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    • 7. 发明公开
    • Process for the production of propellant powders
    • Verfahren zur Herstellung von Treibladungspulver。
    • EP0178823A1
    • 1986-04-23
    • EP85307074.6
    • 1985-10-03
    • Helle, Charles
    • Helle, Charles
    • C06B21/00
    • C06B21/0016
    • Process for the continuous or semi-continuous fabrication of propellant powders in which raw nitrocellulose is homogenised and stored under water in large tanks, from which it is fed in a controlled manner to a continuous centrifuge which removes water and alcoholises the nitrocellulose gradually. The alcoholised nitrocellulose is fed continuously to a stage where it is mixed with solvents and additives to form a gel which is compacted and extruded into filaments. Granules are made from the filaments and are transported in small batches to a preliminary drying step which removes that larger part of the solvents, in suitable vessels in a programmed manner. The granules discharged from these vessels are collected, in an inert state, and thereafter the powder is prepared and transported hydraulically to subsequent stages, including boiling and final drying.
    • 连续或半连续制造推进剂粉末的方法,其中将原始硝化纤维素均匀化并储存在大型罐中的水中,将其以受控的方式供给到连续离心机中,其逐渐去除水并使硝化纤维素逐渐变细。 将醇化硝化纤维素连续进料到与溶剂和添加剂混合的阶段,以形成压实并挤出成长丝的凝胶。 颗粒由长丝制成,并以小批量运输至初步干燥步骤,其中以规定的方式在合适的容器中除去较大部分的溶剂。 从这些容器排出的颗粒在惰性状态下收集,然后将粉末制备并水力输送到后续阶段,包括沸腾和最终干燥。