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1. 发明申请

US20230040089A1 MELTING METHOD IN AN ELECTRIC ARC FURNACE AND MELTING APPARATUS 有权
公开(公告)号：US20230040089A1
公开(公告)日：2023-02-09
申请号：US17788026
申请日：2020-12-14
申请人： Danieli & C. Officine Meccaniche S.p.A. , Danieli Automation S.p.A
发明人： Stefano TERLICHER , Martino PASSONI
IPC分类号： F27B3/08 , F27B3/28 , F27D11/08 , F27D19/00 , F27D21/00
摘要： Some embodiments described here concern a method for melting metal material in an electric arc furnace, which includes a step of loading solid metal material into the electric furnace, a step of powering the electric furnace and of generating an electric arc between at least one electrode and the metal material, and a step of melting the solid metal material to obtain molten material. Some embodiments described here concern an apparatus for melting metal material including an electric arc furnace and an electric power supply apparatus suitable to power the electric furnace.

2. 发明授权

US11543182B2 Furnace assembly for a metal-making process 有权
公开(公告)号：US11543182B2
公开(公告)日：2023-01-03
申请号：US17143415
申请日：2021-01-07
申请人： ABB Schweiz AG , Tenova S.p.A.
发明人： Lidong Teng , Anders Lehman , Hongliang Yang , Andrea Grasselli , Silvio Maria Reali
IPC分类号： F27B3/08 , F27B3/18 , F27D19/00 , F27D27/00 , F27D3/16 , F27B3/28
摘要： A furnace assembly for a metal-making process, including: an electric arc furnace configured for flat bath operation and having a bottom, and an electromagnetic stirrer configured to be arranged underneath the bottom of the electric arc furnace to enable stirring of molten metal in the electric arc furnace.

3. 发明授权

US11543136B2 Friction heated oven 有权
公开(公告)号：US11543136B2
公开(公告)日：2023-01-03
申请号：US16257933
申请日：2019-01-25
申请人： Thermal Product Solutions
发明人： Barry J. Opdahl , Cory H. Vesey , Michael A. Schneck
IPC分类号： F24C15/32 , F27D19/00 , F27D7/04
摘要： Techniques regarding a fan friction oven are provided. For example, one or more embodiments described herein can regard an apparatus comprising a processing chamber in fluid communication with a heating blower and a circulation blower. The heating blower can heat air adjacent to the processing chamber by fan friction. Also, the circulation blower can circulate the air heated by the heating blower into the processing chamber.

4. 发明申请

US20220381512A1 FURNACE AND METHOD FOR OPERATING A FURNACE 有权
公开(公告)号：US20220381512A1
公开(公告)日：2022-12-01
申请号：US17638324
申请日：2020-08-19
申请人： INNOVATHERM PROF. DR. LEISENBERG GMBH + CO. KG
发明人： Detlef MAIWALD , Frank HEINKE
IPC分类号： F27B13/14 , F27D19/00
摘要： The invention relates to a method and a control device for operating a furnace (10), in particular an anode furnace, the furnace being formed by a plurality of heating channels (12) and furnace chambers (13), the furnace chambers serving to receive carbonaceous products, in particular anodes, and the heating channels serving to control the temperature of the furnace chambers, the furnace comprising at least one furnace unit (11), the furnace unit comprising a heating zone (18), a fire zone (19) and a cooling zone (20), which for their part are formed by at least one section (37, 38, 39, 40, 41, 42) comprising furnace chambers, a suction ramp (15) of the furnace unit being disposed in a section of the heating zone, and a burner ramp (16) of the furnace unit being disposed in a section of the fire zone, process air in the heating channels of the fire zone being heated by means of the burner ramp, and exhaust gas being suctioned from the heating channels of the heating zone by means of the suction ramp, an operation of the ramps being controlled by means of a control device of the furnace unit. An amount of fuel of the burner ramp is determined by means of the control device, a ratio of the combustion air and the amount of fuel being determined for at least one section by means of the control device.

5. 发明授权

US11486644B1 Microprocessor-based controller for pellet burners 有权
公开(公告)号：US11486644B1
公开(公告)日：2022-11-01
申请号：US17110178
申请日：2020-12-02
申请人： Richard Salcedo , Albert Salcedo
发明人： Richard Salcedo , Albert Salcedo
IPC分类号： F27D19/00 , F27D21/00
摘要： A microprocessor-based controller for pellet burners is disclosed that provides a level of safety and reliability to any pellet burner by implementing a feed forward control scheme using sensor detected information in a formula to determine proper processing results, utilizing feedback for proper combustion, such that temperature is effectively controlled, thereby greatly reducing the chance of a fire or an explosion.

6. 发明授权

US11479829B2 Production of iron 有权
公开(公告)号：US11479829B2
公开(公告)日：2022-10-25
申请号：US16343833
申请日：2017-10-24
申请人： Technological Resources Pty. Limited
发明人： Michael Buckley
IPC分类号： C22B5/10 , C21B13/00 , C21B13/12 , F27D19/00 , F27D11/12 , H05B6/80 , C21B15/00 , C22B5/00 , C21B11/10 , F27D99/00
摘要： A continuous process provides direct reduction of iron ore in a solid state. Briquettes of iron ore fragments and biomass are transported through a preheating chamber and preheated to a temperature of at least 400° C. The preheated briquettes are transported through a heating/reduction chamber that has an anoxic environment, and iron ore and biomass in the briquettes are exposed to electromagnetic energy in the form of microwave energy under anoxic conditions. Microwave energy generates heat within iron ore, and biomass acts as a reductant and reduces iron ore in a solid state, as the briquettes move through the heating/reduction chamber.

7. 发明授权

US11435142B2 Microwave furnace and a method of sintering 有权
公开(公告)号：US11435142B2
公开(公告)日：2022-09-06
申请号：US16061271
申请日：2016-12-13
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： Holger Hauptmann
IPC分类号： F27B17/02 , A61C7/12 , A61C13/20 , F27D19/00 , H05B6/64 , H05B6/80
摘要： A microwave furnace has a furnace chamber formed between a chamber housing and a sintering platform for an object to be sintered. A microwave source is arranged for emitting microwaves into the furnace chamber. The microwave furnace further has a susceptor that comprises a material which over a temperature range of the material of at least 23 C to 700 C couples into microwaves. The susceptor and the furnace chamber are movable relative to each other between a first position, in which the susceptor is positioned relative to the furnace chamber, and a second position in which the susceptor is positioned further retracted from the furnace chamber relative to the first position. The invention helps providing a zirconia material with a relative homogeneous material structure.

8. 发明申请

US20220268442A1 DETERMINING ONE OR MORE PROPORTIONAL PARTICLE GROUP SHARES IN FLUE GAS OF A RECOVERY BOILER 有权
公开(公告)号：US20220268442A1
公开(公告)日：2022-08-25
申请号：US17623151
申请日：2020-06-25
申请人： ANDRITZ OY
发明人： Heikki LAPPALAINEN , Petri PYNNÖNEN
IPC分类号： F23N5/26 , D21C11/06 , D21C11/12 , F27D19/00 , F27D21/02 , G01N15/14
摘要： A method and system to determine one or more proportional particle group shares in flue gas of a recovery boiler (110) based on optical information gained from a flue gas sample. A processor (202) is used to read (301) a digital frame comprising the area under consideration, which represents at least a part of the surface of a sampler (120) kept in the flue gas flow of a recovery boiler. Particle group areas matching a color characteristic of the particle group comprised in the flue gas is determined (302) from the area under consideration. The joint area of the identified particle group areas is determined (304), and the share of the joint area from the total area is determined (305) as the proportional particle group share of the particle group.

9. 发明授权

US11384986B2 Open arc condition mitigation based on measurement 有权
公开(公告)号：US11384986B2
公开(公告)日：2022-07-12
申请号：US16499708
申请日：2018-01-22
申请人： Hatch Ltd.
发明人： Dong Shen , Michael Morgan Campbell , Steven Robert Hawthorne
IPC分类号： H05B7/148 , F27D19/00 , F27D11/08 , F27D21/00
摘要： A system measures parameters of the electricity drawn by an arc furnace and, based on an analysis of the parameters, provides indicators of whether arc coverage has been optimized. Factors related to optimization of arc coverage include electrode position, charge level, slag level and slag behaviour. More specifically, such indicators of whether arc coverage has been optimized may be used when determining a position for the electrode such that, to an extent possible, a stable arc cavity is maintained and an open arc condition is avoided. Conveniently, by avoiding open arc conditions, the internal linings of the furnace walls and roof may be protected from excessive wear and tear.

10. 发明授权

US11377721B2 Systems and methods for threading a hot coil on a mill 有权
公开(公告)号：US11377721B2
公开(公告)日：2022-07-05
申请号：US16448330
申请日：2019-06-21
申请人： NOVELIS INC.
发明人： Andrew James Hobbis , Antoine Jean Willy Pralong , Stephen Lee Mick , Rodger Brown , Mark Finn , Peter Knelsen , Terry Lee , Hansjuerg Alder , William Beck , Roberto Quintal , Natasha Iyer , Jeffrey Edward Geho
IPC分类号： B21B39/02 , C22F1/04 , B21C47/18 , B21C47/34 , H05B6/10 , B21C47/16 , B65H29/00 , B65H29/20 , B21D22/02 , B21D37/16 , C21D1/42 , F27D99/00 , H05B6/32 , H05B6/36 , B21B39/34 , B21C37/02 , C21D1/04 , C22C21/02 , C22C21/06 , C22C21/10 , C22C21/12 , B65G54/02 , C22F1/02 , H02N15/00 , F27D19/00
摘要： Systems and methods of threading a metal substrate on a rolling mill include receiving a coil of the metal substrate. The method also includes uncoiling the metal substrate from the coil while the coil and guiding the metal substrate to a work stand of the rolling mill with a threading system.

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