CN104801132B - Use rotary kiln smoke processing system and the method for plasma ignition - Google Patents
Use rotary kiln smoke processing system and the method for plasma ignition Download PDFInfo
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- CN104801132B CN104801132B CN201510094177.7A CN201510094177A CN104801132B CN 104801132 B CN104801132 B CN 104801132B CN 201510094177 A CN201510094177 A CN 201510094177A CN 104801132 B CN104801132 B CN 104801132B
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Abstract
The invention belongs to Environmental-protecting dust-removing technical field, especially relate to a kind of rotary kiln smoke processing system using plasma ignition and method, smoke processing system includes multi-tube dust cleaner, backheat blower fan, it is characterized in that being connected by hot air duct with backheat blower fan have sack cleaner, it is connected with this sack cleaner and has blower fan, it is connected with this blower fan and has chimney, it is positioned at backheat fan outlet at hot air duct and is provided with electric control valve I, it is positioned at tail cleaner unit porch at hot air duct and is provided with electric control valve II, electric control valve III it is provided with on pipeline between backheat blower fan and the drying grate section of draining.The present invention, by optimizing rotary kiln ignition process flow process, improves some fire environment, reaches the purpose of safety ignition.Flue dust carries out first dedusting through multi-tube dust cleaner, then enters sack cleaner through backheat blower fan, hot air duct, and owing to the efficiency of dust collection of bag-type dust is the highest, the pollutant being drained into air substantially reduce.
Description
Technical field
The invention belongs to Environmental-protecting dust-removing technical field, especially relate to a kind of rotary kiln smoke processing system using plasma ignition and method.
Background technology
At present, Plasma Firing Technology with it efficiently, economy, the advantage such as environmental protection be progressively widely used in field at boiler of power plant, Industrial Stoves.But, the enterprise of application Plasma Firing Technology is the most also in the traditional handicraft pattern continuing to use " plasma ignition+electric precipitation starts " now.In theory, during plasma ignition, electric precipitation can be put into immediately, but current Booting sequence exists certain potential safety hazard.As a example by the enterprise producing pellet based on grate-kiln pelletizing process, owing to the distance between rotary kiln and electric precipitation is short, once plasma ignition system generation current interruption, a large amount of subparticle coal dusts and fugitive constituent will enter into electric precipitation with moving air, operationally, between electric field cathode-anode plate, ceiling voltage reaches 72KV to electric precipitation, and internal electric field produces electric spark, now, there is generation coal dust detonation hidden danger.Meanwhile, the efficiency of dust collection of electric precipitation is 99% in theory, and national requirements for environmental protection exit concentration is less than 50mg/m3, the efficiency of dust collection of electric precipitation is the most not enough.
Summary of the invention
It is an object of the invention to provide a kind of rotary kiln smoke processing system using plasma ignition and method, eliminate safe hidden trouble.
It is an object of the invention to be realized by following technical proposals:
The rotary kiln smoke processing system using plasma ignition of the present invention, including the multi-tube dust cleaner being connected with drying grate preheating two-stage nitration, the backheat blower fan being connected with this multi-tube dust cleaner, this backheat blower fan is connected by pipeline with the drying grate section of draining, it is characterized in that being connected by hot air duct with described backheat blower fan have sack cleaner, it is connected with this sack cleaner and has blower fan, it is connected with this blower fan and has chimney, it is positioned at described backheat fan outlet at described hot air duct and is provided with electric control valve I, it is positioned at described sack cleaner porch at described hot air duct and is provided with electric control valve II, it is provided with electric control valve III on pipeline between described backheat blower fan and the described drying grate section of draining, the dust collector box body and ash bucket of described sack cleaner are provided with one group of explosion-proof valve.
One group of described explosion-proof valve is provided with two in described dust-removing box side, and one group of described explosion-proof valve is provided with three on front side of described ash bucket, and one group of described explosion-proof valve is provided with three on rear side of described ash bucket.
A kind of rotary kiln flue gas processing method using plasma ignition, it is characterised in that the flue dust concrete dust collecting process flow process produced from central cooler rotary kiln is: rotary kiln flue dust drying grate preheating two-stage nitration multi-tube dust cleaner backheat blower fan hot air duct sack cleaner blower fan chimney is discharged；
Wherein, the electric control valve I being positioned at hot air duct hot-air blower last time exit is closed when plasma ignition and is opened when normal production；
The electric control valve II being positioned at sack cleaner porch on hot air duct is closed when plasma ignition and is opened when normal production；
Electric control valve III on pipeline between backheat blower fan and the drying grate section of draining is opened when plasma ignition and is closed when normal production.
Advantages of the present invention:
The rotary kiln smoke processing system using plasma ignition of the present invention and method, by optimizing rotary kiln ignition process flow process, improve some fire environment, reach the purpose of safety ignition.Flue dust carries out first dedusting through multi-tube dust cleaner, then enters sack cleaner through backheat blower fan, hot air duct, and due to the efficiency of dust collection of bag-type dust the highest (99.9%), exit concentration is less than 1 mg/m3, the pollutant being drained into air will be preferably minimized.Simultaneously as all there is no electric spark or other ignition substance inside multi-tube dust cleaner and sack cleaner, it is inherently eliminated the hidden danger of coal dust detonation.
Accompanying drawing explanation
Fig. 1 is the cleaner structural representation of the present invention.
Detailed description of the invention
Further illustrate the detailed description of the invention of the present invention below in conjunction with the accompanying drawings.
nullAs shown in Figure 1，The rotary kiln smoke processing system using plasma ignition of the present invention，Including the multi-tube dust cleaner 9 being connected with drying grate preheating two-stage nitration 10，The backheat blower fan 7 being connected with this multi-tube dust cleaner 9，This backheat blower fan 7 is connected by pipeline with the drying grate section of draining 11，It is characterized in that being connected by hot air duct 5 with described backheat blower fan 7 have sack cleaner 4，It is connected with this sack cleaner 4 and has blower fan 2，It is connected with this blower fan 2 and has chimney 1，It is positioned at described backheat blower fan 7 exit at described hot air duct 5 and is provided with electric control valve I 6，It is positioned at described sack cleaner 4 porch at described hot air duct 5 and is provided with electric control valve II 12，It is provided with electric control valve III 8 on pipeline between described backheat blower fan 7 and the described drying grate section of draining 11，The dust collector box body and ash bucket of described sack cleaner 4 are provided with one group of explosion-proof valve 3.
One group of described explosion-proof valve 3 is provided with two in described dust-removing box side, and one group of described explosion-proof valve 3 is provided with three on front side of described ash bucket, and one group of described explosion-proof valve 3 is provided with three on rear side of described ash bucket.
A kind of rotary kiln flue gas processing method using plasma ignition, it is characterised in that the flue dust concrete dust collecting process flow process produced from central cooler rotary kiln is: rotary kiln flue dust drying grate preheating two-stage nitration 10 multi-tube dust cleaner 9 backheat blower fan 7 hot air duct 5 sack cleaner 4 blower fan 2 chimney 1 is discharged；
Wherein, the electric control valve I 6 being positioned at hot air duct 5 hot-air blower last time 7 exit is closed when plasma ignition and is opened when normal production；
It is positioned at the electric control valve II 12 of sack cleaner 4 porch on hot air duct 5 to close when plasma ignition and open when normal production；
Electric control valve III 8 on pipeline between backheat blower fan 7 and the drying grate section of draining 11 is opened when plasma ignition and is closed when normal production.
The dust collecting process of new rotary kiln plasma ignition, flue dust carries out first dedusting through multi-tube dust cleaner 9, entering sack cleaner 4 bag-type dust through backheat blower fan 7, hot air duct 5 again, due to the efficiency of dust collection of bag-type dust the highest (99.9%), the pollutant being drained into air will be preferably minimized.Installing one group of explosion-proof valve 3 on sack cleaner 4 casing and ash bucket, after once the cloth bag in sack cleaner 4 occurs to stick with paste bag fault, produce malleation in sack cleaner 4 casing, explosion-proof valve 3 automatically turns on, it is ensured that air flowing is unimpeded, maintains igniting to be smoothed out.Whole flue dust flow process does not has electric spark to produce, and eliminates potential safety hazard.Sinter machine discharge end dedusting power of motor is 160KW, saves electric energy.
Claims (3)
1. the rotary kiln smoke processing system using plasma ignition, including the multi-tube dust cleaner being connected with drying grate preheating two-stage nitration, the backheat blower fan being connected with this multi-tube dust cleaner, this backheat blower fan is connected by pipeline with the drying grate section of draining, it is characterized in that being connected by hot air duct with described backheat blower fan have sack cleaner, it is connected with this sack cleaner and has blower fan, it is connected with this blower fan and has chimney, it is positioned at described backheat fan outlet at described hot air duct and is provided with electric control valve I, it is positioned at described sack cleaner porch at described hot air duct and is provided with electric control valve II, it is provided with electric control valve III on pipeline between described backheat blower fan and the described drying grate section of draining, the dust collector box body and ash bucket of described sack cleaner are provided with one group of explosion-proof valve.
The rotary kiln smoke processing system of employing plasma ignition the most according to claim 1, it is characterized in that described one group explosion-proof valve is provided with two in the dust collector box body side of described sack cleaner, one group of described explosion-proof valve is provided with three on front side of described ash bucket, and one group of described explosion-proof valve is provided with three on rear side of described ash bucket.
3. the rotary kiln flue gas processing method using plasma ignition, it is characterised in that the flue dust concrete dust collecting process flow process produced from central cooler rotary kiln is: rotary kiln flue dust drying grate preheating two-stage nitration multi-tube dust cleaner backheat blower fan hot air duct sack cleaner blower fan chimney is discharged；
Wherein, the electric control valve I being positioned at hot air duct hot-air blower last time exit is closed when plasma ignition and is opened when normal production；
The electric control valve II being positioned at sack cleaner porch on hot air duct is closed when plasma ignition and is opened when normal production；
Electric control valve III on pipeline between backheat blower fan and the drying grate section of draining is opened when plasma ignition and is closed when normal production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510094177.7A CN104801132B (en) | 2015-03-04 | 2015-03-04 | Use rotary kiln smoke processing system and the method for plasma ignition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510094177.7A CN104801132B (en) | 2015-03-04 | 2015-03-04 | Use rotary kiln smoke processing system and the method for plasma ignition |
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| Publication Number | Publication Date |
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| CN104801132A CN104801132A (en) | 2015-07-29 |
| CN104801132B true CN104801132B (en) | 2016-09-14 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000135411A (en) * | 1998-10-29 | 2000-05-16 | Tanabe Kogyo Kk | Exhaust gas treatment device and its manufacture |
| CN201297862Y (en) * | 2008-09-25 | 2009-08-26 | 乳源东阳光磁性材料有限公司 | Dust remover for rotary kiln |
| CN201666738U (en) * | 2010-02-02 | 2010-12-08 | 鞍山玺诺热能科技有限公司 | Pre-heated one section waste flue gas afterheat utilizing system of pellet grate machine |
| CN202921126U (en) * | 2012-11-20 | 2013-05-08 | 莱芜市白象消防器材有限公司 | Dust collecting system for pelletizing chain grate |
| CN104236305B (en) * | 2014-09-27 | 2016-01-06 | 芜湖新兴铸管有限责任公司 | A kind of rotary kiln tail position dust arrester |
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Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Angang Group Mine Company |