The expediency of applying the test methods for sinter and pellets to determine the mechanical strength of blast-furnace briquettes is considered. Based on numerical modeling, the behaviors of pellets and briquettes under shock and abrasive loads in a rotating drum, static compressive loads, and when dropped from a height are compared. It is shown that due to the fundamental difference in the physical and mechanical properties of agglomerated products, corrections are needed for adequate assessment of the mechanical strength by conventional methods. Numerical modeling reveals a significant difference in the maximum stresses in a pellet and a briquette in the charge, which justifies the decrease in the compressive strength rejection limits for briquettes. When testing briquettes in a drum, their behavior when dropped on a metal surface should be taken into account. The rejection limits for testing briquettes in a drum should be adjusted. It is substantiated that the drop strength test method is fundamentally important for assessing the strength of blast-furnace briquettes because it is the most appropriate to the way they are delivered to the blast furnace. For the first time, the need to test briquettes for strength when exposed to gas flow is indicated.

考虑了应用烧结矿和球团的测试方法来确定高炉煤球的机械强度的权宜之计。基于数值模拟，比较了球团和煤球在转鼓中的冲击和磨蚀载荷、静态压缩载荷以及从高处坠落时的行为。结果表明，由于团聚产品的物理和机械性能存在根本差异，因此需要进行修正以通过常规方法充分评估机械强度。数值模型显示，球团和煤球的最大应力存在显着差异，这证明了煤球的抗压强度拒绝限制降低是合理的。 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 在鼓中测试煤球时，应考虑它们掉落在金属表面时的行为。应调整桶中煤球测试的拒绝限值。事实证明，跌落强度测试方法对于评估高炉煤球的强度至关重要，因为它最适合将其运送到高炉的方式。首次表明需要测试煤球在气流中的强度。