| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a flue gas treatment method capable of reliably sticking a precoat agent to a filtration material of a bag filter and enabling the flue gas treatment operation smoothly thereafter. <P>SOLUTION: When starting the operation of a dust collecting apparatus, the precoat agent is stuck to a new filtration material 12. Air is sent to a primary side 1 through an inlet 13, and at the same time, the precoat agent is supplied from a hopper 20 to the air. Compressed air is intermittently jetted from a nozzle 15. The precoat agent powder is to be deposited on the surface of the filtration material 12, and when the compressed air from the nozzle 15 is jetted to the secondary side of the bag filter 10, the precoat agent powder is spread to the meshes of the filtration material 12 and enters into the meshes. The precoat agent powder entering into the meshes is firmly held in the filtration material 12. Thereafter, a flue gas to which a flue gas treatment agent containing 50 wt.% or more of an alkaline agent is added is efficiently treated by being passed through the bag filter 10. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
