低阶煤显微组分浮选分离试验研究-矿业工程专业论文.docxVIP

内蒙 内蒙古科技大学硕士学位论文 PAGE PAGE III less than 1.35g/cm3, the flotation effect is better and floats in the vitrinite content is higher; analysis by orthogonal test table shows that the test results of flotation combined optimal factors into eleventh groups test the air intake, foaming agent, flotation collectors, flotation machine, flotation speed and dosage of surfactants are 120l/h, 0.12g/l, 0.12g/l, 1800r/min, 0.16g/l. To improve coal utilization efficiency, the micro components should be divided into coal, and the structure of coal is studied.. The low rank coal micro component can not only explain the problems in coal processing and utilization, but also promote the development of coal technology.. The important direction of coal chemistry and coal chemistry is to separate the micro components from the low rank coal coal mass.. The separation and enrichment of the micro components can solve the key and the foundation of the above problems. This paper through the hands of experiments to obtain relatively pure vitrinite and inertinite group two coal maceral, isolated from coal in various coal rock single component, on maceral composition, structure and properties were studied. The macerals of the industrial analysis and elemental analysis, and of the two components of the contact angle to research and analysis of coal and rock two micro group the difference by Raman spectroscopy, infrared spectroscopy, thermal gravimetric analysis, and other means. Two kinds of macerals on the difference through the above experimental research, after finally doing single factor experiment and orthogonal experiment, the study found that the best flotation separation process conditions of macerals for flotation single factor intake volume, the amount of foaming agent, collector dosage, speed, amount of surfactant, respectively, 120l/h 0.12g/l, 0.6g/l, 1600r/min, 0.12g/l, content is the largest float density less than 1.35g/cm3, the flotation effect is better and floats in t