CN102910916A - Anhydrous press-in slurry used for blast furnace - Google Patents
Anhydrous press-in slurry used for blast furnace Download PDFInfo
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- CN102910916A CN102910916A CN 201210344963 CN201210344963A CN102910916A CN 102910916 A CN102910916 A CN 102910916A CN 201210344963 CN201210344963 CN 201210344963 CN 201210344963 A CN201210344963 A CN 201210344963A CN 102910916 A CN102910916 A CN 102910916A
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Abstract
Anhydrous press-in slurry used for a blast furnace is used for repairing the blast furnace in the damping down process through pumping and belongs to the field of a refractory material in inorganic nonmetallic materials. The anhydrous press-in slurry consists of the following materials by weight: 40-60% of aggregates, 5-15% of matrixes, 25-40% of a binding agent and 1-5% of additives, wherein the aggregates can be one of high bauxite, silicon carbide and a carbon material or a composite of the high bauxite, the silicon carbide and the carbon material, and the aggregate size is less than 0.5mm; the matrixes can be one of silica micropowder and binding clay or a composite of the silica micropowder and the binding clay generally; the binding agent can be a liquid phenolic resin; and the additives can be a curing agent and the like. The mixed powder and the binding agent are pressed in a damaged part of a lining of a furnace shell by a grouting machine and then are cured to form a solid compact whole body, thereby avoiding the damage of a water press-in material used for the blast furnace to the carbon lining after production, so as to shorten the overall time, improve the efficiency and ensure the long-time and stable operation of the blast furnace.
Description
Technical field
The invention belongs to the inorganic non-metallic fire resisting material field, relate in particular to a kind of blast furnace cooling stave maintenance refractory materials.
Background technology
Blast furnace enters the middle and later periods of stove labour, and damage in various degree can appear in furnace lining, such as furnace shell red heat or cooling stave scaling loss etc.For improving blast furnace work-ing life, improve the blast furnace safety coefficient, avoid mishap, need regularly keep in repair blast furnace, and long maintenance cycle or frequency of maintenance are too frequently brought impact to the steady running of blast furnace again, are unfavorable for that the natural labor of blast furnace reaches product.The traditional maintenance method needs blowing out, behind the cool stove, utilizes the water system press-in material that breakage is filled, because the water system press-in material needs long-time baking, affects efficient, at high temperature contraction ratio is larger simultaneously, do not become integral body, result of use is general, causes frequent maintenance.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides the anhydrous mud that is pressed into of a kind of blast furnace, it is comprised of aggregate, matrix, wedding agent and additive; Aggregate can be a kind of or compound use in alumine, silicon carbide, the carbon materials, and its add-on is 40～60wt%, and granularity is below 0.5mm; Matrix is generally selected silicon powder and bonding clay fine powder separately or compound use, and its add-on is 5～15wt%; Wedding agent is liquid phenolic resin, and its add-on is 25～40wt%; Additive is stiffening agent, solidifying agent etc., adds, and add-on is at 1～5wt%.
Aluminium content is greater than 45wt% in the alumine used in the present invention, and silicon carbide can be goods or the material of any silicon carbide-containing, and carbon materials is goods or the material of any carbon containing.The wedding agent liquid phenolic resin is yellow liquid, and is water insoluble, and proportion is 1.10～1.30g/cm
3Additive can be selected tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 or hexamethylenetetramine etc.
The present invention anhydrously only needs the powder body materials such as aggregate, matrix are evenly mixed when being pressed into mud and producing by what above proportioning formed, wedding agent uses separately, when construction, in pneumatic mortar machine, add wedding agent, mix, utilize pressurized air to be power, the method by mud jacking directly is pressed into maintenance area and gets final product.
The anhydrous mud that is pressed into of the present invention is as repairing the blast furnace cooling stave slit prolongation technology of blast furnace campaign, can shorten servicing time in the situation that the blast furnace light maintenance is carried out, reduce the maintenance frequency, to blast furnace to stably manufactured, increase output and then can play and promote and guaranteeing role.Product of the present invention has following advantage:
1) can satisfy quick baking, can come into operation immediately.
2) good fluidity has preferably with the carbon brick cooling stave and to be combined.
3) contraction is little under the high temperature, forms solid integral body after the sclerosis, greatly improves stopping property.
4) because the introducing of resin has certain carbon residue, by silicon carbide and carbon containing class material, improve the anhydrous thermal conductivity that is pressed into mud in addition, improve the thermo-efficiency of carbon brick and cooling stave.
5) shorten maintenance duration, save refractory materials, reduce recondition expense, prolong furnace lining work-ing life.
The present invention utilizes liquid phenolic resin as wedding agent, and its technical characteristics is that carbon residue is high, and is water insoluble, so that the mud that is pressed into of its combination has anhydrous performance, can at high temperature construct, satisfy quick baking, the rear formation carbochain of being heated simultaneously, make material form an integral body, shrink littlely, between cooling stave and carbon brick, can not form the space, because the introducing of carbon, improve the thermal conductivity of material, can effectively reduce the temperature of carbon brick.
Embodiment
Embodiment 1
The anhydrous mud A that is pressed into of a kind of blast furnace consists of the following composition:
Embodiment 2
The anhydrous mud B that is pressed into of a kind of blast furnace consists of the following composition:
Embodiment 3
The anhydrous mud C that is pressed into of a kind of blast furnace consists of the following composition:
Claims (4)
1. anhydrous mud that is pressed into of blast furnace, it is characterized in that: this anhydrous mud that is pressed into is comprised of aggregate, matrix, wedding agent and additive; Aggregate is one or more in alumine, silicon carbide, the carbon materials, and its add-on is 40～60wt%; Matrix is silicon powder and/or bonding clay, and its add-on is 5～15wt%; Wedding agent is liquid phenolic resin, and its add-on is 25～40wt%; Additive is stiffening agent or solidifying agent, adds, and add-on is at 1～5wt%.
2. the anhydrous mud that is pressed into as claimed in claim 1, it is characterized in that: aggregate size is less than 0.5mm, and aluminium content is greater than 45wt% in the alumine, and silicon carbide is goods or the material of any silicon carbide-containing, and carbon materials is goods or the material of any carbon containing.
3. the anhydrous mud that is pressed into as claimed in claim 1 or 2, it is characterized in that: the wedding agent liquid phenolic resin is yellow liquid, and is water insoluble, proportion is 1.10～1.30g/cm
3
4. such as the described anhydrous mud that is pressed into of claim 1-3, it is characterized in that: additive is tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 or hexamethylenetetramine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210344963 CN102910916A (en) | 2012-09-18 | 2012-09-18 | Anhydrous press-in slurry used for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210344963 CN102910916A (en) | 2012-09-18 | 2012-09-18 | Anhydrous press-in slurry used for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102910916A true CN102910916A (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210344963 Pending CN102910916A (en) | 2012-09-18 | 2012-09-18 | Anhydrous press-in slurry used for blast furnace |
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| CN (1) | CN102910916A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130522A (en) * | 2013-03-22 | 2013-06-05 | 北京市京冶源建筑材料有限公司 | Blast furnace on-line anhydrous carbon injection material and application method thereof |
| CN103484581A (en) * | 2013-09-18 | 2014-01-01 | 南通宝钢钢铁有限公司 | Coal gas leakage repairing method for blast-furnace hearth |
| CN103539470A (en) * | 2013-10-29 | 2014-01-29 | 宁夏天纵泓光余热发电技术有限公司 | Refractory castable for blast furnace iron runner |
| CN103553677A (en) * | 2013-10-31 | 2014-02-05 | 宁夏天纵泓光余热发电技术有限公司 | Anhydrous pressed-in mud for blast furnace |
| CN103833393A (en) * | 2014-01-08 | 2014-06-04 | 长兴明晟冶金炉料有限公司 | Anhydrous injection slurry |
| CN105777145A (en) * | 2015-10-29 | 2016-07-20 | 长兴云峰炉料有限公司 | Environment-friendly low-carbon injection mix |
| CN106348769A (en) * | 2016-08-27 | 2017-01-25 | 中冶武汉冶金建筑研究院有限公司 | Silicon carbide buffer mud for blast furnace buffer seams |
| TWI650299B (en) * | 2018-01-12 | 2019-02-11 | 中國鋼鐵股份有限公司 | Blast furnace grouting material |
| CN113912403A (en) * | 2021-09-06 | 2022-01-11 | 海城利尔麦格西塔材料有限公司 | Low-cost grouting material for back of cooling wall of blast furnace |
-
2012
- 2012-09-18 CN CN 201210344963 patent/CN102910916A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130522A (en) * | 2013-03-22 | 2013-06-05 | 北京市京冶源建筑材料有限公司 | Blast furnace on-line anhydrous carbon injection material and application method thereof |
| CN103130522B (en) * | 2013-03-22 | 2015-10-28 | 北京精冶源新材料股份有限公司 | A kind of online anhydrous carbon element press-in material of blast furnace and application method |
| CN103484581A (en) * | 2013-09-18 | 2014-01-01 | 南通宝钢钢铁有限公司 | Coal gas leakage repairing method for blast-furnace hearth |
| CN103539470A (en) * | 2013-10-29 | 2014-01-29 | 宁夏天纵泓光余热发电技术有限公司 | Refractory castable for blast furnace iron runner |
| CN103553677A (en) * | 2013-10-31 | 2014-02-05 | 宁夏天纵泓光余热发电技术有限公司 | Anhydrous pressed-in mud for blast furnace |
| CN103833393A (en) * | 2014-01-08 | 2014-06-04 | 长兴明晟冶金炉料有限公司 | Anhydrous injection slurry |
| CN103833393B (en) * | 2014-01-08 | 2015-08-19 | 长兴明晟冶金炉料有限公司 | Anhydrous press-in mud |
| CN105777145A (en) * | 2015-10-29 | 2016-07-20 | 长兴云峰炉料有限公司 | Environment-friendly low-carbon injection mix |
| CN106348769A (en) * | 2016-08-27 | 2017-01-25 | 中冶武汉冶金建筑研究院有限公司 | Silicon carbide buffer mud for blast furnace buffer seams |
| CN106348769B (en) * | 2016-08-27 | 2019-07-12 | 中冶武汉冶金建筑研究院有限公司 | A kind of silicon carbide buffering mud for blast furnace buffering seam |
| TWI650299B (en) * | 2018-01-12 | 2019-02-11 | 中國鋼鐵股份有限公司 | Blast furnace grouting material |
| CN113912403A (en) * | 2021-09-06 | 2022-01-11 | 海城利尔麦格西塔材料有限公司 | Low-cost grouting material for back of cooling wall of blast furnace |
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Application publication date: 20130206 |
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| RJ01 | Rejection of invention patent application after publication |