Online filtering device matched with metal solvent extraction tank

The invention provides an online filtering device matched with a metal solvent extraction tank, and relates to the technical field of extraction and impurity removal, the online filtering device is used for being connected with the extraction tank, the online filtering device comprises an inlet pipe, an outlet pipe, a self-suction diaphragm pump and a filter, the inlet pipe is communicated with the filter, the self-suction diaphragm pump is communicated with the inlet pipe, the filter is further communicated with the outlet pipe, and the outlet pipe is communicated with the self-suction diaphragm pump. The filter is configured to separate a solid-liquid mixture extracted from the inlet pipe, and the outlet pipe is used for sending the separated liquid back to the water phase region of the extraction tank. According to the online filter of the extraction tank, solids are cleaned on the basis of the online filter under the condition that production is not affected, and the risk that a large number of solid crys