Assembled extracting, mixing and clarifying device and application thereof

The invention provides an assembled extracting, mixing and clarifying device and application thereof.The device comprises an extracting and mixing tower, an extracting agent feeding pipe is arranged on the upper portion of the extracting and mixing tower, and at least one first atomizing nozzle is distributed on the portion, on the upper portion of the inner side of the extracting and mixing tower, of the extracting agent feeding pipe; the extraction mixing tower is also connected with a to-be-extracted material feeding pipe, and the to-be-extracted material feeding pipe enters from the side surface of the mixing tower and is communicated with a plurality of second atomizing nozzles; the bottom of the extraction mixing tower is connected with a clarifying tank, the upper part of the clarifying tank is provided with an overflow pipeline, and the bottom is provided with a raffinate discharge pipeline. A traditional liquid-liquid mixed extraction mode is changed, an extraction agent and a to-be-extracted materia