Two-phase flow with high concentration of solids as a result of the mechanical action of impact grinding grid (for example beater-wheel mill)
- Technical Univ., Sofia (Bulgaria)
A special case of two-phase flow has been investigated, which has not been studied theoretically as well in the practice until now. This special case of two-phase flow takes place at the entrance of the beater-wheel in the fan mills for lignite in the form of a mechanically created fluidized bed with high concentration of solids. The created hydraulic resistance by this bed is at the same time an internal one for the mill, which acts as a fan too. The interaction of the solids and the continuity medium is described by means of quantity motion equations. For verification of the analytical model, tests have been carried out on a laboratory mill. The results have shown that it is possible to derive a criterion equation similar to that for the fluidized bed.
- OSTI ID:
- 257079
- Report Number(s):
- CONF-950952-; TRN: IM9631%%285
- Resource Relation:
- Conference: 12. annual international Pittsburgh coal conference, Pittsburgh, PA (United States), 11-15 Sep 1995; Other Information: PBD: 1995; Related Information: Is Part Of Twelfth annual international Pittsburgh coal conference: Proceedings. Coal -- Energy and the environment; PB: 1248 p.
- Country of Publication:
- United States
- Language:
- English
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