Method for preparing high-performance sagger from metallurgical slag

The invention relates to the technical field of sagger processing, in particular to a method for preparing a high-performance sagger by using metallurgical slag, which comprises the following steps: S1, preparing cordierite with the granularity of 1-2mm by using metallurgical slag; s2, aggregate mullite with the particle size of 0.06-1.18 mm, cordierite and deionized water are added into a stirring machine, the mass ratio of the aggregate mullite to the cordierite to the deionized water is 50: 5: 3, premixing is conducted for 10-15 min, and mixed aggregate is prepared; when the cordierite sagger is used, the cordierite is prepared from the metallurgical slag, resource waste and environmental pollution can be reduced, cyclic utilization of resources can be promoted, contribution is made to economic green transformation and sustainable development of the environment, the cordierite and the mullite are mixed according to the proportion to prepare the sagger, the advantages can be made up for complementing the di