矿井水井下短程直滤处理工艺中试研究
Pilot study on underground short-flow direct filtration treatment process of mine water
刘宗 1周如林 1赵中梅1
作者信息
- 1. 北京天玛智控科技股份有限公司,北京 101399
- 折叠
摘要
针对当前矿井水井下处理存在处理流程长、占地面积大、运行效果差等问题,提出了以有机金属卷式超滤膜为主要净化核心的井下直滤处理工艺及智能化装备,并在宁东地区某煤矿井下综采工作面进行了中试研究.研究结果表明,在低运行通量条件下,直滤系统运行较为稳定,并未有明显的膜污染情况发生,膜通量衰减不足 3%.在初始运行通量为 47.4 L/(m2·h),回收率为84.6%条件下,运行48 d后,运行通量衰减9.01%,其膜通量的衰减主要由滤饼层沉积所引起的膜污染导致.同时在恒压运行方式下,提高直滤系统的回收率,进水量随产水量的增加而减小.在进水浊度为10～30 NTU范围内,直滤系统产水水质较为稳定,产水浊度低于 0.5 NTU.整体运行效果表明该直滤技术具有处理流程短、产水水质稳定、抗污染性能强等优点,在井下具有较为明显的应用优势.
Abstract
In view of the long processing process,large area and poor operation effect in the current underground treatment of mine water,we proposed the underground direct filtration treatment technology and intelligent equipment with organometallic coil ultrafiltration membrane as the main purification core.A pilot study was conducted on a fully mechanized mining face in a coal mine in Ningdong area.The results showed that under low flux,the direct filtration system operated stably,there was no obvious membrane contamination,and the membrane flux attenuation was less than 3%.When the initial flux was 47.4 L/(m2·h)and the recovery rate was 84.6%,the flux decreased by 9.01%after 48 days of operation.The decrease in membrane flux was primarily attributed to membrane fouling resulting from cake deposition.At the same time,under the constant pressure operation mode,the recovery rate of the direct filtration system was improved,and the water intake decreased with the increase of water production.In the influent turbidity range of 10～30 NTU,the water quality of direct filtration system was relatively stable,and the turbidity of water production was lower than 0.5 NTU.The pilot study results showed that,treatment process of the direct filtration technology was short,the water quality was stable and the anti-pollution performance was strong.And its application advantages was prominent in underground treatment of mine water.
关键词
矿井水/井下处理/超滤膜/直滤/短流程Key words
mine water/underground treatment/ultrafiltration membrane/direct filtration/short-flow process引用本文复制引用
出版年
2024
NETL
NSTL
万方数据