The status quo and problem analysis of recycling technology of used circuit boards
Our company analyzed the current status and problems of the recycling technology of waste printed circuit boards, and produced waste circuit board recycling equipment, a set of economical and green circuit board physical recycling methods. According to the process and technical characteristics of waste circuit board recycling equipment, the separation results and environmental impact are analyzed. The technology of waste circuit board recycling equipment can realize the efficient separation of metal and non-metal materials, which is helpful for the deep application of non-metal materials.
The mechanical equipment solution is to pulverize waste circuit boards into fine particles, and then realize the separation based on the differences in physical properties, which generally include treatment processes such as crushing, grinding, and sorting. The waste circuit board recycling equipment adopts a double-shaft shredding machine for the first breaking machine, a hammer mill for the second breaking machine, and a high-speed turbine mill for the third breaking machine. The materials are pulverized into powder through three-stage pulverization, and then sorted by air-flow sorting equipment and electrostatic sorting equipment. The structure of this production line is novel and unique; the production capacity is large, and the power consumption is low; one feeding is completed by multiple machines; the entire production line is controlled by PLC.
The efficiency of the pulse dust removal equipment set in the waste circuit board recycling equipment is as high as 99.9%. The high-voltage electrostatic separator makes the separation of metals and resins and other non-metals more refined and more reasonable. It not only effectively controls the loss of non-ferrous metals, but also allows non-metals to be used rationally, and the separation rate of metals is as high as 99%. The complete production line of waste circuit board recycling equipment is equipped with bridges and guardrails to facilitate the maintenance personnel to monitor and maintain the equipment in real time. The waste and shredding equipment is equipped with a hydraulic system to facilitate the replacement of wearing parts and improve work efficiency.