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    • 3. 发明授权
    • Slurry tray and slurry tray assembly for use in fractionation towers
    • 用于分馏塔的浆料盘和浆料盘组件
    • US06830607B2
    • 2004-12-14
    • US10172228
    • 2002-06-14
    • Jeffrey L. AllenTimothy B. Baker
    • Jeffrey L. AllenTimothy B. Baker
    • B01D1900
    • B01D19/0015B01D3/20B01D3/22C08F6/003C08L27/06
    • A slurry tray and a method for removing residual vinyl chloride monomer from a polyvinylchloride resin slurry with reduced discoloration of the polyvinylchloride resin is provided. The slurry tray preferably includes partitioned channels that cause the slurry to flow at a velocity that maintains solids contained with the slurry in a liquid suspension and weirs contains holes to allow solids trapped at the bottom of the weir to flow continuously downward to a bottom of the plate tower for removal from the tower. The method preferably includes supplying the slurry towards the top of the tower and a vapor towards the bottom of the tower. The slurry descends the tower, while the steam simultaneously ascends the tower, both through directional valves. The solids trapped upon the surface of the trays travel down the tower through the holes within the weirs for removal from the tower.
    • 提供一种浆料托盘和从聚氯乙烯树脂浆料中除去残留氯乙烯单体的方法,同时减少了聚氯乙烯树脂的变色。 浆料托盘优选地包括分隔的通道,其使得浆料以将浆料中所含的固体保持在液体悬浮液中的速度流动,并且堰含有孔,以允许被捕获在堰底部的固体向下流动到底部 塔塔用于从塔中取出。 该方法优选地包括向塔的顶部供应浆料,向塔的底部供应蒸汽。 浆料下降塔,而蒸汽同时上升塔,通过方向阀。 捕获在托盘表面的固体通过堰内的孔从塔底向下移动,以便从塔中取出。