TRICON 9761-210小丸包衣制粒机体系构成如图1所示。小丸包衣制粒机是专门用于试验室或车间小批量出产的。药粉或相似的物料能在流化床中进行单调、制粒以及包衣等进程。流化床物料容器底部装有筛网,药粉或小丸颗粒等相似的物料被盛放在筛网上。活动的空气经过滤处理后经容器底部的筛网向上流过,当流速抵达必定速度时,颗粒(药粉)就会被空气托起,床内粒子就初步流化起来,构成流化床。流化床内的颗粒(药粉)在容器中剧烈搅动,并延伸到容器的拓宽区,纤细的粉末或纤细的颗粒则被粘附在袋式过滤器上。为了避免袋式过滤器的堵塞,操控滤袋升降的气缸会有一个间歇的颤抖操控。空气经过袋式过滤器、操控风量巨细的风门和风道被风机引出室外的大气中。在这个进程中,流化床容器内的微粒能彻底充沛的与空气流触摸,而且搅动剧烈,因而可以极好的完毕充沛单调,出色制粒,精巧包衣等制药进程。
图1 小丸包衣制粒机体系构成
3 体系首要操控恳求
小丸包衣制粒机操作的根柢操控恳求包含五个方面。
TRICON 9761-210 商品温度操控
经过操控进风温度来操控商品温度。进风温度操控精度为±3℃,商品温度操控精度为±2℃。
(2) 进风风量的操控
操控精度为±40m3/h。
(3) 雾化压力的操控
即喷液设备喷发压力的操控,操控精度为±0.1bar。
(4) 密封压力的操控
商品容器有必要与拓宽仓密封,构成一个密闭的流化床反响器。选用油压设备进行密封,密封压力在35-70bar之间。
(5) 滤袋的颤抖操控
颤抖有单滤袋颤抖和双滤袋颤抖,有手动抖袋和主动抖袋。
4.1在满意操控恳求的条件下,操控体系硬件设备的挑选应当寻求最好的功用报价比。因为该机器的运用频率不高,均匀每月一次,一同环境出色,因而选用PC+PLC的操控计划。当机器不必时,PC机可作它用。换句话说,运用共用PC机即可作人机界面。
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