Flexible Batch Solid-Liquid Separation Top Discharge Centrifuge

The Top Discharge Basket Centrifuge is designed for flexible batch solid-liquid separation of filterable crystal slurries, precipitated solids, and reactor discharge materials.

It is suitable for small to medium production batches, pilot-scale projects, multi-product processing lines, and cost-sensitive applications where manual top discharge is acceptable. After filtration and spin drying, the machine is stopped, the top cover is opened, and the dewatered cake is removed manually from the basket.

Compared with automatic scraper or bag-lifting centrifuges, the top discharge design has a simpler structure and lower equipment investment. It is especially suitable when operators need to inspect the cake condition, adjust batch operation, handle different materials on the same line, or validate a process before larger-scale production.

The centrifuge can complete slurry feeding, filtration, optional cake washing, centrifugal dewatering, and manual top discharge within one batch cycle.

• Small and medium batch chemical separation
• Fine chemical crystal dewatering
• Reactor discharge slurry separation
• Pilot-scale solid-liquid separation
• Organic salt crystal dewatering
• Inorganic salt batch separation
• Washed crystal dewatering
• Chemical precipitate separation
• Pharmaceutical and agrochemical intermediate crystal recovery
• Dye intermediate crystal dewatering
• Multi-product batch processing
• Intermittent chemical production lines

The prepared slurry enters the rotating basket lined with filter media.

Under centrifugal force:

1. Slurry Feeding
   The crystal slurry or precipitated solids enter the rotating basket.
2. Liquid Filtration
   Mother liquor or process liquid passes through the filter medium and is collected through the filtrate outlet.
3. Cake Formation
   Product solids are retained inside the basket and gradually form a filter cake.
4. Optional Cake Washing
   Compatible wash liquid can be introduced to reduce residual mother liquor, soluble impurities, salts, or reaction residues.
5. Spin Drying
   The basket continues rotating to remove residual liquid from the cake.
6. Machine Stop
   After the programmed cycle is completed, the basket stops rotating.
7. Top Discharge
   The top cover is opened and the dewatered cake is manually removed for transfer to downstream equipment.

The batch cycle can be controlled through PLC operation, while the final cake removal is completed manually through the top discharge opening.

Suitable for Small and Medium Batch Production

The top discharge design is well suited to intermittent production, low-to-medium batch volumes, pilot-scale operation, and process development projects.

Flexible for Multi-Product Processing

The accessible basket structure makes cleaning, material changeover, and operation adjustment easier. This is useful for production lines handling different crystals, salts, intermediates, or reaction products.

Direct Cake Inspection

After the cycle is completed, operators can inspect cake thickness, crystal condition, washing result, and residual liquid before removing the material. This provides practical control during pilot work and variable batch production.

Cost-Effective Batch Separation

With a simpler discharge structure than automatic scraper or bag-lifting systems, the Top Discharge Basket Centrifuge can offer a cost-effective solution when full automatic cake discharge is not required.

Suitable for Reactor and Crystallizer Discharge

The centrifuge can be connected to crystallizers, reactors, precipitation tanks, or slurry holding tanks to separate filterable solids before drying, screening, packaging, or further processing.

To recommend a suitable Top Discharge Basket Centrifuge, please provide:

• Material name and process stage
• Crystal or particle size distribution
• Slurry solids concentration
• Mother liquor or process liquid composition
• Feed temperature and viscosity
• Required batch capacity
• Target cake moisture
• Cake washing requirement
• Product purity requirement
• Manual discharge acceptability
• Corrosion condition
• Required material of construction
• Installation area and power supply
• Explosion-proof requirement, if applicable

What is the main difference between a Top Discharge Centrifuge and a Scraper Bottom Discharge Centrifuge?

A Top Discharge Centrifuge requires the basket to stop before the top cover is opened and the cake is removed manually. A Scraper Bottom Discharge Centrifuge uses an automatic scraper and bottom outlet for automatic cake discharge.

Is the Top Discharge design suitable for pilot-scale production?

Yes. Its accessible basket and manual discharge make it suitable for pilot-scale trials, small-batch production, material testing, and process validation.

Can operators inspect the filter cake before discharge?

Yes. After the basket has stopped and the cover is opened, operators can inspect cake thickness, crystal condition, washing performance, and residual liquid before removing the cake.

Can the centrifuge perform cake washing?

Yes. An optional wash system can be installed to reduce residual mother liquor, salts, or soluble impurities before spin drying.

Is the centrifuge suitable for multi-product production lines?

Yes. The accessible top discharge structure supports cleaning, material changeover, and handling of different filterable materials. The final cleaning method should be confirmed according to product purity requirements.

Peony welcomes cooperation with distributors, agents, chemical producers, pilot plants, fine chemical companies, salt processors, and industrial partners involved in batch solid-liquid separation projects.

We support partners with centrifuge selection, process advice, filter media matching, wash system design, material configuration, pilot-scale evaluation, spare parts, and after-sales service.

Send us your customer’s material information, batch capacity, particle size, solids content, liquid composition, target moisture, washing requirement, and discharge preference. Our team will help evaluate a suitable Top Discharge Basket Centrifuge solution.