Acase of energy conservation and environmental protection upgrade of 75t/h and 130t/h CFB boilers in Hefei power plant
The energy conservation and environmental protection upgrading technology of 75 t/h and 130 t/h CFB boilers in a Hefei power plant is mainly improved from the aspects of flue gas denitrification, desulphurization, dust separator, and flue gas dewhitening. The discharge concentrations of dust, SO2 and NOxfrom chimneys are not higher than 4. 5, 30, and 45 mg/Nm3 (State, Dry, 6％ O2). The denitrification technology uses SNCR + SCR (adding a layer of SCR) + COA low-temperature denitrification technology; The desulphurization and dust separator integration technology adopt pre-electric dedusting + circulating fluidized bed flue gas desulfurization and dust separator ( with bag filter); By increasing the flue gas heat exchanger to increase the flue gas temperature at the exit of the chimney, the purpose of flue gas dewhitening is achieved.
SCRCOACFBdesulphurization and dust separator integrationflue gas dewhitening
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万方数据
维普
