JPS5741309A - Refining vessel having gas blowing tuyere - Google Patents
Refining vessel having gas blowing tuyereInfo
- Publication number
- JPS5741309A JPS5741309A JP55118062A JP11806280A JPS5741309A JP S5741309 A JPS5741309 A JP S5741309A JP 55118062 A JP55118062 A JP 55118062A JP 11806280 A JP11806280 A JP 11806280A JP S5741309 A JPS5741309 A JP S5741309A
- Authority
- JP
- Japan
- Prior art keywords
- mgo
- bricks
- mixture
- refining vessel
- gas blowing
- 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.)
- Granted
Links
- 238000007670 refining Methods 0.000 title abstract 4
- 238000007664 blowing Methods 0.000 title abstract 3
- 239000011449 brick Substances 0.000 abstract 6
- 239000000203 mixture Substances 0.000 abstract 4
- 239000011230 binding agent Substances 0.000 abstract 3
- 238000000465 moulding Methods 0.000 abstract 3
- 230000007797 corrosion Effects 0.000 abstract 2
- 238000005260 corrosion Methods 0.000 abstract 2
- 239000002994 raw material Substances 0.000 abstract 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000003628 erosive effect Effects 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000005011 phenolic resin Substances 0.000 abstract 1
- 229920001568 phenolic resin Polymers 0.000 abstract 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
PURPOSE:To provide a titled refining vessel of considerably improved corrosion resistance of lining bricks by using the MgO-C bricks made by adding an org. binder to a mixture of prescribed ratios of MgO and C and molding the mixture then calcining the molding in a specific temp. range for the circumference of a gas blowing tuyere. CONSTITUTION:An MgO raw material such as sintered MgO of >=95% content of MgO and a C raw material such as flake graphite of >=80% content of C are mixed at ratios of 90-70% MgO and 10-30% C. Next, an org. binder such as phenolic resin is added and mixed to this mixture, and the mixture is kneaded and molded, after which the molding is calcined in a 900-1,450 deg.C temp. range in an atmosphere of not oxidizing C, until the binder is carbonized. Thence, the resultant MgO-C bricks are used around the gas blowing tuyere of a refining vessel. As a result, unlike with conventional uncalcined MgO-C bricks, the occurrence of creep deformation is obviated, and the joint erosion between lining bricks is less; hence, the effect of considerably improving the corrosion resistance of the lining bricks, considerably extending the continuous operation period of the refining vessel, etc. is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55118062A JPS609563B2 (en) | 1980-08-27 | 1980-08-27 | Refining vessel with gas blowing tuyere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55118062A JPS609563B2 (en) | 1980-08-27 | 1980-08-27 | Refining vessel with gas blowing tuyere |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5741309A true JPS5741309A (en) | 1982-03-08 |
| JPS609563B2 JPS609563B2 (en) | 1985-03-11 |
Family
ID=14727062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55118062A Expired JPS609563B2 (en) | 1980-08-27 | 1980-08-27 | Refining vessel with gas blowing tuyere |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609563B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040049585A (en) * | 2002-12-06 | 2004-06-12 | 주식회사 포스렉 | A unburned Magnesia-Carbon brick having excellent thermal shock resistance |
| JP2017144460A (en) * | 2016-02-17 | 2017-08-24 | Ｊｆｅスチール株式会社 | Method of manufacturing refractory for gas blowing nozzle |
-
1980
- 1980-08-27 JP JP55118062A patent/JPS609563B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040049585A (en) * | 2002-12-06 | 2004-06-12 | 주식회사 포스렉 | A unburned Magnesia-Carbon brick having excellent thermal shock resistance |
| JP2017144460A (en) * | 2016-02-17 | 2017-08-24 | Ｊｆｅスチール株式会社 | Method of manufacturing refractory for gas blowing nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS609563B2 (en) | 1985-03-11 |
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