Recycling of PCB

As the speed of updating electronic products continues to accelerate, the number of discarded printed circuit boards (PCBs), a major component of e-waste, is becoming increasingly large. The pollution caused by used PCBs to the environment has also aroused much concern.

What are the hazards of discarded PCBs?

In the waste PCB, it contains heavy metals such as lead, mercury, hexavalent chromium and other toxic chemicals such as polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE) as the components of flame retardants, which in the natural environment will cause great pollution of groundwater and soil, and will bring great harm to people's life and physical and mental health. On the waste PCB, contains nearly 20 kinds of non-ferrous and rare metals, has a high recycling value and economic value, we use lithium battery recycling equipment to recycle waste circuit boards.

Steps for recycling circuit boards:

1 Physical method Physical method is the use of mechanical means and PCB physical properties of different methods to achieve recovery.

2 Crushing The purpose of crushing is to make the metal in the waste circuit board as much as possible and organic matter separation, in order to improve the efficiency of sorting. However, the choice of crushing method and number of stages also depends on the subsequent process.

3 sorting is the use of material density, particle size, electrical conductivity, magnetic conductivity and surface properties and other physical property differences to achieve separation. Currently widely used wind sorting technology, magnetic sorting technology and vibration screening and other technologies.

Lithium battery recycling equipment is dry crushing and separation, which can realize intelligent, while high efficiency, less artificial, high safety factor, is currently the most used a recycling method.