Manufacturing apparatus and manufacturing method of rapidly dewatering fiber for forming web

Abstract

The invention relates to a device and a method for preparing rapid dehydration fibers for forming fabric. The device comprises a surface layer tube and a core layer tube arranged in the surface layer tube concentrically in a sleeving manner, and the surface layer tube and the core layer tube are both connected with respective pressure supply devices. The device is characterized in that an annular intermittent vibration device is arranged on the peripheral surface of the surface layer tube in a sleeving manner, and the vibration frequency of the intermittent vibration device is adjustable. The method for preparing the dehydration fibers comprises the following steps: (1) the surface layer tube and the core layer tube are used for performing spinning towards a spinning liquid simultaneously, the intermittent vibration device transmits own vibration into the surface layer tube and the core layer tube during spinning, and the radial size of the core layer increases with decrease of the radial size of the surface layer in the axial direction of the fibers due to vibration; (2) a high-frequency electromagnetic heating coil is further used for heating surface and core fibers prepared in the step (1), the conductive core layer is enabled to produce heat, and a dehydration groove surrounding each fiber is formed in the outer surface of the fiber.

Description

technical field [0001] The invention relates to a manufacturing equipment and process of forming net dewatering fibers, in particular to a manufacturing device and a manufacturing method of fast dehydrating fibers used in forming nets. Background technique [0002] In recent years, China's paper industry has developed rapidly. Not only have many new pulp and paper technologies emerged, but pulp and paper equipment has also been constantly updated. The modern papermaking forming wire is an extremely important dewatering equipment, which is closely related to the web forming of the wire, and the web forming condition of the wire determines the final paper performance. As an important dewatering forming equipment in the wire section, the paper forming wire must have the following properties: (1) stable and fast dehydration ability; (2) good retention of fine fibers and fillers; (3) good dimensional stability ; (4) Long service life in line with paper machine conditions. [00...

AI Technical Summary

Problems solved by technology

[0003] The warp density and weft density of the forming fabric are important factors affecting the dehydration speed of the forming fabric. If the warp density and weft density are too large, the dehydration speed will be too slow, which will affect the production efficiency. If the warp density and weft density are too small, the fine fibers will and reduced retention of fillers

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