Candle Filters are named based on their shape. These filter elements are usually hollow tubes with a cap on the bottom and a threaded connector on top that attaches to a header. The outer face of the tube is usually made of punch plate, expanded metal, sintered metal, or porous ceramic to provide support for the filter media.
Material: PP, PE, PA, PTFE, PPS, PEEK
Weaving Methods: Plain, Twill, Satin
Cloth Codes Most Widely Used: ES-PCD18PB, ES-PCD03P, ES-TCD240DFB, ES-PPSCD20T, ES-PEEK
Candle Filter Cloth Widely Used: φ90, φ80, φ75,φ120
Description:
Fabric media is the most versatile; polypropylene, nylon, PTFE, polyester, and cotton textiles can be woven in a variety of styles to allow filtration ranging from 1-900 microns. Fabric media also allows higher flow rates.
Application:
Pharmaceutical Filters
Fine Chemistry Filters
Food Industry Filters
Fuel and Oil Additive Filters
Hazardous Materials Filters
Precious Metal and other Catalyst Recovery Filters
Advantages:
Excellent cake discharge.
Adapts readily to slurry thickening.
Minimum floor space.
Mechanically simple since there are no complex sealing glands or bearings.
Candle Filter Working Principle:
Feed to the filter is always positioned at the lower portion of the vessel to allow up-flow of the incoming slurry.
Desired for maintaining fast setting solids in a homogeneous suspension and thus ensuring that uniform cakes are formed.
An uneven cake thickness that tapers up interferes with the efficiency of cake washing and reduces the effective volume of the cake that accumulates on the filtering elements.
To control the up-flow velocity an overflow connection is positioned on the dished top and the selected pump must be sized to deliver a higher rate than required for the calculated material balance.
Technical Parameters for Several Common Use Cloth.
Technical Parameters for Several Common Use Cloth
Product Code | Material | Yarn Type | Weight (g/m²) | Thickness (mm) | Air Permeability
(L/m²/S @125pa) |
ES-PCD18PB | PP | Multi/Multi | 390 | 0.76 | 22 |
ES-PCD03P | PP | Multi/Multi | 430 | 0.71 | 3 |
ES-TCD240DFB | PE | Multi/Multi | 225 | 0.3 | 289 |
ES-PPSCD20T | PPS | Multi/Multi | 420 | 0.85 | 25 |
ES-PEEK | PEEK | Multi/Multi | 430 | 0.61 | 12 |