CN2142114Y - Blast furnace tuyere water jacket with cast-in wear-resisting casing - Google Patents
Blast furnace tuyere water jacket with cast-in wear-resisting casing Download PDFInfo
- Publication number
- CN2142114Y CN2142114Y CN 92235236 CN92235236U CN2142114Y CN 2142114 Y CN2142114 Y CN 2142114Y CN 92235236 CN92235236 CN 92235236 CN 92235236 U CN92235236 U CN 92235236U CN 2142114 Y CN2142114 Y CN 2142114Y
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- wear
- wear resistance
- sleeve
- blast furnace
- resistance sleeve
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Abstract
The utility model discloses a blast furnace tuyere water sleeve with an embedding wear resistance sleeve, belonging to one device of the hot air inlet of an iron-smelting blast furnace. The combined type embedding wear resistance sleeve which is formed by the blast furnace tuyere water sleeve and a wear resistance sleeve is characterized in that a plurality of strips of dovetail grooves are arranged on the outer wall of the wear resistance sleeve. And a plurality of blocks of wear resistance sleeve form integration, and are embedded on the inner hole wall of the blast furnace tuyere water sleeve after poured by coppery water. Thus, in the processes of transportation, installation, and use, the embedding wear resistance sleeve can not be dropped and fissured which are caused by vibration, high temperature, and material friction. The service life of abrasion is increased. And the wear resistance sleeve which is made of corundum materials has the advantages of low heat conductivity, and heat insulating action. Thus, the wear resistance sleeve has the functions of increasing air temperature and reducing coke rate and delay rate.
Description
The utility model belongs to the equipment configuration of iron-smelting blast furnace hot air inlet.
Iron-smelting blast furnace is perpendicular shape stove, and in the smelting process, the high-temperature hot-air that hotblast stove forms again along the air port that the State of Blast Furnace cylinder body distributes, is sent into blast furnace through pipeline.The tuyere cooler front end stretches in the blast furnace, is in the encirclement and the impact of high temperature (more than 1500 ℃) heat-flash stream, and slag, invading of iron be stained with, so its working conditions is very abominable, in case damage, often wants the blowing out replacing, influences blast furnace production.The reason that tuyere cooler damages has two kinds: the one, and under hot conditions, the scaling loss because cooling (water cooling) effect is bad; The 2nd, because the wearing and tearing of coal injection, and the erosive wear of furnace charge, slag in the blast furnace.The application of throughflow tuyere water jacket has solved the scaling loss of tuyere cooler preferably, and the long life reached more than 1 year, but burning problems has obtained solution, and wear problem has just highlighted.The actual average of throughflow tuyere water jacket has only about half of maximum life span work-ing life, and its damage type nearly all is wearing and tearing.
For improving the wear resistance of tuyere cooler, external advanced plasma spraying method, the spray coating metal ceramic on the inner hole wall of tuyere cooler of adopting.This method is effective, but needs complex apparatus, and technical difficulty is also big, and production cost height, production unit are difficult to promote the use of.Now domestic have employing at the tuyere cooler endoporus, and the method for the wear-resistant sleeve of insert integral body is to improve the wear resistance of tuyere cooler.The wear-resistant sleeve of this insert adopts binding agent that wear-resistant sleeve and tuyere cooler are bonded together.Since still do not have at present a kind of well behaved, the binding agent that the copper of high-abrasive material and tuyere cooler body can be bonded together securely, so wear-resistant sleeve is easy to come off and damage in processes such as transportation, installation, the performance of tuyere cooler just is affected.Simultaneously, because wear-resistant sleeve and tuyere cooler bonding is not firm, use in blast furnace production process, owing to washing away of variation of temperature and coal dust, chap easily and peel off, shorten work-ing life greatly.
The purpose of this utility model, the wear-resistant sleeve that makes tuyere cooler exactly are in transportation, installation and use, and molten with tuyere cooler securely is whole, be unlikely to come off, chap and damage, thus prolongation tuyere cooler attrition resistant work-ing life.
The utility model is achieved in that the size according to the tuyere cooler endoporus, and wear-resistant sleeve is made overall cone shape, adopts the method for castingin, and wear-resistant sleeve is cast on the inner hole wall of tuyere cooler.In order to satisfy the requirement of casting, wear-resistant sleeve is divided into several parts, from top to bottom by several layers, form by the several piece wear-resistant block for every layer, for avoiding coming off of wear-resistant block, on the outer wall of wear-resistant sleeve, make some dovetail-indents, during manufacturing wear-resistant block has been combined into the wear-resistant sleeve of an integral body, put into the sand mold of casting, after copper water is advanced in cast, wear-resistant sleeve with regard to castingin in the tuyere cooler inner hole wall.Wear-resistant sleeve adopts corundum material to consider that from wear-resisting mechanical property corundum is better than silicon carbide.The wear-resistant sleeve castingin accounts for 4/5ths positions from top to bottom on the tuyere cooler inner hole wall.
The utility model is the blast-furnace tuyere water jacket that the castingin wear-resistant sleeve is arranged that a kind of ironmaking tuyere of blast furnace uses.It is made up of tuyere cooler and wear-resistant sleeve.With inlaying by dovetail-indent between copper water cast tuyere cooler and the wear-resistant sleeve.Dovetail-indent has one or more.
Advantage of the present utility model is in transportation, installation and use, can tuyere cooler be exceeded more than the twice work-ing life work-ing life than conventional tuyere cooler because of vibration, high temperature and material friction are come off, chap and wear and tear.Wear-resistant sleeve is made by the corundum material, so thermal conductivity is low, the hot blast that enters blast furnace is had insulation effect, thereby has the function that improves wind-warm syndrome, reduces coke ratio.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the built-up type castingin wear-resistant sleeve sectional view of blast-furnace tuyere water jacket.
It is by having dovetail-indent (3) and wear-resistant sleeve (2) to form on tuyere cooler (1), its inwall.
Wear-resistant sleeve adopts, and corundum material high temperature resistant, wear-resisting wiping is made.Size according to the tuyere cooler endoporus, make overall taper shape, adopt the method for castingin, wear-resistant sleeve is cast on the inwall of tuyere cooler, whole wear-resistant sleeve is embedded in the encirclement of tuyere cooler inner hole wall,, wear-resistant sleeve is divided into several parts in order to satisfy the requirement of casting, form (according to the tuyere cooler size, the number of plies can increase or reduce) by three layers every layer by the several piece wear-resistant block.For avoiding coming off of wear-resistant block, on the outer wall of wear-resistant sleeve, make some dovetail-indents, the wear-resistant sleeve that during manufacturing wear-resistant block formed a whole is put into the sand mold of casting, pour into a mould copper water then after, wear-resistant sleeve just has been cast in the tuyere cooler inner hole wall.Tuyere cooler body and wear-resistant sleeve are just in conjunction with as a whole like this.The tuyere cooler body is a copper material, and the type of cooling is to be heat-eliminating medium with the water coolant.
Claims (2)
1, a kind of blast-furnace tuyere water jacket that the castingin wear-resistant sleeve is arranged, form by tuyere cooler (1) and wear-resistant sleeve (2), it is characterized in that being installed with wear-resistant sleeve (2) on tuyere cooler (1) inner side-wall, the outer side wall of wear-resistant sleeve (2) and tuyere cooler (1) inner side-wall are inlayed with dovetail-indent (3).
2, blast-furnace tuyere water jacket according to claim 1 is characterized in that dovetail-indent (3) has one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92235236 CN2142114Y (en) | 1992-11-12 | 1992-11-12 | Blast furnace tuyere water jacket with cast-in wear-resisting casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92235236 CN2142114Y (en) | 1992-11-12 | 1992-11-12 | Blast furnace tuyere water jacket with cast-in wear-resisting casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2142114Y true CN2142114Y (en) | 1993-09-15 |
Family
ID=33777060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92235236 Expired - Fee Related CN2142114Y (en) | 1992-11-12 | 1992-11-12 | Blast furnace tuyere water jacket with cast-in wear-resisting casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2142114Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964128A (en) * | 2015-07-03 | 2015-10-07 | 南京禄口汽车配件厂 | Copper inlay thread supporting base |
-
1992
- 1992-11-12 CN CN 92235236 patent/CN2142114Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964128A (en) * | 2015-07-03 | 2015-10-07 | 南京禄口汽车配件厂 | Copper inlay thread supporting base |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |