CN100569965C - The binding agent of the fixed ion dust mud contaning cooled agglomerated pellet of pressure ball under a kind of normal temperature - Google Patents
The binding agent of the fixed ion dust mud contaning cooled agglomerated pellet of pressure ball under a kind of normal temperature Download PDFInfo
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- CN100569965C CN100569965C CNB2005100260461A CN200510026046A CN100569965C CN 100569965 C CN100569965 C CN 100569965C CN B2005100260461 A CNB2005100260461 A CN B2005100260461A CN 200510026046 A CN200510026046 A CN 200510026046A CN 100569965 C CN100569965 C CN 100569965C
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- oxide
- pressure ball
- normal temperature
- dust mud
- ion dust
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Abstract
The present invention relates to the binding agent of the fixed ion dust mud contaning cooled agglomerated pellet of pressure ball under a kind of normal temperature, the weight percent that it is characterized in that constituent is: calcium oxide 32%-45%, silicon-dioxide 32%-42%, magnesium oxide 5%-15%, aluminium sesquioxide 7%-16%, ferric oxide 0.1%-1.5%, manganese oxide 0.2%-1.0%.The weight percent that it is characterized in that constituent is: calcium oxide 39.1%, silicon-dioxide 32.2%, magnesium oxide 11.6%, aluminium sesquioxide 15.3%, ferric oxide 1.4%, manganese oxide 0.4%.Advantage of the present invention is: belong to the pre-molten secondary resource, add-on is few, easily mixes thoroughly, need not heat drying behind the normal pressure pressure ball, and is nuisanceless, fixedly under the normal temperature can obtain the good high-quality ion dust mud contaning cooled agglomerated pellet of metallurgical performance.Output increases to some extent, and coke ratio descends to some extent, meets the demand for development of environment harmony and recycling economy.
Description
Technical field
The present invention relates to a kind of binding agent of producing the ion dust mud contaning cooled agglomerated pellet, particularly relate to the fixed novel binders that can obtain high-quality ion dust mud contaning cooled agglomerated pellet of pressure ball under a kind pre-molten secondary resource, the normal temperature.
Background technology
The ion dust mud contaning cooled agglomerated pellet also can be used for producing direct-reduced iron (DRI) except that the slag former that is used for converter steelmaking, refrigerant.Produce the general binding agent that adopts of ion dust mud contaning cooled agglomerated pellet at present mineral binder bond (as silicate cement, wilkinite, water glass etc.), organic binder bond (as syrup, pitch, coal tar, sodium starch glycolate etc.), compound binding agent (as slaked lime+dextrin, wilkinite+spent pulping liquor etc.) are arranged.If adopt silicate cement fixed, the one, large usage quantity, the 2nd, the hot strength during reduction is undesirable; If adopt water glass fixed, need drying and consolidating under 300 ℃ of conditions of 250 ∽ after making ball, and ion dust mud contaning (or concentrate) need be dried to very low moisture in advance; If adopt syrup or sodium starch glycolate cost higher; If adopt slaked lime+dextrin, material is difficult for stirring.Above-mentioned various binding agent mostly is first resource greatly, and (as the water glass) that has need increase energy consumption when fixed, reductibility is poor when smelting; Hot strength when (as silicate cement) reductibility that has and reduction is undesirable; (as the wilkinite) that has can increase the consumption of smelting process flux; (as spent pulping liquor, the pitch) that has also may cause secondary pollution to environment.
Summary of the invention
The objective of the invention is to change the traditional binding agent of ion dust mud contaning cooled agglomerated pellet is first resource mostly; Fixed energy consumption height, the hot strength when smelting when reductibility and reduction are undesirable; Increase the consumption of smelting process flux; Environment is caused secondary pollution problems.The binding agent of the fixed ion dust mud contaning cooled agglomerated pellet of pressure ball under a kind of a kind of normal temperature that overcomes above-mentioned defective is provided.Technical scheme of the present invention is the binding agent of the fixed ion dust mud contaning cooled agglomerated pellet of pressure ball under a kind of normal temperature of design, the weight percent that it is characterized in that constituent is: calcium oxide 32%---45%, silicon-dioxide 32%---42%, magnesium oxide 5%---15%, aluminium sesquioxide 7%---16%, ferric oxide 0.1%---1.5%, manganese oxide 0.2%---1.0%.The weight percent that it is characterized in that constituent is: calcium oxide 39.1%, silicon-dioxide 32.2%, magnesium oxide 11.6%, aluminium sesquioxide 15.3%, ferric oxide 1.4%, manganese oxide 0.4%.Most oxide compounds in the wedding agent of the present invention do not exist with unbound state, but exist with mineral forms such as different silicate and aluminosilicates, and mineral composition is vitreum and microcrystal.Novel binders is in advance through superfine pulverizing, and specific surface area is 420 ∽ 460m
2/ Kg, advantage of the present invention is: belong to the pre-molten secondary resource, add-on is few, easily mixes thoroughly, need not heat drying behind the normal pressure pressure ball, and is nuisanceless, fixedly under the normal temperature can obtain the good high-quality ion dust mud contaning cooled agglomerated pellet of metallurgical performance.Under iron ore resource situation deficient day by day, dependence on import in a large number, blast furnace can partly adopt high-quality ion dust mud contaning cooled agglomerated pellet.The high-quality ion dust mud contaning cooled agglomerated pellet of in blast furnace, joining 10% ∽ 30%, furnace condition anterograde, output increases to some extent, and coke ratio descends to some extent, meets the demand for development of environment harmony and recycling economy.
Below in conjunction with embodiment the present invention is elaborated:
Embodiment
Embodiment 1 preparation novel binders double centner, meter is got calcium oxide 39.1Kg, silicon-dioxide 32.2Kg, magnesium oxide 11.6Kg, aluminium sesquioxide 15.3Kg, ferric oxide 1.4Kg, manganese oxide 0.4Kg, specific surface area is controlled to be 430m
2/ Kg, under the normal pressure pressure ball condition, ratio in novel binders 7% adds in the ion dust mud contaning for preparing in advance, do earlier and mix, add then suitable quantity of water, stir, by conveyor the compound of mixing thoroughly is delivered to normal pressure ball press feed bin, pressure ball after under the normal temperature seasoning fixed, go into stockyard and stack standby.
Embodiment 2 preparation novel binders double centners, meter is got calcium oxide 33Kg, silicon-dioxide 40Kg, magnesium oxide 10Kg, aluminium sesquioxide 15Kg, ferric oxide 1Kg, manganese oxide 1Kg, specific surface area is controlled to be 430m
2/ Kg, under the normal pressure pressure ball condition, ratio in novel binders 7% adds in the ion dust mud contaning for preparing in advance, do earlier and mix, add then suitable quantity of water, stir, by conveyor the compound of mixing thoroughly is delivered to normal pressure ball press feed bin, pressure ball after under the normal temperature seasoning fixed, go into stockyard and stack standby.
Embodiment 3 preparation novel binders double centners, meter is got calcium oxide 45Kg, silicon-dioxide 38Kg, magnesium oxide 5Kg, aluminium sesquioxide 11Kg, ferric oxide 0.1Kg, manganese oxide 0.9Kg, specific surface area is controlled to be 430m
2/ Kg, under the high pressure pressure ball condition, ratio in novel binders 4% adds in the ion dust mud contaning for preparing in advance, do earlier and mix, add then suitable quantity of water, stir, by conveyor the compound of mixing thoroughly is delivered to normal pressure ball press feed bin, pressure ball after under the normal temperature seasoning fixed, go into stockyard and stack standby.But adopt not only production high-quality of novel binders ion dust mud contaning cooled agglomerated pellet to be used for blast furnace, also can produce ion dust mud contaning carbon containing cooled agglomerated pellet and be used for the field of directly reducing.During high pressure ball press processing ion dust mud contaning cooled agglomerated pellet, the novel binders add-on only is 4%, can obtain good balling-up, cold strength, hot strength and metallurgical performance.Adopt to belong to the novel binders that can obtain high-quality ion dust mud contaning cooled agglomerated pellet under pre-molten secondary resource, the normal temperature after fixed, help advancing environment harmony and recycling economy.
Claims (2)
1, the binding agent of the fixed ion dust mud contaning cooled agglomerated pellet of pressure ball under a kind of normal temperature is characterized in that the weight percent of constituent is:
Calcium oxide 32%---45%,
Silicon-dioxide 32%---42%,
Magnesium oxide 5%---15%,
Aluminium sesquioxide 7%---16%,
Ferric oxide 0.1%---1.5%,
Manganese oxide 0.2%---1.0%,
The specific surface area of described binding agent is controlled to be 420-460m
2/ Kg.
2, by the binding agent of the fixed ion dust mud contaning cooled agglomerated pellet of pressure ball under the described a kind of normal temperature of claim 1, it is characterized in that the weight percent of constituent is:
Calcium oxide 39.1%,
Silicon-dioxide 32.2%,
Magnesium oxide 11.6%,
Aluminium sesquioxide 15.3%,
Ferric oxide 1.4%,
Manganese oxide 0.4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100260461A CN100569965C (en) | 2005-05-20 | 2005-05-20 | The binding agent of the fixed ion dust mud contaning cooled agglomerated pellet of pressure ball under a kind of normal temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100260461A CN100569965C (en) | 2005-05-20 | 2005-05-20 | The binding agent of the fixed ion dust mud contaning cooled agglomerated pellet of pressure ball under a kind of normal temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1865459A CN1865459A (en) | 2006-11-22 |
| CN100569965C true CN100569965C (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100260461A Expired - Fee Related CN100569965C (en) | 2005-05-20 | 2005-05-20 | The binding agent of the fixed ion dust mud contaning cooled agglomerated pellet of pressure ball under a kind of normal temperature |
Country Status (1)
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| CN (1) | CN100569965C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792850B (en) * | 2010-04-01 | 2011-05-25 | 同济大学 | Adhesive used for preparing cold bond pellets from Ramsbottom carbon powder, preparation method and use method thereof |
| CN103074487B (en) * | 2013-01-09 | 2014-06-18 | 承德石油高等专科学校 | Iron ore cooled agglomerated pellet binder |
| CN103695641B (en) * | 2013-12-06 | 2016-08-17 | 北京神雾环境能源科技集团股份有限公司 | One freezes off knot ball press technique high calcium consolidating agent and using method |
| CN110372307B (en) * | 2019-08-06 | 2021-11-02 | 广州班力仕环保建筑材料有限公司 | High-thermal-conductivity tile adhesive for floor heating and preparation method thereof |
| CN114717412B (en) * | 2022-04-18 | 2023-01-20 | 湖南中科颂辉科技有限公司 | Binder for cold-pressed pellets, cold-pressed pellets and preparation method of binder |
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2005
- 2005-05-20 CN CNB2005100260461A patent/CN100569965C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1865459A (en) | 2006-11-22 |
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Granted publication date: 20091216 Termination date: 20110520 |