Closed pressure filtration
Industrial Candle Filter
Enclosed liquid clarification with multiple candle elements, project-specific vessels and optional filter-aid operation.
Product overview
Contained filtration for demanding process liquids
A candle filter places multiple vertical filter elements inside a closed pressure vessel. Solids are retained on the outside of the elements while filtrate is collected through the internal candle passages.
The filtration layer may be formed directly by the process solids or supported by a precoat/body-feed aid such as diatomaceous earth, depending on the application. Final vessel geometry, candle construction, discharge method and automation are selected from the actual process duty.
Operating sequence
How candle filtration is typically arranged
The sequence is adapted to the medium, solids, recovery target and cleaning method. Not every project uses every step.
Fill or precoat
Fill the closed vessel and, when required, establish a stable filter-aid layer on the candle surfaces.
Filter and build cake
Liquid passes through the filtration layer and candles while retained solids form a cake on the outside.
Recover and drain
Residual product may be displaced or recovered before the vessel is drained, subject to the process design.
Release the cake
Backblow, vibration, sluicing or another selected method releases the cake for contained discharge and cleaning.
Inside the vessel
Candle elements and internal arrangement
The element support, surface media, connection and spacing must match the solids, temperature, chemistry and cake-release method.
Application routes
Where candle filters are considered
Candle filtration is most valuable when a closed process, cake formation, product recovery or controlled solids discharge matters.
Palm oil & edible oil
Clarification and removal of bleaching earth, activated carbon or other process solids.
Chemical & oleochemical
Contained filtration of process liquids where material compatibility and recovery are important.
Food & beverage
Clarification duties for syrups, beverages and process ingredients subject to sanitary review.
Industrial liquids
Fine clarification, catalyst or carbon removal and selected product-recovery applications.
Real equipment evidence
Workshop, installation and delivery gallery
Actual JINLV manufacturing and project photographs. Images load only as this section approaches the viewport.
RFQ checklist
Send the process duty, not an assumed model
Candle filters are configured around the filtration cycle. Representative test data is especially useful for difficult products.
| Medium | Liquid composition, viscosity and product sensitivity |
|---|---|
| Solids | Type, concentration, particle character and expected cake |
| Filtration target | Required clarity, recovery objective and downstream protection |
| Operating envelope | Batch volume or flow, pressure, temperature and cycle time |
| Filter aid | Precoat/body-feed practice and grade, if already established |
| Construction | Wetted material, seals, connections, controls and installation limits |
Final filtration area, vessel dimensions and operating sequence are confirmed by quotation and approved drawing.
Technical inquiry
Have a candle filtration duty to review?
Send the medium, solids, flow or batch volume, temperature, pressure and clarity target. Sylvia will coordinate the technical review.