Moving bed adsorption tower and flue gas purification system with same

Abstract

The invention discloses a moving bed adsorption tower and a flue gas purification system with the same. The moving bed adsorption tower comprises a tower body, a distributor and a plurality of blanking pipes, the tower body is internally provided with a cavity, the tower body is provided with a flue gas inlet and a flue gas outlet which are communicated with the cavity, and the cavity comprises a filler section filled with an adsorbent; the distributor is arranged in the tower body, is provided with a plurality of blanking ports, and is positioned below the filler section, so that the adsorbent in the filler section flows out through the blanking ports; and the plurality of blanking pipes are in one-to-one correspondence with the plurality of blanking ports, the blanking pipes are positioned below the corresponding blanking ports, and the flue gas inlets are positioned below the blanking ports. At least part of the side wall of the blanking pipes is of a hollow structure, the side wall comprises a plurality of grid bars arranged at intervals in the length direction of the blanking pipe, a smoke channel allowing smoke to circulate is formed between every two adjacent grid bars, and the grid bars incline inwards and downwards, so that the bottom ends of the grid bars can be located on the inner sides of the top ends of the grid bars. The moving bed adsorption tower has the advantages of uniform adsorption and good adsorption effect.

Description

technical field [0001] The present application relates to the technical field of flue gas treatment, in particular to a moving bed adsorption tower and a flue gas purification system with a moving bed adsorption tower. Background technique [0002] The large amount of pollutants produced by coal combustion flue gas is one of the important factors that endanger the atmospheric environment and human health. In the field of flue gas purification, fixed bed adsorption towers are usually used to adsorb pollutants in flue gas to achieve the purpose of purifying flue gas. The problem of unevenness, poor adsorption effect, and the decrease of adsorption capacity with the extension of use time, and the need to stop working when the adsorbent needs to be replaced, seriously affects the adsorption efficiency and increases the difficulty of operation. The related technology adopts the moving bed adsorption tower to make the adsorbent flow in the tower, which overcomes the problem that ...

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Problems solved by technology

In the field of flue gas purification, fixed bed adsorption towers are usually used to adsorb pollutants in flue gas to achieve the purpose of purifying flue gas. Inhomogeneity, poor adsorption effect, and the reduction of adsorption capacity with the extension of use time, and the need to stop working when the adsorbent needs to be replaced, which seriously affects the adsorption efficiency and increases the difficulty of operation

The related technology adopts the moving bed adsorption tower to make the adsorbent flow in the tower, which overcomes the problem that the adsorption capacity of the fixed bed adsorption tower decreases with the prolongation of use time, but there are still uneven distribution of flue gas and poor purification effect in the moving bed adsorption tower. ideal question

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