Solvent proportioning device for preparing composite carbon source

The utility model discloses a solvent proportioning device for preparing a composite carbon source, relates to the technical field of composite carbon sources, and aims to solve the problem that the working efficiency is limited due to the fact that the reaction rate of materials cannot be controlled and proportioning and reaction operations need to be carried out separately when the existing composite carbon source is proportioned and manufactured. The second inner cavity is formed in the composite carbon source matching main body, a center rotating shaft is arranged in the second inner cavity, a fixed connecting rod piece is arranged at one end of the center rotating shaft, two electric control fixing rods are arranged at the two ends of one side of the fixed connecting rod piece, and the two electric control fixing rods are arranged in the center rotating shaft. Two electric control telescopic connecting rods are arranged at one ends of the two electric control fixing rods, inner box bodies are arranged at