Stainless Steel Horizontal Decanter Screw Centrifuge Corrosion Resistance For Sludge Dewatering

Introduction

Centrifugal sedimentation is the working principle of this centrifuge, it can separate two phases (suspended solid liquid and liquid), and three phases (solid-liquid-liquid), solid phase is pushed out by spiral continually; this equipment is a constant and high effective equipment which used in separating solid-liquid.

The centrifuge is a countercurrent horizontal scoll discharge centrifuge used for sludge dewatering. The main engine consists of a drum (stainless steel 2205), a screw (stainless steel 2205+316L), and a differential system. The differential speed is automatically adjusted based on load changes, and the pushing power is automatically compensated to ensure a constant dryness of the solid slag, resulting in a drier solid slag.

Operation principle  

Centrifuge is consist of two rotors, one is drum the other is screw conveyor ( For short spiral). Drum running with High-speed, the drum and slurry will rotate together and by the centrifugal force effect, this centrifugal force is larger than the weight many times, so that solid particles will be separated from the liquid, from the drum axis, then setting on the drum wall, the screw conveyor which located in the drum and rotating at the speed which lower than the speed of drum then push the solid particles to the residue discharge port. Difference speed between outside drum and screw conveyor depends on the speed of the transmission ratio of differential and its rotation speed.

Techniacl parameter  

Detailed product description

Structure  

Adopting a large end feeding design to ensure sufficient retention time for the separated dry sludge, that is, the feeding pipe extends from the straight section of the drum to the middle feeding port. An adjustable weir plate is installed at the large end of the drum to adjust the liquid layer depth inside the drum and ensure the separation effect. The machine has excellent sealing performance to ensure that sludge and sewage do not spill out of the machine and pollute the environment

Features

• All parts coming into contact with the product are made of stainless steel.
• 3-phase AC motor for controlled torque starting via frequency converter
• Approximately 80 to 90 % of the oil is recovered.
• Low personnel costs due to continuous and automatic operation.
• Highest g-force for higher solids output
• Adjustable bowl speed via VFD
• Automatic adjustment of differential speed via VFD
• Two motor drive
• Belts for both primary motor and secondary motor