CN207987279U - A kind of converter spherical shape bottom construction - Google Patents
A kind of converter spherical shape bottom construction Download PDFInfo
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- CN207987279U CN207987279U CN201721790036.XU CN201721790036U CN207987279U CN 207987279 U CN207987279 U CN 207987279U CN 201721790036 U CN201721790036 U CN 201721790036U CN 207987279 U CN207987279 U CN 207987279U
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- brick
- arc
- shaped transition
- molten bath
- converter
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- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model provides a kind of converter spherical shape bottom construction, it is made of shaft brick, molten bath arc-shaped transition brick, furnace bottom arc-shaped transition brick and round bottom brick；The converter bottom is equipped with round bottom brick, and furnace wall and round kiln bottom, shaft brick are interregional, and there are trigonums；The round bottom brick passes sequentially through furnace bottom arc-shaped transition brick, molten bath arc-shaped transition brick to shaft region transfers so that circular furnace bottom and molten bath formed one it is spherical whole, trigonum area is greatly decreased.The utility model can effectively disperse dore furnace bottom and molten bath area thermal stress by spherical structure form, extend converter service life；Utility model is using arc-shaped transition area and circular furnace bottom structure simultaneously, reduces in smelting process the resistance of motion between molten steel and refractory material, achievees the purpose that reduce furnace bottom and molten bath magnesia carbon brick melting loss.
Description
Technical field
The utility model belongs to field of iron and steel smelting, and in particular to a kind of converter spherical shape bottom construction.
Background technology
When converter smelting low-carbon, Low-phosphorus Steel, molten bath area that the high oxidative of molten steel and clinker leads to furnace bottom and adjoins therewith
Domain is corroded seriously, and furnace bottom significantly fluctuates above and below, is caused combined blown converter bottom blowing element to block, mixing effect decline, is effectively blown again
Than reducing, and the structure type of furnace bottom has a direct impact using effect.
The prior art is primarily present following problem：Existing converter bottom generally use " annular design returns flat turn ", i.e., by
Shaft magnesia carbon brick, the flat block magnesia carbon brick in molten bath, furnace bottom return flat magnesia carbon brick, trigonum and round kiln bottom magnesia carbon brick composition (such as Fig. 2 institutes
Show).Flat regional structure imprecision is returned in round kiln bottom with molten bath, furnace bottom, and trigonum removes difficulties, and there are bleed-out risks；" return flat turn over
Body " section is maximum to the resistance of molten steel stream, stress concentration, and magnesia carbon brick melting loss is fast；During follow-up maintenance, furnace bottom is relatively hard to keep
The perfect condition of " middle concave, edge are convex ", it is bad to blow mixing effect again, effectively blows again than low, and hidden danger of keeping the safety in production is larger.
Utility model content
To solve the above problems, the utility model provides a kind of converter spherical shape bottom construction, simple in structure, construction party
Just, it can effectively cut down trigonum, furnace bottom and molten bath magnesia carbon brick melting loss can be effectively reduced.
The specific technical solution of the utility model is as follows：A kind of converter spherical shape bottom construction, it is by shaft brick, molten bath arc
Transitional brick, furnace bottom arc-shaped transition brick, trigonum and round bottom brick composition；The shaft brick is arranged in converter body region；
The converter bottom is equipped with round bottom brick, and there are trigonums for transitional region between furnace wall and round bottom brick, shaft brick；
The round bottom brick passes sequentially through furnace bottom arc-shaped transition brick, molten bath arc-shaped transition brick to shaft region transfers so that circular furnace
Bottom forms a spherical entirety with molten bath, and trigonum area is greatly decreased.
Further, the shaft brick, molten bath arc-shaped transition brick, furnace bottom arc-shaped transition brick, round bottom brick material are
Magnesium carbon, brick are designed according to converter shell shape and process requirements.
Further, refractory material is filled in the trigonum.
Compared with prior art, it is the advantages of the utility model：
1) the circular furnace bottom of the utility model by spherical designs to the transition of molten bath position so that circular furnace bottom is formed with furnace wall brick
One spherical whole, cuts down trigonum area, it is dangerous to reduce bleed-out；
2) the utility model can effectively disperse dore furnace bottom and molten bath area thermal stress by spherical structure form, extend
Converter service life；
3) the utility model is reduced in smelting process using arc-shaped transition area and circular furnace bottom structure between molten steel and refractory material
The resistance of motion can achieve the purpose that reduce furnace bottom and molten bath magnesia carbon brick melting loss.
Description of the drawings
Fig. 1 is the utility model spherical shape bottom construction schematic diagram；
Fig. 2 is prior art bottom construction schematic diagram；
1- shaft bricks, the molten baths 2- arc-shaped transition brick, 3- furnace bottom arc-shaped transition bricks, the trigonums 4-, 5- circle bottom bricks, 6- are molten
Pond brick laid on flat, 7- furnace bottoms return flat brick.
Specific implementation mode
The utility model is further described through with reference to the accompanying drawings of the specification.
Embodiment 1
As shown in Figure 1, a kind of converter spherical shape bottom construction of the utility model, it by shaft brick 1, molten bath arc-shaped transition brick 2,
Furnace bottom arc-shaped transition brick 3, trigonum 4 and round bottom brick 5 form.Converter bottom is equipped with round bottom brick 5, furnace wall and circle
Bottom brick 5, there are trigonums 4 for 1 transitional region of shaft brick；Round bottom brick 5 passes sequentially through furnace bottom arc-shaped transition brick 3, melts
Pond arc-shaped transition brick 2 is to shaft region transfers so that circular furnace bottom and molten bath formed one it is spherical whole, total is tight, makes
The area for obtaining trigonum 4 is greatly decreased, and then it is dangerous to reduce bleed-out；Shaft brick 1 is arranged in converter body region.
Since the utility model uses spherical structure form, furnace bottom and molten bath area thermal stress obtain dispersion and decompose, only in arc
There is smaller fluctuation with furnace bottom, arc-shaped transition area and shaft junction in shape transition region；The utility model passes through arc-shaped transition area
Coordinate with circular furnace bottom, the resistance of motion between molten steel and refractory material, reduces furnace bottom and molten bath magnesia carbon brick melting loss in reduction smelting process.
Above-mentioned shaft brick 1, molten bath arc-shaped transition brick 2, furnace bottom arc-shaped transition brick 3,5 material of round bottom brick are magnesium carbon,
Brick is designed according to converter shell shape and process requirements, can meet it is various in the case of use demand, strong applicability.
If there is also just it is filled with refractory materials for trigonum 4 so that entire bottom construction is tighter.
Embodiment 2
In conjunction with the embodiments 1, a kind of nominal capacity is 300 tons of converter spherical shape bottom constructions, shaft brick 1, molten bath arc-shaped transition
MT-14, MT-16, MT-16, MT-18 magnesia carbon refractory is respectively adopted in brick 2, furnace bottom arc-shaped transition brick 3, round bottom brick 5
It is made.
After installation, if there is trigonum 4, QD-6 magnesian ramming mass is filled.The length of shaft brick 1 in the present embodiment
Degree is 900mm, thickness 100-150mm；The length of molten bath arc-shaped transition brick 2 is 950-980mm, thickness 100-150mm；
The length of furnace bottom arc-shaped transition brick 3 is 1000-1100mm, thickness 100-150mm；The length of round bottom brick 5 is 1150mm,
Thickness is 100-150mm.
It is compared by above-described embodiment, under same working condition：It is molten using the utility model spherical shape bottom construction furnace bottom
It damages speed and reduces 40%, molten bath melting loss speed reduces 60%, effectively blows rate again and improves 30%, reduces security risk, improve
Production efficiency.
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 (3)
1. a kind of converter spherical shape bottom construction, which is characterized in that it is by shaft brick (1), molten bath arc-shaped transition brick (2), furnace bottom arc
Shape transitional brick (3), trigonum (4) and round bottom brick (5) form；The shaft brick (1) is arranged in converter body region；Institute
The converter bottom stated is equipped with round bottom brick (5), between furnace wall and round bottom brick (5), shaft brick (1) transitional region there are
Trigonum (4)；The round bottom brick (5) passes sequentially through furnace bottom arc-shaped transition brick (3), molten bath arc-shaped transition brick (2) to stove
Body region transfers so that circular furnace bottom forms a spherical entirety with molten bath, and trigonum (4) area is greatly decreased.
2. a kind of converter spherical shape bottom construction according to claim 1, which is characterized in that the shaft brick (1), molten bath
Arc-shaped transition brick (2), furnace bottom arc-shaped transition brick (3), round bottom brick (5) material are magnesium carbon, and brick is according to converter shell shape
And process requirements design.
3. a kind of converter spherical shape bottom construction according to claim 1, which is characterized in that filled out in the trigonum (4)
Filled with refractory material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721790036.XU CN207987279U (en) | 2017-12-20 | 2017-12-20 | A kind of converter spherical shape bottom construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721790036.XU CN207987279U (en) | 2017-12-20 | 2017-12-20 | A kind of converter spherical shape bottom construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207987279U true CN207987279U (en) | 2018-10-19 |
Family
ID=63817717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721790036.XU Active CN207987279U (en) | 2017-12-20 | 2017-12-20 | A kind of converter spherical shape bottom construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207987279U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893144A (en) * | 2017-12-20 | 2018-04-10 | 马鞍山钢铁股份有限公司 | A kind of spherical bottom construction of converter |
| CN113201624A (en) * | 2021-05-11 | 2021-08-03 | 马鞍山钢铁股份有限公司 | Design method of converter bottom transition brick |
-
2017
- 2017-12-20 CN CN201721790036.XU patent/CN207987279U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893144A (en) * | 2017-12-20 | 2018-04-10 | 马鞍山钢铁股份有限公司 | A kind of spherical bottom construction of converter |
| CN113201624A (en) * | 2021-05-11 | 2021-08-03 | 马鞍山钢铁股份有限公司 | Design method of converter bottom transition brick |
| CN113201624B (en) * | 2021-05-11 | 2022-03-25 | 马鞍山钢铁股份有限公司 | Design method of converter bottom transition brick |
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