Aeration Plate

The individual wire cloth layers are bonded together by means of a special manufacturing process.
It is a sheet metal like medium for fluidization and filtration applications. These laminated panels can be made up of woven wire cloth layers with square openings or filter cloth specifications or a combination of both types. They have a defined pore size ranging from 5 to 500 micrometers. The geometry of the pores is uniform, and unlike powdered metal products, there are no blind holes. The surface is smooth, with flattered knuckles on the outer wire cloth layers.

The physical characteristics of the individual types as far as their pore size and flow capacity are concerned, can be pre-determined. Types can also be supplied in panels and shaped parts in ready to be installed components such as candles, cylinders, cones and aeration parts.
The standard size is 500 x 1000 mm. Special sizes upon request.

Application
The aeration pads are a highly efficient discharging aid in silos, in air conveying troughs, especially in the high temperature field. They are a proven separating element between air and the material to be conveyed. Other applications are:
flow regulator in water pipes, drinking water filtration, sound attenuation for air outlets, filter inserts for air aspirating holes, water separators for duel, hydraulic filtration especially for aviation and aerospace.

Physical Data
Material: chromium nickel steel 1.4301, AISI 304
Maximal service temperature 600° C.
Porosity according to specification 20 % to 40 %.

Aeration pads are used to fluidize and to optimize the flow rate of powdered and pulverized products in silos and in bunkers. Pulverized goods stored in silos have to be easily extracted for further processes.
Often, however, the powdered naterial tends to density during the storage and becomes solid.
Therefore it is no longer possible to rely on gravity alone for extraction. To ensure the flow, aeration pads are used with success. Aeration pads and candles can easily be installed, even in silos already in operation.

By installation aeration pads it is possible to avoid problems, such as funneling, ratholing and bridging formation.

Function
The aeration pad is installed internally in the cone of, for example, a silo. Air is continuously or intermittently blown through into pulverised substance. The air requirement for a silo depends on the chosen type and the number of aeration pads.
As a standard value we recommend 40 - 60 m³ of air per hour at a pressure of 500 mbar.

Configuration

Aeration pads are temperature and corrosion resistant. The standard dimension is 100 x 200 mm, other shapes and sizes upon request.
Egla-Screen: stainless steel screen with a smooth surface on one side as distribution backing support.
Deflector Plate: required to deflect the compressed air.
Base Plate: stainless steel, 2 mm thick.
Pipe Union: steel, galvanized inside. Can also be supllied in stainless steel at a surcharge.

Example: maintenance unit

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