大型马蹄焰玻璃熔窑结构对玻璃液流动特性影响的研究  

Research for the Influence of Configuration of End-port Furnace on Flow Pattern

作　　者：杨志强[1] 

机构地区：[1]同济大学材料科学与工程学院,上海200092

出　　处：《玻璃与搪瓷》2009年第2期14-17,共4页Glass & Enamel

摘　　要：从熔窑结构特征上探讨了马蹄焰熔窑的优势和劣势。马蹄焰熔窑的优势是结构紧凑、节能效果明显,劣势是玻璃液熔制工艺和熔制质量有欠缺。借鉴多对小炉横火焰熔窑的高质量玻璃液熔制工艺特点,设置窑坎可以改变马蹄焰熔窑熔化部生产流的流动路径,以此延长了生产流路径,增加了玻璃液在热点高温区的停留时间,提供了玻璃液在窑坎后空间的折转分层流动的优选玻璃液的机制。增设鼓泡可以建立马蹄焰熔窑熔化部的强制对流,改善由于窑坎的分隔使得熔化部环流的弱化和分层,尤其是随着窑坎增高,熔化部玻璃液底层迟滞层厚度增加;鼓泡形成的强制对流重组了整个熔化部的玻璃液流动形态,强化了混合性和传热过程。The superiorities and inferiorities of the end - port furnace on its structural characteristics were discussed. End - port furnace has the superiorities of structural compacteness and energy - saving characteristics. However it has the inferiorities on glass melting quality. Referred to glass - melting features and high - quality of glass making technology in multi port cross - fired furnace, several successful measures could be used to upgrade the glass melting process in end-port furnace, for instance, setting a weir could change the glass stream path so that it would be able to prolong glass residence time at hot spots, and provide more space after the weir for the stream and zigzag the stream to let qualitified molten glass go out of the throat. The wier will separate the melting tank into melting range and refining range. Thus glass molten circulation in melting range will be weakenend and stratified, especially with the high weir. The bottom melt will be sluggish and thick. Setting bubbling can create forced convection, which improves flow pattern and restructures the melt flow patterns. And at the same time, it could strengthen the processes of mixing and heat transfer.

关 键 词：马蹄焰熔窑 窑坎 鼓泡 

分 类 号：TQ171.621[化学工程—玻璃工业]