Process for recycling and manufacturing copper granule from waste and old electric wire and cable

Abstract

The invention discloses a technological method for producing copper rice grains by recovering waste wires and cables based on an improvement of the prior production mode that the waste wires and cables recover copper raw materials. The technological method has low cost, small energy consumption, less discharge and no waste pollution, meets the requirement of circular economy development, and can obtain a copper rice grain product the purity of which reaches 99.9 percent. The technological process comprises the steps of classification inspection, loading, primary crushing, secondary crushing, and vibration separation; the angle of a vibration sieve is adjusted according to the content of copper and the wire diameter, and the copper rice grains and plastic are subjected to optional separation through vibration sieving; a material from a mixed material port flows into an air suction pipe, and is sent for secondary crushing through a circulating air pipe; the air suction pipe above the vibration sieve sucks plastic fibers and other dust in the space of the vibration sieve to a dust collector for treatment; the qualified copper rice grains obtained at a copper outlet flow into a packing bag; and the finished product inspection is performed, namely the obtained copper rice grains enter a warehouse through the inspection.

Description

Technical field: [0001] The invention discloses a process method for recycling and processing waste electric wires and cables to produce copper rice grains, belongs to the field of non-ferrous metal processing, and is suitable for crushing and separating unit wires of communication cables. Background technique: [0002] In the past, metal copper was recycled from waste wires and cables, and the burning method would cause environmental pollution. Burning communication cables would cause copper loss of more than 20%, and affect the quality of copper. [0003] At present, domestic copper foil enterprises mainly use electrolytic copper as raw material to produce copper foil, which not only has high production cost, but also produces waste water discharge and other pollution, and wastes copper resources. [0004] There are also copper rice grain processing enterprises in the market, but due to poor cable crushing and separation effects, high-purity copper rice grains cannot be ob...

AI Technical Summary

Problems solved by technology

[0002] In the past, metal copper was recycled from waste wires and cables, and the burning method would cause environmental pollution. Burning communication cables would cause more than 20% copper loss and affect the quality of copper.

[0003] At present, domestic copper foil enterprises mainly use electrolytic copper as raw material to produce copper foil, which not only has high production cost, but also produces waste water discharge and other pollution, and wastes copper resources.

[0004] There are also copper rice grain processing enterprises in the market, but due to the poor effect of cable crushing and separation, high-purity copper rice grains cannot be obtained, and customers' requirements for products cannot be met.

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