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The submersible agitator is compact in structure, easy to operate, convenient for maintenance, simple to install and service, and has a long service life. The blades have a self-cleaning function that prevents the entanglement and blockage by foreign substances. When used in conjunction with an aeration system, it can **reduce energy consumption, significantly increase the amount of oxygen that can be supplied, and effectively prevent sedimentation. The impeller is a very important component of submersible mixers, but abnormal damage to the impeller occurs for various reasons. Analysis results show that there are two main causes for this phenomenon. 1. Too small a distance between wings: When transporting granular materials and bulk solids, the excessive squeezing pressure resulting from too small a distance between the blades can cause damage to those blades. As the shaft rotates, even the thickest blades can suffer some degree of damage. Furthermore, if the pipe diameter is small, it will also lead to excessively high operating pressure and severe damage to the blades. This problem can be solved by reducing the speed ratio of the blades. 2. The feathers are too thin. Since the submersible mixer lacks an intermediate shaft, all stress points are on the blades; therefore, the thickness of these blades plays a very important role in the mixer’s performance. Therefore, selecting stirrer blades of appropriate thickness can **improve the performance of submersible stirrers. How to reduce the corrosion rate of the impeller of a submersible stirrer? 1. It is recommended to use 304 stainless steel for the material selection. This material provides excellent corrosion resistance for the equipment. 2. The impeller should be designed to prevent entanglement by water plants or fibers, and it must rotate smoothly and effortlessly without any jamming. 3. The manufacturing of impeller blades should meet the requirements regarding profile accuracy, high machining precision, clean surfaces, and low friction losses. 4. Spray the corrosion-resistant layer on the impeller. Impeller corrosion resistance spraying includes surface spraying and plasma spraying, etc. 5. The corrosion-resistant layer of the impeller can be electroplated. Electroplating of amorphous nickel alloys is a relatively successful surface anti-corrosion coating method in recent years. The above is my answer to this question. If you have any further questions, feel free to leave me a message or consult the Fengqiu Kri pump manufacturer online.