| 摘要 |
A furnace (10) and method for heating conveyed glass sheets within a housing (12) includes forced convection heaters (24) spaced along the direction of conveyance both below and above a roll conveyor (20). Each forced convection heater (24) includes a gas burner assembly (32) generally adjacent one of the housing side walls and has an outlet (34) through which products of combustion are supplied to the housing heating chamber (18) at a location intermediate its side walls. A hot gas distributor (38) of each forced convection heater (24) includes an inlet (40) that is spaced from the outlet (34) of the gas burner assembly (32), and the hot gas distributor (38) has a suction fan (42) for drawing in heated products of combustion together with spent recirculating gas in the heating chamber (18) for mixing to provide heated gas that is distributed to the conveyed glass sheets.
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