论文部分内容阅读
水泥生产中分解炉内主要化学物理过程是煤粉的燃烧.与煤粉相比,石油焦是一种经济的替代燃料.本文首先通过实验测试出石油焦燃烧的物理化学特性,根据这些特性建立了石油焦在强化悬浮式RSP型分解炉中燃烧的数值模拟模型.该模型结合气固二相流理论,采用快速反应的PDF模型,对分解炉内石油焦的燃烧过程进行了数值模拟,揭示了分解炉内石油焦的燃烧机理.研究结果表明RSP型分解炉的炉型适宜于石油焦的燃烧,并且数值模拟的结果能为石油焦在分解炉内优化燃烧提供了理论依据和有利的信息.
The main chemical and physical process in the decomposition furnace in cement production is the combustion of pulverized coal.Compared with pulverized coal, petroleum coke is an economical alternative fuel.This paper firstly tests the physical and chemical characteristics of petroleum coke combustion experimentally, and based on these characteristics, The numerical simulation model of petroleum coke combustion in an enhanced suspension RSP decomposition furnace was developed.The numerical simulation of the combustion process of petroleum coke in a decomposing furnace was carried out by using the fast reacting PDF model combining the gas-solid two-phase flow theory, The results show that the furnace type of the RSP-type calciner is suitable for the combustion of petroleum coke, and the numerical simulation results provide a theoretical basis and favorable information for optimizing the combustion of petroleum coke in the calciner .