基于腐植酸钠的型煤复合粘结剂的研究

Study on briquette composite binder based on sodium humate

以腐植酸钠作为主要型煤粘结剂,以蒙脱石和高岭土作为复配粘结剂,以常温强度、高温强度和热稳定性作为型煤试样的主要性能检测指标,先通过单因素实验的方法进行实验,然后对实验结果进行对比分析,得到了腐植酸钠、蒙脱石和高岭土加入量的变化对型煤试样常温强度、高温强度和热稳定性的影响趋势,着重对其机理进行了分析。研究结果表明,腐植酸钠对常温强度影响最为显著,蒙脱石和高岭土可提高型煤的高温强度和热稳定性,且蒙脱石的作用比高岭土更为明显。

Sodium humate （SH） was used as a main briquette binder, and montmorlllomte （MMT） and kaolin were used as additional binder. The briquette samples were characterized in terms of room temperature strength, high-temperature strength and thermal stability. The test data were analyzed systematically by single factor experiment. The influence of the loading amount of SH, MMT and kaolin on above-indexes were obtained, and then the mechanism was discussed. The results indicated that SH was the important influential factor on room temperature strength, while MMT and kaolin enhanced high-temperature strength and thermal stability, and MMT showed more improvement effect than kaolin.