CN103160625A - Utilization of heat slag sensible heat device by three-step method - Google Patents
Utilization of heat slag sensible heat device by three-step method Download PDFInfo
- Publication number
- CN103160625A CN103160625A CN201310069077XA CN201310069077A CN103160625A CN 103160625 A CN103160625 A CN 103160625A CN 201310069077X A CN201310069077X A CN 201310069077XA CN 201310069077 A CN201310069077 A CN 201310069077A CN 103160625 A CN103160625 A CN 103160625A
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- CN
- China
- Prior art keywords
- slag
- outlet
- granulation
- heat exchanger
- heat
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/026—Methods of cooling or quenching molten slag using air, inert gases or removable conductive bodies
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/062—Jet nozzles or pressurised fluids for cooling, fragmenting or atomising slag
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/08—Treatment of slags originating from iron or steel processes with energy recovery
Abstract
The invention relates to utilization of heat slag sensible heat device by a three-step method, which comprises a metallurgy slag notch (1), a granulation blower fan (2), a granulation warehouse (3) and a deduster (4), the metallurgy slag notch is connected to a slag trench of a metallurgy furnace (7), the granulation blower fan is positioned at the lower part of the metallurgy slag notch, the outlet of the metallurgy slag notch and the outlet of the granulation blower fan are connected to a granulation warehouse, the air outlet of the granulation warehouse is connected to the inlet of the deduster, the slag granule outlet of the granulation warehouse is connected to a slag heat exchanger, the outlet of the deduster and the outlet of the slag heat exchanger are connected to an air heat exchanger (6), and the outlet of the air heat exchanger is connected to the metallurgy slag notch. The invention uses the sensible heat of unused molten slag and its calorific value is fully used, an air cooling tower of an original system is reduce, the water resource is saved, the utilization of heat slag sensible heat device saves energy for the enterprises, reduces the cost and brings economic benefit, and increases the enterprise competitiveness.
Description
Technical field
The present invention relates to a kind of three-step approach and utilize hot slag sensible heat device, utilize the heat energy of original waste to produce superheated vapour.Belong to the energy-conserving and environment-protective fields.
Background technology
At present, the industry such as metallurgy, electric power have had the growth of advancing by leaps and bounds, and the consequent is that the generation of various industrial slags also will reach unprecedented quantity, adds other slag, and the generation total amount of 2005 years national industrial slags just can reach 3～3.5 hundred million tons.Comprising iron-smelting blast furnace slag, steel-smelting clinker, iron alloy slag, nonferrous smelting slag, power plant's cyclone combustion chamber slag tap etc., the tapping temperature of these slags reaches as high as 1500～1600 ℃ all 1300～1400 ℃ of left and right.Generally speaking, 1 ton of slag is about as much as with 1600～1800MJ heat the heat that produces after the perfect combustion of 55～61kg standard coal.If national industrial slag generation 3.5 hundred million was as Calculating Foundation take 2005, this part slag is not because utilizing its sensible heat, the heat energy of wasting roughly to be equivalent to 2,800 ten thousand tons of raw coal fully.Be converted into if add solid slag the energy that the secondary products such as cement, slag wool consume, its quantity is just more.Suppose that this a part of dross sensible heat all is utilized, although be not a lot of from energy-conservation absolute magnitude, account for greatly 1～2% of the whole nation year total energy consumption.Acquire a certain degree of difficulty owing to processing high-temperature molten, therefore produce in the past the various treatment process of taking and all can't reclaim the sensible heat of slag.But from energy-conservation viewpoint, it is very necessary reclaiming this a part of sensible heat and effectively being used.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide a kind of three-step approach to utilize hot slag sensible heat device, existing melting slag sensible heat is carried out thermal power transfer, finally produce the safe and reliable utilization of superheated vapour, improve the utilization ratio of the energy, reduce costs.
the object of the present invention is achieved like this: a kind of three-step approach is utilized hot slag sensible heat device, it comprises metallurgical ash shoot, the granulation blower fan, granulation storehouse and fly-ash separator, described metallurgical ash shoot is connected with the slag runner of metallurgical furnace, described granulation blower fan is positioned at the below of metallurgical ash shoot, the outlet of described metallurgical ash shoot and granulation blower fan all is connected with the granulation storehouse, the airout in described granulation storehouse is connected with the entrance of fly-ash separator, the slag particle outlet in described granulation storehouse is connected with the heat exchanger of slag, the outlet of described fly-ash separator all is connected with air heat exchanger with the outlet of the heat exchanger of slag, the outlet of described air heat exchanger is connected with metallurgical ash shoot.
Compared with prior art, the present invention has following beneficial effect:
The present invention utilizes existing untapped melting slag sensible heat to take full advantage of its calorific value by clustered pattern step by step, reduced original system air cooling tower, saved water resources, the higher-grade steam of output can be used for generating or other purposes simultaneously, brought economic benefit when reducing costs for enterprise's save energy, improve enterprise competitiveness, and met the policy requirements of national Iron And Steel Industry.
Description of drawings
Fig. 1 is structural representation of the present invention.
Wherein: metallurgical ash shoot 1
Fly-ash separator 4
The heat exchanger 5 of slag
Air heat exchanger 6
Metallurgical furnace 7.
Embodiment
referring to Fig. 1, the present invention relates to a kind of three-step approach and utilize hot slag sensible heat device, comprise metallurgical ash shoot 1, granulation blower fan 2, granulation storehouse 3 and fly-ash separator 4, described metallurgical ash shoot 1 is connected with the slag runner of metallurgical furnace 7, described granulation blower fan 2 is positioned at the below of metallurgical ash shoot 1, the outlet of described metallurgical ash shoot 1 and granulation blower fan 2 all is connected with granulation storehouse 3, slag particle and granulation slag air enter granulation storehouse 3 simultaneously, the airout in described granulation storehouse 3 is connected with the entrance of fly-ash separator 4, the slag particle outlet in described granulation storehouse 3 is connected with the heat exchanger 5 of slag, slag particle and granulation slag air in the granulation storehouse after 3 interior separation air enter fly-ash separator 4, the outlet of described fly-ash separator 4 all is connected with air heat exchanger 6 with the outlet of the heat exchanger of slag 5, the outlet of described air heat exchanger 6 is connected with metallurgical ash shoot 1, slag particle enters the heat exchanger 5 of slag, pass into warm water in the normal-temperature water generation in the heat exchanger 5 of slag, middle warm water and granulation slag air enter simultaneously air heat exchanger 6 and produce high-temperature water, high-temperature water enters metallurgical ash shoot, produce at last the higher-grade superheated vapour.
Claims (1)
1. a three-step approach is utilized hot slag sensible heat device, it is characterized in that it comprises metallurgical ash shoot (1), granulation blower fan (2), granulation storehouse (3) and fly-ash separator (4), described metallurgical ash shoot (1) is connected with the slag runner of metallurgical furnace (7), described granulation blower fan (2) is positioned at the below of metallurgical ash shoot (1), the outlet of described metallurgical ash shoot (1) and granulation blower fan (2) all is connected with granulation storehouse (3), the airout in described granulation storehouse (3) is connected with the entrance of fly-ash separator (4), the slag particle outlet in described granulation storehouse (3) is connected with the heat exchanger (5) of slag, the outlet of described fly-ash separator (4) all is connected with air heat exchanger (6) with the outlet of the heat exchanger (5) of slag, the outlet of described air heat exchanger (6) is connected with metallurgical ash shoot (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310069077XA CN103160625A (en) | 2013-03-05 | 2013-03-05 | Utilization of heat slag sensible heat device by three-step method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310069077XA CN103160625A (en) | 2013-03-05 | 2013-03-05 | Utilization of heat slag sensible heat device by three-step method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103160625A true CN103160625A (en) | 2013-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310069077XA Pending CN103160625A (en) | 2013-03-05 | 2013-03-05 | Utilization of heat slag sensible heat device by three-step method |
Country Status (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736101A (en) * | 2009-12-11 | 2010-06-16 | 中冶京诚工程技术有限公司 | Semi-wet slag treatment waste heat recovery generating system and method |
| CN101864504A (en) * | 2010-06-24 | 2010-10-20 | 陈瑞颖 | Method for raising air temperature of hot blast stove by recovering sensible heat of blast furnace slag |
| CN102162016A (en) * | 2011-03-11 | 2011-08-24 | 杭州锅炉集团股份有限公司 | Method and system for recovering high-temperature sensible heat of molten blast furnace slag |
| CN102433401A (en) * | 2011-12-20 | 2012-05-02 | 南京凯盛开能环保能源有限公司 | Melting furnace slag quenching dry type granulation and sensible heat recovery generating system and method using same |
| CN102851415A (en) * | 2012-09-24 | 2013-01-02 | 四川环能德美科技股份有限公司 | Recycling system of blast furnace slag heat |
-
2013
- 2013-03-05 CN CN201310069077XA patent/CN103160625A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736101A (en) * | 2009-12-11 | 2010-06-16 | 中冶京诚工程技术有限公司 | Semi-wet slag treatment waste heat recovery generating system and method |
| CN101864504A (en) * | 2010-06-24 | 2010-10-20 | 陈瑞颖 | Method for raising air temperature of hot blast stove by recovering sensible heat of blast furnace slag |
| CN102162016A (en) * | 2011-03-11 | 2011-08-24 | 杭州锅炉集团股份有限公司 | Method and system for recovering high-temperature sensible heat of molten blast furnace slag |
| CN102433401A (en) * | 2011-12-20 | 2012-05-02 | 南京凯盛开能环保能源有限公司 | Melting furnace slag quenching dry type granulation and sensible heat recovery generating system and method using same |
| CN102851415A (en) * | 2012-09-24 | 2013-01-02 | 四川环能德美科技股份有限公司 | Recycling system of blast furnace slag heat |
Non-Patent Citations (1)
| Title |
|---|
| 榊原路晤: "高炉炉渣显热综合回收技术的开发", 《国外钢铁》, no. 11, 30 November 1991 (1991-11-30), pages 15 - 20 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130619 |