Large crystal fused magnesia calcium sand production process

The fused sand products mainly use graphite as raw material to prepare MgO- with different contents, and the slag properties of the sample-SiO2 are measured by the rotary method. The results show that the addition method of fused sand affects the slag erosion and slag hanging properties. When all the molten sand is added with aggregate, the slag hanging performance is better, but the slag erosion performance is poor. Electrical oxide powder, 97 fused sand, 98 fused sand only when the fused sand aggregate and powder are added in proportion, namely When the slag hanging performance and the erosion performance are balanced, the residual thickness of the MgO--C brick is the best. The fused sand product has the characteristics of excellent erosion performance, high alkaline slag penetration ability, and good spallability. Magnesium-aluminum spinel products are mainly used for ladle slag lines and refining furnace linings in electric furnaces and converters.

Magnesium Aluminum Spinel

The fused sand is mainly made of rhombohedral ore above the content and melted in an electric arc furnace. The chemical indicators of fused sand can be divided into 6 major items; 1. Oxidation content; 2. Silicon dioxide content; 3. Ferric oxide content; 4. Aluminum oxide content; 5. Caustic soda; 6. Body density; The molten sand product has the advantages of large crystal grains, dense structure, slag material, and good thermal shock stability.

The main features of fused sand products: fused sand products are characterized by complete structure, dense organization, high melting point (28 ° C), stable chemical properties, high compressive strength of magnesium-aluminum spinel, edge, erosion resistance, corrosion resistance, is It is an important raw material for metallurgy, building materials, light industry, furnace lining and bulk materials, and also an important refractory material for steel, cement, glass, non-ferrous metal smelting and other industries.

Main uses of fused sand: fused sand can be mainly used for auxiliary refractories such as gunning materials and ramming materials, as well as special refractories such as flow steel mouth bricks, bricks, chrome bricks, electrical oxide powder, 97 fused sand, and 98 fused sand. It can also be used as refractory lining on vacuum and non-vacuum induction furnaces and electric arc furnaces. It is an ideal raw material for making oxidation crucibles, furnaces and various high-temperature casings.

Production process of large crystal fused sand: Large crystalline fused sand is mainly obtained by selecting -content oxidation, mm-3mm specification oxide particles, and melting in an electric arc furnace. This product has the advantages of large crystal grains, compact structure, good slag and thermal shock stability. Used in metallurgy, chemical industry, national, scientific research, aerospace, household electrical components, etc.

Product use of large crystal fused sand: large crystalline fused sand is used as refractory lining for steelmaking furnace, basic refractory raw material for making refractory bricks and unshaped refractories; it can also be used as filler for making thermocouples and thermocouples. Edge materials (household appliances, etc.); can also be used for ceramic raw materials and sintering aids as well as metallurgy, building materials, chemicals, countries, equipment, etc.