HEATING FURNACE CAPABLE OF MINIMIZING CONSUMPTION OF A FUEL BY MINIMIZING A GAP BETWEEN AN EXTRACTING DOOR AND AN EXTRACTING UNIT AND BY REDUCING AN ENERGY LOSS

摘要

PURPOSE: A heating furnace is provided to prevent a leakage of internal heat or inflow of air through a gap between an extracting door and an extracting unit by contacting the extracting door to the extracting unit when the extracting door is opened or is closed.;CONSTITUTION: A heating furnace comprises a body(10), an extracting door(20), and an extracting door driving unit(30). The body includes an extracting stage(12) including an extracting hole unit(11) extracting a sheet(S). The extracting door opens and closes the extracting hole unit and is slantly arranged to adhere to the extracting unit with a self load. The extracting door driving unit vertically moves the extracting door.;COPYRIGHT KIPO 2013