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ZOZEN high-efficiency and eco-friendly boilers help the non-ferrous industry realize energy saving and emission reduction

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The introduction of the non-ferrous industry

Non-ferrous metals are the basic materials for the development of national economy and are widely used in many fields such as aviation, aerospace, automobile, machinery manufacturing, electric power, communication, construction, and home appliances. In recent years, with the vigorous implementation of national environmental protection policy, the non-ferrous industry has actively promoted the upgrading of production technology and equipment, including the heating equipment - industrial boilers.

The application of industrial boilers in the non-ferrous industry

Different non-ferrous metals have different smelting and rolling processing processes, mainly including the roasting, separation, evaporation and concentration, refining, drying, and crushing processes. What’s more, the sulfuric acid countercurrent washing, slurry neutralization reaction, product synthesis reaction, product washing, product drying, and mother liquor evaporation usually use industrial boilers to ensure the reaction temperature.

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Gas-fired steam boilers

ZOZEN gas-fired steam boilers adopt the large-volume furnace which can adapt to a wide range of fuels and ensure the sufficient combustion of fuels. Its boiler thermal efficiency can be further improved with the energy-saving devices at the end of the flue gas duct. Meanwhile, they also have outstanding energy-saving and eco-friendly effects and can realize the ultra-low NOx emissions.

Recommended boilers: WNS series/SZS series
Capacity: 1-110 tph
Working pressure: 0.7-5.3 MPa
Thermal efficiency: Above 98%
Applicable fuel: natural gas, biogas, liquefied petroleum gas, blast furnace gas, diesel, etc.
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    WNS series gas-fired steam boiler

    ZOZEN WNS series horizontal internal combustion wetback gas-fired boiler has two-pass or three-pass structure according to the flue gas passes. It adopts domestically advanced corrugated furnace and threaded smoke tube to effectively improve the overall thermal efficiency of the boiler.

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    SZS series gas-fired saturated steam boiler

    ZOZEN DHX series circulating fluidized bed boiler adopts the large furnace and low flow rate design to make the coal particles stay longer in the furnace to ensure the sufficient combustion. It also adopts the bell-type hood to make the air supply balanced and prevent the materials from flowing back to the air chamber.

    Biomass-fired steam boilers

    ZOZEN biomass-fired boilers optimize the feeding hopper, grate width and length, rotary speed of grate gear reducer, secondary air place and direction according to different biomass fuel characteristics in order to achieve high combustion efficiency.

    Recommended boilers: DZL series/SZL series
    Capacity: 2-35 tph
    Working pressure: 1-2.5 MPa
    Thermal efficiency: Above 88%
    Applicable fuel: biomass pellets, wood chips, corncobs, saw dust, etc.
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    DZL series biomass-fired steam boiler

    ZOZEN DZL series biomass-fired steam boiler adopts the specially-designed three-pass fire and water tube structure, which completely solves the cracking problem of fire tube plates.

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    SZL series biomass-fired steam boiler

    ZOZEN SZL series biomass-fired steam boiler reasonably arranges the furnace arch, furnace wall and furnace heating surface, and adopts the separate air chambers to ensure the complete combustion of different biomass fuels.

    Coal-fired circulating fluidized bed steam boiler

    ZOZEN circulating fluidized bed boilers adopt the low-temperature combustion technology, adjust the ratio of primary air to secondary air, optimize the secondary air layout and reasonably design the furnace heating surface to control the bed temperature within 860-880 ℃ and effectively make the NOx emission less than 100 mg/Nm³.

    Recommended boilers: DHX series
    Capacity: 35-75 tph
    Working pressure: 1.25-5.3 MPa
    Thermal efficiency: Above 89%
    Applicable fuel: coal, gangue, biomass, waste, sludge
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    DHX series coal-fired circulating fluidized bed steam boiler

    ZOZEN DHX series circulating fluidized bed boiler adopts the large furnace and low flow rate design to make the coal particles stay longer in the furnace to ensure the sufficient combustion. It also adopts the bell-type hood to make the air supply balanced and prevent the materials from flowing back to the air chamber.

    Thermal oil heater

    ZOZEN thermal oil heaters adopt the special technology to make the boilers have high efficiency, good energy-saving performance and short oil dewatering period. ZOZEN can also customize the flue gas waste heat recovery systems to maximize the heat utilization rate.

    Recommended boilers: YLW series
    Capacity: 1400-29000 KW
    Working pressure: 0.8-1 MPa
    Thermal efficiency: Above 85%
    Applicable fuel: bituminous coal, anthracite, biomass pellets
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    YLW series coal/biomass-fired horizontal thermal oil heater

    ZOZEN YLW series thermal oil heater is pre-assembled horizontal square-coil type chain grate boiler. It adopts the chain grate for mechanical coal feeding, adopts the forced and induced draft fans for mechanical ventilation and adopts the discharger for mechanical slag discharge.

    ZOZEN boiler projects in the non-ferrous industry

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      Jiangxi Copper 40 tph SZS series condensing gas-fired steam boiler project

      • Medium: Steam
        Capacity: 40 tph
      • Location: Guixi Jiangxi
        Equipment: 2 sets of SZS40-1.25-Q
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      Ganfeng Lithium 30-50 tph DHX series circulating fluidized bed steam boiler project

      • Medium: Steam
        Capacity: 35 tph, 50tph
      • Location: Xinyu, Jiangxi
        Equipment: DHX35-2.5-P, DHX50-2.5-P
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