Abstract: In order to solve the problems of large circulating load of filtrate pump tank，low feed con⁃ centration，poor cleaning effect of ceramic filter and high labor intensity in the filtration system of iron con⁃ centrate in Chengchao Beneficiation Plant，the filtration system is systematically reformed.By optimizing the process pipeline direction of the filtrate pump tank，the pulp is first dehydrated by three-stage magnet⁃ ic separation and then sent to the filtration system，which improves the feed concentration of the filter.The slurry pump is replaced and the liquid level PID control is introduced to increase the filtered feed concen⁃ tration from 25% to 55%，which eliminates the overflow phenomenon of the pump tank. The internal wash⁃ ing process of ceramic filter is developed，and the automatic dosing cleaning system is matched to realize the automation of ceramic filter cleaning.After the transformation of the filtration system，the cost of clean⁃ ing agent is reduced by 20%，the number of filters is reduced，and the labor intensity of the post is signifi⁃ cantly reduced，which lays a foundation for the construction of“unattended factory”and has significant economic benefits.

Key words: filtration system, process piping, automatic cleaning, efficiency improvement