Using proven standard components, Aeromatic-Fielder can supply both simplicity and flexibility in plant design. User-selected process modules, filters, control systems and air preparation units combine in a system to meet process requirements exactly. This modular approach ensures that qualification and validation procedures are kept to a minimum.
Through-the-wall installation By positioning the support column at the back of the fluid bed, a through-the-wall installation is achieved which ensures that all the auxiliary equipment is housed outside the process room. This greatly simplifies compliance with GMP guidelines.
Solvent emission control
A range of open- and closed-cycle systems for removing or recovering organic solvents is available. Options include condensation, adsorption, thermal oxidation and wet scrubbing.
Spraying systems
Nozzles, pumps and liquid preparation units are supplied according to process needs.
Product discharge
For automatic product discharge, pneumatic conveying or gravity-based systems are available for use with the Non-Sifting Gill Plate™ air distributor technology.
Inlet air preparation unit
Inlet air is treated using a series of filters and conditioning units according to the sensitivity of the process and the ambient climatic conditions. Options range from the basic minimum, consisting of a pre-filter, heater and final filter, to full air-conditioning to provide consistent processing conditions all year round. Condensers are used for dehumidifying in most applications, but for hygroscopic or effervescent products which require a very low dew point, additional adsorption devices can be installed. Humidification is achieved by an injection of steam.
Process filters In granulation, drying, and most pelletizing applications, a process filter is used to trap small particles, which are returned to the bed when the filter is cleaned. In coating applications, fine particles usually need to be removed. Fluid beds that are used for more than one type of process can be supplied with interchangeable process filters.
1 - Single shaker bag filter A simple, basic filter with a single bag, which is cleaned by shaking. Fluidization stops during filter cleaning.
2 - Multi shaker bag filter This filter is divided into two or more sections, with a separate filter bag in each one. Bags are cleaned individually by shaking the filter, while fluidization continues in the other sections, for faster and more efficient production.
3 - Blow-back filter There are multiple filter bag sections in this design. Cleaning takes place one bag at a time, so that a large proportion of the filter is always available for continuous fluidization.
4 - Cartridge filter
Stainless steel filter cartridges are cleaned one at a time, so that a large proportion of the filter is always available for continuous fluidization. Unlike bag filters, this system can be cleaned-in-place.
5 - Particle retainer
Used for coating applications, this design retains the coarser particles and returns them to the process, removing the dust to an external filter unit.