CN2255433Y - Multi-pyramid slag stopper - Google Patents
Multi-pyramid slag stopper Download PDFInfo
- Publication number
- CN2255433Y CN2255433Y CN 96232687 CN96232687U CN2255433Y CN 2255433 Y CN2255433 Y CN 2255433Y CN 96232687 CN96232687 CN 96232687 CN 96232687 U CN96232687 U CN 96232687U CN 2255433 Y CN2255433 Y CN 2255433Y
- Authority
- CN
- China
- Prior art keywords
- slag
- arris
- pyramidal
- hollow body
- filler
- 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
- 239000002893 slag Substances 0.000 title claims abstract description 38
- 239000000945 filler Substances 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 5
- 208000004141 microcephaly Diseases 0.000 claims description 5
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 239000003110 molding sand Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 17
- 239000010959 steel Substances 0.000 abstract description 17
- 238000010079 rubber tapping Methods 0.000 abstract description 12
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000003723 Smelting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model discloses a many pyramids pushing off slag ware, including foundry goods body, couple, filler, apron and the hole of loosing. The body is a regular polygonal pyramid with 4-7 ribs, the small end of the body is a round-head solid body, and the large end of the body is a hollow body. The hollow body is filled with filler. The utility model has the advantages of effectively preventing the eddy from rolling up slag, blocking the slag when tapping is finished, and leading the residual molten steel to flow out as soon as possible.
Description
The utility model belongs to converter steelmaking slagging-off technical field, particularly relates to a kind of polygonal pyramid slag-blocking apparatus.
In the prior art, converter tapping generally adopts slag-blocking ball retaining finishing slag technology.Although slag-blocking ball can block finishing slag preferably, exist to stop tapping later stage molten steel eddy current volume slag to enter ladle and slag-blocking ball to block the problem that molten steel can not go out behind the mouth of a river.
" bao steel technology " (1991 the 1st phase P15) disclose a kind of improvement project of slag-blocking ball, solved slag-blocking ball preferably and blocked the problem that molten steel can not go out behind the mouth of a river.But still have several like this problems: 1. the operation that drops into slag-blocking ball must guarantee that the center of gravity of slag-blocking ball drops on the vertical line that ball hangs, otherwise molten steel just can not flow out and stops in converter along vertical slot.2. flow out molten steel even block the mouth of a river on the tram along vertical slot, its flow velocity is slow, and the converter smelting cycle is exerted an influence.3. slag-blocking ball is made complicated.4. the problem that unresolved prevention enters ladle at tapping later stage molten steel eddy current volume slag.
" steel-making " (1991 the 5th phase P47-49) discloses two kinds of slag-blocking apparatuss.The common ground of these two kinds of technical schemes is solved the problem that tapping later stage molten steel eddy current volume slag enters ladle preferably, but the technical scheme of handstand condition to be gone up in its making of all unexposed assurance; Simultaneously, the former also exists various material to constitute the processing and fabricating complexity; The residue molten steel waits problem slowly by the vertical slot flow velocity.The latter exists also that to be used for converter tapping pushing off the slag slit too big, easily takes finishing slag out of and enters ladle; Body is easily broken, tip rapid wear and influence problems such as its quality and pushing off the slag effect.
The purpose of this utility model is, at the problem that exists in the prior art, proposes a kind of Multi-arris pyramidal slag bridge, can not only stop the vortex band slag in converter tapping later stage, and the following slag that can stop tapping to be finished, and makes that molten steel goes out to the greatest extent as early as possible in the stove; Simultaneously, also can be not broken and be bonded on the tap hole, processing and fabricating is simple.
The purpose of this utility model is to realize by technical scheme as described below:
Multi-arris pyramidal slag bridge comprises foundry goods body, hook, filler, cover plate and diffuses the hole.Body is that the rib number is 4～7 a positive polygonal pyramid body, and its tapering is 30 °～70 °.The body microcephaly is the knob solid, and major part is a hollow body.The hollow body height is 1/2～1/5 of a body height.Be filled with the filler that proportion is lighter than cast iron in the hollow body.The hollow body wall thickness is 20～50mm.There is 1～10 to diffuse the hole on the cover plate.Cover plate is fixed on the body bottom.Hook is positioned on the body axis, is connected to body.
Further be that the rib number of body is preferably 6.
Further be that the tapering of body is preferably 36 °.
Further be, the hollow body height preferably body height 1/3.
Further be that the wall thickness of empty main body is preferably 25mm.
Further be that the filler of loading in the hollow body of above-mentioned Multi-arris pyramidal slag bridge is sand preferably.
Compared with the prior art, the utlity model has following obvious advantage:
1. the molten steel eddy current volume slag that can stop the converter tapping later stage preferably;
2. in molten steel face decline process, slag stopper moves closer to the mouth of a river, makes steel flow out existing throttling effect;
3. after slag stopper entered the tapping mouth of a river fully, a plurality of suitable slit that slag stopper and tap hole form not only can fully stop slag down, and molten steel flows out as early as possible in the stove but also can make, and has improved recovery rate, has reduced the influence to the converter smelting cycle;
4. slag stopper has solved the explosion problem preferably; Can be not broken, can not be bonded on the tap hole yet;
5. processing and fabricating is simple;
6. the breakage rate in transportation and the use is extremely low.
Accompanying drawing 1 is the utility model master sectional view;
Accompanying drawing 2 is the utility model left view.
For example the utility model is further described below in conjunction with accompanying drawing.
Embodiment 1
Multi-arris pyramidal slag bridge comprises foundry goods body 1, hook 2, filler 3, cover plate 4 and diffuses hole 5.Body 1 is that the rib number is 4～7 a positive polygonal pyramid body, and its tapering 2 α are 30 °～70 °.The microcephaly of body 1 is the knob solid, and the major part of body 1 is a hollow body.The height h of hollow body is 1/2～1/5 of a body height.Be filled with the filler 3 that proportion is lighter than cast iron in the hollow body.The wall thickness b of hollow body is 20～50mm.There is 1～10 on the cover plate 4 and diffuses hole 5.Cover plate 4 is fixed on the bottom of body 1.Hook 2 is positioned on the axis of body 1, is connected to body 1.
Embodiment 2
Multi-arris pyramidal slag bridge, comprise foundry goods body 1, hook 2, filler 3, cover plate 4 and diffuse hole 5.Body 1 is that the rib number is 6 a positive polygonal pyramid body, and its tapering 2 α are 36 °.The microcephaly of body 1 is the knob solid, and the major part of body 1 is a hollow body.The height h of hollow body is 1/3 of a body height.Be filled with molding sand in the hollow body.The wall thickness b of hollow body is 25mm.There are 6 on the cover plate 4 and diffuse hole 5.Cover plate 4 is fixed on the bottom of body 1.Hook 2 is positioned on the axis of body 1, is connected to body 1.
During use, the said slag stopper of the utility model is dropped on the converter taphole, the design of condition and proportion makes it can guarantee that the microcephaly is downward, and is suspended between the interface of molten steel and finishing slag because slag stopper can reasonably stand upside down.In tapping process, can not only stop eddy current volume slag effectively, and can block the following slag of tapping when finishing, and the residue molten steel is gone out to the greatest extent as early as possible.Wherein diffuse hole 5, not only can diffuse the moisture of filler in the course of processing, and can diffuse the moisture of filler in the use, prevented explosion effectively.
Claims (6)
1. Multi-arris pyramidal slag bridge comprises foundry goods body and hook; The utility model is characterized in that, also comprises filler, cover plate and diffuses the hole; Body is that the rib number is 4～7 a positive polygonal pyramid body, and its tapering is 30 °～70 °; The body microcephaly is the knob solid, and the body major part is a hollow body.The hollow body height is 1/2～1/5 of a body height, is filled with the filler that proportion is lighter than cast iron in the hollow body; The wall thickness of hollow body is 20～50mm; There is 1～10 to diffuse the hole on the cover plate; Cover plate is fixed on the bottom of body; Hook is positioned on the axis of body, is connected to body.
2. as the said Multi-arris pyramidal slag bridge of claim 1, it is characterized in that the rib number of body is preferably 6.
3. as the said Multi-arris pyramidal slag bridge of claim 1, it is characterized in that the tapering of body is preferably 36 °.
4. as the said Multi-arris pyramidal slag bridge of claim 1, it is characterized in that, the hollow body height preferably body height 1/3.
5. as the said Multi-arris pyramidal slag bridge of claim 1, it is characterized in that the wall thickness of hollow body is preferably 25mm.
6. as claim 1,2,3,4 and 5 said Multi-arris pyramidal slag bridges, it is characterized in that the filler of loading in the hollow body of above-mentioned Multi-arris pyramidal slag bridge is molding sand preferably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232687 CN2255433Y (en) | 1996-02-08 | 1996-02-08 | Multi-pyramid slag stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232687 CN2255433Y (en) | 1996-02-08 | 1996-02-08 | Multi-pyramid slag stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2255433Y true CN2255433Y (en) | 1997-06-04 |
Family
ID=33909575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96232687 Expired - Fee Related CN2255433Y (en) | 1996-02-08 | 1996-02-08 | Multi-pyramid slag stopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2255433Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443596C (en) * | 2006-12-31 | 2008-12-17 | 武汉钢铁(集团)公司 | Low density converter steel tapping slag bridge |
| CN115029501A (en) * | 2022-06-27 | 2022-09-09 | 唐山瑞丰钢铁（集团）有限公司 | Repairing method for converter steel tapping hole |
-
1996
- 1996-02-08 CN CN 96232687 patent/CN2255433Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443596C (en) * | 2006-12-31 | 2008-12-17 | 武汉钢铁(集团)公司 | Low density converter steel tapping slag bridge |
| CN115029501A (en) * | 2022-06-27 | 2022-09-09 | 唐山瑞丰钢铁（集团）有限公司 | Repairing method for converter steel tapping hole |
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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 |