| 摘要 |
<p>PURPOSE:To accomplish effective purification of dust-contained waste gas by checking the deposit of dust, mist and the like through purification remove entrainment drops, salt of Ca<2+>, and like cooled in conduct with circulating purifying water after dust removal and a wet type treatment. CONSTITUTION:A dust-contained waste gas is admitted to a wet type waste gas tretment apparatus from a conduit L1 to perform removal of dust, desulfurization and denitration. Then, the gas is fed to a water purifying section 2 where entrainment drops, fume dust and salt of Ca2+ by a cooling water. The purifying water is circulated through a line L3 while fed to the apparatus through a line L4 after a given time. Then, the gas is subjected to a heat exchange between the raw waste gas by a heat exchanger 4 via a mist separating section 3 and then, released. After the heat exchange, the raw waste gas is inducted to the apparatus through a line L2.</p> |
