SU1178698A1 - Glassmaking furnace - Google Patents

Abstract

GLASS-MAKED OVEN, containing the cpezv HeHHbie duct cooking and working pools, between which there is an intermediate chamber with electrodes, characterized in that, in order to improve the thermal homogeneity of the glass melt entering the generation, the electrodes in the intermediate chamber are installed above the bottom of the chamber at a distance of 1 / 5 1/3 of its depth with an interval of 0.5-1.5 width of the electrode.

Description

1.1 The invention relates to the construction industry, and building materials, in particular, to glass melting furnaces for cooking crystal. The aim of the invention is to increase the thermal homogeneity of the glass mass entering the production. FIG. 1 shows a glass furnace, a longitudinal section; in fig. 2 - oven, plan; in fig. 3 — intermediate chamber / furnace on an enlarged scale with curves of the temperature distribution of the glass melt before and after the installation of the electrodes, longitudinal section; in fig. 4 shows an intermediate zone of the furnace with temperature distribution curves of the glass mass over the width of the zone and after the installation of the electrodes, section A-A in FIG. 3.. A glass melting furnace for boiling pig metal (Fig. 1 and 2) consists of three working pools 4, an intermediate chamber 2 in which electrodes 3, a channel 4 and a cooking basin 5 are installed. In the drawing (Fig. 3 and 4) the distributions are shown temperatures 6 and 7 before and after installing the electrodes, respectively. Tin dioxide electrodes 3 .200x200x100 mm in size with a pool depth of 800 mm are installed in the side walls at a distance of 200 mm from the furnace bottom, which corresponds to 1/4 of the pool depth, the distance between the reflector / TU.

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Fig.8 dam 100 mm, which corresponds to the width of the electrode, the ratio of the distance between the electrodes to the electrode ctrinum is 1. Electric heating leads to heating of the near-wall cold glass mass, as in this case the electric current passes through the glass mass with different electrical resistance. (cold glass mass has more resistance than it is very hot) and in areas with greater resistance to it, more energy is released. By regulating the amount of incoming electricity, it is possible to achieve the equalization of the glass melt temperature both in depth and in width of the intermediate zone. Temperature charts in the intermediate zone when using electric heating and optimal positioning of the electrodes at a distance of 1 / 5-1 / 3 of the pool depth above the furnace bottom and at intervals of 0.5 1, 5 electrode widths are shown in FIG. 3 and 4, curve 7 in the longitudinal and transverse sections along the intermediate zone of the furnace. Such an arrangement of electrodes allows one to obtain a glass melt entering the working pools with an insignificant temperature difference and prevent its refractory products from clogging up.

Claims (1)

GLASS FURNACE, containing a cooking and working pools connected by a duct, between which an intermediate chamber with electrodes is located, characterized in that, in order to increase the thermal homogeneity of the glass melt entering the production, the electrodes in the intermediate chamber are installed above the chamber bottom at a distance of 1 / 5-1 / 3 of its depth with an interval of 0.5-1.5 of the width of the electrode. m 05 C0 00 .1178698