阅读说明：本技术 由在线型分解炉改造的可调节co2富集量水泥窑系统及其使用方法 (Cement kiln system capable of adjusting CO2 enrichment amount and improved by online decomposing furnace and using method thereof ) 是由 何小龙 胡芝娟 彭学平 代中元 陈昌华 于 2019-08-12 设计创作，主要内容包括：本发明涉及由在线型分解炉改造的可调节CO-2富集量水泥窑系统及方法。通过本发明部件的调节功能,可以使系统切换为CO-2自富集型预分解窑或常规在线型预分解窑。本发明可根据CO-2的需求量调节系统的部件,进而灵活调节水泥窑系统CO-2富集量。而且,本发明的水泥窑系统无需对关键烧成设备进行重新设计,即可进行CO-2富集,降低改造成本。此外,当本发明系统作为CO-2自富集型预分解窑时,第三列旋风预热器出口烟气中CO-2浓度＞70％,可大大降低后续CO-2捕集提纯和运行成本,且高CO-2浓度的烟气量可灵活调整为常规预分解窑系统预热器出口烟气量的5～30％,大大降低了预分解窑系统的CO-2排放量。(The invention relates to an adjustable CO modified by an online decomposing furnace 2 An enrichment cement kiln system and method. By means of the regulating function of the components of the invention, the system can be switched to CO 2 Self-enriching type pre-decomposition kiln or conventional on-line type pre-decomposition kiln. The invention can be based on CO 2 The required quantity of the system, and further flexibly adjusting the CO of the cement kiln system 2 And (4) enriching amount. Moreover, the cement kiln system of the present invention allows for CO production without redesigning critical firing equipment 2 Enrichment and reduction of reconstruction cost. Furthermore, when the system of the present invention is used as a CO 2 In the flue gas at the outlet of the third row of cyclone preheaters in the self-enrichment type pre-decomposition kilnCO 2 The concentration is more than 70 percent, and the subsequent CO can be greatly reduced 2 High CO capture, purification and operation cost 2 The concentration flue gas amount can be flexibly adjusted to 5-30% of the outlet flue gas amount of the preheater of the conventional predecomposition kiln system, so that the CO content of the predecomposition kiln system is greatly reduced 2 And (4) discharging the amount.)