Product Description

The LWL Horizontal Spiral Discharge Filter Centrifuge is a model characterized by low energy consumption, stable performance, and excellent separation efficiency. It is widely used in industries such as chemical, food, salt, mining, and pharmaceuticals. [We have successful application experience in separating dozens of materials. For model selection, you can communicate with our technical personnel to obtain more detailed information.] The processes of feeding, dehydration, washing, and discharging during separation are completed continuously. With high production efficiency and automation, it is an advanced separation device. Due to its separation principle and structural characteristics, it is highly specific to materials. Material analysis and corresponding tests should be conducted during model selection to determine its applicability and separation performance.

Working Principle

The suspension enters the spiral inner cavity through the feed pipe and enters the drum through the discharge port near the bottom of the conical end of the spiral. Under the centrifugal force field, the liquid phase in the slurry is separated through the sieve installed on the drum wall, while the solid particles are retained in the drum. At the same time, the solid particles in the drum move from the small end to the large end of the drum under the action of centrifugal force and the differential speed between the spiral and the drum. During this movement, as the rotational diameter increases, the centrifugal force rapidly increases. The solids transition from a high moisture content when initially entering to a low moisture content when discharged from the drum, achieving automatic and continuous solid-liquid separation.

2. Specialized filter screen with a thickness of up to 2.5mm, ensuring longer service life.
3. Stepless speed regulation of the drum.
4. Adjustable, stepped, or stepless speed regulation of the spiral differential speed.
5. Simple and reliable lubrication method.
6. Safety protections: speed detection, over-vibration protection, motor overload and overheat protection, zero differential speed protection for the spiral.
7. For high-viscosity materials, a hydraulic differential can be selected for stable and reliable operation.

Schematic Diagram

Technical Parameter Selection Table

Note: Specifications are subject to change without prior notice. Please request drawings during design.

Drum Cone Angle

20°: This standard angle is excellent for separating most materials. Solids slide from the small end to the large end under increasing centrifugal force, requiring minimal thrust from the spiral.

Mechanical Differential Features

1. Key components such as the drum and spiral are made of high-quality corrosion-resistant stainless steel, titanium alloy, or other materials;
2. Drum angles are available in 10°, 20°, 30°, and 40° based on process conditions;
3. Specialized metal filter screen with a maximum thickness of 1.0mm, ensuring longer service life;
4. Frequency conversion control for stepless speed regulation of the drum;
5. Continuous completion of feeding, separation, washing, dehydration, and discharging with high processing capacity;
6. Independent lubrication system with simple and reliable lubrication method and effective cooling;
7. Safety protections with optional configurations;
8. For high-viscosity materials, a hydraulic differential can be selected for stable and reliable operation.

Hydraulic Differential Features

1. Internal curve radial plunger hydraulic differential, compact in size, with output torque 2-3 times greater than mechanical types, providing high thrust torque;
2. Differential speed feedback control with overload alarm output terminals, maximum pressure alarm, and shutdown function;
3. Differential speed adjustable online from 1-30 rpm without stopping, enabling full automation;
4. Automatic differential speed adjustment and power compensation with a wide compensation range, eliminating material blockage and adapting well to material changes;
5. Initial differential speed thrust torque remains unchanged when differential speed is adjusted (easy to achieve low differential speed operation);
6. Slag discharge can be initiated while the drum is stationary, eliminating the need for disassembly and cleaning, and facilitating troubleshooting.