How to Choose Suitable Paper Machine Felt

How to Select Press Felt

The selection of press felt depends on the variety, quantity, and surface modification requirements of the paper being produced; Type of paper machine; The environmental conditions used for press felt; And the existing felt cleaning and purification equipment. When designing and selecting press felt, we must pay special attention to the relevant production technology parameters of the paper machine. Only by adjusting the relevant processes and technical parameters of the press felt appropriately according to the actual usage conditions of the paper machine can the press felt more effectively meet the actual needs of the paper machine.

Due to various factors such as paper machine conditions, paper types, and press felt performance, the applicability of press felt to paper machines is limited, while paper machines have very strict requirements for felts. To obtain an ideal press felt, it is necessary to understand the characteristics of paper making felts and carefully and reasonably select them based on the structure of the paper machine, production conditions, and the characteristics of the paper.

Selection of Types, Weights, and Sizes for Press Felt

The selection of varieties refers to the selection of press felt that are suitable for the machine and different parts among numerous different types of paper making felts.

After determining the type of felt selected, the square meter weight of the felt must be reasonably selected based on various factors of the paper machine.

The selection of size includes the choice of length and width of the paper making felt.

The determination of length refers to the actual length of the paper making felt that can meet the normal operation under tension on the paper machine, and should fully consider the change in elongation of the selected press felt.

The determination of width refers to the actual width that the paper making felt can meet during normal operation under tension on the paper machine, and should also fully consider the shrinkage rate changes of the selected press felt.

Selection of Breathability and Density for Press Felt

The accurate selection of air permeability for the press felt suitable for this machine is the key to determining the normal and efficient operation of the paper machine and the service life of the felt. At the same time, the variation curve of the air permeability of the selected press felt during use should be fully considered.

The choice of density is an important indicator for measuring the breathability of press felt from the side.

Special Requirements for Selecting Press Felt

Develop special properties of paper making felts to meet the special requirements of special paper machines and special paper types for press felt.