發(fā)布時間：2018-05-20 18:44

  本文選題：深部開采 + 礦井熱害��； 參考：《安徽理工大學》2013年碩士論文

【摘要】：礦井熱害問題是一個日益突出的問題,目前國內外進行了大量科學研究,我國的研究雖然相對較晚,同樣也取得了重大的進展,但是還有很多的問題沒有解決。淮南煤田深部開采過程也面臨著非常嚴重的高溫熱害問題,地溫問題已經(jīng)嚴重制約煤炭工業(yè)向深部的發(fā)展速度。 朱集煤礦是淮南礦區(qū)典型的高溫熱害礦井。本文針對朱集礦井地溫較高的問題,采用熱力學、地質學等理論分析與現(xiàn)場實測相結合的研究方法,對朱集煤礦進行了井下巷道直接測溫,得到主要開采區(qū)域原巖溫度的可靠數(shù)據(jù)。對礦井地溫場規(guī)律、地溫場影響因素、礦井熱源進行分析總結,同時對井巷風流溫升規(guī)律以及礦井降溫效果做了分析研究。研究結果對朱集以及相似條件的高溫礦井熱害治理具有一定的指導意義。論文的主要成果與創(chuàng)新點如下： 1.運用理論分析了朱集礦井的高溫熱害問題是由于礦井開采深度深,受背斜等地質構造的影響,以及較厚的松散層覆蓋等因素綜合作用的結果。 2.采用高精度熱電阻傳感器對礦井進行原巖溫度調查。結果表明,井下標高-863m～-1018m的范圍,原巖溫度在42.4℃～46.5℃,預計-1070m水平原巖溫度在47.8℃～49.8℃之間。 3.通過理論分析礦井主要特征井巷的熱源及溫升過程,并根據(jù)實測總結出其風流溫升規(guī)律特征。 4.分析了各類礦井降溫技術的特點及其使用條件,對朱集礦井井下礦井降溫進行考察。采用降溫系統(tǒng)以后降溫效果明顯,風流干球溫度降低4℃左右,相對濕度10%～20%左右。
[Abstract]:The problem of mine thermal hazard is an increasingly prominent problem. At present, a large number of scientific studies have been carried out at home and abroad. Although the research in China is relatively late, it has also made great progress, but there are still many problems that have not been solved. The deep mining process of Huainan coalfield is also faced with very serious problems of high temperature and heat damage. The geothermal problem has seriously restricted the speed of coal industry to deep development. Zhuji Coal Mine is a typical high temperature thermal hazard mine in Huainan mining area. In this paper, aiming at the problem of high ground temperature in Zhuji coal mine, using the research methods of thermodynamics, geology and field measurement, this paper directly measures the temperature of underground roadway in Zhuji coal mine. Reliable data of original rock temperature in main mining area are obtained. The law of mine ground temperature field, the influencing factors of ground temperature field and the mine heat source are analyzed and summarized. At the same time, the law of air flow temperature rise and the effect of mine cooling are analyzed and studied. The research results have certain guiding significance to Zhuji and similar conditions of high temperature mine heat damage control. The main achievements and innovations of the thesis are as follows: 1. The problem of high temperature thermal damage in Zhuji mine is analyzed theoretically because of deep mining depth, influenced by geological structure such as anticline, as well as the result of comprehensive action of thick loose layer covering and so on. 2. High precision thermal resistance sensor is used to investigate the original rock temperature of mine. The results show that in the range of -863 m ~ 1018 m, the original rock temperature is 42.4 鈩，

本文編號：1915806