Regeneration method of steelmaking carbonic crushed brick

Abstract

The invention discloses a regeneration method of steelmaking carbonic crushed bricks. The regeneration method comprises the following technical flow steps of: piling in classification; sorting; removing impurities; preprocessing; drying; crushing; screening; packing; and producing a regeneration product. Regeneration grains can be used for producing regenerated magnesia carbon bricks, aluminum-magnesium-carbon bricks, aluminum carborundum carbon bricks, tundish dry materials, aluminum-magnesium-carbon fireclay and slag-pot unfired bricks. The regeneration use rate of the carbonic crushed bricks can reach as high as 100 percent. The invention saves resources, clears garbage and protects the environment.

Description

Technical field [0001] The invention relates to a method for recycling carbon-containing waste bricks for steelmaking. Background technique [0002] With the rapid growth of iron and steel production capacity, the demand for refractory materials in iron and steel enterprises is increasing, and more and more refractory materials are scrapped. At the same time, the reserves of refractory raw materials are also decreasing. One of the major issues of development. [0003] The recycling of carbon-containing waste bricks is a magic weapon for resource regeneration and recycling, and it is an important way for refractory production enterprises to save resources and reduce costs. Carbon-containing waste bricks include magnesia-carbon, aluminum-magnesium-carbon and aluminum-silicon carbide carbon bricks, which are used in ladles, tundishes, slag pots and ladles. At present, the main methods of utilizing carbon-containing waste bricks mainly include combustion methods, etc. For exam...

AI Technical Summary

Problems solved by technology

At present, the main methods of utilizing carbon-containing waste bricks mainly include combustion methods, etc. For example, Chinese patent CN200510018029.3 discloses a "recycling method for waste magnesia-carbon bricks". This method removes graphite and only uses particles, and the utilization rate of waste bricks is low. , high cost, and pollute the environment

In addition, there are also non-fired methods. For example, Chinese patent CN200810140933.5 discloses a "method for producing magnesia-carbon bricks using waste magnesia-carbon bricks as the main raw material", but its utilization rate is only 80%, which wastes resources and increases costs.