Two-stage flue gas desulfurization system
A desulfurization system and flue gas technology, applied in gas treatment, dispersed particle separation, membrane technology, etc., can solve the problems of tower fouling, large flow resistance of spray liquid, poor desulfurization effect, etc. Desulfurization effect, scaling reduction effect
Pending Publication Date: 2021-09-17
HUAIHUA CHENZHOU MACHINERY
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Problems solved by technology
[0003] The existing common flue gas desulfurization system is either a one-stage desulfurization tower structure, or a two-stage or multi-stage desulfurization tower structure, and a one-stage desulfurization tower structure, which has poor desulfurization effect, unstable flue gas index, tower fouling, Spray unit blockage cleaning time is long, labor intensity and other problems; and the existing two-stage or multi-stage desulfurization tower structure, the desulfurization spray liquid usually adopts an integral circulation design, that is, the spray liquid flows through each desulfurization tower and then Circulation, the disadvantages of this method are: the flow resistance of the spray liquid is large, and the flue gas index is also prone to instability, fouling of the tower body, long cleaning time for spray unit blockage, and high labor intensity.
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[0017] The present invention will be described in detail below in conjunction with accompanying drawing, as Figure 1-2 Shown: a two-stage flue gas desulfurization system, including a first-stage desulfurization tower 3, an air intake flue 1 connected to the top of the first-stage desulfurization tower, a first-stage connecting cabinet 4 arranged at the bottom of the first-stage desulfurization tower, and a second-stage desulfurization tower Tower 8, a secondary connecting cabinet 10 arranged at the bottom of the secondary desulfurization tower, a gas outlet flue 11 connected to the secondary connecting cabinet, a primary spray unit and a secondary spray unit, the primary connecting cabinet passes through the Road 6 communicates with the top of the secondary desulfurization tower.
[0018] The primary spray unit includes a primary spray liquid stirring tank 20, a primary spray pipe 2 and a primary return pipe 18, and the primary spray liquid stirring pool 20 is connected with ...
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The invention discloses a two-stage flue gas desulfurization system, which comprises a first-stage desulfurization tower, a gas inlet flue channel communicated with the top of the first-stage desulfurization tower, a first-stage communication cabinet arranged at the bottom of the first-stage desulfurization tower, a second-stage desulfurization tower, a second-stage communication cabinet arranged at the bottom of the second-stage desulfurization tower, a gas outlet flue channel communicated with the second-stage communication cabinet, a first-stage spraying unit and a second-stage spraying unit, wherein the first-stage communication cabinet is communicated with the top of the second-stage desulfurization tower through a middle flue channel. According to the two-stage flue gas desulfurization system, the two stages of desulfurization towers are adopted, and each stage of desulfurization tower is provided with a spraying unit which is independently circulated, so that the flowing resistance of spraying liquid is greatly reduced, the flue gas desulfurization effect is effectively improved, the flue gas is ensured to be discharged in a standard reaching manner, and the probabilities of tower body scaling and spraying unit blockage are reduced.
Description
technical field [0001] The invention relates to the technical field of flue gas desulfurization, in particular to a two-stage flue gas desulfurization system. Background technique [0002] Flue gas desulfurization usually refers to the removal of sulfur oxides (SO 2 and SO 3 )the process of. Desulfurization tower is a common equipment for flue gas desulfurization, which is widely used in flue gas desulfurization fields such as smelting and production. [0003] The existing common flue gas desulfurization system is either a one-stage desulfurization tower structure, or a two-stage or multi-stage desulfurization tower structure, and a one-stage desulfurization tower structure, which has poor desulfurization effect, unstable flue gas index, tower fouling, Spray unit blockage cleaning time is long, labor intensity and other problems; and the existing two-stage or multi-stage desulfurization tower structure, the desulfurization spray liquid usually adopts an integral circulati...
Claims
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Login to View More IPC IPC(8): B01D53/78B01D53/50
CPCB01D53/507B01D2258/0283
Inventor 戴辉曹万宝王亲雄熊云尚
Owner HUAIHUA CHENZHOU MACHINERY