Overview

Decanter centrifuge is the mechanical equipment used for continuously separation the materials in the suspension with density difference, by the principle of centrifugal settling. The basic principle is the drum and the spiral feeder rotate in the same direction but with a certain speed difference; The material is led into the feeding spiral inner cylinder via the feeding pipe and after speeding up, enters the drum; Under the action of the centrifuge force field, the relatively heavier solid-phase material deposits on the drum wall forming the residue layer; The solid-phase residue is continuously pushed by the spiral feeder to the conic end of the drum and after dehydration in the drying area, is discharged under full-speed running. It enjoys such features as compact structure, continuous operation, smooth running, strong adaptability to the separation material, large handling capacity, convenient maintenance, etc.

Working principle

The feed suspension is introduced through an inlet pipe into the feed zone of the conveyor where it is accelerated and directed into the interior of the bowl. The settled solids are conveyed axially towards the small end of the bowl by means of the screw conveyor, which rotates at a slightly different speed than the bowl. On the way to the discharge ports the solids are lifted out of the pond up along the dry beach. The solids are finally discharged from the bowl through the discharge ports into the collecting chamber of the casing that surrounds the bowl. From there the solids are removed by gravity through the outlet funnel. The liquid phase forming a hollow cylinder due to the centrifugal force, and flows towards the large end of the bowl. There the liquid overflows adjustable plate dams into the centrate chamber of the casing and is discharged by gravity.

Structure diagram

1. Design chart

2. Schematic diagram

3. Physical illustration

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
• Bowl speed is adjustable via VFD to obtain the required G-force for optimized separation
• Pond depth in the bowl is adjustable for optimized balance between liquid clarity and solids dryness
• Conveying speed is adjustable for optimized balance between liquid
• Low personnel costs due to continuous and automatic operation.
• Highest g-force for higher solids output
• Automatic adjustment of differential speed via VFD
• Two motor drive
• Belts for both primary motor and secondary motor

Parameter

The bowl, conveyor, inlet tube, outlets, cover and other parts in direct contact with the process media are all made of stainless steel. The discharge ports, conveyor flights and feed zone are protected with materials that are highly resistant to erosion. The frame is made of mild steel with an epoxy enamel finish.

Application

After sale serivce

1. After-sale Service Team: Six Experienced engineers, the team is expanding

2. Installation: We can arrange engineers to install machines in customer's factorys

3. Maintenance: Reply will be given within 48 hours once customer tell us any malfunction happened, we can also arrange engineers to your factory to maintain machines.

4. Training: We can train in customers' factory& our factory, training in our factory is for free.

5. Warranty: One year since the date og delivery. If there is any wearing part be broken within the warranty and isn't caused by improperly operation, we would offer the new parts for free.

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