The utility model relates to a kind of industrial
silicon furnace high-temperature
flue gas
backflow technology high-efficiency heat utilization device, including
waste heat boiler,
waste heat boiler is connected with the
flue gas outlet of ore-
heating furnace by pipeline, for recycling the heat in
flue gas;Mixed reaction device, the air inlet of mixed reaction device is connected with the gas outlet of
waste heat boiler by pipeline, for mixing and reacting the component in
flue gas;
Dust collector, the air inlet of
dust collector is connected with the gas outlet of waste heat boiler by pipeline, for removing particulate matter in
flue gas;Absorption
tower, the air inlet of absorption
tower is connected with the gas outlet of
dust collector by pipeline, for removing
sulfur oxide and
nitrogen oxide in
flue gas;
Discharge pipeline,
discharge pipeline is connected with the gas outlet of absorption
tower, for flue gas after
processing is discharged to
atmosphere, the utility model is optimized flue gas treatment by adjusting
oxygen content and back retention flue gas, effectively inhibit the emission of harmful gas such as
nitrogen dioxide, while back retention flue gas utilizes waste heat, improve energy efficiency and reduce
energy consumption.