In today's society, the rapid replacement of electronic devices has led to the generation of a large number of waste circuit boards. If these waste circuit boards are not properly handled, they will not only cause serious environmental pollution but also waste a large amount of valuable metals contained therein. The emergence of water selection recycling equipment for waste circuit boards has undoubtedly provided a powerful means to solve this problem, becoming an environmental ambassador for turning waste into treasure. The working principle of the water selection recycling equipment for waste circuit boards is quite ingenious. It uses the buoyancy of water and the differences in density of different substances to separate various components in waste circuit boards through a series of sorting processes. First, the waste circuit boards are placed into water. Plastic and glass on the circuit boards, which are lighter substances, will float on the water surface, while metals and other heavier substances will sink to the bottom of the water. Then, through specific equipment and technologies, the substances floating on the water surface and those sinking to the bottom of the water are collected and processed separately. This equipment has many significant advantages. Firstly, it can efficiently recover metals from waste circuit boards. Common waste circuit boards contain copper, tin, lead and other valuable metals. Through the processing of the water selection recycling equipment, the recovery rate of these metals can reach a high level, greatly improving the utilization efficiency of resources. Secondly, it has outstanding environmental performance. Compared with traditional waste circuit board treatment methods, the water selection recycling equipment does not produce a large amount of waste gas, waste residue and wastewater during the processing, with minimal environmental pollution, meeting the requirements of modern society for environmental protection. Thirdly, it has a high degree of automation. The entire equipment adopts advanced automation control systems, which can achieve continuous operation and greatly improve production efficiency, reducing labor costs. In practical applications, the water selection recycling equipment for waste circuit boards plays an important role. It can be applied in electronic waste processing plants, circuit board production enterprises and other places to carry out centralized processing and recycling of waste circuit boards. Through the processing of this equipment, not only can enterprises bring certain economic benefits, but also contribute to environmental protection. For example, after a certain electronic waste processing plant introduced the water selection recycling equipment for waste circuit boards, it can recover a large amount of metals every year and reduce environmental pollution, which has been widely recognized by society. However, the promotion and application of the water selection recycling equipment for waste circuit boards still face some challenges. On the one hand, the cost of the equipment is high, and for some small enterprises, it may be difficult to purchase and use this equipment. On the other hand, people's awareness of waste circuit board recycling is not strong enough, and it is necessary to strengthen publicity and education to increase public attention to waste circuit board recycling. In summary, the water selection recycling equipment for waste circuit boards is an important environmental protection technology. With its advantages of high efficiency, environmental protection and automation, it provides a reliable solution for the processing and recycling of waste circuit boards. With the continuous progress of technology and the gradual reduction of costs, it is believed that this equipment will be more widely used in the future and make greater contributions to the realization of resource recycling and environmental protection.