CN101973776A - Production method of ladle permanent liner casting material - Google Patents
Production method of ladle permanent liner casting material Download PDFInfo
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- CN101973776A CN101973776A CN 201010538499 CN201010538499A CN101973776A CN 101973776 A CN101973776 A CN 101973776A CN 201010538499 CN201010538499 CN 201010538499 CN 201010538499 A CN201010538499 A CN 201010538499A CN 101973776 A CN101973776 A CN 101973776A
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Abstract
The invention discloses a production method of a ladle permanent liner casting material. The ladle permanent liner casting material comprises the following components of 35-55 parts of common bauxite and recovered crushed brick, 10-15 parts of common bauxite, 15-25 parts of high bauxite fine powder, 2-8 parts of silicon dioxide micro powder, 2-10 parts of alumina micro powder, 2-10 parts of magnesia fine powder, 1 part of organic fiber, 1 part of dispersant and 5-10 parts of water. The production method comprises the following steps of: sorting and crushing the common bauxite and recovered crushed bricks; transporting the granular materials into a stirrer to be prestirred; after transporting the rest powder into the stirrer to be stirred, adding the rest powder into the premixed granular materials to be continuously stirred; and obtaining the finished casting material. The invention has the advantages of realizing the reuse of waste fire resisting materials and greatly reducing production cost per ton steel because the common bauxite and the recovered crushed bricks are used as main materials. The ladle permanent liner casting material has sufficient pressure resisting strength and bend-resisting strength at production temperature, has certain erosion resistance and ensures ladle smelting safety.
Description
Technical field
The present invention relates to the ladle permanent lining mould material, especially relate to a kind of production method of low-cost ladle permanent lining mould material.
Background technology
From research mould material paper and the actual mould material of having delivered of using, the material that the ladle permanent lining mould material adopts has corundum matter, spinel, high alumina matter, mullite etc., adopt above-mentioned material as the ladle permanent lining mould material, not only increase material cost and ton steel cost, and caused the significant wastage of resource.From the related application of having announced, research and development such as the reclaimed materials that adopts useless brick ladle permanent linings is also arranged, the wedding agent of selecting for use is a cement, though this permanent liner has guaranteed working strength to a certain extent, but, exist the danger that ladle is worn bag because cement at high temperature causes the mould material mis-behave easily.
Summary of the invention
The object of the present invention is to provide the production method of the ladle permanent lining mould material that a kind of cost is low, performance is safe and reliable.
For achieving the above object, the present invention can take following technical proposals:
The production method of ladle permanent lining mould material of the present invention, it is formulated according to following weight parts by raw material conventional aluminium alumina, the useless brick of recovery, alumine fine powder, fine silica powder, alumina powder, magnesia powder, organic fibre, dispersion agent and water:
Proportioning raw materials: 35～55 parts of the useless bricks of conventional aluminium alumina+recovery, wherein 15～25 of particle diameter 10～6mm parts, 10～15 parts of 6mm＞particle diameter 〉=3mm, 10～15 parts of 3mm＞particle diameter 〉=1mm; 10～15 parts in conventional aluminium alumina, particle diameter≤1mm; 15～25 parts of alumine fine powders, particle diameter＜0.088mm; 2～8 parts of fine silica powders, particle diameter＜0.088mm; 2～10 parts of alumina powders, particle diameter＜0.088mm; 2～10 parts of magnesia powders, particle diameter＜0.088mm; 1 part of organic fibre; 1 part of dispersion agent; 5～10 parts in water;
Production method:
The first step, with the conventional aluminium alumina with reclaim useless fragment of brick material and press the mixed of 1:1, the fragmentation of selection back, standby according to particle diameter 10～6mm, 6mm＞particle diameter 〉=3mm, 3mm＞particle diameter 〉=1mm classification; Broken purer conventional aluminium alumina particle, particle diameter≤1mm is standby;
Second step was delivered to the conventional aluminium alumina particle material of the particulate material after the first step classification and particle diameter≤1mm in the stirrer according to said ratio and stirs in advance, and the time is 3～5 minutes;
The 3rd goes on foot, and alumine fine powder, fine silica powder, alumina powder, magnesia powder, organic fibre, dispersion agent and water is delivered in the stirrer by said ratio stirs, and the time is 8～15 minutes;
In the 4th step, the 3rd powder that mix of step joined to continue to stir in the particulate material that second step sneaked out in advance can obtain the finished product mould material in 8～15 minutes.
Described dispersion agent is tripoly phosphate sodium STPP or Sodium hexametaphosphate 99.
The invention has the advantages that this mould material with conventional aluminium alumina (alumina content is lower than 55%) with reclaim useless brick as major ingredient, has realized the utilization again of waste refractory materials, save energy has reduced the cost and the ton steel production cost of mould material significantly; Adopt the combination of fine silica powder+alumina powder+magnesia powder, can guarantee that again mould material has enough withstand voltage and folding strengths under production temperature (1200 ℃), this mould material has certain resistance to fouling simultaneously, has guaranteed the smelting safety of ladle.
The physical and chemical index of mould material of the present invention is for reaching: after the 110 ℃ * 24h oven dry, and compressive strength＞40Mpa, folding strength＞8Mpa.
Embodiment
Embodiment 1:
The production method of ladle permanent lining mould material of the present invention, it is to be prepared from according to following weight parts proportioning and method by raw material conventional aluminium alumina, the useless brick of recovery, alumine fine powder, fine silica powder, alumina powder, magnesia powder, organic fibre, dispersion agent and water:
Proportioning: give up 45 parts of bricks (ratio between the two is 1:1) of conventional aluminium alumina+recovery, wherein 15 of particle diameter 10～6mm parts, 15 parts of 6mm＞particle diameter 〉=3mm, 15 parts of 3mm＞particle diameter 〉=1mm; 10 parts in conventional aluminium alumina, particle diameter≤1mm; 20 parts of the alumine fine powders of particle diameter＜0.088mm; 6 parts of the fine silica powders of particle diameter＜0.088mm; 6 parts of the alumina powders of particle diameter＜0.088mm; 8 parts of the magnesia powders of particle diameter＜0.088mm; 1 part of organic fibre; 1 part of Sodium hexametaphosphate 99 dispersion agent; 8 parts in water.
Production method:
The first step with the mixed of the useless fragment of brick material of conventional aluminium alumina and recovery according to 1:1, is directly carried out fragmentation after the simple selection, and is prepared burden according to above-mentioned particle diameter and weight part; Standby according to above-mentioned particle diameter and the broken pure conventional aluminium alumina particle material of weight part again;
Second goes on foot, and above-mentioned particulate material is delivered in the stirrer stirs in advance, and the time is 3～5 minutes;
The 3rd goes on foot, and above-mentioned alumine fine powder, fine silica powder, alumina powder part, magnesia powder, organic fibre, tripoly phosphate sodium STPP dispersion agent and water is delivered in the stirrer stirs, and the time is 8～15 minutes;
In the 4th step, the 3rd powder that mix of step joined to continue to stir in the particulate material that second step sneaked out in advance can obtain the finished product mould material in 8～15 minutes;
In the 5th step, above-mentioned finished product material is packed, deposited in batches by processing sequence; By batch above-mentioned finished product material being carried out physical index check, its index is qualified (after the 110 ℃ * 24h oven dry, when compressive strength＞40Mpa, folding strength＞8Mpa), can be put in storage, transport outward.
Embodiment 2:
The production method of ladle permanent lining mould material of the present invention, it is to be prepared from according to following weight parts proportioning and method by raw material conventional aluminium alumina, the useless brick of recovery, alumine fine powder, fine silica powder, alumina powder, magnesia powder, organic fibre, dispersion agent and water:
Proportioning: give up 44 parts of bricks (ratio between the two is 1:1) of conventional aluminium alumina+recovery, wherein 19 of particle diameter 10～6mm parts, 13 parts of 6mm＞particle diameter 〉=3mm, 12 parts of 3mm＞particle diameter 〉=1mm; 12 parts in conventional aluminium alumina, particle diameter≤1mm; 20 parts of the alumine fine powders of particle diameter＜0.088mm; 6 parts of the fine silica powders of particle diameter＜0.088mm; 6 parts of the alumina powders of particle diameter＜0.088mm; 8 parts of the magnesia powders of particle diameter＜0.088mm; 1 part of organic fibre; 1 part of Sodium hexametaphosphate 99 dispersion agent; 10 parts in water.
Production method: with embodiment 1.
Embodiment 3:
The production method of ladle permanent lining mould material of the present invention, it is to be prepared from according to following weight parts proportioning and method by raw material conventional aluminium alumina, the useless brick of recovery, alumine fine powder, fine silica powder, alumina powder, magnesia powder, organic fibre, dispersion agent and water:
Proportioning: give up 35 parts of bricks (ratio between the two is 1:1) of conventional aluminium alumina+recovery, wherein 15 of particle diameter 10～6mm parts, 10 parts of 6mm＞particle diameter 〉=3mm, 10 parts of 3mm＞particle diameter 〉=1mm; 10 parts in conventional aluminium alumina, particle diameter≤1mm; 15 parts of the alumine fine powders of particle diameter＜0.088mm; 2 parts of the fine silica powders of particle diameter＜0.088mm; 2 parts of the alumina powders of particle diameter＜0.088mm; 2 parts of the magnesia powders of particle diameter＜0.088mm; 1 part of organic fibre; 1 part of Sodium hexametaphosphate 99 dispersion agent; 5 parts in water.
Production method: with embodiment 1.
Embodiment 4:
The production method of ladle permanent lining mould material of the present invention, it is to be prepared from according to following weight parts proportioning and method by raw material conventional aluminium alumina, the useless brick of recovery, alumine fine powder, fine silica powder, alumina powder, magnesia powder, organic fibre, dispersion agent and water:
Proportioning: give up 55 parts of bricks (ratio between the two is 1:1) of conventional aluminium alumina+recovery, wherein 25 of particle diameter 10～6mm parts, 15 parts of 6mm＞particle diameter 〉=3mm, 15 parts of 3mm＞particle diameter 〉=1mm; 15 parts in conventional aluminium alumina, particle diameter≤1mm; 25 parts of the alumine fine powders of particle diameter＜0.088mm; 8 parts of the fine silica powders of particle diameter＜0.088mm; 10 parts of the alumina powders of particle diameter＜0.088mm; 10 parts of the magnesia powders of particle diameter＜0.088mm; 1 part of organic fibre; 1 part of Sodium hexametaphosphate 99 dispersion agent; 10 parts in water.
Production method: with embodiment 1.
Claims (2)
1. the production method of a ladle permanent lining mould material is characterized in that: it be by raw material conventional aluminium alumina, to reclaim useless brick, alumine fine powder, fine silica powder, alumina powder, magnesia powder, organic fibre, dispersion agent and water formulated according to following weight parts:
Proportioning raw materials: 35～55 parts of the useless bricks of conventional aluminium alumina+recovery, wherein 15～25 of particle diameter 10～6mm parts, 10～15 parts of 6mm＞particle diameter 〉=3mm, 10～15 parts of 3mm＞particle diameter 〉=1mm; 10～15 parts in conventional aluminium alumina, particle diameter≤1mm; 15～25 parts of alumine fine powders, particle diameter＜0.088mm; 2～8 parts of fine silica powders, particle diameter＜0.088mm; 2～10 parts of alumina powders, particle diameter＜0.088mm; 2～10 parts of magnesia powders, particle diameter＜0.088mm; 1 part of organic fibre; 1 part of dispersion agent; 5～10 parts in water;
Production method:
The first step, with the conventional aluminium alumina with reclaim useless fragment of brick material and press the mixed of 1:1, the fragmentation of selection back, standby according to particle diameter 10～6mm, 6mm＞particle diameter 〉=3mm, 3mm＞particle diameter 〉=1mm classification; Broken purer conventional aluminium alumina particle, particle diameter≤1mm is standby;
Second step was delivered to the conventional aluminium alumina particle material of the particulate material after the first step classification and particle diameter≤1mm in the stirrer according to said ratio and stirs in advance, and the time is 3～5 minutes;
The 3rd goes on foot, and alumine fine powder, fine silica powder, alumina powder, magnesia powder, organic fibre, dispersion agent and water is delivered in the stirrer by said ratio stirs, and the time is 8～15 minutes;
In the 4th step, the 3rd powder that mix of step joined to continue to stir in the particulate material that second step sneaked out in advance can obtain the finished product mould material in 8～15 minutes.
2. the production method of ladle permanent lining mould material according to claim 1 is characterized in that: described dispersion agent is tripoly phosphate sodium STPP or Sodium hexametaphosphate 99.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010538499 CN101973776B (en) | 2010-11-10 | 2010-11-10 | Production method of ladle permanent liner casting material |
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| CN 201010538499 CN101973776B (en) | 2010-11-10 | 2010-11-10 | Production method of ladle permanent liner casting material |
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| CN101973776A true CN101973776A (en) | 2011-02-16 |
| CN101973776B CN101973776B (en) | 2012-12-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320843A (en) * | 2011-06-24 | 2012-01-18 | 郑州振东耐磨材料有限公司 | Method for producing ladle joint material by utilizing waste corundum bricks |
| CN103396134A (en) * | 2013-07-30 | 2013-11-20 | 中冶武汉冶金建筑研究院有限公司 | Iron runner casting material using waste alumino-silicon-carbide carbon bricks as aggregate |
| CN114213108A (en) * | 2021-12-31 | 2022-03-22 | 偃师中岳耐火材料有限公司 | Microporous lightweight castable for permanent lining of steel ladle and preparation method thereof |
| CN116199504A (en) * | 2023-03-17 | 2023-06-02 | 中铸新材工业（江苏）有限公司 | Refractory castable capable of being baked quickly and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH03197369A (en) * | 1989-12-26 | 1991-08-28 | Shinagawa Refract Co Ltd | High alumina casting material |
| CN101028980A (en) * | 2006-11-08 | 2007-09-05 | 河南红旗炉料有限公司 | Multifunctional steel-pack batch |
| CN101157562A (en) * | 2007-09-21 | 2008-04-09 | 郑州荣达工矿集团有限公司 | Corundum ladle seat brick casting material |
| CN101747063A (en) * | 2008-11-27 | 2010-06-23 | 郑州东方三力耐火材料有限公司 | Aluminium-magnesia carbon brick and preparation method thereof |
| CN101863671A (en) * | 2010-05-07 | 2010-10-20 | 武汉钢铁(集团)公司 | Slag adhesion resistant gunning refractory for converter |
-
2010
- 2010-11-10 CN CN 201010538499 patent/CN101973776B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03197369A (en) * | 1989-12-26 | 1991-08-28 | Shinagawa Refract Co Ltd | High alumina casting material |
| CN101028980A (en) * | 2006-11-08 | 2007-09-05 | 河南红旗炉料有限公司 | Multifunctional steel-pack batch |
| CN101157562A (en) * | 2007-09-21 | 2008-04-09 | 郑州荣达工矿集团有限公司 | Corundum ladle seat brick casting material |
| CN101747063A (en) * | 2008-11-27 | 2010-06-23 | 郑州东方三力耐火材料有限公司 | Aluminium-magnesia carbon brick and preparation method thereof |
| CN101863671A (en) * | 2010-05-07 | 2010-10-20 | 武汉钢铁(集团)公司 | Slag adhesion resistant gunning refractory for converter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320843A (en) * | 2011-06-24 | 2012-01-18 | 郑州振东耐磨材料有限公司 | Method for producing ladle joint material by utilizing waste corundum bricks |
| CN103396134A (en) * | 2013-07-30 | 2013-11-20 | 中冶武汉冶金建筑研究院有限公司 | Iron runner casting material using waste alumino-silicon-carbide carbon bricks as aggregate |
| CN114213108A (en) * | 2021-12-31 | 2022-03-22 | 偃师中岳耐火材料有限公司 | Microporous lightweight castable for permanent lining of steel ladle and preparation method thereof |
| CN116199504A (en) * | 2023-03-17 | 2023-06-02 | 中铸新材工业（江苏）有限公司 | Refractory castable capable of being baked quickly and preparation method thereof |
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| CN101973776B (en) | 2012-12-12 |
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