Low-Temperature Belt Dryer

    DLT Series

    DLT Low-Temperature Sludge Dryer - Focused on the USA

    Centrisys engineers, consultants, and industry experts researched current low-temperature dryers. The goal was to identify critical areas for improvement. As a result, we have successfully engineered a simplified and operator-friendly dryer that creates operational efficiencies and maximizes uptime, all within a compact footprint. Made in the USA and meets Build America, Buy America (BABA) requirements.

    Centrisys DLT Low Temperature Belt Dryer

    The DLT is a simple, closed-loop dryer using hot water as its heat source. The low-profile design integrates modular heat exchangers into the dryer system. The DLT can be engineered using a dedicated hot water boiler for natural gas or biogas. Waste heat from pyrolysis or CHP cooling water can be used to offset energy requirements.

    Drivers for Low-Temperature Sludge Dryers

    • Generate Class A Biosolids - dry sludge at a temperature to destroy pathogens
    • Reduce sludge volume
    • Reduce costs for disposal, landfill, and transportation
    • PFAS regulations, minimize risk by reducing volume

    Product

    • Dried sludge with a dryness level greater than 90% solids
    • Reduced biosolids weight up to +80%
    • Meets Class A requirements
    • Optimized particle size creates minimal dust; allows for land application without further processing

    Dryer Biosolids

    Why Choose the Centrisys DLT Low-Temperature Dryer?

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    USA Parts and Service. Centrisys DLT is designed, built, and FOCUSED on USA plants
    • The DLTs modular sections are designed to accomodate USA sourced, off-the-shelf parts and components
    • All parts and components are manufactured, sourced, and distributed in the USA
    • All parts and components are stocked at the Centrisys parts distribution facility in Kenosha, Wisconsin
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    Smallest Footprint. Increase Flexibility for Plant Design and Expansion.
    • A low-profile feeder design minimizes installation requirements
    • The heat recovery system eliminates a single point of failure
    • The installation footprint is reduced because of the heat recovery system design
    • The modular design allows for less complex dryer sizing to meet plant capacity requirements
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    Enhanced Safety. Designed for Plant Operators.
    • Designed to meet NFPA 820/654 standards
    • The DLT is insulated to regulate and maintain low temperatures on the outer surface
    • All the motor parts and instrumentation meet Class II explosion proof requirements
    • An automated sprinkler system installed for safety
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    Simple. Engineered to Create Operational Efficiencies.
    • No confined spaces; operators do not need to crawl inside the dryer box for maintenance
    • Internal dryer parts are accessible and removable from outside the module
    • The compact pull-out heat recovery exchangers are designed for a “swap-in-place” exchange
    • The main heat exchangers are a two-piece, split-height panel design
    • All doors are hinged, no special tools required
    • An optional lift crane assembly to move heavier parts
    • Operates 24/7 with minimal operator attention

    More Uptime. Less Maintenance. Fewer Truckloads.

    Problem: Typical low-temp dryer designs have heat recovery systems that are:

    • Large
    • Stand-alone
    • A single point of failure
    • Located outside the dryer system

    During cleaning, the entire dryer must stop operation to complete this maintenance task.

    Solution: The DLT is engineered with a set of heat recovery exchangers on each module. If one of the heat exchangers needs cleaning or maintenance, it can be conveniently isolated, removed, and substituted with a spare. The DLTs modular design creates maintenance and operational efficiencies.

    Centrisys/CNP manufacturing sourcing meets BABA requirements.
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    Available Literature

    Equipment

    DLT Series

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    Equipment

    DLT Series Innovation Timeline

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    Company

    Advanced Biosolids Treatment

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    Company

    Centrisys/CNP Company Backgrounder

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