| 摘要 |
<p>PURPOSE: To provide a dry dedusting device having a moving bed type dedusting column by which dust contg. alkali salt of Na and K, SO3 mist, hydrocarbon or the like contained in flue gas are removed with relatively simple equipment and the flue gas is made invisible. CONSTITUTION: In a dedusting column 1 in which coke for steel making is held by an inlet louver and an outlet louver to flow down, waste gas is introduced orthogonally to the flow of the coke from the inlet louver to make dust components adsorbed on the coke for steel making. Since the coke for steel making does not adsorb SO2 , a desorption column for regenerating active carbon and a by-product recovering device for by-product sulfuric acid, etc., are not required. The dust components adsorbed on the coke for steel making are scraped off by a screen 4 and removed, and the coke for steel making is circulated again and used.</p> |
