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Candle Filter Cartridge for Polymer Melt Filtration in Nonwoven Fabric Production - China Suppliers & Factory
Description
In the production of spunbonded nonwoven fabrics, to ensure the smooth progress of the spinning process and reduce the occurrence of phenomena such as filament breakage and material dripping, two sets of filtration devices are generally installed. The first filter (coarse filter) is installed between the screw extruder and the metering pump. Its main function is to filter out larger impurities to extend the service life of the second filter device, protect the metering pump and spinning pump, increase the back pressure of the extruder, and thereby facilitate the exhaust and plasticizing of the material during compression. The second filter (fine filter) is installed in the spinning assembly. Its main function is to filter out finer impurities, crystal points, etc., prevent the spinneret from clogging, ensure the smooth progress of spinning, and improve the quality of the fibers.
Main features
- High filtration flow rate by good pleated technology
- Particle filtration performance well by multiple filter layers
- Corrosion resistance; High Temperature And Pressure Resistance
- Filter element is washable by ultrasound
Specification
The melt filter element is a kind of rod-shaped structure which sintered from five layers of metal wire mesh. At the center of the rod is a reinforcing skeleton, which withstands the pressure during filtration. The initial pressure used for the filter element is 2.156×106Pa, and the pressure during switching is 8.33×106Pa. The filter elements come in several models such as X6, X7, X11, and X12, and the mesh diameters range from 20μm to 40μm. The pore size of the mesh is the filtration accuracy of the filter element.
| Filter Raw Material | SUS304/316L |
|---|---|
| Filter Media | Metal sintering mesh, stainless steel wire mesh |
| Filtration Rating | 1-200 Micro |
| Filter Length | 16-60 inch (406.4-1524mm) |
| Working Temp. | ≤350℃ |
| Allowed Pressure difference | 10 bar/14psi |
| Connector Type | 222/226/215/M36/M28/M24/M22/M20 |
Note: We can provide high quality polymer pleated candle filters to meet your specific requirements of polymer melt filtration applications.
We list regular candle filter size as below, it is popular size in melt filtration machines, just for reference only.
| DIAMETER MM | LENGTH MM | SUITABLE FOR FILTRATION MACHINE |
|---|---|---|
| Φ35 | 425MM | PF2T-0.5B/PF2T-1.05B/PF2T-1.95B/PF2T-2.34B |
| Φ35 | 485MM | PF2T-1.26B/PF2T-2.34B/PF2T-2.7B/PF2T-3.5B |
| Φ35 | 525MM | PF2T-4.0B |
| Φ35 | 575MM | PF2T-4.5B/PF2T-5.5B |
| Φ50 | 500MM | PF2T-4.5B/PF2T-5.5B |
Frequently Asked Questions
Why are two filtration devices used in spunbonded nonwoven fabric production?
Two filters ensure smooth spinning and prevent filament breakage or material dripping. The coarse filter filters larger impurities to protect the metering/spinning pumps and extend the fine filter's lifespan. The fine filter removes finer impurities and crystal points to prevent spinneret clogging and improve fiber quality.
What are the primary features of these candle filter elements?
They offer high filtration flow rates due to advanced pleated technology, excellent particle filtration via multiple filter layers, corrosion resistance, high temperature and pressure resistance, and are washable using ultrasonic cleaning.
What materials are used to construct the melt filter elements?
The filter elements are made of SUS304 or SUS316L stainless steel. They feature a rod-shaped structure sintered from five layers of metal wire mesh, supported by an internal reinforcing skeleton to withstand high pressure.
What are the standard operating pressures and filtration ratings?
The initial pressure is 2.156×10^6 Pa, and the switching pressure is 8.33×10^6 Pa. The filtration rating ranges from 1 to 200 microns, with mesh diameters spanning from 20μm to 40μm.
Can these polymer pleated candle filters be customized?
Yes, high-quality polymer pleated candle filters can be custom manufactured to meet the specific requirements of your polymer melt filtration applications.