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Experimental Study on Coal Seam Water Injection Influence Factors in Xin'an Coal Mine
Author(s): 
Pages: 1-3,22
Year: Issue:  12
Journal: Coal

Keyword:  porosity of coal bodyoriginal moisture contentnatural water absorption ratefirm coefficient;
Abstract: In order to explore the influence factors of coal seam water injection in Xin'an Coal Mine,the coal samples of No.3 Coal Seam in Xin'an Coal Mine were collected,and the porosity of coal sample was measured by mercury intrusion method,and the initial water content,natural water absorption rate and firmness coefficient were determined.The results show that the microporous and transitional hole ratio is 71.73%of the Coal Samples on No.3 Coal Seam,the average water absorption rate is 1.25%,the average natural water absorption rate is 2.92%,the strong coefficient is 2.37.Although the above indexes are in accordance with the requirements of water injection in the coal seam injection,but the coal body,the middle hole is the main factor affecting the coal seam water injection in Xin'an Coal Mine.
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