Forming is a very important link in the process of paper making. Without good forming, we can not talk about the quality of the paper. The following summary of the production line is summarized.
1. The importance of the forming device:
(1) the paper industry is basically formed, and the physical indexes are basically stable.
The structure of the forming part is the most complex, the power consumption is large and the maintenance amount is large.
(3) 95% of the water is removed from the forming part.
2. The function of the forming device:
Get good wet paper
(2) dehydrate the formed paper to a certain degree of drying.
3. Classification of forming device: long net forming device, round net inquiry device, pinch mesh shaper, composite shaper and superimposed net shaper.
4. Fluid dynamics in the process of sheet forming: discharge, directional shearing and turbulence.
5. The main structure of the long fabric mesh net forming device: unended weave fabric, chest roll, volt roll, forming plate, case roll, dehydrating board, vacuum suction tank and so on. Main dehydrating elements: case roll, dehydrated board, vacuum suction tank
6. The principle and structure of the circular mesh forming device are composed mainly of the net cage, the net slot and the volt roll. The net cage is placed in the net slot. With the rotation of the cage, because of the difference between the liquid level inside and outside the mesh fabric, the material such as fabric in the slurry should be filtered and deposited on the net surface of the cage. When the fiber layer passes through the rollers above the cage, the wet paper is formed from the net surface to the unended blanket of the volt roll.
