Circuit board recycling equipment to improve the mechanical-physical method of recycling technology
Release Time：2022-12-21 Source：Lithium battery recycling equipment Share：
Printed circuit boards are an indispensable component of general electronic and electrical equipment, and their waste volume accounts for about 3% or more of the total electronic waste. Waste printed circuit boards are highly resourceful in terms of the copper, gold and silver metals they contain. From the perspective of environmental protection and sustainable use of resources, the resourceful recycling of waste printed circuit boards has become a hot issue of global concern. A kind of waste circuit board recycling equipment consists of a table 1, primary crusher 2, screw conveyor, secondary crusher 6, sorting machine 10 and many other equipment. The utility model has stable operation, uniform material transportation, high crushing rate of waste circuit boards, high recovery rate of metal copper and other useful resources, and high product grade, and also reduces labor intensity.
At present, compared with other scrap circuit board recycling methods, mechanical-physical method recycling technology has been proven to be a low-cost, environmentally friendly method of recovering metal from circuit boards because it includes multi-stage crushing, magnetic separation, screening, electrostatic sorting and cyclone sorting multi-pass processes. The design principle of roller crusher and applied to the coarse crushing process of circuit boards has achieved good crushing results. The fine crushing and sorting process of circuit boards was studied using a graded impact mill to achieve fine crushing and metal separation of circuit boards.
Circuit board recycling equipment to improve the mechanical - physical method of recycling technology, improve the disassembly and metal recovery process, the establishment of circuit board recycling equipment recycling automated production line, reduce the cost of recycling equipment and operating costs. Recycling process in order to achieve high efficiency, low cost and large-scale applications, the established circuit board recycling automated production line contains three main parts: circuit board disassembly system, coarse crushing system, fine crushing - metal separation system. After the electronic components and solder are separated by the disassembly system, the waste printed circuit board is sent to the coarse crushing system; it is first sheared and crushed by the differential speed roller crusher, and then sent to the hammer crusher for further coarse crushing; finally, the coarse crushed products are sent to the fine crushing-metal separation system to complete the separation of metal and non-metal components.
Circuit board recycling equipment to improve the mechanical-physical recycling technology coarse crushing system consists of differential speed roller crusher and hammer crusher, fine crushing - metal separation system consists of graded impact mill (including crusher and classifier), cartridge dust collector and induced draft fan.