With the rapid development of technology industries such as electronic information, the recycling technology of waste wire and cable has received more and more attention. At present, the main technology of comprehensive utilization of waste wire and cable is mechanical treatment technology.
Mechanical processing technology is currently the main technology adopted by various processing enterprises. It uses machinery to separate the copper core and plastic sheath of waste electrical cables, and recycle the copper in them. The commonly used mechanical recycling technologies are wire stripping and crushing, and the machines used are wire stripping machines and copper wire recycling machines.
Crushing technology is to directly crush waste wires and cables into granules by mechanical equipment such as cutting or crushing, and then separate plastics and metals through sorting equipment. The complete set of mechanical equipment including crushing and sorting is often called "Copper Wire Recycling Machine". According to the different sorting methods, the copper cable recycling machine can be divided into dry copper cable recycling machine and wet copper cable recycling machine.
Dry copper wire recycling machine means that the copper wire recycling machine adopts a sorting method without adding water in the sorting process, mainly using air separation or electrostatic separation for sorting. The idea of wet copper wire recycling machine mainly comes from beneficiation, using gravity shaking table separation, using water as the fluid, under the action of water flow and bed surface vibration, based on the different densities of copper particles and plastic particles to achieve the purpose of separation.
At present, the domestic copper wire recycling machine adopts two-stage crushing + air separation + electrostatic separation.
The suitable crushing object of the crushing equipment in the traditional copper wire recycling machine is the case where the diameter of the metal conductor in the cable is the same as the distance between the knives, that is, the waste cable with a single line type. When dealing with chaotic lines (cable diameters of different sizes), it will cause unnecessary wear and tear of the tool, and the crushing is difficult and the crushing efficiency is low.
With the rapid development of the electric power communication industry, the society's demand for wires and cables is increasing, and the waste wires and cables are also increasing day by day. The society urgently needs a reasonable method to deal with such wastes. The new technology of separation, recovery and recycling of complete sets of waste wires and cables in dry copper wire recycling machine has established a new technology for recycling waste wires and cables with the characteristics of simple operation, low energy consumption and no secondary pollution.
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