Nickel is a solid slag smelting slag produced during smelting of nickel-iron alloy, the smelting slag still a small amount of nickel-iron alloy particles, due to the high cost of nickel-iron, nickel-iron recovery of these nickel-iron smelting slag particles obtain more substantial economic Benefits, but also reduce the occupation of solid waste residue on the land and environmental pollution, then what is the treatment method and processing equipment of nickel slag?

Nickel slag can be divided into dry slag and water slag according to the method of its formation. The dry slag is more massive, brittle and brittle. The formation of water slag is fine particles formed by quenching water in the molten state of the dry slag, and the specific gravity is small, and the hardness is hard and brittle. Therefore, there are certain differences in the treatment methods of dry slag and slag. For example, the dry slag is mostly blocky, and the ferronickel particles are embedded in the block dry slag. In order to recover these alloy granules, it must be crushed and ground. Break the continuum state and separate the slag from the alloy particles. Since the slag is completely dissociated from the alloy after the quenching, the slag is basically not required to be broken and ground to enter the sorting process.

After distinguishing between dry and slag, let's take a look at the composition of nickel-iron alloy. Nickel content in nickel-iron alloys above 7 is referred to as high nickel, and below 7 is referred to as low nickel. These alloys gradually decrease in magnetic permeability as the nickel content increases. When the nickel content reaches 14, the nickel-iron alloy particles have almost no magnetic properties. Therefore, in order to sort out these nickel-iron alloy particles, it is necessary to know whether the nickel residue is dry or slag, and whether the alloy is a low-nickel alloy or a high-nickel alloy.

For high-nickel alloys, due to their poor magnetic permeability, it is difficult to obtain better sorting indexes by magnetic separation method and magnetic separation equipment . Therefore, it is necessary to consider recycling by re-election method. The nickel-iron alloy has a large specific gravity and a small specific gravity of the waste residue. The nickel-iron alloy can be easily recovered from the nickel residue by a re-election method, provided that the nickel-iron alloy and the solid waste residue monomer are dissociated.

For low-nickel alloys, they are magnetic, and they can be sorted efficiently by magnetic separation equipment with medium-intensity magnetic fields, making the sorting process simpler and more convenient.

The solid waste residue after the recovery of the nickel-iron alloy can be sold to the new building materials factory as a raw material, additive, etc. of the new building materials, and basically realizes the complete recycling of the solid smelting waste residue, and the entire recycling process does not cause secondary pollution to the environment.

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