新疆黑眼泉北井田煤层赋存与煤质特征变化规律研究
发布时间：2019-06-26 23:00
【摘要】：煤炭资源属于能源矿产资源之一,其应用量占世界一次能源消费量的25%。煤炭资源作为中国发展历程所需的最可靠能源,它的基础能源地位不可撼动,且我国以煤炭为主的能源格局将长时期存在。新疆有着丰富的煤炭资源,论文选取新疆东北部巴里坤三塘湖赋煤带上的黑眼泉北井田为研究区。通过研究区域主要可采煤层(以下简称为“主要煤层”)的厚度、稳定性、聚煤因素,运用定性与定量相结合的方法,系统的总结了黑眼泉北井田主要煤层的赋存变化规律,分析了煤质变化特征、煤的种类与煤炭的工业用途,根据主要煤层的煤质特征及变化规律、煤质指标的相关性建立数学模型。通过研究分析得出以下结论:(1)研究区赋存着主要煤层4层,煤层赋存特征基本相似,其规律是由西南向东北向逐渐变深,对区内煤层的连续性对比与稳定性进行了分析研究与评价,从主要煤层的走向和倾向变化规律上看,得出主要煤层在本区域含煤盆地南翼浅部,该盆地轴部(深部)在研究区的北部与东部。(2)研究区主要煤层的煤质指标中灰分(Ad)的分布变化规律大体上是特低-低灰煤由南向北由西南向东北逐级分布,全硫(St·d)含量的分布规律为煤层露头向煤层深部由南向北逐渐递增条带试分布,发热量(Qgr.d)总体呈现由煤层露头向煤层深部数据逐渐递减。(3)区内主要煤层煤的发热量与煤质工业指标的相关性,从整体上看煤的发热量(Qgr.d)与水分(Mad)变化的相关性规律不明显;主要煤层煤的发热量(Qgr.d)与挥发分(Vdaf)有关系,并且与焦渣特征有关系,在本区内焦渣特性基本稳定,所以主要煤层较好的呈现了煤的发热量越高煤的干燥无灰基挥发分越低的相关性规律;通过分析得出主要煤层煤的发热量(Qgr.d)随灰分(Ad)增大而降低。论文研究成果有助于本区域煤炭资源的综合开发利用与远景规划有着现实的意义,与此同时丰富了该含煤地层的相关理论基础。
[Abstract]:Coal resources are one of the energy and mineral resources, accounting for 25% of the world's primary energy consumption. As the most reliable energy needed in the course of China's development, the basic energy status of coal resources can not be shaken, and the energy pattern dominated by coal will exist for a long time. Xinjiang is rich in coal resources. In this paper, the black eye spring north well field on the Santang Lake Fu coal belt in the northeast of Xinjiang is selected as the study area. By studying the thickness, stability and coal accumulation factors of the main recoverable coal seams in the area (hereinafter referred to as "main coal seams"), using the method of combining qualitative and quantitative methods, this paper systematically summarizes the occurrence and variation law of the main coal seams in the north coalfield of Heiyengquan, analyzes the variation characteristics of coal quality, the types of coal and the industrial use of coal, and establishes a mathematical model according to the coal quality characteristics and changing laws of the main coal seams and the correlation of coal quality indexes. Through the research and analysis, the following conclusions are drawn: (1) there are four main coal seams in the study area, and the occurrence characteristics of coal seams are basically similar, and their laws gradually become deeper from southwest to northeast. The continuity comparison and stability of coal seams in the area are analyzed and evaluated. From the trend and tendency of the main coal seams, it is concluded that the main coal seams are in the shallow part of the southern wing of the coal-bearing basin in this area. The axis (deep) of the basin is in the north and east of the study area. (2) the distribution and variation of ash (Ad) in the coal quality index of the main coal seams in the study area is generally the gradual distribution of ultra-low and low ash coal from south to north from southwest to northeast, and the distribution of total sulfur (St 路d) content is gradually increasing from south to north in the outcrop of coal seam. The calorific value (Qgr.d) decreases gradually from the outcrop of the coal seam to the deep data of the coal seam. (3) the correlation between the calorific value of the main coal seam coal and the industrial index of coal quality, and the correlation between the calorific value of coal (Qgr.d) and the change of water (Mad) is not obvious as a whole; The calorific value (Qgr.d) of the main coal seam coal is related to the volatile (Vdaf), and it is related to the characteristics of coke slag. The coke slag characteristics in this area are basically stable, so the higher the calorific value of coal, the lower the dry ash-free volatile content of the main coal seam. Through the analysis, it is concluded that the calorific value (Qgr.d) of the main coal seam coal decreases with the increase of ash (Ad). The research results of this paper are helpful to the comprehensive development, utilization and prospect planning of coal resources in this region, and enrich the relevant theoretical basis of the coal-bearing strata at the same time.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P618.11
本文编号：2506575
[Abstract]:Coal resources are one of the energy and mineral resources, accounting for 25% of the world's primary energy consumption. As the most reliable energy needed in the course of China's development, the basic energy status of coal resources can not be shaken, and the energy pattern dominated by coal will exist for a long time. Xinjiang is rich in coal resources. In this paper, the black eye spring north well field on the Santang Lake Fu coal belt in the northeast of Xinjiang is selected as the study area. By studying the thickness, stability and coal accumulation factors of the main recoverable coal seams in the area (hereinafter referred to as "main coal seams"), using the method of combining qualitative and quantitative methods, this paper systematically summarizes the occurrence and variation law of the main coal seams in the north coalfield of Heiyengquan, analyzes the variation characteristics of coal quality, the types of coal and the industrial use of coal, and establishes a mathematical model according to the coal quality characteristics and changing laws of the main coal seams and the correlation of coal quality indexes. Through the research and analysis, the following conclusions are drawn: (1) there are four main coal seams in the study area, and the occurrence characteristics of coal seams are basically similar, and their laws gradually become deeper from southwest to northeast. The continuity comparison and stability of coal seams in the area are analyzed and evaluated. From the trend and tendency of the main coal seams, it is concluded that the main coal seams are in the shallow part of the southern wing of the coal-bearing basin in this area. The axis (deep) of the basin is in the north and east of the study area. (2) the distribution and variation of ash (Ad) in the coal quality index of the main coal seams in the study area is generally the gradual distribution of ultra-low and low ash coal from south to north from southwest to northeast, and the distribution of total sulfur (St 路d) content is gradually increasing from south to north in the outcrop of coal seam. The calorific value (Qgr.d) decreases gradually from the outcrop of the coal seam to the deep data of the coal seam. (3) the correlation between the calorific value of the main coal seam coal and the industrial index of coal quality, and the correlation between the calorific value of coal (Qgr.d) and the change of water (Mad) is not obvious as a whole; The calorific value (Qgr.d) of the main coal seam coal is related to the volatile (Vdaf), and it is related to the characteristics of coke slag. The coke slag characteristics in this area are basically stable, so the higher the calorific value of coal, the lower the dry ash-free volatile content of the main coal seam. Through the analysis, it is concluded that the calorific value (Qgr.d) of the main coal seam coal decreases with the increase of ash (Ad). The research results of this paper are helpful to the comprehensive development, utilization and prospect planning of coal resources in this region, and enrich the relevant theoretical basis of the coal-bearing strata at the same time.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P618.11
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