CN103553642A - Energy-saving environment-friendly tundish dry-type working lining material - Google Patents
Energy-saving environment-friendly tundish dry-type working lining material Download PDFInfo
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- CN103553642A CN103553642A CN201310454895.1A CN201310454895A CN103553642A CN 103553642 A CN103553642 A CN 103553642A CN 201310454895 A CN201310454895 A CN 201310454895A CN 103553642 A CN103553642 A CN 103553642A
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Abstract
The invention relates to an unshaped refractory material, and especially an energy-saving environment-friendly tundish dry-type working lining material. According to the invention, the material has the main raw materials of, by weight: 20-50% of 1-0.2mm magnesium grains, 20-40% of magnesium grains no larger than 0.074mm, 5-15% of 5-3mm forsterite particles, 10-30% of 3-1mm forsterite particles, 5-15% of 5-3mm waste magnesium-carbon brick trimmed particles, and 10-20% of 3-1mm waste magnesium-carbon brick trimmed particles. The material also comprises 5-10wt% of a binding agent formed by sodium silicate pentahydrate and glucose. The material also comprises a burning promotion agent formed by alumina powder and boric acid. The material has the advantages of simple construction, no toxicity and odor during baking, no pollution to molten steel, good corrosion resistance, easy disintegration, and long service life.
Description
Technical field
The invention belongs to amorphous refractory field, more particularly the present invention relates to a kind of energy-conserving and environment-protective dry working lining material.
Background technology
Tundish is that in steel-making continuous casting production process, molten steel is diverted to the intermediate store of crystallizer from ladle, and it has become in iron and steel smelting process in the end topmost refining vessel of stage, and to large scale development.It is positioned in the middle of ladle and crystallizer, so the refractory quality of liner in dundish, and to guaranteeing clean steel-making, sequence casting and tundish are most important to large scale development.
And the existing bag dry working lining material generally using, material is mainly magnesia.There is work-ing life longer.During construction, do not add water, without Mixing Machine, low temperature dries to burn after 2 hours and just can use.Not explosion in bake process, does not peel off, good with permanent liner adhesivity, does not fall after rise and caves in, easy and convenient with the residual slag of rear removing, and does not damage permanent liner.Resistance to fouling is good.But above-mentioned dry materials contaminate environment, cost is higher.
Summary of the invention:
The object of the invention is to provide a kind of easy construction that has; baking time is short, turn over contain easily, be easy to disintegrate, erosion-resisting characteristics is good; long service life; utilize waste magnesia carbon bricks shaping to be processed into suitable particles and directly substitute magnesia use with raw forsterite raw material; preferably environment and the free of contamination five water sodium silicate of molten steel and glucose are made to combined binder; we invented and saved resource, the energy, protected Working environment again, do not pollute molten steel.
A kind of energy-conserving and environment-protective dry working lining of the present invention material is by magnesia, useless magnesium carbon silicon shaping particle and raw forsterite are major ingredient, with aluminum oxide powder, boric acid is the agent of short burning, with five water sodium silicate and glucose, share a kind of energy-conserving and environment-protective dry working lining material of making bonding agent, its component is by weight percentage: magnesia is 30-50%, useless magnesium carbon silicon shaping particle is 20-40%, raw forsterite is 20-40%, short burning agent aluminum oxide powder is 2-5%, boric acid 0.5-2%, bonding agent five water sodium silicate and glucose content are 5-15%, above-mentioned each component sum is 100%, standby through mixing pack.
A kind of energy-conserving and environment-protective tundish dry of the present invention wadding, a preferred embodiment is, its component is by weight percentage: magnesia≤0.088mm is 30-40%, useless magnesium carbon silicon shaping particle 5-3mm is 5-20%, 3-1mm is 15-30%, raw peridotites particle 5-3mm is 5-20%, 3-1mm is 15-30%, add and short burn agent to use wherein a kind of aluminum oxide powder≤0.088mm be 2-5%, boric acid is 0.5-1%, bonding agent five water sodium silicate and glucose sum are 5-10%, after mixing, above each component sum 100% pours mold vibration into by baking, can make a kind of energy-conserving and environment-protective tundish wadding of working.
Main raw material technical indicator is as follows:
Magnesia: Mgo>95%, Sio
2<1.8%
Waste magnesia carbon brick particle: Mgo>91.5%, Fe
2o
3<1.2%
Raw forsterite: Mgo>47%, Sio
239-41%
Physicals is as follows:
Compressive strength: 250 ℃ of x3h are 5mpa
1500 ℃ of x3h are 38.6mpa
Folding strength: 250 ℃ of x3h are 3.8mpa
1500 ℃ of x3h are 1.35mpa
Volume density: 250 ℃ of x3h are 2.38mpa/cm
3.
Claims (3)
1. an energy-conserving and environment-protective dry working lining material, is characterized in that material component is by mass percentage:
Magnesia particle 1-0.2mm is 20-40%, and≤0.074mm is 20-40,
Forsterite particle 5-3mm is 5-20%, and 3-1mm is 10-30%,
Waste magnesia carbon brick particle 5-3mm is 5-15%, and 3-1mm is 10-20%,
Short burning agent aluminum oxide powder≤0.088 is 2-5%, and boric acid is 0.5-2%,
Bonding agent five water sodium silicate and glucose sum are 5-10%,
Above each component sum is 100%.
2. according to a kind of energy-conserving and environment-protective bag dry working lining material described in claims 1, it is characterized in that described its quality index of waste magnesia carbon brick shaping particle is: mgo>=91.5%, Fe
20
3<1.2%, solid carbon content <1%, volume density >3.16g/cm3.
3. according to the prepared energy-conserving and environment-protective tundish dry wadding of the method for a kind of energy-conserving and environment-protective dry working lining material of the preparation described in claim 1,2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310454895.1A CN103553642A (en) | 2013-09-30 | 2013-09-30 | Energy-saving environment-friendly tundish dry-type working lining material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310454895.1A CN103553642A (en) | 2013-09-30 | 2013-09-30 | Energy-saving environment-friendly tundish dry-type working lining material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103553642A true CN103553642A (en) | 2014-02-05 |
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ID=50008061
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310454895.1A Pending CN103553642A (en) | 2013-09-30 | 2013-09-30 | Energy-saving environment-friendly tundish dry-type working lining material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104130000A (en) * | 2014-07-24 | 2014-11-05 | 宁国市开源电力耐磨材料有限公司 | Spinel furnace-lining refractory material for electric induction furnace and manufacturing method thereof |
| CN108033775A (en) * | 2017-11-22 | 2018-05-15 | 海城利尔麦格西塔材料有限公司 | A kind of burned-magnesia brick and its production method that paper pulp is replaced with Dextrose Monohydrate |
| CN110655388A (en) * | 2019-10-25 | 2020-01-07 | 海城利尔麦格西塔材料有限公司 | Preparation method of low-cost tundish dry material |
| CN111348898A (en) * | 2019-07-08 | 2020-06-30 | 营口石兴耐火材料科技有限公司 | Method for optimizing slag corrosion resistance and penetration resistance of low-carbon magnesia carbon material |
| CN113200755A (en) * | 2021-04-20 | 2021-08-03 | 武汉钢铁集团耐火材料有限责任公司 | Environment-friendly continuous casting tundish dry material and preparation method thereof |
-
2013
- 2013-09-30 CN CN201310454895.1A patent/CN103553642A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104130000A (en) * | 2014-07-24 | 2014-11-05 | 宁国市开源电力耐磨材料有限公司 | Spinel furnace-lining refractory material for electric induction furnace and manufacturing method thereof |
| CN108033775A (en) * | 2017-11-22 | 2018-05-15 | 海城利尔麦格西塔材料有限公司 | A kind of burned-magnesia brick and its production method that paper pulp is replaced with Dextrose Monohydrate |
| CN111348898A (en) * | 2019-07-08 | 2020-06-30 | 营口石兴耐火材料科技有限公司 | Method for optimizing slag corrosion resistance and penetration resistance of low-carbon magnesia carbon material |
| CN110655388A (en) * | 2019-10-25 | 2020-01-07 | 海城利尔麦格西塔材料有限公司 | Preparation method of low-cost tundish dry material |
| CN113200755A (en) * | 2021-04-20 | 2021-08-03 | 武汉钢铁集团耐火材料有限责任公司 | Environment-friendly continuous casting tundish dry material and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140205 |