CN106636538B - The building method of converter bottom and molten bath position - Google Patents
The building method of converter bottom and molten bath position Download PDFInfo
- Publication number
- CN106636538B CN106636538B CN201611251431.0A CN201611251431A CN106636538B CN 106636538 B CN106636538 B CN 106636538B CN 201611251431 A CN201611251431 A CN 201611251431A CN 106636538 B CN106636538 B CN 106636538B
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- Prior art keywords
- converter
- molten bath
- brick
- top surface
- transitional
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/44—Refractory linings
- C21C5/441—Equipment used for making or repairing linings
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention belongs to converter refractory materials to protect field, more particularly to a kind of building method of converter bottom and molten bath position, it uses converter bottom and molten bath transitional brick, and build always from furnace bottom allows the central axes of converter bottom and molten bath transitional brick perpendicular to converter shell direction to molten bath；The transitional brick ontology (1) of the converter bottom and molten bath transitional brick is in hexahedron structure；The top surface (201) of the transitional brick ontology (1) is parallel with bottom surface (202)；The top surface (201) and bottom surface (202) are isosceles trapezoid；The area of the top surface (201) is less than bottom surface (202) area；The bottom edge of the top surface (201) and waist bottom edge corresponding with bottom surface (202) and waist are successively parallel.The present invention is easy to maintain, and corrosion resistance is strong, can increase the thickness of converter molten pool position brick, brick body is avoided gap occur.
Description
Technical field
The invention belongs to converter refractory material protection field more particularly to the masonry sides of a kind of converter bottom and molten bath position
Method.
Background technique
The consumption of steel-making refractory brick is very big, and directly affects service life and the smelting cost of converter.Converter
Working lining is directly contacted with high-temperature molten steel, slag, by the chemical erosion of high-temperature slag, is washed away by molten steel, slag and furnace gas, also
The effects of by mechanical impacts when adding steel scrap, working environment is very severe.In converting process, due to the operating condition at each position
Difference, deteriorate situation and the amount of deteriorating of liner are also different.For this situation, the difference of the damaged condition of backup lining brick is built
The refractory brick of unlike material or identical material different stage, here it is so-called integrated block heaters.It is easily damaged or is not easy the portion repaired
Position builds high-grade magnesia carbon brick;Damage is relatively light and is easy repairing position, can build middle-grade or low-grade magnesia carbon brick.
Shown in Figure 1, the masonry of traditional converter bottom and molten bath position returns flat brick and furnace bottom using flat brick masonry is returned
The position of brick contact is the inclined-plane for returning flat brick.The corrode of furnace bottom and the molten iron of the existing molten condition of molten bath position working environment, again
Gas, which will cause, when having the gouging abrasion that steel scrap is added, and blowing washes away.Bottom brick can be dropped because corroding in converter use process
Low clearance exposes bottom brick and returns the contact site of flat brick.The masonry direction difference for returning flat brick and bottom brick is easy to produce seam
Gap will increase the danger of furnace bottom position drill steel.
Summary of the invention
A kind of easy to maintain the present invention is directed to provide in place of overcome the deficiencies in the prior art, corrosion resistance is strong, can increase
The thickness for adding converter molten pool position brick avoids brick body from the converter bottom in gap and the building method at molten bath position occur.
In order to solve the above technical problems, the invention is realized in this way.
The building method of converter bottom and molten bath position, which is characterized in that using converter bottom and molten bath transitional brick, from furnace
Bottom is built always allows the central axes of converter bottom and molten bath transitional brick perpendicular to converter shell direction to molten bath.
As a preferred embodiment, the transitional brick ontology of converter bottom of the present invention and molten bath transitional brick is in hexahedron knot
Structure；The top surface of the transitional brick ontology is parallel with bottom surface；The top surface and bottom surface are isosceles trapezoid；The area of the top surface is small
In base area；The bottom edge of the top surface and waist bottom edge corresponding with bottom surface and waist are successively parallel.
Further, two bottom edge length of top surface of the present invention are as follows: 48mm≤A≤99.2mm；76.5mm≤B≤
100.7mm；Two bottom edge length of the bottom surface (202) are as follows: 52.5mm≤C≤129.2mm；83.5mm≤D≤130.6mm.
Further, the height of transitional brick ontology of the present invention are as follows: 850mm≤L≤1000mm.
The present invention uses new brick, builds the magnesium for making the transitional region of bottom brick and molten bath brick to molten bath always from furnace bottom
Carbon brick can be perpendicular to converter shell direction.It is increased again in the case where not influencing the molten steel page height of smelting process requirement
The thickness of molten bath position brick, while avoiding and lead to the danger of drill steel using returning flat brick and be easy to appear gap.Increase furnace bottom with
The corrosion resistance of molten bath intermediate location makes furnace bottom reach synchronous with the erosion rate at molten bath position, is the later period of converter lining
Maintenance provides convenience.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and specific embodiments.Protection scope of the present invention not only office
It is limited to the statement of following content.
Fig. 1 is existing converter fire resisting brick masonry schematic diagram.
Fig. 2 is the overall structure diagram of converter bottom of the present invention and molten bath transitional brick.
Fig. 3 is the main view of converter bottom of the present invention and molten bath transitional brick.
Fig. 4 is the top view of converter bottom of the present invention and molten bath transitional brick.
Fig. 5 is converter bottom of the present invention and molten bath transitional brick assembling schematic diagram.
In figure: 1, transitional brick ontology；201, top surface；202, bottom surface；3, furnace bottom；4, molten bath；5, shaft；6, flat brick is returned；7,
Furnace shell.
Specific embodiment
As shown in Figure 2-5, the building method of converter bottom and molten bath position, using converter bottom and molten bath transitional brick, from
Furnace bottom is built always allows the central axes of converter bottom and molten bath transitional brick perpendicular to converter shell direction to molten bath.
The transitional brick ontology 1 of above-mentioned converter bottom and molten bath transitional brick is in hexahedron structure；The top of the transitional brick ontology 1
Face 201 is parallel with bottom surface 202；The top surface 201 and bottom surface 202 are isosceles trapezoid；The area of the top surface 201 is less than bottom surface
202 areas；The bottom edge of the top surface 201 and waist and the corresponding bottom edge in bottom surface 202 and waist are successively parallel.
Two bottom edge length of top surface 201 of the present invention are as follows: 48mm≤A≤99.2mm；76.5mm≤B≤100.7mm；Institute
State two bottom edge length of bottom surface 202 are as follows: 52.5mm≤C≤129.2mm；83.5mm≤D≤130.6mm.Transition of the present invention
The height of brick ontology 1 are as follows: 850mm≤L≤1000mm.
The present invention can build always the transitional region for making bottom brick and molten bath brick to molten bath in actually masonry operation from furnace bottom
Magnesia carbon brick can be perpendicular to converter shell direction.Increase again in the case where not influencing the molten steel page height of smelting process requirement
The thickness of molten bath position brick is added, while having avoided and lead to the danger of drill steel using returning flat brick and be easy to appear gap.Increase furnace
The corrosion resistance at bottom and molten bath intermediate location makes furnace bottom reach synchronous with the erosion rate at molten bath position, is converter lining
Later maintenance provides convenience.
It is to be understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments, those skilled in the art should understand that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (2)
1. the building method of converter bottom and molten bath position, which is characterized in that using converter bottom and molten bath transitional brick, from furnace bottom
It builds always and arrives molten bath, allow the central axes of converter bottom and molten bath transitional brick perpendicular to converter shell direction；The Converter
The transitional brick ontology (1) of bottom and molten bath transitional brick is in hexahedron structure；The top surface (201) and bottom surface of the transitional brick ontology (1)
(202) parallel；The top surface (201) and bottom surface (202) are isosceles trapezoid；The area of the top surface (201) is less than bottom surface
(202) area；The bottom edge of the top surface (201) and waist bottom edge corresponding with bottom surface (202) and waist are successively parallel；The top surface
(201) two bottom edge length are as follows: 48mm≤A≤99.2mm；76.5mm≤B≤100.7mm；Two bottom edges of the bottom surface (202)
Length are as follows: 52.5mm≤C≤129.2mm；83.5mm≤D≤130.6mm.
2. the building method of converter bottom according to claim 1 and molten bath position, it is characterised in that: the transitional brick sheet
The height of body (1) are as follows: 850mm≤L≤1000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611251431.0A CN106636538B (en) | 2016-12-30 | 2016-12-30 | The building method of converter bottom and molten bath position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611251431.0A CN106636538B (en) | 2016-12-30 | 2016-12-30 | The building method of converter bottom and molten bath position |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106636538A CN106636538A (en) | 2017-05-10 |
| CN106636538B true CN106636538B (en) | 2019-01-04 |
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ID=58836308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611251431.0A Active CN106636538B (en) | 2016-12-30 | 2016-12-30 | The building method of converter bottom and molten bath position |
Country Status (1)
| Country | Link |
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| CN (1) | CN106636538B (en) |
Families Citing this family (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 |
| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613781B (en) * | 2009-07-24 | 2011-02-16 | 莱芜钢铁股份有限公司 | Bottom-blown air brick of top and bottom repeatedly blown converter and installing structure thereof |
| CN102719592A (en) * | 2011-03-30 | 2012-10-10 | 鞍钢股份有限公司 | Method for bricklaying furnace lining of large converter |
| CN105603149A (en) * | 2016-03-16 | 2016-05-25 | 山东钢铁股份有限公司 | Converter lining structure |
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2016
- 2016-12-30 CN CN201611251431.0A patent/CN106636538B/en active Active
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| Publication number | Publication date |
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| CN106636538A (en) | 2017-05-10 |
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