Method and device for testing influence of tailing pond backwater on beneficiation indexes

The invention discloses a method and a device for testing the influence of tailings pond backwater on beneficiation indexes, relates to the field of mining industry, and is based on the device for testing the influence of tailings pond backwater on the beneficiation indexes, the device comprises a spiral classifier and a water tank for supplying water to the spiral classifier, comprising the following steps that water is supplied to a spiral classifier through first classification water in a water tank so as to achieve classification mineral separation, and classified minerals are detected through a detection mechanism so as to obtain a first detection result; the water tank and the spiral classifier are cleaned; water is supplied to the spiral classifier through second classification water in the water tank so as to achieve classification mineral separation, and the classified minerals are detected through the detection mechanism so as to obtain a second detection result; the detection and cleaning are repea