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Waste copper wire and cable processing technology
To view:3  The release date:2019-12-19

The purpose of the pretreatment of waste wires and cables is to separate the copper wire from the insulation layer. There are four main methods:

01. Mechanical separation

云顶集团网址 Mechanical separation can be divided into two types.

(1) drum peeling machine processing method. This method is suitable for waste wires and cables of the same diameter. This kind of equipment is already available in our country. Wolverhampton factory in the UK USES this kind of equipment to peel waste wires and cables, and the result is very good.

The process has the following characteristics:

云顶集团网址 A. copper and plastic in waste wires and cables can be comprehensively recovered, with A high level of comprehensive utilization;

B. the copper scraps produced are basically free of plastics, which reduces the pollution of plastics to the atmosphere during smelting;

C. simple process, easy to mechanization and automation;

云顶集团网址 The disadvantage of this kind of equipment is the high power consumption in the process, the blade wear quickly.

(2) cutting type peeling machine processing method. This method is suitable for handling bulky cables and wires. The equipment has been produced by a factory in xiangfan, China.

云顶集团网址 02. Cryogenic freezing

云顶集团网址 The cryogenic method is suitable for handling wires and cables of various specifications. The waste wire and cable are frozen to make the insulation layer brittle, and then broken by shock to separate the insulation layer from the copper wire.

03. Chemical stripping

In this method, an organic solvent is used to dissolve the insulation layer of the waste wire to separate the copper wire from the insulation layer. The advantage of this method is that high quality copper wire can be obtained, but the disadvantage is that solution treatment is more difficult, and the price of solvent is higher, the development direction of this technology is to study a cheap and practical effective solvent; Recommended products: control cable

云顶集团网址 04. Thermal decomposition method

云顶集团网址 The waste wire and cable are first cut, and then added to the pyrolysis room by the transport feeder for pyrolysis. The copper wire after pyrolysis is sent to the outlet water-sealed pool by the grate conveyor, and then loaded into the product collector. Copper wire can be used as the raw material for the production of refined copper. The pyrolytic gas is sent to the combustion chamber to burn off the combustible materials, and then sent to the reactor to absorb the chlorine gas with calcium oxide and discharge it. The resulting calcium chloride can be used as a building material.


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