The invention relates to a large liquid-gas ratio multi-layer
cascade dust and mist removal packed
tower, comprising a
tower body, supporting frames, packing
layers, spray components and a
settling tank, wherein the bottom of the
tower body is fixed on the ground by means of a support, an exhaust port is formed on the top of the tower body, a liquid outlet is formed at the bottom of the tower body, and a gas inlet is formed at the lower end of the side wall of the tower body; the plurality of supporting frames are installed in the tower body up and down at intervals, and are positioned above the gas inlet; the plurality of packing
layers are respectively laid at the upper parts of the supporting frames, and the diameters of packing in the plurality of packing
layers are sequentially reduced from bottom to top; the spray components are respectively arranged above all the packing layers except the uppermost packing layer; a liquid
discharge hole extends downwards into the
settling tank. The large liquid-gas ratio multi-layer
cascade dust and mist removal packed tower has the advantages that the purification of dust-containing
flue gas is realized step by step by means of the multi-layer
cascade packed tower; the lowest packing layer is used for coarse
filtration, so that the resistance is small, and blockage is prevented; the middle packing layers are used for secondary
filtration, so that
inertia collision, interception and water film dust removal effects are enhanced; after the
flue gas is filtered by means of the uppermost packing layer, dust-containing water mist is effectively removed, and ultra-clean
discharge is realized.