A Composite of low grade lime with CO2 emission reducing and removal of sulfur oxides in exhausted gas and improvement of high basicity efficiency in smelting process and manufacturing method thereof

摘要

The present invention relates to a method for removing sulfur oxides contained in a sintering gas in a smelting process by using a fluidized-bed boiler fly ash with a large amount of quicklime, improving the basicity of the sintering furnace in the smelting process, The present invention relates to a low-cost quicklime composition for improving the basicity efficiency and a function of desulfurization and carbon dioxide emission reduction of a sintered flue gas and a process for producing the same, According to the present invention, the sulfur oxide contained in the exhaust gas discharged as a result of the sintering process is effectively removed and the basicity efficiency in the sintering furnace is improved, thereby improving the durability of the sintering furnace and replacing limestone used in the sintering process There is an effect of reducing the emission amount of carbon dioxide generated in the sintering process. Also, by using the composition for removing sulfur oxides of the present invention, the desulfurization efficiency of the sulfur oxide in the sintered flue gas can be easily increased without any additional treatment device.