蓄熱式節能燒結爐開發管理及應用

Development management Study in Energy Saving Sintering Furnace Using Heat Regenerative Combustion System

蘇志強(Chih-Chang Su) ； 陳建成(Chien-Cheng Chen) ； 唐紹文(Marx Tang) ； 徐愷呈(Kai-Cheng Hsu) ； 溫智升(Chih-Sheng Wen) ； 楊敏郎(Min-Lang Yang)

《燃燒季刊》 104期 (2019/02) Pp. 67-75

https://doi.org/10.30041/CQ.201902_(104).0005

摘要

殻模燒結是除了金屬熔煉以外精密鑄造產業中最高溫的關鍵製程，其燒結成果直接影響澆鑄製程成敗及可能衍生的後續精密加工需求。國內精密鑄造產業進行殻模燒結溫度約介於1000－1200℃，廢煙氣溫度高達800－1000℃，為節省能源成本，廢熱回收節能技術是近年來精密鑄造業者採購新爐考量重點。本研究將蓄熱式燃燒系統導入國內一家精密鑄造殼模燒結爐，透過爐體能耗需求設計與流體力學工程分析確認爐體內部流場與均溫性目標，並完成設備開發。研究透過國際IPMPV能耗驗證規範分析新舊爐體實際投產能耗測試，確認蓄熱式燃燒技術應用於精密鑄造業殼模燒結爐的效益。實測結果顯示，透過頂置式蓄熱式燃燒器設計與爐內蓄熱式燃燒器控制策略應用，可大幅減少能耗達30%以上，是國內直火式殼模燒結設備節能減排最佳選擇。

關鍵字

蓄熱式燃燒 ； 殼模燒結爐 ； 節能

並列摘要

Shell mold sintering is the most high-temperature key process in the precision casting industry in addition to metal smelting. The process of sintering results directly affect the successfulness of the casting process and the subsequent precision machining requirements that may be derived. In the domestic precision casting industry, the shell mold sintering temperature was about 1050-1200 °C, and the waste flue gas temperature could be as high as 800-900 °C. In order to save energy costs, the waste heat recovery energy-saving technology is the focus of the precision casting industry to purchase new furnaces in recent years. In this study, the regenerative combustion system was introduced into a precision casting shell mold sintering furnace in Taiwan. Through the energy demand design and fluid dynamics engineering analysis of the furnace body, the internal flow field and temperature uniformity target of the furnace body were confirmed, and equipment development was completed. The study analyzed the actual energy production test of new and old furnaces through the International performance measurement and verification, IPMPV, and confirms the benefits of regenerative combustion technology applied to the shell mold sintering furnace in the precision casting industry. The measured results show that through the design of the overhead regenerative burner and the application of the regenerative burner control strategy in the furnace, the energy consumption can be reduced by more than 30%, which is the best choice for energy-saving and emission reduction of domestic direct-fired heat treatment equipment.

並列關鍵字

Heat regenerative combustion ； Shell mold sintering ； Energy Saving