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 paper making device is a combined equipment for paper making, which is mainly composed of wire, pressing and drying parts. The wire part has two kinds of cylinder wire and fourdrinier wire. The pressing section is composed of pressing spokes and papermaking felts, and the drying section is composed of one or several drying cylinders. Some Fourdrinier machines are also equipped with mechanical calenders to improve paper smoothness and tightness. There are many types of papermaking equipment, such as single-dryer paper machine for making single-sided glossy paper, fourdrinier multi-cylinder paper machine for making general paper, tissue paper machine for making typing paper and cigarette paper, cardboard machine for making cardboard, etc.