High solids capture efficiency.
Fully enclosed design and automatic operation.
Unique cloverleaf shaped candle element design.
Very low operating costs.
Slurry or dry cake discharge possible.
The unique cloverleaf shaped candle element design of this tubular pressure filter is at the heart of the self cleaning filter system. This design allows for efficient solid-liquid separation resulting in a polishing grade filtrate while guaranteeing adherence of the filter cake to the cloth throughout the entire filtration cycle, as well as effective and automatic cake discharge. Once the clean filtrate has passed through the filter cloth, it flows into the perforated peripheral tubes and then down to the bottom of the candle, before rising in the central tube toward the registers.
Regardless whether the solids discharge is in slurry or a dry cake form, it is achieved by a rapid counter-current flow and pressure from the inside of the candle. The patented candle structure accentuates the effect of this counter-current flow. A quick-pulse air or nitrogen (gas) blowback results in a rapid flexing of the filter media away from the candle. This breaks the cake away from the filter media, causing it to fall from the candle to the bottom of the filter vessel.
It is perfectly suited for automatic operation via PLC or DCS. This ensures reliable product quality and reproducible batch filtration. It is designed to operate in the absence of any moving parts. As a result, maintenance requirements and costs are extremely low. The use of new synthetic materials, particularly filter internals, contributes to reliable operation and long life of the filters.
Decolorization of mother liquor in adipic acid production.
Mercury removal from crude oil to prevent upsets in downstream processes, such as contamination of precious metal hydrogenation catalyst used in catalytic cracking.
Removal of carbon and FeS scale in amine treatment.
Suspension preparation of fibres and solvents.
Removal of mineral gangue solids from rare earth element rich liquor.
Sulfur removal in redox sulfur recovery processes.
