Features of paper machine

According to the needs of the papermaking process, the paper machine has a variety of structures, which are generally composed of components such as flow, forming, pressing, drying, finishing, coiling and transmission, and auxiliary systems and other supporting equipment.

It is a machine that makes paper pulp water suspension that meets the requirements of papermaking through the processes of filter dehydration forming, mechanical extrusion dehydration and drying. The paper machine includes the three main parts of forming, pressing and drying to complete the above process, and is equipped with the necessary finishing, coiling and transmission devices, as well as the circulation of pulp, pulp and white water, vacuum, ventilation and exhaust. Paper handling and lubrication, automatic control and other auxiliary systems. The specifications of a paper machine are often expressed in terms of the paper width (referred to as the paper width), the width of the copper net and the optimal working speed. The cutting width of modern large paper machines can reach 11m, the working speed can reach 1000m/min or more, the daily output of paper can reach hundreds of tons, and the weight of the whole machine can reach more than 1,000 tons, which is more than 100 meters long.

In general developing countries and the production of some special papers, small paper machines are more commonly used, with a width of 1 to 3 m and a working speed of tens of meters to 200 meters per minute.