Patents by Inventor Seok-Mo Choi
Seok-Mo Choi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9288847Abstract: A cold crucible induction melter includes an induction coil and a melting furnace. The induction coil serves as a water cooled segment to directly transmit an induced current to a molten material in the cold crucible induction melter (CCIM), improving energy efficiency. Simultaneously, the structure of the CCIM is simplified and enables a smooth discharge even when the molten material consists of a ceramic or a metal material with a high melting point. The cold crucible induction melter heats and melts waste using an induced current which is generated in a water cooled segment by a high frequency current that is applied to the induction coil. The water cooled segment and the induction coil are disposed in a vertical direction so that the induced current that is generated by the induction coil is directly transmitted to the molten material.Type: GrantFiled: September 27, 2010Date of Patent: March 15, 2016Assignee: KOREA HYDRO & NUCLEAR POWER CO., LTDInventors: Cheon-Woo Kim, Seok-Mo Choi, Hyun-Jun Jo, Jong-Kil Park, Young-Bu Choi
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Patent number: 9265096Abstract: A cold crucible induction melter includes a wall formed of a plurality of metal sectors insulated by an insulator. Each metal sector includes an outer curved portion which forms an outer surface of the wall and is convex outward relative to the wall, an inner planar portion which forms an inner surface of the wall, and two side planar portions which connect the inner curved portion to the outer planar portion. The metal sector further includes a cooling passage longitudinally formed inside the metal sector, and an insulation layer covering the inner curved portion and the two side planar portions.Type: GrantFiled: September 26, 2011Date of Patent: February 16, 2016Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Cheon Woo Kim, Deuk Man Kim, Seok Mo Choi, Hyun Jun Jo, Hyun Je Cho, Seung Chul Park, Tae Won Hwang
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Patent number: 9265095Abstract: A cold crucible induction melter includes a wall formed of a plurality of metal sectors insulated by an insulator. Each metal sector includes an inner curved portion which forms an inner surface of the wall and is convex inward relative to the wall, an outer planar portion which forms an outer surface of the wall, and two side planar portions which connect the inner curved portion to the outer planar portion. The metal sector further includes a cooling passage longitudinally formed inside the metal sector, and an insulation layer covering the inner curved portion and the two side planar portions.Type: GrantFiled: September 26, 2011Date of Patent: February 16, 2016Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Cheon Woo Kim, Deuk Man Kim, Seok Mo Choi, Hyun Jun Jo, Hyun Je Cho, Seung Chul Park, Tae Won Hwang
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Patent number: 9212077Abstract: A molten glass discharging device provided in the bottom of a melting furnace of a waste vitrification apparatus so that the device can control the melting or cooling of a molten material. The molten glass discharging device, which is provided in the bottom of the furnace and controls discharging of a molten material, includes: an induction heating unit (110) having a discharging passage (10) along a discharging port formed in the bottom of the melting furnace; an induction coil (120) provided outside the induction heating unit (110); and a cooling unit (130) supporting the induction heating unit (110) and having a cooling conduit through which a cooling fluid circulates. The device can realize repeated discharging of the molten material by induction heating or cooling of the induction heating unit. Further, even when glass is adhered to the discharging port, the adhered glass can be easily discharged from the furnace.Type: GrantFiled: February 15, 2012Date of Patent: December 15, 2015Assignee: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Deuk Man Kim, Seok Mo Choi, Hyun Jun Jo, Hyun Je Cho, Seung Chul Park, Cheon Woo Kim, Tae Won Hwang
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Patent number: 8770118Abstract: An oxygen supplying apparatus of a melting furnace, in which waste contained within the melting furnace is stirred by using an oxygen supplying member of the melting furnace, includes an air cooling member provided in a through hole formed on the melting furnace and mounted on the oxygen supplying member to allow an outside air to enter thereto.Type: GrantFiled: May 8, 2012Date of Patent: July 8, 2014Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Hyun Je Cho, Deuk Man Kim, Seok Mo Choi, Cheon Woo Kim, Tae Won Hwang
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Patent number: 8767794Abstract: A low temperature melting furnace using an external cooling passage includes a wall including a plurality of metal sectors, each metal sector including a cooling passage formed along a longitudinal direction thereof, and an extension tube provided outwardly from the wall and connected to the cooling passage.Type: GrantFiled: May 10, 2012Date of Patent: July 1, 2014Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Hyun Je Cho, Deuk Man Kim, Seok Mo Choi, Cheon Woo Kim, Jung Kwon Son, Tae Won Hwang
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Patent number: 8718114Abstract: An induction melting furnace having an asymmetrical sloping bottom. The melting furnace includes: an induction coil member provided on the melting furnace so as to melt waste contained in the furnace by vitrification; a bottom unit provided in a lower part of the melting furnace, the bottom unit asymmetrically sloping downward in a direction toward a glass discharge port that is formed through the bottom unit; and a cooling member integrated with the bottom unit. Due to the asymmetrical sloping bottom of the furnace, waste in the furnace can be completely melted and can be easily discharged to the outside and, accordingly, the time and cost required to treat the waste are reduced and this improves work efficiency when treating the waste. Further, due to the insulation material, the melting furnace can be protected from electric damage that may be caused by electric arc.Type: GrantFiled: February 15, 2012Date of Patent: May 6, 2014Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Hyun Jun Jo, Deuk Man Kim, Seok Mo Choi, Hyun Je Cho, Seung Chul Park, Cheon Woo Kim, Tae Won Hwang
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Publication number: 20130283862Abstract: A molten glass discharging device provided in the bottom of a melting furnace of a waste vitrification apparatus so that the device can control the melting or cooling of a molten material. The molten glass discharging device, which is provided in the bottom of the furnace and controls discharging of a molten material, includes: an induction heating unit (110) having a discharging passage (10) along a discharging port formed in the bottom of the melting furnace; an induction coil (120) provided outside the induction heating unit (110); and a cooling unit (130) supporting the induction heating unit (110) and having a cooling conduit through which a cooling fluid circulates. The device can realize repeated discharging of the molten material by induction heating or cooling of the induction heating unit. Further, even when glass is adhered to the discharging port, the adhered glass can be easily discharged from the furnace.Type: ApplicationFiled: February 15, 2012Publication date: October 31, 2013Applicant: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Deuk Man Kim, Seok Mo Choi, Hyun Jun Jo, Hyun Je Cho, Seung Chul Park, Cheon Woo Kim, Tae Won Hwang
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Publication number: 20130266037Abstract: An induction melting furnace having an asymmetrical sloping bottom. The melting furnace includes: an induction coil member provided on the melting furnace so as to melt waste contained in the furnace by vitrification; a bottom unit provided in a lower part of the melting furnace, the bottom unit asymmetrically sloping downward in a direction toward a glass discharge port that is formed through the bottom unit; and a cooling member integrated with the bottom unit. Due to the asymmetrical sloping bottom of the furnace, waste in the furnace can be completely melted and can be easily discharged to the outside and, accordingly, the time and cost required to treat the waste are reduced and this improves work efficiency when treating the waste. Further, due to the insulation material, the melting furnace can be protected from electric damage that may be caused by electric arc.Type: ApplicationFiled: February 15, 2012Publication date: October 10, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Jun Jo, Deuk Man Kim, Seok Mo Choi, Hyun Je Cho, Seung Chul Park, Cheon Woo Kim, Tae Won Hwang
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Publication number: 20130235896Abstract: The present invention provides a metal sector and a cold crucible induction melter having the same. The cold crucible induction melter includes a wall formed of a plurality of metal sectors insulated by an insulator. Each metal sector includes an outer curved portion which forms an outer surface of the wall and is convex outward relative to the wall, an inner planar portion which forms an inner surface of the wall, and a side planar portion which connects the outer curved portion to the inner planar portion.Type: ApplicationFiled: September 26, 2011Publication date: September 12, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Cheon Woo Kim, Deuk Man Kim, Seok Mo Choi, Hyun Jun Jo, Hyun Je Cho, Seung Chul Park, Tae Won Hwang
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Publication number: 20130223471Abstract: The present invention provides a metal sector and a cold crucible induction melter having the same. The cold crucible induction melter includes a wall formed of a plurality of metal sectors insulated by an insulator. Each metal sector includes an inner curved portion which forms an inner surface of the wall and is convex inward relative to the wall, an outer planar portion which forms an outer surface of the wall, and a side planar portion which connects the inner curved portion to the outer planar portion.Type: ApplicationFiled: September 26, 2011Publication date: August 29, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Cheon Woo Kim, Deuk Man Kim, Seok Mo Choi, Hyun Jun Jo, Hyun Je Cho, Seung Chul Park, Tae Won Hwang
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Publication number: 20130208757Abstract: A low temperature melting furnace using an external cooling passage includes a wall including a plurality of metal sectors, each metal sector including a cooling passage formed along a longitudinal direction thereof, and an extension tube provided outwardly from the wall and connected to the cooling passage.Type: ApplicationFiled: May 10, 2012Publication date: August 15, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Je CHO, Deuk Man KIM, Seok Mo CHOI, Cheon Woo KIM, Jung Kwon SON, Tae Won HWANG
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Publication number: 20130208756Abstract: A low temperature melting furnace having improved cooling flow includes a wall including a plurality of metal sectors, wherein a metal sector includes a first metal sector and a second metal sector, which are formed in one unit, and a cooling passage through which a cooling water flows is formed in each of the first metal sector and the second metal sector, the first metal sector and the second metal sector being connected to each other through a connection unit.Type: ApplicationFiled: May 10, 2012Publication date: August 15, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Je CHO, Deuk Man KIM, Seok Mo CHOI, Cheon Woo KIM, Jung Kwon SON, Tae Won HWANG
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Patent number: 8498320Abstract: A melting furnace includes a gas supplying unit configured to protrude inwardly of the melting furnace to supply a gas to the melting furnace, the gas supplying unit including a gas supplying pipe configured to penetrate the melting furnace to protrude inwardly of the melting furnace and configured to have a nozzle hole formed at a front end thereof; and a cooling passage pipe provided outside the gas supplying pipe to include a second cooling passage through which a cooling liquid flows, the second cooling passage being directly connected to a first cooling passage through which the cooling liquid is circulated along a wall of the melting furnace.Type: GrantFiled: May 8, 2012Date of Patent: July 30, 2013Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Deuk Man Kim, Hyun Je Cho, Seok Mo Choi, Cheon Woo Kim, Tae Won Hwang
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Publication number: 20130182740Abstract: A cold crucible induction melter includes an induction coil and a melting furnace. The induction coil serves as a water cooled segment to directly transmit an induced current to a molten material in the cold crucible induction melter (CCIM), improving energy efficiency. Simultaneously, the structure of the CCIM is simplified and enables a smooth discharge even when the molten material consists of a ceramic or a metal material with a high melting point. The cold crucible induction melter heats and melts waste using an induced current which is generated in a water cooled segment by a high frequency current that is applied to the induction coil. The water cooled segment and the induction coil are disposed in a vertical direction so that the induced current that is generated by the induction coil is directly transmitted to the molten material.Type: ApplicationFiled: September 27, 2010Publication date: July 18, 2013Applicant: Korea Hydro & Nuclear Power Co., LtdInventors: Cheon-Woo Kim, Seok-Mo Choi, Hyun-Jun Jo, Jong-Kil Park, Young-Bu Choi
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Publication number: 20130070803Abstract: A melting furnace includes a gas supplying unit configured to protrude inwardly of the melting furnace to supply a gas to the melting furnace, the gas supplying unit including a gas supplying pipe configured to penetrate the melting furnace to protrude inwardly of the melting furnace and configured to have a nozzle hole formed at a front end thereof; and a cooling passage pipe provided outside the gas supplying pipe to include a second cooling passage through which a cooling liquid flows, the second cooling passage being directly connected to a first cooling passage through which the cooling liquid is circulated along a wall of the melting furnace.Type: ApplicationFiled: May 8, 2012Publication date: March 21, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Deuk Man KIM, Hyun Je Cho, Seok Mo Choi, Cheon Woo Kim, Tae Won Hwang
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Publication number: 20130068420Abstract: An oxygen supplying apparatus of a melting furnace, in which waste contained within the melting furnace is stirred by using an oxygen supplying member of the melting furnace, includes an air cooling member provided in a through hole formed on the melting furnace and mounted on the oxygen supplying member to allow an outside air to enter thereto.Type: ApplicationFiled: May 8, 2012Publication date: March 21, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Je CHO, Deuk Man Kim, Seok Mo Choi, Cheon Woo Kim, Tae Won Hwang
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Publication number: 20080282943Abstract: The present invention relates to a dust recycling and re-treating system and a method for the same, and in particular, to a dust recycling and re-treating system and a method for the same, which produces dusts generated from an incinerating and melting processing equipment for hazardous wastes, particularly, radioactive wastes, in a slurry form, and recycles and re-treats them within an existing melting furnace.Type: ApplicationFiled: October 26, 2006Publication date: November 20, 2008Inventors: Jong Ho Bae, Young Hwan You, Choong Keun Kim, Jong Seo Choi, Sang Woon Shin, Tae Won Hwang, Seung Chul Daejeon, Seok Mo Choi
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Publication number: 20040265699Abstract: A lead storage battery electrode and a method for manufacturing the same are provided. The lead storage battery electrode includes a substrate, which is casted or expanded using lead, an active material coated on the substrate with electrochemical activities, and support layers and formed by embedding porous nonwoven fabric to a predetermined depth from both surfaces of the active material. The support layers prevent the separation of the active material in the manufacture of the electrode and make handling the active material easier. The porosity of the nonwoven fabric enhances the initial high rate discharge properties of the electrode, and the network structure of the nonwoven fabric, which is acid-resistant, stably supports the active material, so that the life cycle of the lead storage battery is prolonged.Type: ApplicationFiled: August 23, 2004Publication date: December 30, 2004Inventors: Seok-Mo Choi, Kwang-Seok Kim, Young-Sup Shim