In the pulping process, arc screens are usually arranged in the coarse screening, fine screening or concentration sections, featuring compact structure, no power supply, stable operation and simple maintenance. Compared with pressure screens, arc screens cause less damage to fibers and are particularly suitable for high-concentration pulps or paper types with high requirements for fiber protection (such as cultural paper and specialty paper).

The arc screen in the pulp production industry is a key screening device in the pulp and paper making process, mainly used for pulp purification and coarse residue separation. Its core structure is an arc screen surface. Through the centrifugal force generated by the pulp on the arc screen surface, qualified fibers pass through the screen gaps and enter the accept pulp zone, while coarse impurities, undistilled substances, etc. are retained and discharged from the slag discharge port.
In practical applications, the selection of arc screens should be based on parameters such as pulp concentration, flow rate, and impurity content to determine the screen gap specifications and installation angles (usually 45°-60°), and the wear of the screen plates should be regularly inspected to ensure screening efficiency.

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