| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | SLAG DISCHARGE DOOR DEVICE FOR AN ELECTRIC FURNACE | US13989711 | 2011-08-30 | US20130250996A1 | 2013-09-26 | Joon-Seong Ki; Jin-III Hwang |
| The present invention relates to a slag discharge door device for an electric furnace, wherein slag is prevented from flowing out via a slag discharge port by making a discharge control door body move up and down to and from the upper surface of a supporting body where slag is discharged by flowing to the upper surface, and the discharge of slag is controlled, such that during steel-making work in the electric furnace, the outflow of slag is prevented and heat losses are reduced, the efficiency of arc heat due to the formation of foamed slag is increased, and valuable metals are recovered from the molten slag thereby increasing the percentage of molten steel recovered. | ||||||
| 42 | Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals | US13439654 | 2012-04-04 | US08470069B2 | 2013-06-25 | Franklin Leroy Stebbing |
| A method of using scrap rubber and other scrap materials, such as tires or parts or pieces of tires, to manufacture or melt steel and other metals in a furnace is disclosed. The scrap rubber may be used as a carbon source for the manufacture of steel and other metals, and may be used as an energy source to melt the scrap metal used to make the steel and other metals. The net benefit of this method includes reducing the amount of scrap rubber, such as tires, to be sent to a waste disposal facility or landfill, thereby improving the environment. In addition, by increasing the use of scrap rubber as a source of energy for steel or metal production, less energy is required from other sources. | ||||||
| 43 | Titanium-containing additive | US12374073 | 2007-08-02 | US08287837B2 | 2012-10-16 | Djamschid Amirzadeh-Asl |
| A titanium-containing additive, a method for its production and methods of using the additive. | ||||||
| 44 | Methods of Using Tires and Scrap Rubber in the Manufacture and Melting of Steel and Other Metals | US13439654 | 2012-04-04 | US20120192678A1 | 2012-08-02 | Franklin Leroy Stebbing |
| A method of using scrap rubber and other scrap materials, such as tires or parts or pieces of tires, to manufacture or melt steel and other metals in a furnace is disclosed. The scrap rubber may be used as a carbon source for the manufacture of steel and other metals, and may be used as an energy source to melt the scrap metal used to make the steel and other metals. The net benefit of this method includes reducing the amount of scrap rubber, such as tires, to be sent to a waste disposal facility or landfill, thereby improving the environment. In addition, by increasing the use of scrap rubber as a source of energy for steel or metal production, less energy is required from other sources. | ||||||
| 45 | Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals | US13022741 | 2011-02-08 | US08152894B2 | 2012-04-10 | Franklin Leroy Stebbing |
| A method of using scrap rubber and other scrap materials, such as tires or parts or pieces of tires, to manufacture or melt steel and other metals in a furnace is disclosed. The scrap rubber may be used as a carbon source for the manufacture of steel and other metals, and may be used as an energy source to melt the scrap metal used to make the steel and other metals. The net benefit of this method includes reducing the amount of scrap rubber, such as tires, to be sent to a waste disposal facility or landfill, thereby improving the environment. In addition, by increasing the use of scrap rubber as a source of energy for steel or metal production, less energy is required from other sources. | ||||||
| 46 | Production of ferro-alloys | US12596772 | 2008-05-07 | US08070849B2 | 2011-12-06 | Veena Sahajwalla |
| A method for producing a ferro-alloy in an electric arc furnace is disclosed. The method comprises the steps of removing steel from a carbon-containing organic material, and charging the furnace with the carbon-containing organic material product. | ||||||
| 47 | METHOD FOR PRODUCING FOAMED SLAG | US13043708 | 2011-03-09 | US20110154946A1 | 2011-06-30 | Djamschid AMIRZADEH-ASL; Dieter Fünders |
| A method of producing foamed slag in an arc furnace by measured blowing of a carbon carrier by means of an oxygen carrier into the boundary layer between the slag and molten metal layers or into zones of the slag or molten metal layer adjacent to the boundary layer in an amount such that arc are enveloped at least by a foamed slag layer. | ||||||
| 48 | Method for the Production of a Foamed Slag in a Metal Bath | US12223416 | 2007-01-15 | US20090255375A1 | 2009-10-15 | Johann Reichel; Lutz Rose; Miroslav Karbowniczek |
| The invention relates to a method for producing a foamed slag (1) on a metal bath (2) in a metallurgical furnace (3). According to said method, a mixture (4) containing at least one metal oxide and carbon is introduced into the furnace (3), the metal oxide is reduced by means of the carbon below the slag (1) that is located there, and the gases produced during the reduction process form bubbles such that the slag is foamed. In order to optimize the formation of foamed slag, the mixture (4) is delivered into the furnace (3) in such a way that a desired height (h) or a desired section of the height (h) of the layer of foamed slag (1) is generated or maintained. | ||||||
| 49 | Process and device for direct production of steel from iron-containing materials | US11090389 | 2005-02-23 | US20060011013A1 | 2006-01-19 | Issaak Bourovoi |
| Process and device for direct continuous steel production out of iron-containing materials using usual power coals as fuel and reducer. It is provided to carry out the process in a single reaction space comprising a layer of liquid refining metal present under a layer of liquid slag comprising iron-containing materials to be processed and droplets of reduces metal so that an intermediate emulsion layer “slag-gas-metal” is designated in between the said layers. In an upper slag layer fuel is burnt and finely grained iron-containing materials are reduced according to coke-free technology of cast-iron production with carbon content at the level of ˜4.5-4.8%; iron oxides and reduced metal droplets are transferred from slag layer into intermediate emulsion layer; iron oxides are decomposed and oxygen is isolated together with oxygen-containing gas supplied to emulsion layer. Refining process proliferates to lower refining layer and carbon oxide isolated during refining stimulates reduction processes in slag layer. Basic structure of the device with single reaction space can be adapted to different technological problems and peculiarities of properties in iron-containing materials processed. The solution proposed permits to obtain steel with carbon content within the limits of 0.2-2.0% and with permissible content of admixtures having specific productivity of the device up to 2.0-2.5 t/m2 of bottom per hour and productivity of a single unit equal to 50,000-5000 000 t/year. | ||||||
| 50 | Process for the production of metal melts | US09893729 | 2001-06-29 | US06508853B2 | 2003-01-21 | Stefan Dimitrov; Norbert Ramaseder; Wilfried Pirklbauer; Yoyou Zhai; Johannes Steins; Ernst Fritz; Johannes Müller |
| To be able to produce metal melts using any metal carriers incurring in metallurgical practice as the charging materials, namely in the most diverse quantitative compositions, a plant for producing metal melts is provided with the following characteristic features: an electric arc furnace vessel (1) provided with one charging opening (11, 21) for a metal melt and/or scrap and/or direct reduced metal, in particular direct reduced iron, and/or ore and at least one electrode (16) and one slag tapping means (22), an oxygen-blowing converter vessel (3) provided with one melt tapping means (41), wherein the oxygen-blowing converter vessel (3) and the electric arc furnace vessel (1) form a unit which is connected via an overflow weir (34) and which is rigidly mounted on the foundation and, wherein the bath surface related specifically to the bath volume is smaller in the oxygen-blowing converter vessel (3) than in the electric arc furnace vessel (1) and the oxygen-blowing converter vessel (3) shares a common reaction space with the electric arc furnace vessel (1), which space is arranged above the bath level of these vessels. | ||||||
| 51 | Measuring the thickness of hot slag in steelmaking | US135617 | 1998-08-18 | US6130637A | 2000-10-10 | Gregory A. Meszaros; Roger Marquart; David J. Walker; John G. Estocin; Frank L. Kemeny |
| Radar is used to measure not only the level of slag on molten steel but also its thickness; the measurement is used to calculate the volume of slag, and, in turn the amount of additives for slag treatment. | ||||||
| 52 | Method and composition for foaming slag in electric arc furnace | US507767 | 1983-06-27 | US4447265A | 1984-05-08 | John W. Schwer |
| A slag-foaming composition and process for use in electric arc furnace steelmaking. The compositions comprise from about 15 to 80 wt % of a carbon source, the remainder consisting substantially of a source of an oxide of calcium; alternatively, the compositions comprise from about 15 to 30 wt % of a carbon source, the remainder consisting substantially of dolomite lime. The process consists of the addition, in the course of steelmaking using an electric arc furnace, of the steelmaking additive compositions of the invention to the charge subsequent to the initial scrap steel melt down. | ||||||
| 53 | A method for controlling the foaming slag of stainless molten metal in the electric arc furnace | JP2011524178 | 2009-08-07 | JP5608651B2 | 2014-10-15 | ライヒェル，ヨハン |
| 54 | Foam manufacturing apparatus foam, metal foam preparation and the foam metal of the manufacturing apparatus using the foam | JP2010525774 | 2009-08-21 | JP5176156B2 | 2013-04-03 | ジェ リー，ホ; ユン パク，ヒュン; ウォン ヤン，ドン |
| 55 | Improvements in the production of ferro-alloys | JP2010506775 | 2008-05-07 | JP2010526213A | 2010-07-29 | シャハジワラ，ビーナ |
| 電気アーク炉中でフェロアロイを製造するための方法が開示される。 この方法は、炭素含有有機材料から鋼鉄を除去するステップと、この炭素含有有機材料生成物を炉に装入するステップとを含む。 | ||||||
| 56 | Titanium-containing additive | JP2009522282 | 2007-08-02 | JP2009545672A | 2009-12-24 | アミルザデー−アスル ジャムシド |
| 本発明の主題は、チタン含有添加剤、その製造方法及びその使用である。 | ||||||
| 57 | How to generate a foaming slag in the molten metal | JP2008552708 | 2007-01-15 | JP2009525402A | 2009-07-09 | カルボフニチェック・ミロスワフ; ライヒェル・ヨーハン; ローゼ・ルッツ |
| 本発明は、冶金炉（３）中で金属溶融物（２）の上に発泡スラグ（１）を生成する方法であって、少なくとも一種の金属酸化物及び炭素を含む混合物（４）を炉（３）中に投入し、この際、そこに存在するスラグ（１）の下で、前記金属酸化物が炭素によって還元され、そしてこの還元で生じたガスがスラグ中に気泡を形成させ、それによってこのスラグが発泡される方法に関する。 発泡スラグの形成を最適に行うために、本発明では、炉（３）への混合物（４）の装入は、発泡スラグ（１）の層の所望の高さ（ｈ）または発泡スラグ（１）の層の高さ（ｈ）の所望の範囲が生ずるかまたは維持されるように行われることが定めされる。 | ||||||
| 58 | Method for manufacturing steel from iron carbide and equipment | JP51982296 | 1995-12-05 | JPH10510882A | 1998-10-20 | アキレス・バシリコス; アセシ・ケー・センハ; ゴードン・エッチ・ガイガー; ジユ・ツ |
| (57)【要約】 炭化鉄から鋼を生成するための２ステージ型の反応か、分離されかつ相互に関連する二つの反応装置（１，３６）内で実行される。 第１の反応装置（１）においては、スラグ生成物とともに炭化鉄が供給端（２）に供給される。 そして、容器の幾何学的形状、酸素の液面下への導入と炭化鉄の供給による作用、および液体金属浴（９）からのガスの発生によって、反応は十分に混合される。 約０．５〜２％の炭素を含有する生成物は第２の反応装置（３６）に供給され、該装置（３６）内で液面化導入の酸素により精錬される。 第２の反応は自己生産的であり、発生した一酸化炭素は第１の反応装置（１）に供給され、該装置（１）において泡状のスラグ内で酸素により燃焼する。 このことは、第１の反応装置（１）内で発生した一酸化炭素を含むスラグ内での燃焼後燃焼と、第１の反応により発生するオフガス（排気）のかなりの熱で予熱される炭化鉄とともに、当該反応をも本質的に自己生産的なものにしている。 | ||||||
| 59 | Method for judging slag foaming in electric furnace steel-making and operation of electric furnace | JP3461397 | 1997-02-19 | JPH10226812A | 1998-08-25 | UEDA ARATA; NAKAHARA TOYOHITO; YAMASHITA KATSUTOSHI |
| PROBLEM TO BE SOLVED: To judge and adjust the condition of slag foaming and to enable stable production of a low nitrogen steel by measuring NO x content in exhaust gas at refining and temp. raising period of molten steel in producing the molten steel from iron scrap in an arc type electric furnace. SOLUTION: Main raw material composed of iron scrap and one or more kinds among molten pig iron, solid pig iron, reduced iron and iron carbide, are heated and melted in the arc type electric furnace 1 with the arc 4 generated between an upper electrode 2 and furnace bottom electrodes 3. At this time, in the melting period of the main raw material, a slag removing hole 5 in the furnace is fully closed and the sucking quantity of the air into the furnace is restrained to the min. limit and the absorption of nitrogen into the molten steel 10 is made to the min. In the melting and temp. raising period, gas consisting essentially of CO in the furnace is generated and NO x is generated at the spot part, too. A part of the exhaust gas is sucked and the NO x content in the gas is measured with an NO x meter, and the invasion of the air into the arc spot is detected. COPYRIGHT: (C)1998,JPO | ||||||
| 60 | JPH0471965B2 - | JP24712188 | 1988-09-30 | JPH0471965B2 | 1992-11-17 | UMEZAWA KAZUMASA; OZAWA KOSAKU; NUIBE TSUZURI; KUWABARA TATSURO; OOHARA TETSUYA |
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