摘要
为了降低支架传动介质的化学需氧量(COD),减少有机排放,需要控制体系添加剂加入量,同时考虑到生物降解性能,研究制备了一种新型低化学需氧量支架液压液。该支架液压液以肖顿鲍曼缩合方法制备的多功能有机羧酸谷氨酸醇胺盐为主添加剂,复配脂肪醇聚氧乙烯醚类乳化剂、聚醚类消泡剂调和制得,其各项指标均符合煤炭行业标准通过条件,配制的工作液化学需氧量仅为6.04×10^3 mg/L。排放废液经常规“水解酸化+A/O”处理工艺进行工业性降解试验,各段工艺能够高效运行且保持稳定,化学需氧量指标逐步降低,且能够利用“水解酸化+A/O”处理工艺进行有效降解,此种新型低化学需氧量支架液压液具备良好的节能减排效果。
In order to reduce the chemical oxygen demand(COD)of the transmission medium of support and reduce organic emissions,a new type of low COD support hydraulic fluid was developed by controlling the amount of additives in the system and considering the biodegradability.The low COD support hydraulic fluid was prepared by using multifunctional organic carboxylic acid glutamic acid alcohol amine salt prepared by a Schoton-Bowman condensation method as a main additive,mixed with fatty alcohol polyoxyethylene ether emulsifier and polyether defoamer.All indexes of the hydraulic fluid met the requirements of coal industry standard.The COD of the working fluid was only 6.04×10^3 mg/L.The industrial degradation test was carried out by the conventional"hydrolytic acidification+A/O"treatment process,each process could operate efficiently and keep stable,and the COD index was gradually reduced,and could be effectively degraded by the"hydrolytic acidification+A/O"treatment process.This new type of low COD support hydraulic fluid had good energy saving and emission reduction effect.
作者
侯建涛
杨正凯
Hou Jiantao;Yang Zhengkai(Mine Oil Products Branch of China Coal Research Institute, Chaoyang, Beijing 100013, China;State Key Laboratory of Coal Resources High-Efficient Mining and Clean Utilization, Chaoyang, Beijing 100013, China;Coal Research Institute Co., Led., Chaoyang, Beijing 100013, China;School of Energy and Mining Engineering, China University of Mining & Technology, Beijing, Haidian, Beijing 100083, China)
出处
《中国煤炭》
2020年第8期100-104,共5页
China Coal
基金
中国煤炭科工集团面上项目(2018MS004)。
关键词
低COD
液压支架
液压液
降解性能
low COD
hydraulic support
hydraulic fluid
degradation property
