【摘要】：煤炭是中國的主要工業(yè)原料，并且以低煤化度煤炭為主，中國低階煤的主要成分中惰質(zhì)組分含量比較高。例如神府補(bǔ)連塔煤中惰質(zhì)組含量30%～70%，含量較高的惰性組分，對于煤炭的深加工利用例如煉焦、液化等都會產(chǎn)生不利影響，為了提高煤炭利用效率，應(yīng)把各顯微組分從煤中分出來，并對煤炭的組成、結(jié)構(gòu)進(jìn)行研究。低階煤顯微組分分離不但能把煤炭加工利用中所出現(xiàn)的問題做出解釋，還可以促進(jìn)煤炭技術(shù)發(fā)展。當(dāng)今煤巖學(xué)和煤化學(xué)研究的重要方向是從低階煤煤體中分離出各顯微組分。顯微組分的分離富集，可以解決上述問題的關(guān)鍵和基礎(chǔ)。 本文通過手選實(shí)驗(yàn)獲得較純的鏡質(zhì)組與惰質(zhì)組兩種煤巖顯微組分，從煤中分離獲得的各種煤巖單組分，對顯微組分組成、結(jié)構(gòu)和性質(zhì)進(jìn)行研究。本文做了顯微組分的工業(yè)分析、元素分析，，并對兩種組分的接觸角進(jìn)行研究以及利用拉曼光譜、紅外光譜、熱重分析等多種手段分析煤巖兩種顯微組分的區(qū)別。 通過以上實(shí)驗(yàn)研究得到兩種顯微組分上的差異，最后在做了單因素實(shí)驗(yàn)以及正交實(shí)驗(yàn)研究之后發(fā)現(xiàn)最佳浮選分離顯微組分的工藝條件為：浮選單因素進(jìn)氣量、起泡劑用量、捕收劑用量、轉(zhuǎn)速、表面活性劑用量分別為，120L/h、0.12g/L、0.6g/L、1600r/min、0.12g/L時(shí)，含量最多的成分是浮物密度級小于1.35g/cm3的成分，說明浮選效果是比較好的而且浮物中鏡質(zhì)組含量較高；由浮選正交試驗(yàn)結(jié)果表分析可知試驗(yàn)最佳因素組合為第十一組試驗(yàn)進(jìn)氣量、起泡劑、浮選捕收劑、浮選機(jī)的轉(zhuǎn)速、浮選表面活性劑用量依次是120L/h、0.12g/L、1.2g/L、1800r/min、0.16g/L時(shí)。
[Abstract]:Coal is the main industrial raw material in China, and the main content of inertinite in the main components of low rank coal in China is relatively high. For example, in Shenfu Bulianta coal, the content of 30% or 70% of the inertinite group, and the higher content of the inert component, will have adverse effects on the further processing and utilization of coal, such as coking and liquefaction, etc., in order to improve the efficiency of coal utilization, The macerals should be separated from coal and the composition and structure of coal should be studied. The separation of low rank coal macerals can not only explain the problems in coal processing and utilization, but also promote the development of coal technology. At present, the important direction of coal petrology and coal chemistry is to separate the macerals from low rank coal bodies. The separation and enrichment of macerals can solve the problems mentioned above. In this paper, two kinds of coal and rock macerals, vitrinite and inertinite, are obtained by hand selection experiment. The composition, structure and properties of each kind of coal and rock are studied. In this paper, industrial analysis, elemental analysis, contact angle analysis of the two components and analysis of the differences between the two macerals by Raman spectrum, infrared spectroscopy and thermogravimetric analysis are carried out. The differences between the two kinds of macerals were obtained through the above experimental studies. Finally, after single factor experiments and orthogonal experiments, it was found that the optimum technological conditions for separation of macerals by flotation were as follows: air intake of single factor, amount of foaming agent, When the amount of collector, the speed, and the amount of surfactant are 0.12g / L 0.12g / L 0.16g / L 0.12g / L, the most important component is that the density of floatation is lower than that of 1.35g/cm3. It shows that the flotation effect is better and the vitrinite content in the floatation is higher. According to the analysis of the results of orthogonal flotation test, the best test factors are as follows: the eleventh group of experimental air intake, foaming agent, flotation collector, the speed of flotation machine, the dosage of floatation surfactant is 120 L / h ~ (-1) 0.12 g / L, 1.2 g / L 1800r / min 0.16g / L.
【學(xué)位授予單位】：內(nèi)蒙古科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD923;TD94

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 馬偉竣;;鄂爾多斯盆地延川南2號煤層煤相分析[J];中國煤層氣;2014年02期

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