Absorption tower for flue gas desulfurization and method for equalizing flow of flue gas in absorption tower

An absorption tower and flue gas technology, which is applied in the field of flue gas equalization in the absorption tower for flue gas desulfurization and the absorption tower for flue gas desulfurization, can solve the problems of large flue gas resistance, large and unsatisfactory flue gas flow at the outlet side, etc. , to achieve the effect of saving system energy consumption, low flue gas resistance and good flow equalization effect

CN113041830AActive Publication Date: 2021-06-29长沙康欧创新科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-06-29

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Abstract

The invention provides an absorption tower for flue gas desulfurization. The absorption tower comprises a flue gas flow equalizing device positioned above an inlet flue of the absorption tower, wherein the flue gas flow equalizing device sequentially comprises a supporting beam, a lower-layer supporting grating, a lower-layer sealing net, bin dividing partition plates, a flow equalizing layer, an upper-layer sealing net and an upper-layer supporting grating from bottom to top, the flow equalizing layer is formed by flow equalizing balls, the plate faces of the bin dividing partition plates are vertically arranged, the bin dividing partition plates at least comprise four plates and are arranged in a multi-row multi-column #-shaped mode so as to form nine or more partition bins, the numbers of the flow equalizing balls arranged in at least two partition bins with the same horizontal sectional area in the flow equalizing device are different, the supporting beam is used for supporting the whole flue gas flow equalizing device and is formed by a hollow square pipe, the lower-layer supporting grating and the upper-layer supporting grating are also composed of hollow square pipes, the lower-layer supporting grating and the upper-layer supporting grating are integrally arranged to be of a multi-row and multi-column #-shaped structure corresponding to the bin dividing partition plates, and the upper-layer sealing net is modularly arranged. The absorption tower is low in smoke resistance and good in flue gas flow equalizing effect.
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Description

technical field

[0001] The invention belongs to the field of flue gas desulfurization, and in particular relates to an absorption tower for flue gas desulfurization and a method for uniform flow of flue gas in the absorption tower for flue gas desulfurization. Background technique

[0002] The invention is mainly used in the field of limestone (lime)-gypsum wet flue gas desulfurization, and can also be used in occasions similar to vertical motion and large flow flue gas uniform distribution. Limestone (lime)-gypsum wet desulfurization (WFGD) technology is the mainstream flue gas desulfurization technology worldwide, with the advantages of mature technology, high desulfurization efficiency, stable operation, wide range of coal types, easy-to-obtain absorbent and low price, etc. . It is widely used in flue gas desulfurization in thermal power plants, steel sintering and other industries. Since 2014, the country's environmental protection requirements have been increasing. Wi...

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Embodiment Construction

[0044] Main structure of the present invention and working process description:

[0045] After the flue gas enters the absorption tower through the horizontal absorption tower inlet flue 21, the drift flue gas moves upward. During the rising process of the flue gas, the air flow is homogenized after passing through the flue gas equalization device, and the flue gas purification process is continued upwards. The present invention includes support beams, lower supporting grids and lower sealing nets, compartment partitions and flow equalizing balls, upper sealing nets and upper supporting grids, and connecting accessories from bottom to top (along the direction of airflow movement).

[0046] 1. The main functions of each component:

[0047] (1) Supporting beam: mainly used to support the whole flue gas flow equalization device, generally one or more heels are provided, and the specific design is based on different tower diameters.

[0048] (2) Lower support grid: mainly used t...