In today's technological era, the update and replacement of electronic products occur at an extremely rapid pace, resulting in the generation of a large number of waste circuit boards. If these waste circuit boards are not handled properly, they will not only cause serious environmental pollution but also waste a large amount of valuable metal resources contained therein. The emergence of a complete set of water selection and recycling equipment for waste circuit boards provides an effective solution to this problem. The complete set of water selection and recycling equipment for waste circuit boards is mainly composed of a feeder, a crusher, a sieve, a flotation machine, and other components. The feeder evenly feeds the waste circuit boards into the crusher, which crushes the circuit boards into smaller particles for subsequent processing. The sieve can then screen the crushed circuit board particles according to different sizes, separating particles of different specifications. The flotation machine is the core component of the entire recycling equipment. During the flotation process, by adding specific reagents, the metal particles in the circuit boards are separated from other impurities and float on the water surface. Then, the metal particles floating on the water surface are scraped out by a skimmer and sent to the subsequent processing steps. This water selection and recycling method has the advantages of high efficiency, environmental protection, and energy saving, allowing for maximum recovery of metal resources from waste circuit boards while reducing environmental pollution. The application of the complete set of water selection and recycling equipment for waste circuit boards not only brings considerable economic benefits to enterprises but also has important environmental significance. By recycling the metal resources in waste circuit boards, it can reduce the exploitation of primary metal resources and reduce environmental damage. At the same time, the wastewater and waste residue generated during the recycling process can also be effectively treated to meet national emission standards and avoid secondary pollution to the environment. However, the promotion and application of the complete set of water selection and recycling equipment for waste circuit boards still face some challenges. Firstly, the source of waste circuit boards is unstable, and the recycling cost is high. Secondly, the research and development and innovation of recycling technologies need to be further strengthened to improve recycling efficiency and quality. In addition, the formulation of relevant policies and regulations also needs to keep pace with the times to provide strong support for the recycling and utilization of waste circuit boards. In summary, the complete set of water selection and recycling equipment for waste circuit boards is an environmentally friendly equipment with broad application prospects. It can effectively recover metal resources from waste circuit boards, reduce environmental pollution, and contribute to the sustainable utilization of resources. With the continuous advancement of technology and the improvement of policies, it is believed that the complete set of water selection and recycling equipment for waste circuit boards will be widely applied, bringing more benefits to our environment and society.