Flue gas desulfurization and purification technology of flue gas desulfurization and purification tower

Abstract

The invention discloses a flue gas desulfurization and purification technology of a flue gas desulfurization and purification tower. The flue gas desulfurization and purification technology comprisesthe following steps: mounting: connecting a flue-gas gas inlet pipe with a flue gas inlet of a desulfurization tower through a pipeline connector; additionally arranging a filtering plate in the fluegas inlet; mounting an air blower in the flue gas inlet; feeding gas: starting the air blower to generate air pressure difference in an inner cavity of the flue gas inlet; enabling the flue gas to continuously flow into the flue gas inlet from the flue-gas gas inlet pipe and enabling the flue gas to penetrate through the filtering plate to be subjected to primary filtering; then conveying the fluegas into the desulfurization tower; discharging water: switching on a valve on a water inlet pipeline, enabling a sodium hydroxide solution to flow into an overflowing groove in the desulfurization tower though the water inlet pipeline and collecting. By adopting the flue gas desulfurization and purification technology disclosed by the invention, the problems that water mist sprayed from a spraying nozzle in the desulfurization tower cannot cover a whole section space of a tower body, a spraying space has dead angles and the spraying nozzle is easy to block and damage, gas and liquid cannot be in sufficient contact by the defects, the absorption efficiency on sulfur dioxide is reduced and a desulfurization target cannot be realized are solved.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization, in particular to a flue gas desulfurization purification process of a flue gas desulfurization tower. Background technique [0002] The desulfurization and dust collector is a professional desulfurization equipment with turbocharged turbulent flow dedusting and desulfurization technology. Under the action of the turbocharged turbulent flow device, the sulfur-containing gas rotates and diffuses at a high speed and absorbs the slurry to form an enhanced turbulent mass transfer. The process of mass transfer It makes the gas-liquid form an emulsified layer, not only the chemical absorption is fast, but the liquid film is always close to neutral, which can maintain a very high and stable mass transfer rate in the whole process. Therefore, it is an excellent low-resistance and high-efficiency desulfurization equipment . [0003] At present, the most widely used wet desulfurization tow...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a flue gas desulfurization purification process of a flue gas desulfurization tower, which has the advantages of sufficient contact between the solution and the flue gas and good purification effect, and solves the problem that the water mist sprayed from the nozzle in the desulfurization tower cannot cover the entire tower body There are dead angles in the cross-sectional space and the spray space, and the nozzles are easy to be blocked and damaged. These defects cause the gas-liquid phase to not be fully contacted, reduce the absorption efficiency of sulfur dioxide, and fail to achieve the desulfurization target.