Powder scattering is probably one of the more difficult field in the world of powder dosing and distribution. This is due the difficulty to achieve at least 3 operating characteristics:
Machine direction profil ( long and short term stabilility of output flow).
Cross direction profil (getting the same flow rate in any point of the distribution width).
Distribution of the ingredient on the product (free of appearance defects).
Our solutions are dedicated to each application including the type of ingredient (fine to coarse powders, granulates fragile or not, risk of sedimentation...), range of flow rate, industrial environment (heavy industry, hygienic demands...).
Our experience is supported by our pilot station. It help us to propose a professional approach for all new projects (feasbility studies, check of performances...).
We presente here the main features of our powder scatters, and some typical results.
Performances / technical data
Operation
: Continuous or batch modes.
Setting of flow rate
: Opening of the outlet gates + frequency inverter (output flow rate variation in the range of 1 to 100)
Respect of the ingredient
: The particle size distributionis respected, the sensitive ingredients are not damaged.
Max width
: Up to 2.0 m.
Manufacturing
: Hygienic as option.
Lay out
: Can be proposed on a movable "C" shape trolley.
General arrangement for food industry
Scattering machine, width : 600 mm, mounted on a mobile "C" shape trolley. Designed for sprinkling of starch in food industry.
Hygienic powder scatter mounted on a "C" shape trolley.
The final results is a result of design and construction details.
Results - Performance
The performances of a powder scatter are usually valued according to two criteria: Quality of distribution and stability of the output flow (stability over time and across the width of distribution). These characteristics can be evaluated during tests in our pilot plant.
The stability of distribution can be estimated by visual analysis (photos showing powder distributed witha Fine dosing powder scatter on a self adhesive support).
Stability of output flow rate can be evaluated with a balance.
Powdering machine, width: 700 mm.
This curve show the stability of the output flow: the machine deliver a constant flow, a balance measure the flow of powder during one second, every 30 s.
Ingredient: fine salt
Sprikling of granules (4 x 4 mm), width of the machine: 400 mm.
This curve show the stability of the output flow: the machine deliver a constant flow, a balance measure the flow of powder during one second, at a frequency of one measure per second.
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