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    • 32. 发明申请
    • DIRECT REDUCTION PROCESS USING A SINGLE FLUIDISED BED
    • 使用单流化床的直接还原过程
    • WO2005116280A1
    • 2005-12-08
    • PCT/EP2005/005472
    • 2005-05-20
    • OUTOKUMPU TECHNOLOGY OYORTH, AndreasEICHBERGER, HeinzPHILP, Donald, KeithDRY, Rod
    • ORTH, AndreasEICHBERGER, HeinzPHILP, Donald, KeithDRY, Rod
    • C22B5/14
    • C21B13/002C21B13/0033C21B2100/282C21B2100/44C21B2100/64C21B2100/66C22B5/14Y02P10/122Y02P10/126Y02P10/136
    • A direct reduction process for a metalliferous material comprises supplying the metalliferous material, a solid carbonaceous material, an oxygen-containing gas, and a fluidising gas into a fluidised bed in a vessel and maintaining the fluidised bed in the vessel, at least partially reducing metalliferous material in the vessel, and discharging a product stream that comprises the at least partially reduced metalliferous material from the vessel. The process is characterised by: (a) reducing the metalliferous material in a solid state in a metal-rich zone in the vessel; (b) injecting the oxygen-containing gas into a carbon-rich zone in the vessel with a downward flow in a range of plus or minus 40 degrees to the vertical and generating heat by reactions between oxygen and the metalliferous material (including metallised material), the solid carbonaceous material and other oxidisable solids and gases in the fluidised bed, and (c) transferring heat from the carbon-rich zone to the metal-rich zone by movement of solids within the vessel. The metal-rich zone is formed in a lower section of the vessel and the carbon-rich zone is an intermediate section below an upper section of the vessel. Oxygen-containing gas is injected into a central region of the vessel.
    • 用于含金属材料的直接还原方法包括将含金属材料,固体碳质材料,含氧气体和流化气体供应到容器中的流化床中并将流化床保持在容器中,至少部分地还原金属 并且从容器排出包含至少部分还原的含金属材料的产品流。 该方法的特征在于:(a)在容器中的金属富集区中还原固态的含金属材料; (b)将含氧气体注入容器中的富含碳的区域,其向下垂直于垂直于或等于40度的范围,并通过氧气和含金属材料(包括金属化材料)之间的反应产生热量, ,固体碳质材料和流化床中的其它可氧化固体和气体,以及(c)通过容器内固体的移动将热量从富碳区转移到富含金属的区域。 金属富集区形成在容器的下部,富碳区是在容器的上部下方的中间部分。 将含氧气体注入容器的中心区域。
    • 33. 发明申请
    • PROCESS AND PLANT FOR REDUCING SOLIDS CONTAINING IRON OXIDE
    • 用于还原含氧化铁的固体的方法和设备
    • WO2005014866A3
    • 2005-03-31
    • PCT/EP2004007904
    • 2004-07-16
    • OUTOKUMPU OYSNEYD STUARTHIRSCH MARTINNUBER DIRK
    • SNEYD STUARTHIRSCH MARTINNUBER DIRK
    • C21B13/00C22B1/248C22B5/14C22B5/18
    • C22B5/18C21B13/0033C21B13/008C21B13/0086C22B1/248C22B5/14Y02P10/136
    • This invention relates to a process for reducing solids containing iron oxide, such as iron ore, in which fine-grained solids are heated and at least partly calcined in a pre heating stage (2, 9). In a first fluidized-bed reactor (14) downstream of the preheating stage (2, 9), the solids are prereduced and reduced further in a second fluidized-bed reactor (16). Downstream of the second reactor (16) a briquetting stage (20) is pro vided, in which the solids are briquetted at a temperature above 500°C To increase the energy efficiency of the process and improve the flowability of the solids in the briquetting stage (20), magnesite is added to the preheating stage (2, 9) together with the solids containing iron oxide, which magnesite is at least partly calcined in the preheating stage (2, 9) to obtain magnesium oxide. Furthermore, the invention relates to a corresponding plant.
    • 本发明涉及一种用于减少含有氧化铁(例如铁矿石)的固体的方法,其中细粒固体在预加热阶段(2,9)中被加热并且至少部分地被煅烧。 在预热阶段(2,9)下游的第一流化床反应器(14)中,将固体预还原并在第二流化床反应器(16)中进一步还原。 在第二反应器(16)的下游提供压块阶段(20),其中固体在高于500℃的温度下压块。为了提高该过程的能量效率并且改进在压块阶段中固体的流动性 (20)中,将菱镁矿与含有氧化铁的固体一起加入到预热阶段(2,9)中,该菱镁矿在预热阶段(2,9)中至少部分地煅烧以获得氧化镁。 此外,本发明涉及相应的设备。
    • 35. 发明申请
    • DEVICE FOR DIRECTLY REDUCING ORE FINE AND INSTALLATION FOR CARRYING OUT SAID METHOD
    • 程序用于实现过程中直接还原粉矿和安装
    • WO02000943A1
    • 2002-01-03
    • PCT/AT2001/000207
    • 2001-06-27
    • C21B13/00C21B13/14C22B1/10C22B5/14
    • C21B13/0033C21B13/14C22B1/10C22B5/14Y02P10/136
    • The invention relates to a method for directly reducing, by way of a fluidized bed method, ore fine that comprises at least one ore component from the group of the magnetite, hydrated, carbonate or sulfide ores. The ore fine is heated in a heating fluidized bed zone which is operated with a heating medium, and said heating medium is combusted. The ore is then transferred to at least one reducing fluidized bed zone in which the synthesis gas is fed as the reducing gas to the ore fine in a counter-current and is removed as a top gas, the ore fine being reduced in said zone to sponge iron. In the heating fluidized bed zone the ore fine is specifically heated up by combustion of the heating medium while oxygen or an oxygen-containing gas is additionally fed to adjust oxidizing conditions, and the hydrate, carbonate and/or sulfide groups are removed and/or converted to hematite. At least a part of the top gas is used as a recycled reducing gas for the direct reduction in the reducing fluidized bed zone.
    • 在用于直接还原粉矿的方法,包括选自磁铁矿至少一种矿石成分,水螅图解carbonatic或硫化物矿石,在流化床中的方法,其中所述细矿石是在根据加热介质的燃烧用加热介质加热流化床区域施加在至少加热,然后一 减少流化床区花费,被引入到合成气作为逆流到细矿石的还原性气体和排出作为顶部的气体和在其中细矿石的还原进行到海绵铁是在除了通过加热介质的燃烧粉矿的目标加热的加热流化床区,用另外的 为了调整进行的水合物,碳酸盐和/或硫化物基团和/或转化成赤铁矿和至少顶部气体的一部分的分离的氧化条件氧气或含氧气体的进料 LS循环还原气体在还原流化床区中采用的直接还原。
    • 37. 发明申请
    • CARBOTHERMIC PROCESS FOR PRODUCTION OF METALS
    • 用于生产金属的热处理工艺
    • WO01034858A1
    • 2001-05-17
    • PCT/NO2000/000379
    • 2000-11-10
    • C01B33/025C22B5/10C22B5/14C22B21/00C22B26/22C22B21/02
    • C01B33/025C22B5/10C22B5/14C22B21/0053C22B26/22
    • A carbothermal process for the production of metals such aluminium, silicon, magnesium and the like from metal compounds, characterised in that the metal compound(s) such as oxide(s) or hydroxides are heated by combustion gases and internal friction between the particles in the feed generated by mechanical forces from the jet gases within a process chamber, together with either free water or water-forming chemcials in the aluminium compound(s) and carbon and/or oil and/or natural gas in such manner that the material in the reactor chamber behaves like a hot mechanical established fluidised bed whereby the water can be split into hydroxyl and hydrogen radicals, making the hydrogen radicals react with the oxygen in the hot and now unstable aluminium compound(s) and thus replacing aluminium atoms, and the hydroxyl radical retracting back to water and the surplus of oxygen reacting with carbon to CO.
    • 用于从金属化合物生产金属如铝,硅,镁等的碳热法,其特征在于金属化合物如氧化物或氢氧化物被燃烧气体加热,并且颗粒之间的内部摩擦 由来自处理室内的喷气的机械力产生的进料与铝化合物中的游离水或成水化学物质以及碳和/或油和/或天然气以使得材料在 反应室的行为类似于热机械建立的流化床,由此水可以分成羟基和氢自由基,使氢自由基与热和现在不稳定的铝化合物中的氧反应,从而代替铝原子, 羟基自由基回缩回水,剩余的氧气与碳反应成CO。
    • 38. 发明申请
    • 2-STAGE FLUIDIZED BED TYPE FINE IRON ORE REDUCING APPARATUS, AND REDUCING METHOD USING THE APPARATUS
    • 2级流化床类型精细铁矿石减少装置,减少使用装置的方法
    • WO00079013A1
    • 2000-12-28
    • PCT/KR1999/000325
    • 1999-06-21
    • C21B13/00C21B13/14C22B5/14
    • C21B13/002C21B13/0033C21B13/14C21B2100/44C21B2100/66Y02P10/136Y02P10/212
    • A 2-Stage fluidized bed type reducing apparatus and a reducing method for fine iron ore of a wide particle size distribution with increasing the reducing gas utilization degree are disclosed. Fine iron particles dropping through the holes of a gas distributor (102, 202) can be recycled into the fluidized bed type furnace, thereby preventing an impediment of the reducing gas flow due to abnormal defluidizing or channeling. A first fluidized bed type furnace (100) dries, pre-heats and pre-reduces the fine iron ore, and a second fluidized bed type furnace (200) finally reduces the pre-reduced iron ore. Downstream of the respective fuidized beds, there are installed intermediate hoppers (500, 600) and gas/solid sealing valves (501, 503, 601, 603). Thus the fine iron ore particles which drop through the holes of gas distributors (102, 202) during the abnormal operation are recycled to the furnaces (100, 200). Accordingly the gas flow is not impeded.
    • 本发明公开了一种2阶流化床型还原装置及其还原方法,其具有扩大粒度分布的细铁矿石的还原气体利用度。 通过气体分配器(102,202)的孔落下的细小铁颗粒可以再循环到流化床式炉中,从而防止由于异常流体流动或流道引起的还原气流的阻碍。 第一流化床型炉(100)干燥,预热和预还原细铁矿石,第二流化床型炉(200)最终减少预还原的铁矿石。 在各个加油床的下游,安装有中间料斗(500,600)和气/固密封阀(501,503,601,603)。 因此,在异常操作期间掉落通过气体分配器(102,202)的孔的细铁矿石颗粒被再循环到炉(100,200)中。 因此,气流不受阻碍。
    • 39. 发明申请
    • METHOD FOR REFORMING REDUCING GAS IN A FLUIDIZED BED PROCESS FOR REDUCTION OF ORE
    • 用于减少流化床处理中还原气体的方法
    • WO99028511A1
    • 1999-06-10
    • PCT/IB1998/002131
    • 1998-12-01
    • C21B13/00C22B5/14C21B11/00
    • C21B13/0033Y02P10/122Y02P10/126Y02P10/128Y02P10/136Y02P10/143
    • A method for reforming reducing gas in a fluidized bed process for reduction of ore in a series of ore reducing reactors, including the steps of: passing ore through a plurality of reducing reactors (10, 12) including a final reactor (10) and at least one upstream reactor (12); flowing a reducing gas through the final reactor (10) so as to reduce ore in the final reactor (10) whereby a flow of partially spent reducing gas including methane and metallized iron dust exits the final reactor (10); mixing an oxygen source with the partially spent reducing gas so as to combust a portion of the methane with the oxygen source in the presence of the metallized iron dust and provide a reformed reducing gas; and flowing the reformed reducing gas to the upstream reactor (12).
    • 一种用于在一系列矿石还原反应器中用于还原矿石的流化床方法中的还原气体重整方法,包括以下步骤:使矿石通过包括最终反应器(10)在内的多个还原反应器(10,12) 至少一个上游反应器(12); 使还原气体流过最终反应器(10),以便减少最终反应器(10)中的矿石,由此包括甲烷和金属化铁粉的部分耗尽的还原气体的流出口流到最终的反应器(10); 将氧源与部分耗尽的还原气体混合,以便在金属化铁粉的存在下将一部分甲烷与氧源一起燃烧并提供重整的还原气体; 并将重整的还原气体流入上游反应器(12)。
    • 40. 发明申请
    • A PROCESS AND APPARATUS FOR TREATING PARTICULATE MATTER
    • 一种处理颗粒物的方法和装置
    • WO99016541A1
    • 1999-04-08
    • PCT/GB1998/002924
    • 1998-09-29
    • B01J8/00B01J8/32B01J8/36B01J8/38C04B11/028C22B1/10F27B15/00C01B33/38C22B5/14
    • B01J8/36B01J8/0015B01J8/32B01J8/38B01J2208/00442C04B11/0283C22B1/10F27B15/00Y10S423/16C04B11/05
    • The present invention provides a process for treating a particulate material, in which particles of the material to be treated interact with non-static particles of a second material, the process comprising the steps of: (i) providing a processing chamber (1) having an inlet (7) and an outlet (10) spaced downstream therefrom, the base (15) of said chamber comprising a plurality of outwardly radiating inclined vanes (20, 25), (ii) providing a host bed of particles (30) in the chamber (1) and generating a flow of fluid through the vanes (20, 25) at the base (15) of the processing chamber such that the bed of host particles (30) circulates about an axis (102) of the chamber in a compact band, (iii) injecting particles of the material to be treated through an inlet (5) of the chamber (1) to contact with the circulating bed of the host particles (30), wherein the relative terminal velocity of the particles to be treated (45) and the host particles (30) is such that there is little or substantially no migration of the host particls to the outlet (10), and wherein substantially all of the particles of the material to be treated migrate downstream through the circulating host particles to the outlet (10).
    • 本发明提供了一种处理颗粒材料的方法,其中待处理材料的颗粒与第二材料的非静态颗粒相互作用,该方法包括以下步骤:(i)提供处理室(1),其具有 入口(7)和与其间隔开的出口(10),所述腔室的基部(15)包括多个向外辐射的倾斜叶片(20,25),(ii)提供颗粒(30)的主体床 所述腔室(1)并且通过处理室的基部(15)处的叶片(20,25)产生流体流,使得主体颗粒床(30)围绕腔室的轴线(102)循环 (iii)通过所述腔室(1)的入口(5)将待处理材料的颗粒注入以与所述主体颗粒(30)的循环床接触,其中所述颗粒的相对末端速度 被处理(45)和主体颗粒(30)使得存在很少或次要的 宿主颗粒不会迁移到出口(10),并且其中待处理材料的基本上所有的颗粒通过循环主体颗粒向下游流到出口(10)。