水泥窑热生料脱硫技术的特点是什么？

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水泥窑热生料**脱硫技术 针对传统的水泥窑干法脱硫技术存在的问题，开发了一种水泥窑热生料**脱硫技术。该技术在传统采用炉热生料干法脱硫的基础上，通过基于计算流体动力学（CFD）数值模拟等手段，优化了水泥窑干法脱硫系统，显著提升了脱硫反应效率。具体来讲，该技术具有如下特点：（1）强化了热生料与烟气中SO2的混合效果。通过CFD模拟等先进手段，对热生料取料位置、系统优化布置、热生料喂入位置等进行CFD模拟优化，促*了热生料与烟气中SO2的混合，有助于提高脱硫反应效率。

Aiming at the problems existing in the traditional dry desulfurization technology of cement kiln, a hot raw meal desulfurization technology of cement kiln is developed. Based on the traditional dry desulfurization with furnace hot raw meal, this technology optimizes the dry desulfurization system of cement kiln by means of computational fluid dynamics (CFD) numerical simulation, and significantly improves the desulfurization reaction efficiency. Specifically, the technology has the following characteristics: (1) strengthening the mixing effect of hot raw meal and SO2 in flue gas. The position of raw meal feeding and desulfurization is optimized by CFD simulation, which helps to improve the efficiency of raw meal heating and desulfurization system.

（2）延长了脱硫反应时间。通过对传统水泥窑干法脱硫系统的优化，显著扩大了脱硫反应区域，延长了脱硫反应时间。使得脱硫反应时间由传统的1~2 s延长至8~10 s，从而显著提升了脱硫反应效率。
(2) The desulfurization reaction time was prolonged. By optimizing the traditional dry desulfurization system of cement kiln, the desulfurization reaction area is significantly expanded and the desulfurization reaction time is prolonged. The desulfurization reaction time is extended from 1 ~ 2 s to 8 ~ 10 s, which significantly improves the desulfurization reaction efficiency.
（3）提高了脱硫剂的反应活*。直接从解炉抽取热生料，其含有未经冷却的CaO、K2O、Na2O等氧化物，具有反应*性高、颗粒内部孔结构发达、比表面积大等优势，因此与SO2反应速率更高。
(3) The reaction activity of desulfurizer is improved *. The hot raw meal is directly extracted from the furnace, which contains uncooled oxides such as Cao, K2O and Na2O. It has the advantages of high reactivity, developed pore structure in the particles and large specific surface area. Therefore, the reaction rate with SO2 is higher.