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1. 发明授权

US4134794A Method for producing non-abrasive coke forms from brown-coal briquets 失效
标题翻译：从褐煤砖生产非磨料焦炭形式的方法
公开(公告)号：US4134794A
公开(公告)日：1979-01-16
申请号：US837448
申请日：1977-09-28
申请人： Kurt Lorenz , Horst Dungs , Peter Speich
发明人： Kurt Lorenz , Horst Dungs , Peter Speich
IPC分类号： C10B53/08 , C10B17/00 , C10B21/02 , C10B21/12
CPC分类号： C10B53/08
摘要： The coke forms are produced in four stages, each constituted by a respective oven chamber, and in which the briquets are, respectively, preheated, dehydrated or dried, carbonized and cooled. Hot gas circuits are provided, in which the hot gas is composed substantially of burnt lean gas of the carbonization, and, for each stage, the hot gases are recirculated in a separate respective circuit. In the preheating, dehydrating and carbonization stages, the hot gases are heated and produced, or supplemented, in a respective separate combustion chamber with the recirculating hot gas in the carbonization stage being supplemented with cooled lean gas from this stage. The recirculating hot gases are dedusted separately in a dust settling chamber in which their flow velocity is reduced to approximately 0.2 to 2.0 m/sec, with the dust being collected. Steam may be added to the recirculating hot gas of the preheating stage, drying stage, or both, and the pressure in the hot gas circuits is maintained at a level slightly higher than atmospheric pressure. The oven chambers are arranged as a vertical oven block plant and the oven chambers are interconnected with each other by transition zones which are conically narrowed to approximately one half of the cross section of the chamber and then widened up to the full cross section. The hot gas inlets are provided in the transition zones at the lower ends of the oven chambers, and the hot gas outlets are provided in the transition zones at the upper ends of the chambers. The dust settling chambers are provided immediately adjacent the hot gas outlets, and the carbonization chamber is surrounded by its combustion chamber to form an operating unit. SPCROSS-REFERENCE TO RELATED APPLICATIONSThis is a continuation of application Ser. No. 660,153, filed Feb. 23, 1976, now abandoned.
摘要翻译：焦炭形式分四个阶段生产，每个阶段分别由相应的烘箱室构成，其中将砖块分别预热，脱水或干燥，碳化和冷却。提供了热气体回路，其中热气体基本上由碳化的燃烧的贫气组成，并且对于每个阶段，热气体在单独的相应回路中再循环。在预热，脱水和碳化阶段，热气体在相应的单独的燃烧室中被加热和生产或补充，碳化阶段中的再循环热气体从该阶段补充冷却的贫气。再循环的热气体在灰尘沉降室中单独除尘，其中它们的流速降低到约0.2至2.0m / sec，灰尘被收集。可以将蒸汽加入到预热段，干燥阶段或两者的再循环热气体中，并且将热气回路中的压力保持在略高于大气压的水平。烤箱室被布置成垂直的烤箱装置，并且烤箱室通过过渡区彼此互连，过渡区被锥形变窄到室的横截面的大约一半，然后被加宽到整个横截面。热气体入口设置在烘箱室的下端的过渡区域中，热气体出口设置在室的上端的过渡区域中。灰尘沉降室紧邻热气出口设置，碳化室由其燃烧室包围以形成操作单元。

2. 发明授权

US4115202A Apparatus for producing non-abrasive coke forms from brown-coal briquets 失效
标题翻译：用于从褐煤砖生产非磨料焦炭形式的装置
公开(公告)号：US4115202A
公开(公告)日：1978-09-19
申请号：US833645
申请日：1977-09-15
申请人： Kurt Lorenz , Horst Dungs , Peter Speich , Roman Kurtz
发明人： Kurt Lorenz , Horst Dungs , Peter Speich , Roman Kurtz
IPC分类号： C10B1/04 , C10B3/00 , C10B53/08 , C10B3/02 , C10B21/02
CPC分类号： C10B53/08 , C10B1/04 , C10B3/00
摘要： The coke forms are produced in four stages, each constituted by a respective oven chamber, and in which the briquets are, respectively, preheated, dehydrated or dried, carbonized and cooled. Hot gas circuits are provided, in which the hot gas is composed substantially of burnt lean gas of the carbonization, and, for each stage, the hot gases are recirculated in a separate respective circuit. In the preheating, dehydrating and carbonization stages, the hot gases are heated and produced, or supplemented, in a respective separate combustion chamber with the recirculating hot gas in the carbonization stage being supplemented with cooled lean gas from this stage. The recirculating hot gases are dedusted separately in a dust settling chamber in which their flow velocity is reduced to approximately 0.2 to 2.0 m/sec, with the dust being collected. Steam may be added to the recirculating hot gas of the preheating stage, drying stage, or both, and the pressure in the hot gas circuits is maintained at a level slightly higher than atmospheric pressure. The oven chambers are arranged as a vertical oven block plant and the oven chambers are interconnected with each other by transition zones which are conically narrowed to approximately one half of the cross section of the chamber and then widened up to the full cross section. The hot gas inlets are provided in the transition zones at the lower ends of the oven chambers, and the hot gas outlets are provided in the transition zones at the upper ends of the chambers. The dust settling chambers are provided immediately adjacent the hot gas outlets, and the carbonization chamber is surrounded by its combustion chamber to form an operating unit.
摘要翻译：焦炭形式分四个阶段生产，每个阶段分别由相应的烘箱室构成，其中将砖块分别预热，脱水或干燥，碳化和冷却。提供了热气体回路，其中热气体基本上由碳化的燃烧的贫气组成，并且对于每个阶段，热气体在单独的相应回路中再循环。在预热，脱水和碳化阶段，热气体在相应的单独的燃烧室中被加热和生产或补充，碳化阶段中的再循环热气体从该阶段补充冷却的贫气。再循环的热气体在灰尘沉降室中单独除尘，其中它们的流速降低到约0.2至2.0m / sec，灰尘被收集。可以将蒸汽加入到预热段，干燥阶段或两者的再循环热气体中，并且将热气回路中的压力保持在略高于大气压的水平。烤箱室被布置成垂直的烤箱装置，并且烤箱室通过过渡区彼此互连，过渡区被锥形变窄到室的横截面的大约一半，然后被加宽到整个横截面。热气体入口设置在烘箱室的下端的过渡区域中，热气体出口设置在室的上端的过渡区域中。灰尘沉降室紧邻热气出口设置，碳化室由其燃烧室包围以形成操作单元。

3. 发明授权

US3954444A Process for the direct reduction of iron ores 失效
标题翻译：直接还原铁矿石的工艺
公开(公告)号：US3954444A
公开(公告)日：1976-05-04
申请号：US442987
申请日：1974-02-15
申请人： Werner Wenzel , Peter Speich , Friedrich H. Franke , Burkhardt Dreyer
发明人： Werner Wenzel , Peter Speich , Friedrich H. Franke , Burkhardt Dreyer
IPC分类号： C21B13/00 , C21B13/02 , C21B5/06
CPC分类号： C21B13/0073 , C21B13/02 , C21B2100/02 , C21B2100/04 , Y02P10/122 , Y02P10/128 , Y02P10/136
摘要： A process for the direct reduction of iron ores using a reducing gas mixture which is passed through a shaft furnace containing the ore to be reduced is disclosed. The process is characterized in that the partial flow of reducing gas mixture is removed from the furnace approximately at the point of transition between the magnetite and Wustite stages of the ore and is regenerated. The regenerated reducing gas is then reapplied to the furnace with a fresh reducing gas mixture resulting in a substantial energy saving.
摘要翻译：公开了一种使用还原气体混合物直接还原铁矿石的方法，该还原气体混合物通过含有待还原矿石的竖炉。该方法的特征在于，大约在矿石的磁铁矿和钨矿阶段之间的过渡点，从炉中除去还原气体混合物的部分流，并再生。然后将再生的还原气体用新鲜的还原气体混合物重新施加到炉中，导致显着的节能。

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