Efficient desulphurization and dust removal device

Abstract

The invention discloses an efficient desulphurization and dust removal device which comprises an absorption tower shell (1). The lower portion of the side wall of the absorption tower shell (1) is connected with an inlet flue (2), and the upper portion of the side wall of the absorption tower shell (1) is connected with an outlet flue (3). A slurry pool area (4), a rhombus grid flow equalizing area (5), a spraying area (6) and a demisting area (7) are sequentially arranged inside the absorption tower shell (1) from bottom to top. The slurry pool area (4) is located below the inlet flue (2). The rhombus grid flow equalizing area (5), the spraying area (6) and the demisting area (7) are located between the inlet flue (2) and the outlet flue (3). The rhombus grid flow equalizing area (5) can adjust distribution of flue gas entering the absorption tower shell (1) from the inlet flue (2). The efficient desulphurization and dust removal device achieves efficient desulphurization in a tower and achieves the dust removal effect as well, and reduces system investment and manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization technology and equipment in the field of environmental protection, in particular to an absorption tower capable of realizing high-efficiency desulfurization and dust removal, which can be used in industries such as electric power, cement, metallurgy, and chemical industry. Background technique [0002] In the existing desulfurization device, the flue gas entering the absorption tower is unevenly distributed on the cross-section of the tower, resulting in low gas-liquid mass transfer efficiency between flue gas and slurry, making it difficult to achieve efficient desulfurization. [0003] In order to improve the desulfurization efficiency, some researchers have adopted methods such as increasing the spray area and installing gas collecting rings or tower internal components near the tower wall to achieve efficient desulfurization. However, some of the above solutions have high energ...

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Problems solved by technology

[0002] In the existing desulfurization device, the flue gas entering the absorption tower is unevenly distributed on the cross-section of the tower, resulting in low gas-liquid mass transfer efficiency between the flue gas and the slurry, making it difficult to achieve efficient desulfurization

[0003] In order to improve the desulfurization efficiency, some researchers have adopted methods such as increasing the spray area and installing gas collecting rings or tower internal components near the tower wall to achieve efficient desulfurization. However, some of the above solutions have high energy consumption or high cost, and some are reliable. lower sex

[0004] At the same time, due to the small particle size of the dust in the flue gas entering the tower, there are still a large number of gypsum particles in the gypsum slurry, which leads to the formation of gypsum rain at the chimney outlet. Currently, three-layer ridge type demisters or two-layer The combination of ridge type + one-layer pipe type has higher investment cost

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