Rotary Dryers and Coolers

Rotary Dryer Cooler

Heyl Patterson Thermal Processing Rotary Dryers and Coolers are some of the most versatile rotary dryers and coolers available, and are considered the workhorses of the powder and bulk solids processing industry. Able to effectively handle a broad range of material, including powder and bulk solids and liquid sludges, the Renneburg Rotary Dryer can be specified according to starting and final moisture content, product temperature, drying air temperature, air velocity and retention time of the material – in order to meet and exceed your specific application requirements. Based upon your needs, several different cooling design options are also available, including counter-current air swept, internal and external water-cooled or a combination of air and water-cooled.

 

Specifications for a Rotary Dryer can be customized to a customer's particular application, including:

  • Sizes up to 16 feet in diameter, and in excess of 100 feet in length
  • Inlet gas temperatures up to 2200 degrees F (1200 degrees C)
  • Co-current and counter-current material/gas flow designs
  • Induced-draft, forced-draft and combination air flow systems
  • Variety of control systems available, from burner management only to complete PLC-based process control

Rotary Dryers are the perfect equipment for processing:

  • Biomass
  • Carbon Fiber
  • Fertilizers
  • Industrial Minerals
  • Inorganic Chemicals
  • Paper Pulp

Fluid Bed Dryers and Coolers

Heyl Patterson Thermal Processing manufactures some of the largest and most efficient Fluid Bed Dryers in the world for free-flowing materials such as minerals, chemical, plastics, wood products, grains and waste. Materials are suspended in a rising flow of air or gas using an energy efficient fluidizing method that causes the material to act like a fluid which provides a high rate of heat transfer while gently handling the solids. It also provides lower capital equipment and operating costs as a result of its efficiencies. Offered in three types, Trough-Type Fluid Bed, Circular Type Fluid Bed, and Vibrating, each unit can incorporate a standalone or integral cooler to reduce the material temperature after drying.

 

Specifications for a Fluid Bed Dryer can be customized to a customer's particular application, including:

  • Cylindrical design for back-mix flow, or rectangular design for plug flow
  • Fluidized-media design for sticky, lumpy or otherwise hard-to-handle materials
  • Sizes up to 18 feet in diameter, or equivalent rectangular configuration
  • Inlet gas temperatures up to 2200 degrees F (1200 degrees C)
  • Stainless steel or high-temperature alloy bedplate, or refractory brick dome design
  • Variety of control systems available, from burner management only to complete PLC-based process control

Fluid Bed Dryers are the perfect equipment for processing:

  • Coal
  • Coke
  • Dried Distillers Grains (DDG)
  • Metallurgical Ores
  • Plastics
  • Rubber

Flash Dryers and Coolers

The Heyl Patterson Flash Dryer is used for drying high moisture, temperature-sensitive material, including chemicals, minerals, sludge, food stuffs, plastics, gypsum and wood fibers, with high thermal efficiency. Using the principle of selective processing, this unit ensures that every particle’s resistance time is proportional to its size and weight, resulting in a high quality product that’s free of physical and chemical degradation. We also offer a Rotacurrent and Venturijet design.

 

Flash Dryers are the perfect equipment for processing:

  • Alumina
  • Flour
  • Fluorspar
  • Municipal Solid Waste
  • Polyethylene
  • Sodium Bicarbonate