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Influence of soda-ater glass binder and pelletization conditions on the quality of fluorite pellets

机译:苏打水玻璃粘合剂对氟土颗粒质量的影响

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Fluorite concentrate is used in chemical, ceramic, optical and metallurgical industries. By the annual fluorite consumption in the world, metallurgy takes the third place, while in Yugoslavia, metallurgy is on the second place after the chemical industry. Number of ore veins that is able to give the coarse-pieces of fluorite concentrate, has decreased. This is the main reason of using the agglomeration process for the floated concentrate to obtain coarse pieces of fluorite that is used as a fluxing agent in ferrous metallurgy. In that regard, this research was done with two aims: to determine possibilities of obtaining fluorite concentrate pellets by the use of sodium silicate (Na_2SiO_3) as a binder; and to determine the influence of pelletization conditions on the qualityof the fluorite pellets, from "Ravnaja-Krupanj" deposit. Influences of binder type and pelletization conditiosn on the mechanical characteristics of finsiehd products (impact and stress resistance of fluorite pellets), with the aim to obtain a high quality fo fluorite pellets, were investigated with particular attention. Chemical analysis, X-ray diffraction analysis of powder, grain size analysis and determination of impact and pressure resistance of pellets were the methods used in the research. Internal standard of latent user, metallurgical concern "Sartid-1913", was used as determination criteria of quality. It was concluded that change of pelletization conditions (quantity of binder, time of homogenization, amount of added water, etc.) makes significant changes of pellets quality, and that fluorite flotation concentrate from "Ravnaja-Krupanj" deposit could be successfully pelletized with soda-waterglass binder. The main conclusion is: possible high-quality substitution of improted coarse-pieces fluorite in the domestic metallurgy.
机译:萤石浓缩物用于化学,陶瓷,光学和冶金行业。通过世界上的每年萤石消费,冶金占据第三位,而在南斯拉夫,冶金在化学工业后第二名。能够给予粗氟浓缩物粗碎片的矿石数量降低。这是利用浮动浓缩物的附聚方法获得粗氟土的主要原因,得到用作冶金冶金中的助熔剂。在这方面,这项研究是用两个目的进行的:确定通过使用硅酸钠(Na_2SiO_3)作为粘合剂获得氟浓缩颗粒的可能性;并确定颗粒化条件对萤石颗粒质量的影响,来自“Ravnaja-Krupanj”沉积物。特别注意,粘合剂型和造粒术对芬莎产品(萤石颗粒的抗冲击性能)的机械特性的影响,采用旨在获得高质量的萤石颗粒。化学分析,粉末的X射线衍射分析,粒度分析和测定颗粒的抗冲击性和耐压性是研究中使用的方法。潜在用户的内部标准,冶金关注“Sartid-1913”被用作质量的确定标准。得出结论,颗粒化条件的变化(粘合剂的量,均质化时间,加入的水量等)产生显着变化的颗粒质量,并且可以用苏打水成功地造粒来自“Ravnaja-Krupanj”沉积物的萤石浮选浓缩物 - 水玻璃粘合剂。主要结论是:在国内冶金中可能的高质量替代型粗碎片。

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