Desolventization Toaster (DT)
Multi-Tray Continuous Desolventizer Toaster systems engineered to strip solvent completely from extracted meal while preserving its quality.
Desolventization Toaster (DT)
Complete Meal Conditioning & Recovery
Super Techno Engineers is a leading Desolventizer Toaster Manufacturer and trusted DT Manufacturer in India, building the equipment that removes every trace of solvent from extracted meal after it leaves the extractor. The Desolventization Toaster (DT) is one of the most critical pieces of equipment in a solvent extraction plant, since meal leaving the extractor still carries a significant amount of hexane, and this solvent has to be recovered both for safety and for economic reasons.
As a specialist in Desolventizer Toaster for Solvent Extraction Plant applications, we design our units as a proven Multi-Tray Desolventizer Toaster, built on a DTDC Desolventizer Toaster arrangement that combines desolventizing, toasting, drying, and cooling in one continuous flow. Whether you need a Continuous Desolventizer Toaster for a large scale plant or a Steam Sparge Desolventizer Toaster matched to a specific feedstock, Super Techno Engineers builds each unit around your plant's actual meal flow rate and moisture requirement.
Multi-Tray Steam Stripping Design
A Desolventization Toaster works by moving wet, solvent-laden meal down through a stack of trays, each performing a different job as the meal descends. As a Multi-Tray Desolventizer Toaster, the upper trays use indirect steam heating through a jacketed surface to gently warm the meal and begin driving off surface solvent, without applying live steam too early in the process.
As the meal moves further down, our Steam Sparge Desolventizer Toaster design injects live steam directly into the meal bed on the sparge trays. This direct contact between steam and meal strips out the remaining bound solvent efficiently, since live steam penetrates the meal bed far more effectively than indirect heating alone at this stage.
In the lower section, following the DTDC Desolventizer Toaster principle, the meal passes through drying and cooling trays that bring moisture content down to the required level and cool the meal before it reaches the conveying system, protecting both meal quality and downstream equipment.
Rotating sweep arms on each tray keep the meal bed moving evenly across the tray surface, preventing dead zones where solvent could remain trapped, and ensuring uniform residence time across the entire cross-section of the tray.
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check_circleIndirect heating trays for gentle initial solvent removal.
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check_circleLive steam sparge trays for thorough solvent stripping.
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check_circleIntegrated drying and cooling trays in one continuous unit.
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check_circleRotating sweep arms for even meal movement and no dead zones.
How the DT Fits Into Your Plant
A Continuous Desolventizer Toaster does not work alone. It connects directly to the equipment before and after it, and its performance affects both solvent recovery and final meal quality:
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arrow_forwardFrom the Extractor Wet meal carrying residual hexane is fed continuously into the top tray of the DT from the extractor discharge, maintaining a steady, uninterrupted flow into the toaster.
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cloudVapor Recovery Solvent vapor and steam driven off the meal are drawn off and routed to the condenser system for solvent recovery, working closely with your plant's Vapor Economizer and condenser equipment for maximum efficiency.
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conveyor_beltTo the Meal Handling System Dried, cooled, and desolventized meal exits the bottom tray and moves to grinding, storage, or bagging, arriving at a moisture and temperature level suited for safe handling and storage.
Each of these connection points is considered during design, since a Desolventizer Toaster for Solvent Extraction Plant use only performs well when it is properly matched to the extractor capacity feeding it.
Heavy-Duty Structural Integrity
A Desolventization Toaster (DT) operates continuously with steam, hot meal, and solvent vapor all present inside the same vessel, so material selection and fabrication quality directly affect both safety and service life. The tray shells, cones, and outer casing are fabricated from heavy-gauge mild steel or stainless steel, braced to handle the weight of meal and steam pressure without flexing or distortion over years of continuous operation.
The central shaft and sweep arm assembly are built from high-tensile steel, engineered to rotate continuously under load without bending or excessive wear, even while moving dense, hot meal across each tray around the clock.
We also stock genuine Desolventizer Toaster Spare Parts, including sweep arm blades, tray seals, steam sparge nozzles, and shaft bearings, so a worn component can be replaced quickly without an extended shutdown of your extraction line.
Operational Capabilities
Proven Desolventizing Efficiency
Multi-stage steam stripping reduces solvent content in meal to a minimal, safe level.
Built to run non-stop alongside your extractor without performance drop.
Sealed tray design ensures completely leak-free hexane and steam vapor containment.
Engineered Features
Key Equipment Features & Controls
Upper trays heat the meal through a jacketed surface, gently driving off surface solvent before live steam is introduced. This staged approach protects protein quality and avoids shocking the meal at the entry point.
Our Steam Sparge Desolventizer Toaster design injects live steam directly into the meal bed on the lower trays. Direct steam contact penetrates dense meal far more effectively than indirect heating alone, stripping out bound hexane thoroughly.
Sweep arms on every tray keep the meal bed moving evenly across the full tray surface. This prevents dead zones where solvent could stay trapped and ensures uniform residence time from centre to edge.
Meal bed height on each tray is monitored and controlled so residence time stays consistent even when extractor feed rate fluctuates, giving stable residual solvent levels round the clock.
Tray shells, cones, and shaft seals are built for completely leak-free containment of flammable hexane vapor and steam, with the unit running under slight negative pressure for safe continuous operation.
Following the DTDC Desolventizer Toaster principle, the bottom section dries and cools the meal in the same continuous unit, so meal reaches the conveying system at a moisture and temperature level fit for safe storage.
A geared motor driven high-tensile central shaft rotates continuously under full meal load without deflection or excessive wear, backed by readily available Desolventizer Toaster Spare Parts.
Tray-level sight glasses and temperature points let operators verify meal movement and steam performance without opening the vessel or interrupting the extraction line.
Technical Specifications
Standard Specifications
Comprehensive technical parameters for our desolventizer toaster systems. Custom configurations are available upon request.
| Parameter | Description / Value |
|---|---|
| Equipment Type | Multi-Tray, Continuous DTDC Design |
| Application | Solvent Stripping, Toasting, Drying, and Cooling of Extracted Meal |
| Heating Method | Indirect Steam Jacket and Direct Steam Sparge |
| Processing Capacity | Matched to Extractor Feed Rate (50 TPD to 1500+ TPD) |
| Material of Construction | Carbon Steel / SS 304 (Contact Parts upon request) |
| Operating Pressure | Slight Negative Pressure (Vapor-tight operation) |
| Drive Mechanism | Geared Motor Driven Central Shaft with Sweep Arms |
| Number of Trays | Multi-Tray Configuration (as per application) |
Implementation Protocol
How We Work
As a leading Desolventizer Toaster Manufacturer, our engineering teams design every DT to match your extractor's feed rate and meal characteristics, ensuring thorough solvent removal and consistent meal quality.
Feed and Moisture Analysis
We evaluate the meal flow rate, oil content, and moisture level coming from your extractor to determine the correct tray count, diameter, and steam requirement.
Steam and Tray Design
Our engineers calculate the balance between indirect heating trays and live steam sparge trays needed to strip solvent thoroughly while protecting meal quality, following the DTDC design principle.
Fabrication & Testing
The tray shells, sweep arms, and central shaft are fabricated, assembled, and pressure tested before dispatch. Once cleared, the DT is shipped and integrated into your extraction plant, with our team supporting commissioning.
Key Advantages
Why Choose Super Techno Engineers
True Multi-Tray DTDC Design
Our Desolventizer Toaster combines indirect heating, steam sparge, drying, and cooling in one continuous unit, not a simplified single-stage design.
Years of Experience as a DT Manufacturer in India
Our designs reflect real operating conditions across solvent extraction plants processing a wide range of oilseeds.
Matched to Your Extractor Capacity
Tray count, diameter, and steam rating are sized based on your plant's actual meal flow rate, not a fixed standard unit.
Effective Steam Sparge Desolventizer Toaster Performance
Direct steam contact ensures thorough solvent stripping even from dense or high-moisture meal.
Vapor-Tight, Safe Operation
Sealed tray design keeps flammable solvent vapor and steam fully contained during continuous operation.
Desolventizer Toaster Spare Parts Always Available
Genuine sweep arms, seals, nozzles, and bearings are stocked, so a worn part does not mean prolonged plant downtime.
Case Studies & Endorsements
Industry Testimonials
"Before installing this Desolventization Toaster, our meal was carrying more residual solvent than we were comfortable with, and we were losing hexane at this stage of the process. After upgrading to this Super Techno Engineers DT, our meal now comes out consistently desolventized, and our overall solvent recovery has improved noticeably."
Equipment Installation Video
Live Plant
Live Plant Commissioning
Continuous DTDC run in real extraction facility
Support & Information
Frequently Asked Questions
A DT removes residual solvent from extracted meal using a combination of indirect steam heating and direct steam sparge, while also toasting, drying, and cooling the meal to a level suitable for safe storage and handling.
DTDC refers to a Desolventizer Toaster Drying Cooler design, where solvent stripping, toasting, drying, and cooling all take place within one continuous multi-tray unit, rather than requiring separate equipment for each stage.
Indirect heating on the upper trays gently removes surface solvent without shocking the meal, while live steam sparge on the lower trays penetrates the meal bed to strip out remaining bound solvent thoroughly. Using both stages together gives more complete and efficient solvent removal.
Yes. We size the tray count, diameter, and steam requirement based on your extractor's actual feed rate and the moisture and oil content of your meal.
The tray shells and central shaft assembly are usually built from Carbon Steel or Stainless Steel (SS 304), chosen based on your process requirement and meal characteristics.
Yes. We stock genuine Desolventizer Toaster Spare Parts, including sweep arm blades, tray seals, steam sparge nozzles, and shaft bearings, so a worn component can be replaced quickly without an extended plant shutdown.