Melting furnace for producing float glass

Abstract

The invention discloses a melting furnace for producing float glass, comprising a melting part arranged on the front section of the melting furnace, a clamping neck arranged on the mid-rear section of the melting furnace and a molding part arranged on the rear section of the melting furnace, wherein the melting part, the clamping neck and the molding part are sequentially connected, and the bath bottom surface of the melting part, the bath bottom surface of the clamping neck and the bath bottom surface of the molding part are respectively arranged on the same horizontal plane; the bath bottom of the clamping neck is provided with a retaining wall to stop partial glass fluid of the molding part from flowing back to the melting part through the clamping neck; and the height of the retaining wall is set to be 30-70 percent of the bath depth of the clamping neck, and the linear dimension of the retaining wall is equal to the bath width dimension of the clamping neck. The melting furnace for producing the float glass is simple in structure and easy to realize, can obviously reduce the energy consumption and the manufacture cost of the melting furnace, and is beneficial to the improvement of the quality of glass.

Description

technical field [0001] The invention relates to a melting furnace for producing float glass, in particular to a neck structure of a melting furnace for producing float glass. Background technique [0002] During the normal production process of the float glass melting furnace, the molten glass flow in the melting furnace forms longitudinal convection under the action of the longitudinal temperature gradient, please refer to figure 1 As shown, the melting furnace for producing float glass generally includes a melting part R' at the front part of the melting furnace, a neck K' at the middle and rear part of the melting furnace, and a forming part at the rear part of the melting furnace along the length direction. C', wherein, the region with the highest temperature in the melting part R' is called the hot spot 1', and the hot spot 1' is usually located at the midpoint along the length direction in the melting part R', and the circulation before the hot spot 1' (the hot spot 1'...

AI Technical Summary

Problems solved by technology

The bottom of most melting furnaces producing float glass in the prior art is usually set as a flat bottom structure, therefore, it is not conducive to the energy saving and consumption reduction of the melting furnace

The patent application with the notification number CN201250173Y discloses a clarification step pool bottom structure of a large float glass melting furnace, which is characterized in that the bottom of the pool between the hot spot of the melting part and the front of the neck is raised by 250mm-350mm as a whole , although this can increase the temperature of the molten glass and play a role in shallow clarification, but due to its limited height and not ideal position, its blocking effect on the backflow is not obvious, so the partial backflow of the forming part It is still easy to flow back to the melting part to be reheated, that is, the structure of the float glass melting furnace is still not conducive to the energy saving and consumption reduction of the melting furnace

The patent application with the notification number CN201301275Y discloses a pool bottom structure of a float glass melting furnace, which is characterized in that the bottom of the pool between the hot spot of the melting part and the neck is designed as a step-by-step structure or a slope structure ;Similarly, although this kind of float glass melting furnace can play the role of shallow clarification, but because of its limited height, the location is not ideal enough, therefore, the effect of energy saving and consumption reduction of the glass melting furnace of this structure is limited

Images