Cinematics and volume deformations during roll-press briquetting

Analysis of the Temperature Distribution on the Surface of Saddle-Shaped Briquettes Consolidated in the Roller Press

“…For each type of the merged material, the temperature in the upper part of the briquette was the highest. The obtained temperature distributions coincide with the bulk material deformation in the forming cavity during briquetting process in asymmetrical compaction unit presented in the work [ 70 ]. From the analysis of both distributions, it can be concluded that higher local briquette temperatures in a given place correspond to better local density.…”

“…It also eliminates briquettes from cracking in half along the plane of mutual closure of cavities on both rolls [ 55 , 64 ]. The unit pressure in the fine-grained material consolidation process often reaches several hundred MPa and is a parameter which results, among other things, from the properties of the material being consolidated and the compaction system geometry [ 54 , 61 , 70 ]. Its value changes depending on the place on the molding surface [ 71 , 72 ].…”

“…Its value changes depending on the place on the molding surface [71,72]. This is one of the reasons that the briquette compaction is not uniform throughout its volume, as shown by the research presented in the works [70,73]. It was also proved in simulation studies using the Finite Element Method [74].…”

The Action Result of the Concentrated Load on the Briquettes which Obtained from the Technogenous Material

“…Against the background of a more productive roll briquetting process, the plunger pressing differs in that it is not possible to fulfill the capture conditions characterized the roll briquetting [7,8]. To simulate the capture of the briquette material, the finite element method implemented in the ABAQUS program module is applied.…”

Briquette compacting in container with a small taper angle

“…Roll briquetting of granular media is the most productive treatment process [4,5,6]; however, sometimes the obtained briquettes are not large enough, this being caused by specific conditions of gripping by roller systems. The production of large briquettes makes one to use plunger briquetting.…”