Analysis and Preventive Measures for Scaling in Mist Eliminator of WFGD System

doi:10.3969/J.ISSN.2095-3429.2017.01.007

Power Generation Technology ›› 2017, Vol. 38 ›› Issue (1): 30-34.DOI: 10.3969/J.ISSN.2095-3429.2017.01.007

Previous Articles Next Articles

Analysis and Preventive Measures for Scaling in Mist Eliminator of WFGD System

DANG Long¹, ZHANG Xiao-ling², WANG Zhi¹, CHEN Jun¹, SHI Chen-xin¹

1. Shaanxi Huadian Puchen Power Generation Co., Ltd, Pucheng 715501, China;
2. Huadian Electric Power Research Institute, Hangzhou 310030, China

Received:2016-11-16 Revised:2017-01-06 Published:2017-02-28 Online:2017-02-28

Abstract

Abstract: In a power plant,the scaling accident of mist eliminator occured frequently in the 660 MW unit flue gas desulfurization system. The problem had seriously affected the normal operation. To solve this problem, this paper analyzed the scaling samples and the factors which affected the operation of the mist eliminator. It is concluded that the mixed scales formed by the deposition and the crystallization reaction between the flue gas and the slurry. The mixed scales and the washing is not in time are the reasons for the failure of the mist eliminator. For this problem,a series of preventive measures are put forward

Key words: desulfurization, mist eliminator, scaling, blocking, preventive measure

CLC Number:

X701.3

DANG Long, ZHANG Xiao-ling, WANG Zhi, CHEN Jun, SHI Chen-xin. Analysis and Preventive Measures for Scaling in Mist Eliminator of WFGD System[J]. Power Generation Technology, 2017, 38(1): 30-34.

[1]	Taozhu YIN, Yongsheng ZHANG, Tao WANG, Jiawei WANG. Preparation of Sulfur-doped Porous Carbon and Its Electro-adsorption Performance for Heavy Metals in Desulfurization Wastewater [J]. Power Generation Technology, 2023, 44(3): 382-391.
[2]	Wenbin LIU, Lulu LI, Xiaojin LI, Xuan YAO, Hairui YANG. Study on Parameter Optimization of Desulfurized Wet Flue Gas in Spray Condensation Process [J]. Power Generation Technology, 2023, 44(1): 107-114.
[3]	Cunwen LI, Zaihua WANG, Tao CHEN, Qianwei FENG, Ketao XU, Yang ZHANG. Research on Performance Prediction of Flue Gas Desulfurization System Based on Operation Data of Coal-fired Power Station [J]. Power Generation Technology, 2022, 43(4): 673-678.
[4]	Shuangping ZHANG, Weixiong CHEN, Xibu JIA, Yuan YUAN. Simulation Study on Influence of Installation Height of Mist Eliminator on Liquid Holdup of Flue Gas in Desulfurization Tower [J]. Power Generation Technology, 2021, 42(2): 247-253.
[5]	Guohua QIU,Hongge WEI,Xiujin LIANG,Zhuang LI,Fengji WANG,Yue ZHU. Energy Consumption Analysis of Desulphurization Ultra-low Emission Operation and Outlook on Its Energy-saving Operation in Thermal Power Plants [J]. Power Generation Technology, 2020, 41(5): 510-516.
[6]	Weibo HAN,Shuang BIAN,Tao WANG,Jiawei WANG,Yongsheng ZHANG,Weiping PAN. Research Progress on Control of Heavy Metals Pollutants in Desulfurization Wastewater and Sludge of Coal-fired Power Plants [J]. Power Generation Technology, 2020, 41(5): 497-509.
[7]	Jianzhong LIU, Cong CHEN, Zhihao SUN, Jingfeng WU, Xiaojun WANG. Desulfurization Wastewater-assisted Coal Electrolysis for Hydrogen Production in Coal-fired Power Plants [J]. Power Generation Technology, 2020, 41(5): 536-542.
[8]	Yue ZHU,Yonglong YANG. Influence Analysis on Haze Control of Ultra-low Emission Wet Flue Gas Desulfurization of Coal-fired Power Plants [J]. Power Generation Technology, 2020, 41(3): 295-300.
[9]	Chunsong YE,Rong CAO,Wei LIANG,Wenyu ZHU,Wei ZHENG. Decomposition of Chloride and Ammoniate in the Evaporation Process of Desulfurization Wastewater With High Temperature Flue Gas [J]. Power Generation Technology, 2019, 40(4): 362-366.
[10]	Jiang FAN,Chenxi HUANG,Weixiong CHEN,Jiping LIU,Junjie YAN. Theoretical Analysis of Flue Gas Exhaust Temperature of White Smoke Elimination Technology for Coal-fired Units [J]. Power Generation Technology, 2019, 40(3): 239-245.
[11]	Haiwei YAN,Yazhao WANG,Jingdong GUO,Ke WANG,Dongmei LIAO. Cause Analysis and Control Countermeasures of Slurry Overflow in Desulfurization Absorber Tower Wastewater Pit [J]. Power Generation Technology, 2019, 40(2): 141-147.
[12]	Wending LI,Huihua GAO,Wenfeng CAI. Scaling Analysis and Preventive Measures of Limestone-Gypsum Wet Flue Gas Desulfurization [J]. Power Generation Technology, 2019, 40(1): 51-55.
[13]	Zhongwei WANG,Junjian SUN,Lichun ZHAO,Dawei ZHENG,Xiang LI,Wanjun QIAO,Hongbo MIAO,Zhenghua WU. Study on the Anticorrosive Methods for Reinforced Concrete Structure Chimney of Power Plant Caused by Wet Desulfurization [J]. Power Generation Technology, 2018, 39(6): 546-553.
[14]	Shuqin FENG,Xiaoze DU,Lijun YANG,Xinming XI. Evaporation Characteristics of Atomized Droplets Sprayed in Flue Gas Flow [J]. Power Generation Technology, 2018, 39(4): 343-353.
[15]	Ling QIN,Honglei DING,Weiguo PAN,Lazhen WANG,Chenggang DING,Shiyi GUO. Numerical Simulation of Entrainment by Jet Flow Characteristics in Spray Semi-dry Desulfurization Tower [J]. Power Generation Technology, 2018, 39(4): 336-342.

Analysis and Preventive Measures for Scaling in Mist Eliminator of WFGD System

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments