CAJ | 학술논문

为了研究阻化剂对煤样初次与二次氧化特性的影响，选用KCl、CaCl2、MgCl2和NaCl等4种常用阻化剂对原煤样和初次氧化煤样分别进行处理，通过程序升温实验，研究阻化剂对煤的两次氧化过程自燃特性的影响程度。研究结果表明：阻化剂对初次氧化煤样的阻化率影响较大，对二次氧化煤样的耗氧速率影响较大，对两种煤样自燃的临界温度均有较大的提高；阻化剂对煤的初次氧化和二次氧化过程均有较好的阻化作用，对初次氧化煤样的阻化效果更明显；4种常见的氯盐类阻化剂对煤样两次氧化过程阻化能力大小的排序均为MgCl2>CaCl2>NaCl>KCl。
위료연구조화제대매양초차여이차양화특성적영향，선용KCl、CaCl2、MgCl2화NaCl등4충상용조화제대원매양화초차양화매양분별진행처리，통과정서승온실험，연구조화제대매적량차양화과정자연특성적영향정도。연구결과표명：조화제대초차양화매양적조화솔영향교대，대이차양화매양적모양속솔영향교대，대량충매양자연적림계온도균유교대적제고；조화제대매적초차양화화이차양화과정균유교호적조화작용，대초차양화매양적조화효과경명현；4충상견적록염류조화제대매양량차양화과정조화능력대소적배서균위MgCl2>CaCl2>NaCl>KCl。
In this paper,four commonly-used inhibitors including KCl,CaCl2 ,MgCl2 and NaCl were chosen for processing the raw coal sample and the initially-oxidized coal sample in order to study the effect of the inhibitor on the initial and secondary oxidation characteristics of coal samples,and through the programmed temperature rise experiments,study was made on the influence degree of the inhibitors upon the coal spontaneous combustion in the process of the initial and secondary oxidation. The study results showed that the inhibitors had greater influence on the inhibiting rate of the initially-oxidized coal sample and greater influence on the oxygen consumption rate of the secondarily-oxidized coal sample, and they made the critical temperature of the spontaneous combustion of two coal samples to be increased greatly;the inhibitors had better inhibition effect on the initial and secondary oxidation process of coal samples, and their inhibition effect were more obvious on the initially-oxidized coal sample;and the inhibition capability of four commonly-used inhibitors to the coal samples in two oxidation process was MgCl2> CaCl2>NaCl>KCl.