CN207987278U - A kind of converter tapping vortex inhibitor - Google Patents
A kind of converter tapping vortex inhibitor Download PDFInfo
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- CN207987278U CN207987278U CN201721793055.8U CN201721793055U CN207987278U CN 207987278 U CN207987278 U CN 207987278U CN 201721793055 U CN201721793055 U CN 201721793055U CN 207987278 U CN207987278 U CN 207987278U
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- converter
- pipeline
- ventilated element
- gas chamber
- tapping
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Abstract
The utility model discloses a kind of converter tapping vortex inhibitor, it is made of ventilated element, refractory brick, flange, gas chamber, pipeline, is mounted on converter taphole region；Described gas chamber one end is welded and fixed by flange and converter shell, and the other end is connect with pipeline；The ventilated element is wrapped up by refractory brick, is extended to inside converter from gas chamber.Utility model device inputs gas by ventilated element and pipeline, gas enters quickly forms disperse bubble at high temperature in converter, and then the micro- whirlpool for destroying tapping hole areas adjacent when the injection of steel circulation road molten steel passes through generates, vortex slag is greatly decreased, deoxidier, alloy consumption, promotion molten steel quality purpose are reduced so as to reach.
Description
Technical field
The utility model belongs to field of iron and steel smelting, and in particular to a kind of converter tapping vortex inhibitor.
Background technology
Vortex is a kind of phenomenon common in daily life, it be fluid in flow process due to being flowed between adjacent each particle
It caused by speed is inconsistent, accumulates and amplifies when countless micro- whirlpools, just become visible vortex.In BOF steelmaking shop, molten steel from
In converter to ladle transfer process, often a large amount of clinkers are involved in molten steel and enter ladle caused by vortex.
It is primarily present following problem：Converter tapping slag divides three phases, wherein about 20% is happened at tapping beginning rank
Section, 45% appears in tapping process (vortex slag), and residue about 35% is happened at tapping ending phase.Current technology equipment is main
For tapping latter stage pushing off the slag design, it cannot effectively solve the problems, such as that tapping process is vortexed slag, cause dregginess in ladle big, cause
Rephosphorization of molten steel, yield of alloy reduction, steel inclusion increase, molten steel pollution, the increase of ladle dry slag, refractory consumption rate etc. are
Row problem.
Utility model content
To solve the above problems, the utility model provides a kind of converter tapping vortex inhibitor, and it is simple in structure, it uses
It is convenient, it can effectively inhibit opening vortex generation of tapping, to improve steel quality.
The specific technical solution of the utility model is as follows：A kind of converter tapping vortex inhibitor, it is by ventilated element, resistance to
Firebrick, flange, gas chamber, pipeline composition, are mounted on converter taphole region, described gas chamber one end passes through flange and converter shell
It is welded and fixed, the other end is connect with pipeline；The ventilated element is wrapped up by refractory brick, is extended to inside converter from gas chamber.
Further, the ventilated element can be made of single-layer metal pipe, the double-deck circumferential weld metal tube or refractory material
Honeycomb pipeline, ventilated element aperture or circumferential weld gap are 0.1-50mm.
Further, when ventilated element selects metal tube, fire resisting filler material is filled between ventilated element and refractory brick.
Further, the pipeline can be metal hose or hard tube, be determined according to ventilated element flow demand.
Further, the gas inputted in the pipeline smelts steel grade decision, preferably argon gas or nitrogen according to specific.
Further, the flange is preferably metal material；Gas chamber is preferably heat-resistance stainless steel.
Further, the quantity of the tapping vortex inhibitor can be one or more sets.
Compared with prior art, the beneficial effects of the utility model are：
1) a kind of converter tapping vortex inhibitor of the utility model inputs gas by ventilated element, pipeline, and gas exists
Disperse bubble is quickly formed under high temperature, is destroyed steel circulation road whirlpool, vortex slag is greatly decreased, so as to reach reduction deoxidation
Agent, promotes molten steel quality purpose at alloy consumption；
2) utility model device is easy for installation, easily operated, and operating cost is low, can promote the use of on a large scale.
Description of the drawings
Fig. 1 is the structural schematic diagram of utility model device；
Fig. 2 is the fundamental diagram of utility model device；
Fig. 3 is the installation diagram in utility model device tapping hole region；
In figure：1, converter, 2, molten steel, 3, bubble, 4, tapping hole region, 4-1 tapping hole brick cups, 4-2 tapping hole sleeve bricks,
4-3 steel circulation roads, 5, vortex inhibitor, 5-1 ventilated elements, 5-2 filling fire resisting materials, 5-3 refractory brick, 5-4 converter shells,
5-5 flanges, 5-6 gas chambers, 5-7 pipelines.
Specific implementation mode
The utility model is further described through with embodiment with reference to the accompanying drawings of the specification.
Embodiment 1
As shown in Figure 1, a kind of converter tapping vortex inhibitor of the utility model, it is by ventilated element 5-1, refractory brick 5-
3, flange 5-5, gas chamber 5-6, pipeline 5-7 compositions, are mounted on converter taphole region；The one end gas chamber 5-6 is by flange 5-5 and turns
Stove furnace shell 5-4 is welded and fixed, and the other end is connect with pipeline 5-7；Ventilated element 5-1 is wrapped up by refractory brick 5-3, is prolonged from gas chamber 5-6
It reaches inside converter 1.
Above-mentioned ventilated element 5-1 is mainly used for conveying gas into converter 1, can be single-layer metal pipe, the double-deck circumferential weld
Honeycomb pipeline made of metal tube or refractory material, the aperture or circumferential weld gap of ventilated element 5-1 are 0.1-50mm.When ventilative member
When part 5-1 is tubular metal gas passage, fire resisting filler material 5-2 must be used to fill with the fit-up gaps refractory brick 5-3.
Above-mentioned pipeline 5-7 can be metal hose or hard tube, it is true with specific reference to ventilated element 5-1 flow demands
It is fixed.The gas inputted in pipeline 5-7 is determined according to specific steel grade of smelting, it is generally preferable to be argon gas or nitrogen.
In order to preferably use the present apparatus, refractory brick 5-3 is preferably magnesium carbonaceous, according to actual condition, it is also possible to Qi Tacai
Matter；Flange 5-5 is preferably metal material；Gas chamber 5-6 is preferably heat-resistance stainless steel, according to actual condition, it is also possible to other materials；
The service life of vortex inhibitor 5 can be extended in this way.
In actual use, the utility model tapping vortex inhibitor 5 is mounted on 1 tapping hole region 4 of converter, passed through
Ventilated element 5-1 and pipeline 5-7 inputs gas, quickly forms disperse bubble 3 at high temperature in gas input converter 1, and then broken
Micro- whirlpool when bad steel circulation road 4-3 molten steel injection passes through near tapping hole region 4 generates, and reduces molten steel 2 in transport process
Clinker is involved in ladle；On a block converter, as the case may be, tapping vortex inhibitor 5 can install one or more sets, go out
Fig. 3 is shown in the assembly of steel mouth region domain.
Embodiment 2
In conjunction with the embodiments 1, give a kind of 300 tons of bof converters tapping vortex inhibitor uses example.This implementation
Ventilated element 5-1 in example uses 310S high temperature resistant stainless steels, is circumferential weld shape gas passage；Aperture inside and outside circumferential weld shape gas passage
Respectively 20mm, 22mm, circumferential weld 2mm, the magnesia 5-2 with the fit-up gaps refractory brick 5-3 with content of MgO more than 95.0% are filled out
It fills.
Refractory brick 5-3 in the present embodiment selects magnesium carbonaceous MT-14, thick 150mm；Flange 5-5 selects 310S high temperature resistants not
Rust steel material；Gas chamber 5-6 selects 310S high temperature resistant stainless steels, internal diameter 50mm；Pipeline 5-7 selects metal hose, caliber 30mm, defeated
Enter for argon gas, flow 20m3/h.
Notable using utility model device advantageous effect, converter tapping process slag amount is small, and ladle top slag is thick after tapping
Degree reduces 30mm or more；Just for steel-making water after LF refining, rephosphorization amount reduces 0.0020wt%, and steel quality improves；Smelt aluminium town
When quiet steel, the consumption of final deoxidizing aluminium can save 0.4kg/t molten steel.
More than, the only preferable case study on implementation of the utility model, but protection scope of the utility model is not limited thereto,
Any one skilled in the art within the technical scope disclosed by the utility model, the variation that can readily occur in or replaces
It changes, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with claim
Subject to the protection domain defined.
Claims (7)
1. a kind of converter tapping vortex inhibitor, characterized in that it is by ventilated element (5-1), refractory brick (5-3), flange (5-
5), gas chamber (5-6), pipeline (5-7) composition, are mounted on converter (1) tapping hole region (4)；Described one end gas chamber (5-6) passes through
Flange (5-5) is welded and fixed with converter shell (5-4), and the other end is connect with pipeline (5-7)；The ventilated element (5-1) by
Refractory brick (5-3) wraps up, and it is internal to extend to converter (1) from gas chamber (5-6).
2. a kind of converter tapping vortex inhibitor according to claim 1, characterized in that the ventilated element (5-
1) can be honeycomb pipeline, ventilated element aperture or circumferential weld made of single-layer metal pipe, the double-deck circumferential weld metal tube or refractory material
Gap is 0.1-50mm.
3. according to a kind of converter tapping vortex inhibitor of claim 1-2 any one of them, characterized in that work as ventilated element
When (5-1) selects metal tube, fire resisting filler material (5-2) is filled between ventilated element (5-1) and refractory brick (5-3).
4. a kind of converter tapping vortex inhibitor according to claim 1, characterized in that the pipeline (5-7) can
Think metal hose or hard tube, is determined according to ventilated element (5-1) flow demand.
5. a kind of converter tapping vortex inhibitor according to claim 1, characterized in that in the pipeline (5-7)
The gas of input is argon gas or nitrogen.
6. a kind of converter tapping vortex inhibitor according to claim 1, characterized in that the flange (5-5) is
Metal material；Gas chamber (5-6) is heat-resistance stainless steel.
7. a kind of converter tapping vortex inhibitor according to claim 1, characterized in that the tapping vortex inhibits
The quantity of device (5) can be one or more sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721793055.8U CN207987278U (en) | 2017-12-20 | 2017-12-20 | A kind of converter tapping vortex inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721793055.8U CN207987278U (en) | 2017-12-20 | 2017-12-20 | A kind of converter tapping vortex inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207987278U true CN207987278U (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721793055.8U Active CN207987278U (en) | 2017-12-20 | 2017-12-20 | A kind of converter tapping vortex inhibitor |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858479A (en) * | 2017-12-20 | 2018-03-30 | 马鞍山钢铁股份有限公司 | A kind of converter tapping vortex inhibitor |
-
2017
- 2017-12-20 CN CN201721793055.8U patent/CN207987278U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858479A (en) * | 2017-12-20 | 2018-03-30 | 马鞍山钢铁股份有限公司 | A kind of converter tapping vortex inhibitor |
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