In today's rapidly developing technology era, the pace of electronic device upgrades is accelerating, and the number of waste circuit boards is also increasing. These waste circuit boards not only contain a large amount of recyclable metal resources, such as copper, aluminum, gold, and silver, but also contain some harmful substances. If not handled properly, they will cause serious environmental pollution. The emergence of a complete set of water selection equipment for recycling waste circuit boards has provided an effective solution to this problem. The complete set of water selection equipment for recycling waste circuit boards is a comprehensive device that integrates a variety of advanced technologies. It is mainly composed of a crushing system, a water selection system, and a separation system. First, the crushing system will preliminarily crush the waste circuit boards and break them down into smaller particles. This step is very crucial, as it can make the subsequent recycling process more efficient. After crushing, the circuit board particles are transported to the water selection system. The water selection system uses the differences in buoyancy and settling speed of different substances in water to separate the metal particles from the non-metallic particles. In this process, water plays an important role as a medium. It not only enables the separation of substances, but is also relatively environmentally friendly, reducing the dust pollution that may occur in traditional recycling methods. After water selection, the metal and non-metal particles will enter the separation system. The separation system will further refine the separation of these particles and extract different types of metals. In this way, various valuable metals in waste circuit boards are effectively recycled, greatly improving the utilization rate of resources. The application of the complete set of water selection equipment for recycling waste circuit boards has significant economic and environmental benefits. From the economic perspective, it can transform the metal resources in waste circuit boards into reusable raw materials, reducing the dependence of enterprises on primary mineral resources and saving production costs. At the same time, the recycled metals can be sold on the market, generating additional income for enterprises. From the environmental perspective, the equipment avoids the environmental pollution caused by the random disposal or improper handling of waste circuit boards. It reduces the pollution of heavy metals and other harmful substances to soil, water, and air, protecting the ecological environment and conforming to the concept of sustainable development. However, at present, the promotion and application of the complete set of water selection equipment for recycling waste circuit boards still face some challenges. For example, the investment cost of the equipment is high, and some small enterprises may find it difficult to afford it; some regions do not pay enough attention to the recycling of waste circuit boards and lack corresponding policy support. But with the continuous improvement of environmental awareness and technology, we believe that these problems will be gradually solved. The complete set of water selection equipment for recycling waste circuit boards is an innovative technology of great significance. It provides an efficient and environmentally friendly solution for the recycling and processing of waste circuit boards, playing an increasingly important role in the field of resource regeneration and environmental protection. We have every reason to believe that in the future, it will make greater contributions to promoting green development and building a beautiful home.