SED - Spray Engineering Devices Ltd Limited
Spray Continuous Pan®

Spray Continuous Pan® (SCP®)

SED’s modular design vertical continuous pan with multiple chambers having 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. Automated chamber bypass system enhances the cleaning cycle efficiency as needed, while the overhead storage tank ensures an uninterrupted supply of feed and water to the SCP.

Sugar Mill Modern
How It Works

Working Principle

Step Icon

Heat Transfern

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.
Step Icon

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 concentration across the pan.
Step Icon

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.
Step Icon

Continuous Massecuite Discharge

Massecuite discharge to the crystallizer can be configured either from the bottom via pumping or from upper chambers through gravity flow, based on site conditions and the type of massecuite (A, B, C, or Refined).

Why Is It Needed?

01

Improves sugar quality with uniform crystallization and better massecuite circulation.


02

Increases yield through higher exhaustion.


03

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


04

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


05

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


06

Fully automated system ensures easy operation and low maintenance.


Salient Features

Step Icon

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

Step Icon

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

Step Icon

Large downtake enables efficient circulation.

Step Icon

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

Step Icon

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

Step Icon

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

Step Icon

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

Step Icon

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

Step Icon

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

Step Icon

Integrated state-of-the-art automation system enables real-time data monitoring and efficient control via DCS, eliminating the need for physical presence at the equipment.

Step Icon

Capable of operating across a wide capacity range, with chamber bypass functionality for individual chamber cleaning accessible at the click of a button.

Sugar Factory
How It Works

Applications Across the Sugar Industry

SED’s Spray Continuous Pan® delivers reliable performance for:

Step Icon

Raw Sugar Mills

Continuous high-quality sugar production with minimal color degradation.
Step Icon

Refineries

Consistent crystal growth with uniform massecuite circulation.
Step Icon

Multi-Effect and MVR Integrated Plants

Energy-efficient continuous evaporation and crystallization.
Step Icon

Specialty Sugar Products

Narrow crystal size distribution for premium output.

Why Partner with SED?

At SED, innovation is engineered for operational excellence. SCP® combines patented honeycomb calandria, advanced circulation technology, and automation to deliver measurable gains in sugar yield, energy efficiency, and process reliability. From design to commissioning, SED ensures your continuous sugar operations meet the highest standards of quality and efficiency.

Frequently Asked Questions

Revolutionizing Continuous Sugar Production. Setting New Standards.

Experience next-generation continuous crystallization with SED’s Spray Continuous Pan® - engineered for high efficiency, superior product quality, and reliable continuous operation.