论文部分内容阅读
通过焦炭反应性(CRI)和反应后强度(CSR)在模拟高炉内焦炭热性质中存在问题的分析,提出了CRI和反应后热性质(PRTP)及其检测方法,指标包括溶损反应开始温度、溶损速率、等溶损率后强度、反应后热处理性和热处理后强度.7种高炉用焦炭的CRI和CSR及CRI-PRTP的实验研究和分析显示,几种焦炭的反应初始温度有较大差别,最大相差44℃.焦炭D的CSR为74.1,但较高的CSR主要是其低CRI造成的,用等溶损率后强度能够更好地评定焦炭抵抗溶损劣化的能力.焦炭A的溶损热处理后与等溶损率后强度相比,降低幅度达到了7.1%.研究证明,用CRI-PRTP评定焦炭热性质可行.
Based on the analysis of coke reactivity (CRI) and post-reaction strength (CSR) in simulating the thermal properties of coke in blast furnace, the CRI and post-reaction thermal properties (PRTP) and their detection methods are proposed. The indexes include the onset temperature , The dissolution rate, the iso-loss ratio, the post-reaction heat-treatability and the post-heat treatment strength.The experimental research and analysis on CRI, CSR and CRI-PRTP for seven blast furnace coke showed that the initial reaction temperatures of several coke Large difference, the maximum difference of 44 DEG C. The CSR of coke D is 74.1, but the higher CSR is mainly caused by its low CRI, and the ability of the coke to resist the deterioration of the solvent can be better evaluated with the equal post-loss ratio. Of the loss after heat treatment and iso-loss ratio compared to the strength of the reduction rate reached 7.1% .Research shows that CRI-PRTP assessment of coke thermal properties feasible.