Circuit board recycling equipment how to disassemble circuit boards with electronic components
Release Time：2022-12-16 Source：Lithium battery recycling equipment Share：
Circuit board recycling equipment physical crushing of circuit boards for crushing and recycling, however, the existing crushing and recycling system for circuit board processing is not thorough enough, after processing metal and resin-like material recovery is not complete, so that there is still a pollution problem, the processing process of different particle sizes of lumpy processing materials can not be effectively graded, the larger fast processing materials are not crushed again, and fiber powder and dust collection due to the fan in the front of the collection The front end of the device, the powder material conveying pipe bends, so that the powder material conveying strength is not enough, easy to stay or accumulate in the inner wall of the pipe, so that the separation effect is not good.
Circuit board recycling equipment a circuit board crushing and recycling system, circuit board recycling equipment for circuit board processing after crushing the particle size of the processing material back into the crusher again, so that the crushing effect is good, the induced draft fan is located in the collector and the back end of the pulse dust collector, to facilitate the diversion of the powder material to avoid accumulation in the pipeline, circuit boards can cause pollution to the environment in the material effectively recycled, practical and strong.
Circuit board recycling equipment a circuit board crushing and recycling system includes crusher, crusher, analysis machine, air sorting sieve, specific gravity sieve, electrostatic sorting machine, also includes a dust collection device, said dust collection device includes sequentially connected collector, pulse dust collector and induced fan, the induced fan is a high pressure induced fan, high pressure induced fan model can be YDF series fan. The collector and the pulse dust collector are provided with a discharge port, and the discharge port of the collector is the fiber outlet; the crusher, the crusher, the analyzer, the air flow sorting screen, the specific gravity sorting screen and the electrostatic sorting machine are connected in turn, and the analyzer is connected to the air flow sorting screen through the elevator Ⅰ, which is a bucket elevator. The specific gravity sieve is connected to the electrostatic sifter through elevator II, which is also a bucket elevator. Both the specific gravity sieve and the electrostatic sorter are equipped with material outlets, and the material outlets on the specific gravity sieve and the electrostatic sorter are metal outlets. There is also a resin powder outlet on the electrostatic sorter. Airflow sorting sieve, analyzer and specific gravity sorting sieve are provided with a second outlet, another outlet of the airflow sorting sieve is connected to the inlet of the shredder, another outlet of the analyzer is connected to the dust collection device Ⅰ, another outlet of the specific gravity sorting sieve is connected to the dust collection device Ⅱ.
Processing process: the crusher can crush the circuit board, crushed to a particle size of 2-3 centimeters, crushed circuit board into the crusher, the crusher to crush the circuit board, crushed to about 20 mesh, crushed circuit board into the analyzer, the analyzer to crush the material for wind selection, the material in the resin powder, metal, dust, fiber powder for separation, dust and fiber powder by the high-pressure induced draft fan into the collector, resin powder, metal, dust, and fiber powder. The dust and fiber powder are sucked into the collector by the high pressure fan, and the resin powder and metal enter the airflow sorting screen through the elevator Ⅰ; the collector collects the fiber powder, and the collected fiber powder is discharged through the fiber powder outlet, and the pulse purifier can collect the dust and superfine fiber produced during the crushing process; the airflow sorting screen screens the resin powder and metal, and the resin and metal that are not separated return to the crusher for another crushing. The separated resin powder and metal enter the specific gravity sieve for separation; specific gravity sieve can separate resin powder and metal by specific gravity, because the weight of metal is greater than the weight of resin powder, metal will be sorted to one side and resin powder will be sorted to the other side, so as to achieve the separation of metal and resin powder, which is a very advanced sorting technology in China at present, and the metal sorting effect can reach more than 99%.
Electrostatic sorter, also known as high pressure electrostatic sorter, can separate the small particles of metal and resin powder contained in the tailing material after the specific gravity sieve, the principle of high pressure electrostatic sorter is: the input power is adjusted to 100,000 volts of high voltage by the transformer, forming a high pressure magnetic field, the conductive metal adsorption, so that the metal and non-metal separation.
High-pressure induced fan will analyze the machine and specific gravity sieve screening light material into the collector, after the collector into the pulse dust collector, under the attraction of the high-pressure induced fan, high-pressure airflow on the fiber powder and dust suction and attraction function, in the collector and pulse dust collector will inevitably exist in the bend, high-pressure induced fan is located at the end of the advantage of the material suction in front of the suction, the material through the bend when If the induced draft fan is located in the front of the collector, it is equivalent to the material entering the collector and pulse dust collector, the induced draft fan gives the material a backward blowing force, the blowing force will be relatively weakened when the material passes through the bend, the material will easily stay or accumulate in the inner wall of the bend, so that the material collection is not complete; the collector discharges the fiber powder through the fiber powder port, and the ultra-fine fiber or other dust will be discharged through the pulse dust collector. The fiber or other dust is processed and purified by the pulse dust collector to prevent the gas and dust from polluting the air, and the treated ultra-fine dust is discharged through the discharge port on the pulse dust collector.
After the above multiple screening and processing, the waste circuit board can be fully processed, with high recovery rate, little environmental pollution, and strong practicality.