The present invention relates to a dehydration box for an inclined hydroformer that dehydrates water of a special fiber paper during papermaking in the manufacture of special fiber paper, and includes a plurality of box units having side walls contacted with each other, and an inclined top surface of the box units. It consists of a suction part formed in the, and the white water transfer pipe connected to each box unit to transfer the sucked white water, the bottom of the box unit is formed to be round, the white water transfer pipe is made to be connected to the bottom of one side of the box unit On the other side, transparent windows for internal observation are installed, and the inner surface is buffed to prevent the deposition of fibers, so that the accumulation or accumulation of scales of special fibers occurs in the dehydration box that circulates to dehydrate and reuse white water. Since the special fibers accumulated and aggregated do not flow back into the papermaking process, To minimize ryangryul can improve the quality and it will be easy to check.
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