专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06273932B1 Continuous metal melting process 失效
标题翻译：连续金属熔化工艺
公开(公告)号：US06273932B1
公开(公告)日：2001-08-14
申请号：US09313789
申请日：1999-05-18
申请人： William Lyon Sherwood
发明人： William Lyon Sherwood
IPC分类号： C22B704
CPC分类号： C22B9/00 , C21B13/085 , C21C5/562 , C22B7/003 , C22B9/16 , F27B7/2083 , F27B7/32 , F27B19/04 , F27B2007/3217 , F27B2007/3276 , F27D3/0033 , F27D3/18 , F27D2003/0056 , Y02P10/136 , Y02P10/216
摘要： A continuous process is provided for rapid melting of a variety of virgin and recycled ferrous and non-ferrous metals. This is accomplished by distributing the introduction of the unmelted charge materials and hence the melting heat requirements along an elongate gas-solid-liquid reaction zone within a rotary furnace, according to the distribution of heat available to effect melting. In the case of fine-sized metal charge materials, fluxes and additive reagents, this charge distribution is implemented by traversing of the nozzle jet, as directed to penetrate into the metal and slag bath from a solids injection lance, successively backwards and forwards and, in the case of coarse-sized materials, by traversing of the discharge from an oscillating conveyor. A preferred embodiment includes longitudinal extension of the furnace to include a gas-liquid reaction zone adapted for conducting refining reactions and adjusting metal temperature prior to discharging, as heated by a burner generating hot furnace gases which flow countercurrent to the general metal movement. The discharge of liquid metal and slag can be via tap hole, vacuum siphon or overflowing the annular lip of the discharge opening. The direct introduction of heat and selective introduction of oxygen along the gas-solid-liquid reaction zone is also preferred for effecting substantially complete combustion of furnace gases to CO2 and H2O before exhausting from the furnace. Recirculation of a major portion of the exhaust gases into the gas-liquid reaction zone is an optional feature.
摘要翻译：提供了连续的方法来快速熔化各种原始和回收的黑色金属和有色金属。这是通过根据可用于实现熔化的热分布来分配未熔化的电荷材料的引入，并因此分布在旋转炉内的细长的气 - 固 - 液反应区的熔化热需求。在精细尺寸的金属充电材料，助熔剂和添加剂试剂的情况下，这种电荷分布通过横穿喷嘴射流来实现，其方向是从固体喷射枪连续地向前和向后渗入金属和渣槽，在粗大尺寸的材料的情况下，通过摆动输送机的排放。优选的实施例包括炉的纵向延伸，以包括适于进行精炼反应并在排放之前调节金属温度的气液反应区，该气液反应区由燃烧器加热，产生与一般金属运动逆流流动的热炉气体。液体金属和炉渣的排放可以通过抽气孔，真空虹吸管或溢出排出口的环形唇缘。在气 - 固反应区内直接引入热和选择性引入氧气也是优选的，以在从炉中排出之前实现炉气体基本上完全燃烧到CO 2和H 2 O. 将废气的主要部分再循环到气液反应区中是可选的特征。

2. 发明授权

US06630099B2 Continuous metal melting apparatus 失效
标题翻译：连续金属熔化装置
公开(公告)号：US06630099B2
公开(公告)日：2003-10-07
申请号：US09796408
申请日：2001-03-02
申请人： William Lyon Sherwood
发明人： William Lyon Sherwood
IPC分类号： C21B1308
CPC分类号： C22B9/00 , C21B13/085 , C21C5/562 , C22B7/003 , C22B9/16 , F27B7/2083 , F27B7/32 , F27B19/04 , F27B2007/3217 , F27B2007/3276 , F27D3/0033 , F27D3/18 , F27D2003/0056 , Y02P10/136 , Y02P10/216
摘要： A rotary furnace apparatus is provided for rapid melting of a variety of virgin and recycled ferrous and non-ferrous metals, which distributes the introduction of the unmelted charge materials and hence the melting heat requirements along an elongate gas-solid-liquid reaction zone within the furnace, according to the distribution of heat available to effect melting. In the case of fine-sized metal charge materials, fluxes and additive reagents, a longitudinally traversing solids injection lance projecting into the furnace is provided with nozzle directed to project a jet of charge down into the bath as it traverses successively backwards and forwards. A traversing oscillating conveyor is provided for coarse-sized scrap metals and the like. A preferred embodiment includes longitudinal extension of the furnace to include a gas-liquid reaction zone adapted for conducting refining reactions and adjusting metal temperature prior to discharging, as heated by a burner generating hot furnace gases which flow countercurrent to the general metal movement. The discharge of liquid metal and slag can be via tap hole, vacuum siphon or overflowing the annular lip of the discharge opening. Burner and lance apparatus adapted for direct introduction of heat along the gas-solid-liquid reaction zone and also oxygen for effecting combustion of furnace gases to CO2 and H2O before exhausting from the furnace are preferred features. A duct system adapted for recirculating a major portion of the exhaust gases into the furnace is optionally included.
摘要翻译：提供了一种用于快速熔化各种原始和回收的黑色金属和有色金属的旋转炉装置，其分配未熔化的电荷材料的引入，因此分布在内部的细长气固 - 液体反应区内的熔化热需求炉，根据可用热量分布进行熔化。在精细尺寸的金属充电材料，助熔剂和添加剂试剂的情况下，向炉中突出的纵向穿透固体注入喷枪设置有喷嘴，当喷射器连续地向前和向后穿过时将喷射射流投射到浴中。为粗大的废金属等提供横动摆动输送机。优选的实施例包括炉的纵向延伸，以包括适于进行精炼反应并在排放之前调节金属温度的气液反应区，该气液反应区由燃烧器加热，产生与一般金属运动逆流流动的热炉气体。液体金属和炉渣的排放可以通过抽气孔，真空虹吸管或溢出排出口的环形唇缘。优选的特征是适用于沿气固液反应区直接导入热量的燃烧器和喷枪装置以及在从炉排出之前将炉气体燃烧至CO 2和H 2 O的氧气。可选地包括适于将废气的主要部分再循环到炉中的管道系统。

3. 发明授权

US06652802B2 Direct iron and steelmaking 失效
公开(公告)号：US06652802B2
公开(公告)日：2003-11-25
申请号：US10102055
申请日：2002-03-21
申请人： William Lyon Sherwood
发明人： William Lyon Sherwood
IPC分类号： C21B1106
CPC分类号： C21B13/085 , C21B13/14 , Y02P10/136 , Y02P10/216
摘要： Solid state iron oxide reduction in a gas-solid reduction zone is combined with continuous melting of the hot solid reduced iron in a fuel-fired gas-solid-liquid melting zone within a rotary furnace. The process includes direct pneumatic transfer of the hot reduced iron by carrier gases through a transfer duct incorporating an injection lance nozzle projecting a jet of hot reduced iron downwards into the metal bath within the melting zone. Oxygen is also introduced into the hot gas stream at selected locations in the melting zone for post-combustion with carbon monoxide generated by a carbon boil and combustion with other combustible gases prior to exit from the rotary furnace, thereby furnishing heat for melting. The hot gas stream is then utilized to provide a significant part of the heat requirement for reduction, prior to exhausting into the atmosphere. A feature is distributing the hot solid reduced iron laterally and longitudinally within the melting zone to enhance heat transfer for melting, including a preferred embodiment comprising continually traversing the jet of carrier gases and hot reduced iron longitudinally forwards and backwards. The invention embraces a broad range of known solid-state reduction processes, classified either as: Group A. those employing gases within a gravity contact-supported or fluidized moving bed at substantial pressures of 1-5 atmospheres; or Group B. solid carbonaceous reductants in a rotary kiln or rotary hearth conducted at near ambient atmospheric pressure. Combustibles in the exhaust gases and unnecessary fume generation caused by direct injection of oxygen into the bath are avoided, as problems endemic to known electric-arc and converter steelmaking technologies. A preferred embodiment applied to Group A reduction includes in situ reforming of a major portion of the hydrocarbons applied as reducing gases in the reduction zone, in combination with reforming a minor portion by partial oxidation with oxygen. The process includes various other preferred features which significantly improve energy requirements, production rates, yields, costs and control of the liquid iron and steel product composition and quality in relation to the prior art.

4. 发明授权

US06383251B1 Direct iron and steelmaking 失效
标题翻译：直接炼钢和炼铁
公开(公告)号：US06383251B1
公开(公告)日：2002-05-07
申请号：US09677404
申请日：2000-09-30
申请人： William Lyon Sherwood
发明人： William Lyon Sherwood
IPC分类号： C21B1308
CPC分类号： C21B13/085 , C21B13/14 , Y02P10/136 , Y02P10/216
摘要： Solid state iron oxide reduction in a gas-solid reduction zone is combined with continuous melting of the hot solid reduced iron in a fuel-fired gas-solid-liquid melting zone within a rotary furnace by pneumatic transfer of the hot reduced iron by carrier gases through a transfer duct connected into an injection lance projecting into the melting zone and carrying a nozzle which directs a jet of hot reduced iron downwards into the metal bath, with a preferred embodiment of continually traversing the lance and thereby the jet of carrier gases and hot reduced iron longitudinally forwards and backwards enhancing heat transfer. The invention embraces a broad range of known solid-state reduction processes, classified either as: Group A. those employing gases within a gravity contact-supported or fluidized moving bed at substantial pressures of 1-5 atmospheres; or Group B. solid carbonaceous reductants in a rotary kiln or rotary hearth conducted at near ambient atmospheric pressure. A preferred embodiment applied to Group A reduction includes in situ reforming of a major portion of the hydrocarbons applied as reducing gases in the reduction zone, in combination with reforming a minor portion by partial oxidation with oxygen. The process provides for a high degree of in-process post-combustion with oxygen in the melting zone and various other preferred features to improve energy requirements, production rates, yields, costs and control of the liquid iron and steel product composition and quality in relation to the prior art.
摘要翻译：在气 - 固还原区中的固态氧化铁还原与旋转炉内的燃料燃烧气 - 固 - 液熔融区中的热固体还原铁的连续熔融相结合，通过气体传递热还原铁通过连接到投射到熔化区域中的喷射枪中的传送管道并且携带将热还原铁射流向下引导到金属槽中的喷嘴，优选的实施例是连续地穿过喷枪，从而喷射载气和热纵向向前和向后减少铁强化热传递。本发明包括广泛的已知的固态还原方法，分类为：组A.在重力接触负载或流化床中在1-5个大气压的实际压力下使用气体的那些; 或B组固体碳质还原剂在旋转窑或在接近环境大气压下进行的旋转炉床。应用于A组还原的优选实施方案包括在还原区中作为还原气体施用的烃的主要部分的原位重整，以及通过用氧部分氧化重整少量部分。该方法提供熔融区中氧气的高程度后处理后燃烧和各种其他优选特征，以改善能量需求，生产速率，产率，成本和控制液体钢铁产品组成和质量关系涉及现有技术。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式