In today's era of rapid technological development, electronic products are constantly being updated, and the amount of waste circuit boards generated is also increasing day by day. 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 has provided an effective way to solve this problem. The complete set of water selection and recycling equipment for waste circuit boards is a high-tech device specifically used to process waste circuit boards. It mainly consists of several parts, including a crushing system, a screening system, a flotation system, a dewatering system, and a control system. First, the waste circuit boards are crushed into smaller particles by the crushing system for subsequent processing. Then, the screening system screens the crushed circuit board particles according to their size, separating out impurities that do not meet the requirements. Next, the flotation system uses the difference in buoyancy of different substances in water to separate the metals from the non-metals in the circuit boards. By adding specific flotation reagents, the metal particles will adhere to the bubbles and float to the surface of the water, while the non-metals will sink to the bottom of the water, thereby achieving the recovery of metals. Finally, the recovered metals are dewatered by the dewatering system to meet the standards for reuse. The complete set of water selection and recycling equipment for waste circuit boards has many advantages. It not only can efficiently recover metal resources such as copper, gold, silver, and tin from waste circuit boards, but also can effectively reduce environmental pollution. During the processing, water can be recycled, reducing the waste of water resources. At the same time, the equipment adopts automatic control technology, is simple to operate, and runs stably, improving production efficiency. In addition, the complete set of water selection and recycling equipment for waste circuit boards also has broad application prospects. With the continuous updating and replacement of electronic products, the number of waste circuit boards will increase, and their effective recycling and utilization will become an important development direction for the future environmental protection industry. The equipment can be applied in many fields, such as electronic waste treatment plants, circuit board production enterprises, and metal recycling enterprises, bringing considerable economic and environmental benefits to these enterprises. However, the complete set of water selection and recycling equipment for waste circuit boards also faces some challenges in its promotion and application. On the one hand, the composition of waste circuit boards is complex, and different types of circuit boards require different processing methods, which increases the difficulty of equipment research and development and application. On the other hand, the investment cost of the equipment is high, and for some small and medium-sized enterprises, there may be certain financial pressures. To solve these problems, the joint efforts of governments, enterprises, and scientific research institutions are needed. Governments can introduce relevant policies and regulations to increase support for the waste circuit board recycling and utilization industry and encourage enterprises to carry out technological innovation and equipment research and development. Enterprises can strengthen cooperation with scientific research institutions to improve their own technical level and innovation ability and reduce the cost of equipment. Scientific research institutions can increase research efforts on waste circuit board processing technology and develop more efficient, environmentally friendly, and economical processing processes and equipment. The complete set of water selection and recycling equipment for waste circuit boards is a green tool for turning waste into treasure, providing an effective way to solve the problem of waste circuit board processing. Although it faces some challenges in its promotion and application, as long as governments, enterprises, and scientific research institutions work together, I believe it will play a more important role in the future environmental protection industry.