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公开(公告)号：US20090136887A1
公开(公告)日：2009-05-28
申请号：US12067422
申请日：2006-10-10
IPC分类号： F27B9/16
摘要： PROBLEM TO BE SOLVED: To provide a rotary hearth furnace which has a simple furnace structure in which the furnace is not damaged even if the furnace is operated for a long term while presenting general equations capable of adequately determining a thermal expansion margin in the rotary hearth furnace.SOLUTION: Between the corner refractory of the outer circumference side or the inner circumference side and the refractory, or between the refractories, a radius direction thermal expansion margin X defined by the following equation 2 is set, and if a width of the outer circumference side corner refractory 7 is given as A and a height of the hearth curb casting 11 of the corner refractory 7 is given as B, the following equation 1 is satisfied: X+A
摘要翻译： 要解决的问题：提供一种具有简单的炉结构的转底炉，即使炉长期运行也不会损坏炉子，同时具有能够适当地确定转炉的热膨胀裕度的一般方程式 炉。 解决方案：在外周侧或内周侧的角部耐火材料与耐火材料之间或在耐火材料之间设定由以下等式2限定的半径方向热膨胀裕度X，如果外周侧的宽度 拐角耐火材料7为A，角耐火材料7的炉底边缘铸件11的高度为B，满足以下等式1：＆lt;线内公式描述=“在线公式”结束= “lead”？> X + A <√（A2 + B2）等式1 <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In X =（[X 0 =]外周侧炉底边缘铸件11的外端部与内周侧炉底边缘铸件12的内端部之间的距离，线状公式“end =”lead“ 操作温度） - （[X1 =]多个耐火材料6和拐角耐火材料7和8在室温下的半径方向上的总长度） 公式2 <？in-line-formula description =“In-line Formulas”end =“tail”？>
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公开(公告)号：US07032526B2
公开(公告)日：2006-04-25
申请号：US10223367
申请日：2002-08-20
CPC分类号： F23G5/12 , F23G5/02 , F23G5/26 , F23G5/46 , F23G5/50 , F23G2203/805 , F23G2207/30 , F23L7/007 , F23L9/02 , Y02E20/344
摘要： The present invention can provide a method for combustion treatment capable of efficiently treating combustible waste, and a combustion treatment apparatus capable of realizing such a method. The present invention can further provide a method for combustion treatment capable of efficiently treating even combustible waste containing a generation source of a volatile hazardous component, and a combustion treatment apparatus capable of realizing this. Furthermore, the present invention can provide a method for combustion treatment capable of efficiently recovering and making effective use of the heat of an exhaust gas discharged during a treatment of combustible waste, and a combustion treatment apparatus capable of realizing this. The aforementioned method for combustion treatment is a method for treating combustible waste, in which the combustible waste is subjected to combustion treatment in a rotary hearth furnace.
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公开(公告)号：US20110011209A1
公开(公告)日：2011-01-20
申请号：US12934453
申请日：2009-03-24
CPC分类号： C21C5/35
摘要： A method for producing molten iron by melting an iron source material using an iron bath-type melting furnace comprising a top-blowing lance at an upper part of the furnace, a bottom-blowing tuyere in the bottom of the furnace and a tap hole at a lower part on the side of the furnace, the method comprising: a melting process of charging the iron source material, a carbonaceous material and a flux into the furnace and top-blowing an oxygen-containing gas through the top-blowing lance while blowing an inert gas through the bottom-blowing tuyere into melt present in the furnace to stir the melt to thereby melt the iron source material and generate the molten iron and slag using combustion heat of combusting carbon in the carbonaceous material and/or in the molten iron, wherein the melting process has at least one tapping process of discharging the molten iron and the slag through the tap hole while holding a position of the furnace in generating the molten iron, and the tapping process continues or interrupts generation of the molten iron and continues top-blowing of the oxygen-containing gas to thereby keep a temperature of the molten iron in the furnace at or above a pre-set lowest temperature of the molten iron.
摘要翻译： 一种使用铁浴式熔融炉熔化铁源材料的方法，所述铁浴型熔炉包括炉顶部的顶吹喷枪，炉底部的底吹风口， 在炉的一侧的下部，该方法包括：将铁源材料，碳质材料和助熔剂装入炉中并通过顶吹喷枪吹送含氧气体同时吹送的熔融过程 将通过底吹风口的惰性气体熔化成存在于炉中的熔体，以搅拌熔体，从而熔化铁源材料，并使用碳质材料和/或铁水中燃烧碳的燃烧热产生铁水和炉渣 其中熔融过程具有至少一个排出铁水和炉渣通过排出孔同时保持炉子产生铁水的位置的出钢过程，并且出钢过程co 指示或中断铁水的产生并继续顶吹含氧气体，从而使炉中的铁水的温度保持在铁水的预设最低温度以上。
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公开(公告)号：US08206487B2
公开(公告)日：2012-06-26
申请号：US12670741
申请日：2008-07-25
申请人： Hiroshi Sugitatsu
发明人： Hiroshi Sugitatsu
摘要： A method for producing carbon composite metal oxide briquettes includes a mixing step of adding a binder to a metal oxide raw material and a carbonaceous material and mixing the metal oxide raw material, the carbonaceous material, and the binder by a mixer to prepare a powder mixture, and a forming step of forming the powder mixture into carbon composite metal oxide briquettes by using a briquetting machine, in which, in the mixing step, a batch mixer is used as the mixer.
摘要翻译： 一种碳复合金属氧化物团块的制造方法，其特征在于，在金属氧化物原料和碳质材料中添加粘合剂并通过混合机将金属氧化物原料，碳质材料和粘合剂混合，制成粉末混合物 以及通过使用压块机将粉末混合物形成为碳复合金属氧化物团块的成形步骤，其中在混合步骤中使用间歇式混合器作为混合器。
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公开(公告)号：US08101007B2
公开(公告)日：2012-01-24
申请号：US12670942
申请日：2008-07-24
CPC分类号： C22B7/02 , B30B9/328 , C21B13/0046 , C21B13/006 , C21B13/0066 , C21B13/105 , C21B2200/00 , C21C5/38 , C22B1/245 , C22B1/248 , C22B5/10 , C22B5/16 , C22B19/28 , C22B19/34 , C22B19/38 , Y02P10/216
摘要： The method includes the steps of: adding a carbonaceous material B and a binder C, and optionally water, to electric furnace dust A generated in a steelmaking electric furnace 1, to form a powdery mixture D having a water content of 0.5 to 3 mass %; compacting the powdery mixture D into a raw briquette E; and charging the raw briquette without drying into a rotary hearth furnace 5 and thermally reducing the raw briquette to obtain a reduced iron briquette F and a crude zinc oxide G.
摘要翻译： 该方法包括以下步骤：将含碳材料B和粘合剂C以及任选的水添加到炼钢电炉1中产生的电炉灰A中，以形成水含量为0.5-3质量％的粉末混合物D， ; 将粉状混合物D压实成生坯B; 并将原料团块不加干燥并装入转底炉5中并热还原生坯团块以获得还原铁团块F和粗氧化锌G.
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公开(公告)号：US07922484B2
公开(公告)日：2011-04-12
申请号：US12067422
申请日：2006-10-10
摘要： To provide a rotary hearth furnace which has a simple furnace structure in which the furnace is not damaged even if the furnace is operated for a long term while presenting general equations capable of adequately determining a thermal expansion margin in the rotary hearth furnace.
摘要翻译： 为了提供一种具有简单的炉结构的转炉式炉，即使炉长期运行也不会损坏炉子，同时具有能够适当地确定转底炉的热膨胀裕度的一般方程式。
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27.发明授权Method of producing stainless steel by re-using waste material of stainless steel producing process 失效通过再利用不锈钢生产工艺废料生产不锈钢的方法公开(公告)号：US07175691B2
公开(公告)日：2007-02-13
申请号：US10438013
申请日：2003-05-15
申请人： Hiroshi Sugitatsu , Itsuo Miyahara
发明人： Hiroshi Sugitatsu , Itsuo Miyahara
CPC分类号： C21B13/0046 , C21B13/006 , C21C5/005 , C21C5/36 , C21C5/5264 , C21C5/54 , C21C5/56 , C22B1/005 , C22B1/24 , C22B1/245 , C22B1/248 , C22B5/16 , C22B7/001 , C22B7/02 , C22B19/30 , Y02P10/214 , Y02P10/216 , Y02P10/23 , Y02P10/232
摘要： A method of producing stainless steel includes the steps of melting a raw material in an electric furnace to form molten steel, and then refining the molten steel by a refining furnace to produce stainless steel in a stainless steel producing process. In the method, a carbonaceous reducing agent is added to a zinc-containing waste material produced in the stainless steel producing process, the resultant mixture is agglomerated by a briquette press to form agglomerates incorporated with a carbonaceous material, the agglomerates incorporated with the carbonaceous material are heated in a rotary hearth furnace to reduce and evaporate zinc to form dezincified agglomerates, and then the dezincified agglomerates are charged as a coolant in an oxidation period of the refining furnace.
摘要翻译： 制造不锈钢的方法包括以下步骤：在电炉中熔化原料以形成钢水，然后通过精炼炉精炼钢水，以不锈钢生产工艺生产不锈钢。 在该方法中，将碳质还原剂添加到在不锈钢生产方法中生产的含锌废料中，所得混合物通过压块压块结块以形成结合有碳质材料的附聚物，所述附聚物与碳质材料 在旋转炉床炉中加热以减少和蒸发锌以形成脱锌凝聚体，然后在精炼炉的氧化期间将脱锌团聚体作为冷却剂加入。
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公开(公告)号：US06585800B2
公开(公告)日：2003-07-01
申请号：US10205401
申请日：2002-07-26
IPC分类号： C22B900
CPC分类号： C21B13/0013 , C21B13/14 , C21C5/567
摘要： In a method for making molten metal, reduced metal which is produced in a direct reduction furnace is melted in a melting furnace located in the close vicinity of the direct reduction furnace to produce the molten metal. The method includes the steps of putting the reduced metal into a metallic container, and loading the container containing the reduced metal into the melting furnace. The method may further includes, before the step of loading the container containing the reduced metal into the melting furnace, a step of cooling the surface of the container so that the surface temperature of the container is 500° C. or less.
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公开(公告)号：US08506880B2
公开(公告)日：2013-08-13
申请号：US13056985
申请日：2009-08-06
IPC分类号： C21B11/00
CPC分类号： F27D3/14 , C21C5/35 , C21C5/462 , C21C5/4653 , C21C5/4673 , C21C7/072 , C21C2005/468 , F27D3/15 , F27D3/1527 , Y02P10/212
摘要： An iron melting furnace has a refractory lined furnace body having a top opening through which raw materials including a raw material iron source, a carbonaceous material and a slag forming material may be introduced. A heating system is provided for injecting oxygen-containing gas into the furnace body to combust the carbonaceous material, whereby combustion heat can melt the raw material iron source to generate molten iron and molten slag to form a molten iron and slag bath. A plurality of tap holes penetrate the furnace body and are provided at positions different from one another in a height direction of the furnace body, and a refractory filling which is different from the refractory liner material fills at least one of the tap holes such that molten iron or slag in the furnace is unable to flow through the tap hole being filled with the refractory material.
摘要翻译： 铁熔炉具有耐火材料内衬炉体，其具有顶部开口，通过该顶部开口可以引入包含原料铁源，碳质材料和成渣材料的原料。 提供一种加热系统，用于将含氧气体注入到炉体中以燃烧碳质材料，由此燃烧热量可以熔化原料铁源以产生铁水和熔渣以形成铁水和渣槽。 多个抽头孔穿过炉体并且设置在炉体的高度方向上彼此不同的位置处，并且与耐火材料衬里材料不同的耐火材料填充物填充至少一个分接孔，使得熔融 炉子中的铁或炉渣不能流过填充有耐火材料的抽头孔。
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公开(公告)号：US08475561B2
公开(公告)日：2013-07-02
申请号：US12934453
申请日：2009-03-24
CPC分类号： C21C5/35
摘要： A method for producing molten iron by melting an iron source material using an iron bath-type melting furnace comprising a top-blowing lance at an upper part of the furnace, a bottom-blowing tuyere in the bottom of the furnace and a tap hole at a lower part on the side of the furnace, the method comprising: a melting process of melting the iron source material, wherein the melting process has at least one tapping process of discharging the molten iron and the slag through the tap hole while holding a position of the furnace in generating the molten iron, and the tapping process continues or interrupts generation of the molten iron and continues top-blowing of the oxygen-containing gas to thereby keep a temperature of the molten iron in the furnace at or above a pre-set lowest temperature of the molten iron.
摘要翻译： 一种使用铁浴式熔融炉熔化铁源材料的方法，所述铁浴型熔炉包括炉顶部的顶吹喷枪，炉底部的底吹风口， 所述方法包括：熔融所述铁源材料的熔融过程，其中所述熔化过程具有至少一个排出铁水和所述炉渣通过所述分接孔同时保持位置的排出过程 的炉子产生铁水，并且攻丝过程继续或中断铁水的产生，并继续顶吹含氧气体，从而将炉中的铁水的温度保持在炉内等于或高于预定温度， 设定铁水的最低温度。
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