3700 Four Multilayer Board Machine for Paper Making, Paper Pulping Line Machine
Four multilayer board machine, with a wire paper width of 3700mm, is mainly used for making linerboard boxes. The paper machine is mainly divided into the following parts: headbox, fourdrinier wire section, press section, front drying section, oblique surface sizer, rear drying section, calendering section and coiling section.
1. Headbox: Four sets of air-cushion headboxes, corresponding to the surface wire, lining wire, core wire and bottom wire respectively. By controlling the gas pressure in the headbox, the sizing pressure of the online slurry can be controlled and stabilized. head.
2. Wire section: Four layers of wire mesh, namely surface layer wire mesh, lining layer wire mesh, core layer wire mesh and bottom wire mesh, main components: breast roll, forming board, dewatering board, vacuum box, compound roll, vacuum couch roll, drive net Rollers, guide rollers and racks, etc. The surface layer net, the lining layer net, the core layer net and the bottom net are equipped with a forming net each.
3. Pressing section: Divided into one pressing, two pressing, three pressing and four pressing. The first press is a vacuum press with a vacuum suction roller, equipped with a rubber-coated metal roller and a vacuum press roller; the second press and the third press are large-diameter presses, each equipped with one upper and lower rubber-coated metal rollers; the fourth press is Glossy press, with one stone roller and one rubber-coated metal roller. The first press, the second press and the third press are all equipped with a guide roller and a felt suction box, and are equipped with upper and lower felts. The first press, the second press, the third press and the fourth press are pressurized by the hydraulic cylinder.
4. Front drying section: Φ1500/Φ1800 drying cylinder, grouped transmission, with guide roller and drying net. With closed air hood.
5. Inclined surface sizing machine: one chrome-plated metal roller and one rubber-coated metal roller. The surface sizer pressurization method is the corrugated pneumatic tire.
6. Post-drying section: Φ1500/Φ1800 drying cylinder, grouped transmission, equipped with net guide roller and drying net. With closed air hood.
7. Calendering section: double-roller calender, the upper and lower rolls are metal rolls, and the pressure method is corrugated pneumatic tire pressure.
8. Coiling Department: Pneumatic horizontal reeling machine, the pressurizing method is cylinder pressurization.