| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an absorbing soln. spray type wet process flue gas desurfurizing device capable of preventing the blowoff of gas and improving a desulfurizing efficiency. SOLUTION: A spray nozzle 4 is arranged near the wall surface of a waste gas passage, and is composed of the spray nozzles 23 different in their spray momentum (different in pressure, spray angle, flow rate, etc.). In this way, a local blowoff of the gas is prevented by varying the part where gas is apt to flow by changing the spray momentum in the direction orthogonal to a gas flow as for every spray step. Also the variation of the spray momentum in the surface orthogonal to the gas flow is reduced and the local blowoff of the gas is prevented by disposing at least one spray stage in which the dotty spray nozzles disposed in a tower are arranged in the surface orthogonal to the gas flow in addition of the spray nozzle disposed at the wall.</p> |
