Design parameters of paper machine

Many design parameters are used when designing a paper machine. These design parameters are mainly determined by the following basic data.

1. Basic data expressing the production capacity and adaptability of the paper machine

The main technical characteristics of the paper machine's production capacity and adaptable range include net paper width, maximum working speed, adjustment range, forming section, pressing section and drying section.

2. Basic data expressing the performance structure of each part of the paper machine

In order to improve the degree of standardization, serialization, and generalization in the design and manufacture of paper machines, the main structural data of each part of the paper machine should also be included in the design parameters of the paper machine. These structural data include the dimensions of various rollers and surface layer technology. Features, the size and number of panels, the size and number of dryers, the gauge and bearing distance of each part, etc.

3. Data representing the overview of the paper machine

The data representing the overview of the paper machine, such as the length of the whole machine, the total mass, the maximum height from the rail surface, the height of the bottom layer, the total installed power of the transmission system, etc., show the paper machine’s floor space, space volume, unit production capacity, Technical and economic indicators such as airframe quality and power consumption are also data that cannot be ignored.

4. Basic data related to process technical indicators

The technical indicators related to the design and calculation of the paper machine include the pulp beating degree, the basis weight of the produced paper, the pulp concentration of the paper machine and the dryness of the paper web.

When deciding the design parameters of the paper machine, it must also be considered that the designed paper machine maintains a relatively advanced overall technical level to meet the ever-increasing product quality requirements. At present, the most obvious technological development or technology to be developed for domestic paper machines is the integration of electromechanical instruments. Therefore, the continuous addition of on-line detection instruments and control systems for production parameters and quality parameters is the primary consideration in the current domestic paper machine design.

In the design of paper machine, reducing production consumption, extending the service life of its parts and equipment, improving operating efficiency, and reducing production costs are still the goals pursued by designers.