The utility model relates to the technical field of necked water bags of
smelting furnaces, and aims to solve the problems that the existing necked water bag of the
smelting furnace is directly attached to the inner wall of the
smelting furnace, the flowing path, speed and the like of
molten glass can be changed by a crack and an attached included angle, and the homogenization and clarification processes of the
molten glass are further influenced. The utility model provides a smelting furnace neck water bag which comprises a body, a connecting arm, a buffer plate and a sealing
assembly. The partition plate is attached to the side wall of the body. The sealing
assembly is arranged on the buffer plate in a covering manner; one end of the sealing
assembly is connected with the connecting arm; the other end of the sealing assembly is connected with the body; according to the utility model, the body can be protected through the buffer plate, abrasion during installation is reduced, and
molten glass can be prevented from flowing into a crack between the body and the inner wall of the furnace body through the sealing assembly, so that the flowing path and speed of the molten glass are avoided, and the homogenization and clarification effects of the molten glass are improved.