In today's era of rapid technological development, electronic devices are constantly being updated, and the number of waste circuit boards is also increasing. These waste circuit boards contain a large amount of valuable metal resources, such as copper, gold, and silver. If they can be effectively recycled and reused, it will not only reduce dependence on natural resources, but also reduce environmental pollution and achieve sustainable development. The emergence of water selection recycling equipment for waste circuit boards provides strong support for achieving this goal. The water selection recycling equipment for waste circuit boards is a device specifically used to process waste circuit boards. It separates the metals and non-metallic components in the circuit boards through a series of physical and chemical methods, enabling the recycling and reuse of metals. The equipment is mainly composed of a feeding system, a crushing system, a screening system, a water selection system, a flotation system, a concentration system, and a dewatering system. In the feeding system, the waste circuit boards are transported to the crushing system for crushing, turning them into smaller particles. Then, the crushed circuit boards enter the screening system, where they are divided into different particle sizes by screens with different apertures. Next, the water selection system uses the buoyancy and friction of water to separate the light impurities and heavy impurities from the circuit boards. The flotation system adds flotation reagents to form a hydrophobic film on the surface of the metal particles, thereby achieving the separation of metals and non-metals. The concentration system and dewatering system respectively concentrate and dewater the products after flotation, obtaining the final metal concentrate and tailings. The water selection recycling equipment for waste circuit boards has many advantages. Firstly, it adopts advanced physical and chemical separation technologies, which can effectively recover the metal resources in waste circuit boards with high recovery rate and high purity. Secondly, the equipment has a high degree of automation, simple operation, and stable operation, which can greatly improve production efficiency and reduce labor intensity. In addition, the equipment also has the characteristics of good environmental performance. During the processing, it will not produce secondary pollution and meet national environmental protection standards. The application prospects of the water selection recycling equipment for waste circuit boards are very broad. With the continuous updating of electronic devices, the number of waste circuit boards will increase, and the demand for metal resources will also increase. Therefore, the market demand for water selection recycling equipment for waste circuit boards will continue to increase. At the same time, with the continuous improvement of environmental awareness, more and more enterprises and governments will pay attention to the recycling and utilization of waste circuit boards, which will also provide a good opportunity for the development of water selection recycling equipment for waste circuit boards. The water selection recycling equipment for waste circuit boards is a green environmental protection and resource recycling tool. Its emergence provides an efficient, environmentally friendly, and economical solution for the recycling and utilization of waste circuit boards. With the continuous progress of technology and the continuous improvement of environmental awareness, it is believed that the water selection recycling equipment for waste circuit boards will be more widely used and developed, making a greater contribution to sustainable development.