【摘要】 为了提高含尘气体湿洗分离净化中颗粒在气液界面的沉积效率，以玻璃微珠、空气和超纯水为介质，研究了颗粒与气液界面的平均撞击速度、颗粒质量浓度、液相表面张力、颗粒表面可溶性组分、气液界面液相流速等对微米级颗粒在气液界面沉积效率的影响。研究结果表明，对小于4.2μm的颗粒，随着颗粒平均撞击速度、颗粒质量浓度、液相表面张力、气液界面液相流速的增大以及颗粒表面被可溶性组分修饰，颗粒在气液界面的沉积效率显著增加，最高可达73%；而对大于4.2μm的颗粒，其在气液界面的沉积效率均在60%以上，且受上述条件变化的影响较小。更多还原

【Abstract】 In order to improve the deposition efficiency of particles at the gas-liquid interface in the wet scrubbing of dusty gas, the effects of the average impact velocity of micron particles at the gas-liquid interface,particle mass concentration, liquid surface tension, soluble component of particle surface and liquid flow rate at gas-liquid interface on the deposition efficiency of micron particles at the gas-liquid interface were investigated experimentally with glass beads, air and ultrapure water as experiment media. The results indicated that for the particles below 4.2 μm, the increase of impact velocity, mass concentration, liquid surface tension, liquid flow rate at gas-liquid interface and the modification of soluble components on the particle surface could promote the deposition efficiency to 73%. For particles above 4.2 μm, the deposition efficiency was more than 60%, and was less affected by the above conditions.更多还原