Abstract: The present invention relates to a high-generation TFT-LCD glass substrate production line. The production line includes a kiln, a large-flow precious metal channel, a tin bath, an annealing kiln, a cutting machine and an unloading machine connected in sequence. The present invention combines high-efficiency melting, clarification and homogenization of molten glass, ultrathin float forming and annealing process technologies of the TFT-LCD glass, which can produce the TFT-LCD glass substrates with large sizes such as 8.5 generations and 10.5/11 generations, which has the advantages of large product size, excellent product performance, coherent process procedures, high production efficiency, high productivity and the like.

Abstract: A large-flow precious metal channel is provided, which comprises a molten glass mixed-flow stirring section, at least two molten glass heating, clarifying and cooling sections are connected in parallel at one end of the molten glass mixed-flow stirring section, the other end of which is communicated with a liquid supply tank. The channel is mainly used for the clarification and homogenization of large-flow high-temperature molten glass in the production process of 8.5-generation and higher-generation TFT glass, and provides bubble-free and streak-free high-quality molten glass for subsequent float forming or overflow forming processes.

Abstract: A large melting furnace suitable for borosilicate glass. The melting furnace includes a melting area, a reinforcing area, an ascending area and a clarifying area. The melting area includes no furnace crown, a surface of molten glass in the melting area is not covered by any wall and exposed for feeding. The reinforcing area includes a first furnace crown, the first furnace crown includes a first partition wall and a second partition wall, and the reinforcing area and the melting area are separated by the first partition wall, and a lower end of the first partition wall goes deep below a surface of molten glass but is not in contact with a bottom of the melting furnace, so as to guarantee that the molten glass in the melting area and the reinforcing area is interconnected.

Abstract: A large melting furnace suitable for borosilicate glass. Which has a melting area, a reinforcing area, an ascending area and a clarifying area. The melting area and the reinforcing area are separated by a partition wall, and a lower end of the partition wall goes deep below a surface of molten glass but is not in contact with a bottom of the melting furnace, so as to guarantee that the molten glass in the two areas is interconnected. The structures of the melting area and reinforcing area can also improve the problem of boron volatilization of the borosilicate glass caused by flame melting during a melting process. The molten glass flows out from a throat of the reinforcing area, passes through the ascending area and enters the shallower clarifying area.