罐式炉煅烧石油焦及余热利用过程的协同性分析

Synergy analysis of petroleum coke calcination and waste heat utilization process on vertical shaft kiln

罐式炉煅烧石油焦过程复杂、能耗较高,物质流、能量流交叉耦合运行。通过建立物质流、能量流协同运行的数学、物理模型,可有效分析系统用能过程,对其用能的不合理性进行优化。通过模拟实例研究,分析罐式炉煅烧石油焦及余热利用过程的用能特点和存在问题,进而提出一种优化新工艺,改进了子系统有序度和全系统协同度,夏季发电量达到12.85 MW·h,冬季产汽达到59.77 t/h,原系统夏、冬两季的协同度分别提高至0.744和0.696。并为炭素厂未来节能降耗发展指明方向和夯实理论基础。

The process of calcining petroleum coke via vertical shaft kiln is complex and requires high energy consumption,with cross coupling operation of material flow and energy flow.By establishing mathematical and physical models for the coordinated operation of material flow and energy flow,the energy consumption process of the system can be effectively analyzed and the irrationality of its energy consumption can be optimized.Through simulation case studies,this paper analyzes the energy consumption characteristics and existing problems of the petroleum coke calcination and waste heat utilization process on vertical shaft kiln,and proposes an optimized new process that improves the ordering degree of subsystems and the coordination degree of the entire system.The summer power generation reaches 12.85 MW·h,winter steam production is 59.77 t/h,and the synergy degrees of the original system in summer and winter are increased to 0.744 and 0.696,respectively.It also points out the direction and consolidates the theoretical foundation for the future energy conservation and consumption reduction development of carbon plants.