The Unite Agitated Nutsche Filter Dryer is a new-generation solid-liquid separation process equipment developed from advanced filtration technology. It integrates filtration, washing, and drying processes within a single fully enclosed vessel, maximizing equipment utilization and process efficiency.
The enclosed design prevents environmental contamination and material pollution, reduces material transfer losses, and minimizes solvent consumption. It is especially suitable for intermittent batch production processes requiring high cleanliness, safety, and efficient operation.
The side discharge valve uses a metal-to-metal hard seal or an FEPsealing ring soft seal;
To ensure the sealing performance of the side discharge valve, it is equipped with an automatic or manual sealing surface cleaning device;
Two, three, or four mixing impellers can be installed to improve mixing and drying efficiency and discharge speed;
It can be used in combination with airflow drying to improve drying efficiency;
Quick-opening automatic locking device or C-ring bolt secures the main flange;
The filter medium is a multi-layer sintered metal mesh, single-layer metal or non-metallic filter cloth;
Double-end face or non-contact mechanical seals are suitable for chemical or sterile processes; Complete CIP and SIP system;
Manual or fully automatic residual material discharge device;
Complies with CGMP and FDA standards.
Each Unite three-in-one filter consists of four main components: the vessel, stirring mechanism assembly, filter base plate, and side discharge port. The vessel is the main body of the equipment, with a mounting frame installed on the top to support the stirring mechanism assembly.
The stirring mechanism is connected to the vessel through a mechanical seal. A vertical shaft drives the horizontal blades installed at the bottom, and the system is powered by a motor with bidirectional rotation capability. In addition, the stirring assembly can move vertically through a hydraulic cylinder.
The stirring system performs multiple functions, including filter cake leveling, slurry resuspension, and filter cake discharge. The base plate supports the filter screen and filter plate, while the side discharge port adopts a sealed plunger design, allowing manual or automatic operation.
The three-in-one filter, washer, and dryer uses external pressure duringthe filtration process to force the solid-liquid mixture downwardsthrough the filter plate.
The solid phase is intercepted on the filter plate,forming a filter cake layer, achieving higher precision and better filtrationresults.
The thick cake accumulating in the filter may crack, affectingfiltration. A motor-driven rotating agitator continuously smooths thefilter cake and maintains its even distribution, while a hydraulicallydriven actuator moves the agitator vertically to follow the cake buildup.
After the filtration process is complete, the filter cake can be washed andrepulped using the agitator to achieve higher cake purity. Thethree-in-one system offers the flexibility of vacuum and/or hot air dryingto achieve the correct filter cake consistency. After the filter cake is dried,the side discharge valve opens. The agitator rotates in reverse, pushingthe filter cake out through the open discharge valve.
| Model | Filtration Area (m2) | Shell Diameter (mm) | Work Pressure (Mpa) | Nominal Volume (m3) | Filter Cake Height (mm) |
|---|---|---|---|---|---|
| MFCD - 600 | 0.28 | 600 |
-0.1~03 (likely a typo,
should be a pressure range
like 0 - 0.3 etc., here kept as presented)
|
0.2 | 150 |
| MFCD - 800 | 0.5 | 800 | 0.5 | 180 | |
| MFCD - 1000 | 0.75 | 1000 | 0.75 | 250 | |
| MFCD - 1200 | 1.1 | 1200 | 1.3 | 250 | |
| MFCD - 1400 | 1.5 | 1400 | 1.8 | 300 | |
| MFCD - 1600 | 2 | 1600 | 2.8 | 350 | |
| MFCD - 1800 | 2.5 | 1800 | 4 | 350 | |
| MFCD - 2000 | 3.1 | 2000 | 4.8 | 400 | |
| MFCD - 2200 | 3.5 | 2200 | 5.5 | 400 | |
| MFCD - 2400 | 4.5 | 2400 | 6.5 | 450 | |
| MFCD - 2600 | 5.3 | 2600 | 8.7 | 450 | |
| MFCD - 2800 | 6 | 2800 | 12 | 450 | |
| MFCD - 3000 | 7 | 3000 | 13 | 500 | |
| MFCD - 3200 | 8 | 3200 | 14.5 | 500 | |
| MFCD - 3400 | 9 | 3400 | 15 | 500 | |
| MFCD - 3600 | 10 | 3600 | 20 | 500 | |
| MFCD - 3800 | 11.3 | 3800 | 23 | 500 |
Talk to Our Engineers to Get a Free, Customized Filtration Solution.
A Filter-Wash-Dry System is an integrated process equipment that performs solid-liquid separation, cake washing, and drying in a single closed vessel. It is widely used in industries requiring high purity and controlled processing conditions.
The system first filters slurry to form a solid cake, then washes the cake to remove impurities, and finally dries it using vacuum, inert gas, or thermal methods—all within the same unit without transferring materials.
Key advantages include fully enclosed operation, reduced contamination risk, lower material loss, improved product purity, reduced handling steps, and significant savings in labor and equipment footprint.
These systems are widely used in pharmaceuticals, fine chemicals, biotechnology, new energy materials (such as lithium battery production), and high-value chemical processing where purity and efficiency are critical.
Traditional processes require separate equipment for filtration, washing, and drying, increasing transfer loss and contamination risk. The integrated system combines all steps in one unit, improving efficiency and product consistency.
For high-value, oxidation-sensitive fine chemical materials containing volatile organic compounds (VOCs), UNITE supplied BASF with a modular integrated system comprising a candle filter and a three-in-one filter dryer, also known as an Agitated Nutsche Filter Dryer (ANFD). The solution combines precision pre-clarification, solid-liquid separation, filter-cake washing, vacuum drying, and automatic discharge within an enclosed process. After commissioning, the project achieved a historic high in product purity, increased solvent recovery by 25%, and effectively eliminated odor leakage.
During the deep-processing and environmental-upgrade program at Kazakhstan’s Atyrau Refinery, UNITE supplied a modular three-phase separator for oily wastewater treatment and crude-oil pre-treatment. The system separates gas, liquid, and solid phases under high-flow, corrosive, and pressure-fluctuating conditions. It combines HIC-resistant or specially lined pressure-vessel construction, Hastelloy or super-stainless internal components, corrugated-plate mist elimination, cyclonic separation, coalescing elements, automated interface control, and all-weather insulation with electric heat tracing.
For Jiangxi Salt Chemical’s 55,000 t/y high-strength calcium sulfate project, UNITE supplied multiple large-scale automatic candle filters that integrate solid-liquid separation, displacement washing, pressure dewatering, back-pulse cake release, automatic discharge, and PLC-based process control. The project improved filter-cake washing, supported calcium sulfate quality above the stated industry benchmark, and reduced manual maintenance costs by approximately 60% compared with traditional filtration equipment.
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