Recovery of pulverized coal from slurry containing the same |
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| 申请号 | JP4965480 | 申请日 | 1980-04-14 | 公开(公告)号 | JPS56145990A | 公开(公告)日 | 1981-11-13 |
| 申请人 | Hitachi Zosen Corp; | 发明人 | HARADA KAZUO; YOSHII NOBUO; OGINO ETSUO; | ||||
| 摘要 | PURPOSE: To quickly granulate and recover pulverized coal contained using a small amt. of a binder, by mixing a pulverized coal-contg. slurry with added coarse coal. to which a binder is attached. CONSTITUTION: A slurry of pulverized coal of particle size ≤about 500μ supplied via conduit 1, is treated by liquid cyclone 2, from which a slurry contg. a coarse coal particle separated is sent via conduit 3 to tank 4 and a slurry contg. a pulverized coal particle is sent to thickener 6 via conduit 5. While a coarse coal having a binder on the surface, obtd. by mixing coarse coal of particle size of several mm with a binder (e.g., heavy oil) in mixture 7, is introduced via conduit 8 into the thickener 6, where the pulverized coal particle is attached to the coarse coal, and granulated by mixing the coarse coal with said slurry of the pulverized coal. The resulting granule is carried via conduit 13 to tank 4 (a supernatant liquid in the thickener 6 is discharged via overflow trough 14 and exit conduit 15). COPYRIGHT: (C)1981,JPO&Japio |
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