水泥熟料水溶性铬(Ⅵ)浸出量与熟料总铬含量的定量研究  

Quantitative study on leaching amount of water-soluble chromium(Ⅵ)in cement clinker and total chromium content in clinker

作　　者：陈仕奇 赵帅飞 王方伟 王晓君 CHEN Shiqi(Anhui Shangfeng Jiexia Environmental Protection Technology Co.LTD.,Tongling 244000,Anhui,China)

机构地区：[1]安徽上峰杰夏环保科技有限责任公司,安徽铜陵244000

出　　处：《水泥》2024年第6期6-9,共4页Cement

摘　　要：本文利用数据统计方法对熟料水溶性铬(Ⅵ)的浸出量与熟料总铬含量进行研究,发现少量添加污染土或危废时水泥熟料的总铬含量无明显变化,但熟料水溶性铬(Ⅵ)的浸出量出现明显变化。进一步研究发现,熟料水溶性铬(Ⅵ)的浸出率与熟料总铬含量呈现稳定的负相关性,该相关性除受入窑原料的影响外,还与窑工艺参数密切相关,且窑工艺参数为该相关性的主要影响因素。后续验证试验表明:当窑工艺参数不变时,通过降低入窑原料的总铬含量可以有效降低熟料水溶性铬(Ⅵ)的浸出量。This article uses data statistical methods to analyze the leaching amount of water-soluble chromium(Ⅵ)and total chromium content in clinker.The results showed that the total chromium content of cement clinker had no obvious change when a small amount of contaminated soil or hazardous waste was added,but the leaching amount of water-soluble chromium(VI)of cement clinker had obvious change.Further study found that the leaching rate of water-soluble chromium(Ⅵ)in clinker presented a stable negative correlation with the total chromium content of clinker,which was closely related to the kiln process parameters besides the influence of raw materials into the kiln,and the kiln process parameters were the main influencing factors of the correlation.Subsequent verification tests showed that the leaching amount of water-soluble chromium(Ⅵ)in clinker can be effectively reduced by reducing the total chromium content of raw materials into kiln under the condition that kiln process parameters remained unchanged.

关 键 词：水泥熟料 总铬含量 水溶性铬(Ⅵ)含量 数据统计 

分 类 号：TQ172.18[化学工程—水泥工业]