Quartz continuous melting furnace capable of reducing pipe wall deflection

Abstract

The quartz continuous melting furnace comprises a furnace body; a crucible is fixedly installed in the furnace body, a first heating cavity is fixedly installed outside the crucible; a discharging cavity is fixedly installed at the bottom of the crucible; a second heating cavity is fixedly installed outside the discharging cavity; temperature sensors are fixedly mounted in the first heating cavityand the second heating cavity; a furnace cover is fixedly mounted at the top of the furnace body; a feeding pipe is fixedly mounted at the top of the furnace cover; a clamping seat is fixedly mountedon one side of the feeding pipe; and a core rod is fixedly mounted in the clamping seat. The quartz continuous melting furnace capable of reducing pipe wall deflection is simple and reasonable in structure and novel in design; and through multiple heating of the first heating cavity and the second heating cavity and arrangement of the temperature sensors in the first heating cavity and the secondheating cavity, the pipe wall deflection is reduced; quartz sand in the crucible is uniformly heated and melted, so that the problem of non-uniform heating caused by different distances between the quartz melt at a discharge opening and a heater is solved, and the viscosity uniformity of the quartz sand is ensured.

Description

technical field [0001] The invention relates to the technical field of quartz continuous melting furnace production equipment, in particular to a quartz continuous melting furnace capable of reducing the partial wall of pipes. Background technique [0002] At present, various types of electric heating continuous furnaces used in the production of quartz glass tubes in China adopt fixed crucibles, and the heating element made of tungsten material around the crucible has in common that any cross section of the heating element is equal, which shows that in production During the process, the heat emitted by the heating element is basically constant in the longitudinal distribution, and the longitudinal temperature of the crucible cannot be adjusted. The production process of the quartz glass tube in the crucible and the crucible outlet is: preheating zone-melting zone-exhaust zone-forming zone. [0003] An important factor in the quality of the quartz tube is the degree of wall...

AI Technical Summary

Problems solved by technology

There is a high temperature of more than 2200 degrees in the tungsten pot. The thermal expansion coefficient of the tungsten-molybdenum material of the core rod will be deformed due to high temperature, and the instability caused by the downward flow of the quartz sand melt will cause the core rod to shake, and it is easy to produce pipes. Partial wall of the pipe, so we improve this and propose a quartz continuous furnace that can reduce the partial wall of the pipe

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