A method for depleting copper smelting slag
A copper smelting slag and depletion technology, applied in the field of metallurgy, can solve the problems of low utilization rate of solid-phase carbonaceous reducing agent, pollute the environment, etc. The effect of high safety
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Embodiment 1
[0037] The amount of molten copper slag is 1t, the composition is shown in Table 1, and the depletion furnace used is as follows figure 1 As shown, the depletion treatment method is carried out according to the following process steps:
[0038] (1) Introduce eccentric mechanical stirring equipment into the depletion furnace, introduce high-temperature molten copper slag at 1150~1350°C into the depletion furnace, adjust the stirring blade to extend to 1 / 3 of the height of the copper smelting slag liquid level, and turn on Heating and stirring, control the temperature of copper smelting slag to 1250°C, and the stirring speed to 80r / min;
[0039] (2) At the bottom of the depletion furnace, a ventilator for blowing gas is installed, and the natural gas is blown into the molten copper slag through the bottom of the ventilating brick, and the blowing pressure is controlled at 1.0MPa, and the blowing flow rate is 8m 3 / h, inject natural gas and keep warm for 60 minutes;
[0040] (3...
Embodiment 2
[0043] The amount of molten copper slag is 1t, the composition is shown in Table 1, and the depletion furnace used is as follows figure 2 As shown, the depletion treatment method is carried out according to the following process steps:
[0044] (1) Introduce eccentric mechanical stirring equipment into the depletion furnace, introduce high-temperature molten copper slag at 1150~1350°C into the depletion furnace, adjust the stirring blade to extend to 1 / 2 of the liquid level of copper smelting slag, and turn on Heating and stirring, control the temperature of copper smelting slag to 1200°C, and the stirring speed to 70r / min;
[0045] (2) Install a ventilation switch for blowing gas on the side of the depletion furnace, blow the natural gas into the molten copper slag through the side of the ventilation brick, control the injection pressure to 0.5MPa, and the injection flow rate to 15m 3 / h, inject natural gas and keep warm for 30 minutes;
[0046] (3) Static layering, collec...
Embodiment 3
[0049] The amount of molten copper slag is 1t, the composition is shown in Table 1, and the depletion furnace used is as follows figure 1 As shown, the depletion treatment method is carried out according to the following process steps:
[0050] (1) Introduce eccentric mechanical stirring equipment into the depletion furnace, introduce high-temperature molten copper slag at 1150~1350°C into the depletion furnace, adjust the stirring blade to extend to 1 / 2 of the liquid level of copper smelting slag, and turn on Heating and stirring, control the temperature of copper smelting slag to 1345°C, and the stirring speed to 60r / min;
[0051] (2) At the bottom of the depletion furnace, a ventilator for blowing gas is installed, and the natural gas is blown into the molten copper slag through the bottom of the ventilating brick, and the injection pressure is controlled at 0.8MPa, and the injection flow rate is 10m 3 / h, inject natural gas and keep warm for 40 minutes;
[0052] (3) Stat...
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