Ultrasonic degas method for quartz continuous melting furnace

Abstract

The invention relates to an ultrasonic degas method for a quartz continuous melting furnace, which conducting the energy of an ultrasonic energy transducer to quartz melted slurry inside a crucible by an ultrasonic conducted rod. The ultrasonic conducted rod is provided with an A section and a B section; the A section is a conduit which is a hollow and is internally filled with high-temperature resistant silicon oil; the B section is a solid rod body; the inner end of the solid rod body of the B section is fixedly connected with the crucible into a whole; the outer end of the conduit of the A section is connected with the ultrasonic energy transducer; and a circulation cooling device is arranged outside the conduit of the A section. With special mechanical property and harmonic characteristic of ultrasound, the method is used to perform ultrasonic degas and ultrasonic bubble shredding and melting on bubbles of the quartz melted slurry in the quartz continuous melting furnace, thereby achieving the aim of degas. The degas method is simple and convenient, highly efficient and feasible; and the high-efficient degas mode means the reduction of the scrap rate, not only utilizes ore raw materials as much as possible and saves the cost for enterprises, but also reduces the treatment work for reducing wastes, and really embodies the production subject of saving energy and reducing emission.

Description

Technical field [0001] The invention relates to a production and processing technology of quartz products, in particular to an ultrasonic degassing method for a quartz continuous melting furnace. Background technique [0002] The bubble defect of the quartz glass material produced by the continuous furnace is one of the technical problems in the production of the quartz glass material. The formation of bubbles in the quartz glass material of the continuous furnace mainly comes from three aspects: 1. The gas contained in the quartz raw material; 2. The liquid contained in the quartz raw material vaporizes into a gas at a high temperature molten state; 3. Between the raw material particles The air bubbles brought in by the gaps. All the above bubbles are discharged to varying degrees in the high-temperature molten state during the production process. However, there is always a small amount of bubbles remaining in the quartz glass, entering the forming flow, forming defects in the q...

AI Technical Summary

Problems solved by technology

Reason analysis has the following factors: 1. The core rod is in the center of the crucible, which is a forming device for the production of quartz products and cannot be used for stirring

2. The space inside the tungsten crucible used in the production of quartz glass is narrow, not enough to place the stirring mechanical system

3. The quartz glass production equipment is a closed independent system, such as placing a mechanical stirring system, the airtight problem is very prominent

4. Placing a stirring mechanical system in the quartz furnace will affect the pressure balance of the molten glass in the furnace, thereby affecting the specifications and sizes of quartz glass products and other factors

5. The mechanical stirring system will affect the temperature gradient and process system of molten glass melting in the furnace

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