Locking bolt assembly for a crusher device

    公开(公告)号:US10569274B2

    公开(公告)日:2020-02-25

    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 includes 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).

    System and method for above-atmospheric leaching of metal sulfides

    公开(公告)号:US10526681B2

    公开(公告)日:2020-01-07

    申请号:US15528698

    申请日:2015-12-16

    Abstract: A system and method for improving leach kinetics and recovery during above-atmospheric leaching of a metal sulfide is disclosed. In some embodiments, the method may comprise the steps of: (a) producing a metal sulfide concentrate [34] via flotation; (b) moving the produced metal sulfide concentrate [34] to at least one chamber [22a] of at least one reactor such as an autoclave [20]; (c) leaching the produced metal sulfide concentrate in said at least one chamber [22a] in the presence of oxygen [82] at a pressure and/or temperature above ambient, and in the presence of partially-used [25] and/or or new [92] grinding media within the at least one chamber [22a]. Systems [10] and apparatus [20, 200] for practicing the aforementioned method are also disclosed.

    SPRING MOUNT ASSEMBLY FOR A VIBRATING SCREEN
    54.
    发明申请

    公开(公告)号:US20190291137A1

    公开(公告)日:2019-09-26

    申请号:US15933429

    申请日:2018-03-23

    Applicant: FLSmidth A/S

    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.

    Methods for rapidly leaching chalcopyrite

    公开(公告)号:US10407753B2

    公开(公告)日:2019-09-10

    申请号:US15535000

    申请日:2015-12-21

    Abstract: A method of improving leach kinetics and recovery during atmospheric or above-atmospheric leaching of a metal sulfide is disclosed. A system for practicing the aforementioned method is also disclosed. Apparatus for practicing the aforementioned method is also disclosed. A new composition of matter which is formed by the aforementioned method, and which may be utilized in the system and apparatus is further disclosed. The new composition of matter may exhibit improved leach kinetics, and may have some utility in the semi-conductor arts, including uses within photovoltaic materials.

    Heavy duty drive arrangement and mill

    公开(公告)号:US10335797B2

    公开(公告)日:2019-07-02

    申请号:US14895303

    申请日:2014-07-08

    Applicant: FLSmidth A/S

    Abstract: A heavy duty drive arrangement (1, 1′) having a first spur gear including a first gear wheel (4; 4′, 4″) meshing with a pinion (3) of a motor (2) and a second spur gear comprising a gear wheel (8; 8′, 8″). A drive pinion (9; 9′, 9″) configured to mesh with a ring gear (10) of the working equipment is coupled to the gear wheel (8; 8′, 8″) of the second spur gear and has an axis of rotation (E) which is essentially parallel to the rotor axis (A). The first spur gear and the second spur gear are coupled by means of a dynamic coupling (5; 5′, 5″), preferably an elastic or a hydrodynamic coupling. A mill (20) may include the heavy duty drive arrangement (1, 1′).

    SYSTEM AND METHOD FOR ABOVE-ATMOSPHERIC LEACHING OF METAL SULFIDES

    公开(公告)号:US20190100823A1

    公开(公告)日:2019-04-04

    申请号:US15528698

    申请日:2015-12-16

    Applicant: FLSmidth A/S

    Abstract: A system and method for improving leach kinetics and recovery during above-atmospheric leaching of a metal sulfide is disclosed. In some embodiments, the method may comprise the steps of: (a) producing a metal sulfide concentrate [34] via flotation; (b) moving the produced metal sulfide concentrate [34] to at least one chamber [22a] of at least one reactor such as an autoclave [20]; (c) leaching the produced metal sulfide concentrate in said at least one chamber [22a] in the presence of oxygen [82] at a pressure and/or temperature above ambient, and in the presence of partially-used [25] and/or or new [92] grinding media within the at least one chamber [22a]. Systems [10] and apparatus [20, 200] for practicing the aforementioned method are also disclosed.

    Controlling a high voltage power supply for an electrostatic precipitator

    公开(公告)号:US10245595B2

    公开(公告)日:2019-04-02

    申请号:US15318647

    申请日:2015-06-11

    Applicant: FLSmidth A/S

    Abstract: A high voltage power supply for an electrostatic precipitator comprises a high voltage transformer, a high voltage bridge rectifier and a semiconductor switch controller configured to control an output power level of the high voltage power supply. A control unit (50) is configured to determine a firing angle of firing pulses for the semiconductor switch controller. During normal operation, a peak voltage value is measured and stored in each half period. When a breakdown is detected, a residual voltage (Ur) over the electrostatic precipitator is measured. A firing angle (α1) of a firing pulse to be provided to said semiconductor switch controller in the first half period after the breakdown is determined from the latest stored measured peak voltage value (Ubef) and the measured residual voltage (Ur) based on a predetermined relationship between the firing angle (α1) and said measured voltages.

    Extraction mechanism for comminution device

    公开(公告)号:US10232380B2

    公开(公告)日:2019-03-19

    申请号:US15527451

    申请日:2016-01-13

    Abstract: A comminution device can include a crushing body extraction mechanism. The crushing body extraction mechanism can be configured to permit one or more crushing bodies (e.g. rollers of a roller press, etc.) to be continuously moved linearly away from a frame to expose the crushing bodies from the frame. In some embodiments, the extraction mechanism may be configured to utilize one or more rack and pinion mechanisms. The pinion for each such mechanism may be powered by one or more rotary motors or other type of rotary drive mechanism. In other embodiments, the extraction mechanism can include one or more rack and ratchet mechanisms. Each rack and ratchet mechanism may include a hydraulic cylinder or other linear actuator that is extendable and retractable for actuating motion of a ratchet along a rack having columns of differently angled steps to facilitate extension and retraction of one or more crushing bodies.

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