CAJ | 학술논문

在声波团聚室中研究了润湿剂液滴与细颗粒碰撞团聚脱除特性，提出了一种利用润湿剂促进细颗粒在声波场中捕集的新方法。结果表明，不同润湿剂溶液对细颗粒在声波场中的团聚脱除效果存在较大差异，采用 JFC 和 FS-310润湿剂溶液时，细颗粒分级脱除效率与采用水时的分级脱除效率相近。而 SDS 和 Silanol w22溶液，则可有效提高细颗粒在各粒径段的分级脱除效率。细颗粒在声波场中的脱除效率与润湿剂润湿性能具有很好的相关性，随润湿剂对细颗粒相对接触角增大而降低，在声压级为150 dB 时，相对接触角由83°降低到0°，细颗粒脱除效率提高了18%，在无声场作用下，脱除效率仅提高了5%。细颗粒脱除效率随声压级的增大而提高，在低声压级条件下，添加润湿剂可有效提高细颗粒脱除效率，声压级在130 dB时，添加 SDS 溶液液滴后细颗粒脱除效率比声场单独作用时的脱除效率提高了25%。表明添加润湿剂可有效提高细颗粒在声波场中的团聚脱除效率，实现在低声压级条件下，获得高的细颗粒脱除效率。
재성파단취실중연구료윤습제액적여세과립팽당단취탈제특성，제출료일충이용윤습제촉진세과립재성파장중포집적신방법。결과표명，불동윤습제용액대세과립재성파장중적단취탈제효과존재교대차이，채용 JFC 화 FS-310윤습제용액시，세과립분급탈제효솔여채용수시적분급탈제효솔상근。이 SDS 화 Silanol w22용액，칙가유효제고세과립재각립경단적분급탈제효솔。세과립재성파장중적탈제효솔여윤습제윤습성능구유흔호적상관성，수윤습제대세과립상대접촉각증대이강저，재성압급위150 dB 시，상대접촉각유83°강저도0°，세과립탈제효솔제고료18%，재무성장작용하，탈제효솔부제고료5%。세과립탈제효솔수성압급적증대이제고，재저성압급조건하，첨가윤습제가유효제고세과립탈제효솔，성압급재130 dB시，첨가 SDS 용액액적후세과립탈제효솔비성장단독작용시적탈제효솔제고료25%。표명첨가윤습제가유효제고세과립재성파장중적단취탈제효솔，실현재저성압급조건하，획득고적세과립탈제효솔。
The characteristics of agglomeration removal between wetting agent droplets and fine particles wereinvestigated in an acoustic agglomeration chamber. A novel technique using wetting agents to promote the fine particle capture by acoustic agglomeration was presented. The experimental results show that the type of wetting agent has a significant effect on the acoustic agglomeration of fine particles. The particle stage removal efficiencies using JFC and FS-310 are similar to that using plain water droplets, but the removal efficiencies bySDS and Silanol w 22 are much higher than that using water droplets. Fine particle removal efficiency in the acoustic field correlates well with the wettability of wetting agents, which decreases with increasing the relativecontact angle of wetting agents. While the relative contact angle descends from 83° to 0°, the removal efficiency of fine particles with sound pressure level of 150 dB increases by about 18% . However, the removal efficiencyof fine particle without acoustic effects only increases by about 5% . Higher sound pressure level can improve the particle removal efficiency that is extremely low when the sound pressure level is below 150 dB. However it canbe improved with wetting agents addition to the atomization droplets. The capture efficiency can be increased by 25% with SDS adding than acoustic effect only under the sound pressure level of 130 dB. It indicates that theremoval of fine particles is effectively improved by using wetting agents with acoustic wave agglomeration , and the high removal efficiency can be achieved at a low sound pressure level.