Process for producing electric smelting zirconium corundum 33#, 36#, 41# products by secondary casting

Abstract

A process for preparing the electrocast zirconium corundum No.33, 36 and 41 includes such steps as pretreating the leftover of cast zirconium corundum, zirconium oxide and corundum, proportional mixing, smelting by blowing oxygen from furnace bottom for removing impurities, casting and holding the temp for a certain time.

Description

technical field [0001] The invention relates to the technical field of silicate, in particular to a method for producing fused zirconium corundum 33#, 36# and 41# products by secondary melting. Background technique [0002] With the vigorous development of the glass industry, the number of large and small glass furnaces at home and abroad is increasing. The used fused refractory materials have been treated as garbage in the past, which wastes resources and pollutes the environment. It has become a major public hazard. How to dispose of these discarded Secondary casting and reuse of garbage has long been the focus of painstaking research by people in the industry. In the 1990s, some enterprises have made attempts in this regard. One is to use all waste materials for production. This production process can only produce The low-end low-quality fused zirconia corundum 30# product has been eliminated by the glass industry due to poor quality and short service life; the other is ...

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Problems solved by technology

[0002] With the vigorous development of the glass industry, the number of large and small glass furnaces at home and abroad is increasing. The used fused refractory materials have been treated as garbage in the past, which wastes resources and pollutes the environment. It has become a major public hazard. How to dispose of these discarded Secondary casting and reuse of garbage has long been the focus of painstaking research by industry insiders

In the 1990s, some enterprises have made attempts in this regard. One is to use all waste materials for production. This production process can only produce The low-end low-quality fused zirconia corundum 30# product has been eliminated by the glass industry due to poor quality and short service life; the other is to add some raw materials to the waste. Although this process can properly improve the product Quality, but because a large number of impurities brought by waste cannot be removed, the product quality cannot achieve the desired effect, and the production cost cannot be minimized

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