The invention relates to a back
sizing system for
papermaking, which comprises a glue supply unit, a
sizing unit and a
drying unit, the glue supply unit is used for preparing a
sizing material for the sizing unit, the sizing unit is used for
coating a paper surface with the sizing material, and the
drying unit is used for
drying the sizing material coated on the paper surface; wherein the sizing unit comprises a sizing rack, a first power source, a second power source, a third power source, a back roller, a back sizing feeding roller, a scraper, a first motor and a second motor, paper penetrates through the space between the back roller and the back sizing feeding roller, the back roller is used for guiding the paper, and the back sizing feeding roller is used for
coating sizing materials on the paper; the scraper is used for scraping redundant
fiber wool particles on the paper surface. The back sizing
system for
papermaking is used for optimizing the quality of all kinds of paper for
coating grey ground white, improving the first-grade product rate and increasing the profit, the quality of finished products is effectively improved through the equipment, the first-grade product rate can be improved by 2%, the annual output is 650,000 tons, and the annual profit is increased by 39,000,000.