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    • 3. 发明申请
    • APPARATUS AND METHOD FOR SEPARATING SOLID PARTICLES FROM A SLURRY
    • 从浆料中分离固体颗粒的装置和方法
    • WO2012093937A1
    • 2012-07-12
    • PCT/NL2012/050002
    • 2012-01-03
    • NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNOVERDOES, DirkVAN DER MEER, JohannesNIENOORD, MichielSELL, MichaelCOLLARD, Jean-Marie
    • VERDOES, DirkVAN DER MEER, JohannesNIENOORD, MichielSELL, MichaelCOLLARD, Jean-Marie
    • B01D9/00
    • B01D9/00B01D9/0045B01D9/005
    • The invention is directed to an improvement in operation of wash columns, and more in particular to an apparatus for separating solid particles from a slurry and to a process for separating solid particles from a mother liquor slurry. The apparatus of the invention comprises a wash column (1), which comprises a melting circuit (8,10,11,21), wherein means (22,23) are present to introduce a compound or composition to said wash column between a wash front (6b) formed in said wash column in operation and a product outlet and/or in the melting circuit. The process of the invention comprises separating the liquid from the solid particles by filtration with the aid of at least one filtering element (4), while a packed bed of solid particles coming from the mother liquid slurry forms near said filtering element (4), and wherein a wash front (6b) forms which is obtained by bringing a washing liquid in counter current to the solid particles in the bed, the bed being subjected to a movement in the direction of said wash front (6b), while a product stream comprising the material of said solid particles is obtained by continuously discharging a portion of said washing liquid, wherein a portion of said bed is continuously disintegrated, characterized in that a compound or composition is introduced into said wash column (1) between the wash front (6b) and a product outlet and/or in a melting circuit (8,10,11,21), and wherein the introduction of the said compound or composition decreases the equilibrium temperature of the contents of the melting circuit (8,10,11,21), further characterized by the feature that the introduced compound or composition is completely miscible with the product suspension and/or molten product being present in the said melting circuit (8,10,11,21).
    • 本发明涉及洗涤塔的操作的改进,更具体地涉及用于从浆料中分离固体颗粒的装置以及从母液浆液中分离固体颗粒的方法。 本发明的装置包括洗涤塔(1),其包括熔化回路(8,10,11,21),其中存在用于将化合物或组合物引入所述洗涤塔的洗涤剂(22,23) 在操作中在所述洗涤塔中形成的前部(6b)和产品出口和/或在熔解回路中。 本发明的方法包括借助于至少一个过滤元件(4)过滤分离液体与固体颗粒,同时来自母液浆料的固体颗粒的填充床形成在所述过滤元件(4)附近, 并且其中形成洗涤前部(6b),其通过使洗涤液与所述床中的固体颗粒相反地使洗涤液沿所述洗涤前部(6b)的方向移动,同时产物流 包括所述固体颗粒的材料是通过连续排出所述洗涤液的一部分获得的,其中所述床的一部分被连续分解,其特征在于将化合物或组合物引入所述洗涤塔(1) 6b)和产品出口和/或在熔解回路(8,10,11,21)中,并且其中所述化合物或组合物的引入降低了熔融物的内容物的平衡温度 g电路(8,10,11,21),其特征还在于引入的化合物或组合物与存在于所述熔解回路中的产物悬浮液和/或熔融产物完全混溶的特征(8,10,11,21 )。