The Unite U-CL-V leaf filter, also known as a pressure leaf filter or thickener, uses filter discs as the filtration elements. The filter discs are mounted on the main shaft and rotate at a low speed during operation. The filtrate passes through the filter layer from both the upper and lower surfaces of the discs and flows into the internal channels of the filter discs.
Solid particles, such as catalyst particles, are retained on the surface of the filter discs, gradually forming a filter cake layer. The clarified liquid flows through the hollow main shaft and is discharged from the outlet at the bottom of the vessel.
A scraper system continuously controls the thickness of the filter cake on the filter discs, enabling high-precision cake filtration while reducing the rate of resistance increase and maintaining stable filtration performance.
Pressure leaf filters are highly efficient, reliable, versatile, and environmentally friendly filtration solutions widely used in industrial processes. Their key advantages include improved product quality, enhanced production efficiency, and compliance with strict industry standards.
Scalable Filtration Area
The vertical stacking arrangement of filter leaves provides a large and flexible filtration surface area, maximizing filtration capacity and efficiency.
Continuous Closed Operation
The system supports enclosed filling, filtration, cake discharge, and cleaning operations, enabling continuous processing with minimal interruption.
Wide Application Versatility
Pressure leaf filters are widely applied in chemical, pharmaceutical, food, and other industrial sectors, providing reliable filtration solutions for various process requirements.
The Unite automatic backwashing filtration system consists of multiple parallel filtration units arranged in rows and groups. During normal filtration, fluid flows from the outside to the inside of the filter elements, while the backwashing process operates in the opposite direction.
When raw material enters the filter vessel, particulate impurities are captured on the outer surface of the filter elements and gradually accumulate to form a filter cake. As the filter cake thickness increases, the filtration resistance rises and the pressure differential gradually increases. When the preset differential pressure or cleaning time is reached, the automatic control system initiates the backwashing process.
The inlet valve of the corresponding filtration group is closed first, and the backwash valve is then opened rapidly. Clean filtered liquid flows from the inside to the outside of the filter elements under pressure, removing the accumulated filter cake from the surface. The discharged contaminants are removed through the drain line.
After one filtration group completes backwashing, the drain valve is closed and normal filtration resumes. The control system then performs the same backwashing process for the remaining groups and rows sequentially, ensuring continuous filtration operation without system shutdown.
The unfiltered solution fills the entire vessel and is circulated through theoverflow port, keeping the suspended solids in a uniform state.
The filtrate passes through the filter cake layer, filter screen, and spacerring area to the hollow shaft and filtrate outlet.
As the filter disc rotates, the dried filter cake is thrown off the disc andfalls to the bottom of the equipment by gravity, and is dischargedthrough the bottom discharge port.
The suspension is circulated through the filter disc, and the solid phaseaccumulates uniformly on the entire surface of the filter disc, forming apre-coat layer.
Washing is performed by circulating the washing liquid through the filter.Heating/Drying
The wet filter cake is thrown off the rotating filter disc and falls to thebottom. It can be discharged through the discharge port with theassistance of a suitable solvent. Pressure assistance can ensure the flowof viscous mixtures.
| Model | Filtration Area (m2) | Diameter of Filter Disk (mm) | Work Pressure (Mpa) | Outline Dimension φxH(mm) |
|---|---|---|---|---|
| U-BS-M-2 | 2 | 400 | 0.4 | 900*3480 |
| U-BS-M-3 | 3 | 600 | 1200*3650 | |
| U-BS-M-5 | 5 | 600 | 1200*4050 | |
| U-BS-M-7 | 7 | 800 | 1400*3900 | |
| U-BS-M-10 | 10 | 1000 | 1900*4000 | |
| U-BS-M-15 | 15 | 1000 | 1900*4400 | |
| U-BS-M-20 | 20 | 1000 | 1900*4950 | |
| U-BS-M-25 | 25 | 1000 | 1900*5480 | |
| U-BS-M-30 | 30 | 1000 | 1900*6100 | |
| U-BS-M-35 | 35 | 1000 | 1900*7112 | |
| U-BS-M-40 | 40 | 1250 | 2300*6210 | |
| U-BS-M-45 | 45 | 1250 | 2300*6520 | |
| U-BS-M-55 | 55 | 1250 | 2300*7220 | |
| U-BS-M-65 | 65 | 1250 | 2300*8040 |
A Horizontal Leaf Filter is a closed pressure filtration system that uses horizontally arranged filter leaves inside a pressure vessel to separate solids from liquids. It is widely used for high-capacity industrial clarification and slurry filtration.
The slurry enters a sealed horizontal tank under pressure. Liquid passes through the filter leaves while solids are retained on the surface, forming a filter cake. After filtration, the cake is discharged using vibration, air blowback, or backwashing.
Key advantages include large filtration area, high throughput capacity, efficient cake formation and discharge, closed operation to prevent contamination, and suitability for automated batch filtration processes.
Horizontal leaf filters are commonly used in chemical processing, petrochemical refining, edible oil production, metallurgy, wastewater treatment, and fine chemical industries where high-volume solid-liquid separation is required.
Horizontal leaf filters provide larger filtration capacity and are better suited for high-solid or high-volume slurries, while vertical leaf filters are more compact and often easier to install in space-limited systems.
Pressure leaf filters and candle filters are both industrial solid-liquid separation systems widely used in chemical, petrochemical, pharmaceutical, and fine chemical industries.
A pressure leaf filter is an industrial solid-liquid separation system designed for efficient filtration of high-solid-content slurries.
Integrated, fully automated filtration and drying solutions ensure aclosed-loop, zero-leakage production environment for high-purity chemicalprocessing
We use cookies to collect information about how you use this site. We use this information to make the website work as well as possible and improve our services.more details
