The disintegration of agglomerates of solid charge used in a nickel flash furnace has been investigated. The in-flight agglomerate size of solid charge with different characteristics has been measured using turbulent conditions similar to a full-scale flash furnace. Plant observations indicated that under certain conditions solid charge was able to pass through the furnace shaft unreacted. The motivation for this work was to improve the understanding and the modelling of a flash furnace. A review of the literature revealed that the disintegration of agglomerates of solid charge is very important to the performance of a flash furnace, however, there has been no detailed study of the factors governing the disintegration of in-flight agglomerates of solid charge.A laboratory-scale experimental rig was constructed to non-intrusively measure the in-flight agglomerate size distribution of solid charge and to visualise the powder injection process, while using turbulent conditions similar to a flash furnace. A high-speed video technique and a laser diffraction technique were used to measure the wide range of in-flight agglomerate sizes present during powder injection. A range of variables including the particle size, turbulence level, packing density, particle shape, solid concentration, and moisture content were investigated.
| Identifer | oai:union.ndltd.org:ADTP/189058 |
| Creators | Debrincat, David Paul |
| Source Sets | Australiasian Digital Theses Program |
| Detected Language | English |
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