Jiangsu waste wires and cables are recycled about 3%, which is the current price time, and the price is unstable, because the price of Tong has been unstable. The raw material of copper wire for cables is about one kilogram in 63 yuan, so it is good that the difference between waste products and finished products is 5 yuan, and the price depends on the degree of waste and the amount of your waste cables. At the beginning, the price should be set higher.
1. Manual peeling method: This method uses manual peeling, which has low efficiency, high cost and poor operating environment for workers;
2. Incineration method: Incineration method is a traditional method, which makes the plastic skin of waste cables burn, and then recovers the copper in it, but the smoke pollution is extremely serious, and at the same time, the surface of copper wire is seriously oxidized during the incineration process, which reduces the metal recovery rate. This method has been strictly prohibited by governments all over the world;
3. Mechanical peeling method: the cable peeling machine is used for processing, which still needs manual operation, is semi-mechanized, has high labor intensity and low efficiency, and is only suitable for processing large-diameter cables;
4. chemical method: the technology of treating waste cables by chemical method was put forward in the 199s, which was studied in some countries and also in China during the Eighth Five-Year Plan period. One of the biggest disadvantages of this method is that the waste liquid can not be treated and has a great impact on the environment, so it is rarely used;
5. Freezing method: This method was also put forward in the 199s. Using liquid nitrogen as refrigerant, the waste cable becomes brittle at extremely low temperature, and then the plastic sheath is separated from the copper wire section through crushing and vibration. China also initiated research during the Eighth Five-Year Plan period, but this method has the disadvantage of high cost and difficulty in industrial production.