煤炭工程 ›› 2016, Vol. 48 ›› Issue (11): 124-127.doi: 10.11799/ce201611035

• 研究探讨 • 上一篇    下一篇

水玻璃影响煤泥浮选效果的灰色预测

徐东方1,朱书全2,朱志波1,崔浩然3   

  1. 1. 中国矿业大学(北京)
    2. 中国矿业大学
    3. 中国矿业大学(北京)化学与环境工程学院
  • 收稿日期:2015-12-10 修回日期:2016-03-14 出版日期:2016-11-10 发布日期:2016-12-16
  • 通讯作者: 徐东方 E-mail:xudongfang13@126.com

Grey-model forecast of coal flotation with sodium silicate

  • Received:2015-12-10 Revised:2016-03-14 Online:2016-11-10 Published:2016-12-16

摘要: 针对浮选过程中高灰细泥严重污染泡沫产品的问题,通过添加水玻璃作为抑制剂改善煤泥浮选效果,实验表明:水玻璃用量为1000g/t时,精煤灰分降低2.13%。在浮选试验基础上,采用灰色理论对添加抑制剂后的浮选效果进行预测,建立了水玻璃影响精煤产率和降灰效果的GM(1,1)预测模型。预测结果与试验结果表明,该模型预测精度较高,适合于水玻璃对煤泥浮选效果影响的预测。

关键词: 浮选, 抑制剂, 水玻璃, 灰色模型

Abstract: Added sodium silicate as depressant in flotation can to reduce the ash content of of concentrate and improve the separation effect. The ash content reduced by 2.13% with sodium silicate 1000g/t. Based on the flotation experimental results and grey system theory, a forecast model GM (1, 1) for coal flotation with sodium silicate was proposed. The precision of the model is high through the checkout by posterior variance examination. The results show that GM (1, 1) is a valid forecast model to estimate the effect of coal flotation with sodium silicate.

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