Batch Pan with Honeycomb Calandria

SED’s specially designed batch pan with honeycomb calandria features a bundle of tubes arranged in a honeycomb pattern without traditional top and bottom tube plates. A central downtake, equipped with SED’s uniquely designed six-blade mechanical circulator, boosts massecuite circulation for uniform crystal growth, higher exhaustion and higher heat transfer within the tubes.

How It Works

Heat Transfer

Steam or vapour condenses on the outside of the tubes, transferring heat to the feed (juice/massecuite) inside the tubes. This causes water to evaporate, concentrating the solution. The honeycomb calandria design enables operation at a lower temperature difference (ΔT), ensuring efficient evaporation and controlled crystallization while minimizing sucrose degradation.

Massecuite Circulation

Efficient circulation is promoted by the large central downtake and optimized honeycomb tube arrangement. This ensures uniform flow throughout the calandria, preventing localized overheating, eliminating stagnant zones, and maintaining consistent.

Evaporation and Crystallization

As evaporation progresses, the liquor becomes supersaturated, initiating and sustaining crystal growth. Continuous circulation keeps crystals uniformly suspended, ensuring homogeneous growth and a narrow crystal size distribution. The generated vapours are either condensed in a condenser or reused through Mechanical Vapour Recompression (MVR), reducing overall energy consumption.

Batch Completion and Discharge

When the desired crystal size and massecuite brix are achieved, the boiling process is stopped. The vacuum is gradually released, and the massecuite is discharged from the pan into crystallizers.

Why Is It Needed?

Improves sugar quality with uniform crystallization and better massecuite circulation.

Increases yield through higher exhaustion.

Efficient heat transfer and low ΔT operation significantly reduce energy consumption.

Handles all massecuite types while minimizing false grains and colour inclusion.

Compatible with low-temperature vapor, allowing seamless integration with MVR systems.

Fully automated system ensures easy operation and low maintenance.

Improves sugar quality with uniform crystallization and better massecuite circulation.

Handles all massecuite types while minimizing false grains and colour inclusion.

Increases yield through higher exhaustion.

Compatible with low-temperature vapor, allowing seamless integration with MVR systems.

Efficient heat transfer and low ΔT operation significantly reduce energy consumption.

Fully automated system ensures easy operation and low maintenance.

Salient Features

Enhanced heat transfer improves crystallization and enables reliable operation with low-temperature vapors, ensuring MVR compatibility.

Improved circulation and uniform saturation reduces conglomeration, prevents false grain formation, minimal colour inclusion and deliver higher massecuite quality.

Large downtake enables efficient circulation.

Reduced massecuite stagnation due to the absence of tube plates, leading to lower washing steam consumption and minimized sugar recirculation.

Optimized design enables integration of larger heating surfaces, allowing for higher-capacity pans within a reduced footprint.

Reduced diameter and prefabricated single piece calandria significantly lower transportation costs and minimizes installation time.

Efficient extraction of non-condensable gases (NCGs) enhances overall thermal performance, ensuring optimal steam utilization and reduced energy demand.

Superior material grades for calandria enhances equipment durability and extends service life.

Suitable for all types of massecuites (Refined, Raw, A, B and C).

Applications Across the Sugar Industry

SED’s Batch Pan delivers reliable performance across diverse sugar production setups:

Raw Sugar Mills

Improved crystal quality and yield.

Refineries

Precise crystallization with minimal color inclusion.

Multi-Effect and MVR Integrated Plants.

Energy-efficient operations

Specialty Sugar Products

Consistent particle size distribution and high-quality output.

Why Partner with SED?

Innovation at SED goes beyond technology - it’s about creating value. Our Batch Pan systems combine patented designs, process expertise, and global support to deliver measurable gains in sugar yield, energy efficiency, and operational reliability. From engineering to commissioning, SED ensures your production standards are consistently exceeded.

Frequently Asked Questions

Revolutionizing Sugar Production. Redefining Standards.

Experience the next generation of sugar crystallization with SED’s Batch Pan with Honeycomb Calandria - engineered for high yield, energy efficiency, and superior product quality.

Talk to Our Process Experts

Download Technical Brochure

Download Batch Pan with Honeycomb Calandria pdf