Waste copper wire and cable processing technology
/ /Mechanical separation method
1) Drum peeling machine processing method. This method is suitable for processing waste wires and cables of the same diameter. This equipment already exists in our country. The Wolverhampton factory in the UK uses this kind of equipment to strip waste wires and cables, and the results are very good.
A. Copper and plastic in waste wires and cables can be comprehensively recycled, with a high level of comprehensive utilization;
C. The process is simple and easy to mechanize and automate;
2) Cutting type peeling machine processing method. This method is suitable for processing thick cables and wires, and a factory in Xiangfan, my country has been able to produce this equipment.
Low temperature freezing method
The cryogenic freezing method is suitable for processing wires and cables of various specifications. The waste wires and cables are first frozen to make the insulation layer brittle, and then crushed by shock to separate the insulation layer from the copper wires.
Chemical peeling method
This method uses an organic solvent to dissolve the insulation layer of the waste wire to achieve the purpose of separating the copper wire and the insulation layer. The advantage of this method is that it can obtain high-quality copper wire, but the disadvantage is that it is difficult to process the solution and the price of the solvent is high. The development direction of this technology is to research a cheap, practical and effective solvent; recommended product: control cable
Thermal decomposition method
The waste wires and cables are first sheared, and then added to the pyrolysis chamber for pyrolysis by the transport feeder. The pyrolyzed copper wires are sent to the outlet sealing pool by the grate conveyor, and then loaded into the product collector. The copper wires It can be used as raw material for producing refined copper. The gas produced by pyrolysis is sent to the afterburning chamber to burn the combustible substances in it, and then sent to the reactor to absorb the chlorine gas with calcium oxide and then discharged. The generated calcium chloride can be used as a building material.
