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Comparison of iron ore reduction in experimental blast furnace and laboratory scale simulation of blast furnace process

机译：实验高炉中铁矿石还原的比较和高炉过程的实验室规模模拟

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The reduction of iron ore pellets in an experimental blast furnace has been surveyed by dissection of the blast furnace. Results of the dissection, as well as some results of measurements taken in the blast furnace interior during operation, have been compared with those of previously conducted laboratory reduction, softening and melting tests using the same type of pellets. The aim of the work was to compare laboratory testing with results from an experimental blast furnace. The high temperature phenomena occurring when reducing olivine iron ore pellets, with limited softening and a short temperature range of the melting process resulting in a thin cohesive zone, were found to be the same in laboratory tests and in the experimental blast furnace. The reduction process down through the burden of the experimental blast furnace, however, was not identical to that in the reduction, softening and melting experiments. The differences obtained were found to arise from different reducing conditions. Therefore, it was concluded that simulation of the reduction occurring in the blast furnace can be conducteded on a laboratory scale, provided that the experimental conditions are carefully chosen for the specific blast furnace process to be simulated. Information about the internal state of the blast furnace can be obtained from the experimental blast furnace.
机译：实验高炉中铁矿石球团的减少已通过高炉的解剖进行了调查。解剖的结果以及在操作过程中在高炉内部进行的一些测量结果已与以前使用相同类型球团进行的实验室还原，软化和熔融测试的结果进行了比较。这项工作的目的是将实验室测试与实验性高炉的结果进行比较。在实验室测试和实验高炉中发现，还原橄榄铁矿石球团时发生的高温现象具有有限的软化作用，并且熔化过程的温度范围短，导致粘结区域较薄。然而，通过实验高炉的负担进行的还原过程与还原，软化和熔融实验中的还原过程并不相同。发现获得的差异是由于不同的还原条件引起的。因此，可以得出结论，只要精心选择了要模拟的特定高炉工艺的实验条件，就可以在实验室规模上进行高炉中还原反应的模拟。高炉内部状态的信息可以从实验高炉获得。

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