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首页> 外文期刊>Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems >Particle removal enhancement in a high-temperature electrostatic precipitator for glass furnace
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Particle removal enhancement in a high-temperature electrostatic precipitator for glass furnace

机译：玻璃炉高温静电除尘器中的颗粒去除增强

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摘要

The flue gas generated from glass furnaces contains particles with high concentrations of alkali metals and hazardous heavy metals, which could reduce the lifespan of selective catalytic reduction (SCR) catalysts and lead to catalyst deactivation. Removing the particles before SCR could improve system operation reliability and reduce nitric oxides (NOx) emission. In this paper, the characteristics of fly ash from glass furnaces and the particle removal properties in the electrostatic precipitator (ESP) from 363 K to 623 K were studied. The particle collection efficiency was found to decrease with increasing temperature. A method of enhancing particle removal was proposed and tested through particle conditioning in a lab-scale experiment In order to change the characteristics of the fly ash, calcium carbonate powders were used as conditioning particles and the particle collection efficiency increased from 65.8% to 87.6% at 623 K. This method was further applied in an industrial high-temperature ESP for a glass furnace. When the ratio in mass between the particles from the glass furnace and from the conditioning proportion was 1:1.5, the particle collection efficiency of the ESP was improved significantly and the outlet particle concentrations decreased from 10323 mg/Nm(3) to 39.25 mg/Nm(3). (C) 2017 Elsevier B.V. All rights reserved.
机译：从玻璃炉产生的烟道气包含具有高浓度的碱金属和危险重金属的颗粒，其可以降低选择性催化还原（SCR）催化剂的寿命并导致催化剂失活。在SCR之前除去颗粒可以改善系统操作可靠性并降低一氧化氮（NOx）发射。本文研究了从玻璃炉的粉煤灰和静电沉淀器（ESP）中的粉煤灰的特性，从363k至623k进行。发现颗粒收集效率随温度的增加而降低。提出了一种增强颗粒去除的方法，并通过颗粒调理在实验室调节中测试，以改变粉煤灰的特性，使用碳酸钙粉末作为调理颗粒，颗粒收集效率从65.8％增加到87.6％在623K中，该方法进一步应用于玻璃炉的工业高温ESP中。当来自玻璃炉的颗粒和调节比例之间的质量比为1：1.5时，ESP的颗粒收集效率显着改善，出口颗粒浓度从10323mg / nm（3）降至39.25mg / nm（3）。 （c）2017 Elsevier B.v.保留所有权利。

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  • 来源
  • 作者

    Zheng Chenghang; Shen Zhiyang; Yan Pei; Zhu Weizhuo; Chang Qianyun; Gao Xiang; Luo Zhongyang; Ni Mingjiang; Cen Kefa;

  • 作者单位

    Zhejiang Univ State Key Lab Clean Energy Utilizat State Environm Protect Ctr Coal Fired Air Pollut Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Clean Energy Utilizat State Environm Protect Ctr Coal Fired Air Pollut Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Clean Energy Utilizat State Environm Protect Ctr Coal Fired Air Pollut Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Clean Energy Utilizat State Environm Protect Ctr Coal Fired Air Pollut Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Clean Energy Utilizat State Environm Protect Ctr Coal Fired Air Pollut Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Clean Energy Utilizat State Environm Protect Ctr Coal Fired Air Pollut Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Clean Energy Utilizat State Environm Protect Ctr Coal Fired Air Pollut Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Clean Energy Utilizat State Environm Protect Ctr Coal Fired Air Pollut Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Clean Energy Utilizat State Environm Protect Ctr Coal Fired Air Pollut Hangzhou 310027 Zhejiang Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 粉末技术;化学工业;
  • 关键词

    High-temperature; ESP; Glass furnace; Particle removal; Enhancement; Particle conditioning;

    机译：高温;尤其是玻璃炉;颗粒去除;增强;粒子调理;

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