CN102180682A - Siliceous stemming for filling blast furnace taphole and preparation method thereof - Google Patents
Siliceous stemming for filling blast furnace taphole and preparation method thereof Download PDFInfo
- Publication number
- CN102180682A CN102180682A CN2011100541475A CN201110054147A CN102180682A CN 102180682 A CN102180682 A CN 102180682A CN 2011100541475 A CN2011100541475 A CN 2011100541475A CN 201110054147 A CN201110054147 A CN 201110054147A CN 102180682 A CN102180682 A CN 102180682A
- Authority
- CN
- China
- Prior art keywords
- powder
- mass percent
- stemming
- siliceous
- blast furnace
- 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.)
- Pending
Links
Landscapes
- Ceramic Products (AREA)
Abstract
The invention relates to siliceous stemming for filling a blast furnace taphole and a preparation method thereof, and belongs to the field of high-temperature metallurgical fireproof materials. The method comprises the following steps of: pre-mixing 35 to 45 mass percent of diaspore silicate, 16 to 27 mass percent of silicon carbide, 3 to 5 mass percent of micro powder, 10 to 18 mass percent of ball clay, 2 to 4 mass percent of graphite, 1 to 3 mass percent of plasticizer, 6 to 10 mass percent of ferrosilicon nitride, 2 to 4 mass percent of metal powder, 3 to 5 mass percent of modified asphalt powder and 3 to 5 mass percent of expanding agent aluminum silicate fine powder for later use, putting into a wheel roller and pre-rolling for 5 minutes; adding 15 to 20 mass percent of modified liquid tar, performing wheel rolling at a high speed for 30 to 35 minutes to ensure that a Marshall value is between 4 and 16MPa; and packaging, and measuring the Marshall value 3 days later, wherein the product is qualified when the Marshall value is between 8 and 24MPa. The problems of low high-temperature strength and high-temperature toughness of the stemming are solved, and the problems of a shallow iron notch, a broken iron notch and splashing are solved simultaneously.
Description
Technical field
The present invention relates to a kind of blast furnace iron notch and fill siliceous stemming and preparation method thereof, belong 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 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 big, the production cost height.
Summary of the invention
At the problem that exists in the production status of China numerous stemming producer and the stemming use, the present invention introduces high-carbon wedding agent T60 and CP bituminous resins powder, 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 iron notch of the present invention is filled siliceous stemming and preparation method thereof, and particular content is as follows:
A kind of blast furnace iron notch is filled siliceous stemming, be made up of powder liquid feeding structural reform tar, wherein each component is by mass percentage in the powder: water manosil AS stone 35～45%, silicon carbide 16～27%, micro mist 3～5%, ball clay 10～18%, graphite 2～4%, softening agent 1～3%, ferro-silicon nitride 6～10%, metal powder 2～4%, modified asphalt powder 3～5%, swelling agent pure aluminium silicate 3～5%; Modified liquid quality of coke tar per-cent is 15～20%.
Above-mentioned micro mist is SiO2 or Al2O3, and described metal powder is Si powder or Al powder.
A kind of blast furnace iron notch is filled the preparation method of siliceous stemming, it is characterized in that carrying out according to following steps: (1) is 35～45% water manosil AS stone, 16～27% silicon carbide, 3～5% micro mist, 10～18% ball clay, 2～4% graphite, 1～3% softening agent, 6～10% ferro-silicon nitride, 2～4% metal powder, 3～5% modified asphalt powder with mass percent, 3～5% swelling agent pure aluminium silicate fine powder material premix is standby, the critical granularity of above-mentioned fine powder is 3mm, and the bone meal ratio is: 50:50;
(2) standby aggregate, powder are dropped into crushing mill and roll over 5min in advance, add mass ratio again and be 15～20% liquid modifying liquid tar, wheel is rolled over 30～35min at a high speed then, make horse summer value be 4-16MPa, take the dish out of the pot, pack, survey horse summer value after 3 days again, horse summer value is promptly qualified for 8-24MPa.
Above-mentioned ball clay, silicon carbide must be dried, and moisture content is less than 0.5%.
Zhi Bei blast furnace iron notch is filled siliceous stemming according to the method described above, and its physico-chemical property is as shown in table 1:
Table 1: blast furnace iron notch is filled the physico-chemical property of siliceous stemming
A kind of blast furnace iron notch of the present invention is filled siliceous stemming and preparation method thereof and is utilized 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 for use 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 of the present invention is filled siliceous stemming and preparation method thereof be 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 the 1080m of Shandong steel mill
3High furnace parameters, the blast furnace iron notch of preparation is filled siliceous stemming, is made up of powder liquid feeding structural reform tar, and wherein each component is by mass percentage in the powder: water manosil AS stone 45%, silicon carbide 16%, SiO
2Micro mist 3%, ball clay 18%, graphite 2%, softening agent 3%, ferro-silicon nitride 6%, metallic silicon power 2%, modified asphalt powder 3%, swelling agent pure aluminium silicate 2%; Modified liquid quality of coke tar per-cent is 17%.
A kind of blast furnace iron notch is filled the preparation method of siliceous stemming, carry out according to following steps: with mass percent is 45% water manosil AS stone, 16% silicon carbide, 3% micro mist, 18% ball clay, 2% graphite, 3% softening agent, 6% ferro-silicon nitride, 2% metal powder, 3% modified asphalt powder, 3% swelling agent pure aluminium silicate fine powder material premix is standby, the critical granularity of above-mentioned fine powder is 3mm, and bone meal is than being 50:50; Standby aggregate, powder are dropped into crushing mill roll over 5min in advance, add mass ratio again and be 17% modified liquid tar, wheel is rolled over 35min at a high speed then, makes horse summer value be 16MPa, takes the dish out of the pot, packs, and surveys horse summer value after 3 days again, and it is that 24MPa is promptly qualified that the horse summer is worth.Products obtained therefrom shows as no splash, the disconnected Tie Kou of nothing, easy opening, smokeless, and the consumption of ton iron is reduced to 0.63Ks/t. from 1.2Ks/t.
Embodiment 2
According to the 1780m of Jiangxi steel mill
3High furnace parameters, the blast furnace iron notch of the preparation of preparation is filled siliceous stemming, is made up of powder liquid feeding structural reform tar, and wherein each component is by mass percentage in the powder: water manosil AS stone 35%, silicon carbide 27%, Al
2O
3Micro mist 4%, ball clay 10%, graphite 3%, softening agent 2%, ferro-silicon nitride 7%, metallic aluminium powder 4%, modified asphalt powder 4%, swelling agent pure aluminium silicate 4%; Modified liquid quality of coke tar per-cent is 15%.
A kind of blast furnace iron notch is filled the preparation method of siliceous stemming, carries out according to following steps: with mass percent is 35% water manosil AS stone, 27% silicon carbide, 4% Al
2O
3Micro mist, 10% ball clay, 3% graphite, 2% softening agent, 7% ferro-silicon nitride, 4% metallic aluminium powder, 4% modified asphalt powder, 4% swelling agent pure aluminium silicate fine powder material premix is standby, and the critical granularity of above-mentioned fine powder is 3mm, and bone meal is than being 50:50; Standby aggregate, powder are dropped into crushing mill roll over 5min in advance, add mass ratio again and be 15% modified liquid tar, wheel is rolled over 30min at a high speed then, makes horse summer value be 4MPa, takes the dish out of the pot, packs, and surveys horse summer value after 3 days again, and it is that 8MPa is promptly qualified that the horse summer is worth.Products obtained therefrom obtains good praise, and an iron is reduced to 0.52Ks/t from 1.1Ks/t, smokeless environment-friendly, and the blast furnace high yield, direct motion is stable.
Embodiment 3
According to the 1080m of Shandong steel mill
3High furnace parameters, the blast furnace iron notch of preparation is filled siliceous stemming, is made up of powder liquid feeding structural reform tar, and wherein each component is by mass percentage in the powder: water manosil AS stone 38%, silicon carbide 18%, SiO
2Micro mist 5%, ball clay 13%, graphite 4%, softening agent 1%, ferro-silicon nitride 10%, metallic silicon power 3%, modified asphalt powder 5%, swelling agent pure aluminium silicate 3%; Modified liquid quality of coke tar per-cent is 17%.
A kind of blast furnace iron notch is filled the preparation method of siliceous stemming, carries out according to following steps: with mass percent is 38% water manosil AS stone, 18% silicon carbide, 5% SiO
2Micro mist, 13% ball clay, 4% graphite, 1% softening agent, 10% ferro-silicon nitride, 3% metallic silicon power, 5% modified asphalt powder, 3% swelling agent pure aluminium silicate fine powder material premix is standby, and the critical granularity of above-mentioned fine powder is 3mm, and bone meal is than being 50:50; Standby aggregate, powder are dropped into crushing mill roll over 5min in advance, add mass ratio again and be 20% modified liquid tar, wheel is rolled over 32min at a high speed then, makes horse summer value be 10MPa, takes the dish out of the pot, packs, and surveys horse summer value after 3 days again, and it is that 17MPa is promptly qualified that the horse summer is worth.Products obtained therefrom shows as no splash, the disconnected Tie Kou of nothing, easy opening, smokeless.
Claims (4)
1. a blast furnace iron notch is filled siliceous stemming, it is characterized in that adding modified liquid tar by powder forms, wherein each component is by mass percentage in the powder: water manosil AS stone 35～45%, silicon carbide 16～27%, micro mist 3～5%, ball clay 10～18%, graphite 2～4%, softening agent 1～3%, ferro-silicon nitride 6～10%, metal powder 2～4%, modified asphalt powder 3～5%, swelling agent pure aluminium silicate 3～5%; Modified liquid tar, mass percent are 15～20%.
2. a kind of blast furnace iron notch according to claim 1 is filled siliceous stemming, it is characterized in that described micro mist is SiO
2Or Al
2O
3, described metal powder is Si powder or Al powder, described softening agent is a sericite.
3. a kind of blast furnace iron notch according to claim 1 is filled the preparation method of siliceous stemming, it is characterized in that carrying out according to following steps:
(1) with mass percent is 35～45% water manosil AS stone, 16～27% silicon carbide, 3～5% micro mist, 10～18% ball clay, 2～4% graphite, 1～3% softening agent, 6～10% ferro-silicon nitride, 2～4% metal powder, 3～5% modified asphalt powder, 3～5% swelling agent pure aluminium silicate fine powder material premix is standby, the critical granularity of above-mentioned fine powder is 3mm, and the bone meal ratio is: 50:50;
(2) above-mentioned standby aggregate, powder are dropped into crushing mill and roll over 5min in advance,, add mass ratio again and be 15～20% modified liquid tar, wheel is rolled over 30～35min at a high speed then, makes horse summer value for 4-16MPa, takes the dish out of the pot, packs, survey horse summer value after 3 days again, horse summer value is promptly qualified for 8-24MPa.
4. require 2 described a kind of blast furnace iron notch to fill the preparation method of siliceous stemming 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 |
|---|---|---|---|
| CN2011100541475A CN102180682A (en) | 2011-03-08 | 2011-03-08 | Siliceous stemming for filling blast furnace taphole and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100541475A CN102180682A (en) | 2011-03-08 | 2011-03-08 | Siliceous stemming for filling blast furnace taphole and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102180682A true CN102180682A (en) | 2011-09-14 |
Family
ID=44566999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100541475A Pending CN102180682A (en) | 2011-03-08 | 2011-03-08 | Siliceous stemming for filling blast furnace taphole and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102180682A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515789A (en) * | 2011-11-14 | 2012-06-27 | 浙江锦诚耐火材料有限公司 | Blast furnace stemming for repairing and protecting iron notch |
| CN103044040A (en) * | 2012-12-27 | 2013-04-17 | 内蒙古包钢利尔高温材料有限公司 | Anhydrous stemming for tapping hole of blast furnace and preparation method thereof |
| CN104139458A (en) * | 2014-07-24 | 2014-11-12 | 中国京冶工程技术有限公司 | Stirring process for water-free taphole clay production process |
| CN105174985A (en) * | 2015-11-03 | 2015-12-23 | 张婷 | Stable-taphole blast furnace stemming |
-
2011
- 2011-03-08 CN CN2011100541475A patent/CN102180682A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515789A (en) * | 2011-11-14 | 2012-06-27 | 浙江锦诚耐火材料有限公司 | Blast furnace stemming for repairing and protecting iron notch |
| CN102515789B (en) * | 2011-11-14 | 2013-07-17 | 浙江锦诚耐火材料有限公司 | Blast furnace stemming for repairing and protecting iron notch |
| CN103044040A (en) * | 2012-12-27 | 2013-04-17 | 内蒙古包钢利尔高温材料有限公司 | Anhydrous stemming for tapping hole of blast furnace and preparation method thereof |
| CN103044040B (en) * | 2012-12-27 | 2014-05-07 | 内蒙古包钢利尔高温材料有限公司 | Anhydrous stemming for tapping hole of blast furnace and preparation method thereof |
| CN104139458A (en) * | 2014-07-24 | 2014-11-12 | 中国京冶工程技术有限公司 | Stirring process for water-free taphole clay production process |
| CN104139458B (en) * | 2014-07-24 | 2016-08-24 | 中国京冶工程技术有限公司 | A kind of stirring technique of anhydrous stemming production process |
| CN105174985A (en) * | 2015-11-03 | 2015-12-23 | 张婷 | Stable-taphole blast furnace stemming |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100590098C (en) | Environment-protection dry type vibrating material and production method thereof | |
| CN106187289B (en) | Method for preparing light foamed ceramic by using nickel slag and biomass powder | |
| CN104478443B (en) | A kind of dry type low-carbon environment-friendly stemming and preparation method thereof | |
| CN104119939B (en) | A kind of ironmaking hot pressing iron coke and preparation method thereof | |
| CN101284736A (en) | Antisticking coating mixture for steel-smelting and preparation method threreof | |
| CN109231968A (en) | Continuous casting production working lining dry materials and preparation method thereof | |
| CN102180681B (en) | Blast furnace taphole filled aluminum stemming and preparation method thereof | |
| CN103664211A (en) | Castable for blast-furnace tapping channel and preparation method thereof | |
| CN101602604A (en) | A kind of blast furnace mud and method of manufacturing technology thereof | |
| CN102180682A (en) | Siliceous stemming for filling blast furnace taphole and preparation method thereof | |
| CN101775462B (en) | Micro powder graphite carburant, preparation method and use method thereof | |
| CN104446556A (en) | Blast-furnace taphole stemming prepared from ferrotitanium slag and preparation method of blast-furnace taphole | |
| CN101519311B (en) | Magnesia-carbon gunning material for converter or electric furnace | |
| CN105084916B (en) | A kind of anticorrosive magnesium-aluminium fire resistant materials and preparation method thereof | |
| CN107162604A (en) | A kind of high temperature, which is burnt till, exempts from dipping sliding plate brick and preparation method thereof | |
| CN103880441A (en) | Microporous lightweight corundum refractory aggregate and preparation method thereof | |
| CN101942561A (en) | Method for preparing aluminum-silicon-ferrum alloy from coal gangue | |
| 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 | |
| CN103130521B (en) | Coating material on fireproof material for continuous casting device and use 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 | |
| CN103387401A (en) | High heat conductive carbon ramming mass and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110914 |