In today's era of rapid technological development, electronic devices are updated and replaced at a rapid pace, which in turn generates a large number of waste circuit boards. If these waste circuit boards are not handled properly, they will not only cause a huge waste of resources, but also pose a serious threat to the environment. However, with the advancement of technology, the emergence of water selection recycling equipment for waste circuit boards has provided an effective solution to this problem. The water selection recycling equipment for waste circuit boards is an advanced device specifically designed for processing waste circuit boards. It mainly consists of several parts, including a crushing system, a grinding system, a screening system, a magnetic separation system, a flotation system, and a dewatering system. First, the waste circuit boards are fed into the crushing system, where they are processed into smaller particles after crushing. Then, these particles enter the grinding system to be further ground into finer powders. Next, the powder passes through the screening system, where the metal and non-metal particles are separated. The metal particles are adsorbed onto the magnetic separator by the magnetic separation system, while the non-metal particles are separated by flotation in the flotation system. Finally, the processed metal and non-metal particles are respectively fed into the dewatering system for dewatering treatment to obtain the final recycled products. The water selection recycling equipment for waste circuit boards has many advantages. Firstly, it can effectively recover the metal resources in waste circuit boards, such as copper, gold, silver, and tin, realizing the reuse of resources and reducing resource waste. Secondly, it adopts the water selection method, which is environmentally friendly and will not produce a large amount of exhaust gas, wastewater, and waste residue, meeting environmental protection requirements. In addition, the equipment has a high degree of automation, simple operation, and high production efficiency, which can reduce production costs and improve the economic benefits of enterprises. However, the water selection recycling equipment for waste circuit boards also faces some challenges in the process of promotion and application. On the one hand, the sources of waste circuit boards are relatively scattered and difficult to collect, requiring the establishment of a perfect recycling system. On the other hand, the investment cost of the equipment is high, which may pose certain economic pressure for some small and medium-sized enterprises. In addition, the composition of waste circuit boards is complex and difficult to process, requiring continuous technological innovation and improvement. In order to promote the wide application of the water selection recycling equipment for waste circuit boards, the government and enterprises should work together. The government should strengthen the supervision of the recycling and processing of waste circuit boards and encourage enterprises to carry out the business of recycling and processing waste circuit boards. Enterprises should increase the investment in research and development of the water selection recycling equipment for waste circuit boards, improve the performance and stability of the equipment, and reduce the cost of the equipment. At the same time, enterprises should also strengthen cooperation with scientific research institutions, continuously carry out technological innovation and improvement, and improve the recycling and utilization rate of waste circuit boards. The water selection recycling equipment for waste circuit boards is a green technology with broad application prospects. Its emergence provides an effective solution to the problem of processing waste circuit boards, realizes the reuse of resources, and reduces environmental pollution. Although there are still some challenges in the process of promotion and application, as long as the government and enterprises work together and continuously carry out technological innovation and improvement, the water selection recycling equipment for waste circuit boards will surely be widely applied and make an important contribution to building a resource-saving and environmentally friendly society.