Horizontal fluorine plastic tube type dust and mist collection device mounted inside absorption tower

Abstract

The invention belongs to the technical field of waste gas purification, and in particular relates to a horizontal fluorine plastic tube type dust and mist collection device mounted inside an absorption tower. The horizontal fluorine plastic tube type dust and mist collection device is mounted inside an absorption tower (1) and comprises dust and mist collection tube bundles (7), a support unit and a water flushing unit, wherein the dust and mist collection tube bundles (7) consist of ''U''-shaped tubes and are arranged in a wave manner in a horizontal direction; a plurality of the horizontal fluorine plastic tube type dust and mist collection devices are horizontally mounted in parallel inside the absorption tower (1); and one end with a surface plate (3), of each horizontal fluorine plastic tube type dust and mist collection device, extends outside the absorption tower through an absorption tower flange (15). The horizontal fluorine plastic tube type dust and mist collection device is applied to the power environmental protection industry and works in the absorption tower of a flue gas desulfurization (FGD) device of a thermal power plant, fume is purified by using a cold source in a cooling manner, or liquid membranes are formed on surfaces of the fluorine dust and mist collection tube bundles in a water spraying mode to capture impurities such as fine particle dust, gypsum and liquid water, and thus cleaning discharge of fume of the thermal power plant can be achieved.

Description

technical field [0001] The invention belongs to the technical field of waste gas purification, and in particular relates to a horizontal fluoroplastic tube type dust and fog removal device installed in an absorption tower. Background technique [0002] China's coal-based energy structure has resulted in domestic power sources being dominated by coal-fired thermal power generation. In order to solve the problem of boiler flue gas emission pollution, coal-fired power plants have adopted a large number of technical measures in recent years to reduce smoke, SO 2 , nitrogen oxides and other pollutants, the addition and transformation of electrostatic precipitators, flue gas desulfurization systems (FGD), and flue gas denitrification systems (SCR) have been carried out successively, and the overall pollution discharge level has been greatly reduced. [0003] At present, with the improvement of environmental protection emission standards and the requirements of "ultra-clean emissi...

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Problems solved by technology

[0012] The main problem of the above-mentioned methods is that the requirements for the site are relatively high, and they all require a relatively large space for renovation between the outlet of the desulfurization absorption tower and the inlet of the chimney, and can arrange flue gas reheating devices, wet electrostatic demisters and water cooling Tube-type condensate dust collector or water-sprinkler tube-type dust collector, but for some thermal power plants where the layout is tight or the flue gas is discharged from the top of the absorption tower, there is no room for such transformation at all, and it can only be installed in the desulfurization absorption tower Complete the work of dust removal and fog removal

However, the original water-cooled tube-type condensate deduster or water-sprinkling tube-type deduster, which uses fluoroplastics as the tube bundle for dedusting and mist removal, can only be arranged vertically and cannot be installed in the desulfurization absorption tower.

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