燃料与化工 ›› 2023, Vol. 54 ›› Issue (2): 8-10.

• 煤焦技术 • 上一篇    下一篇

低阶煤制备高反应性、高强度冶金型焦

  

  1. (1. 华北理工大学化学工程学院,唐山 063210; 2. 新疆吉泰低阶煤利用研究有限责任公司,哈密 839000)
  • 出版日期:2023-03-23 发布日期:2023-04-04

Preparation of metallurgical formed coke with high reactivity and high strength by using low-rank coal

  1. (2. College of Chemical Engineering, North China University of Science & Technology,Tangshan 063210,China; 3. Xinjiang Ginstar Low Rank Coal Utilization Research Co.,Ltd.,Hami 839000,China)
  • Online:2023-03-23 Published:2023-04-04

摘要: 提出了一种高比例利用低阶煤制备冶金型焦的方法。将低阶煤、低阶煤热解制成的半焦、具有一定黏 结能力的烟煤和煤沥青混合并搅拌均匀,使用线压力≥ 200 kN/cm 的大型高压制球机压成型煤。高压型煤在约 1 050 ℃高温干馏后成为冶金型焦。测试表明,冶金型焦的抗压强度在 5 000 N 以上,CRI 为 54%,CSR 达到 65%,可作为冶金焦炭使用。

关键词: 型焦, 低阶煤, 反应性, 反应后强度

Abstract: This paper presents a method for preparing metallurgical formed coke from low rank coal in high proportion. Low rank coal,semi-coke from low rank coal,bituminous coal with some binding capacity and coal asphalt are uniformly mixed and pressed into coal briquette by high-pressure pelletizing machine with linear pressure ≥200 kN/cm. The high-pressure coal briquette becomes metallurgical formed coke after dry distillation at about 1 050 ℃. The test result shows that the compressive strength of the metallurgical formed coke is more than 5 000 N,with CRI 54% and CSR 65%,which can be used as metallurgical coke.

Key words: Formed coke, Low rank coal, Coke reactivity(CRI), Coke strength after reaction(CSR)

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