Hurricane cyclone designed for product recovery on a GEA Niro SD Micro spray dryer, processing 39 m3/h at 165ºC.
The expected collection efficiency for this extremely fine and low dusting powder (median particle size of 1.7 ?m) is expected to reach around 73.49%.
Expected efficiency: 70-73.5%
Hurricane system for recovery of dried powder milk from the flue gases of a drying tower operating at 31,100 m3/h at 75 ºC.
Hurricane system designed for fat powder recovery with a flowrate of 3 900m3/h at 5ºC, 1.8 kPa in a food industry.
Hurricane system designed for increasing fat powder recovery with a flow rate of 4,875m3/h at - 5,5 ºC, 180mm w. g..
Hurricane system aiming to increase the recovery of milk proteins powder after a spray dryer. It has a capacity of 92 000m3/h at 65ºC effective flow rate.
Hurricane system designed for product recovery of food ingredient on an air stream from a spray dryer with a 57 878 m3/h at 75ºC flow rate.
Hurricane HR cyclones to reduce particulate matter (pm) emissions under 75mg/Nm3 from a drying tower of powder milk at Nestlé ( 31 100 m3/h at 80ºC )
Hurricane geometries maximize powder collection for each different application, while minimizing reentrainment and keeping pressure drop at reasonable levels.
These high efficiency cyclones are the output of nonconvex nonlinear problems formulated and solved after years of work in partnership with the Faculty of Engineering of Porto.
A single Hurricane is more efficient than any other known cyclone available in the market for the same pressure drop, usually resulting in less than half of the emissions of other high efficiency cyclones available.
Very high efficiencies: under 20 % of the emissions of other high efficiency cyclones.
Custom geometry for each case (single or parallel arrangement)
Low pressure drop: < 100 mm w. g.
Direct product discharge avoiding product degradation and cross contamination
Flanged connection for easier installation
Inspection doors for cleaning
"2B" or Ra < 0.4 µm smooth surface finishing when needed
Materials of construction in Stainless Steel 304L or 316L
Absence of condensation with heat tracing systems
Clean in Place (CIP) cleaning systems
Very low maintenance and downtime costs
Spray Drying | General Arrangement
Usual spray drying arrangements (single point, two point and closed cycle) include a high efficiency cyclone and a bag filter.
The cyclone serves the purpose of separating and collecting the dried powder originated in the spray-drying chamber. In pharmaceutical/API powders, the fraction of product escaping to the bag filter is not considered as first grade product, and thus seen as losses. The main reasons for this are contamination with filter fibers, product cross contamination and risk of heat degradation.
For fine powders with a median diameter in volume (MVD) of less than 5 µm, losses due to low cyclone efficiency can rise to more than 25 %.
Fluid Bed Drying | General Arrangement
In fluidized bed arrangements, cyclones are used to recover the fine fraction of the dried powder, collecting or returning it to the bed.
This fraction frequently has a very small particle size distribution which results in low yields in the cyclone.
Improving the efficiency is crucial both to recover first grade product and to reduce filter bag cleaning and frequent change of bags.
Client needs include a cyclone system efficient enough in order to replace the bag filter and comply with regulatory emission limits.