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    • 61. 发明申请
    • PROCESS FOR PRODUCING FLUIDISED-BED SPRAY GRANULATES AND SPRAY-DRYING PRODUCTS
    • 用于生产流化床喷雾颗粒和喷雾干燥产品
    • WO1995006519A1
    • 1995-03-09
    • PCT/EP1994002175
    • 1994-07-02
    • DEGUSSA AKTIENGESELLSCHAFTHESSBERGER, WaldemarLOOK-HERBER, PetraBEWERSDORF, MartinBERTSCH-FRANK, BirgitLIESER, ThomasKLASEN, Claas-JürgenMÜLLER, Klaus
    • DEGUSSA AKTIENGESELLSCHAFT
    • B01J02/16
    • B05B7/10B05B7/061
    • The invention relates to a process for producing fluidised-bed spray granulates and spray-drying products using a tripropellant spray nozzle in which two liquids containing a mutually reactive component is sprayed by means of a propellant gas and caused to react and solvent is evaporated while avoiding blockages and incrustations in/on the nozzle from contents and/or reaction products. According to the invention, blockages and incrustations can be prevented by the use of a tripropellant nozzle, the nose (2) of which has a central pipe (10) and two jacket pipes (11 and 12) fitted coaxially around it, in which the central pipe and the annular gap (13) formed between it and the inner jacket pipe (11) communicate with a liquid channel (7 or 6) each and the outer annular gap (14) formed between the jacket pipes communicates with the propellant channel (8) of the nozzle body (1), while the jacket pipes extend over the same length to the tip of the nozzle or preferably the central pipe extends beyond the ends of the jacket pipes.
    • 本发明涉及一种用于生产使用Dreistoffzerstäuberdüse流化床喷雾颗粒和喷雾干燥产品的方法,其特征在于两种流体,其中每个包含使用推进剂气体喷射并达到反应和溶剂的相互反应的成分,而不会造成任何蒸发 堵塞和结垢进来/由成分和/或反应产物的喷嘴。 根据本发明,可以通过使用三组分喷嘴避免堵塞和结垢,所述喷嘴口(2)包括中心管(10)和两个大约同轴布置的外套管(11和12),其中所述中心管和所述(在此与内套管11之间 )环形形成(13间隙)是在与一个流体通道(7,6)和所述套管(14)之间形成的气体推进剂导管的外环形间隙(8)的喷嘴主体(1)和中心管中,在喷嘴尖部的外套管的 结束在相同的高度或,优选地,延伸中心管超出护套管的端部。