In today's era of rapid technological development, the pace of electronic product updates is increasingly fast, and the resulting number of waste circuit boards is also increasing. If these waste circuit boards are not handled properly, they will not only cause a huge waste of resources, but also cause serious environmental pollution. The emergence of the water selection and recycling equipment for waste circuit boards is like a magical key that opens a new door to solving this problem. The water selection and recycling equipment for waste circuit boards is a comprehensive device that integrates multiple advanced technologies. It is mainly composed of a crushing system, a screening system, a water selection system, and other components. First, the crushing system will conduct a preliminary crushing process on the waste circuit boards, breaking them down into particles of appropriate sizes. This step is like disassembling a complex "building" into blocks, laying the foundation for subsequent recycling work. Next, the screening system will screen the crushed particles, separating them into different sizes. This helps to improve the efficiency and purity of subsequent recycling. The water selection system is the core part of this equipment. During the water selection process, the metal and non-metal materials in the waste circuit boards are separated based on the principle that different substances have different buoyancy and settling speed in water. Metal materials, due to their higher density, will settle to the bottom of the water, while non-metal materials will float on the water surface, thereby achieving effective separation of metals and non-metals. The emergence of this equipment is of great significance. From the perspective of resource utilization, it can recycle and reuse various valuable metals such as copper, aluminum, gold, and silver in waste circuit boards. These metals are precious natural resources. Through recycling and reuse, we can reduce the mining of primary minerals and reduce resource consumption. According to statistics, the amount of copper recovered from one ton of waste circuit boards is equivalent to the amount of copper obtained from mining dozens of tons of copper ore. This not only saves resources but also reduces production costs. From the perspective of environmental protection, waste circuit boards contain a large number of harmful substances such as lead, mercury, and cadmium. If they are discarded or handled improperly, these harmful substances will seep into the soil and water sources, causing serious damage to the ecological environment. However, the water selection and recycling equipment for waste circuit boards currently faces some challenges in the process of promotion and application, such as high equipment costs and the need for further improvement of recycling technology. But we have reason to believe that with the continuous progress of technology and the increasing awareness of environmental protection, the water selection and recycling equipment for waste circuit boards will be more widely used and make greater contributions to the realization of resource recycling and environmental protection. Let's look forward to this technological tool shining even brighter in the future and truly turning waste circuit boards into valuable resources.