CN201545856U - Cooler with water-cooled cast steel slag ditch - Google Patents
Cooler with water-cooled cast steel slag ditch Download PDFInfo
- Publication number
- CN201545856U CN201545856U CN2009202807170U CN200920280717U CN201545856U CN 201545856 U CN201545856 U CN 201545856U CN 2009202807170 U CN2009202807170 U CN 2009202807170U CN 200920280717 U CN200920280717 U CN 200920280717U CN 201545856 U CN201545856 U CN 201545856U
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- water
- cooler
- cooled
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- basal body
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Abstract
The utility model relates to a cooler with a water-cooled cast steel slag ditch, which belongs to the technical field of iron-making and comprises a cooler basal body and a cooling water pipe, wherein the cooler basal body and the cooling water pipe are made of cast steel materials, and the cross section of the cooler basal body is in the shape of a semi-circular ring. The cooling water pipe is single and penetrates in the cooler basal body in a reciprocating manner, and the outer surface of the cooling water pipe is in close combination with the cooler basal body by the surface micro-melting way; and a water inlet section and a water outlet section of the cooling water pipe extend out of one end of the semi-circular cooler basal body, and protection sleeves are arranged on the outer surfaces of the water inlet section and the water outlet section. The cooler can further enhance the capacity of high temperature corrosion, effectively avoid producing an air gap between the cooler basal body and the cooling water pipe, prolong the service life of the slag ditch, reduce the consumption of resistant materials and the labor intensity of workers and save the production cost; and simultaneously, the cooler can improve the cooling effect and the mechanical performances of the cooler with the water-cooled slag ditch.
Description
Technical field
The utility model relates to a kind of high temperature cooling device, specifically relates to a kind of band water cooling cast steel slag runner water cooler that is used for the metallurgy high furnace slag runner, belongs to metallurgical ironmaking technology field.
Background technology
The slag runner water cooler of band water-cooled is the device that cooling and protection are provided for blast furnace residue channel; can protect slag runner to avoid the erosion and the mechanical wear of high temperature fluid; prolong the slag runner life-span; guarantee its safety and stability production; so; the life-span of life-span of slag runner water cooler decision slag runner is slag runner longevity, efficient, energy-conservation important assurance.
Current domestic and international metallurgical industry is not generally cooled off blast furnace residue channel, the material of the slag runner water cooler that indivedual units adopt is based on cast iron, but, there are many deficiencies in cast iron slag runner water cooler, with most popular spheroidal graphite cast iron slag runner water cooler is example: (1) spheroidal graphite cast iron slag runner water cooler must add anti-carburization coating outside the cooling channel, make between passage and the matrix and form air gap, and air gap makes slag runner water cooler heat transmission resistance significantly increase, worsened the heat-transfer effect of slag runner water cooler, increase the working face temperature of slag runner water cooler, quickened the breakage of slag runner water cooler; (2) be covered with the globular graphite (particle diameter 0.025～0.150mm) that varies in size on the spheroidal graphite cast iron matrix, countless small holes have been equivalent to form after globular graphite is oxidized, constituted the source region that crack and crackle take place, quickened the expansion of crack and crackle, thereby cause the slag runner water cooler to shorten work-ing life, increase resource consumption, be unfavorable for slag runner water cooler longevity, energy-conservation; (3) when the large-scale spheroidal graphite casting of casting, C, S, P are pushed to liquid zone easily in the column crystallization process, form a segregation thing enrichment region in center equiax crystal district, the unit elongation at cast(ing) surface and center is existed than big-difference, the surface unit elongation is greater than the centre more than one times, promote the generation and the expansion of spheroidal graphite cast iron crack or crackle, be unfavorable for slag runner water cooler longevity; (4) linear expansivity of spheroidal graphite cast iron is more steady in variation below 600 ℃, but more than 600 ℃ then the rising with temperature rapid irreversible " growth " takes place, when temperature during greater than 709 ℃ matrix phase transformation has taken place, the coefficient of expansion and internal stress sharp increase, its breakage speeds up; (5) spheroidal graphite cast iron thermal conductivity and thermal shock resistance are all relatively poor, and its thermal conductivity only is 30wm
-2K
-1, be unfavorable for the efficient cooling of slag runner water cooler.
From domestic and international research situation to the slag runner water cooler, less in the application problem research of metallurgical industry abroad to the cast steel slag runner water cooler of band water-cooled, and it is domestic because metallurgical industry is very big to slag runner water cooler demand, indivedual enterprises put into practice the production of the alloy slag runner water cooler of band water-cooled, but the result is not satisfactory, and for example the 3rd phase of " ironmaking " magazine 1994,50-53 page or leaf, author promptly belong to these row for the refined Zhou Yusheng of Shen ancestor at several water coolers that reach described in the article " current situation of blast furnace cooler ".Its major cause comprises five aspects, and the first, in cast cooling stave process, water-cooled tube is very easily by the high-temperature molten steel burn through, the scrap rate height; The second, in casting process, weld a large amount of chills at the water-cooled tube outside surface, the chill fusing not exclusively destroys the overall mechanical properties of water-cooled tube and cooling stave matrix, and impels air gap to produce severe exacerbation cooling stave heat transfer property; The 3rd, in casting process, cooling channel inner easily generation oxidation, quality product reduces greatly; The 4th, molten steel cleaningization technology lacks systematic study in cast steel cooling wall one-time cast-forming process, the product performance instability; The 5th, the cooling stave of metallurgical industry belongs to thick and large casting, and mass defects such as the pore of thick and large casting, loose, segregation solve at casting industry always as yet fully.In addition, the thermal treatment process shortage systematic study at cast steel cooling wall does not propose heat treatment regime as yet.Therefore, the alloy slag runner water cooler yield rate of band water-cooled is not high, and performance is not good, and the life-span is not long.
The utility model content
In order to overcome problem and the defective that prior art exists, the utility model provides the alloy slag runner water cooler of a kind of long service life, efficient, energy-conservation band water-cooled, to realize that room temperature tensile strength is 650N/mm
2More than, Hs hardness is greater than 35, and ballistic work is greater than 18J/cm
2, reach the purpose in 10 years work-ing life.
For achieving the above object, the utility model is to realize by following technical scheme:
A kind of cast steel slag runner water cooler with water-cooled comprises water cooler matrix, water-cooled tube, it is characterized in that described water cooler matrix is that cast steel material is made, and the water-cooled tube material is a cast steel; The section of water cooler matrix is a semi-round ring shape; Water-cooled tube is single, back and forth is interspersed in the water cooler matrix, and its outside surface and water cooler matrix are combined closely in the little molten mode in surface; The water-in section of water-cooled tube and water outlet section are stretched out from an end of semi-round ring shape water cooler matrix, and water-in section and water outlet section outside have protective casing.
The cross section of described water-cooled tube is oval.
The minor axis of described water-cooled tube oval cross section and the length ratio of major axis are 0.5～0.7.
Because above-mentioned water-cooled tube is single, in castingprocesses, only show little melting, remelting and recrystallize do not take place substantially, keeping the original good rolling performance of water-cooled tube.
The beneficial effects of the utility model are: materials such as the alternative existing cast iron of the utility model employing cast steel are made the cast steel slag runner water cooler matrix of band water-cooled, adopt cast steel material to make water-cooled tube, can strengthen the ability of slag runner water cooler opposing high temperature erosion, effectively avoid producing air gap between water cooler matrix and water-cooled tube, strengthened the cooling performance of slag runner water cooler, prolonged the work-ing life of the slag runner water cooler of band water-cooled, and then prolonged life-span of blast furnace residue channel, reduce refractory consumption rate and labor strength, saved production cost; Simultaneously because water-cooled tube to be cast directly over the water cooler base intravital, so its very tight with the water cooler matrix bond has improved cooling performance and the mechanical property of being with the cast steel slag runner water cooler of water-cooled.
Description of drawings
Fig. 1 is the structural representation of the alloy slag runner water cooler of band water-cooled of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view.
Main mark implication among the figure:
1, water cooler matrix, 2, water-cooled tube, 3, protective casing, 4, the water-in section, 5, the water outlet section.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment, but be not limited thereto.
Embodiment 1:
The utility model embodiment comprises water cooler matrix 1, water-cooled tube 2 shown in Fig. 1-2, it is characterized in that described water cooler matrix 1 makes for cast steel material, and water-cooled tube 2 materials are cast steel; The section of water cooler matrix 1 is a semi-round ring shape; Water-cooled tube 2 is single, back and forth is interspersed in the water cooler matrix 1, and its outside surface and water cooler matrix 1 are combined closely in the little molten mode in surface; The water-in section 4 of water-cooled tube 2 and water outlet section 5 are stretched out from an end of semi-round ring shape water cooler matrix 1, and water-in section 4 and water outlet section 5 outsides have protective casing 3.
The cross section of described water-cooled tube 1 is oval.
The minor axis of described water-cooled tube 2 oval cross sections and the length ratio of major axis are 0.5.
Embodiment 2:
Identical with embodiment 1, just the minor axis of water-cooled tube 2 oval cross sections is 0.6 with the length ratio of major axis.
Embodiment 3:
Identical with embodiment 1, just the minor axis of water-cooled tube 2 oval cross sections is 0.7 with the length ratio of major axis.
Claims (3)
1. the cast steel slag runner water cooler with water-cooled comprises water cooler matrix, water-cooled tube, it is characterized in that described water cooler matrix is that cast steel material is made, and the water-cooled tube material is a cast steel; The section of water cooler matrix is a semi-round ring shape; Water-cooled tube is single, back and forth is interspersed in the water cooler matrix, and its outside surface and water cooler matrix are combined closely in the little molten mode in surface; The water-in section of water-cooled tube and water outlet section are stretched out from an end of semi-round ring shape water cooler matrix, and water-in section and water outlet section outside have protective casing.
2. the slag runner water cooler of band water-cooled according to claim 1, the cross section that it is characterized in that described water-cooled tube is for oval.
3. the cast steel slag runner water cooler of band water-cooled according to claim 1 and 2 is characterized in that the minor axis of described water-cooled tube oval cross section and the length ratio of major axis are 0.5～0.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202807170U CN201545856U (en) | 2009-12-09 | 2009-12-09 | Cooler with water-cooled cast steel slag ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202807170U CN201545856U (en) | 2009-12-09 | 2009-12-09 | Cooler with water-cooled cast steel slag ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201545856U true CN201545856U (en) | 2010-08-11 |
Family
ID=42601025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202807170U Expired - Fee Related CN201545856U (en) | 2009-12-09 | 2009-12-09 | Cooler with water-cooled cast steel slag ditch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201545856U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103468845A (en) * | 2013-09-09 | 2013-12-25 | 南京联合荣大工程材料有限责任公司 | Blast furnace slag discharge trench with built-in water cooling system |
| CN103468846A (en) * | 2013-09-09 | 2013-12-25 | 南京联合荣大工程材料有限责任公司 | Blast furnace slagging channel with embedded water cooling system |
| CN103615901A (en) * | 2013-12-05 | 2014-03-05 | 江苏联兴成套设备制造有限公司 | Production method of slag runner cooler |
-
2009
- 2009-12-09 CN CN2009202807170U patent/CN201545856U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103468845A (en) * | 2013-09-09 | 2013-12-25 | 南京联合荣大工程材料有限责任公司 | Blast furnace slag discharge trench with built-in water cooling system |
| CN103468846A (en) * | 2013-09-09 | 2013-12-25 | 南京联合荣大工程材料有限责任公司 | Blast furnace slagging channel with embedded water cooling system |
| CN103468845B (en) * | 2013-09-09 | 2015-05-20 | 南京联合荣大工程材料有限责任公司 | Blast furnace slag discharge trench with built-in water cooling system |
| CN103468846B (en) * | 2013-09-09 | 2016-06-01 | 南京联合荣大工程材料有限责任公司 | A kind of blast furnace with interior embedded water cooling system goes out slag runner |
| CN103615901A (en) * | 2013-12-05 | 2014-03-05 | 江苏联兴成套设备制造有限公司 | Production method of slag runner cooler |
| CN103615901B (en) * | 2013-12-05 | 2015-10-21 | 江苏联兴成套设备制造有限公司 | The production method of slag runner cooler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINAN IRON AND STEEL CO LTD Free format text: FORMER OWNER: LAIWU IRON CO., LTD. Effective date: 20120328 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 271104 LAIWU, SHANDONG PROVINCE TO: 250101 JINAN, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120328 Address after: 250101 Ji'nan Industrial Road, Shandong, No. 21 Co-patentee after: University of Science and Technology Beijing Patentee after: Jinan Iron and Steel Co., Ltd. Address before: 271104, Xinxing Road, Gangcheng District, Shandong, Laiwu, 21 Co-patentee before: University of Science and Technology Beijing Patentee before: Laiwu Iron Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG IRON + STEEL CO., LTD. Free format text: FORMER NAME: JI'NAN IRON + STEEL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 250101 Ji'nan Industrial Road, Shandong, No. 21 Co-patentee after: University of Science and Technology Beijing Patentee after: Shandong Iron & Steel Group Co., Ltd. Address before: 250101 Ji'nan Industrial Road, Shandong, No. 21 Co-patentee before: University of Science and Technology Beijing Patentee before: Jinan Iron and Steel Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |