带内翅片管回转脱硫石膏煅烧机的研究

脱硫石膏的煅烧工艺直接决定其产品的质量。本文对脱硫石膏的产生过程和特性进行了叙述,对常用煅烧工艺的优缺点进行了分析,选择带内翅片管回转脱硫石膏煅烧工艺进行研究。对该煅烧机的结构组成及工作流程进行了分析,结果表明该工艺有以下优点:避免了脱硫石膏煅烧过程中杂质的混入;内翅片管可在筒体出料端实现自由伸缩,可保护筒体不受热胀冷缩而变形;内翅片管使气流由层流变成紊流且增加了换热面积,提高了换热效果。总之,带内翅片管回转脱硫石膏煅烧工艺是一种性能好的煅烧工艺,可以应用于工业现场,并具有广泛的发展前景。

Research on the Desulfurization Gypsum of the Rotary Kiln with the Finned Tube

The calcination technology of the desulfurization gypsum decides the product quality directly. The production process and property of the desulfurization gypsum has been described and the merits and faults of the conventional calcination technologies have been analyzed. The calcination technology of the desulfurization gypsum of the rotary kiln with the finned tube was chose for the research. The structure and workflow of the calcinatory has been analyzed, and the results showed the advantages of this technology were as follows： the interfusion of the impurity in the calcination process has been avoided, the cylindrical shell would not be distored when the expand with heat and contract with cold happened because the finned tube could extend allodiality in the discharge end of the cylindrical shell, the heat exchange efficiency was high because the flowage of the airflow changed from the laminar flow into the turbulent flow and the heat exchange area increased by using the finned tube. After all, the property of the calcination technology of the desulfurization gypsum of the rotary kiln with the finned tube is good, and it can be applied in the industrial field and has a wide development prospect.