High-temperature melt consolidation coal gangue heavy metal foamed ceramic as well as preparation method and application thereof

The invention discloses a high-temperature melt consolidated coal gangue heavy metal foamed ceramic as well as a preparation method and application thereof, and belongs to the field of coal gangue heavy metal pollution prevention and preparation of sintered energy-saving building materials. The method comprises the following steps: screening waste glass and silicon carbide powder, and premixing to obtain a premix; then mixing the obtained premix with coal gangue, adding PVB (Polyvinyl Butyral) resin powder and water, fully and uniformly stirring, carrying out semi-dry pressing molding, and drying to obtain a green body; and finally, heating the obtained green body and foaming to obtain the high-temperature melt consolidated coal gangue heavy metal foamed ceramic. The preparation method is simple in process and suitable for large-scale production, the prepared foamed ceramic has high strength and low heat conductivity coefficient, and the problem of heavy metal harm of the coal gangue is effectively solved on