摘要
采用烃类油蒸发制造油气,将油气通入浮选柱气泡发生器的吸气口,生成油泡。对低阶煤煤泥进行油泡柱浮选试验,试验结果表明:油泡对低阶煤煤泥具有强捕收能力与高选择性,分选指标较好。将油泡浮选技术用于工业浮选柱分选,可有效降低浮选捕收剂用量,浮选泡沫层稳定,分选指标好。油泡浮选技术在低阶煤煤泥浮选提质中的应用,为低阶煤煤泥的资源化利用探索出一条新的途径。
When the oil gas produced through evaporation of hydrocarbon oil passes through the inlet of flotation colum n's air bubble generator,oil-coated bubbles are generated.Result of oil-coated air bubble flotation of low-rank fine coal indicates that by using this process,a remarkable flotation result can he achieved because oil-coated bubble is high in collecting capacity and selectivity.Industrial application of the technology for flotation of low-rank fine coal with flotation column can lead to reduction of consumption of collector,higher stability of foam layer and improved separation indices.Application of the technology for upgrading of low-rank fine slime proves to be a new approach for utilization of the low-rank coal slime resource.
作者
于伟
YU Wei(School of chemistry and Chemical Engineering,Xi’an University of Science and Technology,Xi’an 710054,China)
出处
《选煤技术》
CAS
2021年第1期121-125,共5页
Coal Preparation Technology
基金
国家自然科学基金资助项目(U1903207)。
关键词
低阶煤浮选
油泡浮选技术
浮选柱
捕收剂用量
可燃体回收率
:flotation of low-rank coal
oil-coated air bubble flotation technology
flotation column
collector dosage
recovery of combustible matter
