Composite Gel (High Water-Retention Hydrogel) (MAG-Ⅱ) fire prevention and extinguishing material is mixed with water in a certain proportion, it can form a viscous fire prevention and extinguishing gel within a few seconds. The formed gel has good fluidity and coverage in the initial stage, allowing it to spread and accumulate in limited spaces. As time goes on, the viscosity of the gel gradually increases, further exhibiting excellent adhesion and wall-hanging properties. It can form a dense, high-water-content gel protective layer on the surface of floating coal and between cracks, featuring superior functions of heat absorption, cooling, oxygen isolation, and temperature reduction, thus achieving a significant fire prevention and extinguishing effect.

Eakt Slurry Colloidal Foam (FJP-Ⅱ) was developed to address the problems of large-area coal spontaneous combustion in underground coal mine gobs and the difficulty in controlling hidden and unknown fire sources. Compared with the shortcomings of traditional yellow mud grouting, such as easy loss along gullies and inability to spread to high positions, Eakt Slurry Colloidal Foam enables yellow mud slurry to self-foam and generate inert gas by adding two components. The formed mud colloid can spread, accumulate and cover in the gob with foam as the carrier, which can bring more water and yellow mud slurry into the high, medium and low positions of the prevention and control space. It also has good accumulation performance, greatly improving the fire prevention and extinguishing effect.

To overcome the shortcomings of traditional yellow mud grouting or fly ash grouting, such as easy loss along gullies and inability to spread to higher positions, Yikete Mud Inhibiting Foam uses specialized equipment to convert yellow mud or fly ash into mud foam. The resulting mud inhibiting foam can spread, accumulate, and cover in the goaf with the foam as a carrier, bringing more water and yellow mud into the high, medium, and low positions of the treatment space. This technology integrates four prevention and control methods—mud, nitrogen, water, and inhibitor—utilizing the covering property of yellow mud, the suffocating property of nitrogen, the cooling property of water, and the inhibiting property of the inhibitor for joint treatment, greatly improving the effectiveness of fire prevention and extinguishing.

Technology is developed for the prevention and control of coal spontaneous combustion in areas such as goafs of steeply inclined working faces, goafs of upward/downward mining working faces, and fractured zones of roadway surrounding rocks, as well as for the sealing of air leakage channels like working face corners, support roofs, and shallow goafs behind supports.

JTF‑Ⅳ is designed to prevent coal spontaneous combustion in goafs and abandoned roadways. Composed of Materials A and B, it forms an inorganic high-water gel with low viscosity. The gel penetrates well, seals leaks, and cools fire zones effectively.

JTF-I uses microcapsule technology to overcome drawbacks of traditional mine fire control methods. Its gelling material is activated after foaming to achieve first foaming then gelling. This technology integrates the strengths of grouting, inert gas, gel, inhibitors and foam systems while avoiding their weaknesses.