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81.发明授权公开(公告)号：US11124856B1
公开(公告)日：2021-09-21
申请号：US15526826
申请日：2015-11-20
Applicant: FLSmidth A/S , David J. Chaiko
Inventor： David J. Chaiko , Frank Baczek , Sara (Sally) Rocks , Carlos Eyzaguirre
Abstract: Systems for improving metal leach kinetics and metal recovery during atmospheric or substantially atmospheric leaching of a metal sulfide are disclosed. In some embodiments, an oxidative leach circuit 200 may employ Mechano-Chemcial/Physico-Chemical processing means for improving leach kinetics and/or metal recovery. In preferred embodiments, the Mechano-Chemcial/Physico-Chemical means comprises various combinations of stirred-tank reactors 202 and shear-tank reactors 212. As will be described herein, the stirred-tank reactors 202 and shear-tank reactors 212 may be arranged in series and/or in parallel with each other, without limitation. In some non-limiting embodiments, a shear-tank reactor 212 may also be disposed, in-situ, within a stirred-tank reactor 202.
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82.发明申请公开(公告)号：US20210246526A1
公开(公告)日：2021-08-12
申请号：US17272437
申请日：2019-08-27
Applicant: FLSmidth A/S
Inventor： David J. Chaiko
Abstract: A method for removing sulfate iron-containing compounds from a low- to moderate-temperature metal sulfide leach circuit (1) is disclosed. A reactor (6) within a chloride leach circuit (5) and which is preferably maintained at a temperature between 20 and 150 degrees Celsius may be provided with a catalyst (4) comprising a material selected from the group consisting of: colloidal hematite, colloidal goethite, particulate containing FeOOH, particulate containing α-FeOOH, particulate containing γ-FeOOH, particulate containing Fe2O3, particulate containing α-Fe2O3, particulate containing γ-Fe2O3, particulate containing Fe3O4, particulate containing Fe(OH)SO4, and a combination thereof. The catalyst (4) may also be used with heap leach and/or dump leach circuits (22), without limitation. Methods for using and generating the catalyst (4) are also disclosed. In some embodiments, the catalyst (4) may be used as an anti-frothing agent (e.g., for zinc leaching, without limitation).
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公开(公告)号：US11015966B2
公开(公告)日：2021-05-25
申请号：US16634329
申请日：2018-07-05
Applicant: FLSmidth A/S
Inventor： Armin Hauser , Daniel Kasperek
Abstract: A dosing device for the continuous, gravimetric dosing of pourable material particularly rough fuels, wherein a flow of material Is conveyed from a charging opening to an emptying opening in a housing with a rotor which is driven about a vertical rotation axis, while determining the instantaneous load over a measuring section, and with a force measuring device which detects the instantaneous toad of the flow of material guided via the rotor comprising a plurality of ribs and a peripheral ring said ribs being attached to the peripheral ring, and said ribs defining a number of chambers inside the peripheral ring for carrying material during operation wherein an elastic peripheral sealing lip is arranged on the peripheral ring and engaging an upper housing wall such that an outer peripheral volume of the inside of the housing is sealed from a central volume of the housing.
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公开(公告)号：US20210123791A1
公开(公告)日：2021-04-29
申请号：US17254192
申请日：2019-06-18
Applicant: FLSmidth A/S
Inventor： Daniel Kasperek , Armin Hauser
Abstract: An apparatus (1) for continuous gravimetric metering of pourable material comprises a housing (2) comprising a first and a second spaced wall (5,6), a charging port (7) through the first wall (5), and a discharging port (8) through the first wall (5) displaced from the charging port (7) and a primary air port (10) with a primary outlet opening (9) through the second wall (6) opposite to the discharging port (8). In the second wall (6) a secondary air port (12) is provided with a secondary outlet opening (11) having a substantially smaller outlet area than the primary outlet opening (9) and being displaced from the primary outlet opening in opposite direction to the rotational direction of the rotor (3) and being arranged opposite to the discharging port (8), and where the primary and secondary air ports (10,12) are connected to a compressed air supply.
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85.发明申请公开(公告)号：US20210062294A1
公开(公告)日：2021-03-04
申请号：US16992644
申请日：2020-08-13
Applicant: FLSmidth A/S
Inventor： David J. Chaiko , Frank Baczek , Sara (Sally) Rocks , Carlos Eyzaguirre
Abstract: A method of improving metal leach kinetics and recovery during atmospheric or substantially atmospheric leaching of a metal sulfide is disclosed. In some embodiments, the method may comprise the step of processing a metal sulfide concentrate in a reductive activation circuit 220 that operates at a first redox potential, to produce a reductively-activated metal sulfide concentrate. The method may further comprise the step of subsequently processing the activated metal sulfide concentrate in an oxidative leach circuit 240 to extract metal values. In some disclosed embodiments, reductive activation steps and/or oxidative dissolution steps may employ mechano-chemical and/or physico-chemical processing of particles or agglomerates thereof. Reductive activation may be made prior to heap leaching or bio-leaching operations to improve metal extraction. Systems for practicing the aforementioned methods are also disclosed.
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Patent Agency Ranking
86.发明授权公开(公告)号：US10781501B2
公开(公告)日：2020-09-22
申请号：US15527489
申请日：2015-11-20
Applicant: FLSmidth A/S
Inventor： David J. Chaiko , Frank Baczek , Sara (Sally) Rocks , Carlos Eyzaguirre
Abstract: A method of improving metal leach kinetics and recovery during atmospheric or substantially atmospheric leaching of a metal sulfide is disclosed. In some embodiments, the method may comprise the step of processing a metal sulfide concentrate in a reductive activation circuit 220 that operates at a first redox potential, to produce a reductively-activated metal sulfide concentrate. The method may further comprise the step of subsequently processing the activated metal sulfide concentrate in an oxidative leach circuit 240 to extract metal values. In some disclosed embodiments, reductive activation steps and/or oxidative dissolution steps may employ mechano-chemical and/or physico-chemical processing of particles or agglomerates thereof. Reductive activation may be made prior to heap leaching or bio-leaching operations to improve metal extraction. Systems for practicing the aforementioned methods are also disclosed.
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公开(公告)号：US20200207661A1
公开(公告)日：2020-07-02
申请号：US16643190
申请日：2018-08-29
Applicant: FLSmidth A/S
Inventor： Damien Grévain , Mads Nielsen
Abstract: A system for reducing NOx emission levels during the manufacture of cement clinker having a calciner unit with the following features: an upper portion; a lower portion; a NOx reduction zone in the lower portion; a tertiary air inlet in the upper portion for introducing tertiary air into the upper portion; a main calciner meal inlet located above the NOx reduction zone for introducing a main calciner meal portion into the upper portion; a first cooling calciner meal inlet located in the NOx reduction zone for introducing a first cooling calciner meal portion into a periphery of the NOx reduction zone; and a fuel inlet located in or below the NOx reduction zone for introducing fuel into the reduction zone.
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公开(公告)号：US10464103B2
公开(公告)日：2019-11-05
申请号：US15933429
申请日：2018-03-23
Applicant: FLSmidth A/S
Inventor： Christopher Gordon , Daniel Pattinson
Abstract: A spring mount assembly for a vibrating screen, the spring mount assembly having a helical spring; a top helical spring support disposed on the top end of the helical spring for supporting the top end of the helical spring; a bottom helical spring support disposed on the bottom end of the helical spring for supporting the bottom end of the helical spring; a stationary base support; a removable base support disposed on top of the stationary base support between the stationary base support and the bottom helical spring support; a hydraulic cylinder; side supports attached to the stationary base support; and removable posts affixed to the side supports and the top helical spring support. Also provided is a system, and a method, for removing the helical spring, the system having a hydraulic jacking arrangement for creating a gap between the bottom helical spring support and the removable base support.
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公开(公告)号：US20190134640A1
公开(公告)日：2019-05-09
申请号：US16095220
申请日：2017-05-09
Applicant: FLSmidth A/S
Inventor： Philip Hopping
Abstract: A locking bolt assembly (1) for securing a mantle (40) to a head assembly (60) of a crushing device comprising: a locking bolt (10) having a head portion (10a) and a thread portion (10b); a re-useable thrust plate (30) disposed between the head portion (10a) and a top surface portion (42) of the mantle (40); one or more fasteners (20) for connecting the locking bolt (10) to the re-useable thrust plate (30); and one or more permanent jacking screws (34) for forcing the locking bolt (10) up and the thrust plate (30) down onto the top surface portion (42) of the mantle (40) so that the mantle (40) is secured on the head assembly (60). Also provided is a method for securing a mantle (40) to a head assembly (60) of a crushing device using the locking bolt assembly (1).
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公开(公告)号：US20190003770A1
公开(公告)日：2019-01-03
申请号：US15753049
申请日：2016-10-06
Applicant: FLSmidth A/S
Inventor： Alexander Flavio Tokman , Gilla Pommer , Per Ingemann Petersen
CPC classification number: F27B7/2033 , F27B7/2016 , F27B15/003 , F27D17/004 , F27D2017/009
Abstract: The invention relates to multi-stage cement calcining plant suspension preheater of the kind mentioned in the introduction, wherein the preheater comprises a top separator comprising a central tube entering the top separator in a lowermost part of the separator housing whereas the central tubes of the bottom separators enters the separator housing in an upper part of the separator housing.
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