1、 Product Introduction
The SLF spiral sand water separator is suitable for sedimentation tanks in sewage treatment plants (stations) and is an equipment used in sewage treatment to treat sand water mixtures.

2、 Working principle
The sand water mixture is input into the water tank from the top of one end of the separator. The heavier particles in the mixture, such as sand particles, will settle at the bottom of the groove and be pushed by the spiral blades. The sand particles are lifted along the inclined U-shaped groove bottom, and continue to move a certain distance after leaving the liquid surface. After the sand particles are fully dehydrated, they are discharged into the sand bucket through the sand discharge port, and the water separated from the sand is discharged from the overflow port to achieve the separation purpose.
In addition, a cylindrical cyclone pre separator can be installed at the inlet of the sand water sand water separator. Sewage enters the vortex along the tangent direction of the cylinder, causing sand particles to settle and enter the spiral separator. The overflow liquid returns to the sedimentation tank or grid well, playing a role in pre settling sand and adjusting the water volume. The separation effect of the spiral sand water separator is achieved.

3、 Product Features
1. The separation efficiency can reach 96-98%, and particles with a diameter of ≥ 0.2mm can be separated;
2. Adopting shaftless spiral and waterless bearings for easy maintenance;
3. Compact structure and light weight;
4. The key component of the new transmission device, the reducer, is an advanced shaft mounted type that does not require a coupling and is easy to install and align;
5. The lining strip is of quick installation type, easy to replace;
6. The axial position of the spiral is adjustable, making it easy to adjust the safety clearance between its tail end and the box wall.

4、 Technical parameters

Parameter model	SLF-260	SLF-320	SLF-350	SLF-420
Processing capacity L/S	5~12	12~20	20~27	27~35
Electric motor power kW	0.37		0.75

5、 Outline schematic diagram