Rapid filling material for local points of mine and preparation method of rapid filling material

• Main Authors: WANG ZHENPING, SHENG YOUJIE, PENG YUNCHUAN, LIU SHIJIAN, LIU XIXI, SONG XIANMING, SONG YAN, LI XIA
• Format: Patent
• Language: Chinese; English
• Published: 11.08.2023
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; EARTH DRILLING; FIXED CONSTRUCTIONS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MINING; ORGANIC MACROMOLECULAR COMPOUNDS; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The invention provides a filling material for local points of a mine. The filling material comprises the following components in parts by mass: 30-50 parts of polyisocyanate, 20-40 parts of polyol, 0.1-3 parts of a catalyst, 0.1-3 parts of a foam stabilizer, 1-5 parts of an opening agent, 1-10 parts of a foaming agent, 1-10 parts of a flame retardant and 1-10 parts of water. The filling material disclosed by the invention is good in stability, adjustable in slurry density, adjustable in coagulation time, strong in fluidity, higher in material utilization efficiency and not easy to precipitate in a pipeline to block the pipeline in a pipeline conveying process, the raw materials which are very cheap and easy to obtain are used, the manufacturing cost of the material is remarkably reduced, and the filling material is of a foam porous structure, so that the filling material is more environment-friendly. The material strength is guaranteed, meanwhile, the energy utilization rate is greatly increased, good anti-cr