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hemp extraction equipment
,virgin coconut oil centrifuge machine
The Bag Lifting Centrifuge is designed for batch separation, washing, and recovery of vitamin C crystals after crystallization or recrystallization.
Vitamin C crystal slurry normally contains ascorbic acid crystals, mother liquor, soluble impurities, and fine-crystal fractions. The separation stage must remove mother liquor effectively while controlling product loss during washing and avoiding unnecessary exposure to unfavorable temperature, air, or prolonged handling conditions.
This configuration is suitable for batch vitamin C production, recrystallization recovery, and high-purity food ingredient or fine chemical crystal handling where clean collection and low product residue are important.
- Vitamin C crystal separation
- Ascorbic acid crystal recovery
- Vitamin C recrystallization product recovery
- Mother liquor removal after vitamin C crystallization
- Optional cake washing before drying
- Batch recovery of water-soluble organic acid crystals
- High-purity fine chemical crystal collection
- Food ingredient crystal dewatering
- Vitamin C cake transfer to vacuum dryer, tray dryer, or fluid-bed dryer
- Multi-product batch separation requiring filter bag replacement
Peony provides the batch solid-liquid separation section between vitamin C crystallization and downstream drying or packaging.
Vitamin C Crystallizer → Slurry Holding Tank → Bag Lifting Centrifuge → Mother Liquor Collection / Recycle → Optional Cake Washing → Spin Drying → Filter Bag Lifting → Dryer / Screen / Packaging
Peony can provide:
- Bag lifting centrifuge selected according to batch capacity and crystal condition
- Filter bag material and micron rating selected according to crystal size and filtrate clarity
- Controlled slurry feeding arrangement for stable cake formation
- Optional cake washing system to reduce residual mother liquor
- Mother liquor collection, recycle, recovery, or treatment connection
- Filter bag lifting device and crystal collection bin
- Cleanable product-contact configuration, as required
- PLC-controlled batch operation with safety interlocks
1. Crystal Slurry Feeding
Vitamin C crystal slurry enters the rotating basket lined with a suitable filter bag.
2. Mother Liquor Filtration
Mother liquor passes through the filter bag and is collected through the filtrate outlet.
3. Crystal Retention
Vitamin C crystals remain inside the filter bag while the liquid phase is discharged.
4. Cake Formation
The retained crystals gradually form a stable filter cake inside the bag.
5. Optional Cake Washing
Compatible wash liquid can be introduced to reduce residual mother liquor, soluble impurities, or color-bearing liquor retained between crystals.
6. Spin Drying
The basket continues rotating to reduce free liquid retained in the vitamin C crystal cake.
7. Machine Stop and Top Opening
After the programmed separation cycle is complete, the centrifuge stops and the top cover is opened.
8. Filter Bag Lifting and Product Collection
The filter bag containing the dewatered vitamin C crystals is lifted out and transferred to a collection bin, dryer feed station, screening section, or packaging process.
| 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 |
Contained Batch Collection
The filter bag retains the entire crystal cake during discharge, helping reduce product residue inside the basket and simplifying transfer to downstream equipment.
Controlled Mother Liquor Removal
Filtration and spin drying reduce residual mother liquor before the crystals enter drying or final product handling.
Optional Low-Loss Cake Washing
A controlled wash step can reduce residual soluble impurities while helping limit unnecessary vitamin C dissolution.
Cleaner Changeover Between Batches
The removable bag arrangement supports filter media replacement, cleaning, and product changeover between production campaigns.
Flexible Downstream Connection
The lifted bag or collection bin can be connected with vacuum dryers, tray dryers, fluid-bed dryers, screens, storage bins, or packaging systems.
| Component | Typical Options |
|---|---|
| Product-contact material | SS304 or SS316L, as required |
| Filter bag material | Food-compatible synthetic fiber or customized material |
| Filter bag micron rating | Selected according to vitamin C crystal size and filtrate clarity target |
| Seals and gaskets | Silicone, EPDM, PTFE, FKM, or compatible materials |
| Surface finish | Standard cleanable finish or polished product-contact finish |
| Control mode | Manual, semi-automatic, or PLC-controlled batch operation |
| Cleaning method | Manual cleaning, spray-ball cleaning, or customized cleaning arrangement |
| Electrical configuration | Standard or explosion-proof, as required by plant conditions |
Please provide:
- Vitamin C product grade and purity target
- Crystal size range and fines content
- Batch volume or required production capacity
- Slurry solids concentration
- Mother liquor composition and concentration
- Feed temperature
- Required filtrate clarity
- Target cake moisture
- Cake washing requirement
- Product-contact material requirement
- Cleaning requirement and batch changeover frequency
- Filter bag preference, if known
- Downstream dryer, screen, or packaging arrangement
- Electrical or explosion-proof requirement, if applicable
Is a Bag Lifting Centrifuge suitable for vitamin C crystal separation?
Yes, provided the vitamin C crystals can form a stable and filterable cake. It is particularly suitable for batch recovery where clean product collection and low residual hold-up are important.
Can vitamin C crystals be washed inside the centrifuge?
Yes. An optional wash system can be configured to reduce residual mother liquor and soluble impurities. Wash-liquid conditions should be controlled carefully to limit unnecessary product dissolution.
Why use a filter bag for vitamin C crystal recovery?
The filter bag contains the crystal cake during removal. This supports cleaner batch collection, reduces product hold-up inside the basket, and simplifies transfer to downstream drying.
Can the mother liquor be recycled?
Yes. The separated mother liquor can be returned to crystallization, routed for recovery, or sent to further treatment depending on the overall process route.
Can the recovered vitamin C crystals go directly to a dryer?
Yes. The lifted bag or collected crystal cake can be transferred to a vacuum dryer, tray dryer, fluid-bed dryer, screen, storage bin, or packaging system according to the plant layout.
Peony welcomes distributor and agent cooperation with vitamin C producers, food ingredient manufacturers, fine chemical plants, organic acid processors, crystallization contractors, and batch solid-liquid separation partners.
We support centrifuge selection, filter bag matching, cake washing design, product-contact material configuration, mother liquor recovery connection, installation guidance, commissioning support, spare parts, and after-sales service.
Send us your vitamin C crystal size, batch capacity, slurry solids concentration, mother liquor composition, target moisture, washing requirement, and downstream handling arrangement.
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