CN1190503C - Cooling wall of blast furnace and its making technology - Google Patents
Cooling wall of blast furnace and its making technology Download PDFInfo
- Publication number
- CN1190503C CN1190503C CNB001105310A CN00110531A CN1190503C CN 1190503 C CN1190503 C CN 1190503C CN B001105310 A CNB001105310 A CN B001105310A CN 00110531 A CN00110531 A CN 00110531A CN 1190503 C CN1190503 C CN 1190503C
- Authority
- CN
- China
- Prior art keywords
- cooling
- stave
- blast furnace
- cooling tube
- cooling stave
- 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.)
- Expired - Fee Related
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Blast Furnaces (AREA)
Abstract
The present invention relates to a blast furnace cooling wall and a manufacturing technique thereof. The blast furnace cooling wall is composed of a cooling wall of which the inner part is provided with a cooling pipe; the cooling wall and the cooling pipe are made of copper; the outside of the cooling wall is provided with a slag adhering rib; the outside of the slag adhering rib is coated with a refractory coating; when the cooling wall is cast, antioxidation cooling media are added in the cooling pipe; the media are nitrogen or carbonate and have safety and good cooling effect in use. The present invention solves the problems that the original casting copper cooling wall breaks, and alloy pipes are added in a casting process to make the price high. The blast furnace cooling wall is worth generalizing and applying.
Description
The present invention relates to a kind of cooling stave and manufacturing process of blast-furnace smelting blast furnace.
At present, add cooling tube in the employing ironcasting that the blast furnace cooling stave of using on the blast furnace has, water coolant is led in more advanced using in the boring of cast copper base, and cast iron and cast copper rupture easily, more advanced directly casts compo pipe in the casting in bronze base, prevent that cooling stave fracture water coolant from entering in the stove, but the compo pipe cost is too high, simultaneously, compo pipe is different with fusing point, the zero pour of copper, the expanded by heating rate is also different during application, and the compo pipe thermal conductivity is low, influences cooling performance.Application number is 96117844.2 to disclose a kind of " production technique of casting brasses ", is to be placed on and to water cast copper water in the sand mold and make brasses adding entry in the copper tube.Fusing point, the zero pour of compo pipe and copper are different though this technology has solved, have certain clearance between casting back cast copper and the compo pipe, the equal problem of expanded by heating rate, thermal conductivity when using, but this casting technique exists deficiency, in case copper tube defectiveness or copper water temp are too high in the castingprocesses, yielding or the fusing of cooling tube, simultaneously, film boiling easily takes place in the water in the copper pipe, causes the copper pipe corrode, if water is seeped in the copper liquid serious accident will take place.
In addition, existing cooling stave structurally also exists certain problem, and the outside of cooling stave needs to add refractory brick, i.e. influence is conducted heat to influence again and built the slag furnace retaining.
The purpose of this invention is to provide a kind of novel blast-furnace cooling stave and manufacturing process, to solve the problem that cooling stave conducts heat and the cooling stave manufacturing processed exists.
Concrete scheme of the present invention is such, and cooling stave is to be made by the interior cooling stave of establishing cooling tube, and cooling stave and cooling tube all adopt copper, and cooling stave is provided with slag hanging ribbed bar outward, and the slag hanging ribbed bar outside scribbles fire-resistant coating.
Cooling stave cooling tube of the present invention is a U-shaped, adds 4～6 cooling tubes in the every cooling stave, and pipe is apart from being 200mm～230mm, and thickness of pipe is 6mm～8mm.Cooling tube and tube head place, body of heater junction are provided with ripple expansion compensation device.
The present invention adds anti-oxidation heat-eliminating medium in the cooling tube when making cooling stave.
The present invention is before casting in its method of anti-oxidation heat-eliminating medium that manufacturing processed adopts, add anti-oxidation heat-eliminating medium carbonate in the cooling tube, its method is preceding with the rare gas element nitrogen that fills up, tamps labile carbonate in the U type pipe or fed cooling, anti-oxidation effect in cooling tube for casting, the power that feeds nitrogen pressure is 0.6Mpa～0.8Mpa, and flow is 600m
3/ h～700m
3/ h, the 20min～30min that still ventilates after the casting, quality is even, dense when guaranteeing that cooling stave solidifies.
Advantage of the present invention is:
1. adopted the cooling tube identical, solved cast copper cooling wall fracture and compo pipe problem of ultra-high price with the cooling stave base.
2. in pipe, add nitrogen or carbonate when casting as heat-eliminating medium safety and good cooling results.
3. the cooling stave strand is cast with slag hanging ribbed bar outward, helps the formation of outside refractory paint layer.
Below in conjunction with accompanying drawing specific embodiments of the invention are illustrated.
Accompanying drawing is a structural representation of the present invention.
As shown in the figure: the present invention is made by the interior cooling stave 1 of establishing cooling tube 2, and be characterized in: cooling stave 1 and cooling tube 2 all adopt copper, is cast with slag hanging ribbed bar 3 outside the cooling stave 1, and slag hanging ribbed bar 3 outsides scribble fire-resistant coating 4, by being bolted on the body of heater.
The cooling tube 2 of cooling stave 1 is a U-shaped, for increasing the cooling performance of its cooling stave, adds 4～6 cooling tubes 2 in the every cooling stave 1, and pipe is apart from being 200mm～230mm, and the cooling tube wall thickness is 6mm～8mm.
Cooling tube 2 is provided with ripple expansion compensation transposition 5 with the body of heater junction, solves the problem of cooling tube expanded by heating.
The present invention adds anti-oxidation heat-eliminating medium in the cooling tube 2 when casting-cooling wall.
The anti-oxidation heat-eliminating medium that the present invention adopts in manufacturing processed, before making strand, add anti-oxidation heat-eliminating medium carbonate in the cooling tube, the decomposition temperature of carbonate is≤900 ℃, be lower than the fusing point of copper, can prevent the oxidation and the corrode of copper pipe, its method is for to fill up, to tamp carbonate in U type pipe before casting.
The present invention also can feed the rare gas element nitrogen of cooling, anti-oxidation effect in cooling tube, nitrogen is that rare gas element can play a protective role to copper pipe, and the power that feeds nitrogen pressure is 0.6Mpa～0.8Mpa, and flow is 600m
3/ h～700m
3/ h, the 20min～30min that still ventilates after the casting, quality is even, dense when guaranteeing that cooling stave solidifies.
These two kinds of heat-eliminating mediums can cool off and can prevent oxidation, and film boiling takes place when avoiding water-cooled, and the corrode that copper pipe wall local superheating is caused has an accident.
Claims (4)
1. blast furnace cooling stave, be to make by the interior cooling stave (1) of establishing cooling tube (2), it is characterized in that: cooling stave (1) and cooling tube (2) adopt copper, the outer slag hanging ribbed bar (3) that is provided with of cooling stave (1), and slag hanging ribbed bar (3) outside scribbles fire-resistant coating (4).
2. a kind of blast furnace cooling stave according to claim 1 is characterized in that described cooling stave (1) cooling tube (2) is a U-shaped, adds 4～6 cooling tubes (2) in the every cooling stave (1), and pipe is apart from being 200mm～230mm, and thickness of pipe is 6mm～8mm.
3. a kind of blast furnace cooling stave according to claim 1 is characterized in that: cooling tube (2) is provided with ripple expansion compensation device (5) with the body of heater junction.
4. technology of making blast furnace cooling stave as claimed in claim 1, when it is characterized in that casting-cooling wall (1), cooling tube adds anti-oxidation heat-eliminating medium in (2), adding anti-oxidation heat-eliminating medium in the cooling tube is carbonate, its method is for filling up, tamp carbonate in the U type cooling tube before casting, perhaps fed the rare gas element nitrogen of cooling, anti-oxidation effect in cooling tube, the power that feeds nitrogen pressure is 0.6Mpa～0.8Mpa, and flow is 600m
3/ h～700m
3/ h, the 20min～30min that still ventilates after the casting, quality is even, dense when guaranteeing that cooling stave solidifies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001105310A CN1190503C (en) | 2000-06-14 | 2000-06-14 | Cooling wall of blast furnace and its making technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001105310A CN1190503C (en) | 2000-06-14 | 2000-06-14 | Cooling wall of blast furnace and its making technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1328162A CN1328162A (en) | 2001-12-26 |
| CN1190503C true CN1190503C (en) | 2005-02-23 |
Family
ID=4580519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001105310A Expired - Fee Related CN1190503C (en) | 2000-06-14 | 2000-06-14 | Cooling wall of blast furnace and its making technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1190503C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343395C (en) * | 2002-03-12 | 2007-10-17 | Km欧洲钢铁股份有限公司 | Cooling element |
| CN100457923C (en) * | 2006-03-31 | 2009-02-04 | 南京钢铁联合有限公司 | Low thermal resistance cast-iron cooling wall and manufacturing method thereof |
| EP1847622A1 (en) * | 2006-04-18 | 2007-10-24 | Paul Wurth S.A. | Method of manufacturing a stave cooler for a metallurgical furnace and a resulting stave cooler |
| CN102107271B (en) * | 2010-12-31 | 2013-01-16 | 烟台万隆真空冶金有限公司 | Endogenous-steam cooling casting method for castings |
| CN104531928B (en) * | 2014-12-11 | 2016-05-11 | 马鞍山华盛冶金科技发展有限公司 | A kind of anti-high-temperature molten steel punctures the preparation method with the antiseize lubricant of filler |
| CN104531927B (en) * | 2014-12-11 | 2016-08-24 | 马鞍山华盛冶金科技发展有限公司 | A kind of solid packing of cast steel cooling wall casting |
| CN110814282B (en) * | 2019-10-30 | 2021-09-21 | 本溪钢铁（集团）机械制造有限责任公司 | Method for preparing iron casting with cast-in steel pipe |
| CN111139327A (en) * | 2020-03-04 | 2020-05-12 | 赵纪明 | Blast furnace cast copper cooling wall |
-
2000
- 2000-06-14 CN CNB001105310A patent/CN1190503C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1328162A (en) | 2001-12-26 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Anshan Steel Company Limited Document name: Notification to Pay the Fees |
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| ASS | Succession or assignment of patent right |
Owner name: ANSTEEL ENGINEERING TECHNOLOGY CORPORATION LIMITED Free format text: FORMER OWNER: ANSHAN STEEL COMPANY LIMITED Effective date: 20110927 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 114001 ANSHAN, LIAONING PROVINCE TO: 114021 ANSHAN, LIAONING PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110927 Address after: 114021, Liaoning Anshan District, Tiexi Province Anshan Iron and steel plant main entrance Patentee after: Ansteel Engineering Technology Corporation Limited Address before: 114001 No. 31 Shengli Road, Tiedong District, Liaoning, Anshan Patentee before: Anshan Steel Company Limited |
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| DD01 | Delivery of document by public notice |
Addressee: Anshan Steel Company Limited Document name: Notification of Passing Examination on Formalities |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050223 Termination date: 20110614 |