CN102180681B - Blast furnace taphole filled aluminum stemming and preparation method thereof - Google Patents
Blast furnace taphole filled aluminum stemming and preparation method thereof Download PDFInfo
- Publication number
- CN102180681B CN102180681B CN 201110054146 CN201110054146A CN102180681B CN 102180681 B CN102180681 B CN 102180681B CN 201110054146 CN201110054146 CN 201110054146 CN 201110054146 A CN201110054146 A CN 201110054146A CN 102180681 B CN102180681 B CN 102180681B
- Authority
- CN
- China
- Prior art keywords
- powder
- mass percent
- stemming
- blast furnace
- corundum
- 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.)
- Active
Links
Landscapes
- Ceramic Products (AREA)
Abstract
The invention relates to blast furnace taphole filled aluminum stemming and a preparation method thereof and belongs to the field of high-temperature metallurgical fireproof materials. The preparation method comprises the following steps of: premixing 40 to 50 mass percent of corundum, 12 to 30 mass percent of silicon carbide, 3 to 5 mass percent of micropowder, 8 to 12 mass percent of ball clay, 1 to 3 mass percent of plasticizer, 2 to 4 mass percent of graphite, 3 to 5 mass percent of expanding agent aluminium silicate, 3 to 5 mass percent of metal powder, 3 to 5 mass percent of titanium corundum and 3 to 5 mass percent of modified asphalt powder for later use; adding the mixture into a wheel roller, and pre-rolling for 5 minutes; adding 15 to 20 mass percent of modified liquid tar; performing high-speed wheel rolling for 30 to 35 minutes, so that the Marshall value is 4 to 16 MPa; and measuring the Marshall value again after 3 days, wherein if the Marshall value is 8 to 24 MPa, the product is qualified. By the blast furnace taphole filled aluminum stemming and the preparation method thereof, problems of low high-temperature strength, low high-temperature toughness and environmental pollution of the stemming are solved; and problems of shallow iron notch, broken iron notch and spattering are solved at the same time.
Description
Technical field
A kind of blast furnace taphole filled aluminum stemming of the present invention and preparation method thereof belongs to the pyrometallurgy fire resisting material field.
Background technology
The anhydrous stemming of present domestic use is to use coal tar, pitch to make wedding agent mostly, and the tar remaining carbon belongs to the combination of homogeneous fragility at 20-30, and bonding strength is low, and the high temperature cataclysm is ruptured easily; And benzo castor content is up to 10000～13000ppm(carcinogenic substance), opening taps a blast furnace the dense black smoke disperse of process at whole casting house, and human body is produced greatly harm, does not meet environmental emission reduction; Disconnected iron mouth, splash, iron mouth difficulty often occur and the phenomenon such as open, have a strong impact on blast furnace campaign, restricted that blast furnace is efficient, stable, direct motion; Simultaneously, the stemming ton consumes up to 1.2-1.5kg/t, and labour intensity is large, and production cost is high.
Summary of the invention
For the problem that exists in the production status of China numerous stemming producer and the stemming use procedure, the present invention introduces high-carbon wedding agent modified liquid tar T60 and modified asphalt powder CP, it is poor to have solved China's stemming hot strength, and high temperature toughness is bad, problem of environmental pollution and wearing quality, economy problems.
A kind of blast furnace taphole filled aluminum stemming of the present invention and preparation method thereof, particular content is as follows:
A kind of blast furnace taphole filled aluminum stemming adds modified liquid tar by powder and forms, and wherein each component is by mass percentage in the powder: corundum 40～50%, silicon carbide 12～30%, micro mist 3～5%, ball clay 8～12%, softening agent 1～3%, graphite 2～4%, swelling agent pure aluminium silicate 3～5%,, metal powder 3～5%, titanium corundum 3-5%, modified asphalt powder 3～5%; Modified liquid quality of coke tar per-cent is 15～20%.
A kind of preparation method of blast furnace taphole filled aluminum stemming carries out in accordance with the following steps:
(1) with mass percent is 40～50% corundum, 12～30% silicon carbide, 3～5% micro mist, 8～12% ball clay, 1～3% softening agent, 2～4% graphite, 3～5% swelling agent pure aluminium silicate, 3～5% metal powder, the titanium corundum of 3-5%, 3～5% modified asphalt powder, the fine powder material premix is for subsequent use, the critical granularity of above-mentioned fine powder is 3mm, and the bone meal ratio is: 50:50;
(2) aggregate for subsequent use, powder are dropped into crushing mill and roll in advance 5min, add mass ratio again and be 15～20% modified liquid tar, then high-speed wheel is rolled over 30～35min, make horse summer value be 4-16MPa, the packing that takes the dish out of the pot is surveyed horse summer value again after 3 days, horse summer value is namely qualified for 8-24MPa.
The preparation method of above-mentioned a kind of blast furnace taphole filled aluminum stemming is characterized in that described ball clay, silicon carbide must dry, and moisture content is less than 0.5%.
The blast furnace taphole filled aluminum stemming for preparing according to the method described above, its physico-chemical property is as shown in the table:
Table 1: the physico-chemical property of blast furnace taphole filled aluminum stemming
A kind of blast furnace taphole filled aluminum stemming of the present invention and preparation method thereof utilizes cheaper raw material, introduce high-carbon wedding agent modified liquid tar T60 and modifying asphalt resin-oatmeal CP, it is poor to have solved China's stemming hot strength, and high temperature toughness is bad, problem of environmental pollution and wearing quality, economy problems; The present invention utilizes the ultra micron technology, adds special mineralizer, has solved that high volume is stable, moderate, the easy opening of plasticity, the optimum stemming of long iron interruption-forming, the protection furnace wall, suppresses circulation, raising blast furnace problem in work-ing life; The present invention has selected has special expansile pure aluminium silicate swelling agent K, has thoroughly solved stemming and has stood frightened the splitting that temperature shock causes, has remedied contraction, crackle that the particulate raw material produces in contraction process, has solved shallow iron mouth, disconnected iron mouth, splash problem.
Embodiment
Below in conjunction with embodiment, a kind of high outlet of still iron filling aluminum matter stemming of the present invention and preparation method thereof is elaborated.
The used ball clay of the present invention is common commercial ball clay, wherein Al
2O
3Mass percent reaches 31-33% and gets final product, the used modified asphalt powder of the present invention is the CARBORES P type modified asphalt powder that German Ke Fulai company produces, the CARBORES T60 type liquid modifying tar that the used liquid modifying tar Germany Ke Fulai company of the present invention produces.
Embodiment 1
According to packet header blast furnace 2200m
3High furnace parameters is pressed standard formula preparation aluminium matter stemming, adds modified liquid tar by powder and forms, and wherein each component is by mass percentage in the powder: corundum 40%, silicon carbide 30%, Al
2O
3Micro mist 4%, ball clay 8%, softening agent 2%, graphite 2%, swelling agent pure aluminium silicate 4%,, metallic silicon power 3%, titanium corundum 4%, modified asphalt powder 3%; Modified liquid quality of coke tar per-cent is 15%
Prepare in accordance with the following steps a kind of blast furnace taphole filled aluminum stemming: be 40% corundum with mass percent, 30% silicon carbide, 4% micro mist, 8% ball clay, 2% softening agent, 2% graphite, 4% swelling agent pure aluminium silicate, 3% metallic silicon power, 4% titanium corundum, 3% modified asphalt powder, the fine powder material premix is for subsequent use, the critical granularity of above-mentioned fine powder is 3mm, and bone meal is than being 50:50; Aggregate for subsequent use, powder are dropped into crushing mill roll in advance 5min, add mass ratio again and be 15% modified liquid tar, then high-speed wheel is rolled over 35min, makes horse summer value be 4MPa, and the packing that takes the dish out of the pot is surveyed horse summer value again after 3 days, and it is 8MPa that the horse summer is worth.Easily tapping outlet, without disconnected Tie Kou, without splash, ooze the iron phenomenon, not reaming, an iron consumption only is 0.39Kg/t.
Embodiment 2
According to the 1780m of Jiangxi steel mill
3High furnace parameters has been prepared aluminium matter stemming by standard formula, adds modified liquid tar by powder and forms, and wherein each component is by mass percentage in the powder: corundum 45%, silicon carbide 18%, Al
2O
3Micro mist 3%, ball clay 10%, softening agent 3%, graphite 4%, swelling agent pure aluminium silicate 5%,, metallic silicon power 5%, titanium corundum 3%, modified asphalt powder 4%; Modified liquid quality of coke tar per-cent is 18%.
Prepare in accordance with the following steps a kind of blast furnace taphole filled aluminum stemming: be 45% corundum with mass percent, 18% silicon carbide, 3% Si0
2Micro mist, 10% ball clay, 3% softening agent, 4% graphite, 5% swelling agent pure aluminium silicate, 5% metallic silicon power, 3% titanium corundum, 4% modified asphalt powder, the fine powder material premix is for subsequent use, and the critical granularity of above-mentioned fine powder is 3mm, and bone meal is than being 50:50; Aggregate for subsequent use, powder are dropped into crushing mill roll in advance 5min, add mass ratio again and be 18% modified liquid tar, then high-speed wheel is rolled over 30min, makes horse summer value be 16MPa, and the packing that takes the dish out of the pot is surveyed horse summer value again after 3 days, and it is 24MPa that the horse summer is worth.Ton iron is down to 0.42Ks/t from 1.1Ks/t, smokeless environment-friendly, and the blast furnace high yield, direct motion, stable.
Embodiment 3
According to Anshan blast furnace 3200m
3High furnace parameters has been prepared aluminium matter stemming by standard formula, adds modified liquid tar by powder and forms, and wherein each component is by mass percentage in the powder: corundum 50%, silicon carbide 12%, Al
2O
3Micro mist 5%, ball clay 12%, softening agent 1%, graphite 3%, swelling agent pure aluminium silicate 3%,, metallic aluminium powder 4%, titanium corundum 5%, modified asphalt powder 5%; Modified liquid quality of coke tar per-cent is 20%
Prepare in accordance with the following steps a kind of blast furnace taphole filled aluminum stemming: be 50% corundum with mass percent, 12% silicon carbide, 5% Al
2O
3Micro mist, 12% ball clay, 1% softening agent, 3% graphite, 3% swelling agent pure aluminium silicate, 4% metallic silicon power, 5% titanium corundum, 5% modified asphalt powder, the fine powder material premix is for subsequent use, and the critical granularity of above-mentioned fine powder is 3mm, and bone meal is than being 50:50; Aggregate for subsequent use, powder are dropped into crushing mill roll in advance 5min, add mass ratio again and be 18% modified liquid tar, then high-speed wheel is rolled over 32min, makes horse summer value be 10MPa, and the packing that takes the dish out of the pot is surveyed horse summer value again after 3 days, and it is 17MPa that the horse summer is worth.Form the good order and condition of good mud drum, table, reach the purpose of furnace retaining, an iron consumption only is 0.32Kg/t, and blast furnace has been realized stable yields, smooth safety.
Claims (3)
1. blast furnace taphole filled aluminum stemming, it is characterized in that adding modified liquid tar by powder forms, wherein each component is by mass percentage in the powder: corundum 40～50%, silicon carbide 12～30%, micro mist 3～5%, ball clay 8～12%, softening agent 1～3%, graphite 2～4%, swelling agent pure aluminium silicate 3～5%, metal powder 3～5%, titanium corundum 3-5%, modified asphalt powder 3～5%; Modified liquid quality of coke tar per-cent is 15～20%, and described micro mist is SiO
2Or Al
2O
3, described metal powder is Si powder or Al powder, described softening agent is sericite;
Described blast furnace taphole filled aluminum stemming prepares in accordance with the following steps:
(1) with mass percent is 40～50% corundum, 12～30% silicon carbide, 3～5% micro mist, 8～12% ball clay, 1～3% softening agent, 2～4% graphite, 3～5% swelling agent pure aluminium silicate, 3～5% metal powder, the titanium corundum of 3-5%, 3～5% modified asphalt powder, the fine powder material premix is for subsequent use, the critical granularity of above-mentioned fine powder is 3mm, and the bone meal ratio is: 50:50;
(2) above-mentioned aggregate for subsequent use, powder are dropped into crushing mill and roll in advance 5min, add mass ratio again and be 15～20% modified liquid tar, then high-speed wheel is rolled over 30～35min, make horse summer value be 4-16MPa, the packing that takes the dish out of the pot is surveyed horse summer value again after 3 days, horse summer value is namely qualified for 8-24MPa.
2. the preparation method of a kind of blast furnace taphole filled aluminum stemming according to claim 1 is characterized in that carrying out in accordance with the following steps:
(1) with mass percent is 40～50% corundum, 12～30% silicon carbide, 3～5% micro mist, 8～12% ball clay, 1～3% softening agent, 2～4% graphite, 3～5% swelling agent pure aluminium silicate, 3～5% metal powder, the titanium corundum of 3-5%, 3～5% modified asphalt powder, the fine powder material premix is for subsequent use, the critical granularity of above-mentioned fine powder is 3mm, and the bone meal ratio is: 50:50;
(2) above-mentioned aggregate for subsequent use, powder are dropped into crushing mill and roll in advance 5min, add mass ratio again and be 15～20% modified liquid tar, then high-speed wheel is rolled over 30～35min, make horse summer value be 4-16MPa, the packing that takes the dish out of the pot is surveyed horse summer value again after 3 days, horse summer value is namely qualified for 8-24MPa.
3. require the preparation method of 2 described a kind of blast furnace taphole filled aluminum stemmings according to claim, it is characterized in that described ball clay, silicon carbide must dry, moisture content is less than 0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110054146 CN102180681B (en) | 2011-03-08 | 2011-03-08 | Blast furnace taphole filled aluminum stemming and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110054146 CN102180681B (en) | 2011-03-08 | 2011-03-08 | Blast furnace taphole filled aluminum stemming and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102180681A CN102180681A (en) | 2011-09-14 |
| CN102180681B true CN102180681B (en) | 2013-01-30 |
Family
ID=44566998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110054146 Active CN102180681B (en) | 2011-03-08 | 2011-03-08 | Blast furnace taphole filled aluminum stemming and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102180681B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045353B (en) * | 2013-03-15 | 2016-12-28 | 中国钢铁股份有限公司 | Blast furnace blocks up mud material compositions |
| CN106699206B (en) * | 2016-12-26 | 2021-01-05 | 中国京冶工程技术有限公司 | Large and medium-sized blast furnace anhydrous stemming and preparation method thereof |
| CN108218451B (en) * | 2018-02-09 | 2020-02-21 | 天津荣程联合钢铁集团有限公司 | Anhydrous stemming and preparation method thereof |
| CN111732440A (en) * | 2020-07-29 | 2020-10-02 | 郑州科信炉料有限公司 | Environment-friendly anhydrous stemming for multi-taphole blast furnace and preparation method thereof |
| CN112897995A (en) * | 2020-11-21 | 2021-06-04 | 江阴誉球耐火材料有限公司 | Anhydrous fire-resistant stemming and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9201266A (en) * | 1992-07-14 | 1994-02-01 | Pelt & Hooykaas | METHOD FOR CONTROLLING THE COMPOSITION OF STEEL SNAILS. |
| CN100575308C (en) * | 2007-01-08 | 2009-12-30 | 宝山钢铁股份有限公司 | A kind of iron notch stemming 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 |
-
2011
- 2011-03-08 CN CN 201110054146 patent/CN102180681B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102180681A (en) | 2011-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102180681B (en) | Blast furnace taphole filled aluminum stemming and preparation method thereof | |
| CN104479665B (en) | A kind of petroleum propping agent and preparation method thereof | |
| CN104478443B (en) | A kind of dry type low-carbon environment-friendly stemming and preparation method thereof | |
| CN106946554A (en) | A kind of anhydrous stemming | |
| CN102515790B (en) | Environment friendly blast furnace stemming | |
| CN101602604A (en) | A kind of blast furnace mud and method of manufacturing technology thereof | |
| CN104446556A (en) | Blast-furnace taphole stemming prepared from ferrotitanium slag and preparation method of blast-furnace taphole | |
| CN106927799B (en) | Chromium mud special for submerged arc furnace and preparation method thereof | |
| CN108640662B (en) | Environment-friendly anhydrous stemming | |
| CN101913890B (en) | Tap hole clay for recycled material high blast furnace and preparation method thereof | |
| CN103804001B (en) | A kind of environment-friendly type SiC-C compound heavy bubble mud | |
| CN105218111A (en) | Anhydrous stemming | |
| CN103880441A (en) | Microporous lightweight corundum refractory aggregate and preparation method thereof | |
| CN102180682A (en) | Siliceous stemming for filling blast furnace taphole and preparation method thereof | |
| CN112358302A (en) | Self-repairing anhydrous stemming | |
| CN108083786B (en) | Anhydrous micro-titanium accumulated material for blast furnace taphole and preparation method thereof | |
| CN104694753A (en) | Method for preparing silicon-aluminum-iron alloy from coal gangue | |
| CN102745701A (en) | Method for preparing synthetic forsterite from boron slurry | |
| CN103396142B (en) | Composite magnesium-calcium brick having low heat conductivity and high service performance and manufacturing method thereof | |
| CN106939368B (en) | A kind of ladle carburant and preparation method thereof | |
| CN102633515B (en) | Magnesium-forsterite synthetic sand and preparation method thereof | |
| CN107244925A (en) | A kind of preparation method of glucose combination magnesia carbon brick | |
| CN104159349A (en) | Extra large-diameter anti-oxidation carbon electrode with additive added and manufacturing method thereof | |
| CN103387401A (en) | High heat conductive carbon ramming mass and preparation method thereof | |
| CN104313212B (en) | Molten iron heat preservation agent, preparation method of molten iron heat preservation agent and method for preserving temperature of molten iron |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NORTHEASTEM UNIVERSITY METALLURGICAL TECHNOLOGY IN Free format text: FORMER NAME: METALLURGY TECHNOLOGY RESEARCH INSTITUTE CO., LTD., NORTHEAST UNIVERSITY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 110819 Heping Road, Heping District, Liaoning, Shenyang, Lane No. 11, No. 3 Patentee after: NORTHEASTERN UNIVERSITY METALURGICAL TECHNOLOGY INSTITUTE CO., LTD. Address before: 110819 Heping Road, Heping District, Liaoning, Shenyang, Lane No. 11, No. 3 Patentee before: Metallurgy Technology Research Institute Co., Ltd., Northeast University |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170515 Address after: 221137 Yao village, Qingshan Town, Jiawang District, Xuzhou, Jiangsu Patentee after: Xuzhou Su brand high temperature New Material Co Ltd Address before: 110819 Heping Road, Heping District, Liaoning, Shenyang, Lane No. 11, No. 3 Patentee before: NORTHEASTERN UNIVERSITY METALURGICAL TECHNOLOGY INSTITUTE CO., LTD. |
|
| TR01 | Transfer of patent right |