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China Suppliers Factory: Regenerative End Fired Glass Furnace for Continuous Melting and Low Energy Consumption
Description
If sufficiently dimensioned, the regenerators effect heat recovery of the melting end firing and thus ensure an optimal reduction of energy consumption of the glass melting process. Slightly larger regenerators than necessary are an investment for the future, reducing maintenance effort and common energy consumption increase due to ageing. Additionally this allows a furnace enlargement at the next furnace repair with reduced glass-to-glass time and costs, when reusing the basic design and lower part of the regenerator.
By designing the ports and superstructure properly very low emission values in respect of NOx and CO2 can be achieved. Since there is only one alternating flame in glass flow direction, its optimal adjustment is crucial for glass melting process. After furnace startup the first setting is usually done by experienced REFTECH® personnel for combustion optimization, ensuring an optimal melting performance from the start.
A weir wall built into the bottom of the melting end, also called barrier, and a deep refining part increase flexibility and glass quality.
The wall supports the convection in the glass bath, which improves melting. Additional electric boosting improves furnace flexibility and is advantageous in case of coloured glass production.
Additional lances or burners at the furnace sidewall can be mounted in order to lower NOx emissions by staged combustion or increase melting capacity by oxy boosting. Most common is the application of a pressurized air lance in order to lower NOx and generally improve melting. This technology is known as gg ENOx and can be applied also while furnace operation. It is most suitable to improve furnaces not showing a good performance.
Features
1
Low energy consumption
2
Low emission values
3
High flexibility in case of load change
4
High specific melting output
5
Long life
Frequently Asked Questions
Q
How do regenerators help in reducing energy consumption during glass melting?
Sufficiently dimensioned regenerators effectively recover heat from the melting end firing, which directly optimizes and reduces the overall energy consumption of the glass melting process.
Q
What are the benefits of installing slightly larger regenerators than required?
Larger regenerators serve as a future-proof investment. They reduce ongoing maintenance efforts, prevent the typical increase in energy consumption caused by system ageing, and allow for easier, cost-effective furnace enlargement during future repairs.
Q
How can NOx and CO2 emissions be minimized in this glass melting setup?
Low emission values are achieved through the proper design of ports and the superstructure. Staged combustion via additional sidewall lances/burners or the application of pressurized air lances (gg ENOx technology) also significantly lowers NOx levels.
Q
What role does a weir wall (barrier) play in the furnace bottom?
A weir wall built into the bottom of the melting end, combined with a deep refining part, supports the natural convection in the glass bath. This enhanced convection improves both the melting efficiency and the final glass quality.
Q
When is additional electric boosting recommended?
Additional electric boosting is recommended to improve overall furnace flexibility. It is particularly advantageous and effective when producing coloured glass.
Q
What is gg ENOx technology and when is it used?
gg ENOx is a pressurized air lance technology used to lower NOx emissions and improve melting. It can be applied during active furnace operation and is highly suitable for upgrading underperforming furnaces.