碟式分酸器在烟气制酸装置中的应用

对低气速填料塔,分酸均匀尤其重要。碟式分酸器的显著优点是分酸均匀、调节范围宽。以400kt/a烟气制酸装置为例,介绍了冷却塔和干吸塔碟式分酸器的设计参数和调节性能,冷却塔在于稀酸雾粒的均匀长大,减少喷淋密度对干燥和吸收效率均有利,细小雾粒的蒸发是干燥效率的控制步骤。减小塔底气液温差可相应减少吸收塔内化学酸雾。

Application of Multi-dish Acid Distributors in Metallurgical Acid Plant

Uniformity of acid distribution is particularly important for packing towers with lower gas velocity. The obvious advantages of multi-dish acid distributor include more uniformity of acid distribution and wider adjustment rate. With one 400 kt/a metallurgical acid plant as object, design parameters and adjustable performances of multi-dish acid distributors in cooling tower, drying and absorption towers are introduced. Uniform growing of particles of dilute acid is key to cooling towers. Reduction spraying density promotes improvement of drying and absorption rates. Evaporation of smaller acid mist droplet controls drying rate. Narrowing temperature difference between inlet gas and outlet acid at tower bottom is benefitial to drop chemical acid mist in absorption towers.