What is Candle Filter?
Candle filters, also known as Backwashing Tubular Filters, are industrial filters used for filtration, polishing, and thickening liquids, slurries, or solids. The candle filter provides us with a high yield discharge of dried filter cake. These filters are suitable for the treatment of various filtrates like flammable, toxic, or corrosive materials. They are explicitly designed to work in harsh environments. Candle Filters runs in batch cycles and can automatically recycle and filter the filtrate without direct operator supervision.
Candle Filters consist of three major components:
Working Principle of the Candle Filter
Candle Filter Applications
How to Use a Candle Filter?
Pros and Cons of Candle Filters
Advantages of using candle filters:
- Good cake discharge
- Effective in slurry thickening
- Minimum floor space required
- The whole process is mechanically simple because there is no complex sealing glands or bearings.
Disadvantages of the candle filter
- The high headroom is needed for dismantling the filtering elements.
- Emptying the vessel between cake filtration, washing, and drying requires close monitoring of the pressure inside the vessel.
- Frequently monitor the filter to ensure that cake holds onto the candle.
Candle Filter’s Maintenance
Top Candle Filter Manufacturers
The candle filters should be selected in the following conditions:
When there is limited floor space, but large filtration areas are required.
When there are volatile materials that cannot be subjected to vacuum.
Candle Filters are needed for polishing applications where high filter clarity is required.
When there is a risk of an environmental hazard. This process has a secure discharge mechanism.
When the dry or thickened slurry cake is required.
Candle filters are best suited for flammable and hazardous substances. These filters can work efficiently in less floor space. Moreover, they can effectively filter the cake without leaving any impurities behind. The world’s top manufacturers supply good quality and highly affordable candle filters throughout the globe. But candle filters require close monitoring and periodic maintenance. You should look into all the pros and cons of a candle filter before buying one.