CN208501032U - A kind of quincuncial pile formula converter bottom structure - Google Patents
A kind of quincuncial pile formula converter bottom structure Download PDFInfo
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- CN208501032U CN208501032U CN201821097556.7U CN201821097556U CN208501032U CN 208501032 U CN208501032 U CN 208501032U CN 201821097556 U CN201821097556 U CN 201821097556U CN 208501032 U CN208501032 U CN 208501032U
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Abstract
A kind of quincuncial pile formula converter bottom structure, including the high brick of centre runner brick, furnace bottom, furnace bottom bottom brick, the center brick masonry is in the axis center position of furnace bottom, and ring builds the high brick of furnace bottom and furnace bottom bottom brick around centre runner brick, and successively builds the high brick of furnace bottom and furnace bottom bottom brick to outer ring；The high brick of furnace bottom and furnace bottom bottom brick that circumferential direction is built are spaced apart from each other, and the high brick dislocation of the furnace bottom of adjacent two ring is built；Interlocked by the high brick of furnace bottom and furnace bottom bottom brick and builds the area Zhua Zha for forming the recess that is staggered.Compared with prior art, the beneficial effects of the utility model are: the structure of the utility model is built tightly, it is safe to guarantee that pneumatic steelmaking uses, greatly improve the life of converter for strengthening bottom blowing effect, reduce the ton steel refractory consumption of refractory material, it ensure that bottom-blowing of converter effect, improve the product quality of ultra-low-carbon steel, reduce the steel-making cost of ultra-low-carbon steel.
Description
Technical field
The utility model relates to the construction method of smelting iron and steel converter bottom more particularly to a kind of quincuncial pile formula Converters
Bottom structure.
Background technique
Currently, many famous iron companies are all very positive to the research and production of ultra-low-carbon steel in the world, such as Japan
Kawasaki, Nippon Steel, Armco, the Inland in the U.S., domestic precious force, Anshan iron and steel plant etc..The production of ultra-low-carbon steel has become a country
The mark of automotive sheet production level.
Converter has the cleanliness of RH decarburization and molten steel critically important as most important production equipment before RH refining furnace
Influence, therefore study ultra-low-carbon steel converter smelting be of great significance.
In recent years, domestic pneumatic steelmaking was to improve ultra-low-carbon steel to smelt level, rationally controlled converter tapping carbon content and oxygen
Content and done many work.Converter terminal molten steel carbon oxygen product is reduced simultaneously for reducing molten-steel deoxidation agent consumption, reducing in steel
Quantity, reduction clinker special iron (TFe) content and the reduction steel technology of non-metallic inclusion play vital
Effect.So, how while guaranteeing certain carbon mass fraction, the oxygen mass fraction in molten steel is reduced as far as possible, for super
The smelting important in inhibiting of mild steel.In order to control the carbon oxygen product of converter tapping molten steel terminal, the effect of top and bottom complex blowing is it
In a vital factor.
In actual production, due to splashing the technique of slag, Converter Bottom Rising is caused, bottom blowing effect is affected and makes carbon oxygen anti-
The dynamic conditions answered is deteriorated, so that converter tapping molten steel aim carbon oxygen product be made to increase.If taking converter furnace bottom to operate, bottom blowing
Effect makes moderate progress, and enhances the stirring capacity of molten steel, provides good dynamic conditions for reaction between carbon and oxygen, and then make converter
The carbon oxygen product of tapping molten steel terminal reduces, but the effective working lining thickness of furnace bottom is insufficient, seriously affects the safe operation of converter.
The structure design of different type of furnace converter bottoms directly affects the service life of converter bottom, especially to reinforcing bottom blowing effect
Converter becomes apparent.Currently, the masonry construction of China overwhelming majority mammoth conveter furnace bottom is all to take annular masonry, Fig. 3, figure are seen
4.Hearth center brick 1 is the circular platform type of lower thick upper thin, schedules hearth center, it is mutual that down big up small long wedge type brick is close to centre runner brick
It is built by next ring, the first ring has been built, and external brick face polishing builds the second ring (reduce circumferential weld to the greatest extent) afterwards, and so on, directly
It is completed to masonry of well, bottom brick hot end is in ball-type.The design structure of above-mentioned furnace bottom, it is unfavorable in converter producing operational process
Slag is grabbed in bottom brick hot end, can not effectively rely on clinker protection stove bottom, it is particularly disadvantageous in the saturating of reinforcing bottom blowing effect converter
Gas brick position corrosion resistance, it is serious to generate local pit 7, see Fig. 3, restricts the service life of furnace bottom, while bottom blowing effect
It not can guarantee, lose the ability of blowing ultra-low-carbon steel.Converter bottom service life is low, cause furnace bottom and lining durability can not
Match, resistance to material overall cost is high, uneconomical.Especially under the severe situation that present steel industry ultra-low-carbon steel is developed and is produced, no
Be able to satisfy high-quality, cost declining, low energy consumption requirement.
Utility model content
The purpose of the utility model is to overcome prior art defect, a kind of structure is provided and builds tight, guarantees pneumatic steelmaking
Using safe quincuncial pile formula converter bottom structure, which greatly improves the life of converter for strengthening bottom blowing effect, reduces
The ton steel refractory consumption of refractory material, ensure that bottom-blowing of converter effect, improve the product quality of ultra-low-carbon steel, reduce ultralow
The steel-making cost of carbon steel.
In order to achieve the above object, the utility model is implemented with the following technical solutions:
A kind of quincuncial pile formula converter bottom structure, including the high brick of centre runner brick, furnace bottom, furnace bottom bottom brick, the center brick masonry
In the axis center position of furnace bottom, ring builds the high brick of furnace bottom and furnace bottom bottom brick around centre runner brick, and successively builds the high brick of furnace bottom to outer ring
With furnace bottom bottom brick；The high brick of furnace bottom and furnace bottom bottom brick that circumferential direction is built are spaced apart from each other, and the high brick dislocation of the furnace bottom of adjacent two ring is built；By
The high brick of furnace bottom and furnace bottom bottom brick staggeredly build the area Zhua Zha for forming the recess that is staggered.
It further include ventilative shield brick, porous core brick, the ventilative shield brick is around porous core brick masonry, in the ventilative shield
Around 360 ° of high bricks in masonry heater bottom around brick, the ventilative shield brick, porous core brick are consistent with the high brick height of furnace bottom.
The centre runner brick height is consistent with the high brick height of furnace bottom.
The difference in height of the furnace bottom high brick and furnace bottom bottom brick are as follows: 50-150mm.
Compared with prior art, the utility model has the beneficial effects that
The structure of the utility model is built tightly, and it is safe to guarantee that pneumatic steelmaking uses, greatly improves and strengthens bottom blowing effect
Life of converter reduces the ton steel refractory consumption of refractory material, ensure that bottom-blowing of converter effect, improve the product of ultra-low-carbon steel
Quality reduces the steel-making cost of ultra-low-carbon steel.
Detailed description of the invention
Fig. 1 is the bottom construction sectional view of the utility model.
Fig. 2 is the bottom construction top view of the utility model.
Fig. 3 is prior art bottom construction sectional view.
Fig. 4 is the bottom construction top view of the prior art.
In figure: 1- centre runner brick, the high brick of 2- furnace bottom, 3- furnace bottom bottom brick, the area 4- Zhua Zha, the ventilative shield brick of 5-, 6- porous core brick,
7- pit.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
See Fig. 1-Fig. 2, a kind of quincuncial pile formula converter bottom structure, including the high brick 2 of centre runner brick 1, furnace bottom, furnace bottom bottom brick 3, institute
It states centre runner brick 1 to build in the axis center position of furnace bottom, ring builds the high brick 2 of furnace bottom and furnace bottom bottom brick 3 around centre runner brick 1, and successively
The high brick 2 of furnace bottom and furnace bottom bottom brick 3 are built to outer ring；The high brick 2 of furnace bottom and furnace bottom bottom brick 3 that circumferential direction is built are spaced apart from each other, adjacent two ring
Furnace bottom high brick 2 dislocation build；Interlocked by the high brick 2 of furnace bottom and furnace bottom bottom brick 3 and builds the area Zhua Zha 4 for forming the recess that is staggered.
It further include ventilative shield brick 5, porous core brick 6, the ventilative shield brick 5 is built around porous core brick 6, described
Gas protects around brick 5 around the high brick 2 in 360 ° of masonry heater bottoms, the ventilative shield brick 5, porous core brick 6 and high 2 height one of brick of furnace bottom
It causes.
1 height of centre runner brick is consistent with high 2 height of brick of furnace bottom.
The difference in height of the furnace bottom high brick 2 and furnace bottom bottom brick 3 are as follows: 50-150mm.
The high brick 2 of furnace bottom and furnace bottom bottom brick 3 are down big up small long wedge structure.
The high brick 2 of furnace bottom and the high bottom drop of furnace bottom bottom brick 3 are 50-150mm；The high brick 2 of circumferential furnace bottom with furnace bottom bottom brick 3 separately
Distance is 100-300mm；The high brick 2 of the furnace bottom of adjacent two interannular is staggered masonry, and interval is furnace bottom bottom brick 3.Around ventilative shield brick 5
360 ° of encirclement layouts are carried out according to the high brick 2 of furnace bottom.It is closely built by the high brick 2 of furnace bottom, furnace bottom bottom brick 3 and forms an entirety, structure
At quincuncial pile formula converter bottom structure.
When masonry: middle line brick 1 is determined, using in the down big up small high brick 2 of long wedge type furnace bottom, the interruption abutting of furnace bottom bottom brick 3
Heart brick mutually leans on next ring to build, and the first ring has been built, and external brick face is polished builds the second ring (reduce circumferential weld to the greatest extent) afterwards, and second
Ring masonry adopts the down big up small high brick 2 of long wedge type furnace bottom, the interruption of furnace bottom bottom brick 3 is close to the first ring and next ring is mutually leaned on to build, with
This analogizes, and guarantees that adjacent two rings height is staggered.
360 ° of encirclement layouts are carried out according to the high brick 2 of furnace bottom around ventilative shield brick 5, until masonry of well is completed.Pass through furnace bottom
High brick 2, furnace bottom bottom brick 3, which are closely built, forms an entirety, composition quincuncial pile formula converter bottom structure, structure formation height,
The inside and outside in picturesque disorder area Zhua Zha 4 realizes air brick region without slag blanket, and the non-breathable full slag blanket covering in brick region both guarantees to breathe freely
The effective bottom blowing in brick region, and strengthen non-breathable brick region anti-erosion and erosion resistibility.
Embodiment 1:
A kind of work capacity is referred to as 200 tons of quincuncial pile formula converter bottom structure, the high brick 2 of centre runner brick 1, furnace bottom, furnace bottom bottom brick
3, shield of breathing freely brick 5, porous core brick 6 are all made of MT-16A magnesia carbon refractory and are made.
After building construction, 1 length of centre runner brick in the present embodiment is 880mm, high 2 length of brick of furnace bottom is 880mm, furnace bottom bottom
3 length of brick is 800mm, ventilative shield 5 length of brick is 880mm, porous core brick length is 880mm, form height difference 80mm,
The inside and outside in picturesque disorder area Zhua Zha 4.
It is compared by embodiment, under same working condition: using the utility model quincuncial pile formula converter bottom structure, grab
The formation in slag area 4 realizes air brick region without slag blanket, and the non-breathable full slag blanket covering in brick region had both guaranteed that air brick region was effective
Bottom blowing, and strengthen non-breathable brick region anti-erosion and erosion resistibility.Not only by the full furnace labour of converter averagely tapping aim carbon oxygen
Product by 0.0028 is down to 0.0023, but make furnace life improved by 4500 furnaces realized to 6000 furnaces furnace bottom under effective bottom blowing with
Lining durability synchronizes, and improves the product quality of ultra-low-carbon steel, reduces the steel-making cost of ultra-low-carbon steel.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to encompass within these modification and variations.
Claims (4)
1. a kind of quincuncial pile formula converter bottom structure, which is characterized in that a kind of quincuncial pile formula converter bottom structure, including center
The high brick of brick, furnace bottom, furnace bottom bottom brick, the center brick masonry is in the axis center position of furnace bottom, and it is high to build furnace bottom for ring around centre runner brick
Brick and furnace bottom bottom brick, and successively the high brick of furnace bottom and furnace bottom bottom brick are built to outer ring；The high brick of furnace bottom and furnace bottom bottom brick phase that circumferential direction is built
Mutually interval, the high brick dislocation of the furnace bottom of adjacent two ring are built；It is staggeredly built by the high brick of furnace bottom and furnace bottom bottom brick and forms the recess that is staggered
The area Zhua Zha.
2. a kind of quincuncial pile formula converter bottom structure according to claim 1, which is characterized in that further include ventilative shield brick,
Porous core brick, the ventilative shield brick is around porous core brick masonry, around 360 ° of masonry heater bottoms around the ventilative shield brick
High brick, the ventilative shield brick, porous core brick are consistent with the high brick height of furnace bottom.
3. a kind of quincuncial pile formula converter bottom structure according to claim 1, which is characterized in that the centre runner brick height with
The high brick height of furnace bottom is consistent.
4. a kind of quincuncial pile formula converter bottom structure according to claim 1, which is characterized in that the high brick of the furnace bottom and furnace
The difference in height of bottom bottom brick are as follows: 50-150mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821097556.7U CN208501032U (en) | 2018-07-09 | 2018-07-09 | A kind of quincuncial pile formula converter bottom structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821097556.7U CN208501032U (en) | 2018-07-09 | 2018-07-09 | A kind of quincuncial pile formula converter bottom structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208501032U true CN208501032U (en) | 2019-02-15 |
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ID=65284349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821097556.7U Withdrawn - After Issue CN208501032U (en) | 2018-07-09 | 2018-07-09 | A kind of quincuncial pile formula converter bottom structure |
Country Status (1)
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| CN (1) | CN208501032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624738A (en) * | 2018-07-09 | 2018-10-09 | 鞍山市和丰耐火材料有限公司 | A kind of quincuncial pile formula converter bottom structure |
-
2018
- 2018-07-09 CN CN201821097556.7U patent/CN208501032U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624738A (en) * | 2018-07-09 | 2018-10-09 | 鞍山市和丰耐火材料有限公司 | A kind of quincuncial pile formula converter bottom structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190215 Effective date of abandoning: 20230707 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190215 Effective date of abandoning: 20230707 |