摘要
以CFD(computational fluid dynamics)为计算平台,利用所开发的物理和数学模型,对罐式煅烧炉大型化进行仿真与优化计算,同时对各火道挥发分分配比例进行了计算,并得出结论:无论是从火道内负压分布、温度分布、生产操作方面,还是从投资建设方面,同样增加炉体总高度的情况下,8层火道(间距适当增加)的火道布局方式比10层火道更适用于大型化罐式煅烧炉。挥发分分配比例,不仅影响罐式炉产量,更影响煅后焦质量。要适当降低二层挥发分比例,不应超过30%,首层和二层挥发分比例之和不应超过70%。
Taking CFD（eomputational fluid dynamics） as computational platform, and using the developed physics and mathematics models, the large-scale shaft kiln was simulated and optimized. The models for different proportion of volatile matters （VCM） in flue were simulated, and some conclusions were obtained as following： in the case of increasing the same highness of the furnace, 8 flues shaft kiln is more reasonable than 10 flues,considering not only the pressure distribution, temperature distribution and operation, but also investment. The distributive proportion of VCM has a great effect on the productivity and quality of the calcined coke. The proportion of VCM of the second floor should decrease properly, and should not exceed 30%. And the sum of distributive proportion of VCM of the first and second floor shoulA not overpass 70%.
出处
《炭素技术》
CAS
北大核心
2014年第2期52-54,共3页
Carbon Techniques
关键词
罐式煅烧炉
数值模拟
优化
挥发分
Shaft kiln
numerical simulation
optimization
volatile matters
