CN104692813A - Aluminum-magnesium composite ramming material for medium-frequency induction furnaces - Google Patents
Aluminum-magnesium composite ramming material for medium-frequency induction furnaces Download PDFInfo
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- CN104692813A CN104692813A CN201510054600.0A CN201510054600A CN104692813A CN 104692813 A CN104692813 A CN 104692813A CN 201510054600 A CN201510054600 A CN 201510054600A CN 104692813 A CN104692813 A CN 104692813A
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Abstract
The invention relates to an aluminum-magnesium composite ramming material for medium-frequency induction furnaces, which is prepared from the following components in parts by weight: 30-50 parts of glass kiln waste corundum brick, 35-60 parts of cement kiln waste castable, 5-15 parts of magnesium scrap brick and 3-7 parts of high-activity alpha-Al2O3 powder binder. The glass kiln waste corundum brick is composed of the following components in parts by weight: 5-15 parts of powder with the particle size of 6-3mm, 5-15 parts of powder with the particle size of 3-1mm, 5-15 parts of powder with the particle size of 1-0mm and 5-15 parts of 200-mesh fine powder. The cement kiln waste castable is composed of the following components in parts by weight: 10-30 parts of powder with the particle size of 6-3mm, 5-25 parts of powder with the particle size of 3-1mm and 5-25 parts of powder with the particle size of 1-0mm. The particle size of the waste magnesium scrap brick is 325 meshes. By using the glass kiln waste corundum brick, cement kiln waste castable and magnesium scrap brick, the ramming material implements recovery of the waste refractory materials and solves the problems of abundant sedimentation and soil pollution caused by the waste refractory materials. The thermal shock stability and scouring resistance are obviously enhanced, the problems of furnace lining cracking, short service life and the like are reduced, and thus, the ramming material satisfies the smelting demands.
Description
Technical field
The present invention relates to the medium-frequency induction furnace magnalium compound ramming mass of ferrous metallurgy and the use of nonferrous metallurgy field.
Background technology
Medium-frequency induction furnace is important branch in induction furnace, due to its there is efficient, energy-conservation, low stain, the reason such as easy and simple to handle is widely applied in steel-making, coloured melting etc.Present domestic and international widely used Medium frequency induction fire proof material of furnace lining is mainly based on magnesia, and magnesite refractory is that topmost refractory materials is applied in metallurgical industry.It is strong because the thermograde in medium-frequency induction furnace Working environment with furnace lining material is large, fire proof material of furnace lining is subject to molten metal induction stirring ability in rapid heat cycle, stove repeatedly, the features such as machinery deteriorates can be produced to fire proof material of furnace lining, magnesia fire proof material of furnace lining traditional in recent years, because of its reason such as thermal shock resistance and anti-scour property is poor, furnace lining cracking, the life-span is low in use, smelting demand can not be met.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of medium-frequency induction furnace magnalium compound ramming mass, replacement take magnesia as traditional magnesite refractory of body material, thus make Project Product not only achieve the recycling of waste refractory materials, and ensured the quality of product, thermal shock resistance, corrosion-resistant property have very large lifting, solves the problems such as furnace lining ftractures, the life-span is low.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of medium-frequency induction furnace magnalium compound ramming mass, is made up of by weight ratio following compositions: glass furnace gives up corundum brick 30-50 part, and cement kiln gives up mould material 35-60 part, useless magnesium brick 5-15 part, high reactivity ɑ-Al
2o
3powder bonding agent 3-7 part.
Described glass furnace gives up corundum brick size composition with parts by weight: 6-3mm 5-15 part, 3-1mm 5-15 part, 1-0 ㎜ 5-15 part, 200 order fine powder 5-15 parts.
Described cement kiln discards mould material size composition with parts by weight: 6-3mm10-30 part, 3-1mm5-25 part, 1-0 ㎜ 5-25 part.
Described discarded magnesium brick granularity is 325 orders.
Described medium-frequency induction furnace magnalium compound ramming mass finished product physical and chemical index is:
Compared with prior art, the invention has the beneficial effects as follows:
1. the present invention discards corundum brick by glass furnace, mould material discarded by cement kiln, the application of discarded magnesium brick, not only achieves waste resistant material and recycles, and solves waste resistant material and deposit in a large number, the problem of contaminated land.
2. thermal shock resistance of the present invention and anti-scour property have remarkable lifting, decrease the problems such as furnace lining ftractures, the life-span is low, meet smelting demand.
Embodiment
Below in conjunction with embodiment, the present invention is further described:
Following examples describe the present invention.These embodiments are only be described optimum implementation of the present invention, do not limit scope of the present invention.
Embodiment 1
A kind of medium-frequency induction furnace magnalium compound ramming mass, is made up of by weight ratio following compositions: glass furnace gives up corundum brick (Al
2o
3>=92.0%, Fe
2o
3≤ 0.5%) 30 parts, cement kiln gives up mould material (Al
2o
3>=90.0%, SiO
2≤ 6%) 55 parts, useless magnesium brick (MgO>=91.0%, CaO≤3.0%, SiO
2≤ 2.0%) 5 parts, high reactivity ɑ-Al
2o
3powder bonding agent 4 parts.
Described glass furnace gives up corundum brick size composition with parts by weight: 6-3mm 15 parts, 3-1mm 10 parts, 1-0 ㎜ 10 parts, 200 order fine powders 5 parts.
Described cement kiln discards mould material size composition with parts by weight: 6-3mm 20 parts, 3-1mm 15 parts, 1-0 ㎜ 10 parts.
Described discarded magnesium brick granularity is 325 orders.
By above-mentioned granularity raw material according to proportioning and high reactivity ɑ-Al
2o
3powder bonding agent is uniformly mixed, and finished product packs.
Above-mentioned ramming mass finished product physical and chemical index is:
Embodiment 2
A kind of medium-frequency induction furnace magnalium compound ramming mass, is made up of by weight ratio following compositions: glass furnace gives up corundum brick (Al
2o
3>=92.0%, Fe
2o
3≤ 0.5%) 40 parts, cement kiln gives up mould material (Al
2o
3>=90.0%, SiO
2≤ 6%) 60 parts, useless magnesium brick (MgO>=91.0%, CaO≤3.0%, SiO
2≤ 2.0%) 10 parts, high reactivity ɑ-Al
2o
3powder bonding agent 5 parts.
Described glass furnace gives up corundum brick size composition with parts by weight: 6-3mm 5 parts, 3-1mm 10 parts, 1-0 ㎜ 15 parts, 200 order fine powders 15 parts.
Described cement kiln discards mould material size composition with parts by weight: 6-3mm 30 parts, 3-1mm 25 parts, 1-0 ㎜ 5 parts.
Described discarded magnesium brick granularity is 325 orders.
By above-mentioned granularity raw material according to proportioning and high reactivity ɑ-Al
2o
3powder bonding agent is uniformly mixed, and finished product packs.
Above-mentioned ramming mass finished product physical and chemical index is:
Embodiment 3
A kind of medium-frequency induction furnace magnalium compound ramming mass, is made up of by weight ratio following compositions: glass furnace gives up corundum brick (Al
2o
3>=92.0%, Fe
2o
3≤ 0.5%) 50 parts, cement kiln gives up mould material (Al
2o
3>=90.0%, SiO
2≤ 6%) 35 parts, useless magnesium brick (MgO>=91.0%, CaO≤3.0%, SiO
2≤ 2.0%) 15 parts, high reactivity ɑ-Al
2o
3powder bonding agent 6 parts.
Described glass furnace gives up corundum brick size composition with parts by weight: 6-3mm 10 parts, 3-1mm 15 parts, 1-0 ㎜ 5 parts, 200 order fine powders 15 parts.
Described cement kiln discards mould material size composition with parts by weight: 6-3mm 25 parts, 3-1mm 15 parts, 1-0 ㎜ 10 parts.
Described discarded magnesium brick granularity is 325 orders.
By above-mentioned granularity raw material according to proportioning and high reactivity ɑ-Al
2o
3powder bonding agent is uniformly mixed, and finished product packs.
Above-mentioned ramming mass finished product physical and chemical index is:
。
Claims (5)
1. a medium-frequency induction furnace magnalium compound ramming mass, is characterized in that, be made up of by weight ratio following compositions: glass furnace gives up corundum brick 30-50 part, and cement kiln gives up mould material 35-60 part, useless magnesium brick 5-15 part, high reactivity ɑ-Al
2o
3powder bonding agent 3-7 part.
2. a kind of medium-frequency induction furnace magnalium compound ramming mass according to claim 1, it is characterized in that, described glass furnace gives up corundum brick size composition with parts by weight: 6-3mm 5-15 part, 3-1mm 5-15 part, 1-0 ㎜ 5-15 part, 200 order fine powder 5-15 parts.
3. a kind of medium-frequency induction furnace magnalium compound ramming mass according to claim 1, it is characterized in that, described cement kiln discards mould material size composition with parts by weight: 6-3mm10-30 part, 3-1mm5-25 part, 1-0 ㎜ 5-25 part.
4. a kind of medium-frequency induction furnace magnalium compound ramming mass according to claim 1, it is characterized in that, described discarded magnesium brick granularity is 325 orders.
5. a kind of medium-frequency induction furnace magnalium compound ramming mass according to claim 1, is characterized in that, described medium-frequency induction furnace magnalium compound ramming mass finished product physical and chemical index is:
。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054600.0A CN104692813A (en) | 2015-02-02 | 2015-02-02 | Aluminum-magnesium composite ramming material for medium-frequency induction furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054600.0A CN104692813A (en) | 2015-02-02 | 2015-02-02 | Aluminum-magnesium composite ramming material for medium-frequency induction furnaces |
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| Publication Number | Publication Date |
|---|---|
| CN104692813A true CN104692813A (en) | 2015-06-10 |
Family
ID=53340413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510054600.0A Pending CN104692813A (en) | 2015-02-02 | 2015-02-02 | Aluminum-magnesium composite ramming material for medium-frequency induction furnaces |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107954730A (en) * | 2017-12-11 | 2018-04-24 | 攀枝花钢城集团有限公司 | Intermediate frequency furnace converter nose dry type ramming material and preparation method thereof |
| CN109437939A (en) * | 2018-12-30 | 2019-03-08 | 河南新拓耐火材料有限公司 | A kind of fire clay and preparation method thereof |
| CN112125682A (en) * | 2020-08-21 | 2020-12-25 | 宁波长振铜业有限公司 | Furnace striking material for melting channel of regenerative brass power frequency induction furnace and use method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962551A (en) * | 2006-11-24 | 2007-05-16 | 辽宁中兴矿业集团有限公司 | Manufacture of tundish nozzle pocket block filler using waste high-alumina brick and waste magnesium brick |
| CN104030705A (en) * | 2014-05-28 | 2014-09-10 | 长兴北辰耐火阻燃材料有限公司 | Preparation method of dry-type composite furnace lining of intermediate frequency furnace |
-
2015
- 2015-02-02 CN CN201510054600.0A patent/CN104692813A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962551A (en) * | 2006-11-24 | 2007-05-16 | 辽宁中兴矿业集团有限公司 | Manufacture of tundish nozzle pocket block filler using waste high-alumina brick and waste magnesium brick |
| CN104030705A (en) * | 2014-05-28 | 2014-09-10 | 长兴北辰耐火阻燃材料有限公司 | Preparation method of dry-type composite furnace lining of intermediate frequency furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107954730A (en) * | 2017-12-11 | 2018-04-24 | 攀枝花钢城集团有限公司 | Intermediate frequency furnace converter nose dry type ramming material and preparation method thereof |
| CN109437939A (en) * | 2018-12-30 | 2019-03-08 | 河南新拓耐火材料有限公司 | A kind of fire clay and preparation method thereof |
| CN112125682A (en) * | 2020-08-21 | 2020-12-25 | 宁波长振铜业有限公司 | Furnace striking material for melting channel of regenerative brass power frequency induction furnace and use method |
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Application publication date: 20150610 |
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