Today, with electronic waste piling up at an alarming rate, discarded circuit boards have become urban "electronic mines," which not only conceal precious metal resources but also pose potential environmental pollution risks. How to efficiently and environmentally recover this special "mine" has become an important issue in the field of resource recycling. The complete set of water-based separation equipment for recycling waste circuit boards is an innovative solution to this challenge, serving as a precise "surgical knife" that realizes the transformation of waste into treasure through green physical separation processes. The core principle of this equipment lies in its ingenious utilization of the differences in hydrodynamics and material physical properties. The process is interconnected: After coarse crushing, the circuit board fragments enter the hydrocyclone, where under centrifugal force, metals with higher density (such as copper, gold, and silver) are enriched in the underflow, while lighter non-metallic materials (mainly resins and fiberglass) are discharged with the overflow. Subsequently, the metal-rich fraction is subjected to fine sorting using shaking tables or jig concentrators to further purify valuable metals. Throughout the entire process, only water is used as the medium, without adding any chemical reagents, thereby eliminating the secondary pollution caused by traditional methods such as acid leaching and incineration at the source. Compared with traditional recycling methods, the advantages of water-based separation technology are significant. Firstly, it is highly environmentally friendly. The wet separation effectively suppresses dust emissions and protects the health of operators; the closed water circulation system greatly reduces wastewater discharge and lowers processing costs. Secondly, it achieves high resource recovery rates. For circuit boards with a metal content of up to 40%, water-based separation can achieve a metal recovery rate of over 95% with a metal grade of 90%, providing high-quality raw materials for subsequent smelting. Thirdly, the equipment is highly adaptable, allowing flexible processing of circuit board fragments of different sizes and compositions by adjusting parameters such as water flow velocity and inclination angle. Most importantly, the separated non-metallic powder is not waste material. After modification, it can be used as filler in industries such as construction materials and plastics, truly achieving "fully utilized resource utilization." However, technological improvement is an endless process. At present, water-based separation technology still faces challenges such as fine metal loss and water consumption. Future innovation directions will focus on intelligent sorting and water conservation optimization: for example, introducing image recognition technology to analyze the composition of input materials in real time and dynamically adjust sorting parameters; developing high-efficiency flocculants and membrane separation technologies to achieve near-zero wastewater discharge; and exploring the coupling with technologies such as vortex separation and electrostatic separation to build a multi-level precision recovery system. These upgrades will not only enhance recovery efficiency but also promote the development of intelligent and intensive equipment. From a macro perspective, the significance of the complete set of water-based separation equipment for recycling waste circuit boards goes far beyond the technology itself. It is a vivid practice of the circular economy concept, reconstructing the "resource-product-waste" linear consumption model into a closed loop of "resource-product-renewable resource." Every ton of circuit boards recycled saves hundreds of tons of primary ore mining and reduces tons of carbon dioxide emissions. This seemingly cold steel device is actually a green bridge connecting waste and new life, pollution and cleanliness, silently guarding our green water and mountains. In summary, the complete set of water-based separation equipment for recycling waste circuit boards, with its clean, efficient, and resource-oriented characteristics, provides a reliable path for the management of electronic waste. It is not only a manifestation of technological progress but also an important support for ecological civilization construction. With continuous technological iteration and deepening of environmental awareness, this equipment will undoubtedly enjoy broader application prospects and continue to shine brightly on the journey of sustainable resource utilization.