CN103539470A - Refractory castable for blast furnace iron runner - Google Patents
Refractory castable for blast furnace iron runner Download PDFInfo
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- CN103539470A CN103539470A CN201310515510.8A CN201310515510A CN103539470A CN 103539470 A CN103539470 A CN 103539470A CN 201310515510 A CN201310515510 A CN 201310515510A CN 103539470 A CN103539470 A CN 103539470A
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Abstract
The invention provides a refractory castable for a blast furnace iron runner. The refractory castable is composed of the following components in parts by weight: 40-50 parts of corundum, 8-12 parts of zircon, 8-30 parts of silicon carbide, 5-6 parts of magnesium oxide, 2-6 parts of silica fume, 1-5 parts of calcium aluminate cement, 1-3 parts of boron carbide, 0.2-0.3 part of sodium hexametaphosphate, 0.1-0.2 part of sodium polyacrylate, 3-5 parts of water and 1-10 parts of carbon black. The refractory castable for the blast furnace iron runner has good thermal shock resistance and slag resistance.
Description
Technical field
The invention belongs to technical field of refractory materials, relate in particular to a kind of blast furnace iron runner refractory castable.
Background technology
Compare with qualitative refractory product, the unshape refractory that the refractory castable of take is representative has that technical process is short, production energy consumption and cost is low, easy to use, applied widely, globality and the advantage such as result of use is good, thereby worldwide obtained developing rapidly, its proportion shared in whole refractory materials is more and more higher.In some refractory technology advanced persons' country, the output of unshape refractory has approached the output that has even surpassed setting goods.For example, the ratio that current Japanese unshape refractory output accounts for whole refractory materials has reached 60% left and right; The U.S. be 50% left and right; English, De,Fa Deng state are 40% ~ 50%.Nowadays, refractory castable has been widely used in the high temperature service of the industrial circles such as metallurgy, building materials, electric power, chemical industry, for example, in quality coal in cement kiln systems, has now widely applied the refractory castable of various materials.
Unshape refractory by the granular and powder-material of rational gradation composition and bonding agent, is jointly formed without be shaped and burn till and direct for refractory materials.The essentially consist of unshape refractory is granular and refractory material powdery, according to its service requirements, can be made by various materials, in order to make these refractory materials be combined into integral body, generally all adds the bonding agent of suitable kind and quantity.The kind of unshape refractory is a lot, can classify according to the material of refractory material used, as siliceous, clayey, High-Alumina, magnesia, rhombspar matter, chromium matter, containing zirconium matter etc.General unshape refractory has the features such as preparation process is easy, yield rate is high, heat energy consumption is lower.Meanwhile, during use, there is conformability strong, can be made into firm Integral construction thing.
For example, blast furnace enters the middle and later periods of stove labour, and furnace lining there will be damage in various degree, as furnace shell red heat or cooling stave scaling loss etc.For improving blast furnace work-ing life, improve blast furnace safety coefficient, avoid mishap, need regularly to blast furnace, keep in repair, and long maintenance cycle or too frequently frequency of maintenance are brought impact to the steady running of blast furnace again, are unfavorable for that the natural labor of blast furnace reaches product.Traditional maintenance method needs blowing out, after cool stove, utilizes water system press-in material to fill breakage, because water system press-in material needs long-time baking, affect efficiency, 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 view of this, the deficiency existing for the above prior art, provides the anhydrous mud that is pressed into for a kind of blast furnace.
With the anhydrous mud that is pressed into, comprise aggregate, matrix, bonding agent and additive; Aggregate is comprised of alumine, silicon carbide and zircon, and the add-on of aggregate is 45～55 parts, and granularity is below 0.4mm; Matrix is comprised of silicon powder and magnesium oxide, and the add-on of matrix is 10～25 parts; Bonding agent is liquid phenolic resin, and the add-on of bonding agent is 15～35 parts; Additive is Sodium hexametaphosphate 99, and the add-on of additive is 2～4 parts.
Use above-mentioned blast furnace, only the powder body materials such as aggregate, matrix evenly need be mixed while being pressed into mud with anhydrous, bonding agent is used separately, when construction, in pneumatic mortar machine, add bonding agent, mix, utilize pressurized air for power, the method by mud jacking is directly pressed into maintenance area.Above-mentioned blast furnace is to repair the technology that blast furnace cooling stave gap extends blast furnace campaign with the anhydrous mud that is pressed into, can the in the situation that of blast furnace light maintenance, carry out, shorten servicing time, reduce the maintenance frequency, to blast furnace to stably manufactured, increase output and can play and promote and guaranteeing role.Product tool of the present invention has the following advantages: good fluidity, under high temperature, shrink littlely, and after sclerosis, form solid integral body, greatly improve stopping property.
Embodiment
The technical solution adopted in the present invention is a certain proportion of aggregate, matrix, bonding agent and additive to be mixed to obtain make boiler of power plant High-Alumina high-temperature flame-proof pouring material.Concretely:
With the anhydrous mud that is pressed into, comprise aggregate, matrix, bonding agent and additive; Aggregate is comprised of alumine, silicon carbide and zircon, and the add-on of aggregate is 45～55 parts, and granularity is below 0.4mm; Matrix is comprised of silicon powder and magnesium oxide, and the add-on of matrix is 10～25 parts; Bonding agent is liquid phenolic resin, and the add-on of bonding agent is 15～35; Additive is Sodium hexametaphosphate 99, and the add-on of additive is 2～4.Wherein, in aggregate, the parts by weight of alumine, silicon carbide and zircon are 30～50 parts of alumines, 30～50 parts, silicon carbide, 20～40 parts of zircons; In matrix, silicon powder, magnesian parts by weight are 50～70 parts of silicon powders, 30～50 parts, magnesium oxide.
Below illustrate the anhydrous mud that is pressed into for above-mentioned blast furnace:
Embodiment 1
The anhydrous mud that is pressed into for blast furnace, comprises aggregate, matrix, bonding agent and additive; Aggregate is comprised of alumine, silicon carbide and zircon, and the add-on of aggregate is 45 parts, and granularity is below 0.4mm; Matrix is comprised of silicon powder and magnesium oxide, and the add-on of matrix is 16 parts; Bonding agent is liquid phenolic resin, and the add-on of bonding agent is 35; Additive is Sodium hexametaphosphate 99, and the add-on of additive is 4.Wherein, in aggregate, the parts by weight of alumine, silicon carbide and zircon are 30 parts of alumines, 30 parts, silicon carbide, 40 parts of zircons; In matrix, silicon powder, magnesian parts by weight are 50 parts of silicon powders, 50 parts, magnesium oxide.
Embodiment 2
The anhydrous mud that is pressed into for blast furnace, comprises aggregate, matrix, bonding agent and additive; Aggregate is comprised of alumine, silicon carbide and zircon, and the add-on of aggregate is 51 parts, and granularity is below 0.4mm; Matrix is comprised of silicon powder and magnesium oxide, and the add-on of matrix is 15 parts; Bonding agent is liquid phenolic resin, and the add-on of bonding agent is 30; Additive is Sodium hexametaphosphate 99, and the add-on of additive is 4 parts.Wherein, in aggregate, the parts by weight of alumine, silicon carbide and zircon are 40 parts of alumines, 40 parts, silicon carbide, 20 parts of zircons; In matrix, silicon powder, magnesian parts by weight are 60 parts of silicon powders, 40 parts, magnesium oxide.
Embodiment 3
The anhydrous mud that is pressed into for blast furnace, comprises aggregate, matrix, bonding agent and additive; Aggregate is comprised of alumine, silicon carbide and zircon, and the add-on of aggregate is 55 parts, and granularity is below 0.4mm; Matrix is comprised of silicon powder and magnesium oxide, and the add-on of matrix is 25 parts; Bonding agent is liquid phenolic resin, and the add-on of bonding agent is 18 parts; Additive is Sodium hexametaphosphate 99, and the add-on of additive is 2 parts.Wherein, in aggregate, the parts by weight of alumine, silicon carbide and zircon are 40 parts of alumines, 40 parts, silicon carbide, 20 parts of zircons; In matrix, silicon powder, magnesian parts by weight are 70 parts of silicon powders, 30 parts, magnesium oxide.
As described above, it is only preferred embodiment of the present invention, when not limiting scope of the invention process with this, the simple equivalence of generally doing according to the present patent application the scope of the claims and invention description content changes and modifies, and all still remains within the scope of the patent.
Claims (3)
1. a blast furnace iron runner refractory castable, it is characterized in that: blast furnace iron runner is with refractory castable consisting of by weight ratio: 40 ~ 50 parts, corundum, 8 ~ 12 parts of zircons, 8 ~ 30 parts, silicon carbide, 5 ~ 6 parts, magnesium oxide, 2 ~ 6 parts of SILICA FUME, 1 ~ 5 part of aluminous cement, 1 ~ 3 part of norbide, 0.2 ~ 0.3 part of Sodium hexametaphosphate 99,0.1 ~ 0.2 part of sodium polyacrylate, 1 ~ 10 part of 3 ~ 5 parts, water and carbon black.
2. blast furnace iron runner refractory castable according to claim 1, is characterized in that: corundum is one or more the mixture of arbitrary proportion in plate diamond spar, fused white corundum, fused brown corundum, electric smelting compact alumina, sub-white corundum.
3. blast furnace iron runner refractory castable according to claim 1, is characterized in that: corundum, zircon, silicon carbide mixing post-treatment become coarse aggregate, middle aggregate and fine aggregate, and the size of described coarse aggregate is 5.0～3.0mm; In described middle aggregate, the size of each component is 2.5～1.0mm; The size of described fine aggregate is 0.5～0.4mm; The weight part proportioning of coarse aggregate, middle aggregate and fine aggregate is 35 parts of 30 parts of coarse aggregates, 35 parts, middle aggregate and fine aggregates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310515510.8A CN103539470A (en) | 2013-10-29 | 2013-10-29 | Refractory castable for blast furnace iron runner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310515510.8A CN103539470A (en) | 2013-10-29 | 2013-10-29 | Refractory castable for blast furnace iron runner |
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| CN103539470A true CN103539470A (en) | 2014-01-29 |
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| CN201310515510.8A Pending CN103539470A (en) | 2013-10-29 | 2013-10-29 | Refractory castable for blast furnace iron runner |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803998A (en) * | 2014-02-14 | 2014-05-21 | 汤炼芳 | 1000m<3> blast furnace branch iron runner castable |
| CN104311054A (en) * | 2014-10-08 | 2015-01-28 | 宁夏天纵泓光余热发电技术有限公司 | Compound refractory castable |
| CN104311055B (en) * | 2014-10-08 | 2016-08-24 | 宁夏天纵泓光余热发电技术有限公司 | Ferrovanadium dregs castable refractory |
| CN106116611A (en) * | 2016-06-30 | 2016-11-16 | 河南和成无机新材料股份有限公司 | A kind of main trough of blast furnace working lining hot jetting material and preparation method thereof |
| CN108424154A (en) * | 2018-04-25 | 2018-08-21 | 无锡市宝宜耐火材料有限公司 | Blast furnace iron hook castable and preparation method thereof |
| CN109836138A (en) * | 2019-04-15 | 2019-06-04 | 郑州市瑞沃耐火材料有限公司 | Large and medium-sized blast furnace iron runner castable |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101781A (en) * | 2011-02-22 | 2011-06-22 | 佘成其 | Hot patching material for iron runner |
| CN102910916A (en) * | 2012-09-18 | 2013-02-06 | 通达耐火技术股份有限公司 | Anhydrous press-in slurry used for blast furnace |
-
2013
- 2013-10-29 CN CN201310515510.8A patent/CN103539470A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101781A (en) * | 2011-02-22 | 2011-06-22 | 佘成其 | Hot patching material for iron runner |
| CN102910916A (en) * | 2012-09-18 | 2013-02-06 | 通达耐火技术股份有限公司 | Anhydrous press-in slurry used for blast furnace |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803998A (en) * | 2014-02-14 | 2014-05-21 | 汤炼芳 | 1000m<3> blast furnace branch iron runner castable |
| CN104311054A (en) * | 2014-10-08 | 2015-01-28 | 宁夏天纵泓光余热发电技术有限公司 | Compound refractory castable |
| CN104311055B (en) * | 2014-10-08 | 2016-08-24 | 宁夏天纵泓光余热发电技术有限公司 | Ferrovanadium dregs castable refractory |
| CN106116611A (en) * | 2016-06-30 | 2016-11-16 | 河南和成无机新材料股份有限公司 | A kind of main trough of blast furnace working lining hot jetting material and preparation method thereof |
| CN108424154A (en) * | 2018-04-25 | 2018-08-21 | 无锡市宝宜耐火材料有限公司 | Blast furnace iron hook castable and preparation method thereof |
| CN109836138A (en) * | 2019-04-15 | 2019-06-04 | 郑州市瑞沃耐火材料有限公司 | Large and medium-sized blast furnace iron runner castable |
| 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 |
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Application publication date: 20140129 |