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Working Principle
1. Components & Operation
Main Structure: Comprises a crystallizer vessel, circulation pump, heat exchanger, and interconnecting piping.
Circulation System: Slurry is pumped from the bottom cone through a heat exchanger (or omitted in flash-cooling designs) and returned via a draft tube/tangential inlet. High recirculation rates (≥3 m/s) prevent scaling and ensure uniform heat transfer.
Evaporation Control: Steam flow and vacuum pressure regulate evaporation rates, maintaining vapor velocity ≤1.5 m/s to minimize droplet entrainment.
2. Flash Cooling Design
Eliminates heat exchangers for scaling-sensitive materials, using direct vaporization to reduce tube fouling risks.
1. Design & Performance
Simple Structure: Low investment cost and easy operation.
High Mechanical Energy Input: Promotes secondary nucleation for efficient production (ideal when large crystals are not required).
Scaling Resistance: High circulation velocities and optional flash cooling extend continuous operation to ＞3,000 hours.
2. Crystal Quality Control
Salt Leg (Elutriation Leg): Classifies crystals via fluidization, returning fines for further growth and discharging large particles (D50=0.2–0.8mm).
Uniform Suspension: 15–30% solids content ensures narrow particle distribution and ≥99.5% purity.
3. Operational Stability
Precise control of supersaturation, superheating, and circulation rates minimizes agglomeration and equipment downtime.
| Parameter | Value Range |
|---|---|
| Capacity | Hundreds kg/h to thousands tons/h |
| Operating Pressure | Atmospheric to slightly positive (adjustable) |
| Operating Temperature | Ambient to 200℃ (heat exchanger design) |
| Circulation Rate | Multiples to tens of times vessel volume |
| Material | 316L Stainless Steel/Hastelloy/C276 |
Chemicals: Ammonium sulfate, potassium nitrate, organic acids.
Pharmaceuticals: Antibiotics, vitamins, intermediates.
Food: Sucrose, glucose, lysine.
Environmental: Saline wastewater treatment (ZLD) for salt recovery.
Demister: Built-in/external to control condensate quality.
Baffle Zones: Optimize flow patterns in the vessel or circulation pipes.
Integrated Salt Leg: Enhances classification efficiency.
Customization: Process simulation, material selection, and capacity scaling.
Turnkey Solutions: Installation, commissioning, and operator training.
After-Sales Network: 24/7 maintenance, spare parts, and technical upgrades.
Specifications are adaptable to specific material properties (corrosivity, thermal sensitivity) and process requirements. Contact us for tailored configurations.
Working Principle
1. Components & Operation
Main Structure: Comprises a crystallizer vessel, circulation pump, heat exchanger, and interconnecting piping.
Circulation System: Slurry is pumped from the bottom cone through a heat exchanger (or omitted in flash-cooling designs) and returned via a draft tube/tangential inlet. High recirculation rates (≥3 m/s) prevent scaling and ensure uniform heat transfer.
Evaporation Control: Steam flow and vacuum pressure regulate evaporation rates, maintaining vapor velocity ≤1.5 m/s to minimize droplet entrainment.
2. Flash Cooling Design
Eliminates heat exchangers for scaling-sensitive materials, using direct vaporization to reduce tube fouling risks.
1. Design & Performance
Simple Structure: Low investment cost and easy operation.
High Mechanical Energy Input: Promotes secondary nucleation for efficient production (ideal when large crystals are not required).
Scaling Resistance: High circulation velocities and optional flash cooling extend continuous operation to ＞3,000 hours.
2. Crystal Quality Control
Salt Leg (Elutriation Leg): Classifies crystals via fluidization, returning fines for further growth and discharging large particles (D50=0.2–0.8mm).
Uniform Suspension: 15–30% solids content ensures narrow particle distribution and ≥99.5% purity.
3. Operational Stability
Precise control of supersaturation, superheating, and circulation rates minimizes agglomeration and equipment downtime.
| Parameter | Value Range |
|---|---|
| Capacity | Hundreds kg/h to thousands tons/h |
| Operating Pressure | Atmospheric to slightly positive (adjustable) |
| Operating Temperature | Ambient to 200℃ (heat exchanger design) |
| Circulation Rate | Multiples to tens of times vessel volume |
| Material | 316L Stainless Steel/Hastelloy/C276 |
Chemicals: Ammonium sulfate, potassium nitrate, organic acids.
Pharmaceuticals: Antibiotics, vitamins, intermediates.
Food: Sucrose, glucose, lysine.
Environmental: Saline wastewater treatment (ZLD) for salt recovery.
Demister: Built-in/external to control condensate quality.
Baffle Zones: Optimize flow patterns in the vessel or circulation pipes.
Integrated Salt Leg: Enhances classification efficiency.
Customization: Process simulation, material selection, and capacity scaling.
Turnkey Solutions: Installation, commissioning, and operator training.
After-Sales Network: 24/7 maintenance, spare parts, and technical upgrades.
Specifications are adaptable to specific material properties (corrosivity, thermal sensitivity) and process requirements. Contact us for tailored configurations.
Trust Taite Chemical Machinery for Robust & Reliable Pressure Vessels and Pharmaceutical Equipment Crafted with Precision.
