中小型锅炉烟气汽流喷雾干燥法脱硫的研究

RESEARCH ON DESULFURIZATION OF FLUE GAS FROM MEDIUM AND SMALL BOILERS BY STEAM JET ATOMIZATION DRYING

以４ｔ 链 条炉为 对象，研究 了中小 型燃煤锅 炉的 汽流 喷雾 干燥 法脱 硫，着 重 研究 了汽 流 式雾化器、气体分布 器、脱硫 塔及其配 套设备， 确定了最 佳操作 条件。结 果表明：气 液比 为２０ ～３０ ，蒸汽压力为 ０６ ～０７ Ｍ Ｐａ ，吸 收剂 计量 比为 １１ ～１６ ，烟 气中 Ｓ Ｏ２ 去 除率 可达 ７６ ％ ～９７ ％ ，不 发生粘壁、粒子结块

The desulfurization of the flue gas from medium and small coal fired boilers by steam jet atomization drying has been studied according to a 4T chain type boiler.It emphasizes on the steam jet atomizer,gas distributor,desulfurization column and other mating devices.The optimum operating conditions have been determined.The results show that the removal rate of SO 2 in the flue gas can be up to 76%～97% without adhibited liner or agglomeration of particles when the steam/liquid ratio is 2.0～3.0,the steam pressure is 0.6～0.7MPa and with an absorbent utilization ratio of 1.1～1.6.