Cause Analysis and Treatment of Slurry Foaming in Desulfurization Absorption Tower of 300MW Unit

In view of the serious slurry foaming and overflow problems in the flue gas desulfurization system of a company in Shandong, the causes were analyzed and improvements were made on the basis of the original process. The results show that the inadequate combustion of the intermediate ash of the boiler...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2021-07, Vol.804 (3), p.32008
Main Authors: Wu, Jianxun, Xue, Fangming
Format: Article
Language:English
Subjects:
Absorbers (equipment)
Air pollution control
Defoaming
Desulfurization
Desulfurizing
Flue gas
Flue gas desulfurization
Fly ash
Foaming
Gypsum
Moisture content
Organic matter
Overflow
Pollution control equipment
Power consumption
Process water
Slurries
Water content
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In view of the serious slurry foaming and overflow problems in the flue gas desulfurization system of a company in Shandong, the causes were analyzed and improvements were made on the basis of the original process. The results show that the inadequate combustion of the intermediate ash of the boiler and the high concentration of organic matter in the desulfurization process water are the main reasons for the slurry foaming; after improving the boiler operating conditions and adding defoamers, the boiler fly ash contains carbon The circulating pump current returns to normal levels, the desulfurization efficiency is increased from 97.2% to 99%, the power consumption of the circulating pump is reduced from 380 kWh to 316 kWh, and the moisture content of desulfurized gypsum is reduced from 16% to 9.5%.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/804/3/032008