Two sorting methods of copper rice machine
Copper wire granulator is a machine used to crush waste copper wire and separate copper from plastic. Because the separated copper looks like rice grains. Therefore it is called copper wire machine. The copper wire machine is a kind of environmentally friendly machinery. In recent years, there have been more and more domestic manufacturers producing copper wire machines. Dry copper wirer and wet copper wirer are two different technologies for processing waste cables and wires to recover copper. Although these two machines have the same purpose, namely to separate copper and plastic, their respective sorting principles and processes are different.
The sorting principle of the dry copper wire machine is mainly based on mechanical separation and air flow separation technology. In this process, scrap cables are first crushed through a shredder, which crushes wires and cables into smaller pieces. Afterwards, the lighter plastic flakes are separated from the heavier copper particles through a vibrating screen or wind separator, using the difference in material density. Since the density of copper is greater than that of plastic, the copper particles will sink during the vibration process or remain in a lower position under the influence of wind, while the plastic pieces will be blown away or floated by the air flow, thereby achieving effective separation of copper and plastic.
The sorting principle of a wet copper wire mill involves a liquid medium, usually water, to assist in the separation process. Waste cables are also first crushed into small pieces, and these pieces are then placed in a water-containing separation tank. In water, the difference in specific gravity between copper and plastic is used. Copper usually sinks to the bottom due to its heavy specific gravity, while plastic floats on the surface. The copper sinking to the bottom and the plastic floating to the top can then be collected separately through different outlets. Wet processing generally provides better separation efficiency, especially for those fine particles, but water resources need to be managed during the treatment process to ensure that water treatment and recycling do not cause environmental burden.
Both types of copper wire machines have their own advantages and limitations. The dry machine is simple and easy to operate and does not involve liquid handling, while the wet machine, although complex, can achieve finer material separation. The choice of machine often depends on specific processing needs and environmental requirements.
