CN201421257Y - Electric furnace water-cooling cast steel furnace cover - Google Patents
Electric furnace water-cooling cast steel furnace cover Download PDFInfo
- Publication number
- CN201421257Y CN201421257Y CN2009200388647U CN200920038864U CN201421257Y CN 201421257 Y CN201421257 Y CN 201421257Y CN 2009200388647 U CN2009200388647 U CN 2009200388647U CN 200920038864 U CN200920038864 U CN 200920038864U CN 201421257 Y CN201421257 Y CN 201421257Y
- Authority
- CN
- China
- Prior art keywords
- cooling
- water pipe
- cooling water
- electric furnace
- cast steel
- 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
Links
Images
Abstract
The utility model relates to an electric furnace water-cooling cast steel furnace cover, which comprises a base body and a cooling water pipe, and is characterized in that the base body and the cooling water pipe are both made of cast steel materials, the middle of the cooling water pipe is in a circular ring shape, the two ends thereof are bent upward, the base body is of a circular ring shape with a step, the larger diameter part is upward, the smaller diameter part is downward, the cooling water pipe is positioned in the base body, and the two ends of the cooling water pipe extend from theupper side of the larger diameter part. The utility model adopts cast steel to substitute for the existing cast iron to produce the electric furnace water-cooling furnace cover, so the air gap betweenthe base body of the electric furnace water-cooling furnace cover and the cooling water pipe can be avoided, the service life of the furnace cover is prolonged, thereby, the service life of the metallurgy kiln is prolonged, the production cost is saved, the cooling water pipe and the base body are tightly combined, the cooling effect of the steel brick is improved, and the mechanical capacity ofthe electric furnace water-cooling furnace cover is improved.
Description
Technical field
The utility model relates to a kind of metallurgy high temperature stove, specifically relates to a kind of electric furnace water cooling cast steel furnace cover that is used for the metallurgy high temperature stove, belongs to the steel-making metallurgical technology field.
Background technology
The electric furnace water cooled cover is the device that cooling is provided for the metallurgy high temperature stove, can protect the metallurgy high temperature stove to avoid the erosion and the mechanical wear of high temperature fluid in the body of heater, prolongs the life-span of metallurgy high temperature stove, guarantees its safety and stability production.In a single day cooling device goes wrong, and the metallurgy high temperature kiln is stop production to overhaul comprehensively, will bring heavy economic losses.So the life-span of life-span of electric furnace water cooled cover decision metallurgy high temperature stove is metallurgy high temperature stove long-service life high-efficiency, energy-conservation important assurance.
The electric furnace water cooled cover material that current domestic and international metallurgical industry is generally adopted is based on cast iron, and still, there are many deficiencies in cast iron electric furnace water cooled cover.With most popular spheroidal graphite cast-iron electric furnace water cooled cover is example: (1) spheroidal graphite cast-iron electric furnace water cooled cover must add anti-carburization coating outside the cooling duct, make between passage and the matrix and form air gap, and air gap makes electric furnace water cooled cover heat transmission resistance increase more than 1,000 times, worsen the heat-transfer effect of electric furnace water cooled cover, increase electric furnace water cooled cover working face temperature, quicken the breakage of electric furnace water cooled cover.(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 cradle that crack and crackle take place, quickened the expansion of crack and crackle, thereby cause the electric furnace water cooled cover to shorten service life, increase resource consumption, be unfavorable for electric furnace water cooled cover long-life energy-saving.(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 percentage elongation at cast(ing) surface and center is existed than big-difference, the surface percentage 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 electric furnace water cooled cover longevity.(4) linear expansion coefficient 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 factor only is 30wm
-2K
-1, be unfavorable for the efficient cooling of electric furnace water cooled cover.
The utility model content
In order to overcome the problem that prior art exists, the purpose of this utility model is to provide a kind of electric furnace water cooling cast steel furnace cover that utilizes new cast steel substrate material to replace traditional cast iron materials, and guarantee that the cooling water pipe surface is little molten in casting process, make cooling water pipe after cast, combine closely with matrix, eliminated air gap, improve the performance of electric furnace water cooling cast steel furnace cover, prolonged the service life of metallurgy high temperature stove.
For achieving the above object, the utility model solves the technical scheme that its technical problem adopts and is:
A kind of electric furnace water cooling cast steel furnace cover comprises matrix and cooling water pipe, it is characterized in that described matrix and cooling water pipe all made by cast steel material, and it is circular that the middle part of cooling water pipe becomes, and two ends are upwards crooked; Matrix is with the level circular, and the part that diameter is big makes progress, and the part that diameter is little is downward, and cooling water pipe is arranged in matrix, and it is combined closely with little molten mode in surface and matrix, and stretch out from the upside of the big part of diameter two ends of cooling water pipe.
The cross section of above-mentioned cooling water pipe is oval, and the length ratio of oval-shaped major axis and minor axis is 0.5～0.7.
The beneficial effects of the utility model are: the utility model adopts cast steel material to replace existing cast iron materials to make the electric furnace water cooled cover, can effectively avoid producing air gap between electric furnace water cooled cover matrix and cooling water pipe, prolong the life-span of bell life-span and then prolongation metallurgical furnace, save production cost; Make cooling water pipe and matrix combine closely, improve steel brick cooling effect, improve the mechanical performance of electric furnace water cooled cover.
Description of drawings
Fig. 1 is the central cross-sectional view of electric furnace water cooling cast steel furnace cover of the present utility model;
Fig. 2 is the vertical view of electric furnace water cooling cast steel furnace cover of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the central cross-sectional view of electric furnace water cooling cast steel furnace cover of the present utility model; Fig. 2 is the vertical view of electric furnace water cooling cast steel furnace cover of the present utility model.
As shown in Figure 1, 2, circuit water cooling cast steel bell of the present utility model comprises matrix 1 and cooling water pipe 2, and matrix 1 and cooling water pipe 2 all adopt cast steel material to make, and the pars intermedia of cooling water pipe 2 is divided into circular, makes progress after two end bendings.Matrix 1 is with the level circular, the big part of diameter is at upside, the little part of diameter is at downside, cooling water pipe 2 is arranged in matrix 1, is surrounded by matrix 1, and it is combined closely with little molten mode in surface and matrix 1, stretch out from the upside of the big part of the diameter of matrix 1 two ends of cooling water pipe 2, by cooling medium, the cross section of cooling water pipe 2 is oval with convenient, and the length ratio of oval-shaped major axis and minor axis is 0.5～0.7.
Embodiment 1: the cross section of cooling water pipe 2 is oval, and the length ratio of oval-shaped major axis and minor axis is 0.5.
Embodiment 2: the cross section of cooling water pipe 2 is oval, and the length ratio of oval-shaped major axis and minor axis is 0.6.
Embodiment 3: the cross section of cooling water pipe 2 is oval, and the length ratio of oval-shaped major axis and minor axis is 0.7.
The utility model all is chosen to be cast steel with the material of cooling water pipe 2 and the material of matrix 1, has effectively avoided a series of problems of using anti-carburization coating and bringing; Cooling water pipe 2 is cast directly over matrix 1 inside; in casting process; utilize composite solid cooling medium to pass through cooling water pipe 2 with fluid; protection cooling water pipe 2 melts and does not change; impel cooling water pipe 2 surface in casting process little molten; fit tightly with matrix 1; do not produce air gap; reduce cooling drag, prolonged the service life of electric furnace water cooling cast steel furnace cover, and then prolonged the service life of metallurgy high temperature stove; and improved the cooling effect of electric furnace water cooling cast steel furnace cover; by the process of setting of control matrix 1, form the condition of consecutive solidification simultaneously, improve the performance of electric furnace water cooling cast steel furnace cover.
The cardinal principle that electric furnace water cooling cast steel furnace cover of the present utility model is applied to the metallurgy high temperature stove is: the exit region that electric furnace water cooling cast steel furnace cover is placed the metallurgy high temperature stove, cooling medium (such as: water) by certain flow velocity from a port of the cooling water pipe 2 of electric furnace water cooling cast steel furnace cover by electric furnace water cooling cast steel furnace cover inside, by this way, heat is passed to the matrix 1 of electric furnace water cooling cast steel furnace cover from metallurgy high temperature stove inside, cooling medium is taken heat out of the metallurgy high temperature stove from matrix 1 again, make the furnace shell of metallurgy high temperature stove avoid high temperature erosion, thereby prolong the service life of metallurgy high temperature stove.Regulate the cooling performance of electric furnace water cooling cast steel furnace cover by regulating cooling water flow and flow velocity.
The foregoing description does not limit the utility model in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drop in the protection domain of the present utility model.
Claims (3)
1, electric furnace water cooling cast steel furnace cover comprises matrix and cooling water pipe, it is characterized in that described matrix and cooling water pipe all made by cast steel material, and it is circular that the middle part of cooling water pipe becomes, and two ends are upwards crooked; Matrix is with the level circular, and the part that diameter is big makes progress, and the part that diameter is little is downward, and cooling water pipe is arranged in matrix, and it is combined closely with little molten mode in surface and matrix, and stretch out from the upside of the big part of diameter two ends of cooling water pipe.
2, electric furnace water cooling cast steel furnace cover according to claim 1, the cross section that it is characterized in that described cooling water pipe is for oval.
3, electric furnace water cooling cast steel furnace cover according to claim 1 is characterized in that the length ratio of described oval-shaped major axis and minor axis is 0.5～0.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200388647U CN201421257Y (en) | 2009-05-08 | 2009-05-08 | Electric furnace water-cooling cast steel furnace cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200388647U CN201421257Y (en) | 2009-05-08 | 2009-05-08 | Electric furnace water-cooling cast steel furnace cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201421257Y true CN201421257Y (en) | 2010-03-10 |
Family
ID=41807916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200388647U Expired - Fee Related CN201421257Y (en) | 2009-05-08 | 2009-05-08 | Electric furnace water-cooling cast steel furnace cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201421257Y (en) |
-
2009
- 2009-05-08 CN CN2009200388647U patent/CN201421257Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101634520B (en) | Casting method of cast steel cooling plate | |
| CN201212040Y (en) | Combined cooling stave | |
| CN102393144B (en) | Manufacturing method of cast copper water jacket embedded with double-layer pure copper pipes | |
| CN207749032U (en) | A kind of quartz sand smelting furnace being quickly cooled down sand body | |
| CN101698908A (en) | Method for producing metal germanium ingots by continuous reduction | |
| CN201852465U (en) | Structure of iron notch of water-cooled ore heating furnace | |
| CN201421266Y (en) | Cast steel cooling plate | |
| CN201545856U (en) | Cooler with water-cooled cast steel slag ditch | |
| CN101634521B (en) | Casting method of cast steel rotary furnace flue | |
| CN201421257Y (en) | Electric furnace water-cooling cast steel furnace cover | |
| CN201421263Y (en) | Cast steel cooling wall | |
| CN202101552U (en) | Casting copper cooling plate | |
| CN103611921B (en) | The production method of skimming tool | |
| CN201421264Y (en) | Cast steel converter flue | |
| CN101634524B (en) | Casting method of electric furnace water cooling cast steel furnace cover | |
| CN101634523B (en) | Casting method of cast steel cooling wall | |
| CN202099301U (en) | Casting copper cooling wall | |
| CN202204308U (en) | Intermediate frequency furnace lining for casting silver | |
| CN201434593Y (en) | Alloy furnace throat steel brick with water cooling | |
| CN201421265Y (en) | Water cooling cast steel furnace throat steel brick | |
| CN101634522B (en) | Casting method of steel brick of cast steel furnace throat with water cooling | |
| CN103639364A (en) | Cast iron anode mold capable of improving copper pouring amount and production method thereof | |
| CN202254860U (en) | High efficiency heat exchange casting copper water jacket | |
| CN202715797U (en) | Heat storage type water-cooling ingot mould | |
| CN203639482U (en) | Copper cooling wall of blast furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20140508 |