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公开(公告)号：US11610695B2
公开(公告)日：2023-03-21
申请号：US17048317
申请日：2019-04-18
发明人： Seok-Ju Hwang , Hyun-Je Cho , Ji-Hoon Lee , Cheon-Woo Kim
摘要： A method for decommissioning a nuclear facility includes: separating a nuclear reactor pressure vessel from biodegradable concrete; decommissioning a concrete structure; covering the biodegradable concrete; and decommissioning the biodegradable concrete.
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公开(公告)号：US12022600B2
公开(公告)日：2024-06-25
申请号：US17761500
申请日：2019-10-02
发明人： Hyun-Je Cho , Cheon-Woo Kim
IPC分类号： H05H1/28
CPC分类号： H05H1/28
摘要： A plasma torch has a torch body provided with a plurality of stacked torch body segments disposed between a rear electrode unit and a front electrode unit. The torch body forms a circular channel through which gas flows in an axial direction. Each torch body segment has a circular disc shape in which a central circular through-hole is formed to form the channel. Each segment includes gas supply ports defining a spiral-shaped flow path along the through hole on a first side of the segment so as to introduce a reactive gas, a cooling flow path, a cooling water supply flow path, a cooling water discharge flow path, a gas supply flow path, a gas branch flow path, a cooling water supply branch flow path, and a cooling water discharge branch flow path.
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公开(公告)号：US20220322514A1
公开(公告)日：2022-10-06
申请号：US17761500
申请日：2019-10-02
发明人： Hyun-Je Cho , Cheon-Woo Kim
IPC分类号： H05H1/28
摘要： A plasma torch has a torch body provided with a plurality of stacked torch body segments disposed between a rear electrode unit and a front electrode unit. The torch body forms a circular channel through which gas flows in an axial direction. Each torch body segment has a circular disc shape in which a central circular through-hole is formed to form the channel. Each segment includes gas supply ports defining a spiral-shaped flow path along the through hole on a first side of the segment so as to introduce a reactive gas, a cooling flow path, a cooling water supply flow path, a cooling water discharge flow path, a gas supply flow path, a gas branch flow path, a cooling water supply branch flow path, and a cooling water discharge branch flow path.
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公开(公告)号：US10861613B2
公开(公告)日：2020-12-08
申请号：US15750272
申请日：2015-09-17
发明人： Hyun-Je Cho , Cheon-Woo Kim , Young-II Kim , Young-Hwan Hwang , Sang-Woon Shin
IPC分类号： H05B7/00 , F23G5/08 , C03B5/02 , G21F9/30 , F27B17/00 , F27B3/04 , F23G5/44 , F27D3/00 , F27D3/14 , F27D11/08 , F27D99/00
摘要： The present invention relates to a plasma furnace which can efficiently treat various types of waste in large amounts. The plasma furnace comprises a melting chamber 101 for accommodating a melt, an upper surface forming the upper portion of the melting chamber 101 with a horizontal upper surface 111 and an inclined upper surface 112 having a slope with respect to the horizontal upper surface 111, a melt discharge portion 130 formed through a bottom surface of the melting chamber for discharging molten material therethrough, and an input apparatus 120 having a slope for inputting waste into the melting chamber 101, and the mixed type plasma torch 191, 192 provided on the inclined upper surface 112 with a slope for generating melting heat in the melting chamber 101.
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5.发明授权公开(公告)号：US11032900B2
公开(公告)日：2021-06-08
申请号：US15559588
申请日：2015-09-17
发明人： Sang-Woon Shin , Cheon-Woo Kim , Hyun-Je Cho , Young-Hwan Hwang , Seokju Hwang
摘要： Disclosed is a plasma torch with a structure capable of performing reversed polarity/straight polarity operation, wherein the plasma torch is coupled to a melter and melts a waste material such as radioactive waste or industrial waste by generating and sustaining a plasma arc between electrodes, the plasma torch including: a rear electrode provided inside a torch pipe and electrically connected to become one of an anode and a cathode; and a front electrode provided at a front end of the torch pipe at a position adjacent to a front end of the rear electrode and electrically connected to become a remaining one of the anode and the cathode, wherein electrical connections of the rear and front electrodes are switchable with each other so that the plasma torch operates as a reversed polarity plasma torch or a straight polarity plasma torch.
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公开(公告)号：US10914523B2
公开(公告)日：2021-02-09
申请号：US15750278
申请日：2015-08-18
发明人： Hyun-Je Cho , Cheon-Woo Kim , Sang-Woo Lee , Sang-Woon Shin
摘要： The present invention relates to a plasma furnace capable of separating and discharging different kinds of molten material, which comprises a furnace body 110; and a heating portion 140 for heating the lateral discharge gate 120, 130, wherein the furnace body comprises a melt discharge portion formed through a lower portion of the melting chamber 101 provided for accommodating molten material; and at least two lateral discharge gates 120, 130 provided at different heights capable of discharging molten material.
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