公开(公告)号：WO1997049641A2

公开(公告)日：1997-12-31

申请号：PCT/US1997009913

申请日：1997-06-06

Applicant: SCIENCE APPLICATIONS INTERNATIONAL CORPORATION

Inventor： SCIENCE APPLICATIONS INTERNATIONAL CORPORATION ,  BATDORF, James, A. ,  DALTON, John, D. ,  GEIMER, Raymond, M. ,  GILLINS, Robert, L. ,  LARSEN, Milo, M. ,  LEATHERMAN, Gary, L. ,  POLING, Steven, D. ,  WOLFE, William, P.

IPC: C03B05/00

CPC classification number: F23G5/16 ,  B09B3/00 ,  B09B3/005 ,  B09C1/067 ,  C03B5/005 ,  C03B5/025 ,  C22B4/005 ,  C22B7/001 ,  F23G5/006 ,  F23G5/085 ,  F23J15/006 ,  G21F9/308 ,  G21F9/32 ,  Y02P10/214 ,  Y02P40/57 ,  Y10S588/90

Abstract: A waste treatment system is provided, including a waste melter system (14) and an air pollution control system (16). Hazardous and/or radioactive waste in drums is conducted through a waste feed system into a plasma chamber (20) where the waste is exposed to heat from a plasma torch (22). A part of the waste volatilizes and leaves the plasma chamber (26) for a secondary reaction chamber (32), in which the waste is combusted to form a waste gas stream. The air pollution control system (16) treats the waste gas stream through quenching, filtering and scrubbing, to produce a clean gas stream suitable for release to the atmosphere. Offgas may be recirculated through the waste treatment system as desired. The waste remaining inside the plasma chamber melts and drops onto sloped processing surfaces inside a hearth located below the plasma torch. The hearth includes ground electrodes configured for electrical contact with waste held in the hearth so that the melted waste in the hearth may be further heated by the plasma torch. As the melted waste is heated inside the hearth, the hearth is static, enabling the melted waste to separate into a first metal fraction having a high specific gravity and a second slag fraction having a relatively lower specific gravity. When the melted waste is processed sufficiently, the hearth is first lowererd from the plasma chamber and then tilted in a first direction to pour the slag fraction and then tilted in another to pour the metal fraction from under an underflow weir configured in the hearth. The hearth includes a second ground electrode strategically situated near the underflow weir to ensure that the waste remains melted as it flows through a flow path under the underflow weir.

Abstract translation: 提供了一种废物处理系统，包括废物熔化器系统（14）和空气污染控制系统（16）。 鼓中的有害和/或放射性废物通过废物进料系统进入等离子体室（20），在该等离子体室（20）中废物暴露于等离子体焰炬（22）的热量。 废物的一部分挥发并离开用于二次反应室（32）的等离子体室（26），其中废物被燃烧以形成废气流。 空气污染控制系统（16）通过淬火，过滤和洗涤处理废气流，产生适合释放到大气中的清洁气流。 废气可以根据需要再循环通过废物处理系统。 留在等离子体室内的废物熔化并滴落到位于等离子体焰炬下方的炉膛内的倾斜处理表面上。 炉膛包括配置为与搁置在炉膛中的废物电接触的接地电极，使得炉膛中的熔化废物可以被等离子炬进一步加热。 当熔化的废物在炉膛内被加热时，炉床是静态的，使得熔化的废物能够分离成具有高比重的第一金属部分和具有相对较低比重的第二炉渣部分。 当熔化的废物被充分处理时，炉床首先从等离子体室下降，然后沿第一方向倾斜以倾倒炉渣部分，然后倾斜在另一个炉渣中，从而在配置在炉膛中的下溢堰下方倾倒金属部分。 炉膛包括位于下溢堰附近的第二接地电极，以确保废物在流过下溢堰下方的流动路径时保持熔化。

公开(公告)号：EP0906249A2

公开(公告)日：1999-04-07

申请号：EP97945172.0

申请日：1997-06-06

Applicant: Science Applications International Corporation

Inventor： BATDORF, James, A. ,  DALTON, John, D. ,  GEIMER, Raymond, M. ,  GILLINS, Robert, L. ,  LARSEN, Milo, M. ,  LEATHERMAN, Gary, L. ,  POLING, Steven, D. ,  WOLFE, William, P.

IPC: B09B3 ,  B09C1 ,  C03B5 ,  C22B4 ,  C22B7 ,  F23G5 ,  F23J15 ,  G21F9

CPC classification number: F23G5/16 ,  B09B3/00 ,  B09B3/005 ,  B09C1/067 ,  C03B5/005 ,  C03B5/025 ,  C22B4/005 ,  C22B7/001 ,  F23G5/006 ,  F23G5/085 ,  F23J15/006 ,  G21F9/308 ,  G21F9/32 ,  Y02P10/214 ,  Y02P40/57 ,  Y10S588/90

Abstract: A waste treatment system is provided, including a waste melter system (14) and an air pollution control system (16). Hazardous and/or radioactive waste in drums is conducted through a waste feed system into a plasma chamber (20) where the waste is exposed to heat from a plasma torch (22). A part of the waste volatilizes and leaves the plasma chamber (26) for a secondary reaction chamber (32), in which the waste is combusted to form a waste gas stream. The air pollution control system (16) treats the waste gas stream through quenching, filtering and scrubbing, to produce a clean gas stream suitable for release to the atmosphere. Offgas may be recirculated through the waste treatment system as desired. The waste remaining inside the plasma chamber melts and drops onto sloped processing surfaces inside a hearth located below the plasma torch. The hearth includes ground electrodes configured for electrical contact with waste held in the hearth so that the melted waste in the hearth may be further heated by the plasma torch. As the melted waste is heated inside the hearth, the hearth is static, enabling the melted waste to separate into a first metal fraction having a high specific gravity and a second slag fraction having a relatively lower specific gravity. When the melted waste is processed sufficiently, the hearth is first lowererd from the plasma chamber and then tilted in a first direction to pour the slag fraction and then tilted in another to pour the metal fraction from under an underflow weir configured in the hearth. The hearth includes a second ground electrode strategically situated near the underflow weir to ensure that the waste remains melted as it flows through a flow path under the underflow weir.

公开(公告)号：EP0906249B1

公开(公告)日：2002-02-27

申请号：EP97945172.1

申请日：1997-06-06

Applicant: Science Applications International Corporation

Inventor： BATDORF, James, A. ,  DALTON, John, D. ,  GEIMER, Raymond, M. ,  GILLINS, Robert, L. ,  LARSEN, Milo, M. ,  LEATHERMAN, Gary, L. ,  POLING, Steven, D. ,  WOLFE, William, P.

IPC: C03B5/00 ,  C03B5/02 ,  F23G5/32 ,  F23G5/08 ,  B09B3/00 ,  F27D23/00 ,  G21F9/16

CPC classification number: F23G5/16 ,  B09B3/00 ,  B09B3/005 ,  B09C1/067 ,  C03B5/005 ,  C03B5/025 ,  C22B4/005 ,  C22B7/001 ,  F23G5/006 ,  F23G5/085 ,  F23J15/006 ,  G21F9/308 ,  G21F9/32 ,  Y02P10/214 ,  Y02P40/57 ,  Y10S588/90

Abstract: A waste treatment system is provided, including a waste melter system (14) and an air pollution control system (16). Hazardous and/or radioactive waste in drums is conducted through a waste feed system into a plasma chamber (20) where the waste is exposed to heat from a plasma torch (22). A part of the waste volatilizes and leaves the plasma chamber (26) for a secondary reaction chamber (32), in which the waste is combusted to form a waste gas stream. The air pollution control system (16) treats the waste gas stream through quenching, filtering and scrubbing, to produce a clean gas stream suitable for release to the atmosphere. Offgas may be recirculated through the waste treatment system as desired. The waste remaining inside the plasma chamber melts and drops onto sloped processing surfaces inside a hearth located below the plasma torch. The hearth includes ground electrodes configured for electrical contact with waste held in the hearth so that the melted waste in the hearth may be further heated by the plasma torch. As the melted waste is heated inside the hearth, the hearth is static, enabling the melted waste to separate into a first metal fraction having a high specific gravity and a second slag fraction having a relatively lower specific gravity. When the melted waste is processed sufficiently, the hearth is first lowererd from the plasma chamber and then tilted in a first direction to pour the slag fraction and then tilted in another to pour the metal fraction from under an underflow weir configured in the hearth. The hearth includes a second ground electrode strategically situated near the underflow weir to ensure that the waste remains melted as it flows through a flow path under the underflow weir.