Study on the Characteristics of Evaporation Product from Desulfurization Wastewater by Rotary Spray and Its Influence on the Resource Utilization of Fly Ash

SUN Zongkang; ZHENG Suoqi; ZHAN Lingxiao; YANG Linjun

doi:10.19805/j.cnki.jcspe.2025.240053

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Study on the Characteristics of Evaporation Product from Desulfurization Wastewater by Rotary Spray and Its Influence on the Resource Utilization of Fly Ash

更新时间：2025-11-28

- Study on the Characteristics of Evaporation Product from Desulfurization Wastewater by Rotary Spray and Its Influence on the Resource Utilization of Fly Ash
- Chinese Journal of Power Engineering Vol. 45, Issue 4, Pages: 612-618(2025)
- 作者机构：
  
  1. 广东电力发展股份有限公司,广东,广州,510000
  2. 东南大学能源热转换与控制教育部重点实验室,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.240053
  CLC： X773
- Published Online：28 April 2025，
  
  Published：2025
- 稿件说明：
移动端阅览
孙宗康,郑锁祺,詹凌霄,杨林军. 脱硫废水旋转喷雾蒸发产物特性及其对粉煤灰资源化利用的影响动力工程学报, 2025, 45(4): 612-618 https://doi.

org/10.19805/j.cnki.jcspe.2025.240053
孙宗康,郑锁祺,詹凌霄,杨林军. 脱硫废水旋转喷雾蒸发产物特性及其对粉煤灰资源化利用的影响动力工程学报, 2025, 45(4): 612-618 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240053.

org/10.19805/j.cnki.jcspe.2025.240053 DOI：

摘要

在脱硫废水旋转喷雾干燥中试平台上开展了喷雾蒸发试验

对喷雾干燥产物颗粒特性的形貌、组分以及流动性等进行了表征

并探讨了脱硫废水旋转喷雾蒸发对电除尘器运行和粉煤灰资源化利用的影响。结果表明:废水蒸发析出盐分多为大片状结构

部分粉煤灰颗粒通过晶桥连接

出现明显团聚;干燥产物晶型包括MgSO

、CaSO

·0.5H

O、SiO

和NaCl等;废水喷雾蒸发对飞灰颗粒有一定团聚作用

有利于提升电除尘器对细颗粒物的捕集效率;塔底蒸发产物流动性整体介于可出流粉体和具有内聚力粉体之间

随着塔底蒸发产物含水率升高

流动性变差;实验工况下

脱硫废水中约90%的氯元素进入蒸发产物并进入主烟道

主烟道飞灰氯含量略有上升

但仍能满足粉煤灰资源化利用相关的国家和行业标准。

Abstract

Spray evaporation experiments were carried out on the pilot rotary spray drying platform for desulfurization wastewater. The morphology

composition and flowability of the spray-dried products were characterized. The effects of desulfurization wastewater rotary spray evaporation on the operation of the electrostatic precipitator(ESP) and the resource utilization of fly ash were also discussed. Results show that the salt precipitated from wastewater evaporation forms mostly large flaky structure. Some fly ash particles appear obvious agglomeration through t

he crystal bridge connection. The drying products mainly contain crystalline salts including MgSO

CaSO

·0.5H

SiO

and NaCl

etc. The wastewater spray evaporation has a certain agglomeration effect on the fly ash particles

which is conducive to improving the ESP's capture efficiency of fine particles. The flowability of the evaporated products at the bottom of the tower is intermediate between the flowable powder and the cohesive powder. With the increase of the water content in the evaporated products

the flowability of drying products deteriorates. In the experimental conditions

about 90% of the chlorine in the desulfurization wastewater is transferred into the evaporated products and enters into the main flue. The mass concentration of the chlorine in the main flue fly ash increases slightly

but it can still meet the national and industrial standards related to the resource utilization of fly ash.

关键词

Keywords

references

MA Shuangchen, CHAI Jin, CHEN Gongda, et al. Research on desulfurization wastewater evaporation: present and future perspectives[J]. Renewable and Sustainable Energy Reviews, 2016, 58: 1143-1151.

赵宁, 冯永新, 林廷坤, 等. 热烟气环境下脱硫废水液滴蒸发特性研究进展[J]. 化工进展, 2021, 40(8): 4508-4514. ZHAO Ning, FENG Yongxin, LIN Tingkun, et al. Research progresses on evaporation characteristics of desulfurization wastewater droplets in high-temperature flue gas[J]. Chemical Industry and Engineering Progress, 2021, 40(8): 4508-4514.

马双忱, 陈嘉宁, 刘宁, 等. 低温烟气余热浓缩脱硫废水实验研究与探讨[J]. 动力工程学报, 2020, 40(1): 51-57, 64. MA Shuangchen, CHEN Jianing, LIU Ning, et al. Experimental study on the concentration of FGD wastewater using low-temperature flue gas[J]. Journal of Chinese Society of Power Engineering, 2020, 40(1): 51-57, 64.

AN Wenhao, ZHAO Jun, LU Jiangang, et al. Zero-liquid discharge technologies for desulfurization wastewater: a review[J]. Journal of Environmental Management, 2022, 321: 115953.

张娟, 曹兆军, 史海红, 等. 燃煤电厂脱硫废水分型与浓缩过程的盐类析出规律[J]. 动力工程学报, 2022, 42(1): 67-74. ZHANG Juan, CAO Zhaojun, SHI Haihong, et al. Salt precipitation behaviors of classification and concentration process for desulfurization wastewater in coal-fired power stations[J]. Journal of Chinese Society of Power Engineering, 2022, 42(1): 67-74.

ZHOU Hao, ZHAN Lingxiao, CHEN Heng, et al. Concentration of desulfurization wastewater using low-temperature flue gas and associated corrosion risk[J]. Environmental Science and Pollution Research, 2023, 30(7): 18395-18407.

王飞, 刘锋瑞, 杨凤玲, 等. 330 MW机组变负荷下低温余热闪蒸脱硫废水特性[J]. 洁净煤技术, 2023, 29(5): 105-112. WANG Fei, LIU Fengrui, YANG Fengling, et al. Characteristic of waste heat flash desulphurization wastewater of 330 MW unit under variable load[J]. Clean Coal Technology, 2023, 29(5): 105-112.

李飞, 陈海杰, 刘峰均, 等. 脱硫废水旋转喷雾蒸发特性实验研究[J]. 中国电力, 2021, 54(1): 188-195. LI Fei, CHEN Haijie, LIU Fengjun, et al. Experimental study on the characteristics of rotating spray evaporation of desulfurization wastewater[J]. Electric Power, 2021, 54(1): 188-195.

白璐, 王凯亮, 罗天翔, 等. 脱硫废水在热烟气环境中的蒸发特性及其产物特性研究[J]. 热能动力工程, 2020, 35(5): 188-195. BAI Lu, WANG Kailiang, LUO Tianxiang, et al. Evaporation performance and product characteristics of desulfurization wastewater in hot flue gas environment[J]. Journal of Engineering for Thermal Energy and Power, 2020, 35(5): 188-195.

YE Xinglian, AN Xizhong, ZHANG Hao, et al. Process simulation on atomization and evaporation of desulfurization wastewater and its application[J]. Powder Technology, 2021, 389: 178-188.

陈武, 王凯亮, 罗天翔, 等. 脱硫废水旋转雾化及其干燥蒸发特性试验研究[J]. 中国电机工程学报, 2019, 39(11): 3295-3302. CHEN Wu, WANG Kailiang, LUO Tianxiang, et al. Study on rotating spray atomization and drying evaporation characteristics of desulfurization waste-water[J]. Proceedings of the CSEE, 2019, 39(11): 3295-3302.

ZHAN Lingxiao, SHEN Tiejia, CHEN Heng, et al. Evaporation characteristics of a single desulfurization wastewater droplet in high-temperature gas[J]. International Journal of Heat and Mass Transfer, 2022, 185: 122317.

崔琳, 沈鲁光, 杨敦峰, 等. 中温烟气蒸发脱硫废水干燥过程及产物特性分析[J]. 煤炭学报, 2017, 42(7): 1877-1883. CUI Lin, SHEN Luguang, YANG Dunfeng, et al. Drying properties and product characteristics of desulfurization wastewater evaporation by medium-temperature flue gas[J]. Journal of China Coal Society, 2017, 42(7): 1877-1883.

KALMAN H. Effect of moisture content on flowability: angle of repose, tilting angle, and Hausner ratio[J]. Powder Technology, 2021, 393: 582-596.

TAKEUCHI Y, TOMITA T, KURODA J, et al. Characterization of mannitol granules and powder: a comparative study using two flowability testers[J]. International Journal of Pharmaceutics, 2018, 547(1/2): 106-113.

王涵斌,史鼎元,王文玲.沙堆休止角与含水量关系探究[J].物理与工程,2019,29(1):104-109. WANG Hanbin, SHI Dingyuan, WANG Wenling. A modification theory for the existing theory of water content and angle of repose [J]. Physics and Engineering,2019,29(1):104-109.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Chloride Migration, Transformation Behavior and Risk Assessment During Evaporation of Desulfurization Wastewater

Study on the Differentiation Pattern into Fly Ash and Bottom Ash in a Coal-fired Boiler

Droplet Evaporation Characteristics of Desulfurization Wastewater During Low-temperature Concentration

Review on Study for Spray Evaporation Characteristics of Desulfurization Wastewater

Related Author

QI Hongfeng

ZHAO Ning

CHEN Heng

YANG Linjun

LIU Qi

LIANG Yu

ZHANG Hong

WANG Mingxing

Related Institution

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University

School of Mechatronics and Energy Engineering, NingboTech University

China Southern Power Grid Technology Co., Ltd.

Guangzhou Zhongdian Lixin Thermal Power Co., Ltd.

Jiangsu Xinhai Power Generation Co., Ltd

AI问答

⁰