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    Flocculation control system and method
    1.
    发明授权
    Flocculation control system and method 失效
    絮凝控制系统及方法

    公开(公告)号：US5376280A

    公开(公告)日：1994-12-27

    申请号：US143495

    申请日：1993-10-25

    申请人： James H. Wilhelm ,  C. J. H. Brest Vankempen ,  Ralph A. Cutler ,  Vincent E. Hamilton

    发明人： James H. Wilhelm ,  C. J. H. Brest Vankempen ,  Ralph A. Cutler ,  Vincent E. Hamilton

    IPC分类号： B01D21/00 ,  B01D21/30 ,  C02F1/52 ,  G01N33/18 ,  G05D21/02 ,  C02F1/56

    CPC分类号： G05D21/02 ,  B01D21/01 ,  B01D21/305 ,  B01D21/34 ,  C02F1/5209 ,  G01N33/343 ,  G01N33/1886

    摘要： A flocculation control system for controlling a feed rate of a flocculant into an aqueous slurry comprises an elongate settling tube having an open lower end for placing into the slurry. An air eductor creates a subatmospheric pressure within the settling tube to thereby draw a sample of the slurry therein to a predetermined location above the slurry level. A control valve hermetically seals an upper end of the settling tube to maintain the subatmospheric pressure therein such that the sample is retained in a quiescent state and in fluid communication with the slurry body. A pressure sensor senses the subatmospheric pressure within the settling tube, and measurements thereof are taken at selectable intervals to develop an initial measurement of said pressure and intermediate lower magnitude measurements of said pressure resulting from the settling of particles from the sample. The pressure measurements enable calculation of the weight concentration and settling velocity of said suspended particulates. A desired settling velocity for optimizing flocculant feed rate can be determined from the weight concentration of the suspended particles. The feed rate of the flocculant is increased if the measured settling velocity is lower than a desired rate and decreased if the measured settling velocity is higher than a desired rate.

    摘要翻译： 用于控制絮凝剂进入含水浆料的进料速率的絮凝控制系统包括具有用于放入浆料中的开口下端的细长沉降管。 空气喷射器在沉降管内产生低于大气压的压力，从而将其中的浆料样品抽出到浆料水平以上的预定位置。 控制阀气密地密封沉降管的上端，以保持其中的低于大气压，使得样品保持在静止状态并与浆料体流体连通。 压力传感器感测沉降管内的低于大气压的压力，并且以可选择的间隔进行测量，以开发由来自样品的颗粒沉降产生的所述压力和所述压力的中间较低量值测量的初始测量。 压力测量可以计算所述悬浮颗粒的重量浓度和沉降速度。 用于优化絮凝剂进料速率的期望的沉降速度可以从悬浮颗粒的重量浓度确定。 如果测量的沉降速度低于所需速率，则絮凝剂的进料速率增加，如果测量的沉降速度高于所需速率，则絮凝剂的进料速率降低。

    Method of cleaning printhead in inkjet printer
    2.
    发明授权
    Method of cleaning printhead in inkjet printer 失效
    在喷墨打印机中清洁打印头的方法

    公开(公告)号：US06786975B1

    公开(公告)日：2004-09-07

    申请号：US10383293

    申请日：2003-03-07

    申请人： Michael Long ,  Gregory J. Garbacz ,  Vincent E. Hamilton-Winbush

    发明人： Michael Long ,  Gregory J. Garbacz ,  Vincent E. Hamilton-Winbush

    IPC分类号： B08B700

    CPC分类号： B41J2/1707 ,  B41J2/16552 ,  B41J2/1714 ,  B41J2/185

    摘要： A method of cleaning a printhead in an inkjet printer by removing organic debris deposits from the printhead, uses anyone of the liquid mixes of NaOCl (sodium hypochlorite) and H2O (water), H2O2 (hydrogen peroxide) and H2O, Na2S2O4 (sodium hydrosulfite) and H2O, CaCl2O2 (calcium hypochlorite) and H2O, or KMnO4 (potassium pernanganate) and H2O on the debris deposits, to serve as a cleaning agent.

    摘要翻译： 通过从打印头去除有机碎屑沉积物来清洁喷墨打印机中的打印头的方法，使用NaOCl（次氯酸钠）和H 2 O（水），H 2 O 2（过氧化氢）和H 2 O，Na 2 S 2 O 4（连二亚硫酸钠） 和H2O，CaCl2O2（次氯酸钙）和H2O，或KMnO4（过锰酸钾）和H2O在碎屑沉积物上，作为清洁剂。