Abstract:

A power plant has two units of 330MW subcritical coalfired units, and adopted gypsumlimestone wet type flue gas desulfurization system. Desulfurization system was equipped for each boiler and with one stacker. Abnormal scaling was found in desulfurization system operating. Base on this problem, analysis was carried out, and treatment measurements was indicated. Which is critical for the unit safety, reliability and economic.

Key words:

desulfurization tower, gypsum wet flue gas desulfurization, abnormal scaling