压榨毛毯

压榨毛毯是造纸机压榨部中一种关键的工程纺织部件，设计为连续透水带，用于输送纸幅通过压榨压区。它既作为输送带又作为脱水介质，在高压下从湿纸页中吸收水分，同时提供均匀支撑以防止纸页压溃或产生压痕。现代压榨毛毯经过精密设计，具有特定的透气度、压缩性和表面特性，以优化不同纸种和车速下的脱水效率、能源效率和纸张质量。

压榨毛毯的工作原理基于机械压力和毛细作用的结合。当纸幅和毛毯通过辊间的压榨压区时，液压压力迫使水分从纸页进入毛毯的多孔结构。毛毯的透气性和表面几何形状促进水分从纸页中转移，而其压缩性确保压力分布均匀。离开压区后，毛毯通过真空箱或其他脱水元件释放水分，然后返回再次吸收水分，形成连续的脱水循环。

The press felt operates on combined mechanical pressure and capillary action principles. As the paper web and felt pass through press nips between rolls, hydraulic pressure forces water from the paper into the felt's porous structure. The felt's permeability and surface geometry facilitate water transport away from the sheet, while its compressibility ensures uniform pressure distribution. After exiting the nip, the felt releases water through vacuum boxes or other dewatering elements before returning to receive more water, creating a continuous dewatering cycle.