Solids and Slurries Definition of Terms（固体和泥浆的定义条款）.pdfVIP

Solids and Slurries - Definition of Terms APPARENT VISCOSITY The viscosity of a non-Newtonian slurry at a particular rate of shear, expressed in terms applicable to Newtonian fluids. CRITICAL CARRYING VELOCITY The mean velocity of the specific slurry in a particular conduit, above which the solids phase remains in suspension, and below which solid-liquid separation occurs. EFFECTIVE PARTICLE DIAMETER The single or average particle size used to represent the behavior of a mixture of various sizes of particles in a slurry. This designation is used to calculate system requirements and pump performance. FRICTION CHARACTERISTIC A term used to describe the resistance to flow which is exhibited by solid-liquid mixtures at various rates of flow. HETEROGENEOUS MIXTURE A mixture of solids and a liquid in which the solids are net uniformly distributed. HOMOGENEOUS FLOW (FULLY SUSPENDEID SOLIDS) A type of slurry flow in which the solids are thoroughly mixed in the flowing stream and a negligible amount of the solids are ~iding along the conduit wall. HOMOGENEOUS MIXTURE A mixture of solids and a liquid in which the solids are uniformly distributed. NON-HOMOGENEOUS FLOW (PARTIALLY SUSPENDED SOUDS) A type of slurry flow in which the solids are stratified, with a portion of the solids sliding along the conduit wall. Sometimes called heterogeneous flow or flow with partially suspended solids. NON-SETTUNG SLURRY A slurry In which the solids will not settle to the bottom of the containing vessel or conduit, but will remain in suspension, without agitation, for long periods of time. PERCENT SOLIDS BY VOLUME The actual volume of the solid material in a given volume of slurry, divided by the given volume of slurry, multiplied by 100. PERCENT SOLIDS BY WEIGHT The weight of dry solids in a given volume of slurry, divided by the total weight of that volume of slurry, multiplied by 100. SALTATON A condition which exists in a m