MultiDisc Thermal Processors
Heyl Patterson’s MultiDisc Thermal Processor is a low or medium-temperature processing unit that uses an innovative conduction-convection heat transfer method to indirectly dry and/or cool bulk solids, including minerals, chemicals, pigments, soils, and sludges. Indirect processing offers significant advantages, such as a higher product-to-surface area ratio, very high thermal efficiency, and minimal exhaust gas volumes requiring less costly air pollution control equipment. Our MultiDisc thermal processor features an innovative design that further reduces surface fouling, pluggage, and horsepower consumption, effectively reducing your overall operational costs.
Configurable with meshed discs, non-meshed discs, or a combination of the two. Mesh discs provide enhanced mixing for difficult-to-transport wet solids or those that adhere to hot surfaces and are ideal for batch processing where uniform temperature control is required.
Features & Benefits
- High product-to-surface ratio improves heat transfer efficiency
- Indirect processing produces minimal exhaust gas volumes
- Versatile design allows heat transfer fluids to be circulated in parallel flow patterns
- Angled conveying bars eliminate sidewall by passing or short-circuiting
- Compact size delivers total processing capacity in a footprint that could barely accommodate the drive train of similar thermal processors
- Agriculture /Grains
- Gypsum
- Organic Chemicals
- Ceramics
- Coal
- Metals
- Pigments
- Polyester
- Soda Ash
- Mining & Minerals
Heyl Patterson MultiDisc thermal processors are recommended for countless drying, heating, and cooling applications. Download our MultiDisc Thermal Processor brochure to see more applications.
High Area-To-Volume Processing Ratio
Hollow Disc & Shaft Assembly Design
Multiple discs are permanently attached to the shaft to create a fixed, sealed, self-contained unit. Cooling water, steam, thermal fluid, or refrigerants circulate through the hollow assembly, transferring heat or cooling action to the revolving disc surfaces.
Product flows between and around the discs in the trough and, as a result, is exposed to a very large amount of disc surface area within a relatively small container, resulting in improved efficiency.
Indirect heating provides a higher product-to surface-area ratio for improved thermal efficiencies. It uses minimal exhaust gas volume requiring less costly air pollution control equipment or volatile recovery systems. Inert, oxidizing, reducing, and dehumidifying process atmospheres can be maintained. And fine materials are easily processed without excessive product entrainment in the gas stream.
Built to your unique specifications, or designed by our engineers to exceed your specific application requirements, each Heyl Patterson MultiDisc can be rigorously pilot tested at our Innovation Center & Test Lab before the final design is implemented.
Speak to an expert.
Options & Accessories
- Meshed or non-meshed disc assemblies
- Steam, heat transfer, fluid or electric power systems
- Circulation systems
- Agitation clips & breaker bars
- Electric heating element
- Control systems
Downloads
Processors (MultiDisc & Specialized Systems) FAQs
What materials are best suited for MultiDisc thermal processors?
MultiDisc processors excel with bulk solids that benefit from indirect conduction/convection heat transfer, including chemicals, minerals, agglomerates, and heat-sensitive products.
How does a MultiDisc processor differ from a traditional rotary dryer?
MultiDisc processors use stacked discs to increase surface area for heat transfer without moving belts or screws, enabling more compact designs and tighter temperature control.
Can these processors handle sticky or cohesive materials?
Yes, configurations with meshed discs or gentle agitation promote uniform heat transfer and prevent buildup in sticky or challenging materials.
Are MultiDisc processors suitable for both drying and cooling?
Yes, depending on the configuration and heat-transfer medium (steam, thermal fluid, electricity, chilled fluid), processors can be optimized for either drying or cooling.
What operational benefits do these systems provide?
Advantages include lower exhaust-gas volumes, lower air-pollution-control costs, a compact footprint, and more responsive temperature control than some conventional dryers.
How do I determine whether a processor is more cost-effective than a traditional dryer for my process?
A process evaluation, including moisture content, temperature goals, and energy cost modeling, will identify where a processor’s conduction/convection design yields savings in energy, footprint, or maintenance.