Bag Lifting Centrifuge for Low-Residual High-Value Product Recovery

The Bag Lifting Centrifuge is designed for batch separation, washing, and recovery of high-value crystals or filterable solids after crystallization, reaction, extraction, or purification.

High-value product slurry may contain crystals or solids, mother liquor, soluble impurities, fine-particle fractions, and residual process liquid. The separation stage must remove liquid effectively while reducing product hold-up inside the basket, limiting loss during cake washing, and supporting controlled transfer to downstream handling equipment.

This configuration is suitable for specialty chemicals, organic acids, food ingredients, high-value salts, fine chemical intermediates, and other batch products where clean collection, low residual hold-up, and controlled product transfer are important.

• High-value crystal recovery after crystallization
• Product isolation after recrystallization or purification
• Small-batch recovery where residual product loss must be minimized
• Multi-product production requiring clean batch changeover
• Recovery of filterable solids from mother liquor or process liquor
• Product cake washing before final drying or packaging
• Batch separation with controlled whole-bag product transfer
• High-purity product collection with reduced basket-wall hold-up
• Specialty product recovery requiring lower operator contact
• Production lines connecting centrifuge discharge to dryer, screen, or packaging equipment

Peony provides the batch solid-liquid separation section between upstream crystallization, reaction, or slurry preparation and downstream drying, screening, storage, or packaging.

Crystallizer / Reactor / Slurry Tank → Controlled Feed → Bag Lifting Centrifuge → Filtrate 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 product condition
• Filter bag material and micron rating selected according to particle size and filtrate clarity
• Controlled slurry feeding arrangement for stable cake formation
• Optional cake washing system to reduce residual mother liquor or soluble impurities
• Filtrate collection, recovery, recycle, or treatment connection
• Filter bag lifting device and product collection bin
• Low-residual basket and bag discharge arrangement
• Cleanable product-contact configuration, as required
• PLC-controlled batch operation with safety interlocks
• Downstream dryer, screen, hopper, storage bin, or packaging connection

1. Controlled Slurry Feeding

High-value product slurry enters the rotating basket lined with a suitable filter bag through a controlled feed arrangement.

2. Liquid Filtration

Mother liquor or process liquid passes through the filter bag and basket perforations before leaving through the filtrate outlet.

3. Product Retention

Crystals or filterable solids remain inside the filter bag while the liquid phase is discharged.

4. Cake Formation

The retained solids 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, color-bearing liquor, or unwanted process residues retained in the cake.

6. Spin Drying

The basket continues rotating to reduce free liquid retained in the product cake before discharge.

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 product cake is lifted out and transferred to a collection bin, dryer feed station, screening section, storage bin, or packaging process.

Please provide:

• Product name
• Product value or recovery priority
• 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
• Acceptable product loss level
• Product-contact material requirement
• Cleaning requirement and batch changeover frequency
• Filter bag preference, if known
• Downstream dryer, screen, storage, or packaging arrangement
• Electrical or explosion-proof requirement, if applicable

Peony welcomes distributor and agent cooperation with high-value product manufacturers, food ingredient suppliers, organic acid processors, specialty chemical plants, crystallization contractors, salt processing partners, and batch solid-liquid separation solution providers.

We support centrifuge selection, filter bag matching, cake washing design, product-contact material configuration, filtrate recovery connection, installation guidance, commissioning support, spare parts, and after-sales service.

Send us your product name, crystal or particle size, batch capacity, slurry solids concentration, mother liquor composition, target cake moisture, recovery priority, washing requirement, and downstream handling arrangement.