CN103184310A - Slag baffle piston for baffling slag of steel discharged out of steel smelting converter - Google Patents
Slag baffle piston for baffling slag of steel discharged out of steel smelting converter Download PDFInfo
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- CN103184310A CN103184310A CN2013101258247A CN201310125824A CN103184310A CN 103184310 A CN103184310 A CN 103184310A CN 2013101258247 A CN2013101258247 A CN 2013101258247A CN 201310125824 A CN201310125824 A CN 201310125824A CN 103184310 A CN103184310 A CN 103184310A
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- slag
- steel
- floating plug
- guide rod
- baffle piston
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Abstract
The invention discloses a slag baffle piston for baffling slag of steel discharged out of a steel smelting converter. The slag baffle piston comprises a slag baffle piston body and a guide rod, wherein one end of the guide rod is connected with the slag baffle piston body, and a boost wing-flanging block for offering a boost force used for enabling the slag baffle piston body to enter into a steel outlet of the converter to the slag baffle piston body is arranged on the other end of the guide rod. After the slag baffle piston is put into the converter, the boost wing-flanging block is washed by steel flow, a large boost force is generated, the slag baffle piston is quickly pulled to the position of the steel outlet, and the steel flow is quickly reduced; when the steel flow returns to normal, the position of the steel outlet is stably occupied by the slag baffle piston, and the slag baffle piston can not shift; due to a wing-flanging end face of the boost wing-flanging block, the guide rod is effectively controlled to be centered within the steel outlet, and the phenomenon of slag leakage caused by the incorrect piston position can be avoided; and the wing-flanging block is impacted by the steel flow, so that the phenomenon that the slag baffle piston automatically floats can be effectively controlled, and the unavailability of the slag stopping can be avoided.
Description
Technical field
The present invention relates to make steel the utility appliance technical field, 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 the pushing off the slag dolly, floating plug is dropped in the converter, utilize molten steel than great, converter slag proportion is little, the marginal principle of floating plug proportion, in tapping latter stage, molten steel all goes out ladle under the stove, and converter slag is blocked, stay in the converter, prevent slag with molten steel to going in the ladle.
High-temperature molten steel is to the continuous erosion of converter taphole, and it is increasing that tap hole becomes, and the tapping time is shorter and shorter, and fluidity molten steel is big in the converter.Mostly traditional floating plug is to be made up of the guide rod on cock body and the cock body, uses traditional floating plug pushing off the slag poor effect, very easily causes the floating plug drift, guide rod is not placed in the middle, can not fill in effectively accurately in the tap hole, cause that pushing off the slag is bad, the pushing off the slag weak effect, slag is entered in the ladle.The lighter causes that the alloy loss is big, the rate of recovery is low, and weight person causes the molten steel rephosphorization to exceed standard, and produces that molten steel melts down, casting machine is disconnected waters even produce production, quality accident such as waste product.
Summary of the invention
At the prior art deficiency, technical problem to be solved by this invention provides a kind of steel-making converter tapping pushing off the slag floating plug, is difficult for drift to reach floating plug, and can quick and precisely fills in the purpose in the converter taphole.
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 the floating plug body, and the described guide rod the other end is provided with to the floating plug body provides the power-assisted that enters the converter taphole boosting power to stick up the wing piece.
It is cone structure that described power-assisted is stuck up the wing piece, and the end face of cone structure is towards the floating plug body, and the tip of cone structure is the floating plug body dorsad.
The tip that described power-assisted is stuck up the wing piece 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: after floating plug drops in the converter, steel stream washes away power-assisted and sticks up the wing piece, produce big boosting power, fast floating plug is moved to the tap hole position, steel stream reduces rapidly, when steel stream recovers normal, floating plug is stable to occupy the tap hole position, and floating plug can not produce drift; Stick up the wing end face by what power-assisted was stuck up the wing piece, it is placed in the middle in tap hole to control guide rod effectively, is not just avoiding the plug position, produces and leaks the slag phenomenon; Steel stream impacts power-assisted and sticks up the wing piece, also effectively controls the floating plug phenomenon of come-up automatically, avoids causing pushing off the slag to lose efficacy.
Description of drawings
Below the expressed content of each width of cloth accompanying drawing of this specification sheets and the mark among the figure are made brief description:
Fig. 1 is floating plug organigram of the present invention.
Among the figure: 1. the floating plug body, 2. guide rod, 3. power-assisted is stuck up wing piece, the 4. conical surface, 5. end face, 6. stabilizer bar.
Embodiment
Contrast accompanying drawing below, the description by to embodiment is described in further detail the specific embodiment of the present invention.
As shown in Figure 1, a kind of steel-making converter tapping pushing off the slag floating plug comprises that floating plug body 1 and guide rod 2 and power-assisted stick up wing piece 3.Preferably, floating plug body 1 is half American football shape structure, and guide rod 2 one ends are connected with the tip of half American football shape structure, and the axis of guide rod 2 and half American football shape structure profile are perpendicular.
Power-assisted is stuck up on the other end that wing piece 3 is arranged on guide rod 2, provides for the floating plug body and enters the converter taphole boosting power, makes this physical efficiency of floating plug quick and precisely arrive the converter taphole position.
Power-assisted is stuck up wing piece 3 and is cone structure, and the end face 5 of cone structure is towards floating plug body 1, and the tip of cone structure is the floating plug body dorsad, and the conical surface 4 of cone structure is cone surface, and stability is better.
The tip that power-assisted is stuck up wing piece 3 is extended with stabilizer bar 6, and stabilizer bar 6 and guide rod 2 coaxial lines improve guide effect.
In tapping process, by the pushing off the slag dolly floating plug is dropped in the converter, the interior steel stream of stove washes away guide rod and power-assisted is stuck up wing piece generation boosting power, the floating plug body is drawn in the tap hole place, this moment, steel stream dwindled rapidly, after about tens seconds, steel stream recovers normal, the stable tap hole position that occupies of floating plug body, can not produce drift, when molten steel goes out to the greatest extent in the converter, floating plug with the slag retaining in stove not down, effectively block slag in the converter, thereby raising yield of alloy, reduce the molten steel rephosphorization and exceed standard, reduce molten steel and melt down, casting machine is disconnected to be watered, productions such as strand waste product, quality accident reduces production costs greatly.
The floating plug that uses the present invention to stick up the wing assistance type is compared traditional floating plug, and the pushing off the slag qualification rate was by every month 92.5% brought up to more than 94.5%.Wherein, the pushing off the slag qualification rate improves 1%, will produce economic benefit and be:
1, steel 0.23kg/t steel is melted down in minimizing, reduces iron and steel stock and consumes the 0.023kg/t steel.
Press iron and steel stock and consume the calculating of 2.5 yuan/kg steel, iron and steel stock consumption reduces 0.023*2.5=0.0575 unit/t steel.
Calculate by annual 3600000 tons of steel, then iron and steel stock consumption reduces 0.0575*3600000=207000 unit/year.
Reduce the first * 12=44304 of annual alloy loss=(1742+1950) unit/year.
2, unplanned changing the original sentence to reduces by 2 stove/moons.Calculate in batch by 65 tons/stove, change the original sentence to the back price and reduce the calculating of 150 yuan/t steel, then annual cost reduces 65*150*12*2=234000 unit/year.
3, disconnected the watering of casting machine reduced 1 time/month, reduces tundish molten steel loss 0.0666kg/t steel, and iron and steel stock consumption in every month reduces 0.0666*2.5=0.1665 unit/t steel.Then annual iron and steel stock consumption reduces 0.1665*3600000=599400 unit/year.
Thereby can estimate and fall this whole year:
(207000+44304+234000+599400) * 2=2169408 (unit/year).
Reduce the loss of time: calculated in 60 minutes/time by the disconnected influence time that waters, saved time 60*2*12=1440 minute/year.
By reference to the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (4)
1. steel-making converter tapping pushing off the slag floating plug, comprise floating plug body (1) and guide rod (2), described guide rod (2) one ends are connected with floating plug body (1), it is characterized in that: described guide rod (2) the other end is provided with to the floating plug body provides the power-assisted that enters the converter taphole boosting power to stick up wing piece (3).
2. steel-making converter as claimed in claim 1 tapping pushing off the slag floating plug, it is characterized in that: it is cone structure that described power-assisted is stuck up wing piece (3), and the end face of cone structure (5) is towards floating plug body (1), and the tip of cone structure is the floating plug body dorsad.
3. steel-making converter as claimed in claim 2 tapping pushing off the slag floating plug, it is characterized in that: the tip that described power-assisted is stuck up wing piece (3) is extended with stabilizer bar (6), stabilizer bar (6) and guide rod (2) coaxial line.
4. as each described steel-making converter tapping pushing off the slag floating plug of claim 1 to 3, it is characterized in that: 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.
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 true CN103184310A (en) | 2013-07-03 |
| CN103184310B CN103184310B (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| CN (1) | CN103184310B (en) |
Cited By (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 (5)
| 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 |
| WO2009076546A1 (en) * | 2007-12-11 | 2009-06-18 | Tetron, Inc. | Vortex inhibitor |
-
2013
- 2013-04-12 CN CN201310125824.7A patent/CN103184310B/en active Active
Patent Citations (5)
| 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 |
| WO2009076546A1 (en) * | 2007-12-11 | 2009-06-18 | Tetron, Inc. | Vortex inhibitor |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN103184310B (en) | 2015-10-07 |
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