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高炉内未燃碳的积聚是限制最高喷煤比的一个因素。未燃碳与渣、铁和气相互作用能对碳的吸收产生很大影响，该项工作研究了含渣的低级铁氧化物与含不同灰分（０．０５％～１２．２５％）的碳质的相互作用。在充满１５００℃高温氩气的管式炉内进行这些试验，并在现场研究渣、碳、煤气之间的相互作用。试验结果表明：碳质的不同灰含量及成分影响了它们被渣浸润程度，如果浸润性好，可以极大地减小熔化初期的接触角。具有好的浸润性的碳料可与渣相反应并促使渣的成分改变。当碳料与含有一定量铁氧化物的渣接触时，能产生碳耗，例如：从铁氧化物还原反应动力学可以显示喷煤过程中高炉内碳的消耗速度。在喷煤过程中，碳料中的灰分溶解到渣相中也能导致碳耗。这些研究课题目前正在悉尼市新南威尔士大学和材料及科学工程学院的黑煤利用共同研究中心进行。本文所述是该项研究的一部分。
The accumulation of unburned carbon in the blast furnace is a factor that limits the maximum PCI ratio. The interaction of unburned carbon with slag, iron and gas can have a significant effect on the absorption of carbon. This work studied the effect of low iron oxides with slag on carbonaceous matter with different ash contents (0.05% ~ 12.25%) Interaction. These tests were conducted in a tube furnace filled with high temperature argon at 1500 ° C and the interaction between slag, carbon, and gas was investigated in the field. The experimental results show that the different ash content and composition of carbonaceous matter affect their degree of infiltration by slag. If the wettability is good, the contact angle at the initial stage of melting can be greatly reduced. Carbon materials with good wetting properties can react with the slag and cause the composition of the slag to change. When the carbonaceous material is contacted with the slag containing a certain amount of iron oxide, carbonaceous material can be produced. For example, the kinetics of the reduction reaction of iron oxide can show the carbon consumption rate in the blast furnace during coal injection. In the coal injection process, the carbonaceous material dissolved in the ash phase can also lead to carbon loss. These research projects are currently being conducted at the University of New South Wales in Sydney and the Coal Research and Utilization Center for Materials and Science and Engineering. This article describes a part of the study.