Open And Closed Type Head Box For Fourdrinier Paper Making Machine
Open Type Head Box
Open type head box consists of flow distributor device,evener device,lip device, head box body. Its working speed is 100-200M/min(or special designed according to requirement).
1.Flow distributor device: pyramid pipe manifold pulp inlet,steps pulp distributor.
2.Evener device: two evener rolls,evener roll running speed adjustable.
3.Lip device: consist of up lip,micro-adjuster device. up lip can be adjusted up and down,forth and back,adjusted by manual worm-gear case.
4.Head box body: open type head box body.
Open Type Head Box
Closed Type Air Cushion Head Box
Closed type air cushion head box consists of flow distributor device,evener device,lip device,head box body,air supply system,computer controller.Its working speed is 200-400M/min(or special designed according to requirement).
1.Flow distributor device: pyramid pipe manifold pulp inlet,3 steps pulp distributor. equipped with pressure balance indicator to help adjust the balance of pulp inlet pressure.
2.Evener device: two evener rolls,evener roll drive with constant speed worm-gear case
3.Lip device: consist of up lip,bottom lip,micro-adjuster device and opening indicator. up lip can be adjusted up and down,forth and back,adjusted by manual worm-gear case,opening is 5-70mm.up lip outlet with vertical small lip,vertical small lip is adjusted by precise worm-gear ,with dial indicator.
4.Head box body: sealed stainless steel box.
5.Air supply device: Trefoil low ripple roots blower
6.Computer controller: Decoupling of the entire computer automatic control.total pressure control and pulp level control is stable and easy to operate.