Method for refining iron based on copper smelting waste residues
A waste slag and copper smelting technology, applied in the direction of fluidized bed furnace, etc., can solve the problems of waste of secondary resources, difficulty in refining, low grade, etc., and achieve the effect of improving utilization rate and effective recovery
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[0022] Example 1
[0023] A method for extracting iron based on copper smelting slag, including the steps:
[0024] Crushing: After crushing the copper smelting waste residue, the broken waste residue is obtained;
[0025] Magnetic separation: After magnetic separation and crushing of the broken waste residue, waste residue particles are obtained;
[0026] Mixing: After mixing the reducing agent, flux, catalyst and waste slag particles uniformly, they are made into smelting particles;
[0027] Smelting: After drying the smelting particles and sending them into the molten pool of the refining furnace for smelting, slag and molten iron are obtained;
[0028] Slagging: after adding reducing agent and impurity removing agent to the molten pool to produce slagging reaction, impurity removing molten iron is obtained;
[0029] Preparation of bread iron: the impurity-removing molten iron is processed by a cast iron machine to obtain bread iron.
[0030] Further, the reducing agent is coke powder; ...
Example Embodiment
[0035] Example 2
[0036] A method for extracting iron based on copper smelting slag, including the steps:
[0037] Crushing: After crushing the copper smelting waste residue, the broken waste residue is obtained;
[0038] Magnetic separation: After magnetic separation and crushing of the broken waste residue, waste residue particles are obtained;
[0039] Mixing: After mixing the reducing agent, flux, catalyst and waste slag particles uniformly, they are made into smelting particles;
[0040] Smelting: After drying the smelting particles and sending them into the molten pool of the refining furnace for smelting, slag and molten iron are obtained;
[0041] Slagging: after adding reducing agent and impurity removing agent to the molten pool to produce slagging reaction, impurity removing molten iron is obtained;
[0042] Preparation of bread iron: the impurity-removing molten iron is processed by a cast iron machine to obtain bread iron.
[0043] Further, the reducing agent is coke powder; ...
Example Embodiment
[0048] Example 3
[0049] A method for extracting iron based on copper smelting slag, including the steps:
[0050] Crushing: After crushing the copper smelting waste residue, the broken waste residue is obtained;
[0051] Magnetic separation: After magnetic separation and crushing of the broken waste residue, waste residue particles are obtained;
[0052] Mixing: After mixing the reducing agent, flux, catalyst and waste slag particles uniformly, they are made into smelting particles;
[0053] Smelting: After drying the smelting particles and sending them into the molten pool of the refining furnace for smelting, slag and molten iron are obtained;
[0054] Slagging: after adding reducing agent and impurity removing agent to the molten pool to produce slagging reaction, impurity removing molten iron is obtained;
[0055] Preparation of bread iron: the impurity-removing molten iron is processed by a cast iron machine to obtain bread iron.
[0056] Further, the reducing agent is coke powder; ...
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