FLOAT GLASS MANUFACTURING APPARATUS AND FLOAT GLASS MANUFACTURING METHOD USING THE SAME

• Main Authors: IGA GENICHI, BAN NOBUYUKI, SHIRAISHI YOSHIHIRO, YONEMORI HARUO
• Format: Patent
• Language: English; Japanese
• Published: 20.10.2016
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GLASS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

PROBLEM TO BE SOLVED: To provide a float glass manufacturing apparatus with which the number of defects is reduced.SOLUTION: A float glass manufacturing apparatus comprises: a bath containing a molten metal; a ceiling arranged above the bath and extending from an entrance wall to an exit wall; and a plurality of partition walls disposed at intervals in the flow direction of a glass ribbon flowing on the surface of the molten metal and protruding from the lower surface of the ceiling thereby partitioning a formation space enclosed by the ceiling, the bath, the entrance wall, and the exit wall. A horizontal distance between the upstream end of the first partition wall counted from the entrance wall and the upstream end of the entrance wall is 3.5 to 6.5 times a reference distance, and a vertical distance between the lower end of the first partition wall and the lower surface of the ceiling is 0.4 to 0.9 times the reference distance. On a side wall of a first space formed between the first partition wall and the entrance wall is disposed an exhaust unit to discharge a gas from the first space to outside the formation space.SELECTED DRAWING: Figure 1 【課題】欠点の数を低減したフロートガラス製造装置の提供。【解決手段】溶融金属を収容する浴槽と、前記浴槽の上方において入口壁から出口壁まで延びる天井と、前記溶融金属の液面の上を流動するガラスリボンの流動方向に間隔をおいて設けられ、前記天井の下面から突出することによって前記天井、前記浴槽、前記入口壁および前記出口壁で囲まれた成形空間を仕切る複数の仕切壁とを有し、前記入口壁から数えて１番目の仕切壁の上流端と前記入口壁の上流端との間の水平方向距離が前記基準距離の３．５倍〜６．５倍であり、前記１番目の仕切壁の下端と前記天井の下面との間の上下方向距離が前記基準距離の０．４倍〜０．９倍であり、前記１番目の仕切壁と前記入口壁との間に形成される第１の空間の側壁に、前記第１の空間から成形装置の外部にガスを排気する排気部が設けられる、フロートガラス製造装置。【選択図】図１