CN101857444A - Thermal state ceramic jetting material for longevity type blast furnace - Google Patents
Thermal state ceramic jetting material for longevity type blast furnace Download PDFInfo
- Publication number
- CN101857444A CN101857444A CN 201010179044 CN201010179044A CN101857444A CN 101857444 A CN101857444 A CN 101857444A CN 201010179044 CN201010179044 CN 201010179044 CN 201010179044 A CN201010179044 A CN 201010179044A CN 101857444 A CN101857444 A CN 101857444A
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- thermal state
- super
- state ceramic
- fine powder
- 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
Abstract
The invention discloses a thermal state ceramic jetting material for a longevity type blast furnace. The thermal state ceramic jetting material comprises the following components in percentage by weight: 65-70 percent of mullite, 8-15 percent of carborundum, 1-10 percent of submicron powder, 5-10 percent of binding agent and 0.1-5 percent of additive. The jetting material prepared by the technical scheme of the invention has the characteristics of stable property, high strength, small shrinkage, low rebound rate, good construction property and the like; and the thermal state ceramic jetting material for the longevity type blast furnace is used to repair damaged parts of a blast furnace by a blast furnace remote control thermal state jetting method with convenient the construction of a jetting repair operation, the jetting repair is beneficial to maintaining reasonable furnace contour for the blast furnace, improving the distribution of burden materials and coal gas flows, the utilization of the coal gas energy is improved, and the invention play a role of increasing yield and reducing consumption.
Description
One, technical field:
The present invention relates to a kind of refractory materials, particularly relate to a kind of thermal state ceramic jetting material for longevity type blast furnace.
Two, technical background:
At present, generally adopt regular or irregular repairing of Gunning refractory, replace with this and build firebrick lining again by laying bricks or stones, thereby improved greatly the work-ing life of blast furnace for the repairing at the damaged position of blast furnace lining.
At present, blast furnace is repaired the Gunning refractory that adopts and is generally the cold conditions Gunning refractory, the shortcoming that this cold conditions Gunning refractory exists has: need the blast furnace stopping black furnace can carry out artificial construction's spray repair, construction period is long, influence blast furnace production, have the material performance less stable simultaneously, a shortcoming such as intensity is low, shrinking percentage is big, bounce-back rate height, construction effect are bad.
At present, bibliographical information about the Gunning refractory aspect also has much, for example: 1, application number is 200910098844.3, denomination of invention is " single iron-port blast furnace tapping main channel gunning material and gunning technology ", and this Gunning refractory is by brown corundum or compact alumina, silicon carbide, white fused alumina, α-Al
2O
3, silicon powder, pure calcium aluminate cement, pelletted pitch and preparation of composite additives form.Antiscour after this invention can guarantee to repair, anti-oxidant, anti-slag such as invade at performance, can implement fast again, ensure the improved smooth use of single iron mouth blast furnace main channel.2,200910097752.3, denomination of invention is " a kind of coverter pig gunning mix ", this Gunning refractory is to be prepared from by forsterite, rhombspar, short setting accelerator, the middle-grade magnesia of sintering and the wedding agent of burning, the Gunning refractory that adopts this prescription to make has the adhesive rate height when being applied in the converter, antistripping is good, sintering velocity is fast, little advantage is expanded in anti-erosion, antiscour, high temperature, is difficult for stifled rifle when constructing simultaneously.3, application number is 03115604.5, denomination of invention is " converter taphole Gunning refractory ", this Gunning refractory is made up of magnesia, phosphoric acid salt, slaked lime, chrome green and agglutinant, Gunning refractory of the present invention is used for converter taphole and the serious position of melting loss to carry out spray repair and safeguards, has the volume density height, amount of water is low, sintering is fast, adhesive rate is high and the advantage of long service life.
Three, summary of the invention:
The technical problem to be solved in the present invention provides a kind of thermal state ceramic jetting material for longevity type blast furnace.Characteristics such as jetting material of the present invention has stable performance, intensity height, shrinking percentage is little, the bounce-back rate is low, have good workability.
In order to address the above problem, the technical solution used in the present invention is:
The invention provides a kind of thermal state ceramic jetting material for longevity type blast furnace, represent that with weight percentage the raw material of described thermal state ceramic jetting material consists of mullite 65～70%, silicon carbide 8～15%, super-fine powder 1～10%, wedding agent 5～10% and additive 0.1～5%.
According to above-mentioned thermal state ceramic jetting material for longevity type blast furnace, the granularity of described mullite is 0～3mm; Al in the described mullite
2O
3The quality percentage composition be 68～70%.
According to above-mentioned thermal state ceramic jetting material for longevity type blast furnace, described silicon carbide adopts Gansu to produce silicon carbide; Quality percentage composition＞90% of SiC in the described silicon carbide.
According to above-mentioned thermal state ceramic jetting material for longevity type blast furnace, the granularity of described super-fine powder is 500 orders; Described super-fine powder is SiO
2Super-fine powder and α-Al
2O
3The mixture of super-fine powder.
According to above-mentioned thermal state ceramic jetting material for longevity type blast furnace, described SiO
2Super-fine powder and α-Al
2O
3Both shared weight percentages were respectively 18～22% and 78～82% when super-fine powder mixed.
According to above-mentioned thermal state ceramic jetting material for longevity type blast furnace, described wedding agent is a Lafarge cement.
According to above-mentioned thermal state ceramic jetting material for longevity type blast furnace, described additive is phosphoric acid salt, aluminium powder and explosion-proof fiber three's a mixture.
According to above-mentioned thermal state ceramic jetting material for longevity type blast furnace, the proportioning ratio when described phosphoric acid salt, aluminium powder and explosion-proof fiber three mix is 1: 2: 1.
According to above-mentioned thermal state ceramic jetting material for longevity type blast furnace, described phosphoric acid salt is tripoly phosphate sodium STPP.
The mixing preparation method of thermal state ceramic jetting material for longevity type blast furnace of the present invention: the proportioning according to thermal state ceramic jetting material for longevity type blast furnace of the present invention prepares various raw materials, and its various raw materials are mixed, and mixes the back packing and gets final product.
Thermal state ceramic jetting material for longevity type blast furnace of the present invention is to adopt the constructional method of the hot spray repair of blast furnace remote control to repair the damaged position of blast furnace lining.The present invention utilizes the existing hot gunning technology of blast furnace remote control, adopt thermal state ceramic jetting material for longevity type blast furnace of the present invention that the damaged position of blast furnace lining is adopted and regularly or irregularly carry out hot spray repair, under the situation of shutdown maintenance not, adopt high-pressure air to carry granular refractory material, in spray gun, mix (ratio about 10% that the add-on of water accounts for jetting material in the spray gun) with suitable quantity of water, be incident upon on the furnace lining surface of being repaired through spray gun, and the necessarily required thickness (can reach the hundreds of millimeter) that reaches attached to it, replace with this and to build firebrick lining again by laying bricks or stones, thereby improved blast furnace campaign greatly.
Positive beneficial effect of the present invention:
Characteristics (various performance index are referring to table one) such as 1, the jetting material that utilizes technical solution of the present invention to prepare has stable performance, intensity height, shrinking percentage is little, the bounce-back rate is low, have good workability.Utilize product of the present invention that the damaged position of blast furnace lining is repaired, compare, improved the work-ing life (every spray repair once can be used more than 1 year) of blast furnace greatly with existing Gunning refractory.
The physical and chemical index of table one thermal state ceramic jetting material for longevity type blast furnace:
| Project | Unit | Gunning refractory-1 | Gunning refractory-2 |
| ??Al 2O 3 | ??％ | ??≥50 | ??≥58 |
| ??SiO 2 | ??％ | ??≤40 | ??≤35 |
| ??SiC | ??％ | ??/ | ??≥10 |
| ??CaO | ??％ | ??≤4.2 | ??≤2.9 |
| Volume density | ??g/cm 3 | ??≥2.0 | ??≥2.4 |
| 110 ℃ of compressive strengths | ??MPa | ??≥25 | ??≥30 |
| 1400 ℃ of compressive strengths | ??MPa | ??≥45 | ??≥50 |
| Line changes | ??％ | ??1300℃±0.5 | ??1400℃±0.5 |
| Use the position | The shaft middle and upper part | Restoration of lower stack, furnace bosh bosh |
Utilizing thermal state ceramic jetting material for longevity type blast furnace of the present invention to adopt the hot spray repair method of blast furnace remote control that the damaged position of blast furnace is repaired has the following advantages:
2, the present invention has made full use of the original fire proof material of furnace lining of blast furnace, has reduced the consumption of refractory materials, and energy-saving effect is remarkable, the required heat of taking away of cooling when obviously having reduced the blast furnace medium-capital overhauling, thus reduced energy expenditure.
3, spray repair activity duration weak point is repaiied the time in the saving, and operation rate of blast furnace is improved; Speed of application is fast, and the remote spraying ratio is laid bricks and can be shortened engineering time more than 2/3rds, for large blast furnace, and its remarkable in economical benefits.
4, construction quality height: by remote-control equipment may command feeding speed, amount of water, blast, thereby control bounce-back rate reaches reasonable range, generally below 10%, can form fine and close, uniformly spray furnace lining; Blow-on is convenient, has improved high utilization factor, and remote spraying maintenance blast furnace does not need complete blowing out, only needs that charge level is dropped to certain altitude, charge level and seals up with the banking material and get final product, and therefore, it is very easy to play stove again.Can recover the type of furnace on request by remote spraying, therefore, after blast furnace plays stove, can return to normal production capacity factor of a blast furnace height very soon.
5, the spray repair job execution is convenient, helps blast furnace after the spray repair and keeps reasonable furnace, improves furnace charge and coal gas distributions, improves the utilization of coal gas energy, plays the effect of volume increase consumption reduction.
6, safety of construction height: remote spraying need not the staff and enters blast furnace work, the staff only needs outside blast furnace, handle spray gun by remote-control equipment and spray, danger such as avoided entering staff's blast furnace work generation carbon monoxide poisoning, fall, injure by a crashing object, damage.
Four, embodiment:
Following examples only in order to further specify the present invention, do not limit content of the present invention.
Embodiment 1:
Thermal state ceramic jetting material for longevity type blast furnace of the present invention is represented with weight percentage, and the raw material of described thermal state ceramic jetting material consists of mullite 67%, silicon carbide 12%, and (described super-fine powder is SiO to super-fine powder 10%
2Super-fine powder and α-Al
2O
3The mixture of super-fine powder, SiO when the two mixes
2Super-fine powder and α-Al
2O
3The shared percentage composition of super-fine powder is respectively 20% and 80%), wedding agent (Lafarge cement) 8% and additive 3% (additive is tripoly phosphate sodium STPP, aluminium powder and explosion-proof fiber three's a mixture, and three's blending ratio is 1: 2: 1).
Each material performance of the present invention requires: the granularity of described mullite is 0～3mm, Al in the described mullite
2O
3The quality percentage composition be 68～70%; Described silicon carbide adopts Gansu to produce silicon carbide, quality percentage composition＞90% of SiC in the described silicon carbide; The granularity of described super-fine powder is 500 orders;
Embodiment 2: substantially the same manner as Example 1, difference is:
Thermal state ceramic jetting material for longevity type blast furnace of the present invention is represented with weight percentage, and the raw material of described thermal state ceramic jetting material consists of mullite 70%, silicon carbide 8%, and (described super-fine powder is SiO to super-fine powder 7%
2Super-fine powder and α-Al
2O
3The mixture of super-fine powder, SiO when the two mixes
2Super-fine powder and α-Al
2O
3The shared percentage composition of super-fine powder is respectively 18% and 82%), wedding agent (Lafarge cement) 10% and additive 5% (additive is tripoly phosphate sodium STPP, aluminium powder and explosion-proof fiber three's a mixture, and three's blending ratio is 1: 2: 1).
Embodiment 3: substantially the same manner as Example 1, difference is:
Thermal state ceramic jetting material for longevity type blast furnace of the present invention is represented with weight percentage, and the raw material of described thermal state ceramic jetting material consists of mullite 65%, silicon carbide 15%, and (described super-fine powder is SiO to super-fine powder 8%
2Super-fine powder and α-Al
2O
3The mixture of super-fine powder, SiO when the two mixes
2Super-fine powder and α-Al
2O
3The shared percentage composition of super-fine powder is respectively 19% and 81%), wedding agent (Lafarge cement) 9% and additive 3% (additive is tripoly phosphate sodium STPP, aluminium powder and explosion-proof fiber three's a mixture, and three's blending ratio is 1: 2: 1).
Embodiment 4: substantially the same manner as Example 1, difference is:
Thermal state ceramic jetting material for longevity type blast furnace of the present invention is represented with weight percentage, and the raw material of described thermal state ceramic jetting material consists of mullite 70%, silicon carbide 12%, and (described super-fine powder is SiO to super-fine powder 9%
2Super-fine powder and α-Al
2O
3The mixture of super-fine powder, SiO when the two mixes
2Super-fine powder and α-Al
2O
3The shared percentage composition of super-fine powder is respectively 20% and 80%), wedding agent (Lafarge cement) 5% and additive 4% (additive is tripoly phosphate sodium STPP, aluminium powder and explosion-proof fiber three's a mixture, and three's blending ratio is 1: 2: 1).
Embodiment 5: substantially the same manner as Example 1, difference is:
Thermal state ceramic jetting material for longevity type blast furnace of the present invention is represented with weight percentage, and the raw material of described thermal state ceramic jetting material consists of mullite 68%, silicon carbide 15%, and (described super-fine powder is SiO to super-fine powder 6%
2Super-fine powder and α-Al
2O
3The mixture of super-fine powder, SiO when the two mixes
2Super-fine powder and α-Al
2O
3The shared percentage composition of super-fine powder is respectively 20% and 80%), wedding agent (Lafarge cement) 10% and additive 1% (additive is tripoly phosphate sodium STPP, aluminium powder and explosion-proof fiber three's a mixture, and three's blending ratio is 1: 2: 1).
Embodiment 6: substantially the same manner as Example 1, difference is:
Thermal state ceramic jetting material for longevity type blast furnace of the present invention is represented with weight percentage, and the raw material of described thermal state ceramic jetting material consists of mullite 69%, silicon carbide 15%, and (described super-fine powder is SiO to super-fine powder 1%
2Super-fine powder and α-Al
2O
3The mixture of super-fine powder, SiO when the two mixes
2Super-fine powder and α-Al
2O
3The shared percentage composition of super-fine powder is respectively 20% and 80%), wedding agent (Lafarge cement) 10% and additive 5% (additive is tripoly phosphate sodium STPP, aluminium powder and explosion-proof fiber three's a mixture, and three's blending ratio is 1: 2: 1).
Embodiment 7: substantially the same manner as Example 1, difference is:
Thermal state ceramic jetting material for longevity type blast furnace of the present invention is represented with weight percentage, and the raw material of described thermal state ceramic jetting material consists of mullite 70%, silicon carbide 14%, and (described super-fine powder is SiO to super-fine powder 5%
2Super-fine powder and α-Al
2O
3The mixture of super-fine powder, SiO when the two mixes
2Super-fine powder and α-Al
2O
3The shared percentage composition of super-fine powder is respectively 20% and 80%), wedding agent (Lafarge cement) 9% and additive 2% (additive is tripoly phosphate sodium STPP, aluminium powder and explosion-proof fiber three's a mixture, and three's blending ratio is 1: 2: 1).
Embodiment 8: substantially the same manner as Example 1, difference is:
Thermal state ceramic jetting material for longevity type blast furnace of the present invention is represented with weight percentage, and the raw material of described thermal state ceramic jetting material consists of mullite 70%, silicon carbide 12%, and (described super-fine powder is SiO to super-fine powder 8%
2Super-fine powder and α-Al
2O
3The mixture of super-fine powder, SiO when the two mixes
2Super-fine powder and α-Al
2O
3The shared percentage composition of super-fine powder is respectively 20% and 80%), wedding agent (Lafarge cement) 9.9% and additive 0.1% (additive is tripoly phosphate sodium STPP, aluminium powder and explosion-proof fiber three's a mixture, and three's blending ratio is 1: 2: 1).
Claims (9)
1. thermal state ceramic jetting material for longevity type blast furnace, it is characterized in that: represent that with weight percentage the raw material of described thermal state ceramic jetting material consists of mullite 65～70%, silicon carbide 8～15%, super-fine powder 1～10%, wedding agent 5～10% and additive 0.1～5%.
2. thermal state ceramic jetting material for longevity type blast furnace according to claim 1 is characterized in that: the granularity of described mullite is 0～3mm; Al in the described mullite
2O
3The quality percentage composition be 68～70%.
3. thermal state ceramic jetting material for longevity type blast furnace according to claim 1 is characterized in that: described silicon carbide adopts Gansu to produce silicon carbide; Quality percentage composition＞90% of SiC in the described silicon carbide.
4. thermal state ceramic jetting material for longevity type blast furnace according to claim 1 is characterized in that: the granularity of described super-fine powder is 500 orders; Described super-fine powder is SiO
2Super-fine powder and α-Al
2O
3The mixture of super-fine powder.
5. thermal state ceramic jetting material for longevity type blast furnace according to claim 4 is characterized in that: described SiO
2Super-fine powder and α-Al
2O
3Both shared weight percentages were respectively 18～22% and 78～82% when super-fine powder mixed.
6. thermal state ceramic jetting material for longevity type blast furnace according to claim 1 is characterized in that: described wedding agent is a Lafarge cement.
7. thermal state ceramic jetting material for longevity type blast furnace according to claim 1 is characterized in that: described additive is phosphoric acid salt, aluminium powder and explosion-proof fiber three's a mixture.
8. thermal state ceramic jetting material for longevity type blast furnace according to claim 7 is characterized in that: the proportioning ratio when described phosphoric acid salt, aluminium powder and explosion-proof fiber three mix is 1: 2: 1.
9. according to claim 7 or 8 described thermal state ceramic jetting material for longevity type blast furnace, it is characterized in that: described phosphoric acid salt is tripoly phosphate sodium STPP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010179044 CN101857444B (en) | 2010-05-21 | 2010-05-21 | Thermal state ceramic jetting material for longevity type blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010179044 CN101857444B (en) | 2010-05-21 | 2010-05-21 | Thermal state ceramic jetting material for longevity type blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101857444A true CN101857444A (en) | 2010-10-13 |
| CN101857444B CN101857444B (en) | 2013-09-11 |
Family
ID=42943638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010179044 Active CN101857444B (en) | 2010-05-21 | 2010-05-21 | Thermal state ceramic jetting material for longevity type blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101857444B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040386A (en) * | 2010-11-01 | 2011-05-04 | 濮阳濮耐高温材料（集团）股份有限公司 | Torpedo can spouting material and spouting method thereof |
| CN102329127A (en) * | 2011-07-22 | 2012-01-25 | 郑州京华耐火材料实业有限公司 | Integrally-cast ceramic burner of hot-blast stove |
| CN102653472A (en) * | 2012-05-18 | 2012-09-05 | 江苏大学 | Dry-type gunning material for steel refining furnace |
| CN102851422A (en) * | 2012-07-05 | 2013-01-02 | 河北省首钢迁安钢铁有限责任公司 | Blast furnace tuyere combination firebrick repairing method |
| CN103252823A (en) * | 2013-05-13 | 2013-08-21 | 景德镇百特威尔新材料有限公司 | Forming method for super wear-resistant alumina ceramic ball |
| CN106083075A (en) * | 2016-06-06 | 2016-11-09 | 武汉威林科技股份有限公司 | The restorative procedure of blast-furnace shaft upper inner liner wet spray material, its application and blast-furnace shaft upper inner liner |
| CN110615688A (en) * | 2018-06-19 | 2019-12-27 | 宝山钢铁股份有限公司 | Low-cost long-life blast furnace taphole mud sleeve and preparation method thereof |
| CN111574233A (en) * | 2020-05-26 | 2020-08-25 | 中钢洛耐新材料科技有限公司 | Ceramic wear-resistant hot gunning mix and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524825A (en) * | 2003-02-28 | 2004-09-01 | 上海汇集新材料股份有限公司 | Gunning refractory of converter tap hole |
| CN1715237A (en) * | 2004-06-30 | 2006-01-04 | 宝山钢铁股份有限公司 | Hot and wet spray material and construction method using said spray material |
| CN1880263A (en) * | 2006-04-29 | 2006-12-20 | 郑州华西耐火新材料工程有限公司 | Heat insulation high-intensity fiber jetting material for hot-blast stove |
| CN101519311A (en) * | 2009-04-01 | 2009-09-02 | 武汉钢铁(集团)公司 | Magnesia-carbon gunning material for converter or electric furnace |
| CN101555152A (en) * | 2009-05-15 | 2009-10-14 | 佘成明 | Single iron-port blast furnace tapping main channel gunning material and gunning technology |
-
2010
- 2010-05-21 CN CN 201010179044 patent/CN101857444B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524825A (en) * | 2003-02-28 | 2004-09-01 | 上海汇集新材料股份有限公司 | Gunning refractory of converter tap hole |
| CN1715237A (en) * | 2004-06-30 | 2006-01-04 | 宝山钢铁股份有限公司 | Hot and wet spray material and construction method using said spray material |
| CN1880263A (en) * | 2006-04-29 | 2006-12-20 | 郑州华西耐火新材料工程有限公司 | Heat insulation high-intensity fiber jetting material for hot-blast stove |
| CN101519311A (en) * | 2009-04-01 | 2009-09-02 | 武汉钢铁(集团)公司 | Magnesia-carbon gunning material for converter or electric furnace |
| CN101555152A (en) * | 2009-05-15 | 2009-10-14 | 佘成明 | Single iron-port blast furnace tapping main channel gunning material and gunning technology |
Non-Patent Citations (1)
| Title |
|---|
| 《辽宁科技大学硕士学位论文》 20070601 刘继锋 高炉热态喷补料 第1-2，4-8，39，44，48-51，59页 , * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040386B (en) * | 2010-11-01 | 2012-09-26 | 濮阳濮耐高温材料（集团）股份有限公司 | Torpedo can spouting material and spouting method thereof |
| CN102040386A (en) * | 2010-11-01 | 2011-05-04 | 濮阳濮耐高温材料（集团）股份有限公司 | Torpedo can spouting material and spouting method thereof |
| CN102329127A (en) * | 2011-07-22 | 2012-01-25 | 郑州京华耐火材料实业有限公司 | Integrally-cast ceramic burner of hot-blast stove |
| CN102653472B (en) * | 2012-05-18 | 2014-05-28 | 江苏大学 | Dry-type gunning material for steel refining furnace |
| CN102653472A (en) * | 2012-05-18 | 2012-09-05 | 江苏大学 | Dry-type gunning material for steel refining furnace |
| CN102851422A (en) * | 2012-07-05 | 2013-01-02 | 河北省首钢迁安钢铁有限责任公司 | Blast furnace tuyere combination firebrick repairing method |
| CN103252823A (en) * | 2013-05-13 | 2013-08-21 | 景德镇百特威尔新材料有限公司 | Forming method for super wear-resistant alumina ceramic ball |
| CN106083075A (en) * | 2016-06-06 | 2016-11-09 | 武汉威林科技股份有限公司 | The restorative procedure of blast-furnace shaft upper inner liner wet spray material, its application and blast-furnace shaft upper inner liner |
| CN106083075B (en) * | 2016-06-06 | 2018-11-23 | 武汉威林科技股份有限公司 | The restorative procedure of blast-furnace shaft upper inner liner wet spray material, its application and blast-furnace shaft upper inner liner |
| CN110615688A (en) * | 2018-06-19 | 2019-12-27 | 宝山钢铁股份有限公司 | Low-cost long-life blast furnace taphole mud sleeve and preparation method thereof |
| CN110615688B (en) * | 2018-06-19 | 2022-01-14 | 宝山钢铁股份有限公司 | Low-cost long-life blast furnace taphole mud sleeve and preparation method thereof |
| CN111574233A (en) * | 2020-05-26 | 2020-08-25 | 中钢洛耐新材料科技有限公司 | Ceramic wear-resistant hot gunning mix and preparation method thereof |
| CN111574233B (en) * | 2020-05-26 | 2022-04-12 | 中钢洛耐科技股份有限公司 | Ceramic wear-resistant hot gunning mix and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101857444B (en) | 2013-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101857444B (en) | Thermal state ceramic jetting material for longevity type blast furnace | |
| CN105859314B (en) | A kind of smelting molten steel equipment carbon containing gunning refractory and preparation method thereof | |
| CN101792322B (en) | Environment-friendly aqueous long-life self-flowing repairing mix for converter and preparation method thereof | |
| CN107445633A (en) | A kind of liquid grouting material and preparation method and application method for coke oven furnace wall crack hot patching | |
| CN100467426C (en) | Silicon carbide crusting resistant pouring material and preparation method thereof | |
| CN102329137B (en) | Carbon-free alumina-magnesia unburned brick and preparation method and application thereof | |
| CN102173700B (en) | Minimum inflation low heat silicate cement | |
| CN103880454B (en) | The fast dry type anti-explosion refractory castable that a kind of iron notch reworked material is recycled | |
| CN104230354B (en) | A kind of durable type alkalescence gunning refractory and application | |
| CN103408311B (en) | Gunning mix for repairing RH refractory brick | |
| CN104788115A (en) | Fireproof spraying coating for steel ladle working lining and preparation method of fireproof spraying coating | |
| CN102515583B (en) | Method for producing low heat expansive cement | |
| CN102531643A (en) | Gunning lining-making method for steel ladle | |
| CN102807381A (en) | Self-flow type large-area batching mix for revolving furnace and methods for preparing and using self-flow type large-area mix | |
| CN108033795A (en) | High alumina castable for fish torpedo ladle permanent layer | |
| CN101921132B (en) | Lining patching material of iron-smelting blast furnace | |
| CN103539470A (en) | Refractory castable for blast furnace iron runner | |
| CN103508740B (en) | Ramming mass for repairing gap bridge magnesia-alumina spinel bricks of sleeve lime kiln | |
| CN104529495A (en) | Skimming tool and production process | |
| CN104761267A (en) | High-strength wear-resistant plastic material used in circulating fluidized bed boiler | |
| CN100355693C (en) | Heat insulation high-intensity fiber jetting material for hot-blast stove | |
| CN102134165B (en) | Furnace lining of ferrovanadium smelting furnace and preparation method thereof | |
| CN102140035A (en) | Magnesium-chromium high-temperature ceramic soldering material and preparation method thereof | |
| CN105060911B (en) | A kind of converter fettling material and production and preparation method thereof | |
| CN101591182A (en) | The preparation method of abrasion resistant castable in a kind of |
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 |