Working principle of LSSF spiral sand water separator

Working principle of LSSF spiral sand water separator：

The sand water mixture from the sedimentation tank enters the sand water separation tank through the inlet for sand water separation. The water overflows from the overflow tank and the gravel settles to the bottom of the tank. The rotating spiral shaft transports the sand along a 25 ° spiral groove to the top discharge port. During the transportation process, the sand is further separated from water to ensure that the moisture content of the sand at the discharge port is not greater than 60%.

Working principle of LSSF spiral sand water separatorModel representation:

Purpose and scope of application:

The spiral sand water separator is used in the sedimentation tank of sewage treatment plants to separate the sand water mixture discharged from the sedimentation tank.

Structural work engineering:

The spiral type consists of a shaftless spiral, a lining strip, a U-shaped groove, a water tank, a guide plate, an outlet weir, and a driving device.

Sand water mixture from one end of the separator; At the top of the input water tank, heavy components such as sand particles in the mixed liquid will deposit at the bottom of the tank. Under the push of the spiral, the sand particles will rise along the inclined bottom of the tank and continue to move a certain distance away from the liquid surface. After the sand particles are fully dehydrated, they will be discharged into the sand bucket through the sand discharge port, and the water separated from the sand and water will be discharged from the overflow port and sent to the inlet water tank in the factory.

Main technical parameters:

Product Features:

1. The sedimentation device and sand conveying device of the sand water separator are enclosed integrated structures, and have the characteristics of compact structure, light weight, high work reliability, and low maintenance workload.

2. The separation efficiency of the sand water separator can reach 96% -98%, and particles with a diameter greater than or equal to 0.2mm can be separated with a recovery rate of not less than 98%. The removal rate of sand and gravel with a diameter greater than 0.1mm is not less than 80%.
3. Under normal circumstances, the sand water separator matches the performance of the sand pump between the pump type sand settling device and the sand storage room. When necessary, it can also run continuously.

4. The shell, bracket, sand feeder and other important components of the sand water separator are made of stainless steel.
5. The support bearing of the shaftless spiral is waterproof, dustproof, wear-resistant, and automatically lubricated.
6. The design of the inlet and outlet pipe diameter of the sand water separator can prevent blockage by impurities in the water.
7. The configuration of the sand water separator and processing aids is suitable for both continuous and intermittent work requirements.
8. The U-shaped spiral groove is equipped with a replaceable lining body, which has a simple structure, long service life, and is easy to replace.

Outline structure diagram:

Installation and operation:

1. The sand water separator is balanced and placed on the working platform. The bottom must be fixed with expansion bolts to the ground without obvious vibration before it can operate. At the same time, the hopper should be coordinated with other equipment.

2. When using the sand water separator, the reducer must first be filled with mechanical oil to the oil level of 1/2 (see the reducer manual for details).

3. Connect the power, press the button, and observe if the screw rotates in the correct direction. The screw always rotates in the direction of the material outlet.

4. After starting, the staff should pay attention to whether there are hard debris in the materials. Once any abnormal situation is found in the conveyor, it should be stopped immediately to troubleshoot before resuming operation. When the sand water separator is in operation, the protective cover must not be removed.

5. If there is a break of more than 24 hours during the operation of the sand water separator, an operator must be present to observe when resuming work.

Working Principle:

The spiral sand water separator consists of a shaftless spiral, lining strip, U-shaped groove, water tank, guide plate, and driving device. When the sand water mixture is input into the water tank from the top of one end of the separator, the enlarged particles such as sand particles in the mixture will deposit at the bottom of the U-shaped groove. Under the spiral pushing groove, the sand particles will lift along the inclined U-shaped groove bottom, leave the liquid surface and continue to move for a distance. After the sand particles are fully dehydrated, they will be discharged into the sand bucket through the sand discharge outlet, and the water separated from the sand water will be discharged from the overflow outlet and sent to the inlet water tank in the factory.