关键词: 兰炭, 气化, 型煤, 黏结剂, 阻熔剂

Abstract: A large quantity of semi-coke powder with particle size less than 3mm are used to make gasification briquette，which can not only reduce the cost of gasification briquette，but also make full use of resources. Briquette coal is molded at room temperature and under pressure. This paper focuses on the influence of different binders upon the properties of briquette coal and the change of ash melting temperature of semi-coke when refractory agent is added. With the same amount of binder，the briquette coal with organic binder has higher falling shatter strength and higher calorific value than that with inorganic binder，but its thermal stability is poor. Clay 1 （wAl2O3>60%） not only has bonding capability，but also increases the melting point of coal ash. The composite binder，containing sodium humate，starch，clay 1，can make the falling shatter strength and ash melting point of semi-coke meet the requirements of gasification briquette.

Key words: semi-coke, gasification, briquette coal, binder, refractory agent