LIME BURNING SATURATION FLUE GAS COOLING SYSTEM

摘要

PURPOSE: A lime burning recarbonation system is provided which is capable of suppressing hydration and reducing degradation ratio during storage and transportation by recarbonizing the surface of produced quicklime using flue gas. CONSTITUTION: The recarbonation system using lime burning flue gas comprises a shaft kiln stack(10); a dust collector(20) connected to the shaft kiln stack to filter the dust and mist by flowing flue gas generated from the shaft kiln stack in the dust collector, thereby collecting the dust and mist; a heat exchanger(40) connected to the dust collector to cool the flue gas filtered in the dust collector; a cooling water line for supplying and circulating cooling water into the heat exchanger; an exhaust line(80) connected to the heat exchanger to transfer the flue gas cooled in the heat exchanger; a discharge line(94) communicated with the exhaust line to discharge the flue gas discharged from the exhaust line; and a cooler(100) connected to the discharge line to receive quicklime burnt in rotary kiln and coat the burning lime with the flue gas by injecting the flue gas supplied from the discharge line onto the burning lime.