CN103146886A - Calcium manganese aluminum liquid steel out-of-furnace refining agent and preparation method thereof - Google Patents

Calcium manganese aluminum liquid steel out-of-furnace refining agent and preparation method thereof Download PDF

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Publication number
CN103146886A
CN103146886A CN2013100428607A CN201310042860A CN103146886A CN 103146886 A CN103146886 A CN 103146886A CN 2013100428607 A CN2013100428607 A CN 2013100428607A CN 201310042860 A CN201310042860 A CN 201310042860A CN 103146886 A CN103146886 A CN 103146886A
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refining agent
calcium
parts
manganese aluminum
preparation
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CN2013100428607A
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CN103146886B (en
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沈升好
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JIANGSU BINXIN STEEL GROUP CO., LTD.
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Anhui Fanchang Wannan Valve Casting Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

The invention discloses a calcium manganese aluminum liquid steel out-of-furnace refining agent and a preparation method thereof. The refining agent is composed of the raw materials, by weight, 34-36 parts of calcium oxide, 30-32 parts of manganese dioxide, 27-29 parts of aluminum oxide, 13-15 parts of siliceous shale, 3-5 parts of sodium carbonate, 7-9 parts of modified tree ashes and 9-11 parts of light calcium carbonate. The siliceous shale, the sodium carbonate, the modified tree ashes and the light calcium carbonate are added in the raw materials of the refining agent, the waste is turned into wealth, the absorptive properties of the refining agent are utilized fully, the refining agent is good in desulfuration and dephosphorization effect, the phenomenon of rephosphorization is reduced, at the same time, the content of the calcium oxide is high, and the production cost is reduced.

Description

A kind of calcium manganese aluminum steel water furnace external refining agent and preparation method thereof
Technical field
The present invention relates to steelmaking technical field, be specifically related to a kind of calcium manganese aluminum steel water furnace external refining agent and preparation method thereof.
Background technology
At present, STEELMAKING PRODUCTION rate and cost and steel products quality have been proposed more and more higher requirement, for being fit to this requirement, external refining particularly ladle furnace refining becomes important production process in modern refining flow process, be used widely at each smelter, a main metallurgical function of ladle furnace refining is to utilize refining agent to carry out refining to molten steel, to reach the purpose that reduces steel water oxygen, sulphur and inclusion content, improve the performance of steel, the refining agent kind is a lot.
Summary of the invention
The object of the present invention is to provide a kind of calcium manganese aluminum steel water furnace external refining agent and preparation method thereof, siliceous shale, sodium carbonate, modification trees ashes and light calcium carbonate have been increased in refining agent formula of the present invention, take full advantage of its absorption property, refining agent desulfurization, dephosphorization effect are good, and cost is low.
The present invention adopts following technical scheme to achieve these goals:
Calcium manganese aluminum steel water furnace external refining agent, the weight part of its constitutive material is: calcium oxide 34-36, Manganse Dioxide 30-32, aluminium sesquioxide 27-29, siliceous shale 13-15, sodium carbonate 3-5, modification trees ashes 7-9 and light calcium carbonate 9-11.
Calcium manganese aluminum steel water furnace external refining agent, the weight part of its constitutive material is: calcium oxide 35, Manganse Dioxide 31, aluminium sesquioxide 28, siliceous shale 14, sodium carbonate 4, modification trees ashes 8 and light calcium carbonate 10.
The preparation method of calcium manganese aluminum steel water furnace external refining agent comprises the following steps:
(1) fragmentation: each raw material is broken into respectively particle with crusher;
(2) mix: each raw material that fragmentation is good mixes by the formula requirement, and mixes with ball mill;
(3) sieve: with 100 eye mesh screens, the raw material that mixes is sieved;
(4) drying: the raw material after sieving is placed in baking oven and toasts, and removes moisture, and storing temperature is 110-130 ℃, according to the volatilization extent control storing time of moisture.
The preparation method of described modification trees ashes is as follows:
A, trees ashes are used 10-15% hydrogen peroxide dipping 3-4 hour, deionized water wash, then soaked 3-4 hour with the 10-12% sodium hydroxide solution, more extremely neutral with deionized water wash, oven dry;
B, the trees ashes after above-mentioned processing are heated to 1500-1600 ℃, add the iron powder that is equivalent to its weight 2-3%, the wood charcoal powder of 1-2%, the salt of 2-3%, the feldspar in powder of 3-5%, stir, and pour in water, and ovendry power is broken into ultrafine powder.
Beneficial effect of the present invention:
Add siliceous shale, sodium carbonate, modification trees ashes and light calcium carbonate in raw material of the present invention, turned waste into wealth, taken full advantage of its absorption property, refining agent desulfurization, dephosphorization effect are good, have reduced the rephosphorization phenomenon, simultaneously, wherein calcium oxide content is high, has reduced production cost.
Embodiment
Embodiment 1: calcium manganese aluminum steel water furnace external refining agent, the weight part of its constitutive material (kg) is: calcium oxide 35, Manganse Dioxide 31, aluminium sesquioxide 28, siliceous shale 14, sodium carbonate 4, modification trees ashes 8 and light calcium carbonate 10.
The preparation method of calcium manganese aluminum steel water furnace external refining agent comprises the following steps:
(1) fragmentation: each raw material is broken into respectively particle with crusher;
(2) mix: each raw material that fragmentation is good mixes by the formula requirement, and mixes with ball mill;
(3) sieve: with 100 eye mesh screens, the raw material that mixes is sieved;
(4) drying: the raw material after sieving is placed in baking oven and toasts, and removes moisture, and storing temperature is 120 ℃, according to the volatilization extent control storing time of moisture.
The preparation method of described modification trees ashes is as follows:
A, trees ashes be with 15% hydrogen peroxide dipping 4 hours, deionized water wash, then soaked 4 hours with 12% sodium hydroxide solution, then with deionized water wash to neutral, oven dry;
B, the trees ashes after above-mentioned processing are heated to 1500-1600 ℃, add the iron powder that is equivalent to its weight 2%, 1% wood charcoal powder, 3% salt, 5% feldspar in powder, stir, and pour in water, and ovendry power is broken into ultrafine powder.
Below in conjunction with the Preparation Example of above-mentioned refining agent, specifically describe the using method of steel-making refining agent of the present invention:
Adopt the described refining agent of embodiment 1, addition method, divide a secondary to add routinely, and the test molten steel is surrounded by No. 1-5, desulfurization, sulphur phosphorus effect such as following table:
No. 1: molten steel condition: S 0.035%, P 0.170%; Desulfurization degree 48%, dephosphorization rate 62%;
No. 2: molten steel condition: S 0.038%, P 0.175%; Desulfurization degree 45%, dephosphorization rate 57%;
No. 3: molten steel condition: S 0.037%, P 0.174%; Desulfurization degree 46%, dephosphorization rate 58%;
No. 4: molten steel condition: S 0.031%, P 0.168%; Desulfurization degree 53%, dephosphorization rate 63%;
No. 5: molten steel condition: S 0.033%, P 0.166%; Desulfurization degree 51%, dephosphorization rate 65%.
Illustrate that refining agent of the present invention has higher desulfurization, sulphur phosphorus rate, and good stability, cost is lower, can substantially satisfy steel mill's technical requirements.

Claims (4)

1. a calcium manganese aluminum steel water furnace external refining agent, is characterized in that the weight part of its constitutive material is: calcium oxide 34-36, Manganse Dioxide 30-32, aluminium sesquioxide 27-29, siliceous shale 13-15, sodium carbonate 3-5, modification trees ashes 7-9 and light calcium carbonate 9-11.
2. calcium manganese aluminum steel water furnace external refining agent according to claim 1, is characterized in that the weight part of its constitutive material is: calcium oxide 35, Manganse Dioxide 31, aluminium sesquioxide 28, siliceous shale 14, sodium carbonate 4, modification trees ashes 8 and light calcium carbonate 10.
3. the preparation method of a calcium manganese aluminum steel water furnace external refining agent as claimed in claim 1 is characterized in that comprising the following steps:
(1) fragmentation: each raw material is broken into respectively particle with crusher;
(2) mix: each raw material that fragmentation is good mixes by the formula requirement, and mixes with ball mill;
(3) sieve: with 100 eye mesh screens, the raw material that mixes is sieved;
(4) drying: the raw material after sieving is placed in baking oven and toasts, and removes moisture, and storing temperature is 110-130 ℃, according to the volatilization extent control storing time of moisture.
4. calcium manganese aluminum steel water furnace external refining agent according to claim 1, it is characterized in that: the preparation method of described modification trees ashes is as follows:
A, trees ashes are used 10-15% hydrogen peroxide dipping 3-4 hour, deionized water wash, then soaked 3-4 hour with the 10-12% sodium hydroxide solution, more extremely neutral with deionized water wash, oven dry;
B, the trees ashes after above-mentioned processing are heated to 1500-1600 ℃, add the iron powder that is equivalent to its weight 2-3%, the wood charcoal powder of 1-2%, the salt of 2-3%, the feldspar in powder of 3-5%, stir, and pour in water, and ovendry power is broken into ultrafine powder.
CN201310042860.7A 2013-02-04 2013-02-04 Calcium manganese aluminum liquid steel out-of-furnace refining agent and preparation method thereof Active CN103146886B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103667970A (en) * 2013-11-08 2014-03-26 铜陵安东铸钢有限责任公司 High-heat-strength high-carbon steel material and preparation method thereof
CN103834760A (en) * 2014-02-25 2014-06-04 中国石油大学(北京) Method and device for producing reduced iron by using synthesis gas prepared from gas

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101649371A (en) * 2009-08-26 2010-02-17 武汉科技大学 Desulfurating agent for out-of-furnace treatment and preparation method thereof
CN102758054A (en) * 2012-06-21 2012-10-31 芜湖县天海耐火炉料有限公司 Calcium-aluminium-silicon molten steel external refining agent and preparation method thereof
US20130019715A1 (en) * 2011-07-18 2013-01-24 Nupro Corporation Composition for reducing the oxygen potential of slag

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101649371A (en) * 2009-08-26 2010-02-17 武汉科技大学 Desulfurating agent for out-of-furnace treatment and preparation method thereof
US20130019715A1 (en) * 2011-07-18 2013-01-24 Nupro Corporation Composition for reducing the oxygen potential of slag
CN102758054A (en) * 2012-06-21 2012-10-31 芜湖县天海耐火炉料有限公司 Calcium-aluminium-silicon molten steel external refining agent and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103667970A (en) * 2013-11-08 2014-03-26 铜陵安东铸钢有限责任公司 High-heat-strength high-carbon steel material and preparation method thereof
CN103667970B (en) * 2013-11-08 2016-01-27 铜陵安东铸钢有限责任公司 Strong high-carbon steel material of a kind of heat and preparation method thereof
CN103834760A (en) * 2014-02-25 2014-06-04 中国石油大学(北京) Method and device for producing reduced iron by using synthesis gas prepared from gas
CN103834760B (en) * 2014-02-25 2016-02-17 中国石油大学(北京) A kind of method and device utilizing coal mine gas preparing synthetic gas production reduced iron

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Effective date of registration: 20190704

Address after: 222000 Xiangshi Village, Zhewang Town, Ganyu District, Lianyungang City, Jiangsu Province

Patentee after: JIANGSU BINXIN STEEL GROUP CO., LTD.

Address before: 241200 E Shan Industrial Park, Fanchang County, Wuhu, Anhui

Patentee before: Anhui Fanchang County Wannan Valve Casting Co.,Ltd.