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公开(公告)号：US4655146A
公开(公告)日：1987-04-07
申请号：US636680
申请日：1984-08-01
申请人： Jerome H. Lemelson
发明人： Jerome H. Lemelson
IPC分类号： B01J8/08 , B01J8/10 , C21B13/08 , F23C15/00 , F23G5/08 , F23G5/20 , F23G5/24 , F23G5/46 , F23G5/50 , F23G5/26
CPC分类号： F23C15/00 , B01J8/087 , B01J8/10 , C21B13/08 , F23G5/085 , F23G5/20 , F23G5/245 , F23G5/46 , F23G5/50 , B01J2208/00061 , B01J2208/0007 , B01J2208/00088 , B01J2208/00203 , B01J2208/00504 , B01J2219/187 , F23B2900/00004 , Y02E20/12 , Y02P10/34
摘要： An apparatus and method for continuously treating material for performing such functions as burning, roasting, smelting, coking, melting, high temperature chemical reactions and the like in a combustion chamber wherein the chamber or an extension thereof, is tuned to permit combustion gases therein to resonate and to thereby effect maximum combustion efficiency. In particular, the invention concerns controllably varying the geometry of the combustion chamber, such as the length of a pipe or tubed section thereof in accordance with the variables of combustion occuring therein, so as to optimize efficiency of combustion and the reaction which takes place between the burning material and the material being treated or reacted on. In addition to effecting such reactions, the apparatus is also operable to effect the transfer of the heat of combustion to a heat transfer medium, such as water for generating steam or other form of heat transfer medium to maximize the utilization of the energy generated.
摘要翻译： 在燃烧室中连续处理材料以进行燃烧，焙烧，熔炼，焦化，熔化，高温化学反应等功能的设备和方法，其中调节室或其延伸部以允许其中的燃烧气体 共振并由此产生最大的燃烧效率。 特别地，本发明涉及可控地改变燃烧室的几何形状，例如根据其中发生的燃烧变量的管道或管段的长度，以便优化燃烧效率和发生在 燃烧材料和被处理或反应的材料。 除了实现这种反应之外，该装置还可操作地实现将燃烧热传递到传热介质，例如用于产生蒸汽或其它形式的传热介质的水，以最大限度地利用所产生的能量。
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公开(公告)号：US4378244A
公开(公告)日：1983-03-29
申请号：US317939
申请日：1981-11-03
申请人： James A. Kennelley , Geoffrey N. Boulter , Alan C. Baker , Thomas W. Goodell , Daniel H. Wilbert
发明人： James A. Kennelley , Geoffrey N. Boulter , Alan C. Baker , Thomas W. Goodell , Daniel H. Wilbert
CPC分类号： C21B13/08 , Y02P10/216
摘要： A method and means for improved control of the process for directly reducing materials containing iron oxides in a rotary kiln using a solid carbonaceous reducing agent, such as coal, introduced from the charge feed and discharge ends of the kiln, as the source of both fuel and reductant, and oxygen-containing gas introduced along the kiln length, is disclosed wherein the portion of the reducing agent fed at the discharge end is injected in the form of two or more streams through the discharge end of the kiln onto the charge bed in such manner as to permit close and efficient control of the process, particularly when carried out in larger kilns. The important features in creating and distributing the streams over the bed are described including their longitudinal distribution and axial spread, as well as their contact regions with the kiln interior side walls and the quadrants of the kiln barrel into which they are directed, to meet the incremental heat demands along the successive segments of the charge bed, whereby the bed and gas phase temperatures may be controlled and heat transfer to the bed enhanced.
摘要翻译： 一种用于直接还原含有铁氧化物的材料的方法和方法，该方法和方法是使用从电荷进料和窑排出端引入的固体碳质还原剂（例如煤）作为两种燃料源 和还原剂以及沿窑长引入的含氧气体，其中在排出端供给的还原剂的部分以两种或多种流的形式通过窑的排出端注入到电荷床上 这种方式允许对过程进行密切和有效的控制，特别是在较大的窑炉中进行时。 描述了在床上产生和分配流的重要特征，其包括它们的纵向分布和轴向扩展，以及它们与窑内侧壁和它们所指向的窑桶的象限的接触区域，以满足 沿着充电床的连续段的增量热需求，由此床和气相温度可以被控制并且对床的热传递增强。
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63.发明授权Method for achieving low sulfur levels in the DRI product from iron oxide reducing kilns 失效从氧化铁还原窑中获得DRI产品中低硫含量的方法
公开(公告)号：US4378241A
公开(公告)日：1983-03-29
申请号：US203275
申请日：1980-11-03
IPC分类号： C21B13/08
CPC分类号： C21B13/08 , Y02P10/216
摘要： A method for maintaining the sulfur level below 0.05% by weight, and preferably below 0.02% by weight, in the DRI product from the process for directly reducing ore containing iron oxides in a rotary kiln using a solid carbonaceous reducing agent, fed at the materials feed end and at the discharge end of the kiln, as both fuel and reductant is disclosed, identifying the important factors in the process affecting the sulfur levels in the DRI and steps and means for properly controlling these factors.
摘要翻译： 在使用固体碳质还原剂的直接还原含铁氧化物的矿石的方法的DRI产物中，将硫含量维持在0.05重量％以下，优选低于0.02重量％的方法， 进料端和在窑的排放端，公开了燃料和还原剂，鉴定了影响DRI中硫含量的过程中的重要因素，以及适当控制这些因素的步骤和手段。
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公开(公告)号：US4337084A
公开(公告)日：1982-06-29
申请号：US132806
申请日：1980-03-24
申请人： Vitie P. Keran , Alan C. Baker
发明人： Vitie P. Keran , Alan C. Baker
IPC分类号： C21B13/08
CPC分类号： C21B13/08 , Y02P10/216
摘要： A method and means for improving the efficiency of the process for directly reducing ore containing iron oxide in a rotary kiln using a solid carbonaceous reducing agent, such as coal, introduced from the ore feed and discharge ends of the kiln, as both fuel and reductant, is disclosed wherein the charred coal or char found in the discharge product is recycled into the process at the discharge end of the kiln rather than the feed end as in the prior art. In particular, the recovered char, both coarse and finer particles, are transported to a recycle bin from which they are returned at a preselected rate to the kiln process by being injected along with the coal blown into the discharge end of the kiln. Alternatively, the recycle char alone may be fed without any coal at the discharge end of the kiln.
摘要翻译： 一种用于提高直接还原含铁氧化物的方法和方法的方法和方法，其使用从矿石进料和窑的排出端引入的固体碳质还原剂如煤，作为燃料和还原剂 ，其中在排放产物中发现的烧焦煤或焦炭在现有技术中在窑的排放端而不是进料端循环进入该过程。 特别地，回收的炭，粗颗粒和更细的颗粒被运送到回收箱，通过与吹入窑的排出端的煤一起注入，回收箱以预选的速率返回到窑工艺。 或者，单独的再循环炭可以在窑排放端没有任何煤进料。
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公开(公告)号：US4310299A
公开(公告)日：1982-01-12
申请号：US146810
申请日：1980-05-05
摘要： Disclosed is a method for firing a kiln as well as a method for producing cement clinker in which pulverized coal is initially entrained in an airflow of about 2% of the theoretical amount of air needed to combust the coal and transport it to a burner. Supplemental primary air heated sufficiently to vaporize volatiles in the coal is mixed with the coal flow in a burner, discharged into the kiln and hence ignited. Secondary combustion air heated to between 800.degree. F. to 1650.degree. F. and more is added in the kiln to effect the substantially complete combustion of the pulverized coal in the kiln.
摘要翻译： 公开了一种烧制窑炉的方法以及一种生产水泥熟料的方法，其中粉煤最初被夹带在燃烧煤并将其运送到燃烧器所需的理论空气量的约2％的气流中。 补充的一次空气被充分地加热以使煤中的挥发物蒸发，与燃烧器中的煤流混合，排放到窑中并因此点燃。 加热到800°F至1650°F的二次燃烧空气，并且在窑中加入更多的空气，以使窑炉中的粉煤基本上完全燃烧。
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公开(公告)号：US4304597A
公开(公告)日：1981-12-08
申请号：US132309
申请日：1980-03-20
申请人： Vitie P. Keran , Alan C. Baker
发明人： Vitie P. Keran , Alan C. Baker
IPC分类号： C21B13/08
CPC分类号： C21B13/08 , Y02P10/216
摘要： A method and means for improving control of the process for directly reducing ores containing iron oxide in a rotary kiln using a solid carbonaceous reducing agent, such as coal, introduced from the ore feed and discharge ends of the kiln, as both fuel and reductant, is disclosed wherein the temperature profile of the moving bed of solids is maintained such that the temperature is moderated to remain below the sintering temperature of the materials in the bed from the feed end zone for about the first two-thirds of the kiln length and the temperature is then maximized within sintering limitations in the working zone which is limited to about the last third of the kiln length. The temperature profile is controlled by regulating the volumes of air supplied to the kiln atmosphere from air injectors at spaced intervals along the length of the kiln, after establishing the appropriate proportion of coal steadily blown into the discharge end of the kiln for the particular process constituents being used.
摘要翻译： 一种用于直接还原含有氧化铁的矿石的方法和方法，该方法和方法使用从矿石进料和窑的排出端引入的固体碳质还原剂如煤，作为燃料和还原剂， 公开了其中固体移动床的温度分布保持使得温度被调节以保持低于来自进料端区的床中的材料的烧结温度约为炉膛长度的第一三分之二和 然后在工作区的烧结限制范围内将温度最大化，限制在窑长度的最后三分之一。 温度曲线是通过调整从空气喷射器供应到空气喷射器的空气的体积，沿着窑的长度间隔开的时间，在确定适当比例的煤稳定地吹入窑的排出端之后，为特定的工艺成分 正在使用。
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公开(公告)号：US4179280A
公开(公告)日：1979-12-18
申请号：US898256
申请日：1978-04-20
申请人： Gerhard Reuter , Wolfram Schnabel , Harry Serbent
发明人： Gerhard Reuter , Wolfram Schnabel , Harry Serbent
IPC分类号： C21B13/08
CPC分类号： C21B13/08 , Y02P10/136
摘要： A process for directly reducing iron oxide-containing materials to provide sponge iron by heating said iron oxide-containing materials in a rotary kiln while employing a solid carbonaceous reducing agent having a high content of volatile combustible components, wherein oxygen-containing gases are injected into the rotary kiln at a controlled rate through shell pipes into the free kiln space and the charge is moved through the rotary kiln countercurrently to the flow of the kiln atmosphere, is described. The invention lies in injecting oxygen-containing gases at controlled rates through nozzle blocks into the charge disposed over said nozzle blocks and in injecting oxygen-containing gases at controlled rates through shell pipes into the free kiln space in that region of the heating-up zone defined by a point along the length of the heating-up zone where ignitable particles of the solid reducing agent first appear and a second point before the reducing zone.
摘要翻译： 一种直接还原含铁氧化物的材料以通过在回转窑中加热所述含氧化铁的材料以提供海绵铁的方法，同时使用具有高含量挥发性可燃组分的固体碳质还原剂，其中含氧气体被注入 描述了回转窑以受控的速率通过壳管进入自由窑空间，并且将电荷与回转窑逆流地移动到窑气的流动。 本发明在于通过喷嘴块将控制速率的含氧气体注入到设置在所述喷嘴块上的电荷中，并通过壳管将含氧气体以受控的速率注入到加热区域的自由窑空间中 由沿着加热区长度的点定义，其中首先出现固体还原剂的可点燃颗粒，并且在还原区之前的第二点。
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公开(公告)号：US3993471A
公开(公告)日：1976-11-23
申请号：US610745
申请日：1975-09-05
申请人： Ryoichi Yoshimura , Takashi Shoji
发明人： Ryoichi Yoshimura , Takashi Shoji
CPC分类号： C21B13/08 , C21B13/0046 , C21B13/006 , C21B13/0066 , C21B13/008 , C22B1/243 , C22B5/10
摘要： Reduced pellets are manufactured by mixing a powdered raw metallurgical ore such as of iron, chromium or manganese with a carbonaceous reducing material obtained by heat-treating anthracite, at temperatures between 600.degree. C and 1000.degree. C and subsequently pulverizing the heat-treated anthracite, pelletizing the resultant mixture and thereafter roasting the pellets.
摘要翻译： 减少的颗粒是通过将诸如铁，铬或锰的粉末原料冶金矿石与通过热处理无烟煤获得的碳质还原材料在600℃和1000℃之间的温度下混合并随后粉碎经热处理的无烟煤， 将所得混合物造粒，然后焙烧该颗粒。
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公开(公告)号：US3945624A
公开(公告)日：1976-03-23
申请号：US397081
申请日：1973-09-13
申请人： Eugene F. Rossi
发明人： Eugene F. Rossi
摘要： A process and apparatus are disclosed for delivering fuel and air to a rotary reduction kiln wherein both the fuel and air alternately flow through the same fluid distribution nozzle. Means are provided about the kiln for operating means to alternately deliver of fuel or air through the same nozzle. At least one of the operating means is selectively movable into and out of the position of operating said valve.
摘要翻译： 公开了一种用于将燃料和空气输送到旋转还原窑的方法和装置，其中燃料和空气都交替地流过相同的流体分配喷嘴。 提供关于窑的装置，用于操作装置以通过相同的喷嘴交替地输送燃料或空气。 操作装置中的至少一个可选择性地移动进入和离开操作所述阀的位置。
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公开(公告)号：US3890138A
公开(公告)日：1975-06-17
申请号：US40715673
申请日：1973-10-17
申请人： WESTERN TITANIUM N L
发明人： HOCKIN HARRY WILLIAM
CPC分类号： C21B13/006 , C21B13/08 , Y02P10/136
摘要： A process for the reduction of iron ores and ores of other metals containing iron such as ilmenite using a high volatile non-caking coal as the reductant and fuel characterized in that part of the coal is added at the discharge end of the kiln in such a manner that it is distributed along the length of the kiln to within the kiln feed end zone of the kiln and so that substantially no coal is incorporated in the bed within at least the last 15% of the kiln length, and in that the remainder of the coal is added at the feed end of the kiln.
摘要翻译： 使用高挥发性非结块煤作为还原剂和燃料来还原含有铁的其它金属如钛铁矿的铁矿石和矿石的方法，其特征在于，在窑的排放端以这种方式加入部分煤 使其沿着窑的长度分布到窑的窑进料端区内，并且使得至少在窑长度的最后15％内基本上不将煤结合到床中，并且其余的 在窑的进料端加入煤。
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