Hamgam Sanat Eista Ahvaz
What Is a Decanter Centrifuge and How Does It Work?
A Decanter Centrifuge is one of the key pieces of equipment used for solid–liquid separation in industrial processes. By applying centrifugal force, the machine performs continuous and high-speed separation, efficiently dividing the slurry into a clarified liquid phase and a solid phase.
The clarified liquid is discharged through a scroll system, while the solid phase is conveyed to the discharge section.
Principle of Operation
In a decanter centrifuge, the slurry or suspension is fed into a rotating bowl. The centrifugal force generated by high-speed rotation drives solid particles toward the outer wall, while the clarified liquid remains closer to the center.
In modern decanter designs, this force can reach up to 3,000 times the acceleration of gravity (up to 3,000 × g), reducing a sedimentation process that would normally take hours under gravity to just a few seconds.
Types of Decanter Centrifuges
Two-Phase Decanter
Used for solid–liquid separation. The unit has one feed inlet and two discharge outlets — one for the solid phase and the other for the clarified liquid.
Three-Phase Decanter
Designed for the separation of two immiscible liquids (such as oil and water) along with solids. It has one inlet and three outlets, operating based on the density differences between the liquid phases.
Applications
Thanks to its continuous operation and customizable design, the decanter centrifuge is widely used across various industries, including:
• Food and beverage processing
• Pharmaceutical and hygiene industries
• Water and wastewater treatment plants
• Oil, gas, and petrochemical industries
Advantages Compared to Other Separation Systems
• Versus gravitational settling: significantly higher speed and smaller footprint
• Versus hydrocyclones: greater capacity and higher efficiency
• Versus disc-stack or tubular centrifuges: continuous operation and automatic solids discharge
• Versus filter presses: higher throughput and less downtime
Distinctive Feature of the Decanter Centrifuge
Unlike other types of centrifuges, a decanter centrifuge can perform continuous separation and solids discharge without long shutdown periods.
This unique feature enhances operational efficiency and reduces maintenance costs, making the decanter centrifuge an ideal solution for modern industrial separation processes.
Why Choose Hamgam Sanat Decanter Centrifuges?
As a knowledge-based Iranian manufacturer, Hamgam Sanat specializes in the design, production, and complete overhaul of industrial centrifuges, including Decanter Centrifuges and Pusher Centrifuges used in the oil, gas, petrochemical, and mineral industries.
Our centrifuges are engineered to deliver:
🔹 High separation efficiency under demanding process conditions
🔹 Custom-engineered designs tailored to client specifications
🔹 Continuous and reliable performance with minimal maintenance
🔹 Compliance with international standards for safety and quality
With years of proven expertise and a strong commitment to innovation, Hamgam Sanat proudly contributes to the advancement of Iran’s industrial capabilities — combining engineering excellence, domestic self-sufficiency, and global-level quality.