| 摘要 |
PURPOSE: A method and a device thereof are provided to minimize the use of an alkali aqueous solution by washing only a slicing material after a centrifugal filtration process. CONSTITUTION: An alkali washing tank(22) mixes a centrifuge slicing material with an alkali aqueous solution and precipitates it. A water washing tank(23) mixes an alkali washing slicing material with washing water and precipitates it. A degreasing tank(21) mixes the slicing material with a degreasing agent aqueous solution and precipitates it. A transfer part transfers the alkali washing slicing material from the alkali washing tank to the water washing tank.
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