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Disc filter upgrades

Optimization solutions for your disc filter

    Enhance the capacity and quality of the dewatering process in your stock preparation process. All Voith and conventional disc filters can be upgraded to these new high-quality products.

    Excellent dewatering performance and availability of your disc filter

    To ensure efficient dewatering capacity, Voith has developed a product portfolio combining long service life, excellent filtration qualities, high capacities and low energy consumption. As a result of these benefits, operating costs, fresh water consumption and fiber loss can be reduced.

    Star product BaglessPlus

      Product success BaglessPlus
      We celebrate 20 years anniversary!

      Disc filter sectors that do not require maintenance-prone filter bags - unthinkable until 1998. Since its first installation in 1998 in Shotton (Great Britain), the successful product BaglessPlus from Voith has proven itself in countless disc filters. It is not without reason that since 2002 Voith has been equipping each of its sold disc filters with the filterless sectors that achieve best results and highest customer satisfaction.

      130000
      BaglessPlus sectors are installed worldwide
      90
      More than 90% of the sectors installed since 1998 are still in operation

      Product portfolio for disc filters

        BaglessPlus sectors

        Efficient dewatering without filter bag

        Thanks to the development of the BaglessPlus filter discs, previously unrivaled running times and maintenance costs are achieved. Upgrading a disc filter from conventional sectors with filter bags to BaglessPlus sectors improves both, the specific production capacity and the filtrate quality.

        Upgrades to BaglessPlus are possible for

        • all Voith disc filters and
        • GL&V, Andritz, Ahlström, Impco and Wenrui disc filters.

        Consistently high filtrate quality

        Quality of the super clear filtrate over a period of 10 years

        The consistently high filtrate quality over the entire service life of the BaglessPlus filter discs leads to a significant reduction of fiber loss and fresh water consumption. There are no restrictions on using the super-clear filtrate on the spray nozzles of the paper machine.

        Your benefits

        • Maintenance and running costs are reduced to a minimum
        • Filter disc service life of 15 years and more
        • Reliable filtrate quality over the entire operating life
        • Increase in capacity of up to 20%
        • Saves on fibers and fillers within the paper machine circuit
        • Reduction of fresh water consumption
        • Higher availability of the paper machine

        Filtrate valves

        Stable vacuum creation increases disc filter capacities

        A constant vacuum in the range 0.4 - 0.5 bar is the basis for reliable and constant operation of the disc filter. Because efficient dewatering can only be achieved with optimum vacuum, for which the filtrate valve is largely responsible. The Voith filtrate valve distinguishes between two filtrate qualities during dewatering: cloudy and clear filtrate. When used in the paper machine circuit, super clear filtrate is also produced. This distinct separation into the different filtrate qualities is made possible by the innovative design of the filtrate valve. As a result, accumulation of air is avoided and a high, stable vacuum is therefore generated.

        HiCon 2.0 Technology

        • Safe guidance of discs in solid rails; eliminates risk of crash
        • Inlet consistencies up to 2% possible
        • Significantly reduced pumping power
        • Up to 20% more throughput
        • HiCon guiding system and BaglessPlus filter discs also available as rebuild kit

        Nozzles

        The patented nozzles optimize disc filter operation

        Fast and clean removal of the fiber mat and cleaning of the filter discs are necessary for constant disc filter operation. The Voith nozzles achieve reliable knock-off of the fiber mats. This means that the pulp can be removed via the transport shafts quickly and without leaving residues. Continuous and thorough cleaning of the filter discs is achieved by the knock-off and cleaning nozzles. Any blockages can be removed during operation by turning the lever.

        V-bag filter bags

        The new generation of V-bags from Voith achieves longer service lives and therefore more reliable and stable operation of the disc filter. The integration of the Protector sheet in the filter bags offers the bags additional protection against damages caused by sharp sector edges. This substantially extends the service life and as a result the maintenance intervals of the disc filter. In addition, capacities can also be adjusted by means of special blind strips on the filter bags.

        Various filter bags are available for all disc filters from Voith and other manufacturers. If required, Voith offers filter bags tailored to customer needs:

        • Voith V-bag P: Polypropylene bag
        • Voith V-bag C: Corrugated polypropylene bag
        • Protector sheet: Can be combined with V-bag C and V-bag P

        Downloads

          • Disc filter rebuild – The Voith product range to optimize the dewatering process

            PDF
            English German

          Your contact - What can we do for you?

            Global

            Volker Niggl

            Global Product Manager

            Escher-Wyss-Straße 25 88212 Ravensburg Germany

             

            t +49 751 83 2961

            Europe, Middle East & Africa

            Adam Socha

            Escher-Wyss-Straße 25 88212 Ravensburg Germany

             

            t +49 7224 9947732

            Asia

            Bruce Sun

            China

            199 ChenFeng Rd. Kunshan Hi-Tech Industrial Development Park 215300 Kunshan, Jiangsu China

             

            t +86 512 5799 3733

            Takanori Goto

            North East Asia

            1-6, Tsukuda 2-chome, Chuo-ku 7th Floor, River City M-Square 104-0051 Tokyo Japan

             

            t +81 243 36 4768

            North America

            Nicolas Reinke

            2200 N. Roemer Road 54911 Appleton (WI) United States

             

            t +1 920 358 2398

            South America

            Flavio Pinto Granito

            Rua Friedrich von Voith, 825 02995-000 São Paulo (SP) Brazil

             

            t +55 11 3944 4813

            Successful disc filter upgrades

              Expectations exceeded at
              WEIG-Karton: significantly improved filtrate values after rebuild

              After a successful startup following the rebuild of the third-party disc filter, WEIG-Karton recorded significant improvements in filtrate values, while at the same time maintenance costs are now demonstrably lower. This was achieved by integrating BaglessPlus disc filter sectors and a new filtrate valve. BaglessPlus disc filter sectors provide increased capacity by up to 15% to 20%, while at the same time improve filtrate quality. Clear filtrate and super-clear filtrate quality have significantly exceeded customer expectations.

              Successful rebuild of Hedemora disc filter at Sappi

              Voith has successfully converted the existing Hedemora disc filter in the stock preparation unit at Sappi in Kirkniemi, Finland, to the latest BaglessPlus filter technology. As the number of discs could be reduced, the disc filter will be well prepared for future increase capacity.

              Service for your disc filter

                At Voith, the success of the customer takes center stage. Service means delivering customized service solutions and utilizing our full expertise to help you reach your goals.

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