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    • 84. 发明公开
    • Method and apparatus for cooling particulate solids
    • Methode und Vorrichtung zurKühlungvon festen Teilchen。
    • EP0444338A1
    • 1991-09-04
    • EP90302189.7
    • 1990-03-01
    • COMINCO LTD.
    • Mueller, Markus M.
    • B01J2/04F28C3/14
    • F28F3/14B01J2/04B01J8/087B01J8/12B01J2208/0015B01J2208/022C05G3/0058F28D2021/0045
    • The apparatus for cooling solid particulates comprises a housing containing a multiplicity of parallel, spaced, vertical heat exchanger plates (3) having passages therebetween. Each plate (3) has continuous flow channels for cooling fluid therein. A fluid inlet (22) and outlet (23) are attached to the flow channels in each plate and common fluid inlet (24) and outlet headers 26 are attached to the inlets (25) and outlets, (27) respectively. A feed hopper for feeding particulates to the passages is positioned above and attached to the housing. A discharge hopper for receiving cooled particulates from the passages is positioned below and attached to the housing. The discharge hopper contains two adjacent parallel bins each having a swinging section operatively connected to an actuator activated by a level control means positioned in the feed hopper. Particulates such as fertilizer particulates, are fed into the feed hopper and pass downward in a mass flow regime between the heat exchanger plates where they are cooled with a fluid, preferably water, that passes through the plates. Cooled particulates collect in the discharge hopper from which they are discharged at a rate controlled by the actuator and level controller so that the plates are maintained in a flooded state with respect to the particulates. Attrition and abrasion of the particulates are substantially eliminated.
    • 用于冷却固体颗粒的装置包括容纳多个平行,间隔开的垂直热交换器板(3)的壳体,所述热交换器板(3)之间具有通道。 每个板(3)具有用于在其中冷却流体的连续流动通道。 流体入口(22)和出口(23)连接到每个板中的流动通道,并且公共流体入口(24)和出口集管26分别连接到入口(25)和出口(27)。 用于将微粒供给到通道的进料斗位于壳体上方并附着到壳体上。 用于从通道接收冷却的颗粒的排出料斗位于壳体的下方并附接到壳体。 排放料斗包含两个相邻的平行箱,每个平行箱具有可操作地连接到由位于进料斗中的液位控制装置致动的致动器的摆动部分。 诸如肥料颗粒的颗粒被送入进料斗并且在热交换器板之间的质量流动状态下向下传送,在那里它们被通过板的流体(优选水)冷却。 冷却的颗粒以排出料斗收集在排出料斗中,该排出料斗以致动器和液位控制器控制的速率排出,使得板相对于颗粒保持在淹水状态。 基本上消除了颗粒的磨损和磨损。