The Hongxing Machine has a high degree of automation and is best suited for customers who want to do efficient cable recycling with a minimum of manpower. The investment cost is considerably higher than the basic Hongxing,A unit, but your ROI is realized in a very short time. Cable is typically fed by a mobile crane, hyduarlic cone crusher or a fork lift truck with rotating forks into the hopper of the rough chopper. When the hopper is filled with material, the machine runs automatically for approx. 30 minutes before it needs to be re-fed. The storage bin automatically feeds the pre-chopped material into the granulator. Armored cable can be processed in this configuration and the Hongxing Machine comes with a very powerful large belt magnet.

Copper beneficiation may consists of: crushing and grinding, single toggle jaw crusher, washing, filtration, sorting and sizing, gravity concentration, flotation, roasting, autoclaving, chlorination, dump and in situ leaching, ion exchange, solvent extraction, electrowinning, and precipitation. Crushing and grinding is the most energy intensive.

The methods selected vary according to ore characteristics and economic factors. Approximately half of copper beneficiation occurs through dump leaching, while a combination of solvent extraction, froth flotation, and electrowinning is generally used for the other half. Often, more than one metal is the target of beneficiation activities.

According to EPA’s Office of Solid Waste Technical Resource Document, copper is increasingly recovered by solution methods including dump and in situ leaching. Because most copper ores are insoluble in water, chemical reactions are required to convert copper into a water-soluble form. Copper is recovered from a leaching solution through precipitation by SX/EW. Solution beneficiation methods account for approximately 30 percent of domestic copper production. Two-thirds of all domestic copper mines use some form of solution operations. Typical leaching agents used in solution beneficiation are hydrochloric and sulfuric acids. Microbial (or bacterial) leaching is used for low-grade sulfide ores; however, this type of leaching is much slower than standard acid leaching. Its use is still being piloted.belt conveyor:http://www.hx-crusher.com/belt_conveyor.html
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Dump leaching is the simplest form of hydrometallurgical beneficiation of low-grade ores, waste rock, and overburden practiced at large, open-pit copper mines. Dump leaching is a method of treating copper ore that has been extracted from a deposit. This method refers to the leaching of oxide and low-grade sulfide ore on typically unlined surfaces. These operations involve the application of leaching solution, which is usually a dilute sulfuric acid solution, collection of pregnant leach solution (PLS), and extraction of copper by SX/EW or cementation. Natural precipitation or mine water is generally used to leach low-grade sulfide ore, while dilute sulfuric acid is commonly used to leach oxide ores. Copper dump leaches are massive, ranging in height from 20 to hundreds of feet, covering hundreds of acres and containing millions of tons of ore. Dump leaching operations may take place over several years.

Copper is removed from the pregnant leachate through either iron precipitation (or cementation) or solvent extraction and electrowinning. In cementation, once the most popular method for recovering copper from the pregnant leachate, the leachate is combined with detinned iron in a scrap iron cone or vibrating cementation mill where the iron replaces the copper in the solution. The copper precipitates are removed for subsequent pyrometallurgical processing.