CN1523120A - Waterless stemming for blast furnace - Google Patents
Waterless stemming for blast furnace Download PDFInfo
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- CN1523120A CN1523120A CNA03117339XA CN03117339A CN1523120A CN 1523120 A CN1523120 A CN 1523120A CN A03117339X A CNA03117339X A CN A03117339XA CN 03117339 A CN03117339 A CN 03117339A CN 1523120 A CN1523120 A CN 1523120A
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- particle diameter
- blast furnace
- stone
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- corundum
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Abstract
The present invention provides an anhydrous stemming for blast furnace. Its composition includes (wt%) coarse brown corundun 1-4%, fine brown corundum 2-5%, coarse mullite 7-15%, fine mullite 9-20%, coke powder 15-20%, clay 10-19%, silicon carbide 7-11%, sericite 5-8%, bitumen 2-4% and anthracene oil 15-25%. It has good working property, stable high temperature resistance, excellent caking property, quick agglutinating property, low ton-iron stemming consumption, low contraction rate and high strength, it can raise tap up-to-standard rate to 100% from original 61.5%, can raise production safety of blast furnace, and can raise smelting strength.
Description
Technical field
The present invention relates to a kind of blast furnace stemming, especially a kind of stemming that is used to block blast furnace taphole in iron manufacturing process belongs to metallurgical technology field.
Background technology
The stemming that is used to block the iron mouth of blast furnace at present mainly is a hydrous taphole loam, and it is formed by mixing such as carbon materials, refractory aggregate and the raw clay system of grinding.Because raw materials used relatively poor, batching and particle grade are unreasonable, there is following deficiency in the stemming that stone roller is made: iron mouth tide, the splash of the whole process of tapping a blast furnace slag iron; Stemming intensity difference, mud drum are difficult to safeguard that the iron mouth degree of depth is little, the mud drum fracture easily takes place in the shallow or process of tapping a blast furnace of fire door and cause " running stream greatly ", and the molten iron roughing runner explodes big gun, and iron ladle such as overflows at dangerous situation.In addition because blast furnace taphole zone and cupola well adopt carbonaceous material to build by laying bricks or stones mostly, moisture content in the hydrous taphole loam under hot conditions with carbon brick generation chemical reaction, thereby aggravate the erosion of cupola well iron port area, influence the work-ing life of blast furnace, do not satisfy higher combustion intensity.Therefore, be necessary prior art is improved.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of have better operation, coking property, wear resistance, abrasion resistance and easily perforate, volume stability, free of contamination anhydrous stemming are provided, to satisfy the needs of blast furnace strengthening smelting, prolong the stove longevity, enhance productivity.
Anhydrous stemming provided by the invention is made by following raw materials by weight percent:
Thick brown corundum 1-4%
Thin brown corundum 2-5%
Just stone 7-15% not slightly
Just stone 9-20% not carefully
Coke powder 15-20%
Clay 10-19%
Silicon carbide 7-11%
Sericite 5-8%
Pitch 2-4%
Carbolineum 15-25%.
The particle diameter of described thick brown corundum is 1-3mm, and the particle diameter of thin brown corundum is 0-1mm.
The described thick firm not particle diameter of stone is 1-3mm, and the thin firm not particle diameter of stone is 0-0.5mm.
The particle diameter of described clay is 0-0.9mm, and the particle diameter of sericite is 0-0.08mm, and the particle diameter of silicon carbide is 0-1mm, and the particle diameter of coke powder is 0-1mm.
The present invention adopts following processing method to make:
Raw material is mixed in the following order: coke powder → thick corundum → thin corundum → slightly is the just stone → silicon carbide → clay → pitch → carbolineum not of stone → carefully not just; And in temperature is 40-60 ℃ of scope hot mixed grind 30-50 minute, the plastics bag of packing into is deposited more than 24 hours and can be used.
Stemming provided by the invention has following advantage and effect:
1, good working performance.From clay gun, extrude easily, and have higher tamped density, both just deposited certain hour after, can not influence its transaction capabilities yet.
2, sintering character fast.Strong adhesion in the hole of tapping a blast furnace, stable can form sintering in the short period of time and moves back big gun, and shrinking percentage is low, intensity is high.
3, stable resistance to elevated temperatures.Have under the high temperature good wear-resistantly, anti-wash away, the iron of anti-the slag corrodes, and makes iron mouth qualification rate bring up to 100% by original 61.5%.
4, ton iron mud consumption amount is low.The mud consumption amount of iron per ton is 0.6 kilogram, can effectively reduce production costs.
5, superior adhesive property.The cohesiveness of new and old stemming is good, and Serious Accidents such as oozing iron phenomenon, the fracture of iron mouth, the big stream of race is reduced as far as possible, and improves the blast furnace production safety, reduces production costs, and improves combustion intensity.
Embodiment
Embodiment 1
1, take by weighing raw material by following proportioning:
1 kilogram in the thick brown corundum of particle diameter 1-3mm
5 kilograms in the thin brown corundum of particle diameter 0-1mm
Slightly just 14 kilograms in the stone not of particle diameter 1-3mm
Particle diameter 0-0.5mm is just 9 kilograms in stone not carefully
Particle diameter is 15 kilograms of the coke powders of 0-1mm
Particle diameter is 17 kilograms of the clays of 0-0.9mm
Particle diameter is 7 kilograms in the silicon carbide of 0-1mm
Particle diameter is 8 kilograms of the sericites of 0-0.08mm
2 kilograms of pitches
23 kilograms of carbolineums
2, raw material is put in the following order:
Coke powder → thick corundum → thin corundum → slightly is the just stone → silicon carbide → clay → pitch → carbolineum not of stone → carefully not just;
3, in temperature is 40-60 ℃ of scope hot mixed grind 30-50 minute, 100 kilograms of anhydrous stemmings, the plastics bag of packing into is deposited more than 24 hours and can be used.
Embodiment 2
1, take by weighing raw material by following proportioning:
4 kilograms in the thick brown corundum of particle diameter 1-3mm
2 kilograms in the thin brown corundum of particle diameter 0-1mm
Slightly just 7 kilograms in the stone not of particle diameter 1-3mm
Particle diameter 0-0.5mm is just 20 kilograms in stone not carefully
Particle diameter is 20 kilograms of the coke powders of 0-1mm
Particle diameter is 12 kilograms of the clays of 0-0.9mm
Particle diameter is 11 kilograms in the silicon carbide of 0-1mm
Particle diameter is 5 kilograms of the sericites of 0-0.08mm
4 kilograms of pitches
15 kilograms of carbolineums
2, raw material is put in the following order:
Coke powder → thick corundum → thin corundum → slightly is the just stone → silicon carbide → clay → pitch → carbolineum not of stone → carefully not just;
3, in temperature is 40-60 ℃ of scope hot mixed grind 30-50 minute, 100 kilograms of anhydrous stemmings, the plastics bag of packing into is deposited more than 24 hours and can be used.
Embodiment 3
1, take by weighing raw material by following proportioning:
2 kilograms in the thick brown corundum of particle diameter 1-3mm
3 kilograms in the thin brown corundum of particle diameter 0-1mm
Slightly just 10 kilograms in the stone not of particle diameter 1-3mm
Particle diameter 0-0.5mm is just 15 kilograms in stone not carefully
Particle diameter is 18 kilograms of the coke powders of 0-1mm
Particle diameter is 15 kilograms of the clays of 0-0.9mm
Particle diameter is 9 kilograms in the silicon carbide of 0-1mm
Particle diameter is 6 kilograms of the sericites of 0-0.08mm
3 kilograms of pitches
19 kilograms of carbolineums
2, raw material is put in the following order:
Coke powder → thick corundum → thin corundum → slightly is the just stone → silicon carbide → clay → pitch → carbolineum not of stone → carefully not just;
3, in temperature is 40-60 ℃ of scope hot mixed grind 30-50 minute, 100 kilograms of anhydrous stemmings, the plastics bag of packing into is deposited more than 24 hours and can be used.
Claims (5)
1, a kind of anhydrous stemming for blast furnace is characterized in that it is made by following raw materials by weight percent:
Thick brown corundum 1-4%
Thin brown corundum 2-5%
Just stone 7-15% not slightly
Just stone 9-20% not carefully
Coke powder 15-20%
Clay 10-19%
Silicon carbide 7-11%
Sericite 5-8%
Pitch 2-4%
Carbolineum 15-25%.
2, anhydrous stemming for blast furnace according to claim 1, the particle diameter that it is characterized in that described thick brown corundum is 1-3mm, the particle diameter of thin brown corundum is 0-1mm.
3, anhydrous stemming for blast furnace according to claim 1 is characterized in that the described thick firm not particle diameter of stone is 1-3mm, and the thin firm not particle diameter of stone is 0-0.5mm.
4, anhydrous stemming for blast furnace according to claim 1, the particle diameter that it is characterized in that described clay is 0-0.9mm, and the particle diameter of sericite is 0-0.08mm, and the particle diameter of silicon carbide is 0-1mm, and the particle diameter of coke powder is 0-1mm.
5, anhydrous stemming for blast furnace according to claim 1 is characterized in that it adopts following processing method to make: raw material is mixed in the following order: coke powder → thick corundum → thin corundum → slightly is the just stone → silicon carbide → clay → pitch → carbolineum not of stone → carefully not just; And in temperature is 40-60 ℃ of scope hot mixed grind 30-50 minute, the plastics bag of packing into is deposited more than 24 hours and can be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03117339 CN1228455C (en) | 2003-02-21 | 2003-02-21 | Waterless stemming for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03117339 CN1228455C (en) | 2003-02-21 | 2003-02-21 | Waterless stemming for blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1523120A true CN1523120A (en) | 2004-08-25 |
| CN1228455C CN1228455C (en) | 2005-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03117339 Expired - Fee Related CN1228455C (en) | 2003-02-21 | 2003-02-21 | Waterless stemming for blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1228455C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300341C (en) * | 2005-07-19 | 2007-02-14 | 中国地质大学（北京） | Tamping plug for blast furnace spout and its preparation method |
| CN100453509C (en) * | 2006-02-24 | 2009-01-21 | 河北理工大学 | No-water stemming material for blast furnace taphole and its prepn |
| CN101857445A (en) * | 2010-05-21 | 2010-10-13 | 河南华西耐火材料有限公司 | Anhydrous stemming for blast furnace |
| CN101913890A (en) * | 2010-08-31 | 2010-12-15 | 通化耐博耐火材料有限责任公司 | Tap hole clay for recycled material high blast furnace and preparation method thereof |
| CN101967062A (en) * | 2010-08-25 | 2011-02-09 | 湖南湘钢宜兴耐火材料有限公司 | Anhydrous stemming for blast-furnace tapping hole |
| CN102320852A (en) * | 2011-09-07 | 2012-01-18 | 鞍钢实业铁缘耐火材料有限责任公司 | Furnace-protecting anhydrous stemming |
| CN101528635B (en) * | 2006-10-20 | 2012-05-30 | 黑崎播磨株式会社 | Mud material |
| CN102951909A (en) * | 2011-08-24 | 2013-03-06 | 中冶建筑研究总院有限公司 | Anhydrous stemming and preparation method thereof |
| CN110451945A (en) * | 2019-07-26 | 2019-11-15 | 马鞍山盛平新材料科技有限公司 | A kind of mud without blister and preparation method thereof |
| CN111233499A (en) * | 2020-03-12 | 2020-06-05 | 巩义市芙豪冶金材料有限公司 | SiC/C homogeneous material, stemming and preparation method thereof |
-
2003
- 2003-02-21 CN CN 03117339 patent/CN1228455C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300341C (en) * | 2005-07-19 | 2007-02-14 | 中国地质大学（北京） | Tamping plug for blast furnace spout and its preparation method |
| CN100453509C (en) * | 2006-02-24 | 2009-01-21 | 河北理工大学 | No-water stemming material for blast furnace taphole and its prepn |
| CN101528635B (en) * | 2006-10-20 | 2012-05-30 | 黑崎播磨株式会社 | Mud material |
| CN101857445A (en) * | 2010-05-21 | 2010-10-13 | 河南华西耐火材料有限公司 | Anhydrous stemming for blast furnace |
| CN101967062A (en) * | 2010-08-25 | 2011-02-09 | 湖南湘钢宜兴耐火材料有限公司 | Anhydrous stemming for blast-furnace tapping hole |
| CN101913890A (en) * | 2010-08-31 | 2010-12-15 | 通化耐博耐火材料有限责任公司 | Tap hole clay for recycled material high blast furnace and preparation method thereof |
| CN102951909A (en) * | 2011-08-24 | 2013-03-06 | 中冶建筑研究总院有限公司 | Anhydrous stemming and preparation method thereof |
| CN102951909B (en) * | 2011-08-24 | 2015-10-07 | 中冶建筑研究总院有限公司 | A kind of anhydrous stemming and preparation method thereof |
| CN102320852A (en) * | 2011-09-07 | 2012-01-18 | 鞍钢实业铁缘耐火材料有限责任公司 | Furnace-protecting anhydrous stemming |
| CN110451945A (en) * | 2019-07-26 | 2019-11-15 | 马鞍山盛平新材料科技有限公司 | A kind of mud without blister and preparation method thereof |
| CN111233499A (en) * | 2020-03-12 | 2020-06-05 | 巩义市芙豪冶金材料有限公司 | SiC/C homogeneous material, stemming and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1228455C (en) | 2005-11-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ASS | Succession or assignment of patent right |
Owner name: KUNMING IRON & STEEL CO., LTD. Free format text: FORMER OWNER: IRON SMELTING PLANT, KUNMING IRON AND STEEL GROUP CO LTD Effective date: 20040716 |
|
| C06 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20040716 Address after: Yunnan city of Kunming province Anning Kunming Lang Chuang Applicant after: Kunming Steels Co., Ltd. Address before: Yunnan city of Kunming province Anning Kunming Lang Chuang Applicant before: Iron Making Factory, Kunming Iron & Steel (Group) Co., Ltd. |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051123 Termination date: 20160221 |