Dust Generator SAG 4100 pages

Solid Aerosol Generator
SAG 410

Applications
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Flow visualisation

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Poor-flow test dusts and smallest feed rates
A new generation of dust disperser has been
developed for substances, which are difficult to
handle because of their poor-flow properties, such
as titanium dioxide, aluminium oxide and soot.
The innovative principle consists of loading the
dust on a dosing ring from which it is drawn off by
the dispersing nozzle.
This enables reliable feed rates and dispersing of
cohesive materials as well as delivery of very small
quantities of powder at low dosing rates.

Optimization of combustion processes

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Solid aerosols are used in a variety of applications,
aerosol and powder science, industrial processes
and quality assurance tasks.
The technique for the dispersion of dry dust and
powders comprises two steps, the continuous
supply of material to the disperser and the
dispersal of the material as an aerosol.
A proven method for metering powder to the
disperser is to use a moving toothed belt. The well
defined spaces between the teeth ensure a
constant and reproducible supply of powder, even
at low feed rates. The particle concentration of the
output aerosol can easily be adjusted over a wide
range by changing the speed of the feed belt.
The powder is removed from the belt by an ejector
nozzle with ceramic outlet tube.
A specially designed scraper ensures even filling of
the belt spaces and minimises the influence of the
powder level in the reservoir on aerosol mass flow.

Basic aerosol research

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Series SAG 410:
Solid Aerosol Generator SAG 410 (standard version)

Filter testing: dust loading and fractional
efficiency testing with one instrument (wide
dosing range)

Analysis of mixing and coating processes (e.g.
in engineering ceramics)

Main Advantages
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Constant dosing of various sorts of test dusts

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Continuous dosing with high accuracy and over
long operational periods nearly independent of
the powder level in the reservoir

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Dispersion at small scale dosing rates

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Reliable generation of dust aerosols from poorflow powders (test dusts)

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Interchangeable dispersing units allow a single
instrument to cover several dosing ranges
(from mg/h to kg/h)

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Easy device control and operation

Series SAG 410: Solid Aerosol Generator SAG 410/U
for small scale dosing rates