%0 Journal Article
%T 系列药剂量分选超细粒煤试验研究                -
%A 丁志杰
%A 王祖讷
%J 洁净煤技术
%D 2005
%X 变化乳化药剂量进行超细粒煤的分选试验,贯穿运用3种细粒煤界面分选工艺方法;通过控制加药量,从少油量的泡沫浮选过渡到稍多油量的选择性疏水聚团,再逐渐增加油量,一直到大油量的油团聚,通过观察测量絮团大小,分析测定产物灰分、收率,寻找从小油量到大油量这整个过程所涉及的分选行为关系规律,此过程的研究对于细粒煤界面分选最佳条件的选择具有参考意义。 The effect of the varying dosage of emulsified collector on the separation of the separation process for ultra-fine coal was investigated.Three kinds of interface chemistry techniques: conventional flotation,aggregative flotation and oil agglomerates screening were used in this process.The addition of collector to a suspension of small hydrophobic coal particles sets up a flocculation process in which oil droplets can condense at the points of particle contact to form pendulum bridges.Depending on the amount of oil,this pendulum flocculation process can result in the formation of flocks,macro flocks or spherical agglomerates.The agglomerates were viewed and photographed with a transmitted light microscope with research quality optics.Agglomerates size distribution was measured by laser beam master size.The product ash content and the yield were determined.The study aims at optimizing the condition for beneficiating ultra-fine coal
%K 选择性絮团
%K 聚团浮选
%K 疏水颗粒 selective agglomeration
%K aggregative flotation
%K hydrophobic particles.
%U http://www.jjmjs.com.cn/WKD/WebPublication/paperDigest.aspx?paperID=1b5cb23e-dea7-4d66-8aee-f7f9e4b26a10