In the papermaking industry, the drying cylinder is a key
equipment, the main function of which is to heat and dry wet paper
to achieve the required moisture content and quality requirements.
Specifically, the drying cylinder is usually located in the dryer
part of the papermaking machine, and its functions include:
1. Drying wet paper: The drying cylinder evaporates the moisture in
the wet paper with high humidity by transmitting hot air to the
paper or directly heating it. This process can be carried out in
multiple stages to gradually reduce the moisture content of the
paper until the required dryness is reached.
2. Improving paper quality: Through an effective drying process,
the drying cylinder can help improve the density and flatness of
the paper, reduce the roughness and unevenness of the paper
surface, and thus improve the printing performance and tactile
texture of the paper.
3. Enhancing the stability of the paper: The dried paper is more
stable and is not easily affected by moisture absorption or
deformation, which affects subsequent processing and use. This is
very important for the long-term storage, transportation and
application of paper.
4. Saving energy and improving efficiency: Drying cylinders are
usually designed to be able to use energy efficiently, ensuring
that a large amount of paper can be dried in a short time, thereby
improving the production efficiency of the papermaking machine and
saving production costs.
In summary, drying cylinders play an indispensable role in the
papermaking industry, directly affecting the final quality and
production efficiency of paper. Through precise control and
optimized design, drying cylinders can ensure that each piece of
paper reaches the required dryness and quality standards.
