Home » News » Introduction to the recycling process of precious metals from waste circuit boards

Introduction to the recycling process of precious metals from waste circuit boards

Let’s start by talking about what precious metals are in the board. After processing, it was found that the circuit board contained gold, silver, palladium, platinum, and copper, which is why we disassembled it for recycling. The circuit board recycling equipment can extract the precious metals inside, so that the resources can be reused! The circuit board with electronic components will produce smoke and smell during the dismantling process. We collect the smoke and smell to the spray tower through the induced draft fan and the vacuum hood Separation of smoke and smell, and then UV photolysis of the smell after water spraying, thus solving the problem of smoke and smell produced during the decomposition process of the circuit board.

circuit board recycling and processing production line

Circuit board crushing and recycling equipment introduction:

1. Shredder: shred the light board to 2-3 cm.

2. Circuit board crusher: crush the crushed circuit boards to about 20 meshes.

3. Analyzing machine: The pulverized material is air-selected to separate the resin, copper, dust and fiber. The dust and fiber are sucked into the collector by the induced draft fan, and the resin and copper enter the grading screen.

4. Collector: collect dust and fiber, and discharge the collected fiber.

5. Pulse purifier: collect the dust and microfiber generated during the crushing process.

6. Classifying sieve: Screen the resin and copper, return the unseparated resin and copper to the main machine for crushing, and the separated resin and copper enter the specific gravity separator for sorting.

7. Sorting by specific gravity: Sorting resin powder and copper by specific gravity, because the weight of copper is greater than that of resin, copper will be sorted to one side, and resin will be sorted to the other side. This achieves the separation of metals and non-metals.

8. High-voltage electrostatic separation: the tailings that have passed through the specific gravity separator are then subjected to high-voltage electrostatic separation to separate the small copper powder and resin contained in the tailings.

Leave a Comment