采用高硬度助磨剂对煤基碳素进行超细粉碎的试验研究

发布时间：2018-02-26 13:15

本文关键词： 煤基碳素超细粉碎助磨剂磨损　出处：《煤炭技术》2017年01期 　论文类型：期刊论文

【摘要】：在粉体混合粉碎理论的基础上,采用石英砂、碳化硅以及白刚玉3种高硬度材料作为助磨剂,研究了3种助磨剂在煤基碳素超细粉碎过程中的助磨规律。试验结果表明:在3种助磨剂用量的试验中,石英砂、碳化硅以及白刚玉的适宜用量分别为3.00%、5.02%、4.98%,而3种助磨剂在相同用量时,石英砂助磨效果更好,煤基碳素D_(50)最低达到3.26μm;在助磨剂用量一定的情况下,随着助磨剂莫氏硬度的减小,煤基碳素D_(50)呈现先增大后减小的趋势,而随着助磨剂密度的减小,煤基碳素D_(50)呈逐渐减小的趋势;同样,在助磨剂用量一定的情况下,随着助磨剂莫氏硬度和密度的增大,助磨剂-0.25 mm的含量逐渐增多,助磨剂的磨损量逐渐增加。
[Abstract]:On the basis of powder mixing and grinding theory, three kinds of high hardness materials, such as quartz sand, silicon carbide and white corundum, were used as grinding aids. The grinding aid law of three kinds of grinding aids in the process of coal based carbon ultrafine grinding was studied. The experimental results showed that in the experiment of three kinds of grinding aids, quartz sand, The appropriate amount of silicon carbide and white corundum were 3.00 / 5.02 and 4.98, respectively. When the three kinds of grinding aids were used in the same amount, the grinding effect of quartz sand was better, and the coal based carbon DX _ (50) was at least 3.26 渭 m. When the amount of grinding aid was fixed, the hardness of grinding aid decreased with the decrease of Morse hardness. Coal-based carbon DX _ (50) showed a trend of first increasing and then decreasing, while with the decrease of the density of grinding aids, coal based carbon DX _ (50) gradually decreased; similarly, when the amount of grinding aids was fixed, with the increase of the hardness and density of grinding aids, The content of grinding aids-0.25 mm increased gradually, and the wear amount of grinding aids increased gradually.
【作者单位】：六盘水师范学院化学与化学工程系;中国矿业大学国家煤加工与洁净化工程技术研究中心;
【基金】：江苏省产学研联合创新项目之前瞻性联合研究项目(SYB201320574) 国家自然科学基金项目(51374207)
【分类号】：TQ127.11;TQ029.1

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