With the widespread use and rapid replacement of electronic devices, the number of waste circuit boards is increasing day by day. 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 utilized, it will not only reduce resource waste but also reduce environmental pollution. The emergence of water selection recovery complete sets of equipment for waste circuit boards has provided strong support for achieving this goal. The water selection recovery complete sets of equipment for waste circuit boards are a kind of advanced technological equipment specifically used to process waste circuit boards. It mainly consists of several parts, including a crushing and screening system, a flotation system, and a dewatering system. First, the waste circuit boards are crushed into smaller particles by the crushing and screening system and then separated into different sizes by a screening device. Next, these particles are sent to the flotation system, where metal minerals and gangue minerals are separated under the action of flotation reagents. Finally, the products after flotation are dewatered by the dewatering system to obtain high-purity metal concentrates and other useful substances. This complete set of equipment has many advantages. Firstly, it adopts water selection technology, which is more environmentally friendly than traditional methods such as pyrometallurgy. During the water selection process, a large amount of waste gas, waste residue, and wastewater are not generated, reducing environmental pollution. Secondly, the equipment has high recovery capacity. It can effectively recover various metals in waste circuit boards with a high recovery rate, greatly improving resource utilization. Thirdly, the equipment is simple to operate and highly automated, reducing labor costs and labor intensity. The application prospects of the water selection recovery complete sets of equipment for waste circuit boards are very broad. In the current context of global resource shortages and environmental protection, the recycling and utilization of waste circuit boards has become an inevitable trend. The promotion and application of this complete set of equipment will help promote the resource utilization of waste circuit boards and promote sustainable development of resources. At the same time, it will also bring good economic and social benefits to related enterprises. However, the water selection recovery complete sets of equipment for waste circuit boards also face some challenges in the process of promotion and application. For example, the sources of waste circuit boards are complex and their compositions are diverse, which brings certain difficulties to the processing of the equipment. In addition, the maintenance and management of the equipment also require professional technicians and certain financial investment. In order to overcome these challenges, we need to take a series of measures. On the one hand, we should strengthen the classification and management of waste circuit boards and improve their quality and recyclability. On the other hand, we should increase the research and development and innovation of water selection recovery complete sets of equipment for waste circuit boards to improve their performance and reliability. At the same time, the government should also introduce relevant policies to support and encourage enterprises to recycle and utilize waste circuit boards and promote the healthy development of the industry. The water selection recovery complete sets of equipment for waste circuit boards are an important environmental protection and resource recovery innovative technology equipment. Its emergence provides a new way to solve the problem of processing waste circuit boards. Although there are some challenges in the process of promotion and application, as long as we take effective measures and constantly improve and innovate, I believe it will play an important role in the future field of resource recovery and contribute to the sustainable development of resources.