Slurry processing unit
    1.
    发明授权
    Slurry processing unit 失效
    泥浆处理单元

    公开(公告)号:US5269635A

    公开(公告)日:1993-12-14

    申请号:US869019

    申请日:1992-04-15

    CPC classification number: B65G53/30 B65G53/66

    Abstract: By utilizing two inlet pumps and one discharge pump, and controlling the speed of the discharge pump, the pressure in a slurry processing unit can be controlled to facilitate measurement and handling of compressible slurry. It has been found that multiple specific gravity measurements with water injection between the measuring stations can provide an accurate indicate of clear water to be added, even though the slurry is compressible and of varying composition, by allowing controlled undershooting of the required water at one or more injection stations, followed by accurate specific gravity measurement under closely controlled pressure and flow rate conditions, followed by a small final clear water addition. Flow from an inlet clear water pump is distributed through at least two clear water injection pipes, including a first clear water injection pipe connected to slurry piping between the first and the second specific gravity sensors and a second injection pipe connected to the slurry piping between second and third specific gravity sensors. A controller receives analog signals from the specific gravity sensors and from the flow sensors and sends throttle signals to the clear water throttle valves and a speed control signal to the variable speed discharge pump.

    Abstract translation: 通过利用两个入口泵和一个排放泵,并且控制排出泵的速度,可以控制浆料处理单元中的压力,以便于可压缩浆料的测量和处理。 已经发现,在测量站之间用注水进行的多重比重测量可以提供要添加的清水的精确指示,即使浆料是可压缩的并且具有不同的组成,通过允许在一个或另一个 更多的喷射站,紧接着受到压力和流量条件的限制,然后进行精确的比重测量,然后加入少量最终的清水。 来自入口清水泵的流量分布在至少两个透明的水注入管道中,包括与第一和第二比重传感器之间的浆料管道连接的第一透明水注入管道和连接到第二和第二比重传感器之间的浆料管道的第二注入管道 和第三比重传感器。 控制器接收来自比重传感器和流量传感器的模拟信号,并将节气门信号发送到清水节流阀和向变速排放泵的速度控制信号。

    Make-up water re-circulation in slurry processing unit
    2.
    发明授权
    Make-up water re-circulation in slurry processing unit 失效
    浆料加工装置中补充水再循环

    公开(公告)号:US06860989B2

    公开(公告)日:2005-03-01

    申请号:US09885767

    申请日:2001-06-20

    CPC classification number: B09C1/00 B09B3/00

    Abstract: Make-up water derived from an on-shore treatment facility is returned to a slurry processing unit on board a dredge by means of a water supply pipeline floating alongside a slurry delivery pipeline that conveys dredged material to the on-shore treatment facility. After separation from the slurry solids, the return water is pressurized to a transport pressure at the treatment facility with a centrifugal pump and then boosted to the desired working pressure once aboard the dredge. This two-stage pumping and re-cycling process reduces the amount of clear make-up water needed for proper operation of the slurry processing unit by more than 50%. This has resulted in a substantial reduction in the overall cost of remediation by reducing the amount of water that must be cleaned prior to disposal.

    Abstract translation: 来自岸上处理设备的补给水通过沿着将疏浚物料输送到岸上处理设施的泥浆输送管线浮动的供水管道返回到疏浚船上的浆料处理单元。 在与浆料固体分离后,用离心泵将返回水加压到处理设备处的输送压力,然后在挖泥船上一次升压至所需的工作压力。 这种两级泵送和再循环过程将浆料处理单元的正常操作所需的清除补充水量减少了50%以上。 这导致通过减少在处理之前必须清洁的水量来大大减少整治费用。

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