公开(公告)号：US5354255A

公开(公告)日：1994-10-11

申请号：US992327

申请日：1992-12-17

申请人： Leonard Shapiro

发明人： Leonard Shapiro

IPC分类号： B04B1/20

CPC分类号： B04B1/20 ,  B04B2001/2033 ,  B04B2001/2041 ,  B04B2001/2058

摘要： The conveyor of a decanter centrifuge includes a small outside diameter central hub extending for at least a portion of the longitudinal length. On the hub is attached a series of longitudinally- and radially-extending shaped ribs, which in turn attach to larger ribs that transverse an open feed zone. The longitudinal and transversing ribs support a ribbon conveyor flight. The open feed zone serves to decrease feed solids degradation. The ribs outside the feed zone serve to improve interface stability and minimize washout. The overall structure of the conveyor is mechanically stiffer and less prone to vibration. The conveyor is lighter and less expensive to construct.

摘要翻译： 沉降式离心机的输送机包括延伸至纵向长度的至少一部分的小外径中心毂。 在轮毂上附有一系列纵向和径向延伸的形状的肋，其又连接到横向开放进料区的更大的肋。 纵向和横向的肋骨支撑带式输送机的飞行。 开放的进料区域用于减少进料固体的降解。 进料区域外的肋条用于提高界面稳定性并最大限度地减少冲洗。 输送机的整体结构机械刚硬，不易振动。 输送机更轻，构造更便宜。

公开(公告)号：US5257968A

公开(公告)日：1993-11-02

申请号：US711479

申请日：1991-06-06

申请人： John W. Caldwell

发明人： John W. Caldwell

IPC分类号： B04B1/20

CPC分类号： B04B1/20 ,  B04B2001/2041 ,  B04B2001/2083

摘要： A decanter centrifuge having an inflatable dam for controlling the pond level. Inflation of an annular bladder adjacent to the liquid discharge opening controls the radial height of the pond surface within the bowl of the centrifuge.

摘要翻译： 具有用于控制池塘水平的充气坝的倾析离心机。 与液体排放口相邻的环形囊的充气控制离心机碗内的池表面的径向高度。

公开(公告)号：US5203762A

公开(公告)日：1993-04-20

申请号：US630655

申请日：1990-12-20

申请人： Joseph L. Cooperstein

发明人： Joseph L. Cooperstein

IPC分类号： B04B1/20 ,  B04B9/10 ,  H02P3/18 ,  H02P5/74

CPC分类号： B04B1/2016 ,  H02P5/74

摘要： A decanter centrifuge includes a control system for receiving input AC power and outputting a variable voltage and frequency for controlling the speed of the backdrive and the main drive motor. The control system includes a first controller for converting AC power into DC power and then converting the DC power to AC power at a variable voltage and frequency to the main drive motor. A second controller is connected to the first conversion unit through a common DC bus. The second controller converts DC power to AC power and supplies AC power at a variable frequency to the backdrive motor. The braking force created by the backdrive motor during operation of the decanter centrifuge creates electricity which is passed through the second controller and through the common DC bus to the first controller. Thus, the generated power from the backdrive motor is converted into power for use by the main drive motor. A regeneration package may also be provided in order to supply the generated power from the backdrive to the AC input line during decelerating the conveyor when the bowl is simultaneously being decelerated and the main drive motor is also generating power.

公开(公告)号：US5453832A

公开(公告)日：1995-09-26

申请号：US920588

申请日：1992-08-24

申请人： John G. Joyce

发明人： John G. Joyce

IPC分类号： B01D21/30 ,  G01N15/00 ,  G01N15/06 ,  G01N21/15 ,  G01N21/53 ,  G01N21/85 ,  G01N21/27 ,  G01N15/04

CPC分类号： G01N21/8507 ,  G01N21/53 ,  G01N2015/0011 ,  G01N2015/0092 ,  G01N2021/152 ,  G01N2021/4709

摘要： In measuring the turbidity of a liquid, especially for determining water clarity in a water purification process in which after the addition of flocculant the water is centrifuged, light is emitted as a diffuse beam from a light source and the intensity of light reflected from gas bubbles in the liquid is detected by a photosensor. The light source and photosensor are incorporated in a probe having transparent cylindrical wall. The probe is sealed within a housing confining a liquid receiving chamber. A plurality of seals are provided forming a space containing a cleaning solution. An actuator is coupled to the probe for reciprocating the probe relative to the housing and seals for cleaning deposits from the wall.

摘要翻译： PCT No.PCT / GB91 / 00354 Sec。 371日期：1992年8月24日 102（e）日期1992年8月24日PCT 1991年3月6日PCT公布。 WO91 / 14171 PCT出版物 日期1991年9月19日。在测量液体的浊度时，特别是用于确定水净化过程中的水透明度，其中在添加絮凝剂之后，将水离心，光从光源发射为漫射束，并且 通过光电传感器检测液体中气泡反射的光的强度。 光源和光电传感器结合在具有透明圆柱形壁的探针中。 探针被密封在限制液体接收室的壳体内。 提供多个密封件，形成包含清洁溶液的空间。 致动器联接到探针上，用于使探头相对于壳体往复运动，并且密封用于从壁上清除沉积物。

公开(公告)号：US5342279A

公开(公告)日：1994-08-30

申请号：US931758

申请日：1992-08-18

申请人： Joseph L. Cooperstein

发明人： Joseph L. Cooperstein

IPC分类号： B04B1/20 ,  B04B9/02 ,  B04B9/10 ,  H02P1/32

CPC分类号： B04B1/2016

摘要： A decanter centrifuge is provided with a dual motor drive for purposes of start-up and efficient operation. The two motors are coupled together during, at least, the start-up of the centrifuge rotation so as to provide the desired power requirements and to reduce the thermal load on the motors. After reaching operational speed, a first motor continues to drive the centrifuge at the desired operational speed and the second motor may be disengaged from operation. The dual motor drive may be varied by use of wye-start and delta-run phase connections for the motors. The operating conditions of the two motors can be varied to provide the necessary power while maximizing efficiency of the operation.

摘要翻译： 沉降式离心机配有双电机驱动器，用于启动和高效运行。 在至少启动离心机旋转期间，两个电动机耦合在一起，以便提供期望的功率要求并减少电动机上的热负荷。 在达到操作速度之后，第一马达继续以期望的操作速度驱动离心机，并且第二马达可以脱离操作。 双马达驱动器可以通过使用电机的起动和三相运行相位连接来改变。 可以改变两个电动机的操作条件以提供必要的功率，同时最大化操作的效率。

公开(公告)号：US5261869A

公开(公告)日：1993-11-16

申请号：US863995

申请日：1992-04-06

申请人： John W. Caldwell ,  Raymond S. Lemmerman

发明人： John W. Caldwell ,  Raymond S. Lemmerman

IPC分类号： B04B1/20 ,  B04B3/04

CPC分类号： B04B1/20 ,  B04B2001/2041 ,  B04B2001/205

摘要： A decanter centrifuge including a discontinuous screw conveyor having flights only within the generally cylindrical portion of the centrifuge bowl. A restricting disc is provided adjacent to the heavy phase material discharge ports such that the restriction contacts the build-up of heavy phase within the portion of the bowl where the flights are discontinuous.