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公开(公告)号：US20240393052A1
公开(公告)日：2024-11-28
申请号：US18672730
申请日：2024-05-23
Applicant: GLOBALWAFERS JAPAN CO., LTD.
Inventor： Haruo SUDO , Tatsuhiko AOKI , Manabu KATO
Abstract: The timing for removing granular SiOx deposits on an inner wall of a lamp sleeve is easily obtained to prevent a decrease in production efficiency and suppress an increase in power consumption for heat treatment. A heat treatment apparatus includes a plurality of lamps that heats a semiconductor substrate, a lamp sleeve that reflects irradiation light of the plurality of lamps; a power supply that applies a lamp voltage to the plurality of lamps; a temperature detector that detects a temperature of the semiconductor substrate, a controller that controls the lamp voltage or lamp current applied to the plurality of lamps, and a warning unit that makes a warning on timing for cleaning the lamp sleeve through a display or a voice. The controller causes the warning unit to issue a warning when the lamp voltage or lamp current applied to the plurality of lamps exceeds a predetermined threshold.
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公开(公告)号：US11835296B2
公开(公告)日：2023-12-05
申请号：US17458695
申请日：2021-08-27
Applicant: Tata Steel Limited
Inventor： Mark Hayton , Rodney James Dry , Jacques Pilote
CPC classification number: F27D25/001 , B08B9/0328 , B08B9/045 , C21C5/4613 , F27B3/18 , F27D3/18 , F27D25/008 , C21B13/0013 , C21C5/56
Abstract: An apparatus for removing a blockage in a solids injection lance extending into a direct smelting vessel The solids injection lance has a single inlet coupled to a section of supply line that conveys gas and solids to the solids injection lance and that is upstream and co-axial with the solids injection lance. The apparatus has a tool that extends through the supply line section and the solids injection lance to remove a blockage of solid material and an assembly for advancing the tool through the solids injection lance and the supply line section to the blockage from an upstream side of the blockage.
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公开(公告)号：US20220373261A1
公开(公告)日：2022-11-24
申请号：US17327216
申请日：2021-05-21
Applicant: Fives North American Combustion, Inc.
Inventor： Thomas F. Robertson , Douglas A. Clauss
Abstract: A furnace has a melting chamber with a periphery defined by a surrounding wall structure. The furnace is provided with a purge system configured to direct inert gas to flow downward in the melting chamber in the configuration of a curtain that adjoins the wall structure and reaches only partially around the periphery of the melting chamber.
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公开(公告)号：US11353264B2
公开(公告)日：2022-06-07
申请号：US16607864
申请日：2018-04-27
Inventor： Tomohiro Harada , Hiroshi Oonuki
Abstract: A blocking prevention device for a gasification melting system combusts and melts an object to be treated into a slag in a melting furnace after the object to be treated is converted into pyrolysis gas in a gasification furnace, the blocking prevention device including: a slag adhesion prevention device having a slag adhesion prevention capability for preventing adhesion of the slag at an opening part that may be blocked due to the adhesion of the slag; an imaging device that images the opening part; and a control device including a calculation unit that calculates a change rate of an opening area of the opening part using a plurality of images with different capturing times or a video, captured by the imaging device, and a prevention device control unit that changes the slag adhesion prevention capabilities of a plurality of the slag adhesion prevention devices in accordance with the change rate.
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公开(公告)号：US11162733B2
公开(公告)日：2021-11-02
申请号：US15551526
申请日：2016-02-16
Applicant: Tata Steel Limited
Inventor： Mark Hayton , Rodney James Dry , Jacques Pilote
Abstract: A method of removing a blockage in a solids injection lance under normal operating conditions of a direct smelting vessel is disclosed. The direct smelting vessel contains a bath of molten metal and slag and the solids injection lance extends into the direct smelting vessel and has an outlet end that is submerged in the molten slag. The solids injection lance further has a single inlet coupled to a section of supply line that conveys gas and solid feed material to the solids injection lance. The method comprises (a) advancing a blockage-removing tool through the supply line section and through the solids injection lance to an upstream side of the blockage, (b) operating the tool under elevated gas pressure conditions to remove the blockage such that solid feed material and gas are able to flow through the solids injection lance. The method further comprises (c) retracting the tool from the solids injection lance and the supply line section. Also disclosed is an apparatus for removing a blockage in a solids injection lance extending into a direct smelting vessel.
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Patent Agency Ranking
公开(公告)号：US10151534B2
公开(公告)日：2018-12-11
申请号：US15148175
申请日：2016-05-06
Applicant: Larry J Epps
Inventor： Larry J Epps
Abstract: A method (110) for removing a quantity of slag (24) from hot metal (6) in a ladle (2) during a process of metal purification such as steelmaking using an improved skimmer paddle (100) having a system of internal piping (60) that at one end is attached to a source of gas and at a second end terminates into one or more ports (64). The improved skimmer (100) is moved along a top surface (6a) of the hot metal, though the quantity of slag, and predetermined flows of gas are forced into the piping system and expelled through the port or ports (64) to move the quantity of slag out from the back of ladle to be skimmed into a slag pot (4) to remove undesired impurities from the hot metal.
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公开(公告)号：US20180038650A1
公开(公告)日：2018-02-08
申请号：US15551526
申请日：2016-02-16
Applicant: Technological Resources Pty. Limited
Inventor： Mark Hayton , Rodney James Dry , Jacques Pilote
Abstract: A method of removing a blockage in a solids injection lance under normal operating conditions of a direct smelting vessel is disclosed. The direct smelting vessel contains a bath of molten metal and slag and the solids injection lance extends into the direct smelting vessel and has an outlet end that is submerged in the molten slag. The solids injection lance further has a single inlet coupled to a section of supply line that conveys gas and solid feed material to the solids injection lance. The method comprises (a) advancing a blockage-removing tool through the supply line section and through the solids injection lance to an upstream side of the blockage, (b) operating the tool under elevated gas pressure conditions to remove the blockage such that solid feed material and gas are able to flow through the solids injection lance. The method further comprises (c) retracting the tool from the solids injection lance and the supply line section. Also disclosed is an apparatus for removing a blockage in a solids injection lance extending into a direct smelting vessel.
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公开(公告)号：US20180017330A1
公开(公告)日：2018-01-18
申请号：US15213063
申请日：2016-07-18
Applicant: Owens-Brockway Glass Container Inc.
Inventor： Bruce Gunner , Witold Mastek , Jeffrey Alexander
CPC classification number: F27D25/001 , C03B3/023 , F27D3/04 , F27D13/002 , F27D17/004
Abstract: A furnace system includes a furnace and a preheater configured to preheat material before it enters the furnace. The system further includes a duct system including a mixing chamber disposed between the furnace and preheater. The duct system further includes an exhaust duct in fluid communication with an exhaust fluid outlet of the furnace and configured to vent fluid exhausted from the furnace. The exhaust duct is in fluid communication with the mixing chamber and configured to redirect a portion of the fluid exhausted from the furnace to the mixing chamber. The duct system further includes a preheater duct in fluid communication with the mixing chamber and a fluid inlet of the preheater and configured to direct fluid from the mixing chamber to the preheater. The system further includes a duct scraper configured for movement within the mixing chamber to move particulates from the mixing chamber into the exhaust duct.
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公开(公告)号：US09845993B2
公开(公告)日：2017-12-19
申请号：US14398590
申请日：2013-05-08
Applicant: OUTOTEC (FINLAND) OY
Inventor： Peter Björklund , Aki Laaninen , Kaarle Peltoniemi , Lauri Pesonen
Abstract: The invention relates to method and to an arrangement for removing outgrowth in a suspension smelting furnace. The suspension smelting furnace comprising a reaction shaft having a reaction shaft structure. The reaction shaft comprises at least one opening for an outgrowth removal means. The movable piston is arranged such that the movable piston can move in the opening in the reaction shaft and into the reaction shaft to push possible outgrowth in the reaction shaft.
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公开(公告)号：US20170261265A1
公开(公告)日：2017-09-14
申请号：US15447261
申请日：2017-03-02
Applicant: HITACHI METALS, LTD.
Inventor： Keisuke FUJITO , Shohei Hata , Takayuki Tsuji , Hiromitsu Kuroda
Abstract: There is provide an apparatus for manufacturing a copper alloy metal material, including: a tundish in which molten copper is stored; a pouring nozzle through which the molten copper passes, the molten copper being flowed out from the tundish; a pressure variation device that varies a pressure applied to the pouring nozzle by the molten copper; and a controller that controls the pressure variation device so as to remove inclusions adhered to the pouring nozzle, by increasing the pressure applied to the pouring nozzle by the molten copper.
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