Preparation Process of Magnesium-iron-aluminum Spinel Brick and Peridot Brick. The ingredients of refractory refractories are the process of mixing various materials and binders composed of different particles. The granular composition of the blank has a great influence on the compactness of the blanks. Only a particle composition that conforms to the principle of close packing can obtain a dense ligand structure. The calculated design requirements of the two brick types require that the raw materials be accurately weighed using an electronic balance. Put the weighed raw materials of the same design scheme into the same bag and mark them with a marker. The mixed materials respectively put the accurately weighed materials of the two types of bricks into the vibratory ball mill, and after the appropriate amount of iron balls are added, they are mixed for 40 minutes and then taken out. After the pulp waste liquid is poured in proportion, the mixture is continued to be mixed by hand for 20 minutes. Mix well.

After the mixing, the mud should meet the uniform distribution of the components, the binding properties of the blank should be fully utilized, the degree of crushing should be small, and the requirements for air removal should be sufficient. Forming in the molding, weighing process in order to prevent particle segregation, to be uniform mixing. When pouring material, in order to prevent loose corners, particles fall off, mud poured into the mold should be higher than the center four corners. This experiment will be made of mafic spinel brick forsterite composite brick. First, take a cuboid mold with a size of 130mm×40mm×40mm, place a 40mm wide tooth plate in the mold, and pour the raw materials of the forsterite brick and the magnesium-aluminum-iron spinel brick into the mold respectively. On both sides of the baffle, after the end of the material is poured out, a toothed iron plate baffle is extracted. Using a test press under the action of 500kN pressed into magnesium magnesium spinel and forsterite composite brick green.

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