A kind of high density electric fused magnesium oxide and its preparation method and preparation device
A technology for fused magnesia and magnesia, which is applied in the field of its preparation and high-density fused magnesia, can solve the problems of easy cracking, speed up the discharge of impurity components, reduce impurity content, etc., so as to improve corrosion resistance and reduce The effect of smelting unit consumption
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0041] A method for preparing high-density electric fused magnesium oxide, the specific process steps are as follows:
[0042] Step 1, crushing the magnesite ore to less than 80 mm to obtain magnesium oxide raw material;
[0043] Step 2, adding 0.01-0.5wt% zirconium powder and 0.01-0.05wt% calcium oxide to the magnesium oxide raw material, the particle size of the zirconium powder is 0.1-100 μm, and mixing uniformly to obtain product 1;
[0044] Step 3, crushing the carbon block electrode to less than 50 mm to obtain the electrode raw material;
[0045] Step 4, in terms of mass percentage, spread 10-15wt% of the product one on the bottom of the electric furnace, and spread 10-15wt% of the electrode raw material on the area around the cylindrical electrode at the bottom of the center of the electric furnace; The three live wire electrodes of the electric melting furnace are randomly named as the first electrode, the second electrode and the third electrode. 100; the cross-sec...
Embodiment 1
[0059] On the basis of the disclosed embodiments, a method for preparing high-density electric fused magnesia is disclosed. The magnesite ore with a magnesite content of 46.7% is crushed in a jaw crusher to a size below 80 mm, and the magnesia raw material is added to account for The total mass is 0.01wt% zirconium powder and 0.01wt% calcium oxide, and the particle size of the zirconium powder is 0.1-10 μm; the carbon block electrode is crushed in a jaw crusher to less than 50 mm to obtain a carbon block electrode; in mass percentage, the 10wt% of the product is spread on the bottom of the electric melting furnace, and then 10wt% of the electrode raw material is spread in the area around the cylindrical electrode at the bottom of the center of the electric melting furnace. Add evenly near the solid graphite electrode at a melting temperature of 2000°C, and continue to melt for 1 hour; add 50wt% magnesium oxide raw materials evenly near the solid graphite electrode at a melting ...
Embodiment 2
[0071] On the basis of the disclosed embodiments, a method for preparing high-density electric fused magnesia is disclosed. The magnesite ore with a magnesia content of 48% is crushed in a jaw crusher to a size below 80mm, and the magnesia raw material is added to account for The total mass is 0.5wt% zirconium powder, and 0.05wt% calcium oxide, and the particle size of the zirconium powder is 60-100 μm; the carbon block electrode is crushed to below 50 mm in a jaw crusher to obtain a carbon block electrode; in mass percentage, the 15wt% of the product is spread on the bottom of the electric melting furnace, and then 15wt% of the electrode raw material is spread in the area around the cylindrical electrode at the bottom of the center of the electric melting furnace. Evenly added to the vicinity of the solid graphite electrode at a melting temperature of 2000°C, and continued for 12 hours; DC power supply evenly added 30wt% magnesium oxide raw materials to the vicinity of the sol...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More