CN103184310B - A kind of steel-making converter tapping pushing off the slag floating plug - Google Patents
A kind of steel-making converter tapping pushing off the slag floating plug Download PDFInfo
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- CN103184310B CN103184310B CN201310125824.7A CN201310125824A CN103184310B CN 103184310 B CN103184310 B CN 103184310B CN 201310125824 A CN201310125824 A CN 201310125824A CN 103184310 B CN103184310 B CN 103184310B
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Abstract
The invention discloses a kind of steel-making converter tapping pushing off the slag floating plug, comprise floating plug body and guide rod, described guide rod one end is connected with floating plug body, and the described guide rod the other end is provided with provides the power-assisted entering converter taphole boosting power to stick up wing block to floating plug body.Floating plug drops into after in converter, and steel stream washes away power-assisted and sticks up wing block, and produce larger boosting power, move floating plug to tap hole position fast, steel stream reduces rapidly, and when steel stream recovers normal, floating plug is stable occupies tap hole position, and floating plug can not produce drift; What stick up wing block by power-assisted sticks up wing end face, effectively controls guide rod placed in the middle in tap hole, is not just avoiding plug position, is producing and leak slag phenomenon; Steel stream impacts power-assisted and sticks up wing block, also effectively controls the phenomenon that floating plug floats automatically, avoids causing pushing off the slag to lose efficacy.
Description
Technical field
The present invention relates to steel-making technical field of auxiliary equipment, especially relate to a kind of steel-making converter tapping pushing off the slag floating plug.
Background technology
The converter tapping middle and later periods, start pushing off the slag dolly, floating plug is dropped in converter, utilize molten steel than great, converter slag proportion is little, the marginal principle of floating plug proportion, tapping latter stage, molten steel all goes out ladle under stove, and is blocked by converter slag, staying in converter, preventing slag with molten steel to entering in ladle.
High-temperature molten steel is to the continuous erosion of converter taphole, and tap hole becomes increasing, and the tapping time is shorter and shorter, and in converter, fluidity molten steel is large.Mostly traditional floating plug is to be made up of the guide rod on cock body and cock body, uses traditional floating plug pushing off the slag poor effect, very easily causes floating plug to drift about, guide rod is not placed in the middle, can not fill in tap hole effectively accurately, cause that pushing off the slag is bad, pushing off the slag weak effect, slag is entered in ladle.The lighter causes that alloy loss is large, the rate of recovery is low, and severe one causes rephosphorization of molten steel to exceed standard, and produces that molten steel melts down, casting machine disconnectedly waters, even produce production, the quality accidents such as waste product.
Summary of the invention
Not enough for prior art, technical problem to be solved by this invention is to provide a kind of steel-making converter tapping pushing off the slag floating plug, not easily drifts about, and quick and precisely can fill in the object in converter taphole to reach floating plug.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of steel-making converter tapping pushing off the slag floating plug, comprise floating plug body and guide rod, described guide rod one end is connected with floating plug body, and the described guide rod the other end is provided with provides the power-assisted entering converter taphole boosting power to stick up wing block to floating plug body.
It is cone structure that described power-assisted sticks up wing block, the end face of cone structure towards floating plug body, the tip floating plug body dorsad of cone structure.
The tip that described power-assisted sticks up wing block is extended with stabilizer bar, stabilizer bar and guide rod coaxial line.
Described floating plug body is half American football shape structure, and guide rod is connected with the tip of half American football shape structure.
The present invention compared with prior art, have the following advantages: floating plug drops into after in converter, steel stream washes away power-assisted and sticks up wing block, produce larger boosting power, move floating plug to tap hole position fast, steel stream reduces rapidly, when steel stream recovers normal, floating plug is stable occupies tap hole position, and floating plug can not produce drift; What stick up wing block by power-assisted sticks up wing end face, effectively controls guide rod placed in the middle in tap hole, is not just avoiding plug position, is producing and leak slag phenomenon; Steel stream impacts power-assisted and sticks up wing block, also effectively controls the phenomenon that floating plug floats automatically, avoids causing pushing off the slag to lose efficacy.
Accompanying drawing explanation
Below the content expressed by each width accompanying drawing of this specification sheets and the mark in figure are briefly described:
Fig. 1 is floating plug organigram of the present invention.
In figure: 1. floating plug body, 2. guide rod, 3. power-assisted stick up wing block, the 4. conical surface, 5. end face, 6. stabilizer bar.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, a kind of steel-making converter tapping pushing off the slag floating plug, comprises floating plug body 1 and guide rod 2 and power-assisted and sticks up wing block 3.Preferably, floating plug body 1 is half American football shape structure, and guide rod 2 one end is connected with the tip of half American football shape structure, and axis and the half American football shape structure profile of guide rod 2 are perpendicular.
Power-assisted is stuck up wing block 3 and is arranged on the other end of guide rod 2, provides and enters converter taphole boosting power, make this physical efficiency of floating plug quick and precisely arrive converter taphole position to floating plug body.
Power-assisted sticks up wing block 3 for cone structure, and the end face 5 of cone structure is towards floating plug body 1, and the tip floating plug body dorsad of cone structure, the conical surface 4 of cone structure is cone surface, and stability is better.
The tip that power-assisted sticks up wing block 3 is extended with stabilizer bar 6, and stabilizer bar 6 and guide rod 2 coaxial line, improve guide effect.
In tapping process, by pushing off the slag dolly, floating plug is dropped in converter, in stove, steel stream washes away guide rod and power-assisted thereof and sticks up wing block and produce boosting power, floating plug body is drawn in tap hole place, now steel stream reduces rapidly, after about tens seconds, steel stream recovers normal, floating plug body is stable occupies tap hole position, drift can not be produced, when in converter, molten steel goes out to the greatest extent, floating plug by slag gear in stove not under, effectively block slag in converter, thus raising yield of alloy, reduce rephosphorization of molten steel to exceed standard, reduce molten steel to melt down, casting machine is disconnected to be watered, the productions such as strand waste product, quality accident, greatly reduce production cost.
The floating plug using the present invention to stick up wing assistance type compares traditional floating plug, and pushing off the slag qualification rate brings up to more than 94.5% by 92.5% monthly.Wherein, pushing off the slag qualification rate improves 1%, by generation economic benefit is:
1, steel 0.23kg/t steel is melted down in minimizing, reduces steel technology 0.023kg/t steel.
Calculate by steel technology 2.5 yuan/kg steel, steel technology reduces 0.023*2.5=0.0575 unit/t steel.
Calculate by annual 3600000 tons of steel, then steel technology reduces 0.0575*3600000=207000 unit/year.
Reduce annual alloy loss=(1742+1950) first * 12=44304 unit/year.
2, unplannedly minimizing 2 stoves/moon is changed the original sentence to.Calculate in batch by 65 tons/stove, change the original sentence to rear price and reduce the calculating of 150 yuan/t steel, then annual cost reduces 65*150*12*2=234000 unit/year.
3, casting machine is disconnected waters minimizing 1 time/month, and reduce Metal in Tundish loss 0.0666kg/t steel, monthly steel technology reduces 0.0666*2.5=0.1665 unit/t steel.Then annual steel technology reduces 0.1665*3600000=599400 unit/year.
Thus can estimate and fall this whole year:
(207000+44304+234000+599400) * 2=2169408 (unit/year).
Reduce the loss of time: within 60 minutes/time, calculate by the disconnected influence time that waters, save time 60*2*12=1440 minute/year.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (1)
1. a steel-making converter tapping pushing off the slag floating plug, comprise floating plug body (1) and guide rod (2), described guide rod (2) one end is connected with floating plug body (1), it is characterized in that: described guide rod (2) the other end is provided with provides the power-assisted entering converter taphole boosting power to stick up wing block (3) to floating plug body; It is cone structure that described power-assisted sticks up wing block (3), the end face (5) of cone structure towards floating plug body (1), the tip floating plug body dorsad of cone structure; The tip that described power-assisted sticks up wing block (3) is extended with stabilizer bar (6), stabilizer bar (6) and guide rod (2) coaxial line; Described floating plug body (1) is half American football shape structure, and guide rod (2) is connected with the tip of half American football shape structure; Axis and the half American football shape structure profile of guide rod are perpendicular; The conical surface of cone structure is cone surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125824.7A CN103184310B (en) | 2013-04-12 | 2013-04-12 | A kind of steel-making converter tapping pushing off the slag floating plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125824.7A CN103184310B (en) | 2013-04-12 | 2013-04-12 | A kind of steel-making converter tapping pushing off the slag floating plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103184310A CN103184310A (en) | 2013-07-03 |
| CN103184310B true CN103184310B (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310125824.7A Active CN103184310B (en) | 2013-04-12 | 2013-04-12 | A kind of steel-making converter tapping pushing off the slag floating plug |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019180082A1 (en) | 2018-03-22 | 2019-09-26 | Vesuvius U S A Corporation | Tap hole closure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2188132A (en) * | 1986-03-19 | 1987-09-23 | Labate Michael D | Slag retaining device for use in converters or ladles |
| GB2190475A (en) * | 1985-05-06 | 1987-11-18 | Insul Co Inc | Slag retaining device with self-aligning tip |
| US4871148A (en) * | 1988-08-09 | 1989-10-03 | Tetron, Inc. | Vortex inhibitor for molten metal discharge |
| CN2529875Y (en) * | 2002-01-18 | 2003-01-08 | 谭飞 | Slag rod guiding rod with convex rib or recess |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009076546A1 (en) * | 2007-12-11 | 2009-06-18 | Tetron, Inc. | Vortex inhibitor |
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2013
- 2013-04-12 CN CN201310125824.7A patent/CN103184310B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2190475A (en) * | 1985-05-06 | 1987-11-18 | Insul Co Inc | Slag retaining device with self-aligning tip |
| GB2188132A (en) * | 1986-03-19 | 1987-09-23 | Labate Michael D | Slag retaining device for use in converters or ladles |
| US4871148A (en) * | 1988-08-09 | 1989-10-03 | Tetron, Inc. | Vortex inhibitor for molten metal discharge |
| CN2529875Y (en) * | 2002-01-18 | 2003-01-08 | 谭飞 | Slag rod guiding rod with convex rib or recess |
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| Publication number | Publication date |
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| CN103184310A (en) | 2013-07-03 |
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