Preparation process of manganese tailing concrete

The invention relates to a preparation process of manganese tailing concrete, which comprises a treatment unit and a preparation unit, the right end of the treatment unit is fixedly provided with the preparation unit, the treatment unit is used for crushing and grinding manganese tailings subjected to reduction reaction, so that the particles become small, and iron powder contained in the manganese tailings is subjected to magnetic separation; the manganese tailing slag does not contain iron any more, so that the quality of concrete prepared from the manganese tailing slag is affected, the concrete is prepared by mixing the manganese tailing slag and raw materials through the preparation unit, it is guaranteed that iron powder does not exist in manganese tailing slag powder particles any more through the treatment unit, and in the magnetic separation process, the quality of the concrete prepared from the manganese tailing slag is affected. The small-particle manganese tailing slag powder cannot be discharged