Pulping

Pulping Systems

The first operation to be carried out is that of pulping the fibrous material coming from virgin fibres, waste paper, or non-wood fibres in a tank that contains water, in order to separate the fibrous material into fibres at their elementary state. An impeller of various types and shapes, equipped with blades and placed on the bottom of the tank, creates a whirling motion that causes the used raw materials to flake off. The final product of this process are fibres in water suspension at about 5% consistency.

Toscotec Pulping Systems offer the possibility of selecting an optimal pulping technology according to the type of fiber used, the production, and the contaminant present in the fiber.

Medium Density Pulping includes the VP medium consistency pulper, which works discontinuously (aka “batch mode”) between 7% and 9% of cellulose, waste paper and non-wood fibres.

    Low Density Pulping includes the low consistency TM pulper, which works continuously between 5% and 6% of waste paper with a high level of contaminants or rewinder trims.

    Benefits:

    • Having at its disposal both batch and continuous pulpers, Toscotec can select the best technical solution to optimize the quality of the pulped fiber and reduce energy consumption to a minimum.
    • Toscotec pulper rotors are designed to optimize the pulping process, maximizing the pumping effect in the discontinuous medium density pulpers, or maintaining the right vorticity to optimize the cleaning process in continuous pulp.

    Pulping System

    Medium Density Pulper

    TT VP. Suitable to work both with virgin pulp, broke, recycled paper and non-wood fibers, the Toscotec Medium Density pulper TT VP is designed to perform an extremely efficient and low energy slushing in discontinuous mode.

    Low Density Pulper

    TT TM. Optimized to work with heavily contaminated recycled paper or with rewinder trims, the Toscotec Low Density Pulper TT TM is designed to perform an extremely efficient and low energy slushing in continuous mode and to remove rejects without breaking them.

    Ragger

    TT RG. For the proper performance of a continuous pulper working with recycled paper (Toscotec Low Density Pulper), a cleaning unit such as the ragger TT RG is required to be installed.

    Rotating Screen

    TT RS. The Toscotec Rotating Screen TT RS is used in recycled paper stock preparation plants to de-water the coarse rejects coming from upstream cleaning equipment.

    Broke Pulper

    TT MBP. The Toscotec Broke Pulper TT MBP is designed to be installed under machine both in tissue, paper and board applications.

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    Broke Pulper

    TT MBP. The Toscotec Broke Pulper TT MBP is designed to be installed under machine both in tissue, paper and board applications.

    Rotating Screen

    TT RS. The Toscotec Rotating Screen TT RS is used in recycled paper stock preparation plants to de-water the coarse rejects coming from upstream cleaning equipment.

    Ragger

    TT RG. For the proper performance of a continuous pulper working with recycled paper (Toscotec Low Density Pulper), a cleaning unit such as the ragger TT RG is required to be installed.

    Low Density Pulper

    TT TM. Optimized to work with heavily contaminated recycled paper or with rewinder trims, the Toscotec Low Density Pulper TT TM is designed to perform an extremely efficient and low energy slushing in continuous mode and to remove rejects without breaking them.

    Medium Density Pulper

    TT VP. Suitable to work both with virgin pulp, broke, recycled paper and non-wood fibers, the Toscotec Medium Density pulper TT VP is designed to perform an extremely efficient and low energy slushing in discontinuous mode.

    Turbo Separator

    TT TMC. The Toscotec Turboseparator TT TMC is installed in recycled paper stock preparation lines as primary screen to treat the accept stream of the Toscotec Low Density Pulper.

    Vortiscreen 3 Series

    TT VS-3. The Toscotec Vortiscreen TT VS-3 can be installed as the only coarse screen in converting broke lines or as the last tail screening stage for the treatment of the rejects coming from drilled Toscotec Superscreens in recycled paper processing lines.

    Vortiscreen 1 Series

    TT VS-1. The Toscotec Vortiscreen TT VS-1 is used in recycled paper stock preparation plants mainly for the detrashing of the continuous TM Pulpers and as a dumping machine of high consistency batch pulpers.

    Superscreen

    TT SS. The Toscotec Superscreen TT SS is a horizontal screen with basket and rotor designed to be installed as a coarse or fine screen in recycled paper stock preparation plants. It is optimal to treat stock up to a working consistency of 5%.

    High Density Cleaner

    TT HDC. Engineered to work both with virgin pulp and recycled paper, the Toscotec High Density Cleaner TT HDC is designed to reliably remove heavier than fiber contaminants, suspended in consistencies up to 6%, directly after the pulper.

    Thickening Screw

    TT CA. The Toscotec Thickening Screw TT CA is an inclined screw thickener; it can be configured as a Single Unit or as Combined Units (up to 3 Units on a single stand and with only one feeding headbox) for higher capacity and reduced footprint.

    Wire Washer

    TT CW. The Toscotec Wire Washer TT CW is used to obtain an efficient removal of ashes, inks, glues, and fines by means of low consistency stock washing and consequent thickening.

    Short Approach Flow System

    TT SAF. Toscotec Short Approach Flow TT SAF, patented by Toscotec since 2012, allows every mill, new or existing one, to reduce energy consumptions and installation space, without compromises in terms of performances.

    Vibrating Screen

    TT V. The Toscotec Vibrating Screen TT V can be used as final stage for rejects de-watering after other screens such as vortiscreens, superscreens and pressure screens.

    Pressure Screen

    TT AFS. The Toscotec Pressure Screen TT AFS is designed to be installed in the approach flow system as final protection of the headbox.

    Environment

    Dust Removal System, Mist Removal System, Heating & Ventilation System

    Hoods & Air system

    Toscotec customizes the design of its TT Hood based on the customer’s needs and the overall drying configuration of the tissue machine, including the Steel Yankee Dryer.

    Steam and Condensate System

    As an auxiliary system of the Steel Yankee Dryer, Toscotec’s Steam and Condensate System is optimized to operate in association with TT SYD to allow it to achieve its maximum drying capacity.

    Steel Yankee Dryer

    Toscotec is both the inventor and the leading supplier of Steel Yankee Dryers worldwide.

    Press

    Paper machine press section represent a key area for rebuilds to improve quality of the paper and energy savings.

    Headbox

    TT Headbox delivers optimal sheet formation, because its design is custom-made based on the specific product needs of the customer. It operates at a high consistency, thereby reducing energy consumption.

    TADVISION® Air System

    Toscotec’s TADVISION® Air System is composed of two hoods, a lower blowing hood and an upper suction hood, installed below and above the TAD Drum section of the TADVISION® machine.

    TADVISION® Drums

    TADVISION® features a unique outflow serpentine design in its TAD section, which is composed of a multiple number of TAD drums (configuration according to production needs).

    Tail Feeding System

    The perfect tool for new machines or to improve the efficiency and safety of an existing line.

    Drying Section

    The most famous well-proven TT SteelDryer and drive concepts.

    Press Section

    Tailored press technologies, inlcuding Shoe Press, according to the applications.

    Forming Section

    State-of-the-art drainage equipment is properly configured on a Toscotec fourdrinier to reach the best quality results.

    Headbox

    Toscotec’s headbox line can satisfy all customer needs in terms of production, quality and specific application.

    Toscotec is a Voith company