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The performance of high-quality magnesia-iron-aluminum composite spinel brick and its application in cement rotary kiln

The performance of high-quality magnesia-iron-aluminum composite spinel brick and its application in cement rotary kiln
The pollution of refractory materials in the cement industry is mainly caused by chromium-containing refractories. The main ways are as follows: First, in the calcination process of cement clinker, when chromium-containing refractories are in the presence of oxidizing atmosphere and alkaline oxides, Cr+3 Some of it will be converted into Cr+6, which is harmful to humans, and will be mixed into the cement clinker along with the peeled refractory materials, causing the chromium content in the cement to exceed the standard; second, the chromium-containing waste bricks are treated unreasonably, and they are washed into the ground by rainwater. And pollution to the groundwater source.
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It is very important for the refractory industry to achieve circular development

It is very important for the refractory industry to achieve circular development
No matter what industry is being developed, refractory materials are necessary materials for the development of the raw material industry. Cement, glass, steel and other industries need refractory materials. Therefore, it is particularly important for the refractory industry to achieve circular economic development.
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