Method and device for increasing ore pulp desulfurization reaction rate by using surfactant

Abstract

The invention discloses a method and device for improving the ore pulp desulfurization reaction rate by using a surfactant. The method comprises the following steps: S1, preparing phosphoric ore pulpwith a liquid-solid ratio of 30-50%, and uniformly mixing the surfactant in the phosphoric ore pulp to obtain absorption slurry; and S2, uniformly mixing flue gas to be desulfurized with oxygen, fullymixing the mixed gas with the absorption slurry obtained in the step S1 for reaction, and discharging the treated flue gas. The phosphorus ore pulp mixed with the surfactant is used for flue gas desulfurization, turbulence resistance reduction can be achieved, mass transfer resistance of SO2 absorption is reduced, the suspension property of the ore pulp is enhanced, and therefore the reaction ispromoted, and the desulfurization reaction rate and desulfurization efficiency are remarkably improved. The device provided by the invention has the advantage of rapid reaction, has an automatic deslagging function, does not influence flue gas treatment, and is convenient and efficient to operate.

Description

technical field [0001] The invention belongs to the field of flue gas purification, and in particular relates to a method and a device for improving the desulfurization reaction rate of ore pulp by using a surfactant. Background technique [0002] With the rapid development of my country's economy, the pace of industrialization and urbanization continues to accelerate, energy consumption will continue to rise, the status quo of primary energy consumption such as coal and oil will not change, and the environment is facing more severe challenges. At present, there are frequent haze weather in large areas in my country, and the main reason for haze weather is SO 2 emissions. SO 2 The emissions of the pollution not only cause smog, but also easily form acid rain, cause soil acidification, reduce crop production, and corrode buildings and cultural relics. Therefore, reducing SO in the atmosphere 2 Content is the key to reducing smog and acid rain. [0003] At present, flue g...

AI Technical Summary

Problems solved by technology

In the existing phosphate pulp desulfurization technology, although the methods are different, the essence of desulfurization of phosphate pulp and other pulp is that sulfur dioxide in the flue gas enters the pulp through gas-liquid mass transfer, catalyzes oxidation to generate sulfuric acid, and then combines with mineral particles The reaction of active components such as calcium phosphate to achieve desulfurization; while the sulfuric acid leaching process is often limited, hindering the improvement of desulfurization efficiency

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