A method for optimizing the operation of the oxidation fan in a single-tower double-circulation desulfurization device

Abstract

The invention relates to a method for optimizing the operation of an oxidation fan of a single-tower double-cycle desulfurization device. The single-tower double-cycle desulfurization device includes a first-level desulfurization slurry circulation system, a second-level desulfurization slurry circulation system, an oxidation air system, a flue gas system, and a demister. , gypsum discharge system, operating parameter monitoring system, and intelligent control system; the intelligent control system collects, stores, and analyzes the operating parameters of the entire desulfurization device, and builds a sulfur circulation slurry system for sulfite under certain flue gas load and pH value conditions. The corresponding functional relationship of the content, and build a self-learning relational database, and establish a database of oxidation air flow, pressure and primary and secondary desulfurization to form a primary and secondary desulfurization circulating slurry system oxidation air distribution ratio. The invention effectively solves the influence of the working condition load and flue gas condition changes on the energy consumption of the oxidation air system of the wet desulfurization device, and realizes the safe, economical and efficient operation of the wet desulfurization system.

Description

technical field [0001] The invention belongs to the technical field of air pollutant control, and specifically relates to an operation optimization method of an oxidation blower of a single-tower double-cycle desulfurization device. Background technique [0002] The single-tower double-circulation desulfurization device belongs to the efficiency-enhancing technology of the pH value partition absorption tower. The physical isolation partition of the first-stage circulating slurry and the upper-level spraying secondary circulating slurry, and the pH of the upper and lower two-stage circulating slurry are controlled separately. Part of the secondary circulating slurry returns after passing through the cyclone system, and part of it is discharged to the slurry pool in the absorption tower. The flue gas diversion cone is installed between the primary and secondary circulation to improve the uniform distribution of air flow. [0003] Intelligent control is a rapidly developing n...

AI Technical Summary

Problems solved by technology

At present, most of the oxidation fans are constant-speed fans, and they are installed in separate towers. Excessive air supply by fans is common, and the energy-saving effect is poor, which is not conducive to the quality control of the slurry in the desulfurization tower, and also affects the effect of pH value partition control.

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