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ZOZEN steam boilers for paper industry



Current situation of paper industry

The traditional paper industry is one of the major industries that emit pollution and is also a major energy consumer. In recent years, small paper mills with backward equipment and high energy consumption have been gradually banned or eliminated. Energy conservation and consumption reduction have become one of the main ways for various paper mills to increase productivity and economic efficiency.



Energy-efficient boilers for paper industry

Industrial boilers are the main driving force of the paper industry, providing sufficient steam support for the production process of paper plant operations, such as pulp heating and dissolution, pressing and drying. The main energy consumed by the paper industry is steam. Whether a steam boiler is energy efficient or not has a direct correlation with the economic benefits of the paper industry.



Coal-fired steam boiler:

ZOZEN coal-fired steam boiler has the unique grate to ensure smooth running of the grate; the combustion air system (stoke) adopts independent compartment and scientific sealing structure; reasonable air conditioning device improves combustion efficiency.

Thermal capacity: 2 -75 tph
Working pressure: 1- 5.4 Mpa
Thermal efficiency: Above 82%
Recommended boilers: SZL series/DHL series
Applicable fuel: Bituminous coal, anthracite, lignite, lean coal, etc.
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    SZL series chain grate steam boiler

    SZL series coal-fired steam boiler is package or shop-assembled water tube boiler with double steam drum and chain grate stoker structure.

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    DHL series coal-fired steam boiler

    DHL series coal-fired steam boiler is field assembled boiler, it uses a piping system as the frame of the entire boiler, and it bears the full load of the boiler, which makes a non-framework boiler.

    Gas-fired steam boiler:

    ZOZEN gas-fired steam boiler adopts a large-volume furnace to ensure sufficient fuel combustion, and it has sufficient steam storage space and heating area to efficiently generate high thermal energy and high quality steam. Meanwhile, the energy saving and environmental protection effects of the boiler are remarkable, and the emission of NOx is ultra low.

    Thermal capacity: 1 - 110 tph
    Working pressure: 0.7- 5.4 Mpa
    Thermal efficiency: Above 98%
    Recommended boilers: WNS series/SZS series
    Applicable fuel: Natural gas, biogas, liquefied petroleum gas, blast furnace gas, etc.
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    WNS series fire tube steam boiler

    WNS gas-fired boilers are wetback fire-tube boilers with a two-pass or three-pass design. They use threaded flue tubes for heat transfer and install economizer and condenser on the tail, managing to achieve a thermal efficiency up to 98%.

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    SZS series water tube steam boiler

    SZS gas-fired steam boiler is "D" type chamber structure. Furnace is on right side and convection tube bundle is on the left. The proper is fixed on the basement by middle and both end flexible supports and make the boiler to expand horizontally to sideways.

    Biomass-fired steam boiler:

    ZOZEN biomass-fired boiler has wide fuel applicability, and ZOZEN rationally designs relevant structures according to different fuel characteristics to ensure efficient and stable operation of the boiler; ZOZEN has solved the problems of ashing, coking, abrasion, furnace arch burning down, hopper catching fire, etc.

    Thermal capacity: 2 -75 tph
    Working pressure: 0.7- 5.4 Mpa
    Thermal efficiency: Above 88%
    Recommended boilers: DZL series/SZL series
    Applicable fuel: Biomass particles, palm shell, coconut shell, sawdust, straw, corn cob, rice husk, etc.
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    SZL series biomass-fired steam boiler

    SZL series biomass-fired steam boiler is package or shop-assembled water tube boiler with double steam drums and chain grate stoker structure.

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    DZL series biomass-fired steam boiler

    DZL series biomass-fired packaged boilers are horizontal three-pass water & fire tube boilers with a chain grate stoker structure.




    ZOZEN comprehensive service system escorts for you
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    Customized design

    ZOZEN has a strong boiler R&D team and has built a complete R&D system. ZOZEN can design a suitable boiler system solution according to your actual needs.

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    Advanced technology

    ZOZEN owns over 50 self-developed patented equipment, achieving blanking digitization, automation of welding and assembly moulding, and strictly controls the product quality.

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    Professional services

    ZOZEN has professional after-sales service teams to provide technical guidance for the entire installation process and free training for operation and maintenance personnel.





    Successful Cases - ZOZEN BOILER is favored by various paper mills

    • 中正锅炉

      15 tph coal-fired water tube boilers for paper industry

      • Medium: Steam
        Capacity: 15 tph
      • Location: Thailand
        Equipment: SZL15-1.25-AII
    • 中正锅炉

      15 tph SZL biomass-fired water tube boiler project for paper industry

      • Medium: Steam
        Capacity: 15 tph
      • Location: Papua New Guinea
        Equipment: SZL15-1.25-M