富氧燃烧技术与新型干法水泥生产技术的耦合性研究

Feasibility of oxy-fuel technology for NSP cement production process

通过数学建模和理论分析,对富氧燃烧技术与新型干法水泥生产技术进行耦合性研究,结果表明,当煤粉燃烧气氛中O2体积分数为21％～30％,系统漏风系数为1％ ～ 10％时,烟气中CO2体积分数可提高到50％ ～ 83.29％;烟气排放量降低43.70％ ～59.72％;当O2体积分数为30％时,系统风量降低了28.47％ ～32.65％;煤粉消耗量降低13.94％ ～ 17.04％;富氧燃烧技术在水泥生产过程中的应用可以有效降低水泥熟料的单位能耗,提高设备的生产能力,降低水泥工业烟气中CO2的捕集成本,具有很高的市场推广前景.

Mathematic model and theoretical study are both used for analysis on the feasibility of oxy-fuel technology for new suspended preheating cement production process.The result shows that the concentration of CO2 in the exhaust gas can reach 50％-83.29％,while the concentration of offered O2 is 21％-30％ and leakage coefficient is 1％-10％.The total amount of exhaust gas is decreased by 43.70％-59.72％.When the concentration of offered O2 is 30％,the amount of air is decreased by 28.47％-32.65％ in the system.The coal consumption is decreased by 13.94％-17.04％.It indicates that oxy-fuel technology for cement production can tremendously reduce energy consumption,improve equipment productivity and decrease the cost of CO2 capture.It is proved that the oxy-fuel technology has a high marketing prospect in the cement production.