The composition and function of the wire section of the Fourdrinier paper machine

What are the parts of the wire department of the Fourdrinier paper machine?

Answer: The wire department of the Fourdrinier paper machine is mainly composed of the headbox and the wire case. The mesh part consists of breast roll, case roll, water baffle, chopping board, vacuum suction box, couch roll, forming plate, facing roll, net drive roll, net guide roll, scraper, tensioning device, net shaking device, Copper mesh correction device, etc.

What is the role of the wire department of a Fourdrinier paper machine?

Answer: The wire part is the main part of the paper machine. The main function of this part is to remove most of the water in the netting paper to form a wet paper sheet. The dehydration method is filtration and suction dehydration. Generally, the amount of water removed from the wire section accounts for more than 95% of the dehydration of the netting paper.

Usually these two functions are interrelated, forming a wet paper sheet during the dehydration process, and further dewatering in the composition of the wet paper sheet, and finally reaching a uniform wet paper sheet with a certain wet strength. In essence, the formation of wet paper sheets is the result of the gradual deposition of fibers on the web, and the interweaving of fibers into a thin layer. Only when the fibers are evenly arranged in a crisscross pattern on the web surface, can a high-quality paper with uniform uniformity, thickness and strength be formed throughout the entire width of the sheet. In short, the function of the wire section of the Fourdrinier paper machine is the process of changing a liquid suspension into a solid wet paper sheet.