The QJB type submersible mixer is one of the key equipment in the water treatment process, capable of achieving uniform and flowing process requirements for the two-phase (solid-liquid) and three-phase (solid-liquid-gas) flows in the biochemical process. It consists of a submersible motor, impeller, and installation system. The submersible mixer features a direct-drive structure. Compared to traditional high-power motors that use a reducer to reduce speed, it offers advantages such as compact structure, low energy consumption, and ease of maintenance. The impeller is precision cast or stamp-formed, featuring high precision, strong thrust, and a streamlined, aesthetically pleasing design. This series is suitable for applications requiring solid-liquid mixing and blending.