Working Principle of PF‑Clean Dry Fabric Cleaning System

The PF‑Clean on‑line dry fabric cleaning system, developed by Meixin Paper Technology, is a specialized cleaning solution for paper machine dry fabrics. It performs full‑function cleaning while the paper machine keeps normal production, without machine shutdown for fabric maintenance.

The core executing component is the high‑efficiency cleaning head, which is installed at the wrap‑angle zone between dry fabric and guide roller and maintains a tiny fixed gap against the running dry fabric surface. Inside the cleaning head, high‑pressure water nozzles spray pressurized water toward the fabric at optimized specific angles. The high‑energy water jet penetrates fabric meshes, loosens and detaches stickies, pitch and other embedded contaminants from dry fabric fibers and voids.

Right after high‑pressure water impact, air knives fitted on both front and rear sides of the cleaning head generate high‑speed airflows. These powerful air streams blow loosened stickies and debris fully away from the fabric surface. Meanwhile, the vacuum suction slag‑removal unit immediately draws off separated contaminants out of the paper machine system. Afterwards, the outer air knife sweeps residual moisture off the dry fabric thoroughly. This multi‑step procedure returns the dry fabric to clean and dry condition without interfering with continuous papermaking operation.

The complete system also includes high‑pressure water pump station, intelligent PLC control cabinet, vacuum fan, cyclonic air‑water separator and water‑sealed slag‑collecting trough. The PLC central control unit realizes man‑machine interactive operation, adjusting cleaning parameters adaptively according to fabric fouling degree. All contaminated waste is collected and separated via vacuum pipeline assemblies, preventing secondary re‑contamination to dry fabric and paper web. The whole process requires no chemical additives, relying purely on mechanical high‑pressure water, compressed air and vacuum extraction to achieve reliable on‑line cleaning performance.