| 摘要 |
<p>PURPOSE:To obtain high treatment efficiency by eliminating the pressure drop and clogging of a perforated plate, by setting the cross-sectional area of the unit hole of the perforated plate provided in a wet gas treatment apparatus to 1.0cm<2> or mores and the length thereof to 2-10cm. CONSTITUTION:The liquid 12 falling through the tubular unit hole 11a of a perforated plate 10a from the upper part of an apparatus is provided with a gas passing hole 14 having a surface at the center part thereof undulated by gas rising from below and gas-liquid mixing is promoted by this structure. In this constitution, at least one stage of the perforated plate 10a wherein the cross-sectional area of the hole 11a is 1.0cm<2> or more, desirably, 1.5cm<2> (inner diameter 14mm) or more and the length thereof is 2-10cm, desirably, 4-7cm, is provided. By this method, the pressure drop due to the perforated plate and clogging thereof are eliminated and high treatment efficiency of gas is obtained.</p> |
