250 t/D Multi-Effect Evaporator — Cane Syrup Evaporation with Pillow Plate Technology
Engineered for sugar mills and cane syrup producers, Hanpu’s pillow plate (dimple plate) multi-effect evaporator concentrates raw cane juice/syrup with high thermal efficiency, gentle product handling, and sanitary design. The 250 t/D line (≈10.4 t/h) delivers consistent °Brix targets, low color formation, and reduced steam consumption.
High Steam Economy
Five-effect arrangement with optional TVR achieves typical economy of 3.5–5.0 kg water/kg live steam, cutting boiler load and operating cost.
Product Quality First
Short residence time, uniform falling film, and precise ΔT control limit sucrose inversion and color pickup—ideal for refined sugar and syrup grades.
Low Fouling & Easy Cleaning
Pillow plate turbulence suppresses scaling; automated CIP with alkaline/acid recipes restores heat-transfer quickly.
Compact Footprint
Plate-based exchangers reduce weight and space versus large shell-and-tube bundles, easing installation in existing mill buildings.
Process Overview
- Preheating: Raw or clarified juice preheated by condensate/flash vapors to minimize live steam demand.
- Multi-effect falling film: Even distribution over pillow plates; successive effects run at lower pressure/temperature under vacuum.
- Vapor–liquid separation: High-efficiency demisters minimize entrainment; clean condensate is recovered for process reuse.
- Vacuum & NCG control: Surface condenser with vacuum pump handles non-condensables, stabilizing boiling points and ΔT.
- Automation: PLC/HMI with °Brix/density loops, recipe set-points for campaign changes, and historian for quality tracking.
- CIP: Automated caustic/acid/hot water cycles; inline rinse between batches to maintain capacity.
Technical Snapshot (250 t/D Line)
| Item | Specification / Note |
| Capacity | ~250 tons per day (≈10.4 t/h) cane syrup evaporation (customizable) |
| Effects | 4–6 effects typical; five-effect with optional TVR boosters recommended for energy savings |
| Steam economy | ~3.5–5.0 kg water/kg live steam (feed °Brix, BPE, and ΔT dependent) |
| Operating temperatures | First effect ~95–105 °C → last effect ~55–65 °C (vacuum service; BPE accounted) |
| Inlet / outlet °Brix | Typical 12–18 °Brix in → 60–70+ °Brix out (set to downstream crystallization/filtering needs) |
| Materials | SS304 / SS316L product-contact; Duplex 2205 optional where chlorides are present |
| Sanitary design | Hygienic welds, drainability, mirror-finish channels, food-grade gaskets (EPDM/FKM/PTFE) |
| Instrumentation | Flow, level, pressure, temperature, condensate conductivity, °Brix/density, and ΔP trending |
| CIP | Automated alkaline/acid cycles; configurable time/temperature/chemistry recipes |
| Utilities | Live steam (0.6–1.0 MPa abs), cooling water for condenser, plant air, and power for drives/controls |
Applications & Integration
- Cane sugar mills: raw, clarified, or refined syrup concentration with low color development.
- Refineries: integration with carbonation/phosphatation, decolorization, and crystallizers.
- Food & beverage syrups: gentle evaporation for flavor retention and stable viscosity profiles.
Manufacturing & Assembly
Our Production Capability
Hanpu’s manufacturing base supports heavy plate forming, pillow plate welding, large-diameter column fabrication, and full-system skid assembly. In-house FAT ensures every evaporator meets performance guarantees before shipment.
Delivery Workflow
Feed data & targets → Thermal design & heat/mass balance → Pilot validation (optional) → Detailed engineering → Fabrication & FAT → Installation & commissioning → Performance test & training → Lifecycle service & spares.
Figures shown are typical. Final design depends on juice purity, BPE, viscosity curve, scaling tendency, and site utilities.
