JPS6338515A - Molten iron desulfurizing and deoxidizing agent, its production and method for desulfurizing and deoxidizing molten iron - Google Patents
Molten iron desulfurizing and deoxidizing agent, its production and method for desulfurizing and deoxidizing molten ironInfo
- Publication number
- JPS6338515A JPS6338515A JP61179868A JP17986886A JPS6338515A JP S6338515 A JPS6338515 A JP S6338515A JP 61179868 A JP61179868 A JP 61179868A JP 17986886 A JP17986886 A JP 17986886A JP S6338515 A JPS6338515 A JP S6338515A
- Authority
- JP
- Japan
- Prior art keywords
- molten iron
- mixture
- hot air
- sintered body
- furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 230000003009 desulfurizing effect Effects 0.000 title claims 3
- 239000003795 chemical substances by application Substances 0.000 title 1
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 238000005245 sintering Methods 0.000 claims abstract description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 4
- 239000002893 slag Substances 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims description 9
- 239000000470 constituent Substances 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 238000006477 desulfuration reaction Methods 0.000 claims description 3
- 230000023556 desulfurization Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000020169 heat generation Effects 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 150000004679 hydroxides Chemical class 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
Description
【発明の詳細な説明】
物質はその温度上昇につれて、その相は固体液体、気体
、電離相へと変化し、又その温度低下の場合は、その逆
の現象を示すことは公知の事実である。[Detailed Description of the Invention] It is a well-known fact that as the temperature of a substance increases, its phase changes to solid liquid, gas, and ionized phase, and that when the temperature decreases, the opposite phenomenon occurs. .
又、物質は高温（エネルギーポテンシャルの高いン系に
於ては、系構成物質分子の原子への分解並びにイオン化
（吸熱ン反応が局所的に誘発されると同時ｌこ、他方生
成原子並びにイオン物質の結合（発熱］反応が局所的に
誘発され、系全体としては物質の分解（吸熱ン結合（発
熱）反応が連続的に同時誘発される現象のあることは公
知の事実である。この場合、物質の（総表面積／質量）
が大きい程、その反応速度が太きく（！表面／質量）の
小さい球形程その反応速λ
度が小さくなることも公知の事実である。In addition, substances are produced at high temperatures (in systems with high energy potential, the constituent material molecules of the system are decomposed into atoms and ionized (an endothermic reaction is locally induced), while at the same time the produced atoms and ionic substances are It is a well-known fact that there is a phenomenon in which a bonding (exothermic) reaction is induced locally, and the decomposition (endothermic bonding (exothermic) reaction) of a substance is continuously and simultaneously induced in the system as a whole.In this case, (total surface area/mass) of a substance
It is also a known fact that the larger the spherical shape is, the smaller the reaction rate λ is.
溶鉄（１５３８〜２８００°Ｃ１還元雰曲気］系内での
Ｏは活性化の状態であり、系中のＣ％Ｓと分子結合（発
熱）を行い、ＣＯ２，８（ＪＸとなり、系に対して発熱
作用を呈し、系構成物質の原子への゛分解並びにイオン
化を促進さす結果となるのである。従って系全体の脱酸
は系中にＣ並びにＳが存在する限り自然に促進されるこ
とは明である。この過程に於て生成されたＳ−−５（Ｊ
ｘ＋十→° 今中 ＋÷
をＡ／ 、Ｃａ 、Ｍｙ とのイオン結合（発熱
２体、Ａｒ１８３． Ｃα８０４ 、 Ｍｌ ８０４
として、烙融点瑚
並びに比重差を進用して系外（スラグ中ンに取り除けば
、溶銑中の脱酸、脱硫が可能であることに着目して、本
発明を完成したものである。O in the molten iron (1538-2800°C1 reducing atmosphere) system is in an activated state and forms a molecular bond (heat generation) with C%S in the system, becoming CO2,8 (JX) and This results in an exothermic effect and promotes the decomposition and ionization of the constituent substances of the system into atoms.Therefore, deoxidation of the entire system will be naturally promoted as long as C and S exist in the system. The S--5(J
x + 10 → ° Ionaka +÷ A/ , ionic bond with Ca, My (exothermic two-body, Ar183. Cα804, Ml 804
The present invention was completed by focusing on the fact that deoxidation and desulfurization in hot metal is possible by utilizing the melting point and specific gravity difference to remove it outside the system (into the slag).
次に焼結体の製造装置に付いて述べる。Next, the sintered body manufacturing apparatus will be described.
炉は堅型にして、円筒型部（１）及び円錐製部（２）に
よりて構成されている。而して一天井（７）は内筒型部
ｉｌ＋の頂部に固定してあり、その中心に放出ガス放出
口（５０）を有する放出ガス放出管（５）が設けである
。円錐部（２）底部中心に高温熱風吹き込み口（１５１
、その周囲に同心円的に焼結体取り出し口（ｉ３１が設
けられている。又円筒型部＋１）頂部にか吹き込む様に
開口している。The furnace is of a rigid type and is composed of a cylindrical part (1) and a conical part (2). The ceiling (7) is fixed to the top of the inner cylindrical part il+, and is provided with a gas discharge pipe (5) having a gas discharge port (50) at its center. There is a high temperature hot air blowing port (151) in the center of the bottom of the conical part (2).
A sintered body outlet (i31) is provided concentrically around the sintered body. Also, it is opened at the top of the cylindrical part +1 so that air can be blown into the sintered body.
次に焼成装置の作用効果に付いて述べる。混合物が混合
物吹き込み口（６−１）より、又高温の熱風が測温熱風
吹き込み口（１５１及び補助熱風吹き込み口（６−２）
より吹き込まれる場合、炉心高温、炉内壁低温の温度分
布を有する、固気相の旋回状の噴流層が炉内に誘発され
る。この場合頂部より送入された混合物は旋回降下上昇
ＩＪｒＩ環運動を繰り返す。この循環運動の過程に於て
混合物粒子は一度は高温の炉心を旋回上昇することとな
るので、混合物粒子間の相互衝突１こよる焼結反応が促
進され、粒経は増大し、底部よりの熱風に抗して、風篩
の原理により、質量均一の球状の焼結体として落下し、
焼結体集積室Ｉに集積されるのである、
次に溶鉄（１５３８’−２８０００，還元雰囲気ン系に
於ける脱流脱酸作用に付いて述べる。前述の如く、該溶
鉄（１５３８〜２８００’ｃ還元雰囲ン系内は高温にし
て、エネルギー ボランデャルが高いので、脱硫反応を
促進さすことにより、自然に系の脱ばが併行して促進さ
れることとなる。Next, the effects of the firing device will be described. The mixture flows through the mixture inlet (6-1), and the high temperature hot air flows through the temperature measuring hot air inlet (151) and the auxiliary hot air inlet (6-2).
When the gas is blown into the reactor, a swirling spouted bed of solid-gas phase is induced in the reactor, with a temperature distribution of high temperature in the core and low temperature on the inner wall of the reactor. In this case, the mixture fed from the top repeats a swirling, descending, rising IJrI ring motion. In the process of this circulation movement, the mixture particles once swirl up in the high-temperature core, so mutual collisions between the mixture particles accelerate the sintering reaction, the grain size increases, and the sintering reaction from the bottom increases. Against the hot air, it falls as a spherical sintered body with uniform mass due to the principle of wind sieving.
The molten iron (1538'-28000) is accumulated in the sintered body accumulation chamber I. Next, we will discuss the deoxidation effect of the molten iron (1538'-28000) in a reducing atmosphere system.As mentioned above, the molten iron (1538'-28000') Since the temperature inside the reducing atmosphere system is high and the energy volandial is high, by promoting the desulfurization reaction, debonding of the system is naturally promoted at the same time.
本発明の特徴とする処は、陽イオン化傾向の高い物質の
酸化物を溶鉄（１５３８〜２８００°Ｃ１還元雰囲気）
−系中に混入することにより。０はＣ或はＳと化合して
ＣＯｚ 、 Ｓｏｘとなり、その発熱作用により系を高
温に保持し、この高温により系内に誘発される陽イオン
化原子とＳ並びに８（ｇ化物の陰イオン物質のイオン結
合による硫化物或は硫酸塩として、その溶融点並びに比
重差を利用して、Ｓを除外スラグシ肇り除くことがある
。The feature of the present invention is that oxides of substances with a high tendency to cationization are removed from molten iron (1538 to 2800°C1 in a reducing atmosphere).
- By being mixed into the system. 0 combines with C or S to become COz and Sox, and its exothermic action keeps the system at a high temperature, and the cationized atoms induced in the system by this high temperature and the anionic substances of S and 8 (g) As a sulfide or sulfate due to ionic bonding, the melting point and specific gravity difference may be utilized to exclude S and remove slag.
図面は本発明装置の概念を示す略図であり、第１図はそ
の縦切Ｖ！ｆｒｆ図である。The drawings are schematic diagrams showing the concept of the device of the present invention, and FIG. 1 shows its vertical cut V! It is a frf diagram.
Claims (1)
独或は任意の割合での混合体（以下混合物と称す）にし
て、Ａｌ、Ｃａ、Ｍｇを単独或は任意の割合で該混合物
中に保有することを特徴とする熔鉄脱硫脱酸剤。 （II）特許請求の範囲（ I ）の混合物を焼結して得ら
れる焼結体の任意の粒度分布によりて構成されている混
合体（以下焼結混合物と称す）であることを特徴とする
熔鉄脱硫脱酸剤。 （III）特許請求の範囲（II）の焼結体の製造装置（以
下炉と称す）は堅型にして、円筒型或は円錐型又はこれ
等の組合せによりて構成され、頂部に天井（７）を有し
、その中心に排ガス放出管（５）の排ガス放出口（５０
）を、又その底部中心に高温熱風吹き込み口（１５）、
その周囲に同心円的に焼結体取り出し口（１３）を、又
頂部に適数個の混合物吹き込み口（６−１）、補助熱風
吹き込み口（６−２）を炉内壁面に接線方向に該混合物
並びに熱風を吹き込むことが出来る即く設けることを特
徴とする焼結体製造装置。 （ＩＩＩＩ）特許請求の範囲（III）の炉に於て、混合
物吹き込み口（６−１）よりの混合物並びに熱風吹き込
み口（１５）、（６−２）より吹き込まれる熱風とによ
りて誘発される、炉中心（以下炉心と称す）高温にして
、炉壁内面低温の固気相の旋回状の噴流層に於て、該混
合物は脱水、酸化、焼結され、底部焼結体取り出し口（
１３）に於ての上向き熱風による風篩の原理により、重
量均一、球形の焼結体として取り出されることを特徴と
する焼結方法。 （Ｖ）熔鉄（１５３８°〜２８００℃、還元雰囲気）に
投入された混合物或は焼結混合物は直ち に構成原子に分解（吸熱）或はイオン化（吸熱）すると
同時に系内には生成物質の原子或はイオン結合（発熱）
が同時誘発され、該分解（吸熱）並びに結合（発熱）が
連続的に繰り返され、その過程に於て、イオン結合（発
熱）による流化物或は流酸塩は熔融温度並びにその比重
差によりて、熔鉄（１５３８°〜２８００°Ｃ）還元雰
囲気）系中を浮上してスラグ中に吸収されることにより
、熔鉄は脱硫脱酸されることを特徴とする熔鉄脱硫脱酸
方法。 （VI）特許請求の範囲（ I ）中のＡｌ、Ｃａ、Ｍｇ、
を陽イオン化傾向の強い原子と変更した場合の特許請求
の範囲。[Scope of Claims] (I) Al, Ca, Mg hydroxides, oxides, etc. may be used alone or as a mixture (hereinafter referred to as a mixture) in any proportion; is contained in the mixture in an arbitrary proportion. (II) A mixture (hereinafter referred to as a sintered mixture) composed of an arbitrary particle size distribution of a sintered body obtained by sintering the mixture according to claim (I) Molten iron desulfurization deoxidizer. (III) The apparatus for manufacturing a sintered body (hereinafter referred to as a furnace) according to claim (II) is of a rigid type, and is constructed of a cylindrical shape, a conical shape, or a combination thereof, and has a ceiling (7 ), and the exhaust gas discharge port (50) of the exhaust gas discharge pipe (5) is located at the center thereof.
), and a high-temperature hot air inlet (15) in the center of the bottom.
A sintered body outlet (13) is arranged concentrically around it, and an appropriate number of mixture inlet ports (6-1) and an auxiliary hot air inlet (6-2) are installed at the top in a tangential direction to the inner wall surface of the furnace. A sintered body manufacturing apparatus characterized in that it is immediately installed and can blow a mixture and hot air into it. (III) In the furnace of claim (III), induced by the mixture from the mixture inlet (6-1) and hot air blown from the hot air inlets (15) and (6-2). The mixture is dehydrated, oxidized, and sintered in a swirling spouted bed of a solid-gas phase at a high temperature in the furnace center (hereinafter referred to as the core) and a low temperature inside the furnace wall.
13) A sintering method characterized in that a sintered body having a uniform weight and a spherical shape is taken out by the principle of air sieving using upward hot air. (V) The mixture or sintered mixture introduced into molten iron (1538° to 2800°C, reducing atmosphere) is immediately decomposed into its constituent atoms (endothermic) or ionized (endothermic), and at the same time atoms of the produced substance are present in the system. Or ionic bond (heat generation)
are simultaneously induced, and the decomposition (endothermic) and bonding (exothermic) are repeated continuously, and in the process, the fluid or sulfate due to ionic bonding (exothermic) changes due to the difference in melting temperature and specific gravity. A method for desulfurizing and deoxidizing molten iron, characterized in that molten iron is desulfurized and deoxidized by floating in a molten iron (1538° to 2800° C. reducing atmosphere) system and being absorbed into slag. (VI) Al, Ca, Mg in claim (I),
Claims in the case where is changed to an atom with a strong tendency to cationize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61179868A JPS6338515A (en) | 1986-08-01 | 1986-08-01 | Molten iron desulfurizing and deoxidizing agent, its production and method for desulfurizing and deoxidizing molten iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61179868A JPS6338515A (en) | 1986-08-01 | 1986-08-01 | Molten iron desulfurizing and deoxidizing agent, its production and method for desulfurizing and deoxidizing molten iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6338515A true JPS6338515A (en) | 1988-02-19 |
Family
ID=16073314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61179868A Pending JPS6338515A (en) | 1986-08-01 | 1986-08-01 | Molten iron desulfurizing and deoxidizing agent, its production and method for desulfurizing and deoxidizing molten iron |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6338515A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10568787B2 (en) | 2014-08-19 | 2020-02-25 | Ferno-Washington, Inc. | Cot fastening system having a crash stable, cot fastener track and method of affixing an emergency cot thereto |
-
1986
- 1986-08-01 JP JP61179868A patent/JPS6338515A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10568787B2 (en) | 2014-08-19 | 2020-02-25 | Ferno-Washington, Inc. | Cot fastening system having a crash stable, cot fastener track and method of affixing an emergency cot thereto |
| US11458050B2 (en) | 2014-08-19 | 2022-10-04 | Ferno-Washington, Inc. | Cot fastening system having a crash stable, cot fastener track and method of affixing an emergency cot thereto |
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