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perforated basket centrifuge
,bag lifting centrifuge
The Bag Lifting Centrifuge is designed for batch crystal recovery, mother liquor separation, controlled washing, and gentle discharge of high-purity flavor and fragrance intermediates.
It is suitable for crystalline organic intermediates produced by solvent crystallization, cooling crystallization, reaction crystallization, or purification processes. These products often have high value and strict requirements for product cleanliness, residual solvent control, odor isolation, and batch-to-batch changeover.
- High-purity flavor intermediate crystal recovery
- Fragrance intermediate crystal separation
- Aroma chemical intermediate dewatering
- Fine organic crystal washing before drying
- Solvent-based crystallization separation
- High-value specialty chemical product recovery
- Mother liquor removal before vacuum drying
- Intermediate purification after recrystallization
- Batch crystal handling for multi-product production
- Solvent recovery connection after centrifugation
Peony provides the batch solid-liquid separation section between crystallization and downstream drying, purification, or packaging.
Crystallizer → Slurry Holding Tank → Controlled Feed → Bag Lifting Centrifuge → Mother Liquor / Solvent Collection → Optional Cake Washing → Spin Drying → Filter Bag Lifting → Vacuum Dryer / Tray Dryer / Packaging
Peony can provide:
- Bag lifting centrifuge matched to batch size and crystal condition
- Filter bag material and micron rating selection based on crystal size and fines content
- Controlled slurry feeding for stable cake formation
- Optional low-loss cake washing to reduce mother liquor and impurity carryover
- Closed mother liquor and solvent collection connection
- Separate collection of initial filtrate and wash filtrate when required
- Product-contact material and sealing configuration based on solvent compatibility
- PLC-controlled batch sequence with safety interlocks
- Optional explosion-proof motor and electrical configuration
- Connection to vacuum dryers, solvent recovery systems, conveyors, and packaging equipment
1. Controlled Slurry Feeding
Crystal slurry enters the rotating basket through a controlled feed system.
The feed rate is adjusted to support even product distribution and stable cake formation.
2. Mother Liquor Separation
Under centrifugal force, mother liquor or solvent-containing filtrate passes through the filter bag and basket perforations.
The separated liquid can be transferred to a solvent recovery system, mother liquor tank, recycle tank, or further purification section.
3. Crystal Cake Formation
The flavor or fragrance intermediate crystals remain inside the filter bag and gradually form a filter cake.
The filter bag is selected according to crystal size, fines content, filtration speed, and required filtrate clarity.
4. Optional Cake Washing and Spin Drying
A controlled wash step can reduce residual mother liquor, solvent residues, or soluble impurities on the crystal cake.
The basket then continues rotating to reduce free liquid before discharge.
5. Filter Bag Lifting Discharge
After the batch cycle, the filter bag is lifted to remove the dewatered crystal cake.
This supports cleaner product discharge and reduces the need for manual scraping inside the basket.
| Type | Diameter (mm) | Volume (L) | Capacity (kg) | Speed (rpm) | G-force | Power (kw) | Weight (kg) | Dimension(L*W*H)(mm) |
|---|---|---|---|---|---|---|---|---|
| PPBL-155 | 800 | 115 | 155 | 1500 | 1008 | 7.5 | 1800 | 1800*1050*1140 |
| PPBL-230 | 1000 | 170 | 230 | 1200 | 806 | 11 | 2800 | 2030*1300*1220 |
| PPBL-340 | 1200 | 250 | 340 | 800 | 431 | 11 | 3200 | 2300*1500*1350 |
| PPBL-400 | 1250 | 280 | 400 | 950 | 631 | 18.5 | 4200 | 2350*1550*1370 |
| PPBL-400-NA | 1250 | 400 | 540 | 950 | 631 | 22 | 5000 | 2350*1550*1520 |
| PPBL-650 | 1500 | 500 | 650 | 850 | 607 | 30 | 5200 | 2900*1900*1575 |
| PPBL-650-NA | 1500 | 600 | 800 | 850 | 607 | 37 | 5700 | 2900*1900*1800 |
Gentle Product Discharge
The filter bag lifting system avoids direct scraper contact with the crystal cake, helping reduce mechanical damage during discharge.
Lower Product Retention
The complete cake is removed together with the filter bag, helping reduce valuable product remaining inside the basket.
Closed Solvent and Mother Liquor Handling
Filtrate can be collected through closed piping and connected to recovery, recycle, or treatment systems.
Controlled Cake Washing
Optional washing can reduce residual mother liquor and impurity carryover before downstream drying or further purification.
Better Batch Changeover
Removable filter bags and cleanable product-contact parts support easier cleaning and changeover for multi-product flavor and fragrance intermediate production.
Flavor and fragrance intermediates are often separated from solvent-based crystal slurry. Peony can configure the centrifuge according to solvent properties, vapor control requirements, recovery routes, and plant safety standards.
- Closed filtrate piping for mother liquor and solvent collection
- Separate collection of mother liquor and wash filtrate when required
- Sealed cover and vent connection for vapor handling
- Explosion-proof electrical configuration for applicable plant areas
- Solvent-compatible seals, filter bags, and product-contact materials
To recommend a suitable Bag Lifting Centrifuge, please provide:
- Product name and crystal composition
- Crystal size distribution and fines content
- Slurry solids concentration
- Mother liquor or solvent composition
- Separation temperature
- Required batch capacity
- Required production capacity
- Target cake moisture
- Cake washing requirement
- Solvent recovery or recycle arrangement
- Product-contact material requirement
- Explosion-proof requirement
- Cleaning or CIP requirement
- Downstream drying and handling arrangement
Is this centrifuge suitable for solvent-based flavor and fragrance intermediate crystallization?
Yes. It can be configured for solvent-based crystal separation when the intermediate forms a stable and filterable cake. The final design should consider solvent compatibility, crystal size, filtrate handling, and explosion-proof requirements.
Why use a bag lifting centrifuge instead of a scraper discharge centrifuge?
Bag lifting discharge avoids direct scraper contact with the cake. It is suitable when lower product retention, cleaner batch changeover, and gentler product handling are important.
Can mother liquor and wash filtrate be collected separately?
Yes. The system can be designed to collect initial mother liquor and wash filtrate separately for solvent recovery, recycle, re-concentration, or controlled treatment.
Can the product be washed inside the centrifuge?
Yes. An optional in-basket washing system can reduce residual mother liquor and soluble impurities. Wash liquid type, dosage, temperature, and contact time should be selected according to product solubility and purity requirements.
Can the centrifuge connect to a vacuum dryer or solvent recovery system?
Yes. The discharged crystal cake can be transferred to a vacuum dryer, tray dryer, filter dryer, conveyor, or packaging line. The filtrate outlet can also connect to a solvent recovery or mother liquor recycle system.
Peony welcomes distributor and agent cooperation with flavor and fragrance ingredient producers, fine chemical manufacturers, crystallization contractors, solvent recovery companies, and industrial separation partners.
We support partners with centrifuge selection, filter bag matching, solvent-compatible material configuration, cake washing design, closed filtrate collection, installation guidance, commissioning support, spare parts, and after-sales service.
Send us your target market, product type, solvent system, crystal size, batch capacity, washing requirement, target moisture, and downstream handling arrangement. Our engineering team will help recommend a suitable Bag Lifting Centrifuge solution and cooperation proposal.
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