Polycrystal mullite fiber module and preparation method thereof

The invention discloses a polycrystalline mullite fiber module and a preparation method, and relates to the technical field of polycrystalline mullite fiber module.The polycrystalline mullite fiber module comprises a module body, a first connecting plate, a second connecting plate, heat-resistant steel bars, connecting columns and separation ribs. By adopting a sol-gel method, the polycrystalline mullite fiber material has the advantages of good mechanical property, high conductivity, good high temperature resistance, good thermal shock resistance, good corrosion resistance and low thermal conductivity, and has a wider application range; every two adjacent module bodies in the left-right direction are connected together through the first connecting plate and the second connecting plate, the connecting stability of the module bodies is guaranteed, meanwhile, the two module bodies are buckled in the mounting grooves through the protruding blocks, horizontal sliding of the module bodies is avoided, the heat-resi