Air Cushion Headbox
Air Cushion type headbox can increase the sizing pressure to meet the requirements of medium and high speed paper machines.
The headbox consists of square taper tube device, evener roll device, top lip plate adjusting device, box body,control system, spraying device, air path system, etc.The headbox is designed with customer performance parameters, which can ensure work performance.
Application
1.Headbox is used for sizing in fourdrinier wire section of paper making machine for producing cardboard paper, corrugated base paper, writing and printing paper, offset paper and so on.
2.Applicable speed range: 160-480m/min
Advantages
1.It can be used to produce the paper sheet with uniform and stable quantity, and there is no longitudinal flow on the web;
2.The lip area of headbox should not be affected by pressure, temperature and opening degree of the lip to ensure the uniform distribution of the width;
3.Easy to keep the box clean;
4.The ratio of jet to wire speed is controllable.
Key parameters
Adaptive speed : 100-500M/min (designed on requirements)
For example:3600/350 Air cushion Type Headbox
Paper kinds | 100-180g/㎡ paper |
Raw material | Reborn waste paper pulp |
Quantitative | 100-180g/㎡ |
Trim width | 3600mm |
Nozzle width | 3900mm |
Working speed | 250-300m/min |
Design speed | 350m/min |
Pulp consistency | 0.8%-1.1% |
Contraction percentage of paper web | ≤4 |
Retention rate | 75% |
Gauge | 4800mm |
Arrange type | Left hand machine |