CN103557697A - Novel rotary kiln - Google Patents
Novel rotary kiln Download PDFInfo
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- CN103557697A CN103557697A CN201310522526.1A CN201310522526A CN103557697A CN 103557697 A CN103557697 A CN 103557697A CN 201310522526 A CN201310522526 A CN 201310522526A CN 103557697 A CN103557697 A CN 103557697A
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- rotary kiln
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention discloses a novel rotary kiln. The novel rotary kiln comprises a rotary kiln barrel body (3), a feeding pipe (4), a cloth bag dust remover (7), a draught fan (8) and a chimney (10), wherein one side of an inlet end of the rotary kiln barrel body (3) is in sealing connection with one end of a waste heat boiler (5) while the other end of the waste heat boiler (5) is connected to an inlet end of a surface cooler (6); the outlet end of the surface cooler (6) is connected to the inlet end of the cloth bag dust remover (7); the outlet end of the cloth bag dust remover (7) is connected to an inlet end of a multilevel desulfurizing tower (9) through the draught fan (8); the outlet end of the multilevel desulfurizing tower (9) is connected to the bottom inlet of the chimney (10). The novel rotary kiln which utilizes the waste heat achieves good dust removal effect, and can realize emission on standard as the sulfur removal rate is more than 95%; meanwhile, the novel rotary kiln improves feeding speed, solves a smoking phenomenon, achieves 5-10% of the former retuned material amount, extremely improves the operating environment of the feeding hole of the rotary kiln, and improves production efficiency.
Description
Technical field
The invention belongs to non-ferrous metal metallurgy technical field, relate to a kind of New rotary kiln.
Background technology
Most rotary kiln, flue gas is all generally first to sink dirt, reenters sack cleaner, introduces chimney emptying by air-introduced machine.The flue gas of processing like this, sulfur content may exceed standard on the one hand, and on the other hand, when in sack cleaner, cloth bag breaks, it is serious that the chimney smokes.This two aspect all produces and has a strong impact on environment, under the requirement of current emphasis environmental protection, should thoroughly solve this two problems.
Meanwhile, when in prior art, most of rotary kiln ends are reinforced, due to the inhomogeneities that material falls, sometimes fast and sometimes slow, although the cylindrical shell steel plate of kiln hood one side has certain altitude, but there are many materials to rout up to expansion chamber or ash bucket from kiln hood end face.And most of kiln hood charge doors do not realize sealing, when reinforced, charge door can often be smoldered, and causes uncontrollable discharge, and environment is impacted.So need to change rotary kiln end, when reinforced to realize, material is not routed up, is not smoldered.Therefore, rotary kiln prior art also needs further perfect.
Summary of the invention
The object of the invention is to provide a kind of New rotary kiln, by the improvement to the layout designs of rotary kiln and rotary kiln end technology, mainly solves the low problem of flue gas treatment effeciency after the reinforced and rotary kiln baking of rotary kiln.
Technical scheme of the present invention: a kind of New rotary kiln, it comprises cylinder of rotary kiln, charge pipe, sack cleaner, air-introduced machine and chimney, entrance point one side and waste heat boiler one end of cylinder of rotary kiln are tightly connected, the other end of waste heat boiler is connected with the entrance point of surface-cooler, the port of export of surface-cooler is connected with the entrance point of sack cleaner, the port of export of sack cleaner is connected with the entrance point of Multistage desulfuration tower by air-introduced machine, and the port of export of Multistage desulfuration tower is connected with the bottom inlet of chimney.
Described charge pipe is connected with the top seal of waste heat boiler, the reinforced conduit of charge pipe enters in cylinder of rotary kiln by the import oblique cutting of cylinder of rotary kiln,, lower than the import extreme lower position of cylinder of rotary kiln, there is a gap reinforced conduit discharging opening position between reinforced conduit discharging opening and the refractory masonry of cylinder of rotary kiln bottom.
Described waste heat boiler is tightly connected by the entrance point of kiln seal apparatus and cylinder of rotary kiln, and the outside of waste heat boiler is provided with smoke pipe and is connected with one end of surface-cooler.
Described reinforced conduit discharging opening is concordant with the gradient of cylinder of rotary kiln, and the gap between the refractory masonry of cylinder of rotary kiln bottom is 5-10cm.
Between reinforced conduit discharging opening position and the entrance point of cylinder of rotary kiln, be provided with an annular striker plate.
With respect to cylinder of rotary kiln axially, the interior ring radius of annular striker plate is greater than the inlet radius of cylinder of rotary kiln, is less than the radial distance of reinforced conduit discharging opening.
The present invention, because expansion chamber has been used waste heat boiler, has reached the UTILIZATION OF VESIDUAL HEAT IN of flue gas.Owing to having adopted new-type pulsed jet cloth filter, its good dedusting effect, working service is easy.Owing to having adopted Multistage desulfuration tower, the sulfur removal rate in flue gas reaches more than 95%, and tail gas can qualified discharge.
The present invention utilizes and adopts loading machine to transport material to Belt Conveying, by belt conveyor, delivers to loading hopper, has promoted the reinforced do mechanization operation of rotary kiln, has improved the charging rate of rotary kiln, saves in a large number manpower labour cost.
The present invention reduces charge pipe, and charge pipe discharging opening is apart from the certain position of refractory masonry, and under charge pipe, edge is substantially concordant with the gradient of rotary kiln.Different because of material, charge pipe bottom is also different to the distance of refractory masonry, and general control is at 5-10cm, and this distance should be adjusted accordingly according to the humidity of added material, granularity, viscosity etc.After use, can there is not the phenomenon of smoldering in charge pipe again, fabulous improvement the operating environment of rotary kiln charge door.
The present invention is simultaneously at the annular striker plate of the appropriate location of cylinder of rotary kiln welding certain altitude, and this annular striker plate plate is placed on refractory masonry.Together with the import cylindrical shell steel plate of annular striker plate and cylinder of rotary kiln, formed stop gauge, played double-deck anti-material and return in waste heat boiler.During rotary kiln running, the returning charge amount in waste heat boiler obviously reduces, and returning charge amount 5～10% before being, has improved production efficiency.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 1 cylinder of rotary kiln entrance point.
In figure: burner 1, kiln tail 2, cylinder of rotary kiln 3, charge pipe 4, waste heat boiler 5, surface-cooler 6, sack cleaner 7, air-introduced machine 8, Multistage desulfuration tower 9, chimney 10; Kiln seal apparatus 1-1, smoke pipe 1-2, refractory masonry 1-3, annular striker plate 1-4.
The specific embodiment
The present invention can specifically implement by the technical scheme in summary of the invention, by the following examples can the invention will be further described.
Embodiment 1:
A kind of New rotary kiln, it comprises cylinder of rotary kiln 3, waste heat boiler 5, surface-cooler 6, sack cleaner 7, air-introduced machine 8, Multistage desulfuration tower 9 and chimney 10, the tail end of cylinder of rotary kiln 3 is burner 1 and kiln tail 2, entrance point one side and waste heat boiler 5 one end of cylinder of rotary kiln 3 are tightly connected, the other end of waste heat boiler 5 is connected with the entrance point of surface-cooler 6, the port of export of surface-cooler 6 is connected with the entrance point of sack cleaner 7, the port of export of sack cleaner 7 is connected with the entrance point of Multistage desulfuration tower 9 by air-introduced machine 8, the port of export of Multistage desulfuration tower 9 is connected with the bottom inlet of chimney 10.Feeding in raw material by belt conveyor convey materials to charge pipe of charge pipe 4.
Due to kiln hood high-temperature flue gas has out been adopted to waste heat boiler 5, enriched flue gas waste heat, can save many energy; Simultaneously larger waste heat boiler 5, has played again the effect of a good expansion chamber, and some larger flue dust are settled down, and alleviates the load of rear portion system.The more difficult rational control flue-gas temperature of waste heat boiler 5, so added a surface-cooler 6 after waste heat boiler, by the adjusting of surface-cooler 6, can make the flue-gas temperature that enters sack cleaner 7 reasonably be controlled at 150～200 ℃, the easier choice for use cloth bag of this temperature kind, and be difficult for dewfall, and can extend the cloth bag life-span, also improved dust collection effect simultaneously.Flue gas is introduced Multistage desulfuration tower 9 through air-introduced machine 8, due to what adopt, is Multistage desulfuration tower, so desulfuration efficiency is high, then the demister in desulfurizing tower, reduce and take away the water in tower.Flue gas has just reached qualified discharge standard like this, via chimney 10 high altitude discharges.
First by loading machine by material transportation to be processed hopper, material is dropped down onto on belt conveyor by hopper, by belt conveyor by mass transport to charge pipe 4, then fall in rotary kiln.So realize a reinforced process.
Described charge pipe 4 is connected with the top seal of waste heat boiler 5, the reinforced conduit of charge pipe 4 enters in cylinder of rotary kiln 3 by the import oblique cutting of cylinder of rotary kiln 3,, lower than the import extreme lower position of cylinder of rotary kiln 3, there is a gap reinforced conduit discharging opening position between reinforced conduit discharging opening and the refractory masonry 1-3 of cylinder of rotary kiln 3 bottoms.
Described waste heat boiler 5 is tightly connected by the entrance point of kiln seal apparatus 1-1 and cylinder of rotary kiln 3, and the outside of waste heat boiler 5 is provided with smoke pipe 1-2 and is connected with one end of surface-cooler 6.Smoke pipe 1-2 extreme lower position is higher than the import extreme lower position of cylinder of rotary kiln 3.
Described reinforced conduit discharging opening is concordant with the gradient of cylinder of rotary kiln 3, and the gap between the refractory masonry 1-3 of cylinder of rotary kiln 3 bottoms is 5-10cm.
Between reinforced conduit discharging opening position and the entrance point of cylinder of rotary kiln 3, be provided with an annular striker plate 1-4.
With respect to cylinder of rotary kiln 3 axially, the interior ring radius of annular striker plate 1-4 is greater than the inlet radius of cylinder of rotary kiln 3, is less than the radial distance of reinforced conduit discharging opening.
Between the top of charge pipe 4 and rotary kiln refractory masonry 1-3, because material forms sealing, flue gas is not emerged from charge pipe 4.
Between charge pipe 4 and waste heat boiler 5, rotary kiln seal apparatus 1-1, form a reinforced sealing area, flue gas can only be discharged and be connected with surface-cooler 6 through smoke pipe 1-2 by air-introduced machine.
Kiln seal apparatus 1-1 is the sealing of playing kiln hood, and it forms a sealing together with building brick by laying bricks or stones with kiln hood.Cylinder of rotary kiln 3 forms one with the refractory masonry 1-3 in kiln.During normal production, cylinder of rotary kiln 3 rotates together with refractory masonry 1-3 in kiln.
Annular striker plate 1-4 and the reinforced close together of leading discharging opening position.In charge pipe 4, ceaselessly have material to add, material falls to refractory masonry 1-3, so also form sealing in charge pipe, thereby flue gas can outwards not emerged from charge pipe 4 is interior, through the charge pipe of debugging, material can fall with certain speed smoothly, toward the direction of kiln tail 2, advances; When material is high to reinforced below surrounding heap of leading discharging opening, now annular striker plate 1-4 is the material resistance shelves near it, makes this part material as far as possible toward the direction operation of kiln tail 2.Even if there is few part, cross annular striker plate 1-4, and drop down onto between annular striker plate 1-4 and the entrance point of cylinder of rotary kiln 3, because the import of cylinder of rotary kiln 3 has certain altitude, and make this part material extremely difficulty drop down onto in waste heat boiler 5, thereby reduced the amount of the material returning charge of kiln hood.
Claims (6)
1. a New rotary kiln, it comprises cylinder of rotary kiln (3), charge pipe (4), sack cleaner (7), air-introduced machine (8) and chimney (10), it is characterized in that, entrance point one side of cylinder of rotary kiln (3) and waste heat boiler (5) one end are tightly connected, the other end of waste heat boiler (5) is connected with the entrance point of surface-cooler (6), the port of export of surface-cooler (6) is connected with the entrance point of sack cleaner (7), the port of export of sack cleaner (7) is connected with the entrance point of Multistage desulfuration tower (9) by air-introduced machine (8), the port of export of Multistage desulfuration tower (9) is connected with the bottom inlet of chimney (10).
2. a kind of New rotary kiln according to claim 1, it is characterized in that, described charge pipe (4) is connected with the top seal of waste heat boiler (5), the reinforced conduit of charge pipe (4) enters in cylinder of rotary kiln (3) by the import oblique cutting of cylinder of rotary kiln (3),, lower than the import extreme lower position of cylinder of rotary kiln (3), there is a gap reinforced conduit discharging opening position between reinforced conduit discharging opening and the refractory masonry (1-3) of cylinder of rotary kiln (3) bottom.
3. a kind of New rotary kiln according to claim 2, it is characterized in that, described waste heat boiler (5) is tightly connected by kiln seal apparatus (1-1) and the entrance point of cylinder of rotary kiln (3), and the outside of waste heat boiler (5) is provided with smoke pipe (1-2) and is connected with one end of surface-cooler (6).
4. a kind of New rotary kiln according to claim 2, is characterized in that, described reinforced conduit discharging opening is concordant with the gradient of cylinder of rotary kiln (3), and the gap between the refractory masonry (1-3) of cylinder of rotary kiln (3) bottom is 5-10cm.
5. a kind of New rotary kiln according to claim 1 and 2, is characterized in that, between reinforced conduit discharging opening position and the entrance point of cylinder of rotary kiln (3), is provided with an annular striker plate (1-4).
6. a kind of New rotary kiln according to claim 5, it is characterized in that, with respect to cylinder of rotary kiln (3) axially, the interior ring radius of annular striker plate (1-4) is greater than the inlet radius of cylinder of rotary kiln (3), is less than the radial distance of reinforced conduit discharging opening.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310522526.1A CN103557697B (en) | 2013-10-30 | 2013-10-30 | Novel rotary kiln |
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| CN201310522526.1A CN103557697B (en) | 2013-10-30 | 2013-10-30 | Novel rotary kiln |
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| CN103557697A true CN103557697A (en) | 2014-02-05 |
| CN103557697B CN103557697B (en) | 2015-07-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104667637A (en) * | 2015-03-04 | 2015-06-03 | 安徽池州博源非金属矿研发中心有限公司 | Rotary kiln flue gas purification device |
| CN106498151A (en) * | 2016-12-14 | 2017-03-15 | 江西自立环保科技有限公司 | A kind of adverse current calciner and the method for roasting based on the device |
| CN109304080A (en) * | 2018-04-08 | 2019-02-05 | 山西国峰煤电有限责任公司 | A kind of ultralow SO2The semidry-method recirculating fluidized bed flue gas desulphurization system of discharge |
| CN109764690A (en) * | 2019-01-10 | 2019-05-17 | 常州市震华干燥设备有限公司 | A kind of rotary kiln that can recycle raw material dust |
| CN111871187A (en) * | 2020-08-13 | 2020-11-03 | 迪尔集团有限公司 | Desulfurizing tower system and desulfurizing method |
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| CN201522188U (en) * | 2009-11-13 | 2010-07-07 | 宁夏华亿镁业股份有限公司 | Flame-isolated rotary kiln for calcining dolomite |
| CN201885549U (en) * | 2010-12-04 | 2011-06-29 | 交城义望铁合金有限责任公司 | Device for utilizing residual heat of high-temperature waste gas of kiln tail of rotary kiln |
| CN102616779A (en) * | 2011-10-25 | 2012-08-01 | 杭州星宇炭素科技有限公司 | Method for preventing material returning at feed end of rotary activated carbon activation furnace |
| JP2013015301A (en) * | 2011-07-06 | 2013-01-24 | Nihon Ex:Kk | Heat treatment device of moisture containing product |
| CN203518558U (en) * | 2013-10-30 | 2014-04-02 | 江西自立资源再生有限公司 | Novel rotary kiln |
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2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201522188U (en) * | 2009-11-13 | 2010-07-07 | 宁夏华亿镁业股份有限公司 | Flame-isolated rotary kiln for calcining dolomite |
| CN201885549U (en) * | 2010-12-04 | 2011-06-29 | 交城义望铁合金有限责任公司 | Device for utilizing residual heat of high-temperature waste gas of kiln tail of rotary kiln |
| JP2013015301A (en) * | 2011-07-06 | 2013-01-24 | Nihon Ex:Kk | Heat treatment device of moisture containing product |
| CN102616779A (en) * | 2011-10-25 | 2012-08-01 | 杭州星宇炭素科技有限公司 | Method for preventing material returning at feed end of rotary activated carbon activation furnace |
| CN203518558U (en) * | 2013-10-30 | 2014-04-02 | 江西自立资源再生有限公司 | Novel rotary kiln |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104667637A (en) * | 2015-03-04 | 2015-06-03 | 安徽池州博源非金属矿研发中心有限公司 | Rotary kiln flue gas purification device |
| CN106498151A (en) * | 2016-12-14 | 2017-03-15 | 江西自立环保科技有限公司 | A kind of adverse current calciner and the method for roasting based on the device |
| CN106498151B (en) * | 2016-12-14 | 2018-08-03 | 江西自立环保科技有限公司 | A kind of adverse current calciner and the method for roasting based on the device |
| CN109304080A (en) * | 2018-04-08 | 2019-02-05 | 山西国峰煤电有限责任公司 | A kind of ultralow SO2The semidry-method recirculating fluidized bed flue gas desulphurization system of discharge |
| CN109304080B (en) * | 2018-04-08 | 2024-01-05 | 山西国峰煤电有限责任公司 | Ultralow SO 2 Exhaust semi-dry circulating fluidized bed flue gas desulfurization system |
| CN109764690A (en) * | 2019-01-10 | 2019-05-17 | 常州市震华干燥设备有限公司 | A kind of rotary kiln that can recycle raw material dust |
| CN111871187A (en) * | 2020-08-13 | 2020-11-03 | 迪尔集团有限公司 | Desulfurizing tower system and desulfurizing method |
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| Publication number | Publication date |
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| CN103557697B (en) | 2015-07-15 |
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Address after: 344100, Fuzhou Linchuan District, Jiangxi Province North Fu Industrial Park Road Applicant after: JIANGXI SELF-INDEPENDENCE ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 344100, Fuzhou Linchuan District, Jiangxi Province North Fu Industrial Park Road Applicant before: Jiangxi Self-sustaining Resource Regeneration Co.,Ltd. |
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