What are the applications of vacuum rotary drum filter in papermaking?

Vacuum drum filters are widely used in the process flow of paper mills, mainly in the following aspects:

1. Black liquor evaporation
The black liquor produced in the pulp washing process is concentrated by vacuum drum filters so that these liquids can be recovered in the recovery furnace to recover chemicals and reused in pulp production.
2. Rough pulp washer.
Before bleaching or other raw material preparation work, vacuum drum filters are used to remove pulp chemicals from papermaking raw materials and effectively clean the raw materials.
3. Lime slurry filtration.
During the white water clarification process, vacuum drum filters are used to recover lime from lime slurry, form ash cakes and reuse them, and improve the recycling rate of resources.
4. Sediment filtration.
It is responsible for filtering non-burning suspended particles, incompletely burned carbon particles and iron-containing compounds in green liquor to ensure paper quality.
5. Vacuum dehydration.
In the raw material preparation stage, vacuum drum filters are used to increase the raw material concentration, dehydrate from the pulp in proportion, and optimize the subsequent process flow.

Therefore, the application of vacuum drum filter in the paper mill process covers all links from raw material processing to paper forming. Its efficient solid-liquid separation and gas removal functions are of great significance to improving paper quality, reducing energy consumption and protecting the environment.

Any requirements, contact us now!

Nina

Email: nina@filtrationchina.com

Mobile/Whatsapp/WeChat：+86 172 6957 1060