Spin exchange coupled ultra-clean desulfurization and dust integration system and desulfurization and dust removal method

摘要

Provided is a rotational flow and sink flow coupling integrated system for ultra-clean desulphurization and dedusting and a desulphurization and dedusting method therefor. The system includes a spray layer (3), a slurry pool (5) and a circulating pump, and further comprises a rotational flow and sink flow coupling device (4) and a tube bundle-type dedusting and demisting device (2), wherein the rotational flow and sink flow coupling device (4) is mounted above the slurry pool (5) and below the spray layer (3), the tube bundle-type dedusting and demisting device (2) is arranged on the top of a tower body (1), and the rotational flow and sink flow coupling device (4) includes a plurality of rotational flow and sink flow coupling units (41) and supporting beams (42) for supporting the rotational flow and sink flow coupling device (4) which are located therebelow, each rotational flow and sink flow coupling unit (41) includes a rotational flow cylinder (44), a rotational flow rotor (43) and a flow guiding device (45), the rotational flow rotor (43) including an inner cylinder body (431) and rotational flow blades (432), and an inner diameter of the flow guiding device (45) at a position where the flue gas flows out is less than that at a position where the flue gas flows in. The tube bundle-type dedusting and demisting device (2) includes a plurality of dedusting and demisting units, each dedusting and demisting unit including a flow guiding cylinder (21) and an n number of turbulent flow rotors (22) provided inside the flow guiding cylinder (21), the turbulent flow rotors (22) being disposed up and down perpendicularly to the wall of the flow guiding cylinder (21).