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公开(公告)号：US20160273062A1
公开(公告)日：2016-09-22
申请号：US15033532
申请日：2014-10-23
CPC分类号： C21C5/5217 , C21C7/072 , F27B14/06 , F27D11/10 , F27D19/00 , F27D2019/0068 , H05B7/06 , H05B7/185 , Y02P10/216
摘要： A method for operating an electric arc furnace (10) which has at least one electrode (18) having a through-opening (32). An electric arc (20) is generated between the at least one electrode (18) and a material to be melted (16). A first additive is introduced into the through-opening (32) of the electrode (18) for causing an endothermic chemical reaction which is controlled such that the chemical reaction is caused in a predetermined region (34) of the at least one electrode (18), wherein the region faces the material to be melted (16).
摘要翻译： 一种用于操作具有至少一个具有通孔（32）的电极（18）的电弧炉（10）的方法。 在至少一个电极（18）和待熔化的材料（16）之间产生电弧（20）。 将第一添加剂引入到电极（18）的通孔（32）中，以引起吸热化学反应，所述吸热化学反应被控制使得在至少一个电极（18）的预定区域（34）中引起化学反应 ），其中该区域面向要熔化的材料（16）。
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公开(公告)号：US20120312124A1
公开(公告)日：2012-12-13
申请号：US13580712
申请日：2010-02-26
申请人： Frank L. Kemeny , David I. Walker
发明人： Frank L. Kemeny , David I. Walker
IPC分类号： C21C5/30
CPC分类号： B22D2/00 , C21C5/462 , C21C5/4673 , F27D19/00 , F27D21/0028 , F27D2019/0068 , F27D2021/0085
摘要： A method of making steel in a vessel comprising providing a lance for blowing oxygen on the surface of the steel in the vessel, the lance joined to a lance carriage and in communication with an accelerometer, the accelerometer in signal communication with a data acquisition module and a computer; charging the vessel with materials for steel making; lowering the lance into the vessel and injecting oxygen into the materials; acquiring a signal from the accelerometer indicative of lance vibration; processing the vibration signal to determine component frequencies of lance vibration; comparing the levels of the component frequencies to desired operating values; and adjusting at least one steel making process parameter based on the level of at least one of the component frequencies. The steel making process parameter to be adjusted may be oxygen flow rate through the lance.
摘要翻译： 一种在容器中制造钢的方法，包括在容器中的钢表面上提供用于吹氧的喷枪，所述喷枪连接到喷枪托架并与加速度计通信，加速度计与数据采集模块进行信号通信， 一台电脑; 用造钢材料给船舶充电; 将喷枪降低到容器中并将氧气注入材料中; 从加速度计获取指示喷枪振动的信号; 处理振动信号以确定喷枪振动的分量频率; 将组件频率的水平与期望的操作值进行比较; 以及基于所述分量频率中的至少一个的水平来调整至少一个炼钢工艺参数。 要调整的炼钢工艺参数可以是穿过喷枪的氧气流量。
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公开(公告)号：US6038245A
公开(公告)日：2000-03-14
申请号：US68450
申请日：1998-05-08
CPC分类号： F27B3/225 , C21C5/5217 , F27B3/28 , F27D3/1509 , F27D2019/0012 , F27D2019/0015 , F27D2019/0068 , Y02P10/216
摘要： Provided is a process for melting a charge in a furnace. Energy of fusion is supplied to the charge, and gases including at least one combustible gas are generated during the the melting. A post-combustion of the combustible gas is performed by injecting an oxidant gas containing more than 25% by volume of oxygen during at least some periods of the process. The oxidant gas is injected above the charge, in the form of at least one oxidant gas jet. Each jet has a flow rate of between approximately 50 and 1200 Sm.sup.3 /h and a speed of injection into the furnace of between approximately 5 m/s and 150 m/s. The process has particular applicability to an electrical furnace for melting scrap for the production of steel.
摘要翻译： PCT No.PCT / FR96 / 00940 Sec。 371日期1998年5月8日 102（e）日期1998年5月8日PCT提交1996年6月18日PCT公布。 公开号WO97 / 00413 日期1997年1月3日提供熔化炉中的电荷的方法。 融化能量被提供给电荷，并且在熔化期间产生包括至少一种可燃气体的气体。 可燃气体的后燃烧通过在该方法的至少一段时间内注入含有超过25体积％氧气的氧化剂气体来进行。 氧化剂气体以至少一种氧化剂气体射流的形式注入电荷之上。 每个射流的流速在约50和1200 Sm3 / h之间，并且注入炉中的速度在大约5m / s到150m / s之间。 该方法特别适用于用于生产钢的熔化废料的电炉。
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公开(公告)号：US4989840A
公开(公告)日：1991-02-05
申请号：US433560
申请日：1989-11-08
申请人： Radovan R. Maric
发明人： Radovan R. Maric
CPC分类号： C23C8/26 , C23C8/22 , F27D19/00 , F27D2019/0012 , F27D2019/0068
摘要： The humidity of the atmosphere of a heat-treating furnace is controlled by the use of superheated steam, which is generated by the use of a furnace-heated humidifier to which water is fed through a capillary tube. A secondary gas flow passes through the humidifier and is humidified by the superheated steam. The humidified secondary gas flow then passes to a primary gas flow to be mixed therewith, before the primary gas flow passes to the furnace atmosphere.
摘要翻译： 通过使用过热蒸汽来控制热处理炉的气氛的湿度，过热蒸汽是通过使用通过毛细管供给水的加热加热器产生的。 二次气流通过加湿器，并被过热蒸汽加湿。 然后，加湿的二次气流在主气流通入炉气氛之前传递到与其混合的主气流。
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公开(公告)号：US4878839A
公开(公告)日：1989-11-07
申请号：US234799
申请日：1988-08-22
申请人： Joachim Wunning
发明人： Joachim Wunning
IPC分类号： F23C6/04 , F23C99/00 , F23G7/06 , F23L15/04 , F23N1/02 , F23N5/02 , F26B23/02 , F27B9/10 , F27B9/30 , F27B9/36 , F27B9/40 , F27D19/00
CPC分类号： F23L15/04 , F23G7/065 , F23N1/022 , F26B23/022 , F27B9/3011 , F27B9/36 , F27B9/40 , F23N2025/10 , F23N5/02 , F27B9/10 , F27D2019/0018 , F27D2019/0068 , Y02E20/348
摘要： To provide for energy-efficient non-polluting heat treatment of workpieces (W) which, during heat treatment, emit oxidizable or combustible substances, hot gases are generated in a hot gas generating chamber (2) by a jet burner (5) emitting a flame jet. The hot gas generating chamber (2) is connected through a hot gas outlet (7) with a processing chamber retaining the workpieces, and a recirculating inlet (8) to receive the gases from the processing chamber, after they have been contaminated or received polluting combustible components. The hot gas generating chamber is, additionally, in communication through a duct or gap (4) with an after-burner chamber (3). The process is so controlled that the temperature in the after-burner chamber is maintained sufficiently high to provide for complete combustion of any oxidizable components, and the volume of the after-burner chamber, including the gas passed thereto, is so controlled that a dwell time of the gases therein will obtain which is sufficiently long to provide for said complete combustion. Typical dwell times are 1-2 seconds. A closed gas circulating loop (9) between the hot gas generating chamber (2) and the processing chamber (1) is established, the throughput to which can be controlled, for example by a throttling arrangement (13, 130), based on sensed temperature by temperature sensors (12, 15) which then control the throughput of hot gases in the closed loop and the fuel and air supply to the burner.
摘要翻译： 为了提供在热处理期间发射可氧化或可燃物质的工件（W）的高能无污染热处理，在热气体发生室（2）中，通过喷射燃烧器（5）产生热气体 火焰喷射 热气体发生室（2）通过热气体出口（7）与保持工件的处理室连接，以及再循环入口（8），在其被污染或接收污染物之后接收来自处理室的气体 可燃组分。 此外，热气体发生室通过具有后燃烧室（3）的管道或间隙（4）连通。 该过程受到如此控制，使得后燃烧器室中的温度保持足够高以提供任何可氧化组分的完全燃烧，并且后燃烧室（包括通过其的气体）的体积受到如此控制，使得停留 其中气体的时间将获得足够长以提供所述完全燃烧。 典型的停留时间为1-2秒。 建立在热气体发生室（2）和处理室（1）之间的封闭气体循环回路（9），其可以例如通过节流装置（13,130）基于感测 温度传感器（12,15），其然后控制闭环中的热气体的通过量以及向燃烧器供应的燃料和空气。
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公开(公告)号：US4767320A
公开(公告)日：1988-08-30
申请号：US114070
申请日：1987-10-29
申请人： Hirofumi Sasaki , Yoshinaga Miyabe
发明人： Hirofumi Sasaki , Yoshinaga Miyabe
CPC分类号： F27B9/40 , F27B9/3005 , F27D2019/005 , F27D2019/0068
摘要： A continuous heat treating furnace is equipped with an automatic flow control system and contains a high-temperture treating zone internally provided with a plurality of burners, a pre-heating zone connectively disposed at one end of the high-temperature treating zone and a cooling zone connectively disposed at its other end, the pre-heating and cooling zones being partitioned into a plurality of compartments each provided on its ceiling portion with a convection fan. The automatic flow control system includes a first duct for communicating a terminal compartment of the pre-heating zone and a first compartment of the cooling zone, a second duct for communicating a terminal compartment of the cooling zone and a first compartment of the pre-heating zone, a first flow regulating damper disposed in the course of the first duct to regulate a flow rate of atmosphere gas flowing in the first duct, and a second flow regulating damper disposed in the course of the second duct to regulate the flow rate of the atmosphere gas flowing in the second duct. By such an arrangement, the flow rate of the atmosphere gas introduced into the pre-heating zone and that introduced into the cooling zone are automatically regulated to coincide with each other.
摘要翻译： 连续热处理炉配备有自动流量控制系统，并且包含内部设置有多个燃烧器的高温处理区，连接设置在高温处理区的一端的预热区和冷却区 连接地设置在其另一端，预热和冷却区被分隔成多个隔室，每个隔间在其顶部具有对流风扇。 自动流量控制系统包括用于连通预热区域的终端隔室和冷却区域的第一隔室的第一管道，用于连通冷却区域的终端隔室的第二管道和预热区域的第一隔室 第一流量调节阻尼器，设置在第一管道的过程中，以调节在第一管道中流动的气氛气体的流量;以及第二流量调节阻尼器，其设置在第二管道的过程中，以调节 气体气体在第二管道中流动。 通过这样的布置，引入预热区域和引入冷却区域的气氛气体的流量被自动调节为彼此一致。
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公开(公告)号：US3595543A
公开(公告)日：1971-07-27
申请号：US3595543D
申请日：1970-01-08
CPC分类号： F27D19/00 , F27B7/42 , F27D15/0213 , F27D2015/0233 , F27D2019/0018 , F27D2019/0068 , F27D2021/0007
摘要： This invention relates to an apparatus for and method of cooling and treating cement clinker discharged from a discharge end of a cement kiln, which kiln has a burner disposed adjacent the discharge end. The apparatus has a grate-type cooling means adapted to receive a bed of the cement clinker from the discharge end at a temperature of about 2,700to 2,800* F. and to discharge the cement clinker at a temperature of about 350* F. The cooling means has a pressure zone for cooling the cement clinker from a temperature of about 2,500* to a temperature of about 1,850*. A first cooling means is disposed adjacent the pressure zone for directing a pressurized cooling fluid through the cooling means and through the bed to cool the cement clinker from a temperature of about 2,500* F. to a temperature of about 1,850* F. and also to heat the cooling fluid to a temperature of about 400* to about 500* F. for use as secondary air for the burner. The cooling means also has a reduction and cooling zone adjacent the pressure zone for cooling and treating the cement clinker from a temperature of about 1,850* F. to a temperature of about 1,100* F. Gas generator means in the reduction and cooling zone direct a pressurized reducing fluid through the cooling means and through the bed to cool the cement clinker from a temperature of about 1,850* F. to a temperature of about 1,100* F. and to exit the reducing fluid from the reduction and cooling zone. Additionally, the cooling means has a cooling zone adjacent the reduction and cooling zone for cooling the cement clinker from a temperature of about 1,100* F. to a temperature of about 350* F. A second cooling means adjacent the cooling zone directs a pressurized cooling fluid through the cooling means and through the bed to cool the cement clinker from about 1,100* F. to about 350* F. and to heat the cooling fluid to a temperature of about 230* to 250* F. for use as primary air for the burner. The method includes the steps of receiving a bed of the cement clinker on a grate-type cooling means from the discharge end at a temperature of about 2,700* to 2,800* F.; cooling the cement clinker in a pressure zone of the cooling means from a temperature of about 2,500* F. to a temperature of about 1,850* F. by directing a pressurized cooling fluid through the cooling means and through the bed to heat the cooling fluid to a temperature of about 400* to about 500* F. for use as secondary air for the burner; cooling the partially cooled cement clinker in a reduction and cooling zone adjacent the pressure zone of the cooling means from a temperature of about 1,850* F. to a temperature of about 1,100* F. by directing a pressurized reducing fluid through the cooling means and through the bed and to exit the reducing fluid from the reduction and cooling zone; and cooling the reduced cement clinker in a cooling zone adjacent the reduction and cooling zone from a temperature of about 1,100* F. to a temperature of about 350* F. by directing a pressurized cooling fluid through the cooling means and through the bed to heat the cooling fluid to a temperature of about 230* to 250* F. for use as primary air for the burner.
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公开(公告)号：US2960744A
公开(公告)日：1960-11-22
申请号：US68895557
申请日：1957-10-08
申请人： GEN ELECTRIC
发明人： BLANK JOHN M
CPC分类号： H01F1/0315 , C04B35/26 , F27B9/047 , F27B9/40 , F27D2019/0068 , F27M2001/1504
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公开(公告)号：US20170248368A1
公开(公告)日：2017-08-31
申请号：US15593593
申请日：2017-05-12
申请人： Outotec (Finland) Oy
CPC分类号： F27D19/00 , F27B1/16 , F27B1/20 , F27B1/26 , F27D3/0033 , F27D3/14 , F27D3/16 , F27D2019/0068 , F27D2019/0075
摘要： The invention relates to a method for controlling suspension in a suspension smelting furnace, to a suspension smelting furnace, and to a concentrate burner. The method comprises feeding additionally to pulverous solid matter and additionally to reaction gas reducing agent into the suspension smelting furnace, wherein reducing agent is fed in the form of a concentrated stream of reducing agent through the suspension in the reaction shaft onto the surface of the melt to form a reducing zone containing reducing agent within the collection zone of the melt.
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公开(公告)号：US5590150A
公开(公告)日：1996-12-31
申请号：US338545
申请日：1994-12-09
申请人： Masaki Ogushi , Osamu Takeuchi , Ikuo Yamamura , Toru Iura , Hironobu Yoshida
发明人： Masaki Ogushi , Osamu Takeuchi , Ikuo Yamamura , Toru Iura , Hironobu Yoshida
IPC分类号： C21B13/12 , C21C5/52 , C21C5/56 , F27B3/08 , F27B3/18 , F27B3/20 , F27B3/22 , F27B3/28 , F27D13/00 , F27D19/00 , F27D17/00
CPC分类号： C21C5/5229 , C21B13/12 , C21C5/5217 , C21C5/527 , C21C5/565 , F27B3/186 , F27B3/20 , F27B3/205 , F27B3/225 , F27B3/28 , F27D13/002 , F27D19/00 , F27D2019/0021 , F27D2019/0068 , Y02P10/216
摘要： An electric arc melting furnace comprises a furnace shell (1) with an electrode (3) for melting scrap by heat of arc, an air blasting port (20) for blasting air, oxygen or oxygen-enriched air into the furnace shell (1) through an air control valve (19), a carbon blasted quantity indicator (CI) for measuring quantity of carbon to be charged into the furnace shell (1), a scrap charged quantity indicator (SI) for measuring quantity of the scrap charged into the furnace shell (1), an oxygen blasted quantity indicator (OI) for measuring quantity of oxygen blasted into the furnace shell (1) and an arithmetic processor (7) for computing quantity of air required for complete combustion of carbon monoxide (23) in the furnace shell (1) in response to measured value from the indicators (CI)(SI)(OI) to control a degree of opening of the air control valve (19). Air with quantity in proportion to the carbon monoxide (23) is blasted through the air blasting port (20), which enables control of combustion temperature in the furnace shell (1) and control of temperature in the scrap preheating device.
摘要翻译： PCT No.PCT / JP94 / 00619 Sec。 371日期1994年12月9日第 102（e）1994年12月9日PCT PCT 1994年4月14日PCT公布。 公开号WO95 / 09336 日期1994年4月6日电弧熔炼炉包括：炉壳（1），具有用于通过电弧加热熔化废料的电极（3），用于将空气，氧气或富氧空气吹入的喷气口（20） 通过空气调节阀（19）的炉壳（1），用于测量装入炉壳（1）中的碳量的喷砂量指示器（CI），用于测量量 装入炉壳（1）中的废料，用于测量吹入炉壳（1）的氧量的氧气喷射量指示器（OI）和用于计算碳完全燃烧所需的空气量的运算处理器（7） 响应于来自指示器（CI）（SI）（OI）的测量值来控制空气调节阀（19）的打开程度，炉壳（1）中的一氧化物（23）。 通过喷气口（20）喷射与一氧化碳（23）成比例的量的空气，其能够控制炉壳（1）中的燃烧温度和废料预热装置中的温度控制。
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