Line-frequency induction type dynamic drying machine with four quartz tubes

Abstract

The invention discloses a line-frequency induction type dynamic drying machine with four quartz tubes. The line-frequency induction type dynamic drying machine comprises the four quartz glass drying material tubes which are arranged obliquely, wherein an annular heating barrel is arranged at the middles of the quartz glass drying material tubes; a feeder is arranged at upper feeding ends of the quartz glass drying material tubes; a material receiving device is arranged at lower discharging ends of the quartz glass drying material tubes; the feeder is provided with a material bin; a reamer breaking and dispersing mechanism is arranged in the material bin; a vibration material conveying groove is formed at the lower end of the material bin; the material receiving device is provided with a three-stage cascade type suddenly cooling device and a material collecting device; the cascade type suddenly cooling device is provided with a material receiving hopper, a cooling barrel and an air collecting barrel; a group of cooling tubes arranged in a fence shape is arranged at the upper part of the cooling barrel; a quartz glass sleeve is sheathed outside each cooling tube; and jet flow air holes are formed in a hole wall of a suddenly cooling plate along the tangential direction. Induction heating is carried out on a heating cavity by using an excitation coil, so that materials can be heated continuously, and powder can be at a movement state all the time, so that the drying effect is good, and the cooling efficiency is high.

Description

technical field [0001] The invention relates to a preparation technology of high-purity quartz sand, in particular to a power frequency induction type dynamic dryer with four quartz tubes. Background technique [0002] High-purity quartz sand generally refers to SiO 2 Quartz powder with a content greater than 99.99% is the main raw material for quartz glass and quartz crucibles for drawing single crystal silicon, and is also widely used in industries such as solar cells, optical fibers, lasers, aerospace and national defense. Because these industries are related to the long-term development of the country and are also a necessary condition for the sustainable development of high-tech in a country, the strategic position of high-purity sand is very important. The preparation technology of high-purity sand in the world today is monopolized by a few countries such as the United States, Germany and Russia, and the export of technology and high-end products is restricted. Howeve...

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Problems solved by technology

One of the main bottlenecks for Chinese enterprises to explore the technology of extracting high-purity quartz sand from ordinary quartz ore is the lack of advanced special process equipment, and the most critical problem is to avoid secondary pollution during processing

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