As a subsidiary of CPEG, additional thermal and dry solids processing and material handling equipment is available to supplement and build out your production line.

Dust Collectors, Wet Scrubbers, Conveyors, Mixers, Drum Dryers, and more.

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Rotary Calciners

Transform materials with precision, efficiency & versatility. Heyl Patterson Rotary Calciners process hundreds of materials that are fine and dusty, sensitive to oxidation, combustible, explosive, potentially contaminating or thermally sensitive. Guaranteeing complete segregation of the heat source and the product through indirect heating, the Heyl Patterson Rotary Calciner is ideal for processing catalysts, chemicals, hydrocarbons, activated carbon, yellowcake and PET flakes, as well as for biomass torrefaction or carbonization.

Rotary Calciner Thermal Processing Equipment

With independent temperature control through heat zones, adjustable retention time, an enclosed rotating shell, and integrated coolers, Heyl Patterson calciners efficiently process materials in many industries.

Features & Benefits

  • Multiple heat zones provide independent control for temperature profiling, such as ramp up, soak, and cool down.
  • Innovative seal designs for hazard mitigation.
  • Custom-designed internal shell components provide maximum heat and mass transfer.
  • Plug flow operation for product uniformity.
  • Adjustable retention time for precise temperature and moisture control.
  • Burners fire tangentially to eliminate localized overheating.
  • Accurate bed temperature control with wireless telemetry for improved processing.

Sample Applications

  • Biomass Conversion
  • Catalysts
  • Ceramics
  • Chemicals
  • Fly Ash Beneficiation
  • Lithium Ore
  • Mining & Minerals
  • Plastics
  • Precious Metals
  • Waste Conversion

Download our Rotary Calciners brochure to see more applications.

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Advantages of Indirect Heating

With indirect heating, delicate materials are quickly processed, without excessive product entrainment in the gas stream. Requirements for emission control or volatile recovery can be reduced. Inert, oxidizing, reducing, and dehumidifying process atmospheres can be maintained.

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Indirect heating also allows for process temperature profiling and eliminates contamination from the furnace exhaust to the material that is processed.

We also offer Fluid Bed Calciners when direct contact with the heating medium is desirable or required.

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Specifications for a rotary calciner can be customized to a customer’s particular application, including:

  • Sizes from 4 inches to 10 feet in diameter and lengths in excess of 100 feet
  • Shell operating temperatures up to 2200 degrees F (1200 degrees C)
  • Specific process atmospheres – inert, oxidizing, reducing, dehumidified
  • Co-current and counter-current material/gas flow designs
  • Multiple heating zone configurations
  • Special materials of construction for high temperature and/or corrosive service

Built to your unique specifications, or designed by our engineers to exceed your specific application requirements, each Heyl Patterson Rotary Calciner can be rigorously pilot tested at our Innovation Center & Test Lab before the final design is implemented.

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Options & Accessories
  • Rotary seals
  • Integral coolers
  • Drive systems
  • High-temperature designs
  • Burner & temperature systems
  • Automatic lubrication systems
Downloads
Featured Resource

This white paper discusses processing with Heyl Patterson calciners, from performance to zonal arrangements for temperature profiling.

Download White Paper
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Integral Cooler

Indirect water-spray coolers can be integrated into the calciner to expedite cooling of the material prior to discharge.

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High Temperature Designs

Special materials of construction and shell designs that withstand material temperatures of up to 2200° F (1200° C) are available.

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Furnace Designs

Split and flanged furnace casing options provides easy access to the furnace interior.

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Custom Feeds & Discharges

Custom feeds and various discharge designs are available based on the application.

Controlled Atmosphere

Sweep air, inertization, oxidation, reaction gas, negative or positive pressure, dust containment vs. prevent oxidation, etc.