公开(公告)号：US4321085A

公开(公告)日：1982-03-23

申请号：US114693

申请日：1980-01-23

申请人： Roland Drugge

发明人： Roland Drugge

IPC分类号： C22B1/20 ,  C22B1/14 ,  C22B1/24 ,  F27B21/06

CPC分类号： F27B21/06 ,  C22B1/2406

摘要： Green pellets are sintered by drying, pre-heating, firing and cooling steps, at least the drying and pre-heating steps being carried out with said pellets resting, in the form of a bed, on an endless gas-permeable conveyor and at least the first part of the drying operation being carried out with a gas which passes upwardly through said conveyor and the pellet bed, while subsequent temperature-increasing treatment steps carried out on the conveyor are effected with a hot gas flowing downwardly through the pellet bed and the conveyor. At least the first part of the drying operation is effected with heat stored in the conveyor and/or in a hearth layer for the pellet bed arranged on said conveyor by using a drying gas which comprises substantially cool air and which is heated during its passage through the conveyor and/or the hearth layer by the heat stored therein.

摘要翻译： 通过干燥，预热，烧制和冷却步骤烧结绿色颗粒，至少干燥和预加热步骤是用所述沉淀物以床形状沉积在环形透气输送机上进行的，至少 干燥操作的第一部分通过向上通过所述传送器和颗粒床的气体进行，而在输送机上执行的随后的升温处理步骤是通过向下流过颗粒床的热气体进行的，并且 输送带。 干燥操作的至少第一部分通过使用包含基本上冷的空气并且在其通过期间被加热的干燥气体在储存在输送机中的热​​量和/或布置在所述输送机上的颗粒床的炉底层中进行 输送机和/或炉床层通过储存在其中的热量。

公开(公告)号：US4316718A

公开(公告)日：1982-02-23

申请号：US184158

申请日：1980-06-04

申请人： Roland Drugge

发明人： Roland Drugge

IPC分类号： F27B21/06 ,  F26B17/04 ,  F27B21/08 ,  F27B15/00

CPC分类号： F26B17/04

摘要： In a plant for heating or heat-treating a bed of material carried by an upper part of an endless, perforated belt-type conveyor, said upper part extending through at least one heating or heat-treatment zone in which heating or heat-treatment gas passes through said upper part and the bed being conveyed thereon, the conveyor includes a plurality of mutually adjacent endless, imperforate belt parts. These belt parts are separated by perforated regions. The upper conveyor part is slidably supported, preferably by means of gas-cushion bearings, along at least substantially the whole of its material-carrying length in the region of said belt parts.

摘要翻译： 在用于加热或热处理由无端多孔带式输送机的上部部分承载的材料床的设备中，所述上部部分延伸穿过至少一个加热或热处理区域，其中加热或热处理气体 通过所述上部和床被传送到其上，所述输送机包括多个彼此相邻的环形无孔皮带部分。 这些带部分由穿孔区域分开。 上部输送部分优选地通过气垫轴承可滑动地支撑在所述带部分区域中至少基本上整个其承载材料的长度。

公开(公告)号：US4168951A

公开(公告)日：1979-09-25

申请号：US841385

申请日：1977-10-12

申请人： Roland Drugge

发明人： Roland Drugge

IPC分类号： B01J6/00 ,  C22B1/20 ,  C22B1/216 ,  F23G5/05 ,  F27B9/20 ,  F27B19/04 ,  F27B21/06 ,  F27B15/00 ,  F27B7/02

CPC分类号： C22B1/20 ,  C22B1/216 ,  F27B21/06

摘要： Agglomerates are fired in a sintering apparatus of the type, in which the agglomerates during transport on a travelling grate in zones along said grate are pre-dried with substantially pure warm air passing upwardly through the grate and finally dried and heated with hot process gas passing downwardly through the grate, and in which the hot process gas is generated by combusting fuel while using, as secondary air of combustion, air previously used to cool fired agglomerates. In order to reduce the quantity of gas contaminated during the firing process there is maintained in a sealing zone located between the pre-drying and final-drying zones and mechanically shielded thereagainst, by supplying air above the grate and removing air by suction from beneath the grate, pressures which are substantially equal to the pressure above the grate and the pressure beneath the grate respectively in the adjacent final-drying zone.

摘要翻译： 聚集体在这种类型的烧结装置中被烧制，其中在沿着所述格栅的区域中的运送格栅中输送期间的附聚物被预干燥，基本上纯净的暖空气向上通过格栅，最后干燥并用热过程气体通过加热 向下通过炉排，并且其中通过燃烧燃料而产生热过程气体，其中使用先前用于冷却烧结的团块的空气作为燃烧的二次空气。 为了减少在焙烧过程中被污染的气体的量，保持在位于预干燥区域和最后干燥区域之间的密封区域中，并通过在炉排上方供应空气并通过抽吸从空气下方排出空气而机械地屏蔽 炉篦，压力基本上等于炉排上方的压力和相邻最终干燥区域内炉篦下方的压力。

公开(公告)号：US3980466A

公开(公告)日：1976-09-14

申请号：US536306

申请日：1974-12-24

申请人： Bengt Roland Drugge

发明人： Bengt Roland Drugge

IPC分类号： C22B1/24 ,  C21B1/10

CPC分类号： C22B1/2413

摘要： In a method of operating a shaft furnace for the production of sintered iron ore pellets, in which the pellets are fired by introducing hot gas at the level of the furnace adjacent the opening for introducing the pellets to be fired and located at the top of the furnace and cooling air for cooling the pellets after having been heated by the hot gas is introduced into the shaft at the bottom thereof to pass upwardly through the shaft while cooling the pellets, the improvement of applying a substantial portion of the coolant air through air inlet channels distributed around the circumference of the shaft at a level of the shaft located between the bottom opening of the shaft and the burner openings at a substantial distance from both said openings as compared with the distance between the openings, to provide a temperature distribution of the coolant air flowing through the shaft such that the temperature of the coolant air flowing along and in the vicinity of the shaft adopts a value which is substantially lower around the circumference of the shaft than at the central parts of the shaft. A shaft furnace having a port for introducing iron ore pellets to be sintered in the furnace at the top of the furnace shaft, ports distributed around the circumference of the shaft adjacent the top port thereof for introducing hot gas for heating the pellets to be sintered, a port located at the bottom of the shaft for discharging sintered pellets and introducing coolant air to cool the pellets after sintering during descent thereof throught the shaft, and means for introducing coolant air throught ports distributed around the circumference of the shaft and located between the burner ports and the bottom port of the furnace at a distance from both.

摘要翻译： 在用于生产烧结铁矿粒料的竖炉的方法中，其中通过在靠近开口处的炉子的高度引入热气体来引燃颗粒，以引入待烧制的颗粒并位于炉的顶部 用于在被热气体加热之后冷却颗粒的炉和冷却空气在其底部被引入到轴中，以在冷却颗粒的同时向上穿过轴，从而改善将大部分冷却剂空气通过空气入口 与位于轴的底部开口和燃烧器开口之间的轴的水平面上分布在轴的圆周上的通道相比于两个开口之间的距离远离两个开口，以提供温度分布 流过轴的冷却剂空气使得沿着轴和其附近流动的冷却剂空气的温度采用值wh 在轴的圆周周围基本上比在轴的中心部分低。 一种竖炉，其具有用于引入在炉轴顶部的炉中烧结的铁矿石颗粒的端口，邻近轴的顶端分布在轴周围的端口，用于引入用于加热要烧结的颗粒的热气体， 位于所述轴底部的用于排出烧结颗粒的端口并且引入冷却剂空气以在其通过所述轴的下降期间在烧结之后冷却所述颗粒;以及用于引入分布在所述轴的圆周周围并位于所述燃烧器之间的冷却剂空气通过口的装置 端口和炉子的底部端口距离两端。

公开(公告)号：US4134944A

公开(公告)日：1979-01-16

申请号：US800278

申请日：1977-05-25

申请人： Pehr-Adrian Ilmoni ,  Roland Drugge

发明人： Pehr-Adrian Ilmoni ,  Roland Drugge

IPC分类号： C22B1/14 ,  B01J2/12 ,  C22B1/24

CPC分类号： C22B1/2406

摘要： Pellets having uniform size and excellent strength properties are manufactured without fluctuations in production from finely-divided moist material by rolling nuclei of substantially mutually identical size in at least one pellet-rolling circuit in the presence of the finely-divided moist material, to form pellets having at least one layer of said material surrounding respective nuclei. A pre-determined quantity of the pellets formed during a rolling operation and comprising pellets which, during said rolling operation have obtained the largest diameter, is continuously removed as product pellets from said pellet-rolling circuit, while the remaining pellets formed during the rolling operation are returned to the rolling portion of the circuit for renewed rolling therein, the supply of finely divided moist material and of the nuclei to the pellet-rolling circuit being adjusted so that the diameter of the product pellets and the amount of material in the pellet-rolling circuit are maintained substantially constant.

摘要翻译： 通过在细碎的潮湿材料的存在下，在至少一个颗粒滚动回路中滚动具有基本上相同尺寸的细胞核的细碎湿润材料，制造具有均匀尺寸和优异强度特性的颗粒，从而形成颗粒 具有围绕相应核的至少一层所述材料。 在轧制操作期间形成的预定量的颗粒，并且包括在所述轧制操作期间获得最大直径的颗粒作为产品颗粒从所述颗粒滚动回路连续地除去，而在轧制操作期间形成的剩余颗粒 返回到电路的滚动部分以便再次在其中滚动，调节细粒湿润材料和细粒核的供应，使得产品颗粒的直径和颗粒状颗粒中的材料的量， 滚动电路保持基本恒定。