Handan Metallurgical Engineering & Research Co. Ltd
Rotary Dryers
Rotary dryer is mainly used for drying various mineral materials, and it is a special equipment for drying and dehydrating high-humidity materials.
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Rotary dryer is mainly used for drying various mineral materials, and it is a special equipment for drying and dehydrating high-humidity materials. The heat source of the dryer comes from the combustion device, which can be used in the way of down-flow or counter flow heating. The rotary drum dryer is mainly used in building materials, metallurgy, chemical plant, cement plant for drying of limestone slag, coal powder, slag, clay stone and so on. This dryer is particularly suitable for drying big granules in chemical industry, minerals, metallurgy industry. It can also dry special powder and granule material, such as lightweight calcium carbonate, floridian, magnetic particle, graphite, limestone, sand, coal, slag, clay, wood chips, mining powder etc. Rotary dryers are useful in a variety of industrial applications and choosing the right dryer can enhance the efficiency of your entire materials processing system.The following are the general principles for the selection of drying equipment:
Material properties. Different material characteristics will affect drying efficiency. To ensure that thermal processing meets production targets. When selecting a rotary dryer, consider key material characteristics such as: Water content of raw material, the water content of the air outlet meets the standard, the specific heat of the material being processed, heat transfer characteristics of the material being processed, material granule size, material surface quality (abrasive, corrosive, etc.).
Direct or Indirect Heat application. Direct heat rotary dryers pass a stream of drying air through the drum. The drying air is directed in either a co-current flow (flowing the same direction as the material), or counter-current flow (moving in the opposite direction of the material). Direct dryers are the most common choice for drying bulk solids. If material to be dried cannot come into contact with oxygen, or needs a completely inert environment, an indirectly heated rotary dryer is a choice.
Rotary dryer plant surroundings. Things such as the surrounding atmosphere, air temperature, humidity, and elevation, will affect the dryer’s performance. For example, an increase in elevation means a decrease in the amount of oxygen in the atmosphere, making the air less dense and less combustible. Therefore, the dryer’s fan size may need to be increased to compensate at higher elevations.
A large number of components can be customized to meet most processing requirements. Additional customizations such as percussion systems, sealing options and structural materials can be combined to create an efficient drying solution that suits your unique processing requirements.
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