| 摘要 |
The present invention relates to an apparatus for recycling combustion air in a heating furnace which includes an absorption unit absorbing combustion air in a heating furnace; a filter unit filtering the combustion air absorbed by the absorption unit; a ventilation unit absorbing the filtered combustion air to supply the filtered combustion air to be mixed with outside air; and a discharge unit guiding the combustion air filtered from the ventilation unit to a gas duct from which the outside air is introduced. Air preheated in a predetermined temperature can be added inside the heating furnace, and the amount of NOx and SOx in gas combusted in the heating furnace is remarkably reduced, thereby preventing environmental pollution. |
