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| Place of Origin: | China |
| Brand Name: | Longdai |
| Model Number: | LW |
| Document: | Long Dai Water Treatment Eq...ue.pdf |
| Minimum Order Quantity: | 1Set |
|---|---|
| Price: | 15000USD-25000USD |
| Packaging Details: | Wooden or customized |
| Delivery Time: | 30 working days |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability: | 100Set Per Month |
| Material: | SS304 | Machinery: | Separation Centrifuge |
|---|---|---|---|
| Discharge Type: | Spiral Screw Discharge | Item: | Industrial Separator Centrifuge Machine |
| Description: | Solid-liquid Separation Machine | Auxiliary Motor Power: | 7.5kw |
| Drum Length: | 1720L | Keywords: | Fish Oil Decanter Centrifuge |
| Capacity: | Up To 1000 Cubic Meters Per Hour | Power: | 30Kw |
| Highlight: | Decanter centrifuge wastewater treatment,Industrial decanter centrifuge technology,Decanter centrifuge for global applications |
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Decanter Centrifuge Technology for Global Wastewater Treatment Applications
The decanter centrifuge (also known as a horizontal spiral centrifuge) is a continuous solid-liquid separation system widely used in municipal wastewater treatment, industrial effluent processing, oil & gas drilling mud management, food processing, chemical/pharmaceutical production, and mining.
By leveraging high-speed rotation to generate strong centrifugal force, the decanter centrifuge rapidly separates solid particles from liquid suspensions. Key advantages include:
The core structure consists of a rotating bowl and a scroll conveyor, both rotating in the same direction at slightly different speeds (differential speed).
A planetary gear differential or hydraulic differential system precisely regulates the speed difference between bowl and scroll (typically 2–50 rpm), optimizing separation performance for diverse feed materials.
| Parameter | Specification | Notes |
|---|---|---|
| Bowl Diameter | 220 mm – 1,200 mm | Covers lab-scale to heavy industrial applications |
| Bowl Length | 600 mm – 5,000 mm | L/D ratio: 1.5 – 5.0 |
| Length-to-Diameter Ratio (L/D) | 2.0–4.5 (standard); up to 5.0 (high-clarity models) | Higher L/D = longer residence time = better clarification |
| Bowl Material | Duplex SS 2205/2507, SS316L, Titanium, Hastelloy | Customized based on media corrosivity |
| Scroll Material | Tungsten carbide cladding, ceramic lining, wear-resistant alloy steel | For highly abrasive conditions |
| Machine Weight | 800 kg – 25,000 kg | Varies by model and configuration |
| Parameter | Specification | Description |
|---|---|---|
| Max Rotational Speed | 1,600 – 4,000 rpm (diameter-dependent) | Smaller bowls = higher RPM |
| Separation Factor (G-force) | 1,500 G – 4,000 G | Determines separation efficiency |
| Capacity | 1 – 150 m³/h (slurry) | Depends on solids concentration & properties |
| Solid Recovery Rate | ≥95% – 99.5% | Influenced by particle size & density difference |
| Cake Moisture Content | 65% – 85% (adjustable) | Tuned via differential speed & weir plate depth |
| Liquid Clarity | 90% – 99% SS removal | Enhanced with extended clarification zone |
| Parameter | Specification |
|---|---|
| Main Motor Power | 7.5 kW – 250 kW (VFD-controlled) |
| Auxiliary Motor (Differential Drive) | 3 kW – 45 kW |
| Hydraulic Power Unit (for hydraulic models) | 5.5 kW – 30 kW |
| Differential Speed Range | 0.5 – 50 rpm (infinitely adjustable) |
| Vibration Monitoring | Dual-channel sensors for real-time bearing health |
| Temperature Monitoring | Real-time tracking of main bearings, gearbox, and motor windings |
| Automation Level | PLC control / DCS integration / Cloud-based remote monitoring (optional) |
| Configuration Type | Key Features | Typical Applications |
|---|---|---|
| Counter-Current | Solids and liquid flow in opposite directions; longer retention time | High-concentration, difficult-to-separate slurries |
| Co-Current | Solids and liquid flow in same direction; strong flushing effect | Sticky or fibrous materials prone to clogging |
| Tricanter (3-Phase) | Simultaneously separates two liquids + solids (e.g., oil/water/solids) | Oily sludge, food waste, grease recovery |
| High-Temp/High-Pressure | Operates up to 150°C and 1.0 MPa | Thermal-sensitive chemical processes |
| Explosion-Proof (ATEX) | Certified to Ex d IIB T4 / Ex e II T4 | Oil & gas, chemical plants, pharma hazardous zones |
| Sanitary Grade (3A) | No dead zones; supports CIP/SIP cleaning | Food, beverage, and pharmaceutical GMP compliance |
| Application | Objective | Typical Results |
|---|---|---|
| Municipal Sludge Dewatering | WAS, primary sludge | Moisture reduced from 99% → 75–80% |
| Industrial Effluent (Textile, Paper, Leather) | SS & COD reduction | SS removal >95%; COD reduction 30–50% |
| River Dredging Slurry | Volume reduction of fluid mud | >90% volume reduction for easier disposal |
| Sector | Feed Material | Separation Goal |
|---|---|---|
| Vegetable Oil Extraction | Palm, olive, soybean oil | Oil/water/solid tricanter separation |
| Juice Clarification | Apple, orange, grape juice | Removal of pulp, fibers, and pectin |
| Brewing | Beer yeast, wine lees | Yeast recovery & liquor clarification |
| Biopharma | Microbial cells, protein precipitates | Cell recovery rate >98% with high viability |
✅ Continuous Operation: 24/7 runtime with no batch interruptions
✅ Fully Enclosed Design: Zero odor emission—meets strict environmental standards
✅ Wide Feed Compatibility: Handles 0.5%–60% solids concentration
✅ High Automation: One-button start/stop, auto-cleaning, unattended operation
✅ Energy Efficient: 30–50% lower energy per unit volume vs. filter presses
| Criteria | Decanter Centrifuge | Plate-Frame Filter Press | Belt Press |
|---|---|---|---|
| Footprint | Small (60% less space) | Large | Medium |
| Labor Required | 1 operator/shift (monitoring) | 2–3 operators/shift | 1–2 operators |
| Polymer Consumption | Low (often optional) | High (mandatory) | Moderate |
| Consumables Cost | No filter cloths; long-life wear parts | Frequent filter cloth replacement | Filter belt replacement |
| Cake Moisture Stability | Highly consistent | Variable | Moderate |
| Wash Water Usage | Optional wash function | High water demand | Moderate |
Clients must provide:
| Series | Bowl Diameter | Capacity Range | Typical Use |
|---|---|---|---|
| Lab Scale | 220–360 mm | 0.5–5 m³/h | R&D, pilot testing |
| Small Industrial | 360–450 mm | 3–15 m³/h | Small WWTPs, food plants |
| Medium Industrial | 520–720 mm | 10–50 m³/h | Municipal plants, general industry |
| Large Industrial | 800–1,000 mm | 40–100 m³/h | Major WWTPs, mining |
| Extra-Large | 1,200 mm+ | 80–150 m³/h | Mega-projects, offshore platforms |
| Phase | Services |
|---|---|
| Pre-Sale | Lab testing, sizing calculation, process design, CAPEX estimation |
| In-Sale | Installation supervision, commissioning, operator training, manuals |
| Post-Sale | Spare parts supply, remote diagnostics, on-site service, system upgrades |
Our equipment is designed and manufactured in accordance with international standards, including:
(Note: Specific certifications available upon request based on project location and industry.)
As a cornerstone of modern solid-liquid separation technology, the decanter centrifuge has become the global standard for efficient, continuous, and automated dewatering across environmental and industrial sectors.
We are committed to delivering end-to-end solutions—from lab-scale feasibility testing and customized engineering to integrated system delivery—helping our international partners achieve sludge minimization, resource recovery, and regulatory compliance.
Contact Person: Mr. Vance
Tel: +8615301537517
Fax: 86-0510-87837599
