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Preparation method for producing large-diameter quartz tube by multi-stage continuous melting integration method

An integrated, large-diameter technology, applied in glass manufacturing equipment, manufacturing tools, glass furnace equipment, etc., can solve the problems of multiple pickling of quartz powder, impurity detection, etc., to reduce production links, reduce pollution, and improve labor efficiency Effect

Active Publication Date: 2021-03-19
东海县奥兰石英科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the defects in the prior art that the treatment of quartz powder requires multiple pickling and impurity detection, and to provide a preparation method for producing large-diameter quartz tubes by multi-stage continuous fusion integration

Method used

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Embodiment

[0022] A preparation method for producing a large-diameter quartz tube by a multi-stage continuous melting integration method, comprising the following steps:

[0023] S1. The quartz powder is baked at 1500-1700°C in the first layer continuous furnace to achieve the non-melting heat temperature range of the quartz powder, and to eliminate the escape of the quartz powder in the hot state through the reflux of hydrogen gas between the crystal lattices of the quartz powder. Various gas impurities produced and formed; the first layer of continuous melting furnace adopts ordinary continuous melting furnace, and quartz powder is put into high-temperature baking according to the process flow; the quartz powder in the first layer of continuous melting furnace is automatically fed into the second layer of continuous melting furnace. There is no physical connection between the first-tier continuous melting furnace and the second-tier continuous melting furnace; the temperature of this st...

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Abstract

The invention discloses a preparation method for producing a large-diameter quartz tube by a multi-stage continuous melting integration method. According to the preparation method, utilizes a four-stage continuous melting device is innovatively utilized, quartz powder is directly added into a continuous melting furnace for production; various metal impurities and nonmetal impurities contained in the quartz powder are effectively removed through three-stage high-temperature heating; and the purpose of removing impurities is achieved through high-temperature gasification. The method overcomes the serious defects of many processes, few removed impurities and various processes in the prior art, reduces the production links, achieves the optimal effects of one-time impurity treatment, great reduction of environmental pollution, improvement of labor efficiency and one-time molding production, and reaches the leading level in China.

Description

technical field [0001] The invention relates to a preparation method for producing a large-diameter quartz tube by a multi-stage continuous melting integration technology. Background technique [0002] At present, in the quartz glass industry, the production of quartz tubes with different specifications of Φ3-480mm needs to go through many production links such as pickling of quartz powder, purification, drying, medium and high magnetic iron removal, purity testing, melting in continuous furnace, forming traction, etc. Many processes, high processing costs, low production efficiency and other issues. [0003] The method for processing quartz powder in the prior art usually includes the following steps: First, after the quartz rough is mechanically crushed, the quartz block is soaked in strong acids such as hydrofluoric acid and hydrochloric acid for 96 hours to remove surface impurities of the quartz block ; Next, dry and mechanically crush and sieve to 80-120 mesh; soak 80...

Claims

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Application Information

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IPC IPC(8): C03B20/00C03B5/16C03B5/235
CPCC03B20/00C03B5/16C03B5/235
Inventor 孙启兵
Owner 东海县奥兰石英科技有限公司