In recent years, the electronics industry has developed rapidly, and the renewal rate of home appliances such as mobile phones and computers has become faster and faster. Many used home appliances have been randomly discarded. Experts say that these discarded electronic wastes still have good use value. For example, some old mobile phones, computers and other spare parts can be used to extract gold components and extract gold. There are hundreds of tons of gold-containing waste that need to be processed every year. . In 1 ton of electronic boards, 0.45 kg of gold, 1 kg of silver, 130 kg of copper, 20 kg of tin can be separated, and "electronic waste" has become an industry that hides huge profits. With our process, the recovery rate can reach 99, and the purity is 99.9. According to our years of refining experience, 1 ton of electronic boards can extract 350 grams of gold, 2 kilograms of silver, 120 kilograms of copper, 25 kilograms of tin, 10 kilograms of palladium capacitors, 10 kilograms of nickel-containing parts, 400 kilograms of light boards, etc. (provided to students Detailed content and price list), as well as leftovers from electronics factories to refine gold and silver is even more impressive.

Circuit Board Recycling Machine

Measures/Steps:

1. The circuit board is sent to the shredding and crushing machine by the conveyor, and the circuit board is unfolded and shredded to 3-5 cm, and then directly dropped to the crusher. The crushed particles reach 1-2 cm, and then sent by the feeding screw Enter the three-stage mill to start grinding. The mill is an integrated water-cooled mill. The mill is started under the condition of ensuring the normal temperature of the machine. Now it reaches 50-80 mesh. The mill comes with a grading and screening machine. In the milling process, the circuit board powder that reaches the required number of meshes enters the next process, and it does not reach the required cycle again.

2. The 50-80 mesh circuit board powder is fed to the next step of the wind specific gravity separator, and the primary separation is carried out according to the specific gravity of the copper powder and the resin fiber powder. About 70% of the metal powder can be separated. The powder separated by the specific gravity separator and the The powder sucked by the upper suction is fed to the pulse dust collector, and the powder discharged from the pulse dust collector contains a small amount of copper powder inside, and is sent to the high-voltage electrostatic separation equipment by the wind feeder to be separated in one step after unfolding.

3. Manually place the PCB light board on the belt conveyor and send it to the two-stage crusher to expand and break into granules, and then pass the three-stage grinding, wind classification, gravity classification, screening classification and high-voltage electrostatic sorting machine to sort, etc. Step, the copper in the pcb is separated and recycled from the non-metal. The fugitive dust and odor formed by the pcb electric sorting system are collected, dedusted and deodorized, and then discharged up to the standard.