本文選題：蒙西侏羅紀(jì)煤 + 自燃氧化參數(shù)　； 參考：《華北科技學(xué)院》2015年碩士論文

【摘要】：我國(guó)西北地區(qū)侏羅紀(jì)煤炭資源儲(chǔ)量豐富，煤質(zhì)優(yōu)良，變質(zhì)程度較低，以煙煤為主，煤層自燃現(xiàn)象較為嚴(yán)重，隨著侏羅紀(jì)煤開(kāi)采量的不斷提高，侏羅紀(jì)煤自然發(fā)火危害日益凸顯，嚴(yán)重威脅侏羅紀(jì)煤層的正常開(kāi)采。本文以蒙西地區(qū)侏羅紀(jì)煤為研究對(duì)象，對(duì)蒙西地區(qū)侏羅紀(jì)煤自燃的宏觀和微觀參數(shù)進(jìn)行了實(shí)驗(yàn)測(cè)定，在煤氧復(fù)合理論的基礎(chǔ)上，分析了蒙西地區(qū)侏羅紀(jì)煤自燃氧化過(guò)程，最終得出蒙西地區(qū)侏羅紀(jì)自燃氧化特性。論文成果補(bǔ)充和完善了蒙西地區(qū)侏羅紀(jì)煤自燃機(jī)理研究實(shí)驗(yàn)參數(shù)，同時(shí)為侏羅紀(jì)煤層自然發(fā)火預(yù)測(cè)預(yù)報(bào)及防治工作提供了參考依據(jù)。 通過(guò)煤的工業(yè)分析、靜態(tài)吸氧量和程序升溫標(biāo)志性氣體生成實(shí)驗(yàn)，分別對(duì)蒙西地區(qū)侏羅紀(jì)煤的煤質(zhì)組成、自燃傾向性和低溫氧化階段標(biāo)志性氣體生成規(guī)律進(jìn)行了實(shí)驗(yàn)室測(cè)定，并與其他成煤時(shí)期煤樣的測(cè)定結(jié)果進(jìn)行對(duì)比，，從宏觀方面分析了蒙西地區(qū)侏羅紀(jì)煤自燃氧化特性； 通過(guò)傅立葉紅外光譜掃描實(shí)驗(yàn)，對(duì)蒙西地區(qū)侏羅紀(jì)煤在低溫氧化階段的不同氧化溫度時(shí)的官能團(tuán)進(jìn)行了實(shí)驗(yàn)室測(cè)定，分析了蒙西地區(qū)侏羅紀(jì)煤低溫氧化過(guò)程中，羥基、含氧官能團(tuán)、脂肪烴和芳香烴四個(gè)主要類(lèi)別官能團(tuán)的變化規(guī)律，從微觀方面分析了蒙西地區(qū)侏羅紀(jì)煤自燃氧化特性； 通過(guò)差式量熱掃描（DSC）實(shí)驗(yàn)，測(cè)定出蒙西地區(qū)侏羅紀(jì)煤自燃氧化過(guò)程的吸、放熱量。按煤樣吸、放熱規(guī)律，把蒙西地區(qū)侏羅紀(jì)煤樣DSC曲線劃分為三個(gè)不同的典型階段；分析了不同升溫速率下的DSC曲線，最終獲得了不同升溫速率下蒙西地區(qū)侏羅紀(jì)煤樣的吸、放熱規(guī)律，并對(duì)蒙西地區(qū)侏羅紀(jì)煤樣進(jìn)行了動(dòng)力學(xué)分析，在Kissinger方法的基礎(chǔ)上，計(jì)算得出了蒙西地區(qū)侏羅紀(jì)煤在低溫氧化過(guò)程中的表觀活化能。
[Abstract]:The Jurassic coal resources in Northwest China are rich in reserves, excellent in coal quality, low in metamorphism, mainly in bituminous coal, and the phenomenon of coal spontaneous combustion is more serious. With the continuous improvement of Jurassic coal extraction, the natural combustion hazards of Jurassic coal are increasingly prominent. It is a serious threat to the normal mining of Jurassic coal seam. In this paper, the macroscopical and microscopic parameters of Jurassic coal spontaneous combustion in Mengxi area are measured experimentally. On the basis of the composite theory of coal and oxygen, the oxidation process of Jurassic coal spontaneous combustion in Mengxi area is analyzed. Finally, the characteristics of Jurassic spontaneous combustion oxidation in Mengxi area were obtained. The results of this paper complement and perfect the experimental parameters of the study on the spontaneous combustion mechanism of Jurassic coal in Mengxi area, and provide a reference for the prediction, prediction and prevention of the spontaneous combustion of Jurassic coal seams. Based on the industrial analysis of coal, static oxygen absorption and temperature programmed gas generation experiments, the coal composition, spontaneous combustion tendency and characteristic gas generation in low temperature oxidation stage of Jurassic coal in Mengxi area were measured in laboratory. Compared with other coal samples during coal-forming period, the oxidation characteristics of Jurassic coal spontaneous combustion in Mengxi area were analyzed from the macroscopic aspect, and the Fourier transform infrared spectroscopy (FTIR) scanning experiment was used to analyze the oxidation characteristics of Jurassic coal in Mengxi area. The functional groups of Jurassic coal at different oxidation temperatures at low temperature in Mengxi area were determined in laboratory. The hydroxyl groups and oxygen-containing functional groups in the low temperature oxidation process of Jurassic coal in Mengxi area were analyzed. The characteristics of spontaneous combustion and oxidation of Jurassic coal in Mengxi area were analyzed from the microscopic point of view, and the differential calorimetry scanning (DSC) experiment was used to analyze the variation of four main functional groups of aliphatic hydrocarbon and aromatic hydrocarbon. The absorption and release of heat during the process of spontaneous combustion of Jurassic coal in Mengxi area were measured. According to the absorption and exothermic law of coal samples, the DSC curve of Jurassic coal samples in Mengxi area is divided into three typical stages, and the DSC curves at different heating rates are analyzed, and the absorption of Jurassic coal samples at different heating rates in Mengxi area is obtained. On the basis of Kissinger's method, the apparent activation energy of Jurassic coal in Mengxi area during low temperature oxidation was calculated.
【學(xué)位授予單位】：華北科技學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TD752.2

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