CN201621709U - Color-coated steel plate coating solidifying system with incineration furnace and multi-stage heat exchanger - Google Patents
Color-coated steel plate coating solidifying system with incineration furnace and multi-stage heat exchanger Download PDFInfo
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- CN201621709U CN201621709U CN2010201166800U CN201020116680U CN201621709U CN 201621709 U CN201621709 U CN 201621709U CN 2010201166800 U CN2010201166800 U CN 2010201166800U CN 201020116680 U CN201020116680 U CN 201020116680U CN 201621709 U CN201621709 U CN 201621709U
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Abstract
The utility model relates to a color-coated steel plate coating solidifying system, in particular to the color-coated steel plate coating solidifying system with an incineration furnace and a multi-stage heat exchanger, which is mainly used for solving the technical problems that organic solvent in coating is volatilized in the furnace in the prior art, and leads to explosion when achieving a certain concentration, thereby being necessary to constantly exhaust waste gas containing the organic solvent from a chimney and simultaneously fill in a large amount of cold air, further leading to the waste of energy, simultaneously discharging a large number of pollutants and the like. The color-coated steel plate coating solidifying system comprises a burner, wherein the burner is connected with a waste gas heat exchanger through the incineration furnace, the waste gas heat exchanger is communicated with the burner, the waste gas heat exchanger is connected with a solidifying furnace through a pipeline, an air outlet of the waste gas heat exchanger is sequentially communicated with a first-stage air heat exchanger and a second-stage air heat exchanger, the first-stage air heat exchanger is communicated with the solidifying furnace, the second-stage air heat exchanger is communicated with a sweeping exhaust outlet and a chemical coating drying furnace, and the air outlet of the second-stage air heat exchanger is connected with an exhaust outlet through an induced draft fan.
Description
Technical field
The utility model relates to a kind of color coated steel sheet paint solidification system, especially relates to a kind of to having the isostructural improvement of color coated steel sheet paint solidification system of incinerator and multi-stage heat exchanger.
Background technology
Continuous multicolor coating unit main production is: zinc-plated coil of strip (coated organic coating) → colored coil of strip, critical process are that the coating that is coated in surface of steel plate is cured in curing oven.Chinese patent discloses a kind of hot rolled plate color coating moulding quantity-produced method and apparatus (Granted publication number: CN101249606A), it is to be raw material plate with the hot rolled steel plate, steel band is handled and to be sheared from the uncoiling to the moulding that all processes is all online to be finished, collection uncoiling, leveling, acid pickling and rust removing, leveling, priming paint roller coat, curing oven dry, roller moulding, deburring, cutting to length, buttress material are one, be used for the production of color coating profiled sheeting full continuous automatic, may further comprise the steps: a: hot rolled strip enters the welding stage, with hot rolled strip take the lead, magnetic tape trailer welds together; B: the steel tape after welding enters acid pickling and rust removing, baking stage, and the acid liquid reaction in the iron scale of steel strip surface and the descaling bath is removed the iron scale of steel strip surface, and steel band goes out descaling bath, enters the hot-air seasoning stage, removes the steel strip surface redundant moisture; C: the steel band after the acid pickling and rust removing oven dry enters roller coat, curing and air-cooled stage, steel band after pickling, the oven dry is sent into roll coater, be coated with antirust paint in steel strip surface, send into paint curing oven then, steel band after the japanning is cured oven dry, to carrying out the cold wind purging, reduce the temperature of steel band through solidifying air-dry steel band with uniform temperature; D: through roller coat, curing and air-cooled after steel band enter the roller formative stage, steel band is sent into ROLLERS FORMERS carries out the roller moulding; Make steel plate have certain waveform; E: the steel band after the roller moulding enters to be cut off and the stacking stage, and the waveform steel band after the roller moulding enters flying shear, with steel plate on request length cut off, highly carry out stacking on request.Its equipment comprises uncoiler, cutter, converges pinch roll, level(l)ing machine, welding machine, vertical loop, turn to centring roll, pickling, oven dry section, straightening machine, roll leveller, roll coater, curing oven, incinerator, cold wind purging, horizontal loop, cut cut, equipment such as coiling machine, kink, ROLLERS FORMERS, circle shear, beveler, flying shear, two stackings.But this paint solidification stove adopts the combustion chamber to add directly to be delivered to curing oven behind the hot-air coating coil of strip is toasted.Because the color coating coil of strip mostly is continuous production at present, line speed is generally 40-100m/min, and the curing of organic coating steel plate needs about 225 ℃ temperature, and required heat energy is supplied with by fuel gas buring by the combustion chamber in this process.Organic solvent in the coating volatilizees in stove, but can not stop in a large number, otherwise reaching certain concentration promptly can set off an explosion, this waste gas that just needs constantly to contain organic solvent is discharged from chimney, charge into a large amount of cold airs simultaneously, so both cause energy waste, discharged a large amount of pollutants simultaneously.
Summary of the invention
The utility model technical issues that need to address provide a kind of color coated steel sheet paint solidification system that has incinerator and multi-stage heat exchanger, it mainly is to solve existing in prior technology to adopt the combustion chamber to add directly to deliver to curing oven behind the hot-air coating coil of strip is toasted, organic solvent in the coating volatilizees in stove, reaching certain concentration promptly can set off an explosion, must constantly the waste gas that contains organic solvent be discharged from chimney, charge into a large amount of cold airs simultaneously, both cause energy waste, discharged the technical problem of a large amount of pollutants etc. simultaneously.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
The color coated steel sheet paint solidification system that has incinerator and multi-stage heat exchanger of the present utility model, comprise burner, it is characterized in that described burner is connected with exhaust gas heat exchanger by incinerator, exhaust gas heat exchanger is communicated with burner by flue gas leading, exhaust gas heat exchanger is connected with curing oven by pipeline, the air outlet place of exhaust gas heat exchanger is communicated with the main air heat exchanger successively, the secondary air heat exchanger, the main air heat exchanger is communicated with curing oven, the secondary air heat exchanger is communicated with the purging exhaust outlet and change is coated with drying oven, the place, gas outlet of secondary air heat exchanger is communicated with air-introduced machine, and the outlet of air-introduced machine connects exhaust outlet.Waste gas can carry out Pintsch process with organic exhaust gas after focusing on burner in order, and the high temperature of generation can heat the waste gas that feeds in the exhaust gas heat exchanger.The main air heat exchanger utilizes the waste heat of Pintsch process that wind is heated after the exhausting of workshop, and then via pipeline, the hot blast after will heating again returns in the curing oven via pipeline, thereby painted steel sheet is toasted.The secondary air heat exchanger utilizes tail gas that new wind is heated, and the hot blast after will heating is transported to each hot-air blowing of production line back segment, changes to be coated with and dry the position use by pipeline.The air inlet place of exhaust gas heat exchanger, main air heat exchanger, secondary air heat exchanger is air blast all.Through after the heat exchange, the tail gas of 200 ℃ of less thaies is entered atmosphere through pipeline.By adopting waste gas burning, after the technology of central heating, the cracking fully of organic solvent in the waste gas, C wherein, H composition obtain recycling as the incendivity thing (energy) of high heating value, and the exhaust emissions of innoxious relative low temperature that does not contain pollutant is to aerial.
As preferably, be connected with the water heater that can heat the pre-treatment circulation fluid between described secondary air heat exchanger and the air-introduced machine.Part of waste heat is used to heat the production line pretreatment liquid, makes it to reach technological temperature, satisfy and produce needs.
As preferably, described curing oven includes that the end back of the body is coated with curing oven and face is coated with curing oven, the end back of the body is coated with the air outlet that curing oven, face be coated with curing oven and is communicated with exhaust gas heat exchanger, main air heat exchanger respectively by pipeline, and the air outlet of main air heat exchanger is carried on the back by the thermal circulation fan and the end and is coated with the air inlet that curing oven, face be coated with curing oven and is communicated with.The end back of the body is coated with curing oven, face is coated with on the curing oven and can has a plurality of air outlets, air inlet, makes that heating is comparatively even.The end back of the body is coated with the end that curing oven, face be coated with curing oven can be provided with the waste discharge gas port.
As preferably, the back of the body of the described end is coated with the air inlet place that curing oven and face be coated with curing oven and is provided with burner, can the gas in the curing oven be heated.As preferably, described purging exhaust outlet comprises that the strong cold blowing that can feed cold air is swept mouthful with pre-treatment and purges mouthful.
Therefore; the utlity model has incinerator and multi-stage heat-exchanger are set in whole; utilize the high temperature that produces after the temperature of waste gas itself and the cracking; production usefulness gas, water are heated; again harmful substance is removed simultaneously; both saved the energy, protected environment again, characteristics such as simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Parts, position and numbering among the figure: burner 1, incinerator 2, exhaust gas heat exchanger 3, flue gas leading 4, main air heat exchanger 5, secondary air heat exchanger 6, change be coated with that drying oven 7, air-introduced machine 8, exhaust outlet 9, water heater 10, the end back of the body are coated with that curing oven 11, face are coated with that curing oven 12, thermal circulation fan 13, strong cold blowing sweep mouthfuls 14, pre-treatment purges mouthfuls 15.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the color coated steel sheet paint solidification system that has incinerator and multi-stage heat exchanger of this example, as Fig. 1, a burner 1 is arranged, burner is connected with incinerator 2, the water heater 10 that incinerator is communicated with exhaust gas heat exchanger 3, main air heat exchanger 5, secondary air heat exchanger 6 successively and can heats the pre-treatment circulation fluid by pipeline.Exhaust gas heat exchanger is communicated with burner by flue gas leading 4, exhaust gas heat exchanger, main air heat exchanger all are connected with curing oven by pipeline, curing oven includes the end back of the body and is coated with curing oven 11 and is coated with curing oven 12 with face, the end back of the body is coated with the air outlet that curing oven, face be coated with curing oven and is communicated with exhaust gas heat exchanger 3, main air heat exchanger 5 respectively by pipeline, the air outlet of main air heat exchanger is coated with the air inlet that curing oven, face be coated with curing oven by thermal circulation fan 13 and the end back of the body and is communicated with, and the end back of the body is coated with the air inlet place that curing oven 11 and face be coated with curing oven 12 and is provided with burner 1.The secondary air heat exchanger is communicated with the purging exhaust outlet and change is coated with drying oven 7, purges exhaust outlet and comprises that mouth 14 is swept in the strong cold blowing that can feed cold air and pre-treatment purges mouth 15.The air outlet of water heater 10 is communicated with air-introduced machine 8, and the outlet of air-introduced machine connects exhaust outlet 9.
During use, the waste gas that earlier curing oven is contained organic solvent through air exhauster is sent into burner 1 and is carried out the Pintsch process burning.The hot flue gas that burning produces by the 3 heating ends of the exhaust gas heat exchanger back of the body be coated with curing oven 11, face is coated with the organic exhaust gas of extracting out in the curing oven 12 and sends into burner; Feed workshop air from main air heat exchanger 5 air inlets, send after the heating that the end back of the body is coated with curing oven 11, face is coated with the steel band after the curing oven 12 baking japannings to; By deliver to pre-treatment after secondary air heat exchanger 6 heating, change be coated with, operation such as Qiang Leng carries out hot blow to steel plate and sweeps; By water heater 10 heating pre-treatment circulation fluids; Residual gas is discharged from exhaust outlet 9 by air-introduced machine 8.
Claims (5)
1. color coated steel sheet paint solidification system that has incinerator and multi-stage heat exchanger, comprise burner (1), it is characterized in that described burner (1) is connected with exhaust gas heat exchanger (3) by incinerator (2), exhaust gas heat exchanger is communicated with burner by flue gas leading (4), exhaust gas heat exchanger is connected with curing oven by pipeline, the air outlet place of exhaust gas heat exchanger is communicated with main air heat exchanger (5) successively, secondary air heat exchanger (6), the main air heat exchanger is communicated with curing oven, the secondary air heat exchanger is communicated with the purging exhaust outlet and change is coated with drying oven (7), the place, gas outlet of secondary air heat exchanger is communicated with air-introduced machine (8), and the outlet of air-introduced machine connects exhaust outlet (9).
2. the color coated steel sheet paint solidification system that has incinerator and multi-stage heat exchanger according to claim 1 is characterized in that being connected with between described secondary air heat exchanger (6) and the air-introduced machine (8) water heater (10) that can heat the pre-treatment circulation fluid.
3. the color coated steel sheet paint solidification system that has incinerator and multi-stage heat exchanger according to claim 1 and 2, it is characterized in that described curing oven includes the end back of the body and is coated with curing oven (11) and is coated with curing oven (12) with face, the end back of the body is coated with the air outlet that curing oven, face be coated with curing oven and is communicated with exhaust gas heat exchanger (3), main air heat exchanger (5) respectively by pipeline, and the air outlet of main air heat exchanger is carried on the back by the thermal circulation fan (13) and the end and is coated with the air inlet that curing oven, face be coated with curing oven and is communicated with.
4. the color coated steel sheet paint solidification system that has incinerator and multi-stage heat exchanger according to claim 3 is characterized in that the back of the body of the described end is coated with curing oven (11) and is provided with burner (1) with the air inlet place that face is coated with curing oven (12).
5. the color coated steel sheet paint solidification system that has incinerator and multi-stage heat exchanger according to claim 1 and 2 is characterized in that described purging exhaust outlet comprises that mouthful (14) are swept in the strong cold blowing that can feed cold air and pre-treatment purges mouthful (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201166800U CN201621709U (en) | 2010-02-23 | 2010-02-23 | Color-coated steel plate coating solidifying system with incineration furnace and multi-stage heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201166800U CN201621709U (en) | 2010-02-23 | 2010-02-23 | Color-coated steel plate coating solidifying system with incineration furnace and multi-stage heat exchanger |
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| Publication Number | Publication Date |
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| CN201621709U true CN201621709U (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201166800U Expired - Lifetime CN201621709U (en) | 2010-02-23 | 2010-02-23 | Color-coated steel plate coating solidifying system with incineration furnace and multi-stage heat exchanger |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127323A (en) * | 2018-09-30 | 2019-01-04 | 中国汽车工业工程有限公司 | A kind of Two-way Cycle drying system |
| WO2019052135A1 (en) * | 2017-09-18 | 2019-03-21 | 广东工业大学 | Energy-saving voc waste gas treatment system |
| CN110906348A (en) * | 2019-10-30 | 2020-03-24 | 鞍钢股份有限公司 | System and method for comprehensively utilizing low-temperature flue gas waste heat of color coating incinerator |
| CN111256156A (en) * | 2020-01-21 | 2020-06-09 | 鞍钢股份有限公司 | Efficient utilization system and method for low-temperature flue gas waste heat of color coating line |
| CN112546856A (en) * | 2020-11-25 | 2021-03-26 | 清华大学 | Treatment method of VOCs waste gas containing NVOCs in color plate preparation |
-
2010
- 2010-02-23 CN CN2010201166800U patent/CN201621709U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019052135A1 (en) * | 2017-09-18 | 2019-03-21 | 广东工业大学 | Energy-saving voc waste gas treatment system |
| CN109127323A (en) * | 2018-09-30 | 2019-01-04 | 中国汽车工业工程有限公司 | A kind of Two-way Cycle drying system |
| CN109127323B (en) * | 2018-09-30 | 2024-04-19 | 中国汽车工业工程有限公司 | Dual cycle drying system |
| CN110906348A (en) * | 2019-10-30 | 2020-03-24 | 鞍钢股份有限公司 | System and method for comprehensively utilizing low-temperature flue gas waste heat of color coating incinerator |
| CN110906348B (en) * | 2019-10-30 | 2022-03-22 | 鞍钢股份有限公司 | System and method for comprehensively utilizing low-temperature flue gas waste heat of color coating incinerator |
| CN111256156A (en) * | 2020-01-21 | 2020-06-09 | 鞍钢股份有限公司 | Efficient utilization system and method for low-temperature flue gas waste heat of color coating line |
| CN111256156B (en) * | 2020-01-21 | 2022-03-22 | 鞍钢股份有限公司 | Efficient utilization system and method for low-temperature flue gas waste heat of color coating line |
| CN112546856A (en) * | 2020-11-25 | 2021-03-26 | 清华大学 | Treatment method of VOCs waste gas containing NVOCs in color plate preparation |
| CN112546856B (en) * | 2020-11-25 | 2021-12-07 | 清华大学 | Treatment method of VOCs waste gas containing NVOCs in color plate preparation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |
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| CX01 | Expiry of patent term |