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Technical Specifications and Applications of Horizontal Screw Decanter Centrifuges for Solid-Liquid and Three-Phase Separation

Datos del producto:

Lugar de origen:	Porcelana
Nombre de la marca:	Longdai
Número de modelo:	LW
Documento:	Long Dai Water Treatment Eq...ue.pdf

Pago y Envío Términos:

Cantidad de orden mínima:	1 juego
Precio:	15000USD-25000USD
Detalles de empaquetado:	De madera o personalizado
Tiempo de entrega:	30 días laborables
Condiciones de pago:	LC, D/A, D/P, T/T, Western Union, MoneyGram
Capacidad de la fuente:	100Set por mes

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Descripción detallada del producto

Espejo de cuenco:	4000R/min	Material:	SS304
Maquinaria:	Centrífuga de separación	Fácil mantenimiento:	Desmontaje y limpieza rápidos
Colocación:	Motor doble con doble transductor	Velocidad del tambor:	Aproximadamente 3200r/min
peso:	1400	Características:	Funcionamiento continuo, alta eficiencia, bajo mantenimiento
Tipo de descarga:	Descarga espiral del tornillo	Tipo de centrifugadora:	Centrífuga decantadora
Resaltar:	Horizontal screw decanter centrifuge for solid-liquid separation , Three-phase separation decanter centrifuge , Industrial decanter centrifuge with screw design

Horizontal Screw Decanter Centrifuge Technical Documentation

Name: Technical Specifications and Applications of Horizontal Screw Decanter Centrifuges for Solid-Liquid and Three-Phase Separation
Brand: Jiangsu Longdai Environmental Protection Group Co., Ltd.
SKU: LW
Price: 20,000.00 USD
Availability: InStock

1. Product Overview

The horizontal screw decanter centrifuge (commonly referred to as a "decanter centrifuge") is a highly efficient, continuous solid-liquid separation device widely used in municipal wastewater treatment, industrial effluent processing, and sludge dewatering applications. It utilizes high-speed rotation to generate centrifugal forces (typically 2,000–4,000 times gravity) to rapidly separate solids from liquids in suspensions.

Key Advantages

Continuous Operation: Capable of 24/7 uninterrupted operation with minimal downtime for maintenance
High Separation Efficiency: Separation factor up to 2,000–4,000 × g, ensuring high throughput and clarity
Automated Control: Integrated PLC and HMI systems enable remote monitoring and control
Energy & Resource Efficient: Low power consumption and reduced chemical usage, aligning with sustainability goals

2. Technical Specifications

Two-Phase Decanter Centrifuge (Solid-Liquid Separation)

Model	Bowl Diameter (mm)	Capacity (m³/h)	Main Motor Power (kW)	Separation Factor (×g)	Machine Weight (kg)	Dimensions L×W×H (mm)
LW250	250	2–5	7.5–11	2,835	1,250	2,600 × 1,200 × 900
LW350	350	5–10	15–22	2,600	2,200	3,200 × 1,400 × 1,050
LW450	450	10–18	30–45	2,450	4,200	4,300 × 1,490 × 1,150
LW530	530	15–25	45–55	2,300	6,500	4,745 × 1,605 × 1,380
LW650	650	20–35	75–90	2,150	9,300	5,105 × 1,655 × 1,470
LW750	750	30–50	90–132	2,033	11,000	5,500 × 1,800 × 1,600

Three-Phase Decanter Centrifuge (Solid-Liquid-Liquid Separation)

Model	Max. Capacity (m³/h)	Main Motor Power (kW)	Weight (kg)	Dimensions L×W×H (mm)	Application Areas
LWS450	10–18	45–55	4,200	4,300 × 1,490 × 1,150	Oilfield waste oil, tank bottom sludge
LWS530	15–25	52–67	6,500	4,745 × 1,605 × 1,380	Food waste, coal tar
LWS650	20–35	75–120	9,300	5,105 × 1,655 × 1,470	Vegetable oil extraction

Key Technical Parameters Explained

Parameter	Range / Specification	Description
Bowl Speed	1,500–4,000 RPM	Higher speed increases centrifugal force and separation efficiency
Length-to-Diameter Ratio	3:1 to 4:1	Larger ratio = longer residence time; suitable for fine particles
Differential Speed	5–50 RPM	Speed difference between bowl and scroll; critical for cake transport
Separation Factor	2,000–4,000 × g	Determines separation sharpness and liquid clarity
Solid Recovery Rate	>95%	Enhanced by BD plate (beach discharge) technology
Cake Moisture Content	70%–80%	Reduces sludge moisture from ~99% down to 70–80%

3. Working Principle

The horizontal screw decanter centrifuge operates on the principle of centrifugal sedimentation:

Separation Process:

Feed Introduction: Suspension enters the rapidly rotating bowl via the feed pipe.
Centrifugal Separation: Under centrifugal force (typically 3,000–5,000 × g), denser solid particles settle against the bowl wall forming a solid ring, while lighter liquid forms an inner liquid layer.
Solids Conveying: A scroll conveyor (rotating slightly slower than the bowl due to differential speed) continuously pushes solids toward the conical end of the bowl.
Discharge:
- Liquid phase exits continuously over adjustable weir plates.
- Solid phase (cake) is discharged continuously through the solids outlet at the cone end.

4. Application Fields

Environmental & Water Treatment

Municipal Wastewater: Sludge thickening and dewatering to reduce transport and disposal costs
Industrial Effluents: Treatment in chemical, pharmaceutical, and food processing industries
Livestock Wastewater: Manure separation in poultry and livestock farms
Construction Slurry: Dewatering of tunnel boring (TBM) slurry and pile foundation drilling mud

Other Industrial Applications

Oil & Gas: Drilling mud solids control, oily sludge treatment, and waste oil recovery
Food Industry: Plant protein separation, juice clarification, starch dewatering
Bioenergy: Digestate dewatering from biogas plants, biodiesel production
Mining: Tailings dewatering and mineral classification

Technical Specifications and Applications of Horizontal Screw Decanter Centrifuges for Solid-Liquid and Three-Phase Separation 1

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