左斌+孙辉+胡鹏程



摘 要 目的:研究胆宁片潮浸膏使用真空带式干燥机在不同干燥温度参数下干燥产出的浸膏粉粉体学性质差异,确定最佳温度参数值,解决制粒塌床等非正常现象。方法:以真空烘箱生产的胆宁片浸膏粉的粉体学参数作为评价指标,优选干燥温度参数,并跟踪各温度方案下的后期制粒过程。结果:胆宁片潮浸膏使用真空带式干燥机进行干燥的最佳温度参数为1区130 ℃,2区120 ℃,3区115 ℃,制粒无塌床现象发生。结论:本研究结果解决了原工艺在后期制粒过程中出现塌床的非正常现象,可用于指导生产。
关键词 胆宁片浸膏粉 干燥 真空带式干燥机 粉体学
中图分类号:TQ461 文献标识码:A 文章编号:1006-1533(2017)15-0079-04
Study on powder science research of Danning tablet extract dried by vacuum belt drying under the different parameters of temperature
ZUO Bin*, SUN Hui, HU Pengcheng
(Shanghai Hutchison Pharmaceuticals Co., Ltd., Shanghai, 201401, China)
ABSTRACT Objective: To study the differences of powder properties of Danning tablet extract made by vacuum belt drying machine at different temperatures and determine the optimum temperature and solve the problem such as bed collapse and other unusual phenomenon. Methods: The temperatures for the drying of Danning table extract powder were optimized by taking its powder science parameters as evaluation indexes and meanwhile the granulation process was also supervised. Results: The optimum temperatures for drying Danning table extract by vacuum belt drying machine were 130 ℃ at the first zone, 120 ℃ at the second zone and 115 ℃ at the third zone, respectively, and the unusual phenomenon such as bed collapse in the granulation process no longer occurred. Conclusion: The problems such as bed collapse and other unusual phenomenon are resolved by our study and these parameter of temperature may be applied in the production of Danning tablets.
KEY WORDS Danning tablet extract powder; drying process; vacuum belt drying machine; powder science
膽宁片为我公司主要产品之一,由大黄、虎杖、青皮、白茅根、陈皮、郁金、山楂等七味药材组成,具有疏肝利胆、清热通下之功效,用于肝郁气滞、湿热未清所致的右上腹隐隐作痛、食入作胀、胃纳不香、嗳气、便秘;慢性胆囊炎见上述证候者[1]。
胆宁片生产工艺主要包括:提取、浓缩、干燥、粉碎、混匀、制粒、压片、包衣等。针对其中减压干燥工艺,我公司原使用真空烘箱对胆宁片潮浸膏进行干燥,但传统真空烘箱干燥时间长、单位时间产出的干浸膏量少、干燥效率低[2],故新厂采用真空带式干燥(简称带干)机进行胆宁片潮浸膏的干燥[3-4],虽然干燥效率有了明显提高,但粉料用于后期制粒生产时,经常出现制粒塌床等非正常现象[5],造成了时间和成本的浪费。经过调查,分析其原因是由于浸膏受热时间明显缩短,导致浸膏内糖类物质受热不足,粉料黏性增大,纳水量增大,即胆宁片浸膏粉粉体学性质发生改变可能是造成制粒塌床的关键因素,故考虑优化干燥温度参数来改善物料性质[6]。……