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PSL - SimpleFilter™ - Nutsche Filter Dryer System
The SimpleFilter is a cost-effective and user-friendly solution allowing efficient Nutsche filtration and drying of small and pilot scale batches. It is a compact and mobile system that can be easily moved throughout different production areas within the same facility.
Solid Liquid Separation has never been Simpler
The SimpleFilter™ was developed to overcome well-known production challenges faced by manufacturers when using traditional production methods such as Büchner filtration and oven tray-drying. It is the ideal technology to successfully complete scale-up and scale-down activities and obtain predictive performance results.
The SimpleFilter™ consists of a single plate pressure & vacuum filter-dryer vessel equipped with a glove-bag containment system allowing simple and effective product discharge under nitrogen purge. Its vessel is available in different materials hence suiting a broad range of chemical processes.
A filter dryer combines two processing steps within a single piece of equipment. Firstly, solid-liquid separation is carried out, also known as filtration. The second step often consists of washing the product for removing impurities and/or solvent traces. The final step is to dry the collected solids.
In the majority of cases the solid is the product of interest but filter dryer technology can also be used in processes where the filtrate (liquid) is the valuable product. It is also possible to retain both the solid and the filtrate, if required.
- A fully sealed vessel which can be pressurised or put under vacuum.
- A bi-directional agitator within the vessel with a height-adjustable blade to account for variable product cake thicknesses.
- A filtering element at the base of the vessel, usually mesh.
- Temperature controlled zones including heated jackets and in some cases a heated agitator.
The Agitator within Nutsche Filter Dryers provides superior performance over traditional methods such as Buchner Filtration and Tray Dryers by offering the following features.
- Preventing heavy build-up on the filtration screen by keeping the product in motion in order to keep a rapid filtration rate.
- Maintaining efficient pressure filtration by smoothing the top surface of the wet cake.
- Providing homogenous drying throughout the batch by gently mixing (ploughing) powder.
As an early pioneer of containment technology, PSL enhances its filtration and drying solutions with unique high-containment systems.
Many industrial filtration and drying processes require integrated containment technology in order to protect operators from highly toxic compounds and/or to protect sensitive products from the production environment. PSL containment systems can be integrated to allow end-users to complete a large range of process operations such as product sampling and product discharge while protecting the product integrity and maximising product yield.
PSL offer a range of containment solutions for integration with our filter dryers. Selection is based on the containment performance requirement and/or organisational preference for either rigid containment or flexible/disposable solutions.
ANFD are a mainstay in fine chemical and pharmaceutical manufacturing. Find out why with this brief overview of ANFD technology.
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Slurry filtration
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Product washing
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Re-slurry (optional agitator recommended)
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Vacuum drying
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Product sampling
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Product discharge
The SimpleFilter™ is a GMP piece of equipment ideal for multi-product applications. It is designed to allow end-users to remain agile and to quickly adapt to changing production requirements.
FILTRATION AGILITY
- One modular base design
- Quick filtration media change-over
- Suitable for cloth & metallic mesh
DRYING AGILITY
- Direct heat transfer with base
- Vertical side wall heating jacket
- Agitator option for drying uniformity
CLEANING AGILITY
- GMP design / reduced product traps
- Suitable for Reflux cleaning
- CiP spray-ring option
Maximising Your Product Recovery
Upon batch completion inside the SimpleFilter™, your product can be easily collected by manually raking your batch from the vessel side-discharge into the glove-bag. If the agitator upgrade is purchased, the batch discharge process can be automated, with the final product heel removal only remaining manual.
Predictive Scale-Up, Delivered
Being one of the early pioneers of containment technology, PSL has made all of its SimpleFilter™ models compatible with contained discharge technology.
The unique PSL glove-bag containment system was developed to allow end-users to perform safe product sampling and discharge within a nitrogen purge atmosphere for additional process safety and product integrity assurance.
Each flexible glove-bag is equipped with a 2-glove arrangement to enhance ergonomics and maximise product recovery by allowing product heel-removal. A tri-clamp connection is also provided to connect the glove-bag to the chosen discharge container (via continuous liner system, split-butterfly valve, etc.)
