Preparation before using the headboxThe headbox has always been considered the heart of a paper machine and plays a decisive role in the quality of the paper. The headbox of a modern paper machine is very automated, but it is still necessary to know how it operates. This article mainly introduces th
The air cushion headbox control system mainly controls the pressure and liquid level inside the headbox. By adjusting the rotational speed of the flushing pump and the Roots blower, the sizing amount of the flushing pump and the amount of air blown by the Roots blower will be changed.
The dilution method can be roughly divided into mixed box type (mostly used for rotary wire paper machines and low-speed narrow-width Fourdrinier paper machines) and punching tank type.
The tension control of the rewinding and unwinding system of the paper machine, such as the rewinding machine and the off-machine coating machine. There are two forming methods for papermaking, namely flat paper and web paper. Due to the large number of high-speed printing presses
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
The earliest used headbox paper machine was an open headbox with a pulping gate, which was produced in 1804 before the Fourdrinier brothers invented the Fourdrinier paper machine.