# TYPE: Kraft Liner Paper Making Line TIME: 2017-07-30
The slurry from pulping workshop may contain impurities of fiber bundle, sand and metal scraps, if not removed, they will affect the quality of the paper, or even cause damage to the equipment, and bring unnecessary trouble to the production. Therefore, before the slurry on paper machine making, generally need purification and screening process, on the one hand to remove dust and impurities in the slurry, on the other hand, the slurry is dispersed to make fiber suspensions dispersed.
So in the current production conditions, the pulp slurry, cannot be directly used to pulp, to remove some impurities contained in the slurry, these impurities have impact on the network and the quality of equipment, the maintenance of pulp and paper forming machine operation. At the same time, it is necessary to dilute the slurry into very fine fiber suspensions to ensure that the slurry is well dispersed and that a uniform pulp can be formed when the mesh is dehydrated. Therefore, before sizing the net, the pressure screen is required to be dealt with accordingly.
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