Scroll Decanter Discharge Centrifuge For Washing And Dehydration Of Starch

Scroll discharge decanter centrifuge for washing and dehydration of starch

Introduction   

Centrifugal sedimentation is the working principle of this centrifuge, it can separate two phases (suspended solid liquid and liquid) or 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.

Working 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. The two phases with different densities form concentric cylinders, with the lighter liquid in the inner layer and the heavier liquid in the outer layer and discharged through the outlet of the light and heavy phases respectively.

Technogical parameters

Product structure 

Drum: The cylindrical - conical cylindrical rotor is composed of a cone and a cylinder. The aim for designing this shape is to obtain a better separation performance. When drum rotating at high-speed, it will drive slurry rotate, and under the centrifugal force, the heavier solid particles will be separated from the liquid. Cylindrical drum part is to facilitate the clarification of the filtrate (centrifuge), and conical part is conducive to dehydrate the solid material.

Advantages of Juneng Decanter Centrifuge

1.All-round anti-wear protection, wear-resistant parts are equipped to the drum inner wall, slag outlet, outer circle of the slag discharge port, the spiral blade, and the spiral distributing port etc. which are easy to replace on site and greatly reduce maintenance costs.

2.According to the characteristics of the product (processing material)working conditions, optimize the drum length to diameter ratio, speed and drum cone structure.

3.Intelligently adjust the differential speed and torque according to the product concentration and flow changes. When the feed concentration changes during the dewatering process,the centrifuge can intelligently adjust the slip and torque of the drum and screw.
4.Choose a planetary gear differential with heavy load and large transmission ratio.
5.The centrifuge, occupying a small space, is simple to install and debug. This machine is fully sealed operated, which create thegood production environment.
6.The double frequency conversion control is adopted by the main motor and the differential device auxiliary motor to
realize stepless speed regulation, which is applicable to a wide range of materials.

Application area

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