Hardening Behaviour of Pellets Prepared from a Novel Combination of Rare Multimetallic Magnetite Ore and Binder

Crushing mechanism analysis of sintered ore and study of particle size distribution pattern after crushing

“…From Figure 17, it can be observed that there are significant differences in the volume distribution of the crushed sintered ore at different rotation speeds. The majority of sintered ore fragments have volumes ranging from 1 to 100 mm, 3 with the highest proportion falling within the 1-10 mm 3 range, accounting for ∼60%. As the rotation speed increases, the volume of the sintered ore fragments decreases significantly, and the particle size distribution of the crushed sintered ore becomes narrower and more uniform.…”

“…In China, sintered ore constitutes as much as 75% of the blast furnace fuel, making sintering technology the second-largest consumer in the entire steel production, with solid fuel consumption accounting for about 70% to 80%. 1,2 In the production of sintered ore, the crushing process is a key step, 3,4 used to break down the raw ore from large chunks into the required particle sizes. Single-roll crushers, as one of the common equipment for sintered ore crushing, play a crucial role in this crushing process, directly affecting the particle size distribution and production efficiency of sintered ore. 5 However, existing crushing processes face challenges of uneven particle distribution, and there is limited understanding of the crushing mechanism of sintered ore under the action of the single-roll crusher.…”