Unite provides systematic solutions for the entire process, from reaction,mixing, filtration and separation, drying, and conveying to packaging. The U-CF-S series Unite candle filter system is a fully enclosed, continuous,and highly safe energy-saving operating system that automaticallyregenerates the filter unit without stopping the system. It is suitable forcontinuous production operations, high-risk operating environments,and applications involving high-value filtration materials.
No residual liquid
The recycling system and spray design ensure complete batch filtration; No leakage pointsCustomized molds and precision machining are used, and all connectingparts are sealed with face-to-face O-rings;All parts feature quick-release designFrom the equipment to the filter elements, the entire system features aquick-release design, greatly improving maintenance efficiency andoperational reliability;
Stable system
Based on our long-term design experience with complete systems, wecan guarantee the stability of the control logic interlock and continuousproduction of the complete process equipment during automatedoperation.
Process skid design
The company possesses several internationally popular series ofcomplete system calculation software, which have become our mosteffective specialized tools for process calculation analysis and detaileddesign in the process projects we undertake. This allows for the supply ofprocess packages in skid-mounted units, enabling us to establishlong-term project cooperation relationships with leading globalcompanies.
The turbid liquid enters the Filter Housing through the Turbid Liquid Inlet and is evenly distributed under pressure. During filtration, solids are retained on the surface of the Tubular Filter Elements while the clarified liquid passes through the elements into the Collection Pipe and exits via the Clarified Liquid Outlet. As the solids accumulate, a filter cake forms on the elements. When the cake reaches the desired thickness, the system uses the Tailings Spray Nozzle for backwashing, dislodging the cake, which then settles by gravity and is discharged through the Filter Cake Outlet. The Overflow and Vent Port maintains stable pressure inside the housing, and the Instrument Interface monitors and controls the entire process.
When the solid-liquid mixture passes through the filter, solid particles are retained on the outer surface of the filter element and accumulate to form a filter cake. This leads to a gradual increase in the pressure difference between the inlet and outlet of the filter. When the pressure difference reaches a preset value, it indicates that the filter cake has attained a certain volume or thickness. This condition is simultaneously detected and controlled by a thickness sensor.
At this stage, the positive pressure process is initiated to continue pressing the liquid phase within the filtration tank. Once all the liquid in the tank has been pressed out and the residual liquid has been handled, the cake removal process commences.
The backflush valve is opened, while the inlet and outlet valves are closed, and the slag discharge valve is opened. Due to the backflush air, the filter cake expands instantaneously and is discharged through the bottom slag discharge valve into a solid-phase conveying or collection device.
| Parameter Item | Details |
|---|---|
| Equipment Model | U-CF-S, S1, S2, SS |
| Filtration Precision | 0.2 - 100 microns, depending on the filter element and functional design |
| Standard Design Pressure Rating | 0.6MPA/1.0MPA/1.6MPA/2.0MPA; higher pressures can be customized |
| Filter Element | PVDF, PTFE, PPS, PP, titanium materials, etc. |
| Maximum Design Temperature | 0 - 300°C |
| Flow Rate Range | 10 - 300M³/H |
| Filtration Area | 0.9m² - 150m²; larger specifications can be customized |
| Cylinder Diameter | Φ250 - Φ2500 |
| Back - blow Pressure Difference | 0.2MPA - 0.3MPA |
| Control System | PLC |
| Inlet and Outlet Sizes | 2" - 24" |
| Housing Material | 304/316L/CS/duplex steel/titanium; special materials can be customized |
| Internal Anti - corrosion Coating | Rubberized (suitable for carbon steel or special anti - corrosion requirements) |
| Housing Sealing Material | NBR nitrile rubber (standard)/VITON (FKM) fluororubber/metal graphite gasket |
| Drain Valve | Soft - sealed or hard - sealed butterfly valve |
| Optional Automation Control | Pressure/pressure - sensing transmitter, liquid level switch, filter cake thickness detector, flow meter, temperature meter, oxygen analyzer, etc. |
A Candle Filter is a pressure-driven filtration system that uses vertical cylindrical filter elements (candle-like structures) to separate solids from liquids. It is commonly used for high-efficiency solid-liquid separation and cake filtration.
The slurry is fed into a closed pressure vessel, where liquid passes through the porous candle elements while solids form a filter cake on the surface. The cake is later discharged by backwashing, vibration, or gas blowback.
Key advantages include high filtration efficiency, ability to handle high solids concentration, closed system operation (no leakage or contamination), low moisture cake discharge, and suitability for automated operation.
Candle filters are widely used in chemical processing, pharmaceuticals, petrochemicals, fine chemicals, metallurgy, and lithium battery materials production, especially for fine particle separation and high-purity requirements.
A candle filter uses vertical tubular elements and is better for fine filtration and automation, while a pressure leaf filter uses flat leaves and is more suitable for larger filtration areas and coarser slurries.
Integrated, fully automated filtration and drying solutions ensure aclosed-loop, zero-leakage production environment for high-purity chemicalprocessing
The filtration area of a single set of candle filter for this project reaches 115 square meters and above, with significant differences from small-spe
Unite's full-automatic candle filter is applied to the solid-liquid separation of high-salt wastewater in the PPS new material project of Xinhech
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