CN1169475A - Heat-insulation molten steel heat-insulating agent - Google Patents

Heat-insulation molten steel heat-insulating agent Download PDF

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Publication number
CN1169475A
CN1169475A CN96117597A CN96117597A CN1169475A CN 1169475 A CN1169475 A CN 1169475A CN 96117597 A CN96117597 A CN 96117597A CN 96117597 A CN96117597 A CN 96117597A CN 1169475 A CN1169475 A CN 1169475A
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CN
China
Prior art keywords
heat
molten steel
insulating agent
insulation
vermiculite
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Granted
Application number
CN96117597A
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Chinese (zh)
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CN1062313C (en
Inventor
周光焰
李昌友
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Individual
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Individual
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Priority to CN96117597A priority Critical patent/CN1062313C/en
Publication of CN1169475A publication Critical patent/CN1169475A/en
Application granted granted Critical
Publication of CN1062313C publication Critical patent/CN1062313C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Ceramic Products (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The present invention relates to an adiabatic molten steel heat-insulating agent which is made up by using flue dust produced in electric power plant as base material and adding vermiculite, pearlite, carbon powder, cryolite and fluorite as auxiliary material. It possesses the following advantages: it can change waste material into things of valve, its environmental pollution is less, its bulk specific gravity is less than 0.6 g/cu cm, refractoriness is higher than 1250 deg. C. Besides, it doesn't adhere to ladle, and doesn't flake, and its heat-insulating property is good.

Description

Heat-insulation molten steel heat-insulating agent
The present invention relates to a kind of heat-insulation molten steel heat-insulating agent that is used for the insulation of ladle molten steel face.
Existing molten steel insulation material adopts carbonization rice husk mostly, can produce a large amount of dust when adding or smash slag, and it is healthy to have a strong impact on work on the spot environment and operator, and also causes on-the-spot electrical equipment short circuit often because of dust pollution; In addition, rice husk is important agricultural and industrial chemicals, uses it for the molten steel insulation raw material and be the waste to efficient resource.
The purpose of this invention is to provide a kind of slag of not being tied up with, not falling, the heat preserving agent composition does not influence the good heat-insulation molten steel heat-insulating agent of heat insulation effect of molten steel composition.
The present invention is achieved in that
A kind of heat-insulation molten steel heat-insulating agent is characterized in that containing in the raw material of this heat preserving agent (weight %): flue dust 25～60%, vermiculite 10～40%, perlite 10～25%, carbon dust 5～10%, sodium aluminum fluoride 3～7%, fluorite 2～5%.
Further scheme is that described vermiculite also can be mica or vermiculite and micaceous mixture.
This heat-insulation molten steel heat-insulating agent can be made like this: elder generation makes meal with various raw materials and mixes, and adds suitable quantity of water glass again, and it is caused finely ground particle substance, can use after screening, drying again.
Flue dust of the present invention can be power plant's flue dust, also can be that brick field or other are the flue dust of raw material with the coal.
Advantage of the present invention is to be base-material with public hazards power plant ash, has realized turning waste into wealth, and it is little that this heat preserving agent has environmental pollution simultaneously, and high insulating effect is suitable for characteristics such as steel grade is extensive.
Following table has provided 5 groups of embodiment of the present invention.
Above-mentioned raw materials is mixed, and make the particle of the  3～6mm of drying (moisture content is less than 0.5%), add about 1 kilogram, can realize good heat insulation effect, and its bulk specific gravity is less than 0.6g/cm by molten steel per ton in the ladle 3, its refractoriness is greater than 1250 ℃.

Claims (2)

1, a kind of heat-insulation molten steel heat-insulating agent is characterized in that containing in the raw material of this heat preserving agent (weight %): flue dust 25～60%, vermiculite 10～40%, perlite 10～25%, carbon dust 5～10%, sodium aluminum fluoride 3～7%, fluorite 2～5%.
2, heat-insulation molten steel heat-insulating agent according to claim 1 is characterized in that described vermiculite also can be mica or vermiculite and micaceous mixture.
CN96117597A 1996-06-24 1996-06-24 Heat-insulation molten steel heat-insulating agent Expired - Fee Related CN1062313C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN96117597A CN1062313C (en) 1996-06-24 1996-06-24 Heat-insulation molten steel heat-insulating agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN96117597A CN1062313C (en) 1996-06-24 1996-06-24 Heat-insulation molten steel heat-insulating agent

Publications (2)

Publication Number Publication Date
CN1169475A true CN1169475A (en) 1998-01-07
CN1062313C CN1062313C (en) 2001-02-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN96117597A Expired - Fee Related CN1062313C (en) 1996-06-24 1996-06-24 Heat-insulation molten steel heat-insulating agent

Country Status (1)

Country Link
CN (1) CN1062313C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1098130C (en) * 2000-08-01 2003-01-08 郭玉华 Grcular particles of insulating agent for molten steel and its preparing process
CN102343425A (en) * 2010-08-03 2012-02-08 安徽瑞丝保温材料有限公司 Granular rice hull ash thermal insulation agent
CN103173591A (en) * 2013-03-07 2013-06-26 西安建筑科技大学 Foundry ladle covering agent
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
CN104004868A (en) * 2014-05-30 2014-08-27 西峡县金阳矿冶有限公司 Environment-friendly slagging heat-preservation agent used for blast and medium-furnace iron making and preparation method thereof
CN104313212A (en) * 2014-09-28 2015-01-28 四川德胜集团钒钛有限公司 Molten iron heat preservation agent, preparation method of molten iron heat preservation agent and method for preserving temperature of molten iron
CN110039012A (en) * 2019-04-26 2019-07-23 西安建筑科技大学 A kind of Steel Casting Risers coverture and its preparation and application

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53100919A (en) * 1977-02-16 1978-09-02 Nippon Steel Corp Surface heat insulating agent for molten steel
JPH06179059A (en) * 1992-12-10 1994-06-28 Nippon Steel Corp Surface insulating material for molten steel
CN1124182A (en) * 1993-12-23 1996-06-12 徐连世 Development and production of multifunctional molten iron covering agent

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1098130C (en) * 2000-08-01 2003-01-08 郭玉华 Grcular particles of insulating agent for molten steel and its preparing process
CN102343425A (en) * 2010-08-03 2012-02-08 安徽瑞丝保温材料有限公司 Granular rice hull ash thermal insulation agent
CN103173591A (en) * 2013-03-07 2013-06-26 西安建筑科技大学 Foundry ladle covering agent
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
CN104004868A (en) * 2014-05-30 2014-08-27 西峡县金阳矿冶有限公司 Environment-friendly slagging heat-preservation agent used for blast and medium-furnace iron making and preparation method thereof
CN104004868B (en) * 2014-05-30 2016-05-04 西峡县金阳矿冶有限公司 Environmental protection slag heat preserving agent of smelting iron for height, stove and preparation method thereof
CN104313212A (en) * 2014-09-28 2015-01-28 四川德胜集团钒钛有限公司 Molten iron heat preservation agent, preparation method of molten iron heat preservation agent and method for preserving temperature of molten iron
CN110039012A (en) * 2019-04-26 2019-07-23 西安建筑科技大学 A kind of Steel Casting Risers coverture and its preparation and application

Also Published As

Publication number Publication date
CN1062313C (en) 2001-02-21

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