The belt itself usually has two layers; one provides linear strength and the other comes into contact with the substance it is transporting. The belts are typically made of rubber, plastic, mesh, cotton or silicone. Read More…
Leading Manufacturers
Carrier Vibrating Equipment, Inc.
Louisville, KY | 502-969-3171Carrier is a manufacturer of high quality dryers in addition to many other related products, including coolers, screens, air knife separators, spiral elevators, feeders & conveyors.
Dürr Systems, Inc.
De Pere, WI | 920-336-5715Dürr Megtec provides customized systems for: regulatory compliance; improvement in working environment and in neighbor relations by reducing odor from industrial processes and helping to reduce greenhouse gas emissions and process energy management.
Baker-Rullman Manufacturing, Inc.
Watertown, WI | 920-261-8107Established in 1980, Baker-Rullman Manufacturing, Inc. is a leader in the engineering, design, and fabrication of rotary drum dryers, modular steel bins and hoppers, structural steel, feed and seed mill systems, and custom metalwork. At Baker-Rullman Manufacturing our team of experienced, knowledgeable engineers are ready to get your project off the ground. With more than 30 years of project management experience, we can develop custom designed turn-key solutions to meet your needs!
FEECO International, Inc.
Green Bay, WI | 920-468-1000Since 1951, FEECO has designed and manufactured both direct and indirect rotary dryers for a variety of industries around the world. All dryers are customized to fit the unique processing requirements of the material, with material testing/process development assistance available, in addition to post-sale support including inspections, parts replacement, and more.
Heyl Patterson Thermal Processing
Carnegie, PA | 412-788-9810For over 125 years, Heyl Patterson has custom-engineered thermal processing solutions that are trusted in dozens of industries worldwide. We specialize in high quality drying equipment, such as Rotary Calciners, Rotary Dryers, Fluid Bed Dryers, Flash Dryers, Disc Dryers, Sludge Dryers, Conduction Dryers and Soil Remediation Units. Our pilot plant testing lab helps determine the best technologies and equipment for any application, and we support our clients for the life of their equipment.
Conveyor Dryers - Carrier Vibrating Equipment, Inc.Wet materials are carried through conveyor dryers on conveyor belts at the appropriate speed and are dried right on the belt. Conveyor dryers can handle unique shapes and particle sizes including granules, gels, pastes, flakes, slurries, solids and large items. The conveyor belt can be changed to accommodate the material; for example, wheat germ would travel on a solid rubber belt whereas strips of seaweed could be dried on a metal mesh belt for maximum heat absorption.
Conveyor dryers are almost always continuous dryers because the looped belt does not require any stoppage time for loading or set-up; products can be placed on the belt at one end, travel through the dryer and then removed at the other end. This process is beneficial for many industries and has applications in the food, agricultural, apparel, lumber and chemical industries, setting wet ink on screen-printed apparel, curing treated lumber, turning wet paste into dry grains and drying paper.
Though conveyor dryers typically use the belts themselves as drying surfaces, there are other options. Some belts are equipped with hooks for items that cannot be in contact with a flat surface because they require coating. The items hang from the belt and are dipped or sprayed in the finish before entering the dryer. Most dryers are rectangular and made of a strong metal like stainless steel.
The conveyor belt runs through the center, and inside the housing are the heat sources directed towards the belt. The size and shape of conveyor dryers varies depending on its application. For screen-printing, a 52 inch conveyor belt is sufficient to cure ink on a t-shirt while other materials take days to travel through a dryer hundreds of feet long. Another factor is what kind of method is used to achieve evaporation and remove moisture.
The most common way is an air dryer in which hot air comes into direct contact with the substance or items. Infrared dryers use thermal energy from a certain wavelength to dry from the inside out, and fluid bed dryers require a belt with a permeable surface to support the materials as heated gas fills the space. These main methods of drying can be used in combination with a conveyor belt to eliminate batch drying and speed up the process.