Abstract:

In order to select a removal process for unburned coal in coal ash from coalfired power plants,fly ash flotation (wet method) decarburization technology as well as fluidization, combustion and electric separation (dry method) decarburization technology are introduced respectively. The domestic and international research on the development and status quo of flotation decarbonization process and pharmaceutical system are summarized.The research results of triboelectrostatic separation device and electric separation process are obtained.The problems existed in the flotation decarburization and electric separation decarbonization and their applicability arepresented.

Key words:

fly ash, decarbonization, flotation technology, fluidization technology, combustion technology, electrostatic separationtechnology