ZHENGYANG MACHINERY EQUIPMENT Co.,Ltd.

Application of circuit board recycling equipment in the field of electronic waste treatment

Circuit board recycling equipment occupies a place in the field of electronic waste treatment, and can be widely used for waste circuit boards, copper clad laminates, circuit board frame materials, etc. The waste circuit board (PCB) of the automatic waste circuit board recycling and processing production line is a mixture of glass fiber reinforced resin and various metals. Its metal grade is equivalent to dozens to hundreds of metal grades in ordinary minerals, and its metal content is as high as 40%, which is a typical electronic waste. Circuit board recycling equipment can recover metals and other effective resources without causing any environmental pollution. It is an efficient and fully automatic recycling and processing waste circuit board production line that is more suitable for protecting the environment.

The whole line structure and process flow of circuit board recycling equipment: The circuit board processing and recycling production line is mainly composed of shredder, crusher, pulverizer, airflow specific gravity sorter, high-voltage electrostatic sorter and other auxiliary equipment.

1. Put the waste circuit boards into a crusher, and use the roller crusher (first-level crushing) to roughly crush the waste circuit boards, so that the circuit boards are crushed into materials with a size of about 4CM, and then enter the belt conveyor. On the machine, the magnetic separator on the conveyor separates the iron in the material, and the remaining material will be sent to the secondary pulverizer by the conveyor for pulverization, making it a powdery mixture of metal and resin fiber powder; The material enters the No. 1 cyclone separator under the action of the negative pressure fan, and settles on the vibrating screen of the airflow separator through the outer cyclone air flow of the cyclone separator. The light resin powder will be connected with the inner cyclone air flow of the cyclone separator. into the pulse dust collector. Under the action of wind and vibration, the materials entering the air separator will separate the metal powder materials and resin powder materials to obtain copper, resin powder and semi-finished products. The obtained copper has a purity of more than 85% and can be sold directly.

Circuit board recovery equipment 2. The resin powder obtained will enter the No. 2 cyclone separator under the action of the fan, and the resin powder will settle into the screw conveyor with the outer cyclone airflow, and then be sent out, bagged and collected by the screw conveyor. The inner swirling airflow will bring light dust into the pulse dust collector. Under the filtration of the dust bag, the dust settles to the bottom, and is sent out, bagged and collected by the screw conveyor. The clean air obtained after filtering is discharged from the top of the pulse dust collector. The semi-finished products obtained are entered into the electrostatic separator through a closed screw conveyor for re-sorting. The semi-finished products obtained by electrostatic sorting are basically materials that are not completely crushed and peeled off cleanly, and the materials will enter through the screw conveyor. In the secondary pulverizer, it is pulverized again, and at the same time, the electrostatic separation will obtain higher purity copper and resin products.

Waste circuit boards apply circuit board recycling equipment to the industrialization of electronic waste. The circuit board recycling equipment crushing and separation device can crush and sort electronic waste such as waste circuit boards and copper clad laminates. For complex raw materials and different metal contents The raw materials can be processed, the recovery rate is high, and the environment is protected.