CN1786639A - Method and equipment for applicating smoke residued heat of rotating kilm - Google Patents
Method and equipment for applicating smoke residued heat of rotating kilm Download PDFInfo
- Publication number
- CN1786639A CN1786639A CNA2004101555263A CN200410155526A CN1786639A CN 1786639 A CN1786639 A CN 1786639A CN A2004101555263 A CNA2004101555263 A CN A2004101555263A CN 200410155526 A CN200410155526 A CN 200410155526A CN 1786639 A CN1786639 A CN 1786639A
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- waste heat
- heat
- rotary kiln
- conducting oil
- flue
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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
Abstract
The invention discloses rotary kiln fume waster heat utilization method and equipment. It includes the following steps: setting low pressure waste-heat boiler and waste heat conducting oil furnace at the back of the rotary kiln; utilizing high temperature fume of the rotary kiln to heat water in waste heat boiler; heat exchanging between high temperature fume and conducting oil; discharging after cooled fume dusting. Dust sinking chamber flue of the waste heat boiler and rotary kiln are connected. And waster heat conducing oil furnace is set between two of formers. The dust sinking chamber flue of the latter is connected to commonality flue. The commonality flue is set high temperature flue valve. The invention has the advantages of effectively utilizing fume waste heat, simple structure, convenient operation, and reducing fuel cost and production cost.
Description
Technical field:
The present invention relates to be used in a kind of aluminium anode production system the method and apparatus that the fume afterheat of the rotary kiln of calcining petroleum coke utilizes.
Background technology:
In the aluminium anode production system, usually adopt calcining refinery coke by rotary kiln, rotary kiln tail flue gas temperature height, dustiness is big, for making full use of the fume afterheat of rotary kiln afterbody, and makes cooling high-temperature fume, dedusting, qualified discharge needs to be provided with UTILIZATION OF VESIDUAL HEAT IN equipment behind rotary kiln.
At present, the method commonly used to the utilization of rotary kiln fume afterheat is that waste heat boiler is set, and the method that waste heat boiler is set has two kinds, the one, low pressure waste heat boiler (p=1.25MPa) is set, the steam that waste heat boiler produced is used for plant produced, life, because process steam is less, under the situation that life also reduces with vapour, steam has only to airborne release, this moment, waste heat boiler reality only played the effect that makes flue gas ash removal, cooling, at southern area, owing to there is not heating, this phenomenon is particularly evident.Though the method is invested less, system is simple, under the situation that does not have the steam user, can not guarantee that waste heat can in full force and effectly utilize; The 2nd, inferior middle waste heat boiler (p=2.45MPa) and the Turbo-generator Set of pressing is set, waste heat boiler institute producing steam is except that using for plant produced, life, and residual steam is generated electricity by Turbo-generator Set.Though the method can guarantee waste heat and can in full force and effectly utilize that investment is big, system complex, and the thermal efficiency is not high.
Summary of the invention:
The objective of the invention is to: the method and apparatus that provides a kind of fume afterheat that can make rotary kiln to be utilized by utilization in full force and effect and small investment, the simple rotary kiln fume afterheat of system architecture, to overcome above-mentioned the deficiencies in the prior art.
The present invention is achieved in that
The method of rotary kiln fume afterheat of the present invention utilization is: it is provided with the low pressure waste heat boiler after being included in rotary kiln, and the high-temperature flue gas that utilizes rotary kiln to come out enters waste heat boiler, water generates steam in the heating waste heat boiler, behind rotary kiln, also be provided with the waste heat heat-conducting oil furnace simultaneously, the high-temperature flue gas that rotary kiln is come out enters into the waste heat heat-conducting oil furnace, make the conduction oil in high-temperature flue gas and the heat-conducting oil furnace carry out heat exchange, conduction oil is heated, flue gas after the cooling enters atmosphere after dust removal process.
The equipment of rotary kiln fume afterheat of the present invention utilization is: it comprises rotary kiln (15), heavy grey chamber flue (1) behind the rotary kiln (15) and the waste heat boiler (2) that links to each other with heavy grey chamber flue (1), behind waste heat boiler (2), be provided with waste heat boiler deduster (11), the smoke discharging pipe (16) of waste heat boiler deduster (11) links to each other with waste heat boiler smoke evacuation house steward (13), waste heat boiler smoke evacuation house steward (13) communicates with waste heat boiler chimney (14), it is characterized in that: between two waste heat boilers (2), be provided with waste heat heat-conducting oil furnace (7), be provided with waste heat heat-conducting oil furnace deduster (8) behind waste heat heat-conducting oil furnace (7), the smoke discharging pipe (17) of waste heat heat-conducting oil furnace deduster (8) communicates with waste heat heat-conducting oil furnace chimney (10); Between the heavy grey chamber of every rotary kiln (15) flue (1), be connected with public flue (4), heavy grey chamber flue (1) junction at public flue (4) and every rotary kiln (15) is provided with high-temperature flue valve (3), and waste heat heat-conducting oil furnace (7) links to each other with public flue (4) by its stokehold flue (5); On the smoke discharging pipe (17) of waste heat heat-conducting oil furnace deduster (8), be provided with waste heat heat-conducting oil furnace air-introduced machine (9), on the smoke discharging pipe (16) of waste heat boiler deduster (11), be provided with waste heat boiler air-introduced machine (12).
Owing to adopted technique scheme, the high-temperature flue gas that is come out by rotary kiln enters waste heat boiler by a flue part, another part enters the waste heat heat-conducting oil furnace, the interior steam that water produced of high-temperature flue gas heating waste heat boiler that enters waste heat boiler is used for plant produced, life, and the high-temperature flue gas that enters the waste heat heat-conducting oil furnace heats conduction oil, directly waste heat is used for explained hereafter, makes the fume afterheat of rotary kiln obtain effective utilization.In general heat-conducting oil heating station, heat transfer oil heater is used fuel such as coal gas, natural gas or heavy oil always and is heated conduction oil by burning, because links such as the manufacturing of fuel, transportation, storage need take more place, and surging along with world petroleum price, cause that fuel cost increases, and has strengthened operating cost.With fume afterheat heat-conducting oil heating has not only been saved fuel cost, reduced cost, and its system architecture is simple, convenient operating maintenance, has also reduced floor space.If conduction oil does not utilize the high-temperature flue gas heating, and uses other fuel heating, then Mei Nian fuel cost can reach millions of units.Factory with annual output 160kt prebaked anode is an example, if heat transfer oil heater is done fuel with heavy oil, and the annual heavy oil 3500t that consumes, fuel cost is up to about 6,000,000 yuan.So not only solved the low pressure waste heat boiler only has been set, make the energy dissipation of toing many or too much for use and causing because of steam, also solved because of press in being provided with time investment that waste heat boiler (p=2.45MPa) and Turbo-generator Set cause greatly, the shortcoming of system complex, but also the fuel cost of having saved heat transfer oil heater greatly reduces production cost.Therefore, the present invention compared with prior art has that the fume afterheat that can effectively utilize rotary kiln and system architecture are simple, a convenient operating maintenance, the fuel cost of having saved heat transfer oil heater, greatly reduces the advantage of production cost.
Description of drawings:
Accompanying drawing 1 is an equipment configuration schematic diagram of the present invention.
The specific embodiment:
Embodiments of the invention: as shown in Figure 1, waste heat boiler (2) is connected on the heavy grey chamber flue (1) behind the rotary kiln (15), waste heat boiler deduster (11) is set behind waste heat boiler (2), and on the smoke discharging pipe (16) of waste heat boiler deduster (11), a waste heat boiler air-introduced machine (12) is set, can enter into waste heat boiler smoke evacuation house steward (13) smoothly to guarantee high-temperature flue gas.The smoke discharging pipe (16) of waste heat boiler (2) is linked to each other with waste heat boiler smoke evacuation house steward (13), on waste heat boiler smoke evacuation house steward (13), waste heat boiler chimney (14) is set; Waste heat heat-conducting oil furnace (7) is set between two waste heat boilers (2) then, waste heat heat-conducting oil furnace deduster (8) is set behind waste heat heat-conducting oil furnace (7), and on the smoke discharging pipe (17) of waste heat heat-conducting oil furnace deduster (8), waste heat heat-conducting oil furnace air-introduced machine (9) is set, to guarantee that flue gas enters into waste heat heat-conducting oil furnace chimney (10) smoothly, the smoke discharging pipe (17) of waste heat heat-conducting oil furnace deduster (8) communicates with waste heat heat-conducting oil furnace chimney (10).In anode production, more than one of the quantity of rotary kiln (15), no matter for guaranteeing any platform rotary kiln (15) production, all there is high-temperature flue gas to pass through waste heat heat-conducting oil furnace (2), a public flue (4) is set between the heavy grey chamber of every rotary kiln (15) flue (1), and a high-temperature flue valve (3) being set in heavy grey chamber flue (1) junction of public flue (4) and every rotary kiln (15), waste heat heat-conducting oil furnace (7) links to each other with public flue (4) by its stokehold flue (5).
During work, the part high-temperature flue gas that is come out by the heavy grey chamber flue (1) of rotary kiln (15) enters public flue (4) by high-temperature flue valve (3), pass through the stokehold flue (5) of waste heat heat-conducting oil furnace (7) again, stokehold chimney valve (6) enters waste heat heat-conducting oil furnace (7), in waste heat heat-conducting oil furnace (7), high-temperature flue gas and conduction oil carry out heat exchange, flue-gas temperature reduces, the conduction oil temperature raises, conduction oil after the intensification is sent to the user, flue gas after the cooling is by after waste heat heat-conducting oil furnace deduster (8) dedusting, through the smoke discharging pipe (17) of waste heat heat-conducting oil furnace deduster (8), send into waste heat heat-conducting oil furnace chimney (10) by air-introduced machine (9), enter atmosphere.All the other high-temperature flue gas are by waste heat boiler (2), make it to produce steam, use for producing, living, and the flue gas after the cooling enters waste heat boiler deduster (11), smoke discharging pipe (16) through waste heat boiler deduster (11) is sent to by waste heat boiler air-introduced machine (12) among the waste heat boiler smoke evacuation house steward (13) again, enters atmosphere by waste heat boiler chimney (14).
Waste heat heat-conducting oil furnace (7) can be one, but is not limited to one.Along with the unlatching of high-temperature flue valve (3) or close, during arbitrary rotary kiln running, all there is high-temperature flue gas to enter public flue (4), guaranteed the normal operation of waste heat heat-conducting oil furnace (7).
Claims (3)
1. the method utilized of a rotary kiln fume afterheat, it is provided with the low pressure waste heat boiler after being included in rotary kiln, and the high-temperature flue gas that utilizes rotary kiln to come out enters waste heat boiler, water generates steam in the heating waste heat boiler, it is characterized in that: behind rotary kiln, also be provided with the waste heat heat-conducting oil furnace simultaneously, the high-temperature flue gas that rotary kiln is come out enters into the waste heat heat-conducting oil furnace, make the conduction oil in high-temperature flue gas and the heat-conducting oil furnace carry out heat exchange, conduction oil is heated, flue gas after the cooling enters atmosphere after dust removal process.
2. the equipment that utilizes of a rotary kiln fume afterheat, it comprises rotary kiln (15), heavy grey chamber flue (1) behind the rotary kiln (15) and the waste heat boiler (2) that links to each other with heavy grey chamber flue (1), behind waste heat boiler (2), be provided with waste heat boiler deduster (11), the smoke discharging pipe (16) of waste heat boiler deduster (11) links to each other with waste heat boiler smoke evacuation house steward (13), waste heat boiler smoke evacuation house steward (13) communicates with waste heat boiler chimney (14), it is characterized in that: between two waste heat boilers (2), be provided with waste heat heat-conducting oil furnace (7), be provided with waste heat heat-conducting oil furnace deduster (8) behind waste heat heat-conducting oil furnace (7), the smoke discharging pipe (17) of waste heat heat-conducting oil furnace deduster (8) communicates with waste heat heat-conducting oil furnace chimney (10); Between the heavy grey chamber of every rotary kiln (15) flue (1), be connected with public flue (4), heavy grey chamber flue (1) junction at public flue (4) and every rotary kiln (15) is provided with high-temperature flue valve (3), and waste heat heat-conducting oil furnace (7) links to each other with public flue (4) by its stokehold flue (5).
3. the equipment that rotary kiln fume afterheat according to claim 2 utilizes, it is characterized in that: on the smoke discharging pipe (17) of waste heat heat-conducting oil furnace deduster (8), be provided with waste heat heat-conducting oil furnace air-introduced machine (9), on the smoke discharging pipe (16) of waste heat boiler deduster (11), be provided with waste heat boiler air-introduced machine (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101555263A CN100439846C (en) | 2004-12-10 | 2004-12-10 | Method and equipment for applicating smoke residued heat of rotating kilm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101555263A CN100439846C (en) | 2004-12-10 | 2004-12-10 | Method and equipment for applicating smoke residued heat of rotating kilm |
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| CN1786639A true CN1786639A (en) | 2006-06-14 |
| CN100439846C CN100439846C (en) | 2008-12-03 |
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| CNB2004101555263A Active CN100439846C (en) | 2004-12-10 | 2004-12-10 | Method and equipment for applicating smoke residued heat of rotating kilm |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102317730A (en) * | 2008-12-23 | 2012-01-11 | 意大利水泥股份公司 | Improved apparatus for the production of clinker from raw meal and relative process |
| CN102410741A (en) * | 2011-11-14 | 2012-04-11 | 张秋玲 | Energy-saving system integrating kiln and heat transfer oil furnace and provided with flue dust separation device |
| CN104501611A (en) * | 2015-01-19 | 2015-04-08 | 聊城科创节能设备有限公司 | Energy-saving system and energy-saving method of smoke circular type kiln |
| CN108036288A (en) * | 2017-11-20 | 2018-05-15 | 江苏太湖锅炉股份有限公司 | The crossed configuration of more waste heat boilers |
| CN109340805A (en) * | 2018-10-25 | 2019-02-15 | 四川杰瑞恒日天然气工程有限公司 | One kind being based on gas electricity generator fume afterheat step comprehensive utilization device |
| CN114608331A (en) * | 2022-01-27 | 2022-06-10 | 大冶有色金属有限责任公司 | Heat preservation and furnace drying device and heat preservation and furnace drying method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243021B (en) * | 2010-05-10 | 2013-04-24 | 中国石油天然气股份有限公司 | Heat conducting oil smoke residual heat recovery method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3025823A1 (en) * | 1980-07-04 | 1982-02-11 | W. Strikfeldt & Koch Gmbh, 5276 Wiehl | Furnace, esp. for melting or holding metals - where exhaust gas duct contains heat exchanger mounted on pivots and is used to preheat air of combustion fed to furnace burner |
| CN2401693Y (en) * | 1999-09-03 | 2000-10-18 | 青岛旭日节能设备有限公司 | Energy source temp. potential converting type heater by utilizing waste heat of reinjected waste water in oil production |
| CN2807180Y (en) * | 2005-04-26 | 2006-08-16 | 贵阳铝镁设计研究院 | Smoke residual heat utilization apparatus for rotary kiln |
-
2004
- 2004-12-10 CN CNB2004101555263A patent/CN100439846C/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102317730A (en) * | 2008-12-23 | 2012-01-11 | 意大利水泥股份公司 | Improved apparatus for the production of clinker from raw meal and relative process |
| CN102410741A (en) * | 2011-11-14 | 2012-04-11 | 张秋玲 | Energy-saving system integrating kiln and heat transfer oil furnace and provided with flue dust separation device |
| CN104501611A (en) * | 2015-01-19 | 2015-04-08 | 聊城科创节能设备有限公司 | Energy-saving system and energy-saving method of smoke circular type kiln |
| CN104501611B (en) * | 2015-01-19 | 2016-05-04 | 聊城科创节能设备有限公司 | Smoke gas circulating type saving energy in kiln system and power-economizing method |
| CN108036288A (en) * | 2017-11-20 | 2018-05-15 | 江苏太湖锅炉股份有限公司 | The crossed configuration of more waste heat boilers |
| CN109340805A (en) * | 2018-10-25 | 2019-02-15 | 四川杰瑞恒日天然气工程有限公司 | One kind being based on gas electricity generator fume afterheat step comprehensive utilization device |
| CN114608331A (en) * | 2022-01-27 | 2022-06-10 | 大冶有色金属有限责任公司 | Heat preservation and furnace drying device and heat preservation and furnace drying method |
| CN114608331B (en) * | 2022-01-27 | 2024-02-23 | 大冶有色金属有限责任公司 | Heat preservation and baking device and heat preservation and baking method |
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| Publication number | Publication date |
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| CN100439846C (en) | 2008-12-03 |
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Owner name: GUIYANG ALUMINUM AND MAGNESIUM DESIGN INSTITUTE CO Free format text: FORMER OWNER: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INST. Effective date: 20110707 |
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Free format text: CORRECT: ADDRESS; FROM: 550004 NO. 208, BEIJING ROAD, GUIYANG CITY, GUIZHOU PROVINCE TO: 550081 NO.2, JINZHU ROAD, JINYANG NEW DISTRICT, GUIYANG CITY |
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Effective date of registration: 20110707 Address after: 550081 2 Jin Zhu Road, Jinyang New District, Guiyang Patentee after: Guiyang Aluminum & Magnesium Design Institute Co., Ltd. Address before: 550004 No. 208, Beijing Road, Guiyang, Guizhou Patentee before: Guiyang Aluminium and Magnesium Design Inst. |