生产烟灰陶粒时,由于烟灰可塑性很小,故須借助粘結剂成球。可作烟灰陶粒成球粘結剂的种类很多,比較常用的有以下两种: (1)粘土:粘土具有很好的塑性,是一种良好的成球粘結剂。在烟灰陶粒成球过程中,粘土的細小顆粒可以吸附和粘結烟灰的顆粒,使其形成致密的球体,并具有一定的孔隙、机械强度和热稳定性。成球时,粘土摻量视烟灰的細度和粘土的塑性而定,試驗表明,塑性粘土摻量为9～13%,砂质粘土摻量为 In the production of soot ash particles, since the soot has a very low plasticity, it must be formed into a ball by means of a binder. There are many kinds of soot ball binders that can be used as soot. The following two types are commonly used: (1) Clay: Clay has good plasticity and is a good ball forming binder. During the ball formation of soot ceramsite, the fine particles of clay can adsorb and bind the soot particles to form dense spheres with a certain porosity, mechanical strength and thermal stability. When balling, the clay content depends on the fineness of the soot and the plasticity of the clay. Tests have shown that the plastic clay content is 9-13% and the sand clay content is