Goaf carbon dioxide mineralization grouting filling fire preventing and extinguishing system

The utility model discloses a goaf carbon dioxide mineralization grouting filling fire preventing and extinguishing system, belongs to the technical field of goaf treatment, and solves the problems of how to improve the supporting strength of goaf filling gangue and realize CO2 mineralization in the prior art. The device comprises a slurry preparation system, a filling system and a pipe supporting grouting system, the slurry preparation system comprises a conveying mechanism, a storage mechanism, a stirring mechanism and a material mixing mechanism, the stirring mechanism is connected with the material mixing mechanism through a connecting device, and the filling system comprises a filling driving device and a slurry filling pipeline. The filling system is connected with the pipe-supporting grouting system through a grout filling pipeline, the pipe-supporting grouting system comprises a carbon dioxide conveying pipeline and a goaf pre-buried pipe, and gas emission holes are formed in the goaf pre-buried pipe.