CN203159659U - Converter bottom structure with less possibility of steel penetration accident - Google Patents
Converter bottom structure with less possibility of steel penetration accident Download PDFInfo
- Publication number
- CN203159659U CN203159659U CN 201320108847 CN201320108847U CN203159659U CN 203159659 U CN203159659 U CN 203159659U CN 201320108847 CN201320108847 CN 201320108847 CN 201320108847 U CN201320108847 U CN 201320108847U CN 203159659 U CN203159659 U CN 203159659U
- Authority
- CN
- China
- Prior art keywords
- converter
- shell
- horizontal
- flame retardant
- retardant coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 18
- 239000010959 steel Substances 0.000 title claims abstract description 18
- 230000035515 penetration Effects 0.000 title abstract 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 36
- 239000011449 brick Substances 0.000 claims description 20
- 239000000395 magnesium oxide Substances 0.000 claims description 18
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 16
- 239000003063 flame retardant Substances 0.000 claims description 16
- 238000010276 construction Methods 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 230000009970 fire resistant effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 238000003723 Smelting Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000000717 retained effect Effects 0.000 abstract 1
- 206010000372 Accident at work Diseases 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 241001411320 Eriogonum inflatum Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model discloses a converter bottom structure with less possibility of a steel penetration accident, and belongs to the technical field of converter equipment for preventing the steel penetration accident at the bottom of a converter. According to the technical scheme, the bottom of the converter is a horizontal bottom; the horizontal converter bottom consists of a fireproof layer and a shell, wherein the fireproof layer is a cylinder and is positioned in the center of the horizontal converter bottom; the lower end of the fireproof layer is connected with the shell of the horizontal converter bottom; the shell is connected with a converter body through connection flanges; the cylinder of the fireproof layer is embedded into a conical section at the lower part of the converter body; perpendicular annular slits are reserved between the periphery of the fireproof cylinder and the inner wall of the conical section at the lower part of the converter body; and ramming materials are filled in the annular slits. According to the utility model, the conical section of an original converter bottom is retained on the converter body, and only the bottommost horizontal converter bottom is made into a movable part which is independently built; and refractory joints of linings at the connected parts are used as the perpendicular annular slits. The original thin part of the converter is not built at a joint between the converter body and the converter bottom, so that converter form control in a smelting process is facilitated; the difficulty of steel penetration into the converter bottom in the later stage of converter service of the converter is solved; and the production accidents are reduced.
Description
Technical field
The utility model relates to a kind of bottom construction of steel-making converter, belongs to the converter installation technical field.
Background technology
Essemer converter is made up of furnace bottom, shaft, three parts of furnace crown, and the converter current shell is divided into one-piece construction and two kinds of forms of split-type structural basically.One-piece construction is that furnace bottom, shaft, furnace crown shell are one, and the inside lining building magnesia carbon brick is as working lining.This kind converter structure globality is better, and use is safe and reliable, and the converter of newly-built converter steelmaking factory is the monoblock type converter.Must use when but the liner working lining is built by laying in the converter of this kind form and repair the stove tower, carry refractory materials in from the converter top to stove, it is very big to take upper space, and it is longer to repair the stove time, does not have condition to satisfy the above-mentioned stove requirement of repairing for some ageing steel mills and middle-size and small-size converter steel factory.Split-type structural is that shaft, furnace crown shell are one, and at the bottom of furnace bottom was travelling oven, two portions shell was connected in one by flange.The handiness of this kind converter structure is better, and two parts were taken apart when the liner working lining was built by laying in converter, built by laying bricks or stones respectively.Shaft, when building working lining by laying bricks or stones, the furnace crown position carry refractory materials to get final product from the bottom, can build by laying on ground simultaneously at the bottom of the travelling oven, treating that two portions are built by laying to finish to dock with flange links together two portions shell, and the liner seam crossing of anti-the material is filled with ramming mass and got final product.But there is following defective in this converter structure: the one, and two portions seam crossing of anti-the material forms an annulus, and the annulus is positioned at the straight type section of shaft and tapered section junction of furnace bottom, is the vulnerable area of converter; The 2nd, the annulus is narrower, and seam crossing ramming mass tamping degree is under some influence, and in use safeguards improper steel, the runout accident of wearing that cause easily.Therefore, in order to solve the difficult problem that converter stove labour later stage furnace bottom is worn steel, reduce industrial accident, be necessary the bottom construction of split type converter is improved.
The utility model content
Technical problem to be solved in the utility model provides a kind of difficult converter bottom construction of wearing the steel accident, this bottom construction can avoid the annulus of existing shaft and furnace bottom junction to wear the defective of accidents such as steel, runout easily, guarantees carrying out smoothly of production.
The technical scheme that solves the problems of the technologies described above is:
A kind of difficult converter bottom construction of wearing the steel accident, at the bottom of its furnace bottom is horizontal stove, formed by flame retardant coating and shell at the bottom of the horizontal stove, flame retardant coating is right cylinder, is positioned at the central authorities at the bottom of the horizontal stove, and the flame retardant coating lower end connects shell at the bottom of the horizontal stove, shell is connected by joint flange with shaft, in tapered section of the right cylinder embedding restoration of lower stack of flame retardant coating, fire-resistant cylindrical periphery has vertical annulus with tapered section inwall of restoration of lower stack, fills ramming mass in the annulus.
Above-mentioned difficult converter bottom construction of wearing the steel accident, the width of described annulus is 70-100mm.
Above-mentioned difficult converter bottom construction of wearing the steel accident, described flame retardant coating is made up of magnesia brick and magnesia carbon brick, and magnesia brick is connected with shell, and magnesia carbon brick is on the top of magnesia brick.
The beneficial effects of the utility model are:
The utility model improves at original travelling oven base plinth, tapered section of original furnace bottom stayed on the shaft, only build by laying separately making moving part at the bottom of the bottommost horizontal stove, be connected with revolving furnace body again, connecting portion also becomes converter bottommost horizontal position by the straight type section of shaft and tapered section junction of furnace bottom, the anti-material seam of the liner of junction becomes vertical annulus by the horizontal annular slit, wavelength width of a slit is increased to 70-100mm by 20mm, is conducive to seam crossing ramming mass tamping degree.This improved structure makes the seam crossing of shaft and furnace bottom avoid the original weak part of converter, is more conducive to the control of the smelting process type of furnace, has solved the difficult problem that converter stove labour later stage furnace bottom is worn steel, has reduced industrial accident.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Mark is as follows among the figure: shaft 1, flame retardant coating 2, shell 3, annulus 4, joint flange 5, bolt 6, magnesia brick 7, magnesia carbon brick 8.
Embodiment
Show among the figure that the utility model improves at original travelling oven base plinth, tapered section has been stayed on the shaft 1, build by laying separately as moving part at the bottom of the horizontal stove with the furnace bottom bottommost, be connected with the shaft 1 of converter again.
Show among the figure, formed by shell 3 and flame retardant coating 2 at the bottom of the horizontal stove.Flame retardant coating 2 is right cylinder, is positioned at the central authorities at the bottom of the horizontal stove, and flame retardant coating 2 lower ends connect shell 3 at the bottom of the horizontal stove, form a bottle stopper shape that makes progress, and shell 3 is connected by joint flange 5 with shaft 1.
Show among the figure that the right cylinder of flame retardant coating 2 embeds in tapered section of shaft 1 bottom, fire-resistant cylindrical periphery has vertical annulus 4 with tapered section inwall of shaft 1 bottom, fills ramming mass in the annulus 4.
Show among the figure that shaft 1 becomes vertical annulus 4 with the anti-material seam of liner of junction at the bottom of the horizontal stove by the horizontal annular slit, wavelength width of a slit is increased to 70-100mm by 20mm, is conducive to seam crossing ramming mass tamping degree.The width of the annulus 4 of an embodiment of the present utility model is 80mm.
Show among the figure that flame retardant coating 2 is made up of magnesia brick 7 and magnesia carbon brick 8, magnesia brick 7 is connected with shell 3, and magnesia carbon brick 8 is on the top of magnesia brick 7.
Claims (3)
1. converter bottom construction that is difficult for wearing the steel accident, it is characterized in that: at the bottom of its furnace bottom is horizontal stove, formed by flame retardant coating (2) and shell (3) at the bottom of the horizontal stove, flame retardant coating (2) is right cylinder, be positioned at the central authorities at the bottom of the horizontal stove, shell (3) at the bottom of flame retardant coating (2) the lower end connection horizontal stove, shell (3) is connected by joint flange (5) with shaft (1), in tapered section of right cylinder embedding shaft (1) bottom of flame retardant coating (2), fire-resistant cylindrical periphery has vertical annulus (4) with tapered section inwall of shaft (1) bottom, fills ramming mass in annulus (4).
2. difficult converter bottom construction of wearing the steel accident according to claim 1, it is characterized in that: the width of described annulus (4) is 70-100mm.
3. difficult converter bottom construction of wearing the steel accident according to claim 1 and 2, it is characterized in that: described flame retardant coating (2) is made up of magnesia brick (7) and magnesia carbon brick (8), magnesia brick (7) is connected with shell (3), and magnesia carbon brick (8) is on the top of magnesia brick (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320108847 CN203159659U (en) | 2013-03-11 | 2013-03-11 | Converter bottom structure with less possibility of steel penetration accident |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320108847 CN203159659U (en) | 2013-03-11 | 2013-03-11 | Converter bottom structure with less possibility of steel penetration accident |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203159659U true CN203159659U (en) | 2013-08-28 |
Family
ID=49020858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320108847 Expired - Lifetime CN203159659U (en) | 2013-03-11 | 2013-03-11 | Converter bottom structure with less possibility of steel penetration accident |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203159659U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103667584A (en) * | 2013-12-28 | 2014-03-26 | 武钢集团昆明钢铁股份有限公司 | Method for constructing long-lasting anti-corrosion maintenance-free joint between converter body and converter bottom and structure of joint |
| CN104404203A (en) * | 2014-11-13 | 2015-03-11 | 江苏永钢集团有限公司 | Small-sized converter |
| CN110849147A (en) * | 2019-11-28 | 2020-02-28 | 中冶京诚工程技术有限公司 | A furnace bottom structure of a regenerative push-steel heating furnace |
| CN111647712A (en) * | 2020-05-11 | 2020-09-11 | 首钢集团有限公司 | Converter with replaceable converter bottom and method for replacing converter bottom |
| CN113651601A (en) * | 2021-09-13 | 2021-11-16 | 济南鲁东耐火材料有限公司 | Converter with replaceable converter bottom and construction method for primary building |
| CN115125360A (en) * | 2022-06-10 | 2022-09-30 | 邯郸钢铁集团有限责任公司 | Method and device for early warning gas leakage of bottom oxygen blowing converter and bottom powder spraying converter |
-
2013
- 2013-03-11 CN CN 201320108847 patent/CN203159659U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103667584A (en) * | 2013-12-28 | 2014-03-26 | 武钢集团昆明钢铁股份有限公司 | Method for constructing long-lasting anti-corrosion maintenance-free joint between converter body and converter bottom and structure of joint |
| CN103667584B (en) * | 2013-12-28 | 2015-08-19 | 武钢集团昆明钢铁股份有限公司 | Non-maintaining converter body-the furnace bottom of a kind of Long-effect corrosion-resistant builds seam method and structure thereof |
| CN104404203A (en) * | 2014-11-13 | 2015-03-11 | 江苏永钢集团有限公司 | Small-sized converter |
| CN104404203B (en) * | 2014-11-13 | 2016-02-17 | 江苏永钢集团有限公司 | A kind of small vessel |
| CN110849147A (en) * | 2019-11-28 | 2020-02-28 | 中冶京诚工程技术有限公司 | A furnace bottom structure of a regenerative push-steel heating furnace |
| CN111647712A (en) * | 2020-05-11 | 2020-09-11 | 首钢集团有限公司 | Converter with replaceable converter bottom and method for replacing converter bottom |
| CN111647712B (en) * | 2020-05-11 | 2022-02-18 | 首钢集团有限公司 | Converter with replaceable converter bottom and method for replacing converter bottom |
| CN113651601A (en) * | 2021-09-13 | 2021-11-16 | 济南鲁东耐火材料有限公司 | Converter with replaceable converter bottom and construction method for primary building |
| CN115125360A (en) * | 2022-06-10 | 2022-09-30 | 邯郸钢铁集团有限责任公司 | Method and device for early warning gas leakage of bottom oxygen blowing converter and bottom powder spraying converter |
| CN115125360B (en) * | 2022-06-10 | 2024-01-12 | 邯郸钢铁集团有限责任公司 | Method and device for early warning gas leakage of bottom blowing oxygen and bottom powder injection converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063016 Binhe Road, Hebei, Tangshan City, No. 9 Patentee after: HBIS COMPANY LIMITED TANGSHAN BRANCH Address before: 063016 Binhe Road, Hebei, Tangshan City, No. 9 Patentee before: Tangshan Branch of Hebei Iron & Steel Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
|
| CX01 | Expiry of patent term |