烟气净化副产物制备陶粒的试验*

现代矿业 ›› 2020, Vol. 36 ›› Issue (12): 227-.

烟气净化副产物制备陶粒的试验*

范瑞华¹石零^1,2常玉锋^1,2

1.江汉大学化学与环境工程学院；2.湖北省工业烟尘污染控制重点实验室

出版日期:2020-12-25 发布日期:2021-10-06

Test on Preparation of Ceramsite from ByProducts of Gas Cleaning System

FAN Ruihua¹SHI Ling ^1,2CHANG Yufeng ^1,2

1.School of Chemical and Environmental Engineering,Jianghan University；
2.Hubei Key Laboratory of Industrial Fume & Dust Pollution Control

Online:2020-12-25 Published:2021-10-06

摘要/Abstract

摘要： 工业烟气超低排放带来烟气净化副产物种类和数量的急剧增加，因此产生了烟气净化副产物难以综合利用的问题。基于烧制陶粒的基本成分分析，以烟气净化治理过程中捕集的除尘灰为成陶原料，以失效的活性焦为产气成分，并通过掺混黏土来调节原料配比，采用L9（33）正交设计方法进行陶粒的烧制试验研究。研究结果表明，在黏土占41.7%～45.5%、活性焦占4.5%～8.3%和除尘灰占50.0%的原料配比下，在100 ℃干燥30 min、400 ℃预热15 min、1 150 ℃焙烧15 min和自然冷却的焙烧制度下，烧制出的陶粒的堆积密度、筒压强度、1 h吸水率和重金属浸出浓度均满足国家标准。

关键词: 烟气净化陶粒除尘灰活性焦正交试验

Abstract: The ultralow emission of industrial flue gas has brought about a sharp increase in the types and quantities of byproducts of gas cleaning system.However,it brings about difficults of recover and utility the byproducts effectively.Based on the component analysis of the haydite,precipitator dust,used as the pottery component,and expired activated coke,used as the gas component,were mixed with clay for a suitable ratio of raw materials.The L9（33）orthogonal experiment model was selected in the firing process of ceramsite.The results showed that the optimum proportion was 41.7%～45.5% of clay,4.5%～8.3% of expired activated coke and 50.0% of precipitator dust in quality,and the optimum roasting system was drying at 100 ℃ for 30 minutes,preheating at 400 ℃ for 15 minutes,roasting at 1 150 ℃ for 15 minutes,and natural cooling.The bulk density,cylindrical compress strength,water absorption in 1h and leaching concentration of heavy metal of the fired ceramsite all met the national standards.

Key words: gas cleaning, ceramsite, precipitator dust, activated coke, orthogonal experiment

范瑞华石零, 常玉锋, . 烟气净化副产物制备陶粒的试验*[J]. 现代矿业, 2020, 36(12): 227-.

FAN RuihuaSHI Ling, CHANG Yufeng, . Test on Preparation of Ceramsite from ByProducts of Gas Cleaning System[J]. Modern Mining, 2020, 36(12): 227-.