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露天矿矿井水处理工艺中污泥脱水问题及对策研究

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以某露天煤矿矿井水车间污泥脱水问题为例,根据混凝沉淀正交加药实验结果,分析在不同PAC和PAM加药量下上清液浊度和沉降时间的关系;根据污泥比阻公式分析得出,污泥浓度从3%分别提高到5%和10%时,污泥比阻降低43.2%和75.7%;通过加药实验建立污泥调理加药的回归方程指导加药;在前人研究的压滤公式中建立压滤时间与含固率关系方程,可以通过单一时间变量预测泥饼含水率,为指导设计和现场工作提供了思路.
An investigation into the challenges and strategies for sludge dewatering in the open-pit mine water treatment process
This article takes the sludge dewatering problem in a certain open-pit coal mine water car as an example.Through the analysis of the relationship between the turbidity of the supernatant and settling time under different PAC and PAM dosage through coagulation and sedimentation orthogonal dosing experiments,and the analysis of the sludge specific resistance formula,the sludge concentration is increased from 3%to 5%and 10%,respectively,and the sludge specific resistance is reduced by 43.2%and 75.7%.A regression equation for sludge conditioning and dosing is established through dosing experiments to guide dosing Establishing an equation for the relationship between filtration time and solid content in the filtration formula studied by previous researchers can explore the prediction of mud cake moisture content through a single time variable.This provides a way to guide design and on-site work,and provides some reference for other similar projects.

open pit minelignitelignite mine watercoagulating sedimentationdewateringpressure filtration cycle

姜鹏飞

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中煤科工集团杭州研究院有限公司,浙江杭州 310000

露天矿 褐煤 矿井水 混凝沉淀 污泥脱水 压滤周期

2024

煤炭加工与综合利用
中国煤炭加工利用协会

煤炭加工与综合利用

影响因子:0.496
ISSN:1005-8397
年,卷(期):2024.(3)
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