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.

    Stator for flotation machines
    73.
    发明授权

    公开(公告)号:US10137461B2

    公开(公告)日:2018-11-27

    申请号:US14440225

    申请日:2013-11-06

    Applicant: FLSmidth A/S

    Abstract: A flotation machine includes a stator positioned in a tank adjacent a rotor. The stator has a plurality of vanes. Each of the vanes has a plurality of slots formed therein. Each of the slots has a shape that is elongated in a direction along the width of the vane in which the slot is formed. Each of the vanes is spaced apart from the other vanes to which that vane is adjacent. The vanes are positioned in series adjacent a periphery of the stator to define a central opening within the stator that is sized such that the rotor of a flotation machine may be positioned therein. The stator may be retrofitted onto a prior flotation machine installation. For instance, a stator may be offered for sale and then installed onto a flotation machine. A previous stator may be removed before the installation of the new stator.

    Open-channel feed dilution system for a thickener or settling tank
    76.
    发明授权
    Open-channel feed dilution system for a thickener or settling tank 有权
    用于增稠剂或沉淀池的开放式饲料稀释系统

    公开(公告)号:US09289701B2

    公开(公告)日:2016-03-22

    申请号:US13993475

    申请日:2011-12-09

    Abstract: An open-channel infeed conduit of a feed dilution system of a thickener/clarifier settling tank is provided with orifices between its upstream inlet end and its outlet end. The orifices are positioned proximate to and in fluid communication with the clarified liquid phase in the tank to draw clarified liquid from the tank into the conduit responsive to or by virtue of momentum transfer between the flow of the liquid slurry feed stream in the conduit and the clarified liquid in the tank.

    Abstract translation: 增稠器/澄清池沉淀池的进料稀释系统的开放通道进料管道在其上游入口端和其出口端之间设有孔口。 孔口定位成与罐中的澄清液相接近并与流体连通,以将澄清的液体从罐中引入管道中,以响应于或通过在管道中的液体浆料进料流的流动之间的动量传递和 在罐中澄清液体。

    De-aeration device
    77.
    发明授权
    De-aeration device 有权
    脱气装置

    公开(公告)号:US09283569B2

    公开(公告)日:2016-03-15

    申请号:US14241603

    申请日:2012-08-29

    Applicant: Taavi Orupold

    Inventor: Taavi Orupold

    CPC classification number: B03B1/00 B01D19/0042 B03B5/623

    Abstract: The invention resides in a de-aeration device including at least one de-aeration chamber for locating a slurry; at least one slurry inlet connected to the de-aeration chamber to allow the slurry to pass into the de-aeration chamber; at least one slurry outlet to allow slurry to pass out of the de-aeration chamber; and at least one de-aeration face for collecting and transporting air from the slurry.

    Abstract translation: 本发明涉及一种除气装置,其包括用于定位浆料的至少一个除气室; 至少一个浆料入口连接到除气室以允许浆料进入去气室; 至少一个浆料出口以允许浆料从除气室中通过; 和用于从浆料收集和输送空气的至少一个除气面。

    Quick change filter cloth
    78.
    发明授权
    Quick change filter cloth 有权
    快速更换滤布

    公开(公告)号:US09233321B2

    公开(公告)日:2016-01-12

    申请号:US14398159

    申请日:2013-05-23

    Applicant: FLSmidth A/S

    CPC classification number: B01D25/164 B01D25/176

    Abstract: A filter plate assembly [1] comprises a filter plate [100] having a recess [102], a radially-inwardly extending shelf portion [108] having a seat surface [101], and a feed eye aperture [110] extending through the shelf portion. An adapter ring [170] is placed within said recess [102]. The adapter ring [170] has a flange [172] and a barrel [179] extending from the flange [172]. The barrel [179] has an inner wall [180] and an outer wall [182], and is positioned within said aperture [110] such that the outer wall [182] of the barrel [179] is in close proximity with said aperture [110]. The flange [172] comprises an inner surface [173] which abuts the seat surface [101]. The filter plate assembly [1] further comprises a filter cloth assembly [160] comprising a filter cloth [168] having an aperture [168B], and a grommet [168A] fitted within the filter cloth aperture [168B]. The grommet [168A] is configured to align with the adapter ring [170], and comprises a collar [167] having an inner surface [167A] which is bonded or mechanically attached to a first side [188] of the filter cloth [168]. A second side [189] of the filter cloth [168] abuts a sealing surface [185] of the adapter ring [170].

    Abstract translation: 过滤板组件[1]包括具有凹部[102]的过滤板[100],具有座表面[101]的径向向内延伸的搁架部分[108]和延伸穿过 搁板部分。 适配器环[170]被放置在所述凹部[102]内。 适配环[170]具有从凸缘[172]延伸的凸缘172和筒体179。 枪管[179]具有内壁和外壁[182],并且定位在所述孔[110]内,使得枪管[179]的外壁[182]紧邻所述孔 [110]。 凸缘172包括邻接座表面[101]的内表面173。 过滤板组件[1]还包括滤布组件[160],其包括具有孔[168B]的滤布[168]和安装在滤布孔[168B]内的垫圈[168A]。 垫圈[168A]构造成与适配器环[170]对准,并且包括具有内表面[167A]的套环[167],内表面[167A]被粘合或机械地附接到滤布[168]的第一侧[188] ]。 滤布[168]的第二侧[189]邻接适配器环[170]的密封表面[185]。

    THICKENER/CLARIFIER DRIVE APPARATUS AND METHODS THEREOF
    79.
    发明申请
    THICKENER/CLARIFIER DRIVE APPARATUS AND METHODS THEREOF 审中-公开
    加厚器/清洗器驱动装置及其方法

    公开(公告)号:US20150224425A1

    公开(公告)日:2015-08-13

    申请号:US14427047

    申请日:2013-10-15

    Applicant: FLSMIDTH A/S

    Abstract: Disclosed, is a drive (101) for a sedimentation tank (1000) comprising a main ring gear (160) operatively connected to a cage (150) via a web portion (152). A bearing transfer ring (170) is provided to the web portion (152) such that a gap (172) is provided between the bearing transfer ring (170) and the main ring gear (160). The bearing transfer ring (170) is connected to a first bearing race (144) which communicates with a second bearing race (142) that is fastened to a base portion (136) of the drive (101). Torque (T) is delivered to the cage (150) to turn a rake assembly (1002). The gap (172) provides clearance for deflections, distortions, or deformations of the main ring gear (160) caused by bending stresses (B) in the main ring gear (160) may. The bearing transfer ring (170) absorbs stresses imparted to the main ring gear (160) and prevents fasteners (188) connected to stiff bearing races (144) from shearing. Also disclosed is a retrofit kit for a sedimentation tank drive, a sedimentation tank (1000) having a drive (101) according to the above description, and a method of thickening/clarifying slurry (1008) utilizing a drive (101) according to the above description.

    Abstract translation: 公开了一种用于沉淀池(1000)的驱动器(101),其包括通过腹板部分(152)可操作地连接到保持架(150)的主环形齿轮(160)。 轴承传送环(170)设置到腹板部分(152),使得在轴承传递环(170)和主齿圈(160)之间设置间隙(172)。 轴承传送环(170)连接到与紧固到驱动器(101)的基部(136)的第二轴承座(142)连通的第一轴承座(144)。 转矩(T)被传递到保持架(150)以转动耙组件(1002)。 间隙(172)提供由主环形齿轮(160)中的弯曲应力(B)引起的主环形齿轮(160)的偏转,变形或变形的间隙。 轴承传送环(170)吸收施加到主齿圈(160)的应力,并且防止与刚性轴承座(144)连接的紧固件(188)不被剪切。 还公开了一种用于沉淀池驱动装置的改装套件,具有根据上述说明的驱动装置(101)的沉淀池(1000),以及利用根据本发明的驱动装置(101)来增稠/澄清浆料(1008)的方法 以上说明。

    SYSTEM AND PROCESS FOR THE CONTINUOUS RECOVERY OF METALS
    80.
    发明申请
    SYSTEM AND PROCESS FOR THE CONTINUOUS RECOVERY OF METALS 审中-公开
    金属连续回收的系统与工艺

    公开(公告)号:US20140144788A1

    公开(公告)日:2014-05-29

    申请号:US14009130

    申请日:2012-04-02

    Applicant: Cameron Barton

    Inventor: Cameron Barton

    CPC classification number: C25C1/00 C22B3/02 C22B3/04 Y02P10/234

    Abstract: A system [100′] and process [100] for the continuous recovery of metals is disclosed. The system [100′] comprises a continuous acid wash system [10′], a holding tank [60], a continuous elution system [20′], a continuous electrowinning system [40′], a carbon regeneration system [30′], and a continuous carbon loading/adsorption system [70′]. The systems and methods disclosed overcome the disadvantages associated with current systems and processes which utilize batch process steps and equipment designed for batch processes. The systems [10′, 20′, 30′] are each configured to receive a continuous inflow of a solution or slurry and deliver a continuous outflow of a solution or slurry, without interruptions which are common with conventional metal recovery systems [9000′].

    Abstract translation: 公开了用于连续回收金属的系统[100']和方法[100]。 系统[100']包括连续酸洗系统[10'],保持罐[60],连续洗脱系统[20'],连续电解提取系统[40'],碳再生系统[30'] ,和连续的碳负载/吸附系统[70']。 所公开的系统和方法克服了与利用批处理步骤和为批处理设计的设备的当前系统和过程相关的缺点。 系统[10',20',30']各自被配置为接收溶液或浆料的连续流入并输送溶液或浆料的连续流出,而不会中断,这是常规金属回收系统[9000] 。

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