Bag Lifting Centrifuge for Fermentation Broth Product Recovery

The Bag Lifting Centrifuge is designed for the batch recovery, washing, and dewatering of valuable solid products obtained from fermentation broth after downstream purification.

In a typical fermentation-based production process, the raw broth first undergoes clarification, cell removal, concentration, pH adjustment, precipitation, crystallization, or solvent treatment. The resulting product slurry may contain target crystals or precipitated solids together with mother liquor, residual salts, color bodies, and soluble impurities.

It is suitable for fermentation-derived products that can form a stable and filterable cake, particularly where product recovery, purity control, hygienic handling, and reduced material loss are important.

• Recovery of crystallized products after fermentation purification
• Recovery of precipitated product solids after pH adjustment or neutralization
• Product cake washing after fermentation-derived product separation
• Dewatering of purified fermentation product slurry
• Batch harvesting before downstream drying and packaging
• Mother liquor removal from fermentation-derived product cake
• Recovery of filterable solids after concentration and crystallization
• Hygienic batch separation for high-value fermentation products

Fermentation-derived products often require controlled solid-liquid separation after purification, precipitation, or crystallization.

Typical requirements include:

• Complete recovery of valuable product cake
• Reduced mother liquor carryover before drying
• Controlled cake washing for purity improvement
• Lower product loss during discharge
• Hygienic batch handling
• Reduced cross-contamination between product campaigns
• Gentle handling of fragile crystals or soft precipitates
• Easier cleaning and filter bag replacement

The Bag Lifting Centrifuge supports these requirements through batch filtration, controlled cake washing, spin drying, and removable bag-lifting discharge.

Peony provides centrifuge equipment and separation support for crystalline fructose production, food ingredient processing, and hygienic crystal recovery projects.

Process Evaluation

Our engineers evaluate:

• Crystal size and cake-forming behavior
• Slurry solids content and mother liquor properties
• Target moisture and product purity
• Cake washing requirement
• Required capacity and downstream drying conditions

Equipment Selection

We help customers select:

• Suitable basket size and filter bag specification
• Filter screen and feed configuration
• Cake washing and spin-drying arrangement
• Bag lifting discharge system
• Product-contact materials, CIP option, and PLC automation level

After clarification, purification, precipitation, or crystallization, the filterable fermentation-derived product slurry enters the rotating basket lined with a filter bag and supporting filter screen.

Under centrifugal force:

1. Process liquid or mother liquor passes through the filter bag and is collected through the filtrate outlet.
2. The recovered product solids are retained inside the basket.
3. A filter cake gradually forms on the inner surface of the filter bag.
4. Optional wash liquid is introduced to reduce residual mother liquor and soluble impurities.
5. High-speed rotation removes residual moisture from the product cake.
6. The machine stops after the programmed cycle is completed.
7. The filter bag containing the dewatered product cake is lifted through the top discharge section.
8. The recovered product is transferred to downstream drying, milling, screening, packaging, or further purification equipment.

For food-grade, feed-grade, nutraceutical, pharmaceutical, and fine chemical applications, the product-contact configuration can be selected according to the required hygiene and cleanability standard.

To recommend a suitable Bag Lifting Centrifuge, please provide:

• Product name and production route
• Whether the product is crystallized or precipitated
• Particle size distribution
• Slurry solids concentration
• Mother liquor or process liquid composition
• Feed temperature
• Batch volume or required capacity
• Target cake moisture
• Product purity requirement
• Washing requirement
• Product-contact material requirement
• Surface finish and CIP requirement
• Installation area
• Power supply
• Explosion-proof requirement, if applicable

Peony welcomes distributor and agent cooperation in fermentation-based chemicals, amino acid production, food ingredients, feed additives, organic acid recovery, pharmaceutical intermediates, crystallization systems, and hygienic solid-liquid separation projects.

We support partners with centrifuge selection, process advice, filter bag matching, hygienic material configuration, cake washing design, CIP cleaning options, spare parts, and after-sales service.

Send us your customer’s product information, particle size, slurry solids content, liquid composition, batch capacity, target moisture, washing requirement, and product-grade standard. Our team will help evaluate a suitable Bag Lifting Centrifuge solution.