公开(公告)号：US5004888A

公开(公告)日：1991-04-02

申请号：US454495

申请日：1989-12-21

申请人： Charles B. Wolf ,  Shyam V. Dighe ,  Paul E. Martin ,  Raymond F. Taylor, Jr. ,  William J. Melilli

发明人： Charles B. Wolf ,  Shyam V. Dighe ,  Paul E. Martin ,  Raymond F. Taylor, Jr. ,  William J. Melilli

IPC分类号： H05H1/34 ,  H05H1/40

CPC分类号： H05H1/34 ,  H05H1/40 ,  H05H2001/3431

摘要： A plasma torch electrode has a copper outer shell on an inner portion of which is provided a more durable composition of a silver alloy by pressing or casting to achieve longer lifetime under arcing conditions in air or oxygen while minimizing the cost of materials and fabrication.

公开(公告)号：US4998486A

公开(公告)日：1991-03-12

申请号：US343694

申请日：1989-04-27

申请人： Shyam V. Dighe ,  Raymond F. Taylor, Jr. ,  Robert J. Steffen ,  David M. Rohaus

发明人： Shyam V. Dighe ,  Raymond F. Taylor, Jr. ,  Robert J. Steffen ,  David M. Rohaus

IPC分类号： H05H1/26 ,  B09B1/00 ,  B09C1/06 ,  C03C1/00 ,  F23G5/08 ,  F23G5/24 ,  F23G7/00 ,  F23G7/14 ,  F23J1/00 ,  F27B1/08 ,  F27B15/00

CPC分类号： C03C1/002 ,  B09B1/00 ,  B09C1/067 ,  F23G5/085 ,  F23G5/24 ,  F23G7/14 ,  F27B1/08 ,  F23G2206/201 ,  Y02E20/363 ,  Y02E50/30 ,  Y10S588/90

摘要： Excavatged landfill material is treated in a plasma fired cupola in a process wherein hazardous material such as PCB's are volatilized and consumed in an afterburner above the cupola and hazardous materials containing heavy metals are fixed in vitreous material made molten within the cupola and resulting in a non-leachable solid product.

公开(公告)号：US4582004A

公开(公告)日：1986-04-15

申请号：US510508

申请日：1983-07-05

申请人： Maurice G. Fey ,  Joseph W. George ,  Thomas N. Meyer ,  William H. Reed ,  Raymond F. Taylor, Jr.

发明人： Maurice G. Fey ,  Joseph W. George ,  Thomas N. Meyer ,  William H. Reed ,  Raymond F. Taylor, Jr.

IPC分类号： A62D3/00 ,  A62D3/19 ,  A62D3/20 ,  A62D3/35 ,  A62D3/36 ,  A62D3/38 ,  A62D101/22 ,  F23G5/08 ,  F23G7/00 ,  F23J15/04 ,  F23G7/04 ,  F23G7/06 ,  G21F9/14

CPC分类号： A62D3/19 ,  F23G5/085 ,  F23G7/00 ,  F23J15/04 ,  A62D2101/22 ,  A62D2203/10

摘要： This invention relates to an electric arc heater process and apparatus for the essentially complete decomposition of hazardous materials including polychlorinated biphenyls. Finely divided liquid or gaseous hazardous material is injected into a primary gas stream which has been superheated in an electric arc heater. The mixture is directed into a primary reactor for complete decomposition with dwell times in the reactor being in the order of 0.05 to 0.15 seconds. The decomposition products are neutralized with the gases being released to atmosphere and any remaining particulates being collected for ultimate disposal. Large solid hazardous material is first shredded then heated in a roaster or rotary kiln to vaporize the primary gas stream. A soaking reactor is provided where increased dwell times are required for the decomposition of thermally stable compounds which may be formed in the primary reactor. When these compounds are absent the soaking reactor can be by-passed.

摘要翻译： 本发明涉及用于基本上完全分解包括多氯联苯在内的有害物质的电弧加热器方法和装置。 将细分液体或气体有害物质注入已经在电弧加热器中过热的主气流中。 将混合物引入初级反应器以完全分解，反应器中的停留时间为0.05至0.15秒。 分解产物被释放到大气中的气体中和，并收集任何剩余的颗粒以最终处理。 首先将大量固体危险材料切碎，然后在焙烧炉或回转窑中加热以蒸发主气流。 提供均热反应器，其中需要增加的停留时间来分解可在主反应器中形成的热稳定化合物。 当这些化合物不存在时，浸泡反应器可以被旁路。