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perforated basket centrifuge
,bag lifting centrifuge
The top discharge centrifuge is designed for batch solid-liquid separation and dewatering of fine chemical crystalline materials.
It is suitable for small and medium batch production where the material requires flexible operation, easy discharge, controlled moisture reduction, and convenient cleaning between batches.
For fine chemical crystal production, Peony provides not only centrifuge equipment, but also model selection, material configuration, filter cloth matching, anti-corrosion design, and separation performance support.
Fine chemical crystal dewatering is not only about removing mother liquor. The centrifuge also needs to match crystal size, cake formation behavior, corrosion risk, washing requirement, and batch operation frequency.
This solution is suitable for:
| Fine Chemical Material | Application Purpose |
|---|---|
| Fine chemical intermediates | Batch crystal dewatering after crystallization |
| Organic salt crystals | Mother liquor separation and moisture reduction |
| Dye and pigment intermediates | Solid-liquid separation before drying |
| Pesticide intermediates | Batch dewatering and cake washing |
| Catalyst or additive crystals | Controlled crystal recovery |
| Inorganic fine chemical crystals | Filtration, washing, and dewatering |
| Small-batch specialty chemicals | Flexible multi-product processing |
| Laboratory to pilot-scale production | Process test and scale-up separation |
The top discharge structure is especially suitable when the production line requires simple operation, visible cake condition, flexible batch handling, and lower equipment investment.
In fine chemical crystal production, common separation problems include:
| Problem | Possible Cause | Solution Focus |
|---|---|---|
| High cake moisture | Fine particles, poor cake permeability, short dewatering time | Basket speed, cycle time, filter cloth selection |
| Slow filtration | Small crystal size or high liquid viscosity | Filter medium matching and cake thickness control |
| Difficult cake discharge | Sticky cake or compacted crystal layer | Proper loading volume and discharge tool design |
| Crystal loss | Wrong filter cloth mesh or unstable cake formation | Filter cloth selection and feeding control |
| Corrosion risk | Acidic, alkaline, chloride, or solvent-containing mother liquor | SS316L, duplex steel, titanium, or lining options |
| Product contamination | Poor cleaning or material residue from previous batch | Easy cleaning structure and batch changeover design |
| Unstable batch result | Feed concentration or particle size changes | Process evaluation before model selection |
The typical process is:
Filter cloth installation → Fine chemical slurry feeding → Mother liquor separation → Crystal cake formation → Optional cake washing → Final dewatering → Top manual discharge → Crystal collection → Cleaning for next batch
This process is suitable for fine chemical crystals that require batch separation, flexible production, controllable moisture, and simple operation.
For materials with high solvent content, strong corrosion, toxic vapor, or explosion risk, sealing structure, explosion-proof motor, nitrogen protection, or special material configuration should be evaluated before selection.
Technical Parameter
| 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 |
Flexible Batch Operation
The top discharge centrifuge is suitable for multi-product and small-to-medium batch production. It allows operators to adjust feeding, washing, dewatering, and discharge according to each material batch.
Easy Cake Observation
The operator can observe cake formation and discharge condition from the top side. This is useful for fine chemical crystals with changing particle size, color, viscosity, or filtration behavior.
Cost-Effective Separation
Compared with fully automatic discharge centrifuges, the top discharge design has a simpler structure and lower investment cost. It is suitable for cost-sensitive projects and intermittent production lines.
Custom Filter Cloth Selection
Filter cloth material and mesh size can be selected according to crystal size, filtration speed, liquid clarity, and product recovery requirements.
Anti-Corrosion Material Options
Contact parts can be made of SS304, SS316L, duplex stainless steel, titanium, or lined structure according to the mother liquor composition.
Easy Cleaning and Batch Changeover
The open-top structure makes internal cleaning and filter cloth replacement more convenient, especially for fine chemical production with frequent product changeover.
Available Custom Options
The centrifuge can be customized according to the process:
| Item | Available Configuration |
|---|---|
| Contact material | SS304, SS316L, duplex steel, titanium, lining options |
| Basket size | Selected according to batch capacity |
| Filter cloth | Selected according to particle size and filtration requirement |
| Motor | Standard or explosion-proof motor |
| Sealing design | Open type, sealed type, or vapor control design |
| Surface treatment | Polishing or anti-corrosion treatment |
| Control system | Standard control or customized control cabinet |
| Washing system | Optional cake washing pipe |
| Discharge tool | Manual scraper, shovel, or customized discharge tool |
| Cleaning access | Designed according to batch cleaning needs |
To recommend the right top discharge centrifuge, please provide:
Material name: fine chemical crystal / organic salt / pigment intermediate / pesticide intermediate / other
Material form: slurry / wet crystal / cake / powder
Batch capacity: kg per batch or tons per day
Particle size: mm or mesh
Solids content: %
Feed moisture: %
Target cake moisture: %
Mother liquor: water / solvent / acid / alkali / salt solution / other
Corrosion risk: chloride / acid / alkali / solvent / high temperature
Washing requirement: yes / no
Explosion-proof requirement: yes / no
Contact material preference: SS304 / SS316L / titanium / other
Downstream process: drying / packaging / reaction / further refining
Is this centrifuge suitable for fine chemical crystal dewatering?
Yes. It is suitable for batch solid-liquid separation of fine chemical crystalline materials, especially small and medium batch production.
When should I choose a top discharge centrifuge?
It is suitable when the project requires flexible batch operation, simple structure, easy cleaning, visible cake condition, and cost-effective dewatering.
Can it be used for corrosive materials?
Yes, but the material configuration should be selected according to the mother liquor. SS316L, duplex steel, titanium, or lining options can be considered.
Can it handle solvent-containing materials?
It may be possible, but solvent type, vapor risk, flash point, and explosion-proof requirements must be confirmed before selection.
Is it suitable for continuous production?
Top discharge centrifuges are mainly used for batch operation. For high-throughput continuous crystal dewatering, a pusher centrifuge or other continuous centrifuge may be more suitable.
If you have customer resources in fine chemicals, chemical intermediates, dye and pigment production, pesticide intermediates, or specialty crystal dewatering, Peony welcomes distributor and agent cooperation.
We support partners with centrifuge selection, process advice, material configuration, filter cloth matching, equipment supply, spare parts, and after-sales service.
Send us your customer’s material information and separation requirements. Our team will help evaluate a suitable top discharge centrifuge solution.
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