A method and device for improving the desulfurization reaction rate of ore pulp by using surfactant

Abstract

The invention discloses a method and device for increasing the desulfurization reaction rate of ore pulp by using a surfactant. The method includes the following steps: S1. Prepare phosphate rock pulp with a liquid-solid ratio of 30-50%, and uniformly mix surface active S2, uniformly mix the flue gas to be desulfurized with oxygen, fully mix the mixed gas with the absorption slurry obtained in step S1 for reaction, and discharge the treated flue gas outside. The present invention utilizes phosphate rock slurry mixed with surfactants for flue gas desulfurization, which can reduce drag in turbulent flow and reduce SO 2 Absorption of mass transfer resistance, and enhance the suspension of pulp, thereby promoting the reaction, thereby significantly improving the desulfurization reaction rate and desulfurization efficiency. The treatment device of the invention has the advantages of quick response, automatic slag discharge function, no influence on flue gas treatment, convenient operation and high efficiency.

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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