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|Body Material:||Stainless Steel||Faceboard Material:||Ceramic|
paper plate making machine parts,
paper plate machine parts
The water leg type vacuum dewatering box in the fourdrinier paper machine
1. Structure: water leg type vacuum dewatering box (Wet suction box) is a low-vacuum (20-100 mm water column) box. It is fixed on a closed box by several panel strips with sharp front edges. Wide box surface. The panel material is the same as the foil box board. The box is mostly welded by stainless steel. Vacuum is generated by water leg.
2.Dehydration mechanism and characteristics:
2.1 Dewatering mechanism: The wet suction box combines the two functions of differential pressure dewatering and foil box dewatering, its dewatering capacity larger than that of the foil box, smaller than the ordinary vacuum box, and absorbing water no air absorb (the paper web in front of the waterline is suspended) , so it is called a wet suction box.
2.2 Dehydration characteristics:
The wet suction box is stable in dehydration, easy to adjust, and has a high retention rate of fine fibers and fillers, which can improve the difference between the two sides of the paper; the length of the wire can be shortened or the concentration of the slurry on the wire can be reduced, thereby improving the formation of wet paper uniformity.
2.3 Affecting factors: When the opening ratio is large, the slit is narrow, and the leading edge is sharp, the dewatering amount can be increased to maintain the stability of the slurry on the wire, and it can cause moderate turbulence in the slurry, which is beneficial to the forming of the paper web.
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