Stainless Steel Open Type Headbox for Medium Paper Machines

Product Description

Product Description

The Paper Machine Headbox is a key part of modern paper machines. Its structure and properties are decisive for the formation of the paper and the quality of the paper. Can effectively disperse fibers.

The high turbulence headbox produces high-intensity micro-motion, which effectively disperses the fibers, prevents fiber precipitation and re-flocculation, and effectively increases the strength of the sheet.

Detailed Photos

Product Parameters

Form	Features	Scope of application
Open type	The pulp level in the box is used to control the speed of the online pulp (pulp speed), usually by adjusting the height of the weir in the box	Generally used in low and medium-speed paper machines
Air cushion type	Use compressed air to adjust the air pressure above the pulp surface in the box to adjust the speed of the online pulp (that is, the pulp position does not change, and the air cushion pressure head is changed to obtain an appropriate pulp pressure head)	More widely used in paper machines with higher speeds 2. It is also used for some medium-speed paper machines
Hydraulic full-flow type	The headbox is filled during the pulp flow process Use the slurry pressure of the flushing pump, the slurry position of the high-level box or the air pressure of the air cushion stabilized head box to adjust the speed of the pulp on the Internet 3. It cannot absorb the pulsation of pulp, so it is necessary to set up a pulse attenuation device in the pulp feeding system (such as an air cushion stabilized headbox) 4. The full-flow headbox with special structure can be used as a multi-layer headbox	It is applied to the papermaking machine with sandwich screen or the new type fourdrinier paper machine or cylinder paper machine with higher speed
Hydraulic Full flow air cushion combined type	Based on the general full-flow headbox, an air cushion stabilization chamber and overflow device are added to stabilize the pulp pressure in the box, eliminate pulsation and eliminate foam	It is applied to the papermaking machine with sandwich net and the fourdrinier paper machine with higher speed
Hydraulic Multi-layer hydraulic	Along the Z direction (vertical direction) of the headbox, divide the propeller and rectifier unit of the headbox into several independent units (generally divided into 2-3 units), each unit has its own slurry feeding system	At present this kind of headbox is only used for sandwich paper machine

 

Company Profile