CN106521057A - Device for recovering waste heat from steel slag pit hot stewing treatment - Google Patents
Device for recovering waste heat from steel slag pit hot stewing treatment Download PDFInfo
- Publication number
- CN106521057A CN106521057A CN201611090662.8A CN201611090662A CN106521057A CN 106521057 A CN106521057 A CN 106521057A CN 201611090662 A CN201611090662 A CN 201611090662A CN 106521057 A CN106521057 A CN 106521057A
- Authority
- CN
- China
- Prior art keywords
- heat
- stewing
- stirling engine
- slag pit
- recovery device
- 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.)
- Granted
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- 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
- Y02P10/20—Recycling
-
- 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 a device for recovering waste heat from steel slag pit hot stewing treatment. The device comprises a hot stewing pool and a hot stewing cover, wherein Stirling engines are arranged on the hot stewing cover; cold cavities of the Stirling engines are arranged outside the hot stewing cover; and hot cavities of the Stirling engines are arranged inside the hot stewing cover. The device disclosed by the invention has the following advantages: the heat energy of steel slag is effectively recycled, the circumstance that the heat energy of the steel slag is converted into steam and the steam is utilized for power generation is not needed, and then the energy conversion loss is reduced; the system process is short, the adopted equipment is simple, the maintenance demand is high, the failure rate is low and the reliability is high; the temperature application scope is broad; and more heat energy is recovered, that is, the recovery rate is high.
Description
Technical field
The present invention relates to metallurgical and energy recovery technical field, particularly relates to a kind of stewing process waste heat recovery of slag pit heat
Device.
Background technology
With the development and the growth of Steel demand amount of China's steel and iron industry, slag is used as the pair in steel manufacture process
Product, its discharge capacity also increase year by year.As its discharge temperature is high, yield is big, if rational process and in addition can not be carried out
Utilize, be not only the significant wastage to secondary resource and the energy, but also very big pollution can be caused to environment, therefore, slag
Problem of complex utilization gradually cause the attention of China steel industry colleague.
The molten steel slag temperature discharged in steelmaking process contains heat about 2000MJ/t up to 1450～1650 DEG C, equivalent to
61kg standard coals, belong to high-quality residual heat resources, great value of exploiting and utilizing.However, the country is with regard to slag heat recovery at present
Seldom, the heat recovery technology of slag is also immature, and existing handling process has respective pluses and minuses for the research of aspect.In the energy
In the epoch that are nervous, advocating synthesis energy, the high efficiente callback of steel slag waste heat how is realized, be that Iron and Steel Enterprises in China pays high attention to
One of research topic, while and a global advanced subject and technical barrier.Therefore, more than Study on Acceleration exploitation slag
Recuperation of heat is a current steel and iron industry important subject urgently to be resolved hurrily using technology.
The content of the invention
Present invention aim to providing, a kind of slag pit heat is stewing to process waste-heat recovery device, which is without using steam
Generating electricity, simple structure, temperature applicable range are wide, it is adaptable to the interruption mode of production of slag processing for turbine.
For achieving the above object, a kind of stewing process waste-heat recovery device of slag pit heat designed by the present invention, including heat
Stewing pond and the stewing lid of heat, stewing the covering of the heat are provided with Stirling engine, and the cold chamber of the Stirling engine is arranged on the stewing lid of heat
Outside, the hot chamber of the Stirling engine are arranged on the stewing lid inner side of heat.
Further, stewing the covering of the heat is provided with cold water pipe, and the cold water pipe flows through the cold chamber of Stirling engine.
Further, conducting strip is provided with the cold chamber, the cold water pipe flows through conducting strip.
Further, metallic network of pipelines is provided with outside the hot chamber, the hot chamber is arranged in metallic network of pipelines.
Used as preference, the Stirling engine is provided with multiple stage, and the multiple stage Stirling engine is evenly distributed on heat
It is stewing to cover.
Used as preference, the cold water pipe is divided into multiple Zhi Liuguan, and described each flow tube flows through each Stirling and starts
The conducting strip of machine.
Used as preference, the metallic network of pipelines connects the hot chamber of each Stirling engine.
It is an advantage of the current invention that：Effective recycling slag heat energy, comes again without the need for slag heat energy is changed into water vapour
Generated electricity using water vapour, reduce energy conversion loss；System flow is short, and equipment is simple, and maintenance is little, and fault rate is little, reliability
It is high；Temperature applicable range is wide；Multiple spot reclaims heat energy, and the rate of recovery is high.
Description of the drawings
Fig. 1 is the use state schematic diagram of the present invention；
Wherein：The stewing pond 1 of heat, heat stewing lid 2, Stirling engine 3 are (wherein：Cold chamber 3.1, hot chamber 3.2), 4 (its of cold water pipe
In：Zhi Liuguan 4.1), conducting strip 5, metallic network of pipelines 6, spray head 7.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
As shown in figure 1, the stewing waste-heat recovery device that processes of slag pit heat of the present invention includes the stewing pond 1 of heat and the stewing lid 2 of heat, heat is stewing
Lid 2 is provided with Stirling engine 3, and the cold chamber 3.1 of Stirling engine 3 is arranged on the outside of the stewing lid 2 of heat, Stirling engine 3
Hot chamber 3.2 be arranged on the inside of the stewing lid 2 of heat.
Further, the stewing lid 2 of heat is provided with cold water pipe 4, and cold water pipe 4 flows through the cold chamber 3.1 of Stirling engine 3.Cold chamber
Conducting strip 5 is provided with 3.1, cold water pipe 4 flows through conducting strip 5.Metallic network of pipelines 6 is provided with outside hot chamber 3.2, hot chamber 3.2 is arranged on gold
In category pipe network 6.
Stirling engine 3 is provided with multiple stage, and multiple stage Stirling engine 3 is evenly distributed on the stewing lid 2 of heat.4 points of cold water pipe
For multiple Zhi Liuguan 4.1, each flow tube 4.1 flows through the conducting strip 5 of each Stirling engine 3.Metallic network of pipelines 6 connects each
The hot chamber 3.2 of Stirling engine 3.
When actually used：
Multiple stage Stirling engine 3 is mounted on the stewing lid 2 of heat, when outside cooling water is boiled in a covered pot over a slow fire by cold water pipe 4 and heat
When the spray head 7 of 2 bottom of lid is sprayed water, the cold chamber 3.1 of multiple stage Stirling engine 3 must be flowed through, and by the conducting strip in cold chamber 3.1
5 coolings；The hot chamber 3.2 of Stirling engine 3 is inserted in closed metal pipe network 6, when making 3.2 outer surface of hot chamber not contact hot stewing
Vapor, and pass through the hot gas in the metal tube heating tube of closed metal pipe network 6, hot gas delivers heat to hot chamber 3.2 again.
When the stewing slag of heat, steam heating heat when slag radiant heat energy or stewing water spray heat passes metallic network of pipelines 6, then conducts heat
To the hot chamber 3.2 of Stirling engine 3, cold chamber 3.1 and the gas temperature difference in hot chamber 3.2 are formed, Stirling engine 3 is driven
Operating, then electrical power generators are driven by Stirling engine 3.
The above is presently preferred embodiments of the present invention, not limits the practical range of invention with this, all according to the present invention
Shape, construction and the equivalence changes made of principle, all should cover within the scope of the present invention.
Claims (7)
1. a kind of slag pit heat is stewing processes waste-heat recovery device, including heat stewing pond (1) and the stewing lid (2) of heat, it is characterised in that institute
State the stewing lid (2) of heat and be provided with Stirling engine (3), the cold chamber (3.1) of the Stirling engine (3) is arranged on the stewing lid of heat
(2), on the outside of, the hot chamber (3.2) of the Stirling engine (3) is arranged on the inside of the stewing lid (2) of heat.
2. slag pit heat according to claim 1 is stewing processes waste-heat recovery device, it is characterised in that the heat boils in a covered pot over a slow fire lid
(2) cold water pipe (4) is provided with, the cold water pipe (4) flows through the cold chamber (3.1) of Stirling engine (3).
3. slag pit heat according to claim 2 is stewing processes waste-heat recovery device, it is characterised in that the cold chamber
(3.1) conducting strip (5) is provided with, the cold water pipe (4) flows through conducting strip (5).
4. slag pit heat according to claim 3 is stewing processes waste-heat recovery device, it is characterised in that the hot chamber
(3.2) metallic network of pipelines (6) is provided with outside, the hot chamber (3.2) is arranged in metallic network of pipelines (6).
5. the slag pit heat according to any one in Claims 1 to 4 is boiled in a covered pot over a slow fire and processes waste-heat recovery device, and its feature exists
In the Stirling engine (3) is provided with multiple stage, and the multiple stage Stirling engine (3) is evenly distributed on the stewing lid (2) of heat.
6. slag pit heat according to claim 5 is stewing processes waste-heat recovery device, it is characterised in that the cold water pipe
(4) it is divided into multiple Zhi Liuguan (4.1), each flow tube (4.1) flows through the conducting strip (5) of each Stirling engine (3).
7. the slag pit heat according to claim 5 or 6 is boiled in a covered pot over a slow fire and processes waste-heat recovery device, it is characterised in that the metal
Pipe network (6) connects the hot chamber (3.2) of each Stirling engine (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090662.8A CN106521057B (en) | 2016-11-30 | 2016-11-30 | The stewing processing waste-heat recovery device of steel slag pit heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090662.8A CN106521057B (en) | 2016-11-30 | 2016-11-30 | The stewing processing waste-heat recovery device of steel slag pit heat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106521057A true CN106521057A (en) | 2017-03-22 |
| CN106521057B CN106521057B (en) | 2019-04-19 |
Family
ID=58354115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611090662.8A Active CN106521057B (en) | 2016-11-30 | 2016-11-30 | The stewing processing waste-heat recovery device of steel slag pit heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106521057B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107287369A (en) * | 2017-05-22 | 2017-10-24 | 中冶南方工程技术有限公司 | Air-cooled metallurgical slag treatment apparatus |
| CN107723394A (en) * | 2017-10-10 | 2018-02-23 | 中冶南方工程技术有限公司 | Mix aerosol apparatus for treating steel slags |
| CN113462830A (en) * | 2021-07-09 | 2021-10-01 | 内蒙古高等级公路建设开发有限责任公司 | Hot slag cracking processing device |
| CN113699289A (en) * | 2021-08-31 | 2021-11-26 | 中冶华天南京工程技术有限公司 | Method for recovering waste heat in molten steel slag treatment process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202793040U (en) * | 2012-08-03 | 2013-03-13 | 北京硕人海泰能源环境技术有限公司 | Liquid slag waste heat recovery unit |
| CN103667554A (en) * | 2013-12-26 | 2014-03-26 | 北京中冶设备研究设计总院有限公司 | Device and method for recycling and treating waste heat of high-temperature steel slag |
| CN104653329A (en) * | 2013-11-17 | 2015-05-27 | 成都奥能普科技有限公司 | Heat accumulating type stirling generator set and mobile unit |
| CN206319024U (en) * | 2016-11-30 | 2017-07-11 | 中冶南方工程技术有限公司 | The stewing processing waste-heat recovery device of slag pit heat |
-
2016
- 2016-11-30 CN CN201611090662.8A patent/CN106521057B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202793040U (en) * | 2012-08-03 | 2013-03-13 | 北京硕人海泰能源环境技术有限公司 | Liquid slag waste heat recovery unit |
| CN104653329A (en) * | 2013-11-17 | 2015-05-27 | 成都奥能普科技有限公司 | Heat accumulating type stirling generator set and mobile unit |
| CN103667554A (en) * | 2013-12-26 | 2014-03-26 | 北京中冶设备研究设计总院有限公司 | Device and method for recycling and treating waste heat of high-temperature steel slag |
| CN206319024U (en) * | 2016-11-30 | 2017-07-11 | 中冶南方工程技术有限公司 | The stewing processing waste-heat recovery device of slag pit heat |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107287369A (en) * | 2017-05-22 | 2017-10-24 | 中冶南方工程技术有限公司 | Air-cooled metallurgical slag treatment apparatus |
| CN107287369B (en) * | 2017-05-22 | 2019-12-10 | 中冶南方工程技术有限公司 | Air-cooled metallurgical sediment processing apparatus |
| CN107723394A (en) * | 2017-10-10 | 2018-02-23 | 中冶南方工程技术有限公司 | Mix aerosol apparatus for treating steel slags |
| CN113462830A (en) * | 2021-07-09 | 2021-10-01 | 内蒙古高等级公路建设开发有限责任公司 | Hot slag cracking processing device |
| CN113462830B (en) * | 2021-07-09 | 2022-04-29 | 内蒙古高等级公路建设开发有限责任公司 | Hot slag cracking processing device |
| CN113699289A (en) * | 2021-08-31 | 2021-11-26 | 中冶华天南京工程技术有限公司 | Method for recovering waste heat in molten steel slag treatment process |
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| Publication number | Publication date |
|---|---|
| CN106521057B (en) | 2019-04-19 |
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