Sludge-based sample impurity separation equipment for heavy metal research

The utility model relates to the technical field of sludge sample impurity removal, in particular to sludge-based sample impurity separation equipment for heavy metal research. According to the technical scheme, the device comprises a solid-liquid separator, a slag discharging opening is formed in the tail end of the solid-liquid separator, a liquid discharging pipe is installed at the bottom of the solid-liquid separator, a feeding hopper is fixedly connected to the upper end of the solid-liquid separator, the solid-liquid separator is supported through a pair of fixed installation frames, a sieve plate is fixedly connected into the feeding hopper, leaking holes are evenly formed in the sieve plate, and the leaking holes are communicated with the solid-liquid separator. A conical column is fixedly connected between every two adjacent leaking holes, and a flushing mechanism is arranged above the feeding hopper. According to the utility model, the conical columns are fixed on the sieve plate for sludge filtrat