Vacuum box is a kind of device that uses the high pressure difference inside and outside the box to enhance dehydration. The dryness of the wet paper is about 2 ~ 3% before passing through the vacuum box, and it can reach 10 ~ 14% after passing through the vacuum box, and the paper tightness is also increased.Vacuum suction box is used for removing the white water within pulp by vacuum suction.
Application
Dewatering equipment beneath the forming fabric helps drain water from the stock and conduct it away into the whitewater system. We can offer you a comprehensive range of polyethylene and ceramic dewatering elements to suit virtually all positions and OEM machine configurations.
Advantage
1. We use high precision processing, fine processing can effectively avoid the paper disease caused by the retention of fine fibers and the pulping phenomenon, and extend the service life of the forming fabric and felt.
2. Overall surface is flat, smooth and delicate. In the process of use, water film is generated between the fabric and the dewatering element, which improves the wear resistance, greatly reduces the driving energy consumption of the fabric and the felt, improves the service life and saves electricity.
3. High efficiency of dehydration, easy control of waterline, no instant dehydration positive and negative pressure pulse, avoid pulp topping, avoid the formation of paper in the dehydration process, reduce the difference between two sides of paper, greatly improve the evenness and smoothness of paper.
Notice
We choose the number of vacuum boxaccording to the type of paper, paper machine model, copy speed etc, generally we use 7 ~ 9 boxes.
In the folder or stacked network paper machine, due to the wet paper page dryness greatly improved, the number of suction box greatly reduced, usually only use 2 ~ 5, or even 0.
In order to adapt to the changes in the dryness of the wet paper sheet, the vacuum level of the suction box should be gradually increased.
You can't just increase the vacuum to force dewatering, which would accelerates the wear of fabric, and has a negative impact on fabric's lifespan.
Shipping&Packing
Packing Details : Spray antirust oil on machine surface and cover PE film, thenpacked in wooden box in the container(including all parts)
About us
Sun Hong is a professional manufacturer and exporter that is concerned with the design, development and production of paper machine spare parts including the industrial fabrics. Products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.
Sun Hong Fabric focused on paper and pulp industry with cost-effective products and one by one design solution,help reducing energy consumption,increasing capacity while obtaining excellent ending paper property. Currently, our products are exporting to Thailand, Brazil, Egypt, Mexico and other Western countries which get good reactions from clients.
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