| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a simple structural and miniature system for cleaning a combustion gas of a coal fired boiler which classifies coal ash caught from the combustion gas discharged from the coal fired boiler and which can directly recover minute particle coal ash. <P>SOLUTION: The system for cleaning a combustion gas of a coal fired boiler includes a coal fired boiler burning coal as fuel, a denitrification device installed downstream of the coal fired boiler and decreasing nitrogen oxides in the combustion gas discharged from the coal fired boiler, a dust removing device installed downstream of the denitrification device and catching and recovering minute particles of coal ash contained in the combustion gas flowing down through the denitrification device, a desulfurization device placed downstream of the dust removing device and absorbing the sulfur oxides in the combustion gas flowing down through the dust removing device, and a classification device for coarse particles installed upstream of the dust removing device and installing a louver inside whose arrange angle can be adjusted and classifies the coarse particles in the coal ash contained in the combustion gas. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
