The practical experience of cold repair and transformation of annealing kiln in float glass production line to improve the annealing capacity was described..The cooling structure of single down-flow is transformed into that of double down-flow in zone A without increasing the floor space length of the annealing kiln.The length of the air duct in the D/F zone is increased and the structure of the blower nozzle is transformed.The cooling section F4 is installed in the finished product cutting area,and the air inlet in zone F is transformed into outdoor air intake.The cooling capacity of the annealing kiln is improved and the costs due to power consumption is reduced.The production capacity of ultra-thick differentiated products has also been improved,achieving the goal of reducing production costs and improving profitability.
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