Fire extinguishing material for shallow goaf of coal field fire area and preparation method of fire extinguishing material

The invention discloses a fire extinguishing material for a shallow goaf of a coal field fire area and a preparation method of the fire extinguishing material. The fire extinguishing material comprises the following raw materials in parts by weight: 25-35 parts of loess, 8-12 parts of water, 25-50 parts of suspended sand particles, 10-20 parts of an inorganic fire preventing and extinguishing material, 15-30 parts of a fire extinguishing curing expansion material and 5-10 parts of a polymer solid fire extinguishing material. The prepared fire extinguishing material for the coal field fire zone shallow goaf is good in filling performance, flowing performance and water retention performance, the temperature of the coal field fire zone can be rapidly reduced, air flowing is effectively prevented, accordingly, further combustion of the coal field fire zone shallow goaf is prevented, damage of combustion of the coal field fire zone shallow goaf to the atmospheric environment is reduced, and meanwhile the fire exti