CN1869252A - Superlight, carbonless granular ladle covering agent resource saving and environment type - Google Patents
Superlight, carbonless granular ladle covering agent resource saving and environment type Download PDFInfo
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- CN1869252A CN1869252A CN 200510026190 CN200510026190A CN1869252A CN 1869252 A CN1869252 A CN 1869252A CN 200510026190 CN200510026190 CN 200510026190 CN 200510026190 A CN200510026190 A CN 200510026190A CN 1869252 A CN1869252 A CN 1869252A
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Abstract
The invention relates to a light and non-carbon particle steel cladding covering agent that is made up of CaO 15-45%, SiO2 40-70%, MgO 1-6%, Al2O3 2-10%, FeO 0.1-2%, Na2O 0.01-1.0%, and corn starch 1-2%. The advantages of the invention are good extruding granulation molding capability, good initial intension and late strength, low powder content, no pollution, and the density could be adjusted between 0.4-0.7. It is benefit for prolong cladding time. It has no social pollution effects and low density, etc.
Description
Technical field
The present invention relates to a kind of granular ladle covering agent, particularly relate to a kind of resources conservation and environmentally friendly ultralight matter, carbonless granular ladle covering agent.
Background technology
The employing carbonization rice husk that present general ladle covering agent has, but its spreadability is poor, easily cause secondary oxidation of steel, and calorific value is relatively low, chemical time is shorter relatively, thereby heat insulation effect is undesirable, also causes environmental pollution simultaneously.The employing carbon containing insulating covering agent that has, though spreadability makes moderate progress behind the expanding materials such as interpolation expanded vermiculite, but expanded vermiculite etc. belong to first resource, do not meet the resources conservation principle, and the insulating covering agent that the carbon containing insulating covering agent especially adds graphite carbon easily causes ultra low-carbon steel and Ultralow Carbon Stainless Steel molten steel recarburization.
Summary of the invention
The objective of the invention is to solve the carbon containing insulating covering agent employing first resource that the spreadability of ladle covering agent is poor in the prior art, heat insulation effect is undesirable, easily pollute molten steel and environment and add graphite, coal, coke powder etc., easily cause the problem of ultra low-carbon steel and Ultralow Carbon Stainless Steel molten steel recarburization etc.A kind of resources conservation and environmentally friendly ultralight matter, carbonless granular ladle covering agent are provided.Technical scheme of the present invention is a kind of ultralight matter of design, carbonless granular ladle covering agent, it is characterized in that: be made up of calcium oxide, silicon-dioxide, magnesium oxide, aluminium sesquioxide, ferric oxide, sodium oxide and binding agent.Binding agent is a W-Gum.The weight percent of its constituent is: calcium oxide 15%--45%, silicon-dioxide 40%--70%, magnesium oxide 1%--6%, aluminium sesquioxide 2%--10%, ferric oxide 0.1%--2%, sodium oxide 0.01%--1.0%, W-Gum 1%--2%.Advantage of the present invention is to have adopted the pre-molten secondary resource, and not only composition is even, and glassy phase content height, and glassy phase has higher interior energy than crystal, the chemical reaction ability is strong than crystal, than the Zao liquid phase that becomes of crystal, helps preventing secondary oxidation of steel under the ladle molten steel hot conditions; Be aided with nuisanceless, microstructure honeycomb hole (∽ 10 μ m), SiO by micro-meter scale
2The non-tight adhesive aggregation of gel particles and the nanoscale hole that the forms (＜Ultra-Light Material 50nm) formed, become a kind of resources conservation and environmentally friendly ultralight matter, carbonless granular ladle covering agent behind the granulating and drying, both had good heat-insulating property, can not pollute again molten steel and environment, can stablize pulling rate thus, make the continuous casting direct motion.
Below in conjunction with embodiment the present invention is elaborated:
Embodiment
Embodiment 1 gets calcium oxide 27.8Kg with chemical ingredients (by weight) meter of ultralight matter, carbonless granular ladle covering agent, silicon-dioxide 58.7Kg, magnesium oxide 4.9Kg, aluminium sesquioxide 6.1Kg, ferric oxide 0.4Kg, sodium oxide 0.1Kg, add 2Kg W-Gum----food grade organic bond, add suitable quantity of water as required, stir, extruder grain (φ 5 ∽ 8mm right cylinders, long 5 ∽ 25mm), be baked to moisture content of finished products≤1%, treat finished product cooling back packing, warehouse-in.
Embodiment 2 gets calcium oxide 15Kg with chemical ingredients (by weight) meter of ultralight matter, carbonless granular ladle covering agent, silicon-dioxide 68Kg, magnesium oxide 3Kg, aluminium sesquioxide 10Kg, ferric oxide 1.9Kg, sodium oxide 0.1Kg, add 2Kg W-Gum----food grade organic bond, add suitable quantity of water as required, stir, extruder grain (φ 5 ∽ 8mm right cylinders, long 5 ∽ 25mm), be baked to moisture content of finished products≤1%, treat finished product cooling back packing, warehouse-in.
Embodiment 3 gets calcium oxide 44Kg with chemical ingredients (by weight) meter of ultralight matter, carbonless granular ladle covering agent, silicon-dioxide 49Kg, magnesium oxide 1Kg, aluminium sesquioxide 2Kg, ferric oxide 1Kg, sodium oxide 1Kg, add 2Kg W-Gum----food grade organic bond, add suitable quantity of water as required, stir, extruder grain (φ 5 ∽ 8mm right cylinders, long 5 ∽ 25mm), be baked to moisture content of finished products≤1%, treat finished product cooling back packing, warehouse-in.
Ultralight matter, carbonless granular ladle covering agent processability are good, have good initial strength and later strength, it is low to contain the powder rate, to molten steel and environmental nonpollution, density is adjustable as required between 0.4 ∽ 0.7, can satisfy differing capacities, the unlike material ladle molten steel of anti-material insulation needs, can stablize pulling rate thus, make the continuous casting direct motion.Dry slag, deslagging are not smooth to use back ladle wall, help prolonging bag age.Owing to adopted the pre-molten secondary resource, realize that in selection, production technique and use economy and environment improve synchronously, nuisanceless, low density helps advancing resources conservation and environmental friendliness.Not only adopted the pre-molten secondary resource, and realized that in selection, production technique and use economy and environment improve synchronously.Ultralight matter, carbonless granular ladle covering agent are particularly useful for ultra low-carbon steel and Ultralow Carbon Stainless Steel, to molten steel and environmental nonpollution; Have the well insulated heat-insulating property, meet the Sustainable development requirement.
Claims (4)
1. a resources conservation and environmentally friendly ultralight matter, carbonless granular ladle covering agent is characterized in that: be made up of calcium oxide, silicon-dioxide, magnesium oxide, aluminium sesquioxide, ferric oxide, sodium oxide and binding agent.
2. by described a kind of resources conservation of claim 1 and environmentally friendly ultralight matter, carbonless granular ladle covering agent, it is characterized in that: binding agent is a W-Gum.
3. by described a kind of resources conservation of claim 1 and environmentally friendly ultralight matter, carbonless granular ladle covering agent, it is characterized in that forming by following constituent and weight percent:
Calcium oxide 15%-45%,
Silicon-dioxide 40%-70%,
Magnesium oxide 1%-6%,
Aluminium sesquioxide 2%-10%,
Ferric oxide 0.1%-2%,
Sodium oxide 0.01%-1.0%.
W-Gum 1%-2%.
4. by described a kind of resources conservation of claim 3 and environmentally friendly ultralight matter, carbonless granular ladle covering agent, it is characterized in that forming by following constituent and weight percent:
Calcium oxide 27.8%,
Silicon-dioxide 58.7%,
Magnesium oxide 4.9%,
Aluminium sesquioxide 6.1%,
Ferric oxide 0.4%,
Sodium oxide 0.1%,
W-Gum 2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510026190 CN1869252A (en) | 2005-05-25 | 2005-05-25 | Superlight, carbonless granular ladle covering agent resource saving and environment type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510026190 CN1869252A (en) | 2005-05-25 | 2005-05-25 | Superlight, carbonless granular ladle covering agent resource saving and environment type |
Publications (1)
| Publication Number | Publication Date |
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| CN1869252A true CN1869252A (en) | 2006-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200510026190 Pending CN1869252A (en) | 2005-05-25 | 2005-05-25 | Superlight, carbonless granular ladle covering agent resource saving and environment type |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736132B (en) * | 2009-12-31 | 2011-08-03 | 辽宁天和矿产有限公司 | Sintering synthetic slag and production method thereof |
| CN103769556A (en) * | 2014-01-22 | 2014-05-07 | 红安县生伦冶金矿产科技实业有限公司 | Expansion heat-preserving agent |
| CN105087909A (en) * | 2015-09-11 | 2015-11-25 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Direct reduction anti-oxidation covering agent for iron ore tunnel kiln and preparation method thereof |
| CN105328150A (en) * | 2015-11-18 | 2016-02-17 | 武汉钢铁(集团)公司 | Heating type particulate molten steel thermal insulation agent and preparation method thereof |
| CN107552746A (en) * | 2017-08-31 | 2018-01-09 | 赣州鼎洋贸易有限公司 | A kind of heat preserving agent for liquid steel and its insulation oxidant layer |
| CN111187992A (en) * | 2020-02-26 | 2020-05-22 | 江苏省沙钢钢铁研究院有限公司 | Production method of continuous casting billet of wire rod for cutting diamond wire |
-
2005
- 2005-05-25 CN CN 200510026190 patent/CN1869252A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736132B (en) * | 2009-12-31 | 2011-08-03 | 辽宁天和矿产有限公司 | Sintering synthetic slag and production method thereof |
| CN103769556A (en) * | 2014-01-22 | 2014-05-07 | 红安县生伦冶金矿产科技实业有限公司 | Expansion heat-preserving agent |
| CN105087909A (en) * | 2015-09-11 | 2015-11-25 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Direct reduction anti-oxidation covering agent for iron ore tunnel kiln and preparation method thereof |
| CN105328150A (en) * | 2015-11-18 | 2016-02-17 | 武汉钢铁(集团)公司 | Heating type particulate molten steel thermal insulation agent and preparation method thereof |
| CN107552746A (en) * | 2017-08-31 | 2018-01-09 | 赣州鼎洋贸易有限公司 | A kind of heat preserving agent for liquid steel and its insulation oxidant layer |
| CN107552746B (en) * | 2017-08-31 | 2020-04-07 | 赣州鼎洋贸易有限公司 | Molten steel heat-insulating agent and heat-insulating agent layer thereof |
| CN111187992A (en) * | 2020-02-26 | 2020-05-22 | 江苏省沙钢钢铁研究院有限公司 | Production method of continuous casting billet of wire rod for cutting diamond wire |
| CN111187992B (en) * | 2020-02-26 | 2022-03-29 | 江苏省沙钢钢铁研究院有限公司 | Production method of continuous casting billet of wire rod for cutting diamond wire |
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Open date: 20061129 |