FIELD: process engineering.
SUBSTANCE: proposed method consists in that granular loose material is compacted and/or cleaned of impurities by forcing pressurised medium in material layer prior to and/or during processing. Said forced medium can represent gas and/or fluid and/or mix thereof except for cleaning wherein fluid and/or gas-fluid mix is used as said forced medium. Composition of forced medium is varied during processing granular loose material. Said medium is forced into granular loose material in steady-state or pulsed conditions, pulsation being caused by fed medium pressure variation and/or by alternating medium feed and feed stoppage intervals. Said medium is fed under pressure that ensures quasi-liquefaction of granular loose material.
EFFECT: reduced friction between material grains that minimises complex spatial motion of said grains.
10 cl
Authors
Dates
2010-09-10—Published
2009-02-12—Filed