Circulating fluidized bed boiler in electric power enterprise in proportion to increasing the energy consumption status, it will directly affect the economic efficiency of enterprises.

Circulating fluidized bed boiler has the advantages of strong adaptability to environmental requirements, such as low NOx emission, furnace limestone desulfurization, burning low calorific value coal species. Its disadvantage is due to circulating fluidized bed boiler's combustion temperature is 850--950℃( 300 ℃ lower than pulverized coal furnace ), so the coal particle combustion in boiler of low degree. This is the circulating fluidized bed boiler fly ash carbon content is high and low heat efficiency is one of the main reasons.

After many years of operation experience and practice summary, we developed a set of suitable for circulating fluidized bed boilers in China energy-saving technology -- ash reburning device. The device has been in a number of power plant boilers in actual application, coal saving ratio of at least 3.75%, more than 8% above, generally 2-3 months to recover the investment, is a small investment, quick effect, high return modification technology, the device has been the Shandong Provincial Commission of economy and information, Zibo City Office of energy conservation recommended for energy saving projects.