Controlling fine particles in flue gas from lead-zinc smelting by plasma technology

Tao ZHU (竹涛); Ruonan WANG (王若男); Xing ZHANG (张星); Yiwei HAN (韩一伟); Wenfeng NIU (牛文凤); Zeyu XUE (薛泽宇); Lifeng WANG (王礼锋)

doi:10.1088/2058-6272/ab77d3

Plasma Science and Technology > 2020 > 22(4): 44004-044004. > DOI: 10.1088/2058-6272/ab77d3

Tao ZHU (竹涛), Ruonan WANG (王若男), Xing ZHANG (张星), Yiwei HAN (韩一伟), Wenfeng NIU (牛文凤), Zeyu XUE (薛泽宇), Lifeng WANG (王礼锋). Controlling fine particles in flue gas from lead-zinc smelting by plasma technology[J]. Plasma Science and Technology, 2020, 22(4): 44004-044004. DOI: 10.1088/2058-6272/ab77d3

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Controlling fine particles in flue gas from lead-zinc smelting by plasma technology

¹ Institute of Atmospheric Environmental Management and Pollution Control, China University of Mining & Technology (Beijing), Beijing 100083, People's Republic of China
² State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, People's Republic of China
³ Shaanxi Key Laboratory of Lacustrine Shale Gas Accumulation and Exploitation (under planning), Shaanxi Province 710065, People's Republic of China

Funds: This work is supported by the State Key Laboratory of Organic Geochemistry, GIGCAS (No. SKLOG-201909) and the Fundamental Research Funds for the Central Universities (2009QH03).

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Received Date: September 01, 2019
Revised Date: February 16, 2020
Accepted Date: February 18, 2020

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Abstract

Abstract

With the aim of controlling the problem of fine particles in the flue gas of lead-zinc smelting, a low-temperature plasma-electrocoagulation and electric bag composite dedusting experimental platform was designed by combining electrocoagulation and electric bag composite dust removal technology based on the research of low-temperature plasma technology. Firstly, the properties of fine particles in flue gas from lead-zinc smelting were analyzed, and the effects of input voltage, filter wind speed, dust concentration, and pulse-jet ash-cleaning cycle on the dust collection efficiency of the integrated device were studied. Then, the energy efficiency of the integrated technology was analyzed, and the control mechanism of the fine particles was revealed. The experimental results show that the integrated technology of low-temperature plasma-electrocoagulation and electric bag composite dust removal achieves a fine particle removal efficiency of more than 99.99% and the energy consumption per unit mass of the dust is only 0.008 kW·h/g. The integrated technology has broad application prospects and farreaching practical significance for the lead-zinc smelting industry to achieve ultra-low emission targets for flue gas and achieve energy-saving and emission reduction effects.

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Controlling fine particles in flue gas from lead-zinc smelting by plasma technology