内热式搪玻璃反应罐电加热炉

Internal Electric Heater for Glass Lining Reaction Vessels

目前,国内搪玻璃反应罐烧成炉有两种型式。一种是传统的室式隔焰炉(马弗炉),这类炉窑的热效率低、炉温波动大、温度均匀性差;另一种是钟罩式电炉,其造价高、结构复杂、耗电量大。 为改变国内反应罐烧成工艺的落后面貌,构思设计了内热式的电加热炉。 众所周知,搪玻璃反应罐内腔的搪玻璃层要加热到900℃左右方能烧成。而传统的隔焰加热炉其火焰所具热量必须经马弗壁以辐射的方式才能传递至反应罐外壁,再传导到内壁。热辐射效率与距离的平方成反比,从马弗壁到制品的距离相对较大,以至热辐射效率相应成倍减小。而钟罩式电加热炉发热元件发出的热量相当一部分被炉壁吸收,另一部分也须先辐射到反应罐外壁才能传到内壁。所以,两种炉型总的热效率都较低。

This paper introduced the design and application of a kind of internal heater for glass lining reaction vessels.The traditional external firing process was replaced by internal firing process for glass lining reaction vessels and hanging firing method and the slow rotation of vessel itself to bring out heat uniformity were adopted.Therefore reducing power consumption and improvement of firing quality were achieved and this equipment was.necessitated for fast firing process.