Importance

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Abstract

An apparatus for refining a paper material is formed of a casing, a first chamber situated in the casing and having first and second openings, a second chamber situated inside the casing adjacent the first chamber and having a third opening, a screen plate for dividing the casing into the first and second chambers, and an agitating member situated inside the first chamber adjacent to the screen plate for agitating the paper material in the first chamber. The screen plate removes a part of foreign substances in the paper material. In the invention, a cleaning device for removing the other part of the foreign substances contained in the paper material is situated in the first chamber or the second chamber. The cleaning device is formed of a plurality of cleaners. The paper material supplied from the first opening passes through the cleaning device and the screen plate, and is discharged from the third opening so that the one and the other foreign substances are substantially removed from the paper material.

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First Claim