CN102515789B - Blast furnace stemming for repairing and protecting iron notch - Google Patents
Blast furnace stemming for repairing and protecting iron notch Download PDFInfo
- Publication number
- CN102515789B CN102515789B CN 201110359463 CN201110359463A CN102515789B CN 102515789 B CN102515789 B CN 102515789B CN 201110359463 CN201110359463 CN 201110359463 CN 201110359463 A CN201110359463 A CN 201110359463A CN 102515789 B CN102515789 B CN 102515789B
- Authority
- CN
- China
- Prior art keywords
- parts
- blast furnace
- oxide
- iron
- stemming
- 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)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a blast furnace stemming for repairing and protecting an iron notch, which belongs to the field of refractory materials. According to the invention, the blast furnace stemming comprises the following components in parts by weight: 10-20 parts of corundum, 5-15 parts of homogenizing material, 10-20 parts of coal gangue, 10-25 parts of pyrophyllite, 10-20 parts of composite clay, 10-35 parts of composite powder, 5-20 parts of vanadium-titanium-iron powder, 1-8 parts of silicon nitride iron, 0.1-0.5 parts of wetting agent and 15-22 parts of addition bonding agent, wherein the composite powder is the mixture of oxide and nonmetal carbide. The blast furnace stemming for repairing and protecting the iron notch, disclosed by the invention, has the advantages of no generation of toxic black smoke, no fractured iron, strong slag resistance, particular suitability for being used in the blast furnace in the later stage and capability of obviously prolonging the service life of the blast furnace; and problems of the traditional stemming, like poor adaptability, large quality fluctuation, short service life, serious pollution and the like, are effectively solved.
Description
Technical field
The present invention relates to fire resisting material field, be specifically related to a kind of blast furnace mud of repairing and protecting for the iron mouth.
Background technology
In recent years, along with variation and the innovation of blast furnace operation technology, make blast furnace constantly to maximizing and the long service life development.Due to the High Temperature High Pressure operation, molten iron temperature is raise, the amount of tapping a blast furnace and flow velocity increase simultaneously, and the time lengthening of tapping a blast furnace is also more and more harsher to the requirement of tamping plug for blast furnace spout.The major function of stemming is to block iron mouth and stable tapping a blast furnace.And near the blast furnace walls iron notch inboard and cupola well zone lining brick are subject to repeatedly washing away and corroding of high pressure molten iron and pulp water owing to tapping a blast furnace; become the weak link of blast furnace lining; thereby affected the blast furnace bulk life time; therefore; stemming, except botting and stable effect of tapping a blast furnace, also has been endowed the function that the protection cupola well extends the blast furnace bottom side brick life-span.
Blast furnace is due to life-time service, and the iron mouth can be subject to Eroded, and the burner hearth end there will be hydraucone, causes the iron mouth shallow, and flowing molten iron is unstable, sees wind early, goes out iron only, even runs large stream, has a strong impact on normally and taps a blast furnace, and finally have influence on output and can not get safely ensureing.Chinese patent CN102234199A discloses a kind of high-titanium furnace protection stemming, be the ilmenite concentrate that is 75% ~ 85% by weight percent and or rutile, 2 ~ 5% clays, 1 ~ 3% mica, 10 ~ 15% tar and 2 ~ 5% pitches are made, the use of this stemming, make cupola well position (especially around iron notch) substantially with other position, synchronize and corrode, can make to improve whole blast furnace campaign one to two year, but the present invention use high-content ilmenite concentrate and or the rutile cost high, use trouble, need first this stemming to be packed into the stemming leading portion, refill general stemming, bad control, as careless manipulation, still there will be above-mentioned iron mouth shallow, the problems such as flowing molten iron is unstable.
Summary of the invention
The object of the invention is to solve the series of problems occurred after above-mentioned blast furnace life-time service, provides in a kind of use not produce that toxic black smoke, cost are low, long service life, be particularly suitable for the blast furnace middle and later periods use repair the blast furnace mud with protection for the iron mouth.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs: a kind of blast furnace mud of repairing and protecting for the iron mouth, it comprises the component of following weight part: corundum: 10 ~ 20 parts, homogenization material: 5 ~ 15 parts, coal gangue: 10 ~ 20, agalmatolite: 10 ~ 25 parts, compound clay: 10 ~ 20 parts, composite powder: 10 ~ 35 parts, the vanadium titanium-iron powder: 5 ~ 20 parts, ferro-silicon nitride: 1 ~ 8 part, wetting agent: 0.1 ~ 0.5 part; Additional wedding agent: 15 ~ 22 parts; The mixture that described composite powder is oxide compound and non-metallic carbide.
As of the present invention preferred, described oxide compound is at least one in silicon oxide, aluminum oxide, ferric oxide, magnesium oxide, calcium oxide, titanium oxide.As of the present invention preferred, described non-metallic carbide is silicon carbide and/or norbide.
As of the present invention preferred, described additional wedding agent is the modification wedding agent.This modification wedding agent is by the modification wedding agent obtained with the sodium peroxide Hybrid Heating by tar or pitch wedding agent.Described modification wedding agent can be also tar after cut or the wedding agent of pitch.As preferably, the benzopyrene content of described modification wedding agent is not more than 100ppm.
As of the present invention preferred, the oxide compound in described composite powder and the weight ratio of non-metallic carbide are 1:3 ~ 4.
The above-mentioned homogenization material of the present invention can be homogenizing high aluminium material, homogenizing bauxitic clay etc., preferential oxidation aluminium powder.
As of the present invention preferred, the mixture that described compound clay is kaolin and ball clay, can be also the mixture of the weight such as kaolin, ball clay and fireclay.
A kind of preparation method of the above-mentioned blast furnace mud for the reparation of iron mouth and protection; become block after spreading 30 ~ 40min after taking each raw material of stemming by above-mentioned composition and ratio in loan mixer; by the block section, and then the material of section is joined in extrusion machine and is extruded into strip output.
As of the present invention preferred, the spreading temperature 65 ~ 75 of described loan mixer
oc.
In sum, the present invention compared with prior art, has following outstanding advantages and beneficial effect:
1, the present invention relies on vanadium titanium in stemming to form electrodeposition substance that fusing point is high at Tie Kouchu, repairs gradually the iron mouth, thereby realizes normally tapping a blast furnace, and has guaranteed blast furnace campaign;
2, in stemming of the present invention, wedding agent is modification wedding agent over-emitting black exhaust not while using, and does not take away heat, almost, without the obnoxious flavour volatilization, has advantages of environmental protection and energy-conservation;
3, the present invention adds agalmatolite can guarantee that stemming is in sintering process, microdilatancy appears, make the iron notch flawless be difficult for oozing iron, select the low materials of cost such as coal gangue, agalmatolite simultaneously, obviously reduced the cost of stemming, be easy to opening, slag resistance is particularly suitable for by force (spy) large blast furnace and uses;
3, after using the present invention, the life-span of blast furnace obviously extends, especially after using in the blast furnace middle and later periods, can be extended to by original 15 ~ 20 years about 25 years blast furnace campaign, for enterprise has saved cost greatly, can thoroughly change current stemming bad adaptability, quality fluctuation is large, seriously polluted, the high in cost of production problem.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.This specific embodiment is only explanation of the invention; it is not the restriction to invention; those skilled in the art can make any modification to the present embodiment as required after reading this specification sheets, but as long as all are subject to the protection of patent law in claim scope of the present invention.
Embodiment 1
For the iron mouth, repair and the 3200m protected
3blast furnace mud, the weight part of its each component is as follows: corundum: 10 parts, the homogenizing high aluminium material: 15 parts, coal gangue: 20 parts, agalmatolite: 10 parts, compound clay: 20 parts, composite powder: 10 parts, vanadium titanium-iron powder: 13.5 parts; Ferro-silicon nitride: 1 part, wetting agent: 0.5 part; The modifying asphalt obtained after cut: 15 parts; Wherein composite powder is the weight ratio aluminum oxide that is 1:3 and the mixture of silicon carbide, the mixture that compound clay is the weight such as kaolin and ball clay.Above-mentioned stemming adopts the preparation of following method: by proportioning, take each raw material of stemming in loan mixer 65
obecome block after C spreading 30min, by the block section, then the material of section is joined in extrusion machine and be extruded into strip output.
Embodiment 2
For the iron mouth, repair and the 4000m protected
3blast furnace mud, the weight part of its each component is as follows: corundum: 20 parts, aluminum oxide powder: 5 parts, coal gangue: 10 parts, agalmatolite: 25 parts, compound clay: 10 parts, composite powder: 22.8 parts, vanadium titanium-iron powder: 5 parts; Ferro-silicon nitride: 2 parts, wetting agent: 0.2 part; Additional wedding agent: 22 parts; The mixture that wherein composite powder is the weight ratio silicon oxide that is 1:1:8, ferric oxide, norbide, compound clay is kaolin and the ball clay mixture that weight ratio is 1:2.Above-mentioned stemming adopts the preparation of following method: by proportioning, take each raw material of stemming in loan mixer 75
obecome block after C spreading 40min, by the block section, then the material of section is joined in extrusion machine and be extruded into strip output.
Embodiment 3
For the iron mouth, repair and the 2500m protected
3blast furnace mud, the weight part of its each component is as follows: corundum: 15 parts, homogenizing aluminium alum: 7 parts, coal gangue: 10 parts, agalmatolite: 10 parts, compound clay: 10 parts, composite powder: 35 parts, the vanadium titanium-iron powder: 4.9 parts, ferro-silicon nitride: 8 parts of wetting agents: 0.1; The modification wedding agent that has added gross weight 5 ~ 10% sodium peroxides: 17 parts; The mixture that wherein composite powder is the weight ratio magnesium oxide that is 1:1:7, calcium oxide, silicon carbide, compound clay is kaolin and the ball clay mixture that weight ratio is 2:1.Above-mentioned stemming adopts the preparation of following method: by proportioning, take each raw material of stemming in loan mixer 70
obecome block after C spreading 35min, by the block section, then the material of section is joined in extrusion machine and be extruded into strip output.
Embodiment 4
For the iron mouth, repair and the 4500m protected
3blast furnace mud, the weight part of its each component is as follows: corundum: 15 parts, aluminum oxide powder: 5 parts, coal gangue: 15 parts, agalmatolite: 20 parts, compound clay: 10 parts, composite powder: 20 parts, the vanadium titanium-iron powder: 12 parts, ferro-silicon nitride: 2.5 parts, wetting agent: 0.5 part; Added the modification wedding agent after gross weight 2 ~ 7% sodium peroxides: 22 parts; The mixture that wherein composite powder is the weight ratio magnesium oxide that is 1:1:3:3, calcium oxide, silicon carbide, norbide, the mixture that compound clay is the weight such as kaolin, ball clay and fireclay.Above-mentioned stemming adopts the preparation of following method: by proportioning, take each raw material of stemming in loan mixer 70
obecome block after C spreading 35min, by the block section, then the material of section is joined in extrusion machine and be extruded into strip output.
Embodiment 5
For the iron mouth, repair and the 2500m protected
3blast furnace mud, the weight part of its each component is as follows: corundum: 15 parts, aluminum oxide powder: 7 parts, coal gangue: 10 parts, agalmatolite: 10 parts, compound clay: 15 parts, composite powder: 10 parts, the vanadium titanium-iron powder: 5 parts, ferro-silicon nitride: 8 parts; Modification wedding agent: 17 parts; The mixture that wherein composite powder is the weight ratio magnesium oxide that is 1:1:1:9, calcium oxide, titanium oxide, silicon carbide, the mixture that compound clay is the weight such as kaolin, ball clay and fireclay.Above-mentioned stemming adopts the preparation of following method: by proportioning, take each raw material of stemming in loan mixer 70
obecome block after C spreading 35min, by the block section, then the material of section is joined in extrusion machine and be extruded into strip output.
The performance test results of above-described embodiment 1 ~ 5 sees the following form, it uses rear situation as follows: easily beat mud, iron mouth appropriate depth, mean pressure big gun 20 minutes, sintering is rapid, sintering strength is good, and opening is easy, and anti-slag iron aggressiveness is good, the iron mouth is without obvious reaming, do not emit tobacco, have no irritating odor, the stokehold Working environment be improved significantly.
Claims (3)
1. for the iron mouth, repair and the blast furnace mud of protecting for one kind, it is characterized in that, it comprises the component of following weight part: corundum: 10 ~ 20 parts, and homogenization material: 5 ~ 15 parts, coal gangue: 10 ~ 20, agalmatolite: 10 ~ 25 parts, compound clay: 10 ~ 20 parts, composite powder: 10 ~ 35 parts, vanadium titanium-iron powder: 5 ~ 20 parts, ferro-silicon nitride: 1 ~ 8 part, wetting agent: 0.1 ~ 0.5 part; Additional wedding agent: 15 ~ 22 parts; The mixture that described composite powder is oxide compound and non-metallic carbide; Described additional wedding agent is the modification wedding agent;
This modification wedding agent be by tar or pitch wedding agent by the modification wedding agent obtained with the sodium peroxide Hybrid Heating, the benzopyrene content of described modification wedding agent is not more than 100ppm;
Described oxide compound is at least one in silicon oxide, aluminum oxide, ferric oxide, magnesium oxide, calcium oxide, titanium oxide
;described non-metallic carbide is silicon carbide and/or norbide;
Oxide compound in described composite powder and the weight ratio of non-metallic carbide are 1:3 ~ 4;
Described homogenization material is aluminum oxide powder;
The mixture that described compound clay is kaolin and ball clay.
2. claimed in claim 1ly for the iron mouth, repair the preparation method with the blast furnace mud of protection for one kind; it is characterized in that; become block after spreading 30 ~ 40min after taking each raw material of stemming by the composition and ratio of claim 1 in loan mixer; by the block section, and then the material of section is joined in extrusion machine and is extruded into strip output.
3. the preparation method of the blast furnace mud for the reparation of iron mouth and protection according to claim 2, is characterized in that the spreading temperature 65 ~ 75 of described loan mixer
oc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110359463 CN102515789B (en) | 2011-11-14 | 2011-11-14 | Blast furnace stemming for repairing and protecting iron notch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110359463 CN102515789B (en) | 2011-11-14 | 2011-11-14 | Blast furnace stemming for repairing and protecting iron notch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102515789A CN102515789A (en) | 2012-06-27 |
| CN102515789B true CN102515789B (en) | 2013-07-17 |
Family
ID=46286933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110359463 Active CN102515789B (en) | 2011-11-14 | 2011-11-14 | Blast furnace stemming for repairing and protecting iron notch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102515789B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058766B (en) * | 2014-07-16 | 2015-08-26 | 潘辉平 | A kind of 2500m 3blast furnace mud |
| CN106145975A (en) * | 2014-12-29 | 2016-11-23 | 张婷 | A kind of 2200m3blast furnace mud |
| CN107353021A (en) * | 2017-07-18 | 2017-11-17 | 偃师市民兴炉料有限公司 | A kind of preparation technology of high intensity environmental-protection furnace stemming |
| CN110004260A (en) * | 2019-01-25 | 2019-07-12 | 长兴煤山新型炉料有限公司 | A kind of taphole mud sleeve total solution |
| CN110128153A (en) * | 2019-05-21 | 2019-08-16 | 山西禄纬堡太钢耐火材料有限公司 | A kind of blast furnace taphole clay containing Titanium 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 |
| CN115259868A (en) * | 2022-07-28 | 2022-11-01 | 江西联达冶金有限公司 | Anhydrous stemming based on environment-friendly resin |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1850728A (en) * | 2006-05-19 | 2006-10-25 | 王恩余 | Blast furnace taphole Al2O3-SiC-C system no-water cannon mire |
| CN101219900A (en) * | 2007-01-08 | 2008-07-16 | 宝山钢铁股份有限公司 | Bleed hole stemming and method for producing the same |
| CN101654374A (en) * | 2009-09-18 | 2010-02-24 | 中国地质大学（北京） | Stemming fire-proof material for blast furnace containing coal gangue and white olivine and preparation method thereof |
| CN102020481A (en) * | 2011-01-04 | 2011-04-20 | 马鞍山钢铁股份有限公司 | Novel anhydrous stemming for blast furnace |
| CN102180682A (en) * | 2011-03-08 | 2011-09-14 | 沈阳东北大学冶金技术研究所有限公司 | Siliceous stemming for filling blast furnace taphole and preparation method thereof |
-
2011
- 2011-11-14 CN CN 201110359463 patent/CN102515789B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1850728A (en) * | 2006-05-19 | 2006-10-25 | 王恩余 | Blast furnace taphole Al2O3-SiC-C system no-water cannon mire |
| CN101219900A (en) * | 2007-01-08 | 2008-07-16 | 宝山钢铁股份有限公司 | Bleed hole stemming and method for producing the same |
| CN101654374A (en) * | 2009-09-18 | 2010-02-24 | 中国地质大学（北京） | Stemming fire-proof material for blast furnace containing coal gangue and white olivine and preparation method thereof |
| CN102020481A (en) * | 2011-01-04 | 2011-04-20 | 马鞍山钢铁股份有限公司 | Novel anhydrous stemming for blast furnace |
| CN102180682A (en) * | 2011-03-08 | 2011-09-14 | 沈阳东北大学冶金技术研究所有限公司 | Siliceous stemming for filling blast furnace taphole and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102515789A (en) | 2012-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102515789B (en) | Blast furnace stemming for repairing and protecting iron notch | |
| CN102515790B (en) | Environment friendly blast furnace stemming | |
| CN100506433C (en) | Carbon-free casting powder for casting steel making die | |
| JP5456965B2 (en) | Thermal spray material | |
| TW200624564A (en) | A slag conditioner composition, process for manufacture and method of use in steel production | |
| CN101654375B (en) | Low-carbon magnesia carbon brick | |
| CN101367659A (en) | Magnesium calcium RH varnished tube hot spray repair material for smelting silicon steel and formulating method thereof | |
| CN104725063A (en) | Environment-friendly stemming for blast furnace and preparation method thereof | |
| CN105152656A (en) | Furnace-protecting environment-friendly stemming | |
| CN103170592B (en) | Tundish covering agent prepared by using blast furnace slag | |
| CN102009142B (en) | 30MnSi steel special continuous casting crystallizer functional protection material | |
| CN101585117A (en) | Welding rod for welding hard alloy and steel parts and welding method thereof | |
| CN105732056A (en) | Baking-free ramming mass for blast furnace iron runners | |
| CN103600181B (en) | A kind of low hydrogen type electrode for pipeline root bead | |
| CN107163992B (en) | Auxiliary agent for improving viscosity-temperature characteristics of coal ash slag and application thereof | |
| CN103332964B (en) | Viscous slag prevention coating for refractory material in casting blank heating furnace | |
| JP5493711B2 (en) | Thermal spray repair material | |
| JP2005111492A (en) | Mold powder for continuously casting steel | |
| CN103360088B (en) | A kind of copper smelting-furnace rare oxygen combustor nozzle brick and making method | |
| CN106513606B (en) | A kind of continuous-casting crystallizer especially used covering slag of IF steel | |
| CN101637811B (en) | Continuous casting functional protective material specially used for high pressure oil well pipe | |
| CN202824646U (en) | Continuous casting sliding gate nozzle sliding plate with laser cladding surface treatment layer | |
| CN102019383B (en) | Special functional protection material of continuous casting crystallizer for alloy tool steel | |
| CN103878504A (en) | Low-temperature steel CO2 one-side welding liner block | |
| CN102554163A (en) | Energy-saving and environment-friendly protecting material for slab continuous casting mold |
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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313100 new industrial park, pheasant City, Huzhou, Zhejiang, Changxing County Patentee after: Zhejiang Jincheng new material Limited by Share Ltd Address before: 313100 new industrial park, pheasant City, Huzhou, Zhejiang, Changxing County Patentee before: Zhejiang Jincheng Refractories Co., Ltd. |