共查询到17条相似文献,搜索用时 93 毫秒
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近年来喷雾干燥技术研究进展和展望 总被引:2,自引:0,他引:2
喷雾干燥是目前市场上常见的一种干燥方式,喷雾干燥过程的复杂性研究已经有很多成果,喷雾干燥的低热效率给设备研究人员和企业界留下了较大的研发空间,需要不断地去完善其流程和工艺,以满足市场和产品本身的需要。从分析喷雾干燥的研究现状入手,介绍喷雾干燥领域新的研究成果及设备与工艺的发展情况,总结并提出了目前较新的研究课题和方向。 相似文献
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喷雾干燥技术的现状及展望 总被引:7,自引:0,他引:7
回顾了喷雾干燥技术的发展概况,简述了料液雾化机理、雾化器性能及喷雾干燥理论研究和设计方法的进展,并对喷雾干燥技术的今后发展方向提出了若干建议。 相似文献
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研究了影响粉状磷酸一铵喷雾干燥的各种主要因素;建立了喷雾干燥塔工程放大的数学模型,为研究气流式喷雾干燥或实际应用提供了技术基础。 相似文献
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近几年中国开始采用喷雾干燥生产高品位固体聚氯化铝,以适应国际产品的市场要求。笔者对采用压力喷雾干燥和离心喷雾干燥生产固体聚氯化铝进行了比较,通过实例介绍了压力喷雾干燥生产应用情况,并对生产影响因素和改进措施进行了论述。 相似文献
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收尘器滤袋的性能直接影响着喷雾干燥器的运行效果。本文介绍了表面过滤技术在喷雾干燥器烟气处理应用中的优势,并介绍了部份国内外应用的案例。 相似文献
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Spray drying conventionally necessitates relatively large or elongated drying chambers. The present study examined the possibility in shrinking the spray drying chamber into narrow tube-like geometry. The key was in utilizing fine droplets which had low transport response time. A narrow copper/steel tube spray dryer (internal diameters between 12.7 and 48.0 mm) was constructed and was fitted with a two-fluid atomizer producing droplets in the size range smaller than 10 µm. Maltodextrin, lactose, and sucrose were spray-dried. The narrow tube approach allowed direct manipulation of the drying conditions via heating or cooling along the wall of the tube. This form of manipulation in the drying conditions, surprisingly, resulted in very distinctly crystalline spray-dried sucrose particles. The tube spray dryer was further modified with a long coiled-up tube, extending the particle residence time with minimal space requirements. Endoscopic analysis revealed that particle deposition within the tube resembled loosely attached particle and granules. The tube spray drying concept can potentially be used to provide precise control of the particle drying history along the length of the drying chamber, not limited to the control of the drying conditions at the inlet or outlet of a spray dryer. 相似文献
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RECENT PROGRESS OF SPRAY DRYING IN CHINA 总被引:1,自引:0,他引:1
The development of spray drying technique during past 10 years in China is reviewed. Main achievements in research, development and utilization of three types of atomization are described and summarized. General trend of spray drying research and development in 21st century is forecasted. 相似文献
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介绍了喷雾干燥塔在PVC树脂生产中产生黏壁的原因,并从喷雾干燥塔喷嘴的安装,操作风量以及温度等方面提出了改进方法,取得了良好的效果。 相似文献