Efficient polyferric sulfate dissolving device

The utility model discloses an efficient dissolving device for polyferric sulfate. The device comprises a reaction kettle, the bottom of a liquid inlet pipe of the reaction kettle is fixedly connectedwith a flow guide pipe; a feeding groove is formed in the middle of the top cover; a first electromagnetic valve is arranged on the feeding groove; a plurality of spiral fins are fixedly connected tothe outer surface of the stirring roller, a filter device is installed on the liquid outlet pipe and comprises a first filter screen, a second filter screen and a filter element, the filter element is located between the first filter screen and the second filter screen, and the upper ends and the lower ends of the first filter screen and the second filter screen are connected with the inner wallof the filter device through fixing pieces. The utility model has the advantages that the structure is novel, the working efficiency of the device is improved; wherein the dissolved mixture is properly heated by the heating dev