Conical Refiner disc Refiner Disc for Double Disc refiner

Refiner Disc

After boiling or mechanical grinding, screening and other treatment, the pulp still can not be used directly to make paper.

Because the fiber in the pulp lacks the necessary flexibility, the combination of fiber and fiber is not ideal, if it is used to make paper, paper will be loose and porous, with rough surface, low strength, thus can not meet the requirements of use. Therefore it is necessary to use disc refiner.

Classification

Cone refiner disc, round refiner disc, heat refiner disc, dispersing machine refiner disc, hot dispersing refiner disc, etc;

There are several to dozens of tooth types for each size of refiner plate. There are four categories of papermaking refiner discs: HY cut fin, Broom fin, Soft fin and Ease fin.

Material

In the development of the manufacture and use of discs worldwide, materials such as stone, grey iron, nickel-hard white iron, high-chromium cast iron, nickel-chromium alloy, polyalloys, stainless steel, tungsten carbide, polymer polyethylene, modified nylon, ceramics and emery have all been used.

Because of wear resistance and economic considerations, people mostly choose alloy and cast iron materials.

Multi-alloy discs with a rough surface tend to have a better cleaving and sweeping effect on fibres; special steel discs tend to have a more violent cutting effect on fibres.