硅酸盐通报2017，Vol.36Issue(5)：1499-1504,1517,7.
封堵高温裂隙的水泥基泡沫流体耐热性研究
Heat Resistance of Foam Cement Fluid for Sealing High Temperature Fracture
摘要
Abstract
The fractures with high temperature formed by heat damage of coal and rock are the main causes to the evolution and spread of the coal fire.The foam cement fluid is a new type material for preventing and controlling the coal and rock fractures with high temperature.The heat resistant property of foam fluid is the important technical parameters.Based on homemade testing system for foam fluid heat insulation performance, the thermal insulation property of foam fluid with different bracket height (2 cm, 7 cm, 12 cm, 17 cm, 22 cm) and injection thickness (20 mm, 40 mm, 60 mm, 80 mm) were tested.It is concluded that with the increase of test time, the cold surface temperature of all the foam fluids increase from 20 mm to 80 mm, however, the slope of temperature rise curve is bigger within the test time of 0-90 s.The distribution of heat insulation temperature is in a curved surface as a whole.Then the relations of thermal insulation temperature, injection thickness and hot surface temperature were fitted.Under the condition of heating, the morphology change of bubble liquid film shows that the foam fluid is unstable at 200 ℃.The effects that heating on drainage rate of liquid film were studied from three aspects including surface tension, viscosity of liquid film substrate and free water content.关键词
高温裂隙/封堵/隔热/热稳定性Key words
high temperature fracture/sealing/thermal insulation/thermal stability分类
矿业与冶金引用本文复制引用
鲁义,秦波涛,王海桥,叶青..封堵高温裂隙的水泥基泡沫流体耐热性研究[J].硅酸盐通报,2017,36(5):1499-1504,1517,7.基金项目
国家自然科学基金资助项目(51604110,U1361118,51504093,51374003) （51604110,U1361118,51504093,51374003）
教育部高等学校特色专业建设点项目(TS11624) （TS11624）
