Leave Your Message
Products Categories
Featured Products
Fused Cast 33 ＃ AZS Block (RTK-AZS33)

Fused Cast 33 ＃ AZS Block (RTK-AZS33)
Fused Cast α-β-Alumina Block(RTK-M)

Fused Cast α-β-Alumina Block(RTK-M)
Fused Cast Zirconia Block (RTK-Z910)

Fused Cast Zirconia Block (RTK-Z910)
RTK-High Quality Monolithic Refractory

RTK-High Quality Monolithic Refractory
Fused Cast Mullite Block (RTK-FM/ZM)

Fused Cast Mullite Block (RTK-FM/ZM)
Fused Cast Zirconia Block (RTK-Z9540)

Fused Cast Zirconia Block (RTK-Z9540)
Fused Cast 41＃AZS Block ( RTK-AZS41)

Fused Cast 41＃AZS Block ( RTK-AZS41)
Fused Cast 36 ＃ AZS Block(RTK-AZS36)

Fused Cast 36 ＃ AZS Block(RTK-AZS36)
Fused Cast β-Alumina Block (RTK-H)

Fused Cast β-Alumina Block (RTK-H)
Fused Cast α- Alumina Block (RTK-A)

Fused Cast α- Alumina Block (RTK-A)
0102030405
Oxy-fuel-Firing-Glass-Furnace.jpg

Energy Efficient Oxy-Fuel Glass Furnace - High Temperature Solutions from China Suppliers & Factory

Oxyfuel furnaces are advanced cross-fired melting furnaces designed to operate with a combination of natural gas and oxygen. One of the primary benefits of using oxyfuel technology is its significant reduction in energy consumption. By minimizing the use of nitrogen during combustion, oxyfuel furnaces achieve energy savings of approximately 5% to 10% compared to traditional cross-fired or end-fired furnaces. When compared to recuperative furnaces, the energy consumption is even lower, with reductions of 25% to 40%. As a leading factory and supplier in China, we specialize in providing high-efficiency oxyfuel furnaces that optimize energy use and enhance melting processes for various industrial applications
    Contact us
    Product Detail

    Description

    REFTECH oxyfuel furnaces are specially designed for the particular characteristics of firing a furnace with fuel and oxygen. Especially the reduced flue gas volume requires a modification of the superstructure design. If flat flame burners are used, the arch has to be kept relatively low, otherwise it will become too cold and this will lead to rat holes.

    For longer life, the exhaust can be placed rather in direction of the middle of the furnace or even near the throat thus ensuring an adequate heating in batch charging area due to burners in this area and reducing carry-over (dust). Too high flue gas velocities in exhaust and subsequent piping can lead to difficulties in furnace pressure control and can even lead to high furnace pressure due to insufficient flue gas flow rate.

    Cold spots would lead to damages due to the infiltration of alkalis which cause burnouts in the arch, thus leading to reduced furnace life. To avoid such problems the REFTECH® oxyfuel furnaces are therefore adequately insulated and sealed. In general oxyfuel furnaces are used for a melting output of 50 – 400 t/d, in some special cases as small as 2 t/d specialty glass. The maximum furnace size is approximately the same as for regenerative cross-fired furnaces, i.e. 750 t/d.

    Features

    Low investment costs for flue gas equipment due to low flue gas volume
    Low energy consumption
    Higher melting surface load
    Reduced NOx emission
    High glass quality
    Low investment costs for refractories
    Easily adjustable temperature profile due to lateral arrangement of burners
    Shorter time from glass to glass

    Frequently Asked Questions

    What is the typical melting output of REFTECH oxyfuel furnaces?
    In general, REFTECH oxyfuel furnaces are designed for a melting output ranging from 50 to 400 t/d. For specialty glass applications, they can be designed as small as 2 t/d, while the maximum furnace size can reach approximately 750 t/d.
    Why does the superstructure design of an oxyfuel furnace need modification?
    The modification is required because of the reduced flue gas volume characteristic of firing a furnace with fuel and oxygen. For instance, if flat flame burners are used, the arch must be kept relatively low to prevent it from becoming too cold, which could lead to rat holes.
    How does REFTECH address the issue of cold spots and alkali infiltration?
    Cold spots can lead to damage due to the infiltration of alkalis, causing burnouts in the arch and reducing the overall life of the furnace. To prevent this, REFTECH® oxyfuel furnaces are adequately insulated and sealed.
    What is the optimal placement of the exhaust in these furnaces?
    To ensure a longer service life, the exhaust can be placed toward the middle of the furnace or near the throat. This configuration guarantees adequate heating in the batch charging area via local burners and reduces dust carry-over.
    What are the consequences of high flue gas velocities in the exhaust?
    Excessively high flue gas velocities in the exhaust and subsequent piping can cause difficulties in controlling furnace pressure. This can even result in high furnace pressure due to an insufficient flue gas flow rate.
    What are the primary economic benefits of using REFTECH oxyfuel furnaces?
    Key economic benefits include low investment costs for flue gas equipment (due to reduced flue gas volume), low investment costs for refractories, low energy consumption, and a shorter time required from glass to glass.

    Leave Your Message