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Title: Precision gap particle separator

Abstract

A system for separating particles entrained in a fluid includes a base with a first channel and a second channel. A precision gap connects the first channel and the second channel. The precision gap is of a size that allows small particles to pass from the first channel into the second channel and prevents large particles from the first channel into the second channel. A cover is positioned over the base unit, the first channel, the precision gap, and the second channel. An port directs the fluid containing the entrained particles into the first channel. An output port directs the large particles out of the first channel. A port connected to the second channel directs the small particles out of the second channel.

Inventors:
; ; ;
Publication Date:
Research Org.:
The Regents of the University of California, Oakland, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174884
Patent Number(s):
6,746,503
Application Number:
10/355,785
Assignee:
University Of California, The Regents Of OSTI
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Benett, William J., Miles, Robin, Jones, II., Leslie M., and Stockton, Cheryl. Precision gap particle separator. United States: N. p., 2004. Web.
Benett, William J., Miles, Robin, Jones, II., Leslie M., & Stockton, Cheryl. Precision gap particle separator. United States.
Benett, William J., Miles, Robin, Jones, II., Leslie M., and Stockton, Cheryl. 2004. "Precision gap particle separator". United States. doi:. https://www.osti.gov/servlets/purl/1174884.
@article{osti_1174884,
title = {Precision gap particle separator},
author = {Benett, William J. and Miles, Robin and Jones, II., Leslie M. and Stockton, Cheryl},
abstractNote = {A system for separating particles entrained in a fluid includes a base with a first channel and a second channel. A precision gap connects the first channel and the second channel. The precision gap is of a size that allows small particles to pass from the first channel into the second channel and prevents large particles from the first channel into the second channel. A cover is positioned over the base unit, the first channel, the precision gap, and the second channel. An port directs the fluid containing the entrained particles into the first channel. An output port directs the large particles out of the first channel. A port connected to the second channel directs the small particles out of the second channel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2004,
month = 6
}

Patent:

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  • A cyclone type particle separator comprising a lower cone with a particle outlet, an intermediate cylinder and an upper truncated cone. An inlet is opened at the intermediate cylinder tangentially or involutedly thereof and adjacent to the upper end of the lower cone so that the particle-laden gas can freely spiral upward in the intermediate cylinder and the upper truncated cone while the particles separated drop into the lower cone. The top wall of the upper truncated cone is spaced apart from the inlet by a suitable distance, and upper particle trapping chambers are extended tangentially and outwardly from themore » upper truncated cone and is contiguous with the top wall so that the particles separated in the upper truncated cone adjacent to the top wall thereof can be trapped and collected in the upper trapping chambers.« less
  • Method and apparatus are described for separating and classifying particles by dispersing the particles within a fluid that is upwardly flowing within a cone-shaped pipe that has its large end above its small end. Particles of similar size and shape migrate to individual levels within the flowing fluid. As the fluid is deflected by a plate at the top end of the pipe, the smallest particles are collected on a shelf-like flange. Ever larger particles are collected as the flow rate of the fluid is increased. To prevent particle sticking on the walls of the pipe, additional fluid is causedmore » to flow into the pipe through holes that are specifically provided for that purpose. Stocking is further prevented by high frequency vibrators that are positioned on the apparatus.« less
  • Method and apparatus (10) are provided for separating and classifying particles (48,50,56) by dispersing the particles within a fluid (52) that is upwardly flowing within a cone-shaped pipe (12) that has its large end (20) above its small end (18). Particles of similar size and shape (48,50) migrate to individual levels (A,B) within the flowing fluid. As the fluid is deflected by a plate (42) at the top end of the pipe (12), the smallest particles are collected on a shelf-like flange (40). Ever larger particles are collected as the flow rate of the fluid is increased. To prevent particlemore » sticking on the walls (14) of the pipe (12), additional fluid is caused to flow into the pipe (12) through holes (68) that are specifically provided for that purpose. Sticking is further prevented by high frequency vibrators (70) that are positioned on the apparatus (10).« less
  • IN the disclosed neutral-particle molecular-beam or atomicbeam separator, velocity analyzer or synchrotron, it is proposed to use the saturated value of radiation pressure on the particles, illustratively neutral particles, to deflect them in semicircular paths or in circular orbits. A light field at a resonance radiation frequency for the particles is created that converges radially in a horizontal plane throughout the desired portion or arc of a circle with intensity sufficient to exceed the saturated value and thus create a constant central force field. The field of use includes studying the interaction of atoms with high-intensity monochromatic light, and alsomore » includes separating, velocity analyzing or trapping neutral atoms having a specific hyperfine level or belonging to a specific isotopic species, such as those useful for nuclear power generation. (Official Gazette)« less