控制煤尘的泡沫溶胶性能研究

Study on the performance of foam-sol by suppressing coal dust

为研究控制煤尘的泡沫溶胶的性能,运用胶粘剂拉伸剪切试验机对由添加3‰胶粘剂的泡沫溶胶溶液浸泡后的煤样进行了剪切、拉伸实验;利用电热鼓风干燥箱对泡沫溶胶溶液的不挥发份容量比和质量比进行了实验;对水、水性泡沫和泡沫溶胶吸附煤尘的效率进行了对比实验;对原煤和用泡沫溶液浸泡过的煤样进行了燃烧热测定.实验得出泡沫溶胶粘结煤尘的剪切力为0.069 kN,拉伸力为0.102 kN,在6级风力条件下不会扬尘;泡沫溶胶溶液不挥发份的容量比和质量比分别为37.1%和30.54%;水、水性泡沫和泡沫溶胶吸附煤尘的效率分别为20.03%,60.09%和90.20%;用泡沫溶胶浸泡过的煤样与原煤燃烧热值相比减少了0.89%.

To study on the performance of foam-sol by suppressing coal dust,adhesive shear and tensile forces testing machine is used to conduct shear and tensile forces experiment on coal samples soaked by foam-sol solution added 3‰ adhesive; the non-volatile capacity ratio and mass ratio of foam-sol solution are tested with electrothermal blowing dry box; comparative experiment on adsorption effects of water,foam and foam-sol within 10 min on coal dust with particle size of less than 0. 01 mm,using the self-designed foam-sol adsorption coal dust device; comparative experiment on combustion heat of raw coal and coal soaked by foam-sol solution using calorimeter. It is obtained from the experiments that the shear forces and tensile forces of foam-sol adhering dust are respectively 0. 069 kN and 0. 102 kN,and dust will not be produced under the conditions of 6 degree wind; the non-volatile capacity ratio and mass ratio of foam-sol solution are respectively 37. 1% and 30.54%; adsorption efficiencies of water,foam and foam-sol are respectively 20. 03%,60. 09% and 90. 20%; the combustion heat of coal soaked by foam-sol solution decreases 0. 89% than that of raw coal.