Content deleted Content added
No edit summary |
m Reverted edits by 2001:1715:9D9C:6500:687B:B20B:9192:25F8 (talk) (AV) |
||
(32 intermediate revisions by 24 users not shown) | |||
Line 1:
{{short description|Mixture of solids
{{jargon|date=September 2022}}
{{for|the geographical place|Slurry, North West}}
[[Image:High angle.jpg|right|thumb|A slurry composed of glass beads in [[silicone oil]] flowing down an inclined plane]]
[[File:Potato starch slurry.jpg|thumb|[[Potato starch]] slurry]]
A '''slurry''' is a mixture of
The particles may settle below a certain transport velocity and the mixture can behave
▲A '''slurry''' is a mixture of solids denser than water suspended in liquid, usually water. The most common use of slurry is as a means of transporting solids, the liquid being a carrier that is pumped on a device such as a [[centrifugal pump]]. The size of solid particles may vary from 1 micron up to hundreds of millimeters.
▲The particles may settle below a certain transport velocity and the mixture can behave as a [[Newtonian fluid|Newtonian]] or [[Non-Newtonian fluid|non-Newtonian]] fluid. Depending on the mixture, the slurry may be abrasive and/or corrosive.
==Examples==
Examples of slurries include:
*
*
*
*
*
*
*[[Slip (ceramics)|Slip]], a mixture of [[clay]] and water used for joining, glazing and decoration of ceramics and pottery.
*[[Slurry oil]], the highest boiling fraction distilled from the effluent of an [[FCC unit]] in an [[oil refinery]]. It contains a large amount of catalyst, in form of sediments hence the denomination of slurry. *
*
*
*
*
*
*
*
▲* A [[Bolus (digestion)|bolus]] of chewed food mixed with [[saliva]]<ref>[http://www.rheonova.fr/en/fodd-industry Rheonova : Measuring food bolus properties] {{webarchive|url=https://archive.is/20131130092240/http://www.rheonova.fr/en/fodd-industry |date=2013-11-30 }}</ref>
▲* A mixture of epoxy glue and [[glass microsphere]]s used as a filler compound around core materials in [[sandwich-structured composite]] airframes.
==Calculations==
Line 34 ⟶ 33:
where
:<math>\phi_{sl}</math> is the solids fraction of the slurry (state by mass)
:<math>\rho_{s}</math>
:<math>\rho_{sl}</math>
:<math>\rho_{l}</math>
In aqueous slurries, as is common in mineral processing, the specific gravity of the species is typically used, and since
:<math>\phi_{sl}=\frac{\rho_{s}(\rho_{sl} - 1)}{\rho_{sl}(\rho_{s} - 1)}</math>
even though specific gravity with units tonnes/m
===Liquid mass from mass fraction of solids===
Line 78 ⟶ 77:
we conclude that
:<math>\phi_{sl,v}=\frac{1}{1+SG_{s}(\frac{1}{\phi_{sl,m}}-1)}</math>
where
:<math>\phi_{sl,v}</math> is the solids fraction of the slurry on a ''volumetric'' basis
Line 88 ⟶ 86:
==See also==
*
*
*
*
==References==
Line 99 ⟶ 97:
{{commons category|Slurry}}
{{wiktionary|slurry}}
*
*
*
{{Authority control}}
Line 107 ⟶ 105:
[[Category:Environmental engineering]]
[[Category:Materials]]
[[Category:Fluid mechanics]]
|