What are the things to pay attention to when using an Air cushion type headbox?

What are the things to pay attention to when using an Air cushion type headbox?
Air cushion type headbox needs to pay attention to the following aspects during use:
1、 Installation and Inspection
Correct installation:
Before using the air cushion headbox, it is necessary to ensure that it is correctly installed in the designated position and connect the infusion pipeline as needed. Ensure that all components are securely and reliably installed to avoid loosening or detachment.
Appearance inspection:
Before use, check the appearance of the headbox for any damage, such as creases, dents, etc. Damaged headboxes are not suitable for use to avoid problems during use.
Sealing performance inspection:
Check the sealing performance of the headbox and the connection of the infusion pipeline to ensure that there is no leakage or leakage. Sealing performance is the key to the normal operation of air cushion flow boxes, and once leakage occurs, it will affect the forming quality of the paper pages.
2、 Operating standards
Choose the appropriate air cushion pressure:
The air cushion headbox controls the flow rate and distribution of slurry through air cushion pressure. During use, it is necessary to choose the appropriate air cushion pressure based on production needs and paper locomotive speed. Excessive or insufficient air cushion pressure can affect the quality of paper forming.
Pay attention to the distribution of slurry:
The air cushion headbox needs to ensure that the slurry is evenly distributed across the full width. During use, it is necessary to regularly observe the distribution of the slurry and make timely adjustments if there is any unevenness.
Avoid severe vibrations:
During use, it is important to avoid severe vibration or collision with the air cushion headbox. Vibration and collision can affect the stability and service life of the headbox.
3、 Maintenance and upkeep
Regular cleaning:
Regularly clean the interior and exterior of the air cushion headbox to prevent impurities and residues from contaminating the material and affecting subsequent use. When cleaning, use appropriate cleaning agents and tools to avoid damaging the surface of the headbox.
Check for wear and tear:
Regularly inspect the wear and tear of the air cushion headbox, especially the components that come into direct contact with the slurry. If there are severely worn or damaged components, they should be replaced in a timely manner.
Lubrication and maintenance:
Regularly lubricate the components that need lubrication in the air cushion headbox to ensure its normal operation. At the same time, regular maintenance should be carried out on the convection slurry box to check its performance and stability.
4、 Adjustment and optimization
Adjust the air cushion pressure:
Adjust the air cushion pressure in a timely manner according to production needs and changes in paper machine speed to achieve the best paper forming effect.
Optimize slurry distribution:
Optimize the distribution of slurry by adjusting the structure and parameters of the headbox. For example, the speed and position of the homogenizing roller can be adjusted to improve the uniformity of the slurry.
Pay attention to the slurry supply system:
The performance of the air cushion headbox is also affected by the slurry supply system. Therefore, during use, attention should be paid to the stability and flow control of the slurry supply system to ensure that the slurry can be stably and uniformly supplied to the headbox.
5、 Safety precautions
Operational safety:
When operating an air cushion headbox, it is necessary to follow safety operating procedures and wear protective equipment. Especially when handling high-pressure gases and high-temperature slurries, extra caution should be taken.
Emergency handling:
Develop emergency plans and conduct regular drills to quickly and effectively respond to equipment malfunctions or accidents.
In summary, during the use of air cushion headboxes, attention should be paid to issues such as installation and inspection, operating standards, maintenance and upkeep, adjustment and optimization, and safety precautions. Only by doing these tasks well can we ensure the normal operation and long-term stable use of the air cushion headbox.