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Lime wet desulphurization wastewater treatment device

A technology of wet desulfurization and wastewater treatment, which is applied in the field of ultra-low discharge of power plants, can solve the problems of wastewater treatment in ultra-low discharge systems, etc., and achieve the effect of treating a large amount of wastewater, reducing cumbersome processes, and less operating equipment

Inactive Publication Date: 2021-05-04
ANHUI JINGHE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of wastewater treatment in the ultra-low discharge system of the power plant, the purpose of the present invention is to provide a wastewater treatment device for lime wet desulfurization

Method used

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  • Lime wet desulphurization wastewater treatment device

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Embodiment Construction

[0011] A lime wet desulfurization wastewater treatment device, including a slurry tank, the inlet of the slurry tank is connected to a gypsum dehydrator, so that the wastewater flows into the slurry tank, the outlet of the slurry tank is connected to a clean water tank, and the clarified water in the slurry tank is transported to the clean water tank. A gypsum slurry discharge pipe is installed at the bottom of the tank, and a gypsum slurry discharge pump is installed on the gypsum slurry discharge pipe. The gypsum slurry is discharged through the return pipe to the absorption tower or a gypsum dehydrator for reuse, and an agitator is installed on the slurry tank to treat the waste water. Stir and clarify; set the dosing port on the clean water tank, which is connected to the regulating liquid from the system alkali pump for pH adjustment, and set the clean water pump at the drain of the clean water tank; set flushing water on the return pipe, and the flushing water comes from ...

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Abstract

The invention relates to a lime wet desulphurization wastewater treatment device which comprises a slurry tank, an inlet of the slurry tank is connected with a gypsum dehydrator to enable wastewater to flow into the slurry tank, a water outlet of the slurry tank is connected with a clear water tank, clear water in the slurry tank is conveyed to the clear water tank, a gypsum slurry discharge pipe is arranged at the bottom of the slurry tank, a gypsum slurry discharge pump is mounted on the gypsum slurry discharge pipe, gypsum slurry is discharged to an absorption tower or a gypsum dehydrator through a return pipe for recycling, and a stirrer is mounted on the slurry tank and used for stirring and clarifying wastewater; a dosing port is formed in the clear water tank, is connected with adjusting liquid from a system alkali pump and used for adjusting the pH value, and a clear water pump is arranged at a water outlet of the clear water tank; and flushing water is arranged on the return pipe and comes from a utility system. The dehydrator wastewater is directly clarified in the slurry tank, gypsum at the bottom of the slurry tank is directly conveyed to the dehydrator for dehydration, and clear water in the clear water tank can be discharged or recycled; and the wastewater treatment process is simple, the labor intensity is small, the wastewater treatment amount is large, and the operation cost is low.

Description

[0001] technical background [0002] The invention relates to a lime wet desulfurization wastewater treatment device, which belongs to the technical field of ultra-low emission of power plants. Background technique [0003] During the operation of the wet desulfurization system, the lime wet desulfurization device needs to replace and treat the wastewater quantitatively every day to solve the problem of salt content in the system. If the content of chloride ions in the desulfurization system cannot be guaranteed to meet the standard, the desulfurization efficiency will drop. Serious equipment corrosion and other problems affect the safe operation of equipment, and cannot meet the standard emission testing of online data, causing safety and environmental protection hazards. Contents of the invention [0004] In order to solve the problem of wastewater treatment in the ultra-low discharge system of a power plant, the object of the present invention is to provide a wastewater t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F11/121C02F103/18C02F101/10
CPCC02F1/66C02F11/121C02F2001/007C02F2103/18C02F2101/101
Inventor 丁玉祥张永成车振峰刘云行
Owner ANHUI JINGHE IND
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