CN101749716B - Centralized emission reduction method and device for enamelling machine group - Google Patents
Centralized emission reduction method and device for enamelling machine group Download PDFInfo
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- CN101749716B CN101749716B CN2009101890921A CN200910189092A CN101749716B CN 101749716 B CN101749716 B CN 101749716B CN 2009101890921 A CN2009101890921 A CN 2009101890921A CN 200910189092 A CN200910189092 A CN 200910189092A CN 101749716 B CN101749716 B CN 101749716B
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Abstract
The invention relates to a centralized emission reduction method for an enamelling machine group, which comprises the following steps: a. communicating secondary catalytic exhaust emission flues (3) of at least two enamelling machines (1) to constitute a centralized flue (6); b. accessing the centralized flue (6) into a centralized thrice catalytic combustion chamber (7); c. introducing the final exhaust discharged from the centralized thrice catalytic combustion chamber (7) into a final exhaust pipeline (10); d. accessing the final exhaust pipeline (10) into a final sprinkling chamber (11), wherein the final exhaust enters the final sprinkling chamber (11) from the final exhaust pipeline (10); and e. emitting the tail gas from the final sprinkling chamber (11). The gas finally emitted is clean and does not have any peculiar smell. The temperature of escaped tail gas is only 40 DEG C which is much lower than 300 DEG C in the prior art. The invention obviously improves the ambient environment of the plant area and the plant image.
Description
Technical field
The present invention relates to enamel-covered wire and cover and be coated with paint film and cure dry method and apparatus, particularly the discharging waste gas behind the catalytic combustion is reduced to the minimum technology of discharging again, relate in particular to many online method and apparatus that focus on tail gas of enamelling machine.
Background technology
At present, annual solvent (cresols and the dimethylbenzene) 150,000 tons that consumes of enamel-covered wire industry, energy consumption 12.24 hundred million kilowatt hours (amounting to 49.5 ten thousand tons in mark coal) are discharged 300 ℃ organic exhaust gas 15.3 billion cubic meters.
The comprehensive programme of work of State Council's energy-saving and emission-reduction: 2010, ten thousand yuan of GDP energy consumptions of China will drop to 1 ton below the standard coal by 1.22 tons of standard coals in 2005, reduce about 20%; Unit industrial added value water consumption reduces by 30%.The Eleventh Five-Year Plan period, Chinese total emissions of major pollutants reduces 10%.
By 2010, SO2 emissions reduced to 2,295 ten thousand tons by 2,549 ten thousand tons in 2005, and COD (COD) reduces to 1,273 ten thousand tons by 1,414 ten thousand tons; The whole nation is established city's treatment rate of domestic sewage and is not less than 70%, and percentage of industrial solid waste that is comprehensively utilized reaches more than 60%.
In the Production of Enamel Wires industry of prior art, aspect reducing cost, many producers undergo technological transformation to existing equipment successively, and have applied for some patents.
The applicant also just makes full use of catalytic heat energy, and saves energy is produced the problem of enamel-covered wire and made a series of technological transformation, and has applied for some patents, as:
200910105133.4, a kind of method and apparatus of enamelling machine reasonable catalytic combustion thermal energy distribution;
200910106213.1, a kind of enamelling machine hot air mixing chamber and hot air mixing method;
200910106214.6, method and device that a kind of enamelling machine forehearth area is cured.
Through above-mentioned technological improvement, energy-saving effect is fairly obvious, and compared with prior art, the technical scheme of above-mentioned patent application is energy-conservation more than 25%, and the fraction of particle in the toxic emission is reduced to 50mg/m3.Owing to cure with catalytic combustion thermal energy, so the present invention can save 30% above electric energy.
But, how further to reduce discharge index, reduce the peculiar smell in the discharging tail gas, remain the instant important topic of benefiting near the resident of factory, many producers seek assiduously.
Peculiar smell in the discharging tail gas is that the littler material of particulate volume in the brake specific exhaust emission tail gas causes, discharging tail gas is discharged after the quadric catalysis burning at every enamelling machine, combustible wherein is very low, academia both domestic and external is at this point all thought, such discharging tail gas can not be more further eliminated wherein particulate and peculiar smell by carrying out catalytic combustion, also can not see any relevant report both at home and abroad.
If the discharging tail gas of many enamelling machines is put together, the combustible of discharging in the tail gas increased, further eliminate wherein particulate and peculiar smell by catalytic combustion?
The conclusion of academia is that combustible content does not still increase in the unit volume, can not carry out catalytic combustion.
Summary of the invention
For defective and the weak point of avoiding existing in the prior art, overcome the prejudice of the conclusion of traditional academia, the present invention proposes a kind of enamelling machine group centralized emission reduction method and equipment.
In order to achieve the above object, the present invention is by realizing by the following technical solutions:
Implement a kind of enamelling machine group centralized emission reduction method, described method comprises the steps;
A. with the quadric catalysis toxic emission flue UNICOM of at least two enamelling machines, constitute and concentrate flue;
B. with three catalytic combustors in the described concentrated flue access set;
C. will import final exhaust piping from the final waste gas of concentrating three catalytic combustor discharges;
D. final exhaust piping is inserted final spray chamber; Described final waste gas enters final spray chamber from final exhaust piping;
E. tail gas is overflowed from final spray chamber.
In the said method, step c is described from concentrating the final waste gas of three catalytic combustor discharges, before importing final exhaust piping, through a hot water switch, is heated water and flows out from hot water pipeline.
In the said method, in the described final spray chamber of steps d, recirculated water is recycled water pump and gets in the spray thrower, then recirculated water from the numerous spray apertures of spray thrower with final spray chamber in final waste gas fully contact, adsorb the subparticle in the final waste gas.
In the said method, described spray thrower is arranged on the top of final spray chamber, and and the inwall of final spray chamber between leave the gap of overflowing for tail gas.
Manufacture and design a kind of equipment of enamelling machine group centralized emission reduction according to said method, described equipment comprises:
One concentrates flue,
One concentrates three catalytic combustors,
One final exhaust piping,
One final spray chamber, described concentrated flue connects the quadric catalysis toxic emission flue of at least two enamelling machines, and described concentrated flue connects concentrates three catalytic combustors;
Described concentrated three catalytic combustors form path with final exhaust piping; Described final exhaust piping connects final spray chamber.
Concentrate three catalytic combustors and finally between the exhaust piping hot water switch is arranged described.
Described hot water switch, described hot water switch has hot water pipeline, flows out to be heated water.
Described final spray chamber connects the water inlet pipe of water circulating pump, and the outlet pipe of water circulating pump is connected with water circulating pump by liquid reserve tank;
The end of described outlet pipe connects spray thrower, and spray thrower places the top of final spray chamber, and comprises numerous spray apertures.
Leave the gap of overflowing between the inwall of described spray thrower and final spray chamber, be the tail gas escape orifice for tail gas.
The top of described tail gas escape orifice is the exhaust collection chamber, and described exhaust collection chamber connects exhaust pipe, and described exhaust pipe connects the active carbon filtration chamber, and odorless gas is discharged in the active carbon filtration chamber.
Compared with prior art, enamelling machine group centralized emission reduction method of the present invention has outstanding effect:
At the tail gas escape orifice of final spray chamber, effusion be the light water vapour of cleaning, tail gas escape orifice itself totally cleans, and is close to active carbon filtration chamber outlet, at all can't smell some peculiar smell.Really accomplished the also living environment of a cleaning of the people.
Tail gas effusion temperature only has 40 ℃, is significantly less than 300 ℃ of prior art.
The invention solves the enamel-covered wire industry and discharge historical problem difficult up to standard all the time, enterprise's exhaust gas discharged has reached the requirement of discharge standard of air pollutants (GB16297-1996), the concentration difference 12,40,70 of benzene,toluene,xylene, 100mg/m
3Below, plant area's ambient atmosphere environment and corporate image have obtained tangible change.
Description of drawings
Fig. 1 is the separate unit enamelling machine functional-block diagram in a kind of enamelling machine group centralized emission reduction method of the present invention and the equipment;
Fig. 2 is the functional-block diagram of a kind of enamelling machine group centralized emission reduction method of the present invention and equipment.
Number in the figure:
1 enamelling machine, 2 catalytic combustion thermal energy return paths,
3 quadric catalysis toxic emission flues, 4 one-level catalyst converters,
5 enameling machine ovens, 6 concentrate flue, and 7 concentrate three catalytic combustors,
8 hot water switches, 9 hot water pipelines,
10 final exhaust pipings, 11 final spray chambers,
12 spray throwers, 13 liquid reserve tanks, 14 water circulating pumps,
15 outlet pipes, 16 blow-off lines,
17 tail gas escape orifices, 18 tail gas, active carbon filtration chambers 19
171 exhaust collection chambeies, 172 exhaust pipes 172,
181 odorless gas,
21 burner hearths, 22 exchanged heat air channels,
23 heat exchangers, 24 heat-exchange fan, 25 temperature adjustment blower fans,
26 circulation air paths, 27 enamel-covered wires, 29 circulating fans,
44 catalyst converters.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
Most preferred embodiment is implemented a kind of enamelling machine group centralized emission reduction method as shown in Figure 1 and Figure 2, and described method is based on the separate unit enamelling machine that the quadric catalysis combustion parts is installed.
Described step comprises:
A. with quadric catalysis toxic emission flue 3 UNICOMs of at least two enamelling machines 1, constitute and concentrate flue 6;
B. with three catalytic combustors 7 in described concentrated flue 6 access sets;
C. will import final exhaust piping 10 from the final waste gas of concentrating three catalytic combustor 7 discharges;
D inserts final spray chamber 11 with final exhaust piping 10; Described final waste gas enters final spray chamber 11 from final exhaust piping 10;
E. tail gas is overflowed from final spray chamber 11.
In the said method, step c is described from concentrating the final waste gas of three catalytic combustor 7 discharges, before importing final exhaust piping 10, through a hot water switch 8, is heated water and flows out from hot water pipeline 9.
In the said method, in the described final spray chamber 11 of steps d, recirculated water is recycled water pump 14 and gets in the spray thrower 12, then recirculated water from the numerous spray apertures of spray thrower 12 with final spray chamber 11 in final waste gas fully contact, adsorb the subparticle in the final waste gas.
In the said method, described spray thrower 12 is arranged on the top of final spray chamber 11, and and the inwall of final spray chamber 11 between leave the gap of overflowing for tail gas, be tail gas escape orifice 17.
Manufacture and design a kind of equipment of enamelling machine group centralized emission reduction, described equipment comprises:
One concentrates flue 6,
One concentrates three catalytic combustors 7,
One final exhaust piping 10,
One final spray chamber 11,
Described concentrated flue 6 connects the quadric catalysis toxic emission flue 3 of at least two enamelling machines 1, and described concentrated flue 6 connects concentrates three catalytic combustors 7;
Described concentrated three catalytic combustors 7 form paths with final exhaust piping 10;
Described final exhaust piping 10 connects final spray chamber 11.
Concentrate three catalytic combustors 7 and finally between the exhaust piping 10 a hot water switch 8 is arranged described.
Described hot water switch 8, described hot water switch 8 has hot water pipeline 9, flows out to be heated water.
Described final spray chamber 11 connects the water inlet pipe of water circulating pump 14, and the outlet pipe 15 of water circulating pump 14 is connected with water circulating pump 14 by liquid reserve tank 13;
The end of described outlet pipe 15 connects spray thrower 12, and spray thrower 12 places the top of final spray chamber 11, and comprises numerous spray apertures.
Leave the gap of overflowing between the inwall of described spray thrower 12 and final spray chamber 11, be tail gas escape orifice 17 for tail gas.
As shown in Figure 2, the top of described tail gas escape orifice 17 is exhaust collection chambeies 171, and described exhaust collection chamber 171 connects exhaust pipe 172.
Tail gas 18 connects active carbon filtration chamber 19 by described exhaust pipe 172 and carries, and odorless gas 181 is finally discharged by the outlet of active carbon filtration chamber 19.
With reference to Fig. 1, enamelling machine 1 has burner hearth 21, enamel-covered wire 27 passes therethrough, operation in the direction of arrows, by the waste gas of overflowing on the enamel-covered wire 27 is combustible gas, this combustible gas is burnt at catalyst converter 44 places, the part of a hot blast be recycled blower fan 29 follow the ring air channel 26 send back to burner hearth 21.
Another part of a hot blast is formed secondary hot-air by secondary catalyst converter 4 catalytic combustions, and secondary hot-air carries out heat exchange at heat exchanger 23 places with cleaning wind, and thermal cleaning wind enters burner hearth 21 by exchanged heat air channel 22.
The waste gas of being gone out by heat exchanger 23 enters quadric catalysis toxic emission flue 3, and quadric catalysis toxic emission flue 3 is connected with concentrated flue 6.
Heat-exchange fan 24 urges cleaning wind operation, temperature adjustment blower fan 25 regulate a hot blast temperature.
As shown in Figure 2, the enamelling machine 1 of separate unit has many to combine, one time catalytic combustion thermal energy return path 2 passes back to enameling machine oven 5 with heat energy, concentrates three catalytic combustors 7 that the quadric catalysis waste gas of many enamelling machines 1 is put together, make it to reach can catalytic combustion degree.This point is that the present invention tests successfully, and at the embodiment of successful operation.Since 6 months, peculiar smell never again around the factory, even if at waste gas escape orifice 17, peculiar smell is very little, the odorless gas 181 in the outlet of active carbon filtration chamber 19 just more can't smell peculiar smell.
At waste gas escape orifice thermometric degree, have only 40 ℃, be significantly less than 300 ℃ of prior art.
The invention solves the enamel-covered wire industry and discharge historical problem difficult up to standard all the time, enterprise's exhaust gas discharged has reached the requirement of discharge standard of air pollutants (GB16297-1996), the concentration difference 12,40,70 of benzene,toluene,xylene, 100mg/m
3Below, plant area's ambient atmosphere environment and corporate image have obtained tangible change
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. enamelling machine group centralized emission reduction method, it is characterized in that: described method comprises:
A. with quadric catalysis toxic emission flue (3) UNICOM of at least two enamelling machines (1), constitute and concentrate flue (6);
B. with three catalytic combustors (7) in described concentrated flue (6) access set;
C. will import final exhaust piping (10) from the final waste gas of concentrating three catalytic combustors (7) to discharge;
D. final exhaust piping (10) is inserted final spray chamber (11); Described final waste gas enters final spray chamber (11) from final exhaust piping (10);
E. tail gas is overflowed from final spray chamber (11).
2. enamelling machine group centralized emission reduction method according to claim 1 is characterized in that:
The described final waste gas from concentrating three catalytic combustors (7) to discharge of step c importing final exhaust piping (10) before, through a hot water switch (8), is heated water and flows out from hot water pipeline (9).
3. enamelling machine group centralized emission reduction method according to claim 1 is characterized in that:
In the described final spray chamber of steps d (11), recirculated water is recycled water pump (14) and gets in the spray thrower (12), then recirculated water from the numerous spray apertures of spray thrower (12) with final spray chamber (11) in final waste gas fully contact, adsorb the subparticle in the final waste gas.
4. enamelling machine group centralized emission reduction method according to claim 3 is characterized in that:
Described spray thrower (12) is arranged on the top of final spray chamber (11), and and the inwall of final spray chamber (11) between leave the gap of overflowing for tail gas, described gap is tail gas escape orifice (17).
5. the equipment of an enamelling machine group centralized emission reduction is characterized in that, described equipment comprises:
One concentrates flue (6),
One concentrates three catalytic combustors (7),
One final exhaust piping (10),
One final spray chamber (11),
Described concentrated flue (6) connects the quadric catalysis toxic emission flue (3) of at least two enamelling machines (1), and described concentrated flue (6) connects concentrates three catalytic combustors (7);
Described three catalytic combustors (7) and the final exhaust piping (10) concentrated forms path;
Described final exhaust piping (10) connects final spray chamber (11).
6. the equipment of enamelling machine group centralized emission reduction according to claim 5 is characterized in that:
Described concentrating between three catalytic combustors (7) and the final exhaust piping (10) a hot water switch (8) is arranged.
7. the equipment of enamelling machine group centralized emission reduction according to claim 6 is characterized in that:
Described hot water switch (8) has hot water pipeline (9), flows out to be heated water.
8. the equipment of enamelling machine group centralized emission reduction according to claim 5 is characterized in that:
Described final spray chamber (11) connects the water inlet pipe of water circulating pump (14), and water circulating pump (14) is connected with outlet pipe (15) by liquid reserve tank (13);
The end of described outlet pipe (15) connects spray thrower (12), and spray thrower (12) places the top of final spray chamber (11), and comprises numerous spray apertures.
9. the equipment of enamelling machine group centralized emission reduction according to claim 8 is characterized in that:
Leave the gap of overflowing for tail gas between the inwall of described spray thrower (12) and final spray chamber (11), described gap is tail gas escape orifice (17).
10. the equipment of enamelling machine group centralized emission reduction according to claim 9 is characterized in that:
The top of described tail gas escape orifice (17) is exhaust collection chamber (171), and described exhaust collection chamber (171) connects exhaust pipe (172), and described exhaust pipe (172) connects active carbon filtration chamber (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101890921A CN101749716B (en) | 2009-12-18 | 2009-12-18 | Centralized emission reduction method and device for enamelling machine group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101890921A CN101749716B (en) | 2009-12-18 | 2009-12-18 | Centralized emission reduction method and device for enamelling machine group |
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| Publication Number | Publication Date |
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| CN101749716A CN101749716A (en) | 2010-06-23 |
| CN101749716B true CN101749716B (en) | 2011-12-28 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947404A (en) * | 2010-07-30 | 2011-01-19 | 杭州小拇指汽车维修科技股份有限公司 | Method and device for treating painting room exhaust gas by using chlorine dioxide |
| CN102074317A (en) * | 2010-12-15 | 2011-05-25 | 林兆欣 | Hot air circulation and exchange enameled oven |
| CN102145250B (en) * | 2011-04-14 | 2014-02-26 | 宁波大学 | Fine processing method for enamelled wire industrial toxic tail gas |
| CN102145249B (en) * | 2011-04-14 | 2013-08-14 | 宁波大学 | Group centralized processing method for tail gas of enamelling machine |
| CN103120889A (en) * | 2011-11-18 | 2013-05-29 | 郑承煜 | Waste gas catalytic combustion and biological purification device |
| CN106610024A (en) * | 2017-02-10 | 2017-05-03 | 东莞市太阳线缆设备有限公司 | Waste gas treatment device for enamelling machine |
| CN107062275A (en) * | 2017-05-22 | 2017-08-18 | 浙江长城电工科技股份有限公司 | A kind of enameling machine oven waste gas tail gas multi-processing methods and its device |
| FR3077996B1 (en) * | 2018-02-21 | 2020-02-21 | Suez Groupe | PROCESS FOR THE TREATMENT OF GASES AND ASSOCIATED TREATMENT UNIT |
| CN108777198B (en) * | 2018-04-24 | 2019-12-27 | 安徽春辉仪表线缆集团有限公司 | Method and equipment for baking front furnace area of energy-saving enamelling machine |
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2009
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