Wheat Straw Pulp Evaporation Station With Five Effect Pillow Plate Evaporator
Price:
200,000USD~1,000,000USD/SET
MOQ:
1 set
Delivery Time:
90 days
Brand:
HANPU
Product Description
Wheat Straw Pulp Evaporation Station With Five Effect Pillow Plate Evaporator
Hanpu supplies a high-efficiency five-effect evaporation station engineered for wheat straw pulp mills. Using pillow plate (dimple plate) heat-exchange technology and falling-film hydraulics, the system concentrates black liquor or filtrates with low fouling, stable operation, and best-in-class steam economy—ready for chemical recovery or downstream crystallization.
Key Features
- Energy Saving: Five effects in series reuse vapor enthalpy, delivering a steam economy typically 4.0-5.5 kg water/kg steam, cutting boiler load and CO₂ emissions.
- Low Fouling on Fibrous Streams: Pillow plate channels promote turbulence with wide cross-sections, reducing scaling and fiber deposition commonly seen with straw-derived liquors.
- Compact & Maintainable: Lightweight plates allow tight footprints, easy access for inspection, and rapid plate replacement compared with bulky shell-and-tube bundles.
- Recovery-Ready: Clean condensate reuse, optional stripping of volatiles, and NCG handling help meet environmental limits and improve alkali recovery performance.
Process Description
1. Feed preheat: Inlet liquor is preheated by condensate/flash vapor to minimize live steam.
2. Five-effect falling film: Even distribution over pillow plate panels; each downstream effect operates at lower pressure/temperature to cascade heat.
3. Vapor-liquid separation: High-efficiency demisters avoid entrainment; clean condensate is recovered.
4. Vacuum & NCG management: Surface condenser with vacuum pump removes non-condensables and controls TRS/odor.
5. Automation: PLC/HMI with recipes, trend logs, and surge protection; inline density/solids for set-point control.
6. Cleaning: Online water wash, alkaline/acid CIP, and optional piggable lines mitigate organic/inorganic fouling.
Materials & Compliance
- Metals: SS304/SS316L standard; Duplex 2205/2507 for chloride/alkali resistance in black liquor service.
- Gaskets & seals: EPDM/FKM/PTFE per temperature and chemical exposure.
- Standards: ASME/PED vessels, CE marking available; safety interlocks and pressure protection included.
Technical Specifications
| Item | Typical Range / Note |
|---|---|
| Application | Wheat straw pulp liquor, filtrates, and side streams prior to recovery or crystallization |
| Evaporation capacity | 10-120 t/h per line (customizable by effect area and plate count) |
| Effects | Five-effect (optional TVR on selected effects to boost economy) |
| Steam economy | ~4.0-5.5 kg water/kg live steam (feed and ΔT dependent) |
| Operating temperatures | First effect ~95-105 °C -> last effect ~55-65 °C (under vacuum; BPE considered) |
| Product outlet solids | Tailored to recovery boiler or crystallizer target; typical 45-65% TS |
| Controls | PLC/HMI, flow/level/pressure/temperature, density/°Brix (where relevant), condensate conductivity |
| CIP | Automated alkaline/acid/hot water cycles; online wash between batches or on condition |
| Footprint | Compact modular skids with accessible plate packs and separators |
Options & Enhancements
- Condensate stripping column for VOC/TRS reduction and water reuse.
- NCG collection with safe routing to oxidizer or recovery boiler.
- Heat-integrated preheaters and flash tanks to maximize internal energy recovery.
- MVR or additional TVR stages for higher electrical/steam flexibility.
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.
Values shown are typical. Final design depends on liquor composition, BPE, viscosity curve, scaling tendency, and site utilities.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Jiangsu Hanpu Mechanical Technology Co., Ltd
Location
Junmin Road, Huangqiao Industrial Park, Taixing, Jiangsu, China (Mainland)
Contact Person
Jim(General Director)