Operation optimization method for assisting wastewater commissioning of wet desulphurization system

Abstract

The invention discloses an operation optimization method for assisting wastewater commissioning of a wet desulphurization system. The operation optimization method comprises the following steps: 1) constructing a wastewater treatment and discharge online operation control system calculation model; 2) obtaining the chloride ion concentration CCl<-> of a slurry in a desulfurization tower, the chloride ion concentration C1 of the desulfurization wastewater entering the desulfurization tower and the chloride ion concentration C2 of supplemented water of the desulfurization tower, and turning to step 3) when the chloride ion concentration CCl<-> of the slurry in the desulfurization tower is greater than or equal to a preset concentration value; 3) calculating the wastewater treatment flow v ofthe desulfurization tower; and 4) sending the wastewater treatment flow v of the desulfurization tower, calculated in the step 3), to an operation picture of an operator or handheld equipment of the operator, and adjusting the flow of the wastewater entering the desulfurization tower according to the wastewater treatment flow v of the desulfurization tower by the operator. The method can accurately calculate the wastewater treatment flow of the desulfurization tower, and provides data support and operation assistance for operation of the desulfurization wastewater system.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to an operation optimization method for auxiliary wastewater commissioning of a wet desulfurization system. Background technique [0002] The wet desulfurization process is the most widely used desulfurization technology at present. During the operation of the wet desulfurization process, the chlorides in the flue gas are absorbed by the desulfurization slurry, and the chloride ion content in the desulfurization absorption tower slurry continues to increase, resulting in a decline in desulfurization efficiency and gypsum quality. , which will have a negative impact on the desulfurization system. Therefore, in order to stably control the concentration of chloride ions in the slurry, it is necessary to remove a certain amount of desulfurization wastewater and replenish fresh water in the wet desulfurization system. [0003] At present, in the actual operation of the de...

AI Technical Summary

Problems solved by technology

At present, the following problems generally exist in the wet desulfurization wastewater treatment and discharge system: ① There is no effective judgment standard for the start and stop of the wastewater treatment and discharge system, resulting in large differences in the operation of the desulfurization system, wastewater treatment and discharge system; ② Wastewater treatment and discharge The system starts and stops frequently, and the operation stability and economy are poor; ③The waste water treatment and discharge system cannot be started and stopped on demand, resulting in problems such as corrosion of the desulfurization system, decreased desulfurization efficiency, and poor quality of gypsum; ④The treatment capacity of the waste water treatment and discharge system is not enough Planning, lack of quantitative indicators for chemical dosing, resulting in poor wastewater treatment effect

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