公开(公告)号：US4264060A

公开(公告)日：1981-04-28

申请号：US771846

申请日：1977-02-25

申请人： Noel H. Twyman

发明人： Noel H. Twyman

IPC分类号： C21C5/56 ,  C22B1/00 ,  C22B21/00 ,  F27B7/00 ,  F27B7/02 ,  F27B7/42 ,  F27D13/00 ,  F27D17/00 ,  F27D99/00 ,  F27B7/06

CPC分类号： C22B21/0007 ,  C21C5/565 ,  C22B1/005 ,  F27B7/00 ,  F27B7/42 ,  F27D13/002 ,  F27B2007/025 ,  F27D2017/005 ,  F27D2099/0048 ,  F27M2001/012 ,  F27M2001/10 ,  Y02P10/214 ,  Y02P10/216 ,  Y02P10/218 ,  Y10S266/901

摘要： Metal scrap such as aluminum scrap can be economically processed so as to recover the metal in the scrap by concurrently passing the scrap through a rotary kiln together with a recycled stream of hot gas. The heated scrap is separated from the gas stream at the discharge end of the kiln and is fed to a melter used to recover the metal. The separated gas stream is burned in an appropriate burner or incinerator used to provide the recycled gas stream.

摘要翻译： 可以经济地处理诸如铝废料的金属废料，以便通过将废料与再循环的热气流同时通过回转窑来回收废料中的金属。 将加热的废料与窑的排出端处的气流分离，并送入用于回收金属的熔化器。 分离的气流在用于提供循环气流的合适的燃烧器或焚烧炉中燃烧。

公开(公告)号：US4234283A

公开(公告)日：1980-11-18

申请号：US897381

申请日：1978-04-18

申请人： Noel H. Twyman ,  Robert F. Jenkins

发明人： Noel H. Twyman ,  Robert F. Jenkins

IPC分类号： F27D3/00 ,  F27D3/10 ,  B66C17/08

CPC分类号： F27D3/0025 ,  F27D3/10 ,  F27D2003/0065 ,  F27D2003/105 ,  F27D3/0032 ,  F27M2001/10

摘要： A scrap metal feed system is described employing an endless conveyor having a surface for supporting materials thereon. The conveyor is equipped with lifters extending outwardly from the surface at periodic intervals. A first hopper feeds this conveyor and a second hopper at the inlet end of a rotary kiln receives the scrap from the conveyor. The conveyor extends horizontally beneath the bottom of the first hopper and then upwardly at an angle to the horizon less than eighty degrees and greater than fifty degrees and then terminates over the top of the second hopper. The conveyor is exposed to the interior of the first hopper as it extends upwardly at an angle to the horizontal so that material can move back along the conveyor to the first hopper as the conveyor is operated; as the material moves back to the first hopper a shearing action results which tends to break up large pieces of material and/or separate pieces of material which are adhering to each other. The material that remains on the conveyor is conveyed up the conveyor and is deposited in the second hopper. The second hopper is attached to a chute having two flapper gate valves within the interior of the chute which are coupled together such that when one flapper gate is in an open position the other is not. The coupling is achieved by rotating striker arm which sequentially abuts against a lever attached to the flapper gate valves and causes the valves to open.

摘要翻译： 使用具有用于在其上支撑材料的表面的环形输送机描述废金属进料系统。 输送机配有从表面以周期性间隔向外延伸的升降器。 第一料斗供给该输送机，在回转窑的入口端的第二料斗从输送机接收废料。 输送机在第一料斗的底部水平地延伸，然后以与水平面成小于八十度且大于五十度的角度向上延伸，然后终止于第二料斗的顶部。 当输送机以与水平面成一定角度向上延伸时，输送机暴露于第一料斗的内部，使得当输送机被操作时，材料可以沿输送机向后移动到第一料斗; 当材料移回到第一料斗时，会产生剪切作用，这会导致大块材料和/或分离的彼此粘附的材料碎片。 保持在输送机上的材料被输送到输送机上并沉积在第二料斗中。 第二料斗连接到在滑槽内部具有两个挡板闸阀的滑槽，它们联接在一起，使得当一个挡板门处于打开位置时，另一个不是。 联接通过旋转撞击臂来实现，该撞针臂顺序地抵靠附接到挡板闸阀的杆并使阀打开。

公开(公告)号：US4451352A

公开(公告)日：1984-05-29

申请号：US285038

申请日：1981-07-20

申请人： Noel H. Twyman

发明人： Noel H. Twyman

IPC分类号： C10G1/02 ,  C10G1/00

CPC分类号： C10G1/02

摘要： Oil is preferably recovered from oil shale through the use of a process involving two separate heating steps. During the first of these steps the shale is heated by contact with a hot gas stream while it is agitated for a period and at a temperature which together are such that any significant further heating will cause the vaporization of pyrolysis products of the kerogen within the shale. During the second heating step the shale is further heated by contact with a hot gas stream while being agitated for a period and to a temperature which together are sufficient to produce and volatilize substantially all of the volatiles which can be obtained from or derived from the shale. After the second heating step the vaporized products and the remaining inorganic mineral matrix are separated, and the volatiles are recovered as oil.

摘要翻译： 优选通过使用涉及两个单独的加热步骤的方法从油页岩回收油。 在这些步骤的第一步中，页岩通过与热气流接触而被加热，同时搅拌一段时间并且在一定温度下加热，使得任何显着的进一步加热将导致页岩中热油产物的蒸发 。 在第二加热步骤期间，页岩通过与热气流接触而进一步加热，同时搅拌一段时间，并且达到一起足以产生和挥发基本上可以从页岩获得或源自页岩的所有挥发物的温度 。 在第二次加热步骤之后，汽化产物和剩余的无机矿物基质被分离，挥发物作为油回收。

公开(公告)号：US4411695A

公开(公告)日：1983-10-25

申请号：US30151

申请日：1979-04-16

申请人： Noel H. Twyman

发明人： Noel H. Twyman

IPC分类号： C21C5/56 ,  C22B1/00 ,  C22B21/00 ,  F27B7/00 ,  F27B7/02 ,  F27B7/42 ,  F27D13/00 ,  F27D17/00 ,  F27D99/00 ,  C22B1/02

CPC分类号： C21C5/565 ,  C22B1/005 ,  C22B21/0007 ,  F27B7/00 ,  F27B7/42 ,  F27D13/002 ,  F27B2007/025 ,  F27D2017/005 ,  F27D2099/0048 ,  F27M2001/012 ,  F27M2001/10 ,  Y02P10/216

摘要： In a process for decontaminating contaminated metallic scrap, an oxygen bearing hot gas stream is passed into the inlet end of a container and is discharged from an exit end of the same container. The decontaminated scrap is loaded in the container at the inlet end. Concurrently the scrap is (a) moved from the inlet end to the exit end, (b) mixed and agitated within the interior of the container, and (c) during the mixing and agitation contacted with the hot gas stream moving through the interior of the container. The contact of the scrap with the hot gas stream is under conditions essentially capable of inhibiting flaming. By virtue of the contact with the hot gas stream, heat from the hot gas stream is transferred to the scrap, which lowers the temperature of the hot gas stream while raising the temperature of the scrap. This heat transfer takes the scrap to a first temperature phase wherein contaminants such as organics are volatilized and/or cracked into volatiles which become dispensed and diluted in the gas stream. Further, water is converted into steam. The volatiles including the steam are rapidly removed from the container by virtue of their disbursement into the gas stream. Further transfer of heat to the scrap raises the scrap to a second temperature phase wherein contaminants which are not volatilable, but which are subject to oxidation below 1200.degree. F., are oxidized by oxygen in the gas stream. The scrap is maintained within the second temperature phase for a time sufficient to ensure complete oxidation and then the scrap is discharged from the container.

摘要翻译： 在对污染的金属废料进行净化的过程中，含氧的热气流进入容器的入口端，并从同一容器的出口端排出。 去污废料在入口端装入容器中。 同时废料是（a）从入口端移动到出口端，（b）在容器内部混合并搅拌，和（c）在混合和搅拌期间，与通过内部的热气流接触 容器 废料与热气流的接触处于基本上能够抑制燃烧的条件下。 由于与热气流的接触，来自热气流的热量被转移到废料中，这降低了热气流的温度，同时提高了废料的温度。 这种传热使废料处于第一温度阶段，其中诸如有机物的污染物被挥发和/或破裂成在气流中分配和稀释的挥发物。 此外，水被转化为蒸汽。 包括蒸汽在内的挥发物由于向气流中的分配而快速从容器中移出。 向废料的进一步转移将废料提高到第二温度阶段，其中不可挥发但低于1200°F的氧化物的污染物被气流中的氧氧化。 废料在第二温度阶段内保持足以确保完全氧化的时间，然后将废料从容器中排出。