- 學位論文
自動化結晶系統之設計與開發
Design and Development of an Automated Crystallization System
摘要
結晶法為化工產業常用的純化量產製程，工廠內的製程指標往往是以人眼視覺進行判斷，判斷標準因人而異。且目前在臺灣已經漸漸出現技術傳承上的斷層，因此工業結晶產業面臨轉型。本研究基於恆溫結晶法與工業結晶製程，開發出一套非侵入式自動化味精結晶系統。透過影像特徵將視覺判斷進行量化，並利用結晶罐外部架設的影像感測器與超音波感測器，針對結晶過程中的過飽和度、晶體、系統狀態進行分析與判斷。論文內容包含 : 系統設計、控制與晶體辨識程式、系統測試與結晶實驗。系統可自動化完成結晶，在適當的參數下產出的晶體之平均晶體長度可以達到8.25±1.59毫米，且晶體表面無雜質堆積。利用此系統對結晶過程中的過飽和度進行控制，在不同情況下皆可有效地將過飽和度變化控制在一定區間內。對此系統之晶體辨識與平均晶體尺寸計算功能進行測試，可在非侵入式的前提下對平均晶體尺寸進行量測，且在特定條件下量測誤差可控制在一定範圍，並能利用此系統即時監測晶體的溶解狀況，可證明此系統之量測具有一定的正確性。
並列摘要
The crystallization method is a purification mass production process commonly used in the chemical industry. The process indicators in the factory are often judged by experiential technicians through human vision, and the judgment standards depend on individual experience. Moreover, a gap in inheriting the experience is gradually increasing in Taiwan , thus the crystallization industry is facing automation. Based on the constant temperature crystallization method and industrial crystallization process, this research developed a non-intrusive automatic crystallization system. In this system, the visual judgment was quantified through optical image characteristics, the real-time iamge sensor and ultrasonic sensor are used to analysis the supersaturation, crystal, and system status during the crystallization process. Through a feedback control method, the degree of supersaturation during the crystallization process can be controlled within a certain level, and the automatic crystallization process of monosodium glutamate can be performed by the proposed system. The average crystal length under appropriate parameters was 8.25±1.59 mm, and no accumulation of impurities on the crystal surface was observed. Furthermore, the crystal identification and average crystal size calculation functions provided non-invasive measurement of average crystal size, which can be used in real-time monitoring of the dissolution status of the crystal.
參考文獻
延伸閱讀
- Wang, H. Y. (2017). 結晶程序之設計、控制、最適化與經濟分析 [doctoral dissertation, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU201701931
- Lin, Y. S. (2004). 晶圓廠智慧型排程系統之發展 [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2004.10319
- 林志聰（2004）。應用先進規劃排程模擬模式於晶圓廠生產系統之改善〔碩士論文，元智大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0009-0112200611322174
- 丁挺洲（2012）。實驗室晶片之整合設計、製作、操控與測試〔博士論文，國立中央大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0031-1903201314452252
- 梁廣恒（1997）。Study on the competivity between crystallization and liquid-liquid〔碩士論文，元智大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0009-0112200611345300