-
公开(公告)号：US5622218A
公开(公告)日：1997-04-22
申请号：US441684
申请日：1995-05-15
IPC分类号： B22D11/111 , B22D11/07
CPC分类号： B22D11/111
摘要： Method of continuously casting steel slabs and the like wherein a layer of melting powder is maintained at the top portion of the casting mold with sufficient thickness so as to provide an increased thermal insulation to the liquid layers of steel and slag, whereby the formation of a solidified slag rim in the mold is eliminated and the surface quality of the steel products is considerably improved. The melting powder addition according to the invention also reduces the number of break-outs and consequently considerably increases the availability and productivity of the caster.
摘要翻译： 连续铸造钢板等的方法，其中熔融粉末层保持在铸模的顶部具有足够的厚度，以便为钢和炉渣的液体层提供增加的隔热性，从而形成 消除了模具中的固化炉渣边缘，大大提高了钢制品的表面质量。 根据本发明的熔融粉末添加物还减少了断裂的数量，并因此显着提高了施法者的可用性和生产率。
-
公开(公告)号：US4793856A
公开(公告)日：1988-12-27
申请号：US94335
申请日：1987-09-08
IPC分类号： C21B13/02
CPC分类号： C21B13/02 , C21B2100/02 , C21B2100/04 , Y02P10/136
摘要： A method for the gaseous reduction of particulate iron ore to sponge iron product in a vertical shaft reactor having a reduction zone in the upper portion thereof, a cooling zone in the lower portion thereof and an intermediate zone between the reduction and cooling zones. In order to reduce the tendency of the hot sponge iron to sinter and agglomerate, and stick to the walls of the reactor, and to give a more uniform product, a cool gas stream is introduced into the intermediate zone and caused to flow downwardly along the wall of the intermediate zone to cool the peripheral portion of the body of reduced ore flowing from the reduction zone through the intermediate zone.
摘要翻译： 一种用于在垂直轴反应器中将颗粒状铁矿石气态还原成海绵铁产品的方法，该立式反应器在其上部具有还原区，其下部具有冷却区和在还原区与冷却区之间的中间区。 为了减少热海绵铁烧结和附聚的趋势，并粘附到反应器的壁上，并且产生更均匀的产物，将冷气流引入中间区域并使其沿着 中间区域的壁，以冷却从还原区通过中间区流动的还原矿体的周边部分。
-
3.发明申请Method and apparatus for producing clean reducing gases from coke oven gas 审中-公开从焦炉煤气生产清洁还原气体的方法和装置公开(公告)号：US20060027043A1
公开(公告)日：2006-02-09
申请号：US11194578
申请日：2005-08-02
IPC分类号： C21B13/02
CPC分类号： C10J3/66 , B01D53/48 , C01B3/36 , C01B3/50 , C01B13/0248 , C01B2203/0255 , C01B2203/04 , C01B2203/0485 , C01B2203/06 , C01B2203/0894 , C01B2203/84 , C01B2210/0046 , C10J2300/1671 , C10K1/00 , C21B13/0073 , C21B13/02 , C21B2100/282 , C21B2100/42 , C21B2100/60 , C21B2100/62 , C21B2100/66 , Y02P10/122 , Y02P10/126 , Y02P10/136
摘要： A process and system for producing reducing gases are disclosed, wherein volatile components derived from coal are transformed into reducing gases suitable for utilization as synthesis gas, as a reducing agent for the direct reduction of iron ores and/or as a clean fuel.
摘要翻译： 公开了一种用于生产还原气体的方法和系统，其中源自煤的挥发性组分转化为适合作为合成气利用的还原气体，作为直接还原铁矿石和/或作为清洁燃料的还原剂。
-
4.发明申请Method and apparatus for improved use of primary energy sources in integrated steel plants 有权一体化钢铁厂改善一次能源利用的方法和装置公开(公告)号：US20040226406A1
公开(公告)日：2004-11-18
申请号：US10846508
申请日：2004-05-17
申请人： Hylsa, S.A. DE C.V.
IPC分类号： C21B013/14
CPC分类号： C21B5/008 , C21B13/143 , C21B2100/24 , C21B2100/282 , C21B2100/60 , C21B2100/66 , C21C5/285 , Y02P10/122 , Y02P10/136
摘要： A method and an integrated steel plant wherein, instead of using coke oven gases, converter gases and blast furnace top gases available as fuel for power generation or other heating purposes, these gases are more efficiently utilized as chemical agents for direct reduction of iron ores producing DRI. DRI is charged to blast furnaces increasing production of crude steel without increasing the capacities of the coke oven plant and blast furnaces and without changes in the quality of the crude steel, or, if production rate is maintained, the fossil fuels specific consumption is significantly reduced. Utilisation of primary fossil energy according to the invention also reduces the specific CO2 emissions per ton of crude steel. The specific CO2 emission in conventional integrated mills is about 1.6 tons of CO2 per ton of crude steel.
摘要翻译： 一种方法和综合钢铁厂，其中，代替使用焦炉煤气，转炉气体和高炉顶部气体作为用于发电或其他加热目的的燃料，这些气体被更有效地用作直接还原铁矿石生产的化学试剂 DRI。 在不增加焦炉厂和高炉的能力，粗钢质量不变的情况下，DRI将用于提高粗钢产量的高炉，或者如果维持生产率，则化石燃料的特定消耗量显着降低 。 根据本发明的主要化石能源的利用也降低了每吨粗钢的特定二氧化碳排放量。 常规综合磨坊的二氧化碳排放量，每吨粗钢约为1.6吨二氧化碳。
-
5.发明授权Apparatus for producing direct reduced iron utilizing a reducing gas with a high content of carbon monoxide 失效利用具有高含量一氧化碳的还原气体生产直接还原铁的装置
公开(公告)号：US5882579A
公开(公告)日：1999-03-16
申请号：US896231
申请日：1997-07-17
CPC分类号： C21B13/002 , C21B13/14 , Y02P10/122 , Y02P10/136 , Y02P10/265 , Y02P10/283
摘要： A method and apparatus for producing direct reduced iron using a melter-gasifier and two reduction reactors. In the first reduction reactor, iron ore is prereduced using a reducing gas from a melter-gasifier. This prereduced iron ore is fed into the melter-gasifier to produce pig iron. A secondary reducing gas comprising hydrogen and carbon monoxide is withdrawn from the first reduction reactor and is reacted with water to produce carbon dioxide which is subsequently removed to produce a tertiary reducing gas that is used in the second reduction reactor to produce direct reduced iron from iron ore.
摘要翻译： 一种使用熔化器 - 气化器和两个还原反应器生产直接还原铁的方法和装置。 在第一还原反应器中，使用来自熔化器 - 气化器的还原气体还原铁矿石。 将这种预还原的铁矿石送入熔炉 - 气化器生产生铁。 包含氢气和一氧化碳的次级还原气体从第一还原反应器中排出并与水反应以产生二氧化碳，随后除去二氧化碳以产生在第二还原反应器中用于从铁生产直接还原铁的第三还原气体 矿石。
-
公开(公告)号：US5425792A
公开(公告)日：1995-06-20
申请号：US158195
申请日：1993-11-24
CPC分类号： C10J3/002 , C10J3/005 , C10J3/06 , C10J3/14 , C10J3/66 , C10K1/003 , C10K1/02 , C10K1/026 , C10J2200/158 , C10J2300/0946 , C10J2300/1223 , C10J2300/1621 , C10J2300/165 , C10J2300/1687 , C10J2300/1693
摘要： A process and apparatus for gasification of organic materials (typically incorporated in domestic and industrial wastes, including auto shredder residues) to produce useful synthesis gas (primarily CO & H.sub.2) with effectively non-toxic ash residue by means of a preferably stoichiometric burner directed into a single stage reactor containing a tumbling charge thus heated to 650.degree. to 800.degree. C. (below the incipient fusion temperature of the charge) resulting in thermally cracking and gasifying the organic materials in the charge and reacting the complex hydrocarbons and gas evolved with the CO.sub.2 and H.sub.2 O generated by the burner by combustion of a fuel and oxygen-containing gas at a high flame temperature, typically 2500.degree. to 3000.degree. C.
摘要翻译： 一种用于气化有机材料（通常并入家用和工业废物，包括自动粉碎机残渣）的工艺和设备，以通过优选化学计量的燃烧器产生有效的无毒灰渣，从而产生有用的合成气（主要是CO和H 2） 一个单级反应器，其中包含一个转速为650-800℃（低于电荷初始熔化温度）的转鼓，导致电荷中的有机材料发生热裂化和气化，并使复合烃与气体放出的气体反应 通过在高火焰温度（通常在2500℃至3000℃）下燃烧燃料和含氧气体由燃烧器产生的CO 2和H 2 O.
-
公开(公告)号：US5213611A
公开(公告)日：1993-05-25
申请号：US573351
申请日：1990-08-27
IPC分类号： C21B13/02
CPC分类号： C21B13/02 , Y02P10/122 , Y02P10/136
摘要： Process control method for regulating the percentage reduction of sponge metal produced in a moving bed vertical reduction reactor by means of sampling at a single level in the reactor (preferably centrally located) for determining the concentration ratio of a reducing gas species and its oxidized product (such as the CO/CO.sub.2 ratio in a sponge iron reactor) and comparing such ratio with an established discovered interrelationship between such concentration ratios and the final degree of metallization, and regulating the process control parameters so as to shift the concentration ratio at the sampling point towards a ratio previously established to yield the desired final degree of metallization for the sponge metal (thus permitting reliable compensating adjustment of the reduction process relative to the sampled ore prior to completing its reduction so that the final metallization achieved for the ore adjacent such sample will have the degree of metallization desired, thus avoiding the serious lag time and imprecision in adjustments of the metalization typical of prior art practices).
摘要翻译： 用于调节在移动床垂直还原反应器中产生的海绵金属的百分比减少的方法，其通过在反应器中的单个级别（优选居中定位）进行取样以确定还原气体物质及其氧化产物的浓度比（ 例如海绵铁反应器中的CO / CO 2比），并将这种比率与这种浓度比和最终的金属化程度之间确定的发现的相互关系进行比较，并调节过程控制参数以便使采样点的浓度比 朝向先前确定的比例，以产生海绵金属的期望的最终金属化度（因此允许在完成其还原之前相对于采样的矿石进行还原过程的可靠的补偿调整，使得对于邻近该样品的矿石实现的最终金属化将 具有期望的金属化程度，从而避免了金属化的程度 严重的滞后时间和调整现有技术典型典型金属化的不精确性）。
-
公开(公告)号：US5078787A
公开(公告)日：1992-01-07
申请号：US531930
申请日：1990-06-01
CPC分类号： C21B13/02 , C21B2100/02 , C21B2100/04 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136 , Y02P10/265 , Y02P10/283
摘要： A method and apparatus for the gaseous reduction of particulate iron ores, wherein the ore or is fed to a vertical moving bed direct reduction reactor, reduced therein, and discharged as hot sponge iron. The ore is charged to the top portion of the reduction zone of the furnace wherein the bed of particles which descend by gravity is reduced by a hot reducing gas largely composed by carbon monoxide and hydrogen. The hot reducing gas is divided in two portions, a first portion which flows upwardly through the reduction zone to reduce the ores therein, and a second portion which flows downwardly through a lower discharge zone to maintain the bed at a suitable temperature level. Finally, the product sponge iron is discharged from the bottom portion of the discharge zone of the furnace and conveyed, for example, to be melted in an electric arc furnace or to be briquetted in a briquetting machine coupled to the reduction reactor.
-
9.发明授权Method and apparatus for improved use of primary energy sources in integrated steel plants 有权一体化钢铁厂改善一次能源利用的方法和装置公开(公告)号：US06986800B2
公开(公告)日：2006-01-17
申请号：US10846508
申请日：2004-05-17
IPC分类号： C21B5/06
CPC分类号： C21B5/008 , C21B13/143 , C21B2100/24 , C21B2100/282 , C21B2100/60 , C21B2100/66 , C21C5/285 , Y02P10/122 , Y02P10/136
摘要： A method and an integrated steel plant wherein, instead of using coke oven gases, converter gases and blast furnace top gases available as fuel for power generation or other heating purposes, these gases are more efficiently utilized as chemical agents for direct reduction of iron ores producing DRI.DRI is charged to blast furnaces increasing production of crude steel without increasing the capacities of the coke oven plant and blast furnaces and without changes in the quality of the crude steel, or, if production rate is maintained, the fossil fuels specific consumption is significantly reduced.Utilisation of primary fossil energy according to the invention also reduces the specific CO2 emissions per ton of crude steel. The specific CO2 emission in conventional integrated mills is about 1.6 tons of CO2 per ton of crude steel.
摘要翻译： 一种方法和综合钢铁厂，其中，代替使用焦炉煤气，转炉气体和高炉顶部气体作为用于发电或其他加热目的的燃料，这些气体被更有效地用作直接还原铁矿石生产的化学试剂 DRI。 在不增加焦炉厂和高炉的能力，粗钢质量不变的情况下，DRI将用于提高粗钢产量的高炉，或者如果维持生产率，则化石燃料的特定消耗量显着降低 。 根据本发明的初级化石能源的利用也降低了每吨粗钢的特定CO 2排放量。 在常规的综合磨机中，特定CO 2排放量为每吨粗钢约1.6吨CO 2。
-
10.发明授权Method and apparatus for reducing iron-oxides-particles having a broad range of sizes 有权用于还原具有宽范围尺寸的铁氧化物颗粒的方法和装置
公开(公告)号：US6132489A
公开(公告)日：2000-10-17
申请号：US165985
申请日：1998-10-02
CPC分类号： C21B13/002 , C21B13/0033 , C22B5/14 , Y02P10/136
摘要： The present invention describes a method and apparatus for the reduction into metallic iron of iron-oxides-containing particles having a broad range of sizes. Particles, preferably within a broad range of sizes smaller than about 3.2 mm, are reduced by contact with a hot reducing gas, preferably mainly composed of hydrogen and within a temperature range of 700 to 750.degree. C. The reducing gas flows through a descending moving bed of coarser particles and forms an ascending fluidized bed of fines, all in a single reduction reactor, where the particles charged to the reactor are fed into the lower portion of the fluidized bed and the reduced fines are withdrawn from the reactor from the upper portion of the fluidized bed.
摘要翻译： 本发明描述了一种用于还原具有宽范围尺寸的含铁氧化物颗粒的金属铁的方法和装置。 优选在小于约3.2mm的宽范围内的颗粒通过与优选主要由氢组成的热还原气体在700-750℃的温度范围内接触而减少。还原气体流过下降的运动 床较粗的颗粒并形成细粒的上升流化床，全部在单个还原反应器中，其中装入反应器的颗粒进料到流化床的下部，并且还原的细粒从上部排出反应器 的流化床。
-
-
-
-
-
-
-
-
-
搜索结果
32 条记录 (耗时 0.016 秒)
