The waste circuit board crushing and recycling production line is primarily used for the separation of metals and non-metals from waste circuit boards, copper clad boards, PCBs, and scraps. The successful development of this machine not only enhances the quality of recycled copper but also prevents secondary pollution. The production line employs a two-stage crushing process for the regeneration of waste circuit boards, turning them into a mixture of metal and resin fiber powder. Subsequently, the metal is separated from the resin through wind and static separation. To prevent dust pollution during the processing, a pulse dust removal device is added after the air flow separation process, effectively addressing the dust pollution issue.

The waste PCB crushing and recycling production line is mainly used for the separation of metals and non-metals from waste circuit boards, copper clad boards, printed circuit boards, and scraps.

1. Excellent overall performance; effective for recycling computer boards, computer panels, TV boards, and other line control boards. Also compatible with the recycling of various circuit boards containing capacitors.

2. This production line is an upgraded and replaced model of the A-type product. It consumes less electricity than the A-type, operates silently, requires minimal labor, and has a high level of automation, resulting in increased efficiency. Additionally, it occupies less space, making it an ideal production line for recycling and utilizing waste circuit boards to date.
3. The complete set of equipment utilizes a modern dust collector with a three-in-one dust removal system (cyclone dust removal + electrostatic dust removal + dedusting) for air purification, with no waste gas emissions.
4. The equipment boasts a clean appearance, free of dust bags, effectively addressing the challenges of traditional dust collectors that fail to remove dust and eliminate odors.

5. To prevent dust pollution during the processing, a pulse dust removal unit is added after the air flow sorting process, effectively solving the dust pollution issue.

PCB Shredder Recycling Equipment Process Flow

Shredder: Shreds the smooth board into pieces of 2-3 cm.

2. PCB Shredder: Shreds the crushed circuit boards to a particle size of approximately 20 mesh.

3. Analyzing Machine: Separates the crushed material by air classification, distinguishing between resins, copper, dust, and fibers. The dust and fibers are drawn into the collector by an induced draught fan, while the resins and copper proceed to the grading sieve.

4. Collector: Collects dust and fibers; the collected fibers are then discharged.

5. Pulsed Filter: Collects dust and ultra-fine fibers generated during the crushing process.

6. Grading Screen: Separate resins and copper through screening. Resins and copper that are not separated are returned to the main machine for further crushing, while the separated resins and copper are then processed through a density separator for sorting.

7. Density Separation: Perform a density separation of resin powder and copper. As the weight of copper is greater than that of the resin, the copper will be separated to one side, while the resin will be separated to the other. This achieves the separation of metals from non-metals. This is a technology currently available in China, capable of achieving a metal separation efficiency of over 99%.

8. High-voltage Electrostatic Separation: Further separate the tailings from the gravity separator through high-voltage electrostatic separation to isolate fine copper powder and resin from the tailings (The principle of high-voltage electrostatic separation is: adjust the input power to 100,000 volts through a transformer to create a high-voltage magnetic field, which has an adsorption effect on conductive metals, thereby achieving the separation of metals from non-metals).

PCB Shredder Recycling Equipment Performance Parameters

Economic Analysis of Circuit Board Recycling Equipment
Total production line power: 98 Kw, processing capacity: 700 Kg/h, copper content in circuit boards is approximately 18% (copper content varies for different types of scrap circuit boards, generally between 13%-35%), 5 operators required.
(1) Estimated Output Value (calculated based on 300 days a year, 8 hours per day)
(a) Annual copper production: 300(days) × 8(hours) × 700(Kg) × 18%(copper content) = 302.4 tons of copper. At a price of 50,000 yuan/ton, the annual value of copper production is: 302.4 × 50,000 = 15,120,000 yuan.
(b) Annual production of glass fiber powder: 300(days) × 8(hours) × 700(Kg) × 82%(content) = 1377.6(tons) Glass fiber is priced at 1000 yuan/ton, thus the annual value of non-metallic materials is: 1377.6 × 0.1(wan yuan) = 137.76(wan yuan)
(c) Total annual output value: 1512 + 137.76 = 1649.76 (10,000 RMB)
(2) Estimated
(a) Annual Electricity Consumption (with electricity cost at 0.8 Yuan/kWh): 100(Kw) × 300(days) × 8(hours) × 0.8(Yuan/kWh) = 19.2 (Ten thousand Yuan)
(b) Labor Cost: 2000 yuan (per person, per month) × 12 (months) × 5 (people) = 120,000 yuan
(c) Depreciation Expense (at 10% depreciation), approximately: 260,000 x 10% = 26,000 (10,000 RMB)
(d) Repair Costs Approx.: 10,000 RMB
(e) Scrap PCB Collection Fee: 300 (days) × 8 (hours) × 700 (Kg/h) × 6 (RMB/Kg) = 1,008 (Ten thousand yuan)
Rent: 2,000 yuan/month × 12 months = 24,000 yuan
Total: 19.2 + 12 + 2.6 + 1 + 1008 + 2.4 = 1034.2 (10 million yuan)
Gross Margin: 16,497.60 - 10,342.00 = 615.56 (10,000 RMB)