Cause analysis and treatment of the unqualified gypsum produced by the FGD system in power plants

TAO Li1; ZHOU Nian-guang1; ZHOU Yan-ming1; YANG Xiao-ling2

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Cause analysis and treatment of the unqualified gypsum produced by the FGD system in power plants

更新时间：2025-11-18

- Cause analysis and treatment of the unqualified gypsum produced by the FGD system in power plants
- Vol. 31, Issue 2, Pages: 27-29(2011)
- 作者机构：
  
  1. 湖南省电力公司科学研究院
  2. 湖南省湘电试验研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： X701.3
- Published：2011
- 稿件说明：
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[1]陶莉,周年光,周艳明,杨小玲.火电厂FGD系统石膏不合格原因分析及处理[J].湖南电力,2011,31(02):27-29.

TAO Li1, ZHOU Nian-guang1, ZHOU Yan-ming1, et al. Cause analysis and treatment of the unqualified gypsum produced by the FGD system in power plants[J]. 2011, 31(2): 27-29.
[1]陶莉,周年光,周艳明,杨小玲.火电厂FGD系统石膏不合格原因分析及处理[J].湖南电力,2011,31(02):27-29. DOI：

TAO Li1, ZHOU Nian-guang1, ZHOU Yan-ming1, et al. Cause analysis and treatment of the unqualified gypsum produced by the FGD system in power plants[J]. 2011, 31(2): 27-29. DOI：

摘要

某电厂各机组FGD系统产出的石膏品质均出现不合格现象

通过详细调查和系统分析

发现吸收剂石灰石的活性低、杂质碳酸镁含量过高是引起该现象的根本原因

通过采取加大废水的排放量、置换浆液以及更换高活性的石灰石等措施

使石膏品质达到了设计要求。

Abstract

Based on the correlative data

the phenomenon of the poor quality gypsum

which were produced by the FGD system in given power plant

is interpreted in detail.The analysis results show that low activity and impurity of limestone are the main reason

which caused the poor soluble ability of calcium carbonate.The Mg2+ content was decreased by enhancing the wastewater discharge and/or replacing the slurry in desulfurization tower and the desulfurization efficiency was improved by using the high activity limestone.After adopting these methods

the gypsum quality reached the disign requirements.

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