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.

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

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.