Manufacturing method of inorganic dolomite magnesia fireproof gel material

The invention relates to a manufacturing method of an inorganic dolomite magnesia fireproof gel material, which comprises the following step that 100 to 200 parts by weight of dolomite powder, 20 to 100 parts by weight of dilute sulphuric acid, 25 to 56 parts by weight of light calcined magnesia, 10 to 15 parts by weight of magnesium sulfate, 1 to 3 parts by weight of auxiliary additives waterproofing agent, 0.2 to 18 parts by weight of water-based foaming agent, 2 to 3 parts by weight of catalyst, 0.15 parts by weight of inhibitor, 20 to 100 parts by weight of lightweight filler plant fiber powder, 6 to 24 parts by weight of perlite, 3 to 12 parts by weight of polystyrene granule, 10 to 45 parts by weight of clean water and 15 to 65 parts by weight of equipment washing water slurry are prepared in accordance with manufacturing procedures. The invention aims to provide the novel inorganic dolomite magnesia fireproof gel material which has the advantages of high strength, no chloride ion, A-level fire protection, water resistance, high frost resistance, energy saving, heat preservation, excellent comprehensive performance and low cost.