# TYPE: Coating Board Paper Making TIME: 2017-07-28
Before the slurry get onto the wire, it need further preparation, namely through dilution, purification and screening process. Finally, the clean and well dispersed slurry liquid will be sent to wire forming through the approach system equipment. The approach flow system is defined from the pool to make paper pulp equipment and piping between the headbox system, also known as sizing system.
1. Fully mixing slurry;
2. Grout concentration of dilution slurry to headbox;
3. Slag removal by slurry;
4. Stable concentration and flow rate.
Unreasonable approach system design will directly influence the paper makingļ¼causing quantitative asymmetry of paper banners, quantitative perforation, even broken phenomenon. In order to ensure the smooth operation of paper machine, and produce high quality products, the approach system plays a vital role. With the increase of paper machine speed, the approach system are increasingly of high requirements.
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