Liquid measuring and adding device of mixing plant

The utility model discloses a liquid measuring and adding device of a mixing plant. The liquid measuring and adding device of the mixing plant comprises a measuring tank body, wherein electronic scales for weighing liquid are arranged on the measuring tank body; a liquid inlet pipe is arranged at the upper part of the measuring tank body; a liquid outlet pipe is arranged at the lower part of the measuring tank body; the measuring tank body is a sealed tank body; a gas inlet pipe and a blowoff valve are arranged at the upper part of the measuring tank body; and the gas inlet pipe is connected with a gas source through a gas inlet valve. The liquid measuring and adding device of the mixing plant has the characteristics of simple structure, low cost, high liquid conveying pressure, high speed, no liquid residue in the tank body and the like.