CN103896501B - A kind of lime production line kiln tail ventilation system and kiln tail ventilation technics - Google Patents
A kind of lime production line kiln tail ventilation system and kiln tail ventilation technics Download PDFInfo
- Publication number
- CN103896501B CN103896501B CN201310738409.9A CN201310738409A CN103896501B CN 103896501 B CN103896501 B CN 103896501B CN 201310738409 A CN201310738409 A CN 201310738409A CN 103896501 B CN103896501 B CN 103896501B
- Authority
- CN
- China
- Prior art keywords
- kiln tail
- disconnector
- airduct
- gravity
- preheater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Air Supply (AREA)
Abstract
A kind of lime production line kiln tail ventilation system and kiln tail ventilation technics, ventilation system comprises rotary kiln, shaft preheater, preheater top feed bin, exports airduct, air cooling inertia-gravity disconnector, input fly-ash separator airduct, fiber bag precipitator, induced draft fan, chimney; Kiln tail ventilation technics is, the waste heat produced by rotary kiln enters shaft preheater makes material carry out preheating; Waste gas containing many kinds of substance and dust after preheating material exports from output airduct, and waste gas enters air cooling inertia-gravity disconnector, and make macrobead depart from and be cooled by mixing cold wind, gas enters fiber bag precipitator, and after-funnel up to standard is discharged; Dust granule enters lower road equipment dedusting ash Send out pump and reclaims.Advantage of the present invention: preheater waste gas not dilution air, can reduce again flue-gas temperature can collect larger particles dust in flue gas, the operation of this system, not mix cold wind, do not increase systemic resistance, save energy, reduction production cost.
Description
Technical field
The present invention relates to the dust removal by ventilation field of smelting industry lime production system, particularly a kind of lime production line kiln tail ventilation system and kiln tail ventilation technics.
Background technology
At present at all conglomeraties such as metallurgy, non-ferrous metal, mine sintering, calcium carbide, papermaking, chemical industry all widespread use band preheater rotary system production quickened lime products.Wingdale is carried out pre-thermolysis by the fume afterheat that the production of rotary system mainly utilizes rotary kiln firing system to produce by preheater, thus reaches energy-conservation, improves production capacity effect.In the middle of producing, Wingdale produces CO after preheater preheats decomposes
2gas, combustion-system fuel produces a large amount of flue gases in combustion, and Wingdale produces a certain amount of dust and flue gas waste gas in warm He in rotary kiln running, and these waste gas containing dust must have kiln tail ventilating and purifying air system.
With preheater rotary kiln produce quickened lime at home and external enterprise be applied more widely, its technical process basic simlarity, there are some differences in the ventilating and purifying air system technical process of kiln tail and equipment choice, some employing list blower fan primary dust removing systems, some employing list blower fan secondary dust collecting systems, some employing two fans secondary dust collecting systems.Single blower fan primary dust removing system major equipment is pulsed jet cloth filter and induced draft fan, and single blower fan secondary dust collecting system major equipment is tornado dust collector, pulsed jet cloth filter and induced draft fan; Two fans secondary dust collecting system major equipment is tornado dust collector and induced draft fan be primary dust removing, pulsed jet cloth filter and induced draft fan is two-stage dust removal.No matter primary dust removing system or secondary dust collecting system dust removing effects can reach national dust discharge standard.Primary dust removing systemic resistance is less so power consumption is relatively less, but due to go out preheater waste gas contained by dust granules no matter size all enter sack cleaner, the larger dust of particle reduces greatly cloth bag duration of service to cloth bag wearing and tearing.Secondary dust collecting system due to the larger power consumption of systemic resistance also comparatively large, but the dust going out larger particles contained by preheater waste gas enters sack cleaner after primary dust removing is collected, and therefore less to the wearing and tearing of cloth bag, cloth bag is longer for work-ing life.Different dust collecting process systems respectively has relative merits.Go out the spent air temperture about about 250 DEG C of preheater simultaneously, and sack cleaner working temperature is 180 DEG C, for reaching sack cleaner operating temperature requirements, mixing freezing air in the offgas makes spent air temperture drop to 180 DEG C, increase exhausted air quantity artificially, cause lectotype selection to maximize, too increase the power consumption of system.
Design out preheater waste gas not dilution air, flue-gas temperature can be reduced again and larger particles dust in flue gas can be collected, the dust collecting process system that systemic resistance is less, investment is reduced to project, reduction production cost is significant.
Summary of the invention
The object of the invention is in order to save energy, reduce production cost, spy provides a kind of lime production line kiln tail ventilation system and kiln tail ventilation technics.
The invention provides a kind of lime production line kiln tail ventilation system, it is characterized in that: described lime production line kiln tail ventilation system, comprise rotary kiln 1, shaft preheater 2, preheater top feed bin 3, export airduct 4, air cooling inertia-gravity disconnector 5, input fly-ash separator airduct 6, fiber bag precipitator 7, induced draft fan 8, chimney 9;
Wherein: shaft preheater 2 is arranged on the top of rotary kiln 1, preheater top feed bin 3 is arranged on the top of shaft preheater 2; Shaft preheater 2 is connected with air cooling inertia-gravity disconnector 5 by exporting airduct 4; Air cooling inertia-gravity disconnector 5 is connected with fiber bag precipitator 7 by input fly-ash separator airduct 6; Fiber bag precipitator 7 is connected with induced draft fan 8, and chimney 9 is arranged on induced draft fan 8.
Described rotary kiln 1 is 5 × 70 meters of rotary kilns.
Adopt a kiln tail ventilation technics for lime production line kiln tail ventilation system, it is characterized in that: described kiln tail ventilation technics is, the waste heat produced by rotary kiln 1 enters shaft preheater 2 makes material carry out preheating; Waste gas containing many kinds of substance and dust after preheating material exports from output airduct 4, waste gas enters air cooling inertia-gravity disconnector 5, in air cooling inertia-gravity disconnector 5, carry out process makes macrobead depart from and be cooled by mixing cold wind, depart from the cooled gas of particle and enter fiber bag precipitator 7 again by input fly-ash separator airduct 6, the gas after dedusting is up to standard is discharged through chimney 9 by induced draft fan 8; The dust granule of discharging via air cooling inertia-gravity disconnector 5 and fiber bag precipitator 7 enters lower road equipment dedusting ash Send out pump and reclaims.
Technical characterstic is not to dilution air in heat smoke, and spent air temperture is down to 180 DEG C by 250 DEG C, decreases system exhaust smoke level; The resistance only 100Pa larger than primary dust removing system in the past of system, the power of system does not increase; Waste gas obtains sedimentation through air cooling inertia-gravity disconnector big dust particle, and sack cleaner working strength is low, cloth bag long service life; Reduce investment outlay because air cooling inertia-gravity disconnector cost is low; And decrease use power owing to not making exhaust smoke level reduce to dilution air in waste gas, reduce power consumption.Ventilating and purifying air system is smooth and easy, owing to increasing air cooling inertia-gravity disconnector 5 between shaft preheater 2 and fiber bag precipitator 7, dust collection capacity is improved, dust removal installation life, and the precipitation apparatus of increase is manufactured simply, rational in infrastructure.
Advantage of the present invention:
Lime production line kiln tail ventilation system of the present invention and kiln tail ventilation technics, preheater waste gas not dilution air, flue-gas temperature can be reduced again and larger particles dust in flue gas can be collected, the dust collecting process system that systemic resistance is less, reduces investment to project, reduction production cost is significant.The operation of this system, system is not mixed cold wind, does not increase systemic resistance, save energy, is reduced production cost.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is the ventilating and purifying air system schematic diagram being added with air cooling inertia-gravity disconnector;
Fig. 2 is air cooling inertia-gravity disconnector device structure schematic diagram;
In figure, 10 is gas approach, and 11 is flue gas acceleration cylinder, and 12 is exhanst gas outlet, and 13 is radiator element, and 14 is stiffening web, and 15 is ash discharging hole.
Embodiment
Embodiment 1
The invention provides a kind of lime production line kiln tail ventilation system, it is characterized in that: described lime production line kiln tail ventilation system, comprise rotary kiln 1, shaft preheater 2, preheater top feed bin 3, export airduct 4, air cooling inertia-gravity disconnector 5, input fly-ash separator airduct 6, fiber bag precipitator 7, induced draft fan 8, chimney 9;
Wherein: shaft preheater 2 is arranged on the top of rotary kiln 1, preheater top feed bin 3 is arranged on the top of shaft preheater 2; Shaft preheater 2 is connected with air cooling inertia-gravity disconnector 5 by exporting airduct 4; Air cooling inertia-gravity disconnector 5 is connected with fiber bag precipitator 7 by input fly-ash separator airduct 6; Fiber bag precipitator 7 is connected with induced draft fan 8, and chimney 9 is arranged on induced draft fan 8.
Described rotary kiln 1 is 5 × 70 meters of rotary kilns.
Adopt a kiln tail ventilation technics for lime production line kiln tail ventilation system, it is characterized in that: described kiln tail ventilation technics is, the waste heat produced by rotary kiln 1 enters shaft preheater 2 makes material carry out preheating; Waste gas containing many kinds of substance and dust after preheating material exports from output airduct 4, waste gas enters air cooling inertia-gravity disconnector 5, in air cooling inertia-gravity disconnector 5, carry out process makes macrobead depart from and be cooled by mixing cold wind, depart from the cooled gas of particle and enter fiber bag precipitator 7 again by input fly-ash separator airduct 6, the gas after dedusting is up to standard is discharged through chimney 9 by induced draft fan 8; The dust granule of discharging via air cooling inertia-gravity disconnector 5 and fiber bag precipitator 7 enters lower road equipment dedusting ash Send out pump and reclaims.
Technical characterstic is not to dilution air in heat smoke, and spent air temperture is down to 180 DEG C by 250 DEG C, decreases system exhaust smoke level; The resistance only 100Pa larger than primary dust removing system in the past of system, the power of system does not increase; Waste gas obtains sedimentation through air cooling inertia-gravity disconnector big dust particle, and sack cleaner working strength is low, cloth bag long service life; Reduce investment outlay because air cooling inertia-gravity disconnector cost is low; And due to not to dilution air in waste gas make exhaust smoke level reduce and, decrease use power, reduce power consumption.Ventilating and purifying air system is smooth and easy, owing to increasing air cooling inertia-gravity disconnector 5 between shaft preheater 2 and fiber bag precipitator 7, dust collection capacity is improved, dust removal installation life, and the precipitation apparatus of increase is manufactured simply, rational in infrastructure.
Claims (2)
1. a lime production line kiln tail ventilation system, it is characterized in that: described lime production line kiln tail ventilation system, comprise rotary kiln (1), shaft preheater (2), preheater top feed bin (3), export airduct (4), air cooling inertia-gravity disconnector (5), input fly-ash separator airduct (6), fiber bag precipitator (7), induced draft fan (8), chimney (9);
Wherein: shaft preheater (2) is arranged on the top of rotary kiln (1), preheater top feed bin (3) is arranged on the top of shaft preheater (2); Shaft preheater (2) is connected with air cooling inertia-gravity disconnector (5) by exporting airduct (4); Air cooling inertia-gravity disconnector (5) is connected with fiber bag precipitator (7) by input fly-ash separator airduct (6); Fiber bag precipitator (7) is connected with induced draft fan (8), and chimney (9) is arranged on induced draft fan (8); Described rotary kiln (1) is 5 × 70 meters of rotary kilns.
2. one kind adopts the kiln tail ventilation technics of lime production line kiln tail ventilation system according to claim 1, it is characterized in that: described kiln tail ventilation technics is, the waste heat produced by rotary kiln (1) enters shaft preheater (2) makes material carry out preheating; Waste gas containing many kinds of substance and dust after preheating material exports from output airduct (4), waste gas enters air cooling inertia-gravity disconnector (5), in air cooling inertia-gravity disconnector (5), carry out process makes macrobead depart from and be cooled by mixing cold wind, depart from the cooled gas of particle and enter fiber bag precipitator (7) again by input fly-ash separator airduct (6), the gas after dedusting is up to standard is discharged through chimney (9) by induced draft fan (8); The dust granule of discharging via air cooling inertia-gravity disconnector (5) and fiber bag precipitator (7) enters lower road equipment dedusting ash Send out pump and reclaims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310738409.9A CN103896501B (en) | 2013-12-30 | 2013-12-30 | A kind of lime production line kiln tail ventilation system and kiln tail ventilation technics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310738409.9A CN103896501B (en) | 2013-12-30 | 2013-12-30 | A kind of lime production line kiln tail ventilation system and kiln tail ventilation technics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103896501A CN103896501A (en) | 2014-07-02 |
| CN103896501B true CN103896501B (en) | 2016-03-16 |
Family
ID=50988132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310738409.9A Active CN103896501B (en) | 2013-12-30 | 2013-12-30 | A kind of lime production line kiln tail ventilation system and kiln tail ventilation technics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103896501B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105087942B (en) * | 2015-09-11 | 2018-10-02 | 河北宏贸环保科技有限公司 | A kind of industrial solid castoff processing method and system |
| CN109631593B (en) * | 2019-02-11 | 2023-09-26 | 江苏中圣园科技股份有限公司 | Rotary lime kiln preheater with efficient flue gas desulfurization |
| CN111116063A (en) * | 2019-12-23 | 2020-05-08 | 董武斌 | Method for weakening or eliminating burst of easy-to-powder and difficult-to-calcine limestone |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008027285A2 (en) * | 2006-08-25 | 2008-03-06 | Rossi Robert A | Process and system for producing commercial quality carbon dioxide from high solids lime mud |
| CN101385934A (en) * | 2008-10-17 | 2009-03-18 | 四川兆兴环保科技发展有限公司 | Dust collection method of lime kiln gas in combinative alkali production and special device thereof |
| CN101891405A (en) * | 2010-07-10 | 2010-11-24 | 新兴河北工程技术有限公司 | Active lime production plant |
| CN102661666A (en) * | 2012-04-20 | 2012-09-12 | 南京苏冶钙业技术有限公司 | Tail gas utilization method and tail gas utilization system of rotary lime kiln |
| CN202547358U (en) * | 2012-04-20 | 2012-11-21 | 南京苏冶钙业技术有限公司 | Tail gas utilization system for lime rotary kiln |
-
2013
- 2013-12-30 CN CN201310738409.9A patent/CN103896501B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008027285A2 (en) * | 2006-08-25 | 2008-03-06 | Rossi Robert A | Process and system for producing commercial quality carbon dioxide from high solids lime mud |
| CN101385934A (en) * | 2008-10-17 | 2009-03-18 | 四川兆兴环保科技发展有限公司 | Dust collection method of lime kiln gas in combinative alkali production and special device thereof |
| CN101891405A (en) * | 2010-07-10 | 2010-11-24 | 新兴河北工程技术有限公司 | Active lime production plant |
| CN102661666A (en) * | 2012-04-20 | 2012-09-12 | 南京苏冶钙业技术有限公司 | Tail gas utilization method and tail gas utilization system of rotary lime kiln |
| CN202547358U (en) * | 2012-04-20 | 2012-11-21 | 南京苏冶钙业技术有限公司 | Tail gas utilization system for lime rotary kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103896501A (en) | 2014-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102173608A (en) | Method for preparing cement clinker from high-proportion carbide slag through decomposition outside kiln of five-stage preheater | |
| CN205191616U (en) | Novel clean flue gas heating device | |
| CN101791622B (en) | Process method for converting metal magnesium slag into desulphurizer of boiler | |
| CN202666644U (en) | Water-saving and low-energy-consumption flue gas dry-wet compound dedusting and desulfurizing system | |
| CN103344114B (en) | A kind of novel energy-saving emission-reducing sintering machine system and sintering method | |
| CN101607796B (en) | Method for producing low alkali cement by using high alkali raw materials | |
| CN103896501B (en) | A kind of lime production line kiln tail ventilation system and kiln tail ventilation technics | |
| CN102235679B (en) | Dust removing device with wet and dry method combined mode | |
| CN203163513U (en) | Tail gas recovery device of sealed calcium carbide furnace | |
| CN104748508A (en) | Coal slurry drying system | |
| CN108411116A (en) | A kind of lateritic nickel ore RKEF smelting processes smoke gas comprehensive treatment system and method | |
| CN202179983U (en) | Large-scale industrial production system for fly ash | |
| CN202543289U (en) | Device for extracting vanadium by three-step method | |
| CN203222597U (en) | Coal gas dust control device of rotary furnace | |
| CN1312070C (en) | Predecomposition kiln by pass air relief and coal gangue dewatering technology | |
| CN211198619U (en) | Energy-conserving efficient carbide production system | |
| CN204555552U (en) | A kind of coal slime drying system | |
| CN202666645U (en) | Saving-type high-efficiency and energy-saving dry-wet composite dust removal and desulfurization system for flue gas | |
| CN209752585U (en) | Zinc-containing dust treatment system | |
| CN113956065A (en) | Ceramsite firing system and method based on sludge low-temperature vacuum drying device | |
| CN204429023U (en) | A kind of sintering machine head end combination dust arrester | |
| CN202594784U (en) | System using sulfur-containing smoke to manufacture sulphur | |
| CN208541962U (en) | A kind of online dust pelletizing system of converter | |
| CN201840958U (en) | Flue gas purifying device for graded recovery of expanded perlite in shaft kiln | |
| CN212215079U (en) | Bypass air-bleeding dust-removing flue gas secondary treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |