頁籤選單縮合
題名 | 模組式逆流燃燒爐之設計與製作及其性能分析=Design and Manufacturing of a Counter-Flow Module-Type Furnaceand Performance Analysis for Rice Hulls |
---|---|
作者 | 王岱淇; | 書刊名 | 四海學報 |
卷期 | 10 1996.01[民85.01] |
頁次 | 頁166-190 |
分類號 | 446.329 |
關鍵詞 | 稻殼; 燃燒爐; 逆流式; 模組式; Rice hulls; Furnace; Counterflow combustion; Module-type; |
語文 | 中文(Chinese) |
中文摘要 | 稻殼在傳統固定爐床式燃燒爐中,燃燒情形(排灰不易、粉塵嚴重、燃燒緩慢等)一直不是很理想,近來有採用旋風式燃燒爐及灰化爐處理,但空氣及粉塵汙染仍是燃燒處理時所必須克服的問題。若在燃燒的控制上加以改善,便能達到環保標準,不但在爐體的經濟規模上能減少,在建造及操作上,更能減少空氣汙染防治設備的成本。 基於此前提,本研究在進行模組式逆流燃燒爐的設計製作,並針對稻殼在逆流式燃燒爐的燃燒性能測定。模組式製作可使燃燒爐的製作工廠化,降低生產成本。而逆流式燃燒與傳統順流式燃燒最大的不同,在於燃料中的空氣流向,為由上往下,經重力落下的燃料,熱解逸出的揮發性氣體,可流經下層的高溫燃燒層,在適當的空氣補充下,此揮發性氣體可在高溫下充分反應,將可減少有害氣體的產生,而且逆流燃燒的低空氣流速,更適合稻殼的燜燒模式進行。本文所設計之爐體,將可解決稻殼無法完全燃燒及燃燒緩慢的特殊缺點。 |
英文摘要 | Rice hulls usually can not be burned smoothly in the traditional fixed-bed incinerator as a result of difficulties on ash discharging, dust collecting and slow rate of burning during the process. Recently, the vortex-type furnace burner was used instead to burn rice hulls, but the air and dust polution problems still leave unsolved. To meet the criteria of environmental regulations, suitable controls and devices of the biomass incinerator need further improved so that both the construction and operation costs can be chopped down to a lower level. Based on the above conditions, this study was focused on the design and maufacturing of a counter-flow module-type furnace for rice hulls, Performance tests on this pilot plant were also underway. Module-type furnace produced in the factory can reduce the cost of product. The main merit of the conterfiow furnace, in comparison with the traditional one, is that the air, sucked by a centrifugal fan, flows downward in the column of the rice hulls which are also moving slowly downward by weight. The air then enters the layer of pyrolysis where the gases are generated and mixed with the incoming air. Both air and gases go into the combustion layer, with suitable supplemental ambient air, the combustion continue in a well-conditioned manner. The volatile gases can stay longer for further reactions in this layer, with less harmful gases generated in the exhaust air. By characterizing a low air-flow rate during the process, the counter-flow model will be more suitable for the rice hulls burning. A proper design according to the model priciple will practically solve the problems. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。