型煤黏结剂的研究进展

Research progress of briquette binder

根据黏结剂的结合机理和化学性质分别介绍了型煤黏结剂的两种分类方法。阐述了几种主要黏结剂的研究现状,重点分析了有机黏结剂、无机黏结剂、有机-无机复合型黏结剂的研究和应用情况。有机黏结剂的黏结性能和耐水性均较好,但热稳定性差,且价格昂贵,在一定程度上限制了其进一步的发展和应用。无机黏结剂来源广泛,价格便宜,具有一定的热强度,有的还有固硫作用,在中国的化肥用型煤和民用型煤生产中占很大比例;无机黏结剂生产的型煤热稳定性好,但可燃性差,增加了型煤灰分,降低了型煤发热量,无法满足用户对热值的需求。有机-无机复合黏结剂结合了有机黏结剂和无机黏结剂的优点,使黏结剂的多效性得到充分发挥,制备的型煤具有较高的机械强度和热稳定性。

According to the bonding mechanism and chemical properties of binder, introduce two classification methods of briquette binder and the research situation of some major binders. Investigate the research and application status of organic, inorganic, compound briquette binder. The caking property and water resistance of organic briquette binder is great, while its poor thermal stability and high price restrict its development and application. The raw material sources of inorganic briquette binder are wide, it takes a big part of chemical fertilizer industry and civilian briquette production due to low price, good thermal intensity and sulfur capture characteristics. The briquette bonded by inorganic binder has remarkable thermal stability, but its poor combustibility limits the calorific value. The compound briquette binder, which combines the advantages of organic and inorganic binder, can make full use of its multiple effects and prepare high-quality briquette with great mechanical strength and thermal stability.