Stainless steel smelting method for improving content of MgO in slag of gas oxygen refining converter and LF (ladle furnace)
A smelting method and stainless steel technology, applied in the direction of improving process efficiency, manufacturing converters, etc., can solve problems such as affecting the life of stainless steel refining ladle refractory materials, and achieve the effects of improving LF refining furnace ladle age, reducing erosion, and low energy consumption
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Embodiment 1
[0029] (1) Recover 72 tons of waste magnesia-calcium refractories after smelting in the gas-oxygen refining converter, and transport the waste and old refractories to the silo by forklift;
[0030] (2) After passing through the vibrating feeder, the waste and old refractories in the silo are transported by the belt to the jaw crusher for rough crushing, and the particle size of the waste and old refractories obtained is less than 70mm;
[0031] (3) Screen the waste refractories below 15mm obtained in step (2) directly, and the waste refractories with a particle size of 15-70mm will continue to be transported by the belt conveyor to the hammer crusher for fine crushing to keep the particle size below 15mm;
[0032] (4) Screen the waste refractories with a particle size of less than 15mm obtained in step (2) and step (3) again, and transport the waste refractories with a particle size of less than 3mm to the LF refining furnace hopper with a particle size of 3mm~15mm by a shovel t...
Embodiment 2
[0040] (1) Recover 56 tons of waste magnesium-calcium refractories after smelting in the gas-oxygen refining converter, and transport the waste and old refractories to the silo by forklift;
[0041] (2) After passing through the vibrating feeder, the waste and old refractories in the silo are transported by the belt to the jaw crusher for rough crushing, and the particle size of the waste and old refractories obtained is less than 75mm;
[0042] (3) Screen the waste refractories below 15mm obtained in step (2) directly, and the waste refractories with a particle size of 15-70mm will continue to be transported by the belt conveyor to the hammer crusher for fine crushing to keep the particle size below 15mm;
[0043] (4) Screen the waste refractories with a particle size of less than 15mm obtained in step (2) and step (3) again, and transport the waste refractories with a particle size of less than 3mm to the LF refining furnace hopper with a particle size of 3mm~15mm by a shovel...
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