Waste circuit board crushing and sorting process

Circuit board recycling equipment crushing and sorting waste PCB boards include dismantling unit, crushing unit, primary wind separation unit, iron removal unit, grinding unit, fine iron removal unit, wind separation separation unit, high-voltage electrostatic separation unit, dust waste gas disposal unit , central control unit; after the circuit board is disassembled and crushed, the copper-containing metal with a purity of 99.5% is produced through primary winnowing, primary iron removal, grinding, secondary iron removal, winnowing separation, high-voltage electrostatic separation, etc. rich group. The circuit board recycling equipment can be used to recycle and process the available resources in the process of processing the waste PCB board of the circuit board copper clad laminate frame material, and the large-scale processing and recycling can meet various recycling requirements!

SUNY GROUP’s waste electronic waste PCB board crushing, shredding, crushing and sorting system scheme is characterized in that it includes a dismantling unit, a crushing unit, a primary air separation unit, an iron removal unit, a grinding unit, a fine iron removal unit, an air separation separation unit, High-voltage electrostatic separation unit, dust waste gas treatment unit, central control unit. The crushing and sorting process is as follows:

1. In the dismantling unit, remove the electronic components containing precious metals on the circuit board and the electronic components with a height greater than 30mm;

2. In the crushing unit, the disassembled circuit boards are crushed to particles with a particle size of less than 2mm through two-stage crushing.

3. The primary winnowing unit separates the non-metallic particles from the crushed material;

4. The iron removal unit removes iron from the material after the primary winnowing;

5. The grinding unit grinds and pulverizes the material after the primary iron removal to particles with a particle size less than or equal to 0.8mm;

6. The fine iron removal unit performs secondary iron removal on the ground material to remove the magnetic material in the material;

7. The winnowing separation unit conducts winnowing and grading of the material after the second iron removal, separates the light material, and the separated metal powder and heavy material are transported to the next process;

8. The high-voltage electrostatic separation unit separates resin fibers from metal powder and heavy materials through secondary separation, and the maximum purity is 99.5% copper-containing metal enrichment;

9. The dust waste gas disposal unit is used to treat the flue gas and dust in the process of dismantling, crushing and sorting;

10. The central control unit realizes the chain control of the whole system.