发明名称 |
UNBURNED CARBON REMOVAL METHOD IN COAL ASH |
摘要 |
PROBLEM TO BE SOLVED: To efficiently separate an ash content in fly ash when unburned carbon in the fly ash is removed by applying a floatation method by surface reforming. SOLUTION: The unburned carbon removal method comprises a step for mechanically classifying/separating the unburned carbon b in the coal ash a using a classifier 1; a step for crushing or pulverizing the coal ash a a part of the unburned carbon removed by the classifier 1 by a crushing machine 10; a step for adding water c to the coal ash a crushed or pulverized by the crushing machine 10 to make a slurry; a step for adding a capturing agent e to the slurried coal ash a; a step for giving a shearing force to the slurry added with the capturing agent e to selectively deposit the capturing agent e onto the unburned carbon b in the coal ash a; a step for adding a bubbling agent f to the slurry after the capturing agent e is deposited on the unburned carbon b; and a step for stirring the slurry after addition of the bubbling agent and selectively floating/separating the unburned carbon b with the generated bubbles n. COPYRIGHT: (C)2007,JPO&INPIT
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申请公布号 |
JP2007054773(A) |
申请公布日期 |
2007.03.08 |
申请号 |
JP20050245584 |
申请日期 |
2005.08.26 |
申请人 |
MITSUI ENG & SHIPBUILD CO LTD |
发明人 |
MATSUO KAZUYOSHI;ABE KAZUO;SUZUKI TAKAO |
分类号 |
B09B5/00;B02C23/08;B03C1/02 |
主分类号 |
B09B5/00 |
代理机构 |
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