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a device for separating lumps from powdered material, straining liquids, grading particles, etc., consisting of a container with a mesh or perforated bottom through which the material is shaken or poured



a device for separating dry loose materials by grain size. A distinction is made between flat sieves, which use vibration or a rocking motion, and drum sieves, which rotate. Sieves are principally used in the concentration of useful minerals and in the processing of grain for food and feed products in flour mills, mixed-feed plants, and hulling mills.


A meshed or perforated device or sheet through which dry loose material is refined, liquid is strained, and soft solids are comminuted.
A meshed sheet with apertures of uniform size used for sizing granular materials.


1. Any construction whose essential function is merely to separate, protect, seclude, or conceal, but not to support.
2. A covered framework, either fixed or movable, that serves as a protection against sun, fire, wind, rain, cold, or insects.
3. A metallic plate or sheet, a woven wire cloth, or other similar device, with regularly spaced apertures of uniform size, mounted in a suitable frame or holder for use in separating material according to size; also called a sieve.
References in periodicals archive ?
Well known for its iconic Alpine Air Jet Sieve for laboratory sieving and particle size measuring of fine powders, Hosokawa Micron has now introduced the Viblette[TM] VBL for fast, accurate wet sieving in the laboratory.
Activated sieves were dispersed in dimethylacetamide with the help of an ultrasonic horn.
Continuous control can be used to either push ethanol capacity to its limit through control at higher distillation purity and maximum sieve capacity, or to push specific energy to its minimum through more efficient distillation and sieve operation.
A range of accessories are available including a high performance vacuum cleaner for reliable cleaning of the working air; a small filter for active dedusting of the process air; a high-precision laboratory balance; an ultrasonic test sieve cleaning unit and a high performance cyclone for reliable and clean recovery of fines.
Mounted on a unique rubber suspension system, the Russell Compact Sieve offers considerable benefits over conventional spring mounted systems.
the goal:a thin film with the structural advantages of molecular sieves -- rigidity, high surface areas and thermal stability to 400[degrees] or 500[degrees] C -- but with tailored, nearly uniform pores.
Molecular sieves are now used in everything from crude oil conversion into gasoline to nuclear waste clean-up.
The QA Tru-Balance Gravity Flow sifters can be opened, sieves completely removed and maintained and reassembled in minutes, all without special tools.
Because the weight percentage of agglomerates is maximum in the 50-140 sieve range, the greatest percentage of the total percent MB present is on these sieves.
Their labyrinthine interiors could potentially serve a cozy sites for catalyzing chemical reactions or as minuscule sieves penetrable only by molecules of certain shapes and sizes.
Until now, molecular sieves were only available with standard pore sizes.
Tyler now performs examinations to certify that Test Sieves conform to the new ASTM E 11 Standard for Inspection and Calibration Grades.