Invention and development of the paper machine. After the invention of papermaking, in the long history, after thousands of years, it has spread from China to West Asia, Europe, America, and all over the world. It was not until more than 1,600 years after the invention of papermaking that the first paper machine appeared in the world

A paper machine is a machine that makes paper pulp that meets the papermaking requirements after beating and modulation. According to this definition, the paper machine should start from the main pulp inlet pipe of the headbox or the pulp feeding system that must be attached to it until the paper reel that rolls out the paper roll.

The forming process of the paper web of the paper machine is the process in which the fiber suspension is dehydrated and deposited on the forming wire surface. It is mainly a hydrodynamic process; chemical forces and colloidal chemical forces also have a certain impact

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.

Paper dryer cylinder refers to a machine used in papermaking machinery to continuously dry the paper blank after the pulp is formed. Dozens of drying cylinders are placed crosswise in a paper machine.

Throughout the modern new high-speed headbox paper machine, it basically has the following main features:(1) Adopt high-efficiency hydraulic slurry rectifying components. Through the design of different structures and sizes of the hydraulic slurry rectifying elements