循环流化床锅炉灰渣综合利用

循环流化床锅炉属于低温燃烧,并且燃烧过程加入了大量的脱硫剂,导致其产生的灰渣较普通粉煤灰有很大差异.灰渣的物理、化学性质发生了很大的变化,钙含量明显增加,同时灰渣的数量明显增多.这些差异致使其难以用常规方式进行利用.因此研究和开发循环流化床锅炉灰渣的利用途径具有重要意义.综述了循环流化床锅炉灰渣在建材、农业、分选等方面的应用.

The Review and Analysis of Comprehensive Utilization of Circulating Fluidized Bed Boiler Ash Residue

There are many differences between CFB ash residue and common ash residue because CFB boiler burn at lower temperature and desulfurizer is put during combustion.The physical and chemical characteristics change dramatically.The content of calcium in CFB ash residue higher than common ash residue and the amount of ash residue also increase.These differences result it difficult to use as common ash residue,so it is very important to study and develop new methods for the utilization of CFB ash residue.In this paper a overview of CFB ash residue utilization in architecture material,agriculture and extraction etc.was given.