News about the development of Glass Refractory Industy in China

Aug 28, 2017 9:39 am / Posted by Eric Lee on Blogger of Google, just Follow @Eric Lee on Twitter or Praise @Eric Lee on Facebook or Plus @Eric Lee on Google+

The development of refractories has three main drivers: to maintain and improve the quality of the glass; the economic requirements of the Glass Furnace to make the kiln longer operating cycle and the use of pure oxygen combustion system after the impact and impact.

The current changes in the electronics industry and the computer industry can be interpreted as months or weeks, and when it comes to the development and application of refractory materials in the glass industry, it can easily be interpreted as five or ten years. According to this concept of time, we will review and discuss changes that have taken place in the "future" (more conservative pace) in the "current".

Glass Industry Refractory Materials

There are three main drivers for the change and development of refractory materials. The first is the need for glass manufacturers to maintain at least to maintain the quality of the glass. The second is the economic requirements of the glass furnace to make the kiln run longer, and the third is the pure oxygen combustion system to bring the impact and impact. These three requirements usually determine the use of improved refractory materials in the kiln. These drivers also enable glass manufacturers to use improved refractory products during kiln maintenance and use and new technologies for extensive maintenance during the run cycle.

The molten cast alumina brick has been used in this part of the melting tank to build its application, mainly in the melting of high quality glass pure oxygen burning furnace furnace has been applied. Prior to the advent of pure oxygen combustion technology, only beta-alumina bricks were used to melt the superstructure of the pond, and no molten cast alumina bricks were used on top of the melting tank. Now, fermented cast products, whether beta-alumina or alpha-beta alumina, are used in the production of color television (screens and cones), float glass, and borosilicate glass in part or all of the furnace on. The molten cast AZS brick can generally be used at 1600 ° C or 1650 ° C (depending on the glass product), while the furnace with a fused alumina brick can be successfully operated at 1700 ° C. This creates better conditions and greater flexibility for glass manufacturers in the production of refractory glass.

Glass Industry Refractory Materials

For many years, molten cast AZS furnaces have been successfully tested for cooling and reheating so that they can use multiple operating cycles. Now a little experience has been gained in the successful implementation of the fused alumina furnace top cooling and reheating, when they use two or more operating cycles to show more economically viable vitality. The results of the fused alumina furnace tops observed during use (thermal observation and shutdown observation) show that these materials are both chemically stable and mechanically stable. This was the earliest observation of this masonry, since there was no reference material for fused alumina at the time and no empirical basis for its application at the top of the furnace.

High chromium refractory products used in the past mainly used to enhance the glass melting furnace, and a small amount used in the insulation glass pool furnace. Now high-chrome bricks are being used more and more by some soda-lime glass pits. Its main use is not limited to all or part of the flow hole, but also for the end wall and to a limited extent for the feed mouth of the angle brick. For the components of high chrome tiles, they are potentially tedious, so that high chromium products are usually not compatible with very "white" glass. The initial period of this product is mainly used for colored glass, but now high-chromium products have also been successfully used in a transparent container glass furnace. The amount of high chromium products used in glass furnaces depends to a large extent on the design of their flow holes, the cooling of the liquid bath, the daily production of the furnace, and the operation of the furnace. A glass manufacturer may use high chrome tiles for all cover plates plus the end wall of the melting tank. The flow of high-chrome brick masonry provides the potential to increase the life of the kiln because the corrosion resistance of most of the material to the glass is at least twice that of the molten AZS. However, some of the design and operating parameters are different from the molten AZS brick, it is necessary to discuss with the supplier.

The Shixing company is adopted on producing high quality Fused Cast AZS Block used in glass furnaces. Established to produce series of shaped blocks Fused Cast AZS-33# Block, Fused Cast AZS-36# Block and Fused Cast AZS-41# Block with annual production capacity 20,000 tons/year. New materials production zone is equipped with two high-temperature shuttle kilns, mainly producing Zircon Brick, Silica Brick, Magnesia Brick, etc.

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