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1. 发明授权

US3799521A Method and apparatus for the gaseous reduction of iron ore to sponge iron 失效
标题翻译：用于气体还原铁对海绵铁的方法和装置
公开(公告)号：US3799521A
公开(公告)日：1974-03-26
申请号：US32871273
申请日：1973-02-01
申请人： FIERRO ESPONJA
发明人： MAC KAY P , CELADA J , VILLARREAL D
IPC分类号： C21B13/00 , C21B13/02
CPC分类号： C21B13/0073 , C21B13/029 , C21B2100/22 , C21B2100/44 , C21B2100/64 , C21B2100/66 , Y02P10/136
摘要： Method and apparatus for reducing particulate metal ore, e.g., iron ore, to metal particles, e.g., sponge iron, in a vertical shaft, moving bed reactor having a reduction zone and a cooling zone wherein separate streams of reducing gas and cooling gas are used in the reduction and cooling zones, respectively, and means are provided for minimizing commingling of the two gas streams. In one embodiment a differential pressure controller is used to maintain substantially equal the gas pressure at the bottom of the reduction zone and the gas pressure at the top of the cooling zone. In another embodiment the flows of inlet gas to and outlet gas from the cooling zone are controlled to maintain these two flows substantially equal. Either or both of the reducing gas and cooling gas may be recycled in a closed loop.
摘要翻译：减少颗粒金属矿石，例如铁矿石的方法和设备，在垂直轴中的金属颗粒，例如海绵铁，具有还原区的移动床反应器和冷却区，其中使用分离的还原气体和冷却气体流分别在还原和冷却区中，并且提供了用于最小化两种气流的混合的装置。在一个实施例中，使用差压控制器来保持在还原区底部的气体压力和冷却区顶部的气体压力基本相等。在另一个实施例中，来自冷却区的入口气体和出口气体的流动被控制以保持这两个流量基本相等。还原气体和冷却气体中的任一种或两者可以在闭环中再循环。

2. 发明授权

US3770421A Method and apparatus for controlling the composition of a reducing gas used to reduce metal ores 失效
标题翻译：用于控制用于减少金属矿石的还原气体组成的方法和装置
公开(公告)号：US3770421A
公开(公告)日：1973-11-06
申请号：US3770421D
申请日：1971-11-22
申请人： FIERRO ESPONJA
发明人： VILLASENOR A , GARCIA G , MARTINEZ E , CELADA J , MAC KAY P
IPC分类号： C21B13/02 , C21B13/00 , C22B5/12 , C21B13/14
CPC分类号： C21B13/0073 , C21B2100/22 , C21B2100/64 , Y02P10/136
摘要： Apparatus and method are described for controlling the addition of steam to recycled gas circulating in a closed loop including the reduction zone of a reactor and a catalytic reformer of a system for gaseous reduction of particulate metal ores to metal wherein the recycled gas is measured to determine flow rate and gaseous composition and the measurements are utilized in an electronic circuit to generate an input signal for a steam controller.
摘要翻译：描述了装置和方法，用于控制将蒸汽添加到在包括反应器的还原区和用于将金属矿颗粒气态还原为金属的系统的催化重整器的闭合回路中循环的循环，其中测量再循环气体以确定流量和气体组成，并且在电子电路中利用测量值来产生用于蒸汽控制器的输入信号。

3. 发明授权

US3710808A Pressure lock for feeding particulate material to and removing it from a pressure vessel 失效
标题翻译：用于将颗粒材料送入并从压力容器中取出的压力锁
公开(公告)号：US3710808A
公开(公告)日：1973-01-16
申请号：US3710808D
申请日：1970-09-08
申请人： FIERRO ESPONJA
发明人： CELADA J , MAC KAY P
IPC分类号： B65G53/46 , F16K1/20 , F27D3/00 , F27D3/10 , F16K45/00 , C21B13/00
CPC分类号： F27D3/10 , B65G53/4658 , B65G53/4691 , F16K1/221 , F16K1/223 , F16K1/224 , F27D3/0032 , Y10T137/0318 , Y10T137/86324
摘要： A pressure lock for feeding particulate iron ore to a moving bed, gaseous reduction sponge iron reactor and removing sponge iron therefrom comprising a pressure hopper with valve assemblies at the inlet and outlet thereof. Each valve assembly comprises a pair of valves, one of which performs a flow control function and the other of which performs a pressure sealing function. The construction is such that contact between the flowing material and the sealing surfaces of the sealing valve is avoided, thereby eliminating abrasion and erosion of these surfaces and prolonging the effective life of the pressure lock.
摘要翻译：用于将微粒铁矿石供给到移动床的压力锁，气态还原海绵铁反应器和从其中除去海绵铁，其包括在其入口和出口处具有阀组件的压力漏斗。每个阀组件包括一对阀，其中一个阀执行流量控制功能，另一个执行压力密封功能。该结构使得避免了流动材料与密封阀的密封面之间的接触，从而消除了这些表面的磨损和侵蚀并延长了压力锁的有效寿命。

4. 发明授权

US3827879A Method for the gaseous reduction of metal ores 失效
标题翻译：金属矿的气体还原方法
公开(公告)号：US3827879A
公开(公告)日：1974-08-06
申请号：US33467073
申请日：1973-02-22
申请人： FIERRO ESPONJA
发明人： MAC KAY P , MARTINEZ E , CELADA J , PENA J , DE LA TORRE M
IPC分类号： C21B13/00 , C21B13/04 , C21B13/02
CPC分类号： C21B13/0073 , C21B13/04 , C21B2100/26 , C21B2100/64 , Y02P10/136 , Y02P10/143
摘要： A METHOD FOR THE GASEOUS REDUCTION OF IRON ORE TO SPONGE IRON IN A MULTI-STAGE REACTOR SYSTEM COMPRISING A REDUCED AND A COOLING REACTOR CONTAINING A FIXED BED OF REDUCED AND A COOLING REACTOR CONTAINING A FIXED BED OF REDUCED ORE TO BE COOLED, WHEREIN SEPARATE CIRCUITS ARE ESTABLISHED FOR RECYCLING GAS THROUGH EACH REACTOR, NATURAL GAS OR METHANE IS FED TO ONE OF SAID CIRCUITS AND PARTIALLY OXIDIZED TO FORM A REDUCING GAS MIXTURE CONSISTING ESSENTIALLY OF 14 TO 40% CARBON MONOXIDE, 4 TO 40% CARBON DIOXIDE, 14 TO 50% HYDROGEN AND 10 TO 60% METHANE, REDUCING GAS IS CONTINUOUSLY TRANSFERRED FROM ONE OF SAID CIRCUITS TO THE OTHER AND CONTINUOUSLY REMOVED FROM THE OTHER OF SAID CIRCUITS. A REDUCTION PLANT HAVING A HIGH

YIELD OF SPONGE IRON PER HOUR PER CUBIC FOOT OF REDUCTION SPACE IS ACHIEVED, AT RELATIVELY LOW CAPITAL OUTLAY AND THE PLANT CAN BE EASILY SCALED UP FROM SAY 20 TONS PER DAY TO 1,200 TONS PER DAY.

5. 发明授权

US3765872A Method and apparatus for the gaseous reduction of iron ore to sponge iron 失效
标题翻译：用于气体还原铁对海绵铁的方法和装置
公开(公告)号：US3765872A
公开(公告)日：1973-10-16
申请号：US3765872D
申请日：1970-12-16
申请人： FIERRO ESPONJA
发明人： CELADA J , VILLARREAL D , MAC KAY P
IPC分类号： C21B13/00
CPC分类号： C21B13/0073 , C21B2100/64 , Y02P10/136
摘要： Method and apparatus for reducing particulate metal ore, e.g., iron ore, to metal particles, e.g., sponge iron, in a vertical shaft, moving bed reactor having a reduction zone and a cooling zone wherein separate streams of reducing gas and cooling gas are used in the reduction and cooling zones, respectively, and means are provided for minimizing commingling of the two gas streams. In one embodiment a differential pressure controller is used to maintain substantially equal the gas pressure at the bottom of the reduction zone and the gas pressure at the top of the cooling zone. In another embodiment the flows of inlet gas to and outlet gas from the cooling zone are controlled to maintain these two flows substantially equal. Either or both of the reducing gas and cooling gas may be recycled in a closed loop.
摘要翻译：减少颗粒金属矿石，例如铁矿石的方法和设备，在垂直轴中的金属颗粒，例如海绵铁，具有还原区的移动床反应器和冷却区，其中使用分离的还原气体和冷却气体流分别在还原和冷却区中，并且提供了用于最小化两种气流的混合的装置。在一个实施例中，使用差压控制器来保持在还原区底部的气体压力和冷却区顶部的气体压力基本相等。在另一个实施例中，来自冷却区的入口气体和出口气体的流动被控制以保持这两个流量基本相等。还原气体和冷却气体中的任一种或两者可以在闭环中再循环。

6. 发明授权

US3816102A Method and apparatus for reducing particulate metal ores to sponge metal and cooling the reduced metal 失效
标题翻译：用于减少金属颗粒和金属的冷却金属的方法和装置
公开(公告)号：US3816102A
公开(公告)日：1974-06-11
申请号：US20241171
申请日：1971-11-26
申请人： FIERRO ESPONJA
发明人： MARTINEZ E , CELADA J , MACKAY P
IPC分类号： C21B13/02 , C21B13/00 , F27B1/00 , F27B5/16
CPC分类号： C21B13/0073 , C21B2100/22 , C21B2100/64 , Y02P10/136
摘要： A method and apparatus are disclosed for achieving improved reduction efficiency in the reduction of particulate metal ores, e.g., iron ore, in a vertical shaft, moving bed reactor having a reduction zone in which a hot reducing gas is caused to flow through a portion of the ore bed to reduce the metal ore thereof to metal, e.g., sponge iron, and a cooling zone in which a gaseous coolant is caused to flow through the reduced metal to cool it. Both the reducing gas and cooling gas are recycled to the reactor in loops that are interconnected and a split flow of reducing gas in the reduction zone is used. Make-up reducing gas is supplied to the interconnected loops and depleted reducing gas is vented therefrom. A method and apparatus for controlling gas flow in the several loops of the reduction system are also disclosed.
摘要翻译：公开了一种方法和装置，用于在垂直轴中减少微粒金属矿石（例如铁矿石）的降低效率，具有减少区域的移动床反应器，其中使热还原气体流过一部分矿床将金属矿石还原成金属，例如海绵铁，以及使气态冷却剂流过还原金属以冷却其的冷却区。还原气体和冷却气体都被再循环到反应器中，该环路互连，并且使用还原区域中的分离的还原气体流。补充还原气体被供应到互连的环路中，并且从其排出贫化的还原气体。还公开了一种用于控制还原系统的几个回路中的气流的方法和装置。

7. 发明授权

US3779741A Method for reducing particulate metal ores to sponge iron with recycled reducing gas 失效
标题翻译：将颗粒金属矿石还原成具有回收还原气体的海绵铁的方法
公开(公告)号：US3779741A
公开(公告)日：1973-12-18
申请号：US3779741D
申请日：1971-10-15
申请人： FIERRO ESPONJA
发明人： CELADA J , MACKAY P , DE LA PENA R
IPC分类号： C21B13/02 , C21B13/00
CPC分类号： C21B13/0073 , C21B13/029 , C21B2100/64 , Y02P10/136 , Y02P10/212
摘要： A method and apparatus is disclosed for achieving improved reduction efficiency in the reduction of particulate metal ores, e.g., iron ore, in a vertical shaft, moving bed reactor having a reduction zone in which a hot reducing gas is caused to flow through a portion of the ore bed to reduce the metal ore thereof to metal, e.g., sponge iron. The improved efficiency is achieved by using a splitflow of reducing gas to the reduction zone of the reactor. In one embodiment of the invention separate reducing gas streams are supplied to the top and bottom of the reduction zone and combined near the center of the reduction zone and removed from the reactor. In another embodiment of the invention reducing gas is fed to a point near the center of the reduction zone, caused to flow both upwardly and downwardly through the ore in the reduction zone and removed at points near the top and bottom of the reduction zone. By using the disclosed split-flow systems, the residence time of the metal-bearing material within the reactor can be reduced and the productivity of the reactor thereby increased.
摘要翻译：公开了一种方法和装置，用于在垂直轴中减少微粒金属矿石（例如铁矿石）的降低效率，具有减少区域的移动床反应器，其中使热还原气体流过一部分矿床将其金属矿石还原成金属，例如海绵铁。通过使用还原气体分流到反应器的还原区域来实现提高的效率。在本发明的一个实施方案中，将分离的还原气流供应到还原区的顶部和底部并在还原区的中心附近组合并从反应器中除去。在本发明的另一个实施方案中，还原气体被供给到还原区中心附近的点，使得还原区中的矿石向上和向下流动，并且在还原区的顶部和底部附近的点被去除。通过使用公开的分流系统，可以减少含金属材料在反应器内的停留时间，从而提高反应器的生产率。

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