Methanol desalted water proportioning, metering and mixing device

The utility model belongs to the technical field of methanol hydrogen production, and particularly relates to a methanol and desalted water proportioning, metering and mixing device which comprises an adjusting bin, a premixing connecting bin and a tail mixing bin which are distributed up and down, the bottom end of a desalted water bin is communicated with the premixing connecting bin, one side of the premixing connecting bin is communicated with a methanol bin, and the other side of the premixing connecting bin is communicated with a tail mixing bin. The methanol bin is communicated with the premixing connecting bin through a quantitative feeding bin and a feeding ring, a final mixing fan blade which slides up and down and is connected with a driving shaft of the adjusting bin is mounted in the final mixing bin, and a premixing fan blade is rotationally connected to the interior of the premixing connecting bin; after the final mixing fan blades are separated from the driving shaft of the driving motor, liqu