射线识别煤矸选煤技术对煤质分析的要求

通过分析X射线识别技术在煤炭分选方面的应用,从X射线识别煤矸基本原理、X射线识别煤矸技术方案、X射线管理和γ射线管理对比、X射线识别技术对煤质分析的要求等方面介绍了X射线识别煤矸分选技术。X射线煤矸识别技术的理论基础是X射线照射不同物质时,衰减程度不同、成像不同。X射线识别煤矸的分选技术有效分选上限达到300 mm,下限低至15 mm,有效分选粒度为300~25 mm。由于X射线识别煤矸的分选技术具有系统简捷、安全高效,不用水、不用介、也不产生煤泥的优点,相对其他传统选煤技术,更有利于实现煤炭分选,在山西、陕西、内蒙古和新疆等缺水的煤炭主产地有应用前景。 In view of application of X ray recognition technology in coal separation,the basic principle of coal gangue by X ray identification,X ray identification of coal gangue technology,X ray management and γ ray management contrast,and the new requirements of X ray recognition technology to the coal quality analysis were introduced. The theoretical basis of X ray coal gangue identification technology is that when X rays irradiate different substances,the attenuation degree and imaging are different. Upper limit of effective sorting of X ray identification of coal gangue is 300 mm,and lower limit and effective sorting granularity are 15 mm and 300-25 mm,respectively. Coal preparation technology based on X ray recognition of coal gangue has the advantages of simple system,safe and efficient,no water,no medium and no slime.Compared with other traditional coal preparation technologies,coal preparation technology based on X ray recognition of coal gangue is more conducive to realize coal separation,and has bright future in Shanxi,Shaanxi,Inner Mongolia and Xinjiang