energy.
Description of drawings
Fig. 1 is the structural representation of tinuous production exhaust-gas treatment indirect described in the utility model system
1. curing oven 2. jet flow casees 3. adjusting valves 4. exhaust pipings 5. major cycle pipelines 6. hot air circulate pipelines
7. combustion chamber 8. blower fans 9. gas pipelines 10. incinerators 11. first-class heat exchanger 12. secondary heat exchangers
13. 14. 3 grades of heat exchangers of waste heat heat supply pipeline, 15. flues, 16. liquid heating pipe roads, 17. heat exchangers, 18. tanks
The specific embodiment
Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model, and all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by every claim.
As can be seen from Figure 1, a kind of tinuous production exhaust-gas treatment indirect system, comprise curing oven 1, jet flow case 2, exhaust piping 4, major cycle pipeline 5, combustion chamber 7, gas pipeline 9, hot air circulate pipeline 6 and incinerator 10, three pairs of jet flow casees 2 that distribute up and down are installed on described curing oven 1, described curing oven 1 is provided with exhaust piping 4, on every pair of jet flow case 2, dispose combustion chamber 7, at described jet flow case 2, be provided with hot air circulate pipeline 6 between combustion chamber 7 and the curing oven 1, first-class heat exchanger 11 and secondary heat exchanger 12 are installed on the described incinerator 10, described first-class heat exchanger 11 and secondary heat exchanger 12 communicate by pipeline, described exhaust piping 4 links to each other with described incinerator 10 by described first-class heat exchanger 11, on described incinerator 10 and combustion chamber 7, be connected with gas pipeline 9, on described hot air circulate pipeline 6 and exhaust piping 4, be provided with adjusting valve 3 and blower fan 8, described curing oven 1 is provided with described major cycle pipeline 5, described major cycle pipeline 5 links to each other with described combustion chamber 7 by described secondary heat exchanger 12, on described secondary heat exchanger 11, be connected with three grades of heat exchangers 14 by pipeline, described three grades of heat exchangers 14 are provided with waste heat heat supply pipeline 13, and described flue 15 is arranged on described three grades of heat exchangers 14.On described major cycle pipeline 5 and flue 15, also be provided with adjusting valve 3 and blower fan 8.Series connection one liquid heating pipe road 16 on flue 15, described liquid heating pipe road 16 links to each other with heat exchanger 17 in the tank 18, and described liquid heating pipe road 16 is provided with adjusting valve 3.
As can be seen from Figure 1 the waste gas that comes out from curing oven 1 front end enters incinerator 10 burning by the circulatory system, and the first-class heat exchanger 11 through incinerator 10 before burning is carried out heat exchange, and temperature is improved, then in the burner hearth internal combustion of incinerator 10.The organic solvent that produces in the solidification process is burned in incinerator 10, to reach the desired discharge standard of environmental protection.Gas after the burning is delivered to first-class heat exchanger 11, secondary heat exchanger 12 and three grades of heat exchangers 14, and waste gas after burning is by repeatedly emitting after the heat exchange.
After the air that comes out from curing oven 1 rear end is heated to uniform temperature by secondary heat exchanger 12, sends into combustion chamber 7 and enter in the curing oven 1, replenish the calorific value consumption in the curing oven 1, the paint on the band steel is cured.Enter hot-air in the curing oven 1 in coating material solidified, mix with the organic solvent gas that evaporates in the coating, leading portion is pumped to incinerator 10 internal combustion, and back segment circulates repeatedly by blower fan 8.
Fresh air is given hot-air blowing, is changed and to be coated with oven dry etc. by blower fan 8 after three grades of heat exchanger 14 heat exchange.Flue 15 is given the heating of the liquid in the pre-treatment tank 18 by liquid heating pipe road 16 and heat exchanger 17.
Because the waste gas that comes out from curing oven 1 is heated before burning, contained organic solvent also can be used as a kind of fuel in the waste gas simultaneously, thereby has reduced the fuel consumption of incinerator 10, has reduced energy consumption.
Claims (3)
1. tinuous production exhaust-gas treatment indirect system, comprise curing oven (1), jet flow case (2), exhaust piping (4), major cycle pipeline (5), combustion chamber (7), gas pipeline (9), hot air circulate pipeline (6) and incinerator (10), three pairs of jet flow casees (2) that distribute up and down are installed on described curing oven (1), described curing oven (1) is provided with exhaust piping (4), on every pair of jet flow case (2), dispose combustion chamber (7), at described jet flow case (2), be provided with hot air circulate pipeline (6) between combustion chamber (7) and the curing oven (1), first-class heat exchanger (11) and secondary heat exchanger (12) are installed on the described incinerator (10), described first-class heat exchanger (11) and secondary heat exchanger (12) communicate by pipeline, described exhaust piping (4) links to each other with described incinerator (10) by described first-class heat exchanger (11), on described incinerator (10) and combustion chamber (7), be connected with gas pipeline (9), on described hot air circulate pipeline (6) and exhaust piping (4), be provided with adjusting valve (3) and blower fan (8), it is characterized in that: described curing oven (1) is provided with described major cycle pipeline (5), described major cycle pipeline (5) links to each other with described combustion chamber (7) by described secondary heat exchanger (12), described secondary heat exchanger (12) is provided with flue (15), also is provided with adjusting valve (3) and blower fan (8) on described major cycle pipeline (5) and flue (15).
2. a kind of tinuous production exhaust-gas treatment indirect according to claim 1 system, it is characterized in that: go up at described secondary heat exchanger (11) and be connected with three grades of heat exchangers (14) by pipeline, described three grades of heat exchangers (14) are provided with waste heat heat supply pipeline (13), and described flue (15) is arranged on described three grades of heat exchangers (14).
3. a kind of tinuous production exhaust-gas treatment indirect according to claim 1 system, it is characterized in that: go up series connection one liquid heating pipe road (16) at flue (15), described liquid heating pipe road (16) links to each other with heat exchanger (17) in the tank (18), and described liquid heating pipe road (16) is provided with adjusting valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206728166U CN201935540U (en) | 2010-12-21 | 2010-12-21 | Indirect heating system for waste gas treatment on serial production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206728166U CN201935540U (en) | 2010-12-21 | 2010-12-21 | Indirect heating system for waste gas treatment on serial production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201935540U true CN201935540U (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206728166U Expired - Fee Related CN201935540U (en) | 2010-12-21 | 2010-12-21 | Indirect heating system for waste gas treatment on serial production line |
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| CN (1) | CN201935540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267411A (en) * | 2013-05-22 | 2013-08-28 | 浙江光炎节能环保科技股份有限公司 | Circulation thickening waste gas treating system |
| CN107131508A (en) * | 2017-07-19 | 2017-09-05 | 山东泽轩环保科技有限公司 | A kind of equipment and application method of processing VOCs waste gas |
-
2010
- 2010-12-21 CN CN2010206728166U patent/CN201935540U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267411A (en) * | 2013-05-22 | 2013-08-28 | 浙江光炎节能环保科技股份有限公司 | Circulation thickening waste gas treating system |
| CN103267411B (en) * | 2013-05-22 | 2015-01-28 | 浙江光炎节能环保科技股份有限公司 | Circulation thickening waste gas treating system |
| CN107131508A (en) * | 2017-07-19 | 2017-09-05 | 山东泽轩环保科技有限公司 | A kind of equipment and application method of processing VOCs waste gas |
| CN107131508B (en) * | 2017-07-19 | 2023-06-02 | 山东泽轩环保科技有限公司 | Equipment for treating VOCs waste gas and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Kaiteer Industrial Furnace Co., Ltd. Assignor: Geng Kai Contract record no.: 2011320000710 Denomination of utility model: Indirect heating system for waste gas treatment on serial production line Granted publication date: 20110817 License type: Exclusive License Record date: 20110512 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20131221 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jiangsu Kaiteer Industrial Furnace Co., Ltd. Assignor: Geng Kai Contract record no.: 2011320000710 Date of cancellation: 20151225 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |