影响炭化型煤成型性能的工艺参数研究  

Study on Technical Parameters Affecting Carbonized Briquette Properties

作　　者：郭云飞[1] 刘书福[1] 张永发[1] 

机构地区：[1]太原理工大学煤科学与技术教育部和山西省重点实验室,太原030024

出　　处：《工业安全与环保》2016年第8期82-84,102,共4页Industrial Safety and Environmental Protection

基　　金：国家自然科学基金(51274147)

摘　　要：对无烟粉煤生产炭化型煤的成型工艺进行了研究,得出了粉煤成型的最优工艺参数。同时用扫描电镜（SEM）对炭化型煤高温时的粘结机理进行了研究,结果表明,粘结剂用量为16%,成型水的质量分数为13%-15%,成型压力为50 MPa,炭化温度为800℃时,制得的高性能型煤的抗压强度和跌落强度分别为13.2 MPa和98.2%。型煤炭化时,煤改性粘结剂产生液相胶质体在无烟煤表面形成胶质薄膜层,薄膜层逐渐缩聚、固化,填充于颗粒间,提高了型煤强度。The briquetting technology of carbonized briquette made from pulverized anthracite is analyzed,the optimized technical parameters affecting the briquette quality are obtained.At the same time,the bonding mechanism of briquette at high temperature is analyzed by means of SEM,and the results show that,in conditions that content of binder is 16%,a moisture content of the briquette ranging from 13%~15%,forming pressure is 50 MPa and carbonization temperature is 800 ℃,the compressive strength and falling strength of high-performance briquette is 13.2MPa and 98.2%respectively.In the carbonization the liquid phase colloid produced from the coal modified binder forms a colloid film layer in the anthracite surface and the generation of a gel-phase is considered important to promote the strength of the briquette through the agglomeration of coal particles.

关 键 词：炭化型煤 成型工艺 抗压强度 跌落强度 

分 类 号：TQ536[化学工程—煤化学工程]