Characteristics of Foamed Gel for Coal Spontaneous Combustion Prevention and Control

摘要: ABSTRACTFoamed gel, a new technology for preventing and controlling coal mine fires, was put forward developed in order to overcome the deficiency of fire-fighting technologies materials mines. The properties adhesiveness, permeability, cementation, plugging foamed gel have been experimentally studied. It can be shown from results that apparent viscosity reaches 7274 mPa·s, 18 times stock solution. permeability is 33.84%, 2.35 1.65 water common foam, respectively. Furthermore, time reaching maximum only 40 min, half foam. One day later, weight slack coagulated by 57–93.8% sample, it still 13.4–52.6% after 10 days. cannot fill fractures among block air leakage, but also endure wind pressure over 2500 Pa. Thus, effectively prevent control coa...