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Rotary drum dryers for the reuse of wood waste
The recovery and reuse of waste and scrap materials are fundamental components of the circular economy. Within this approach, waste materials are transformed into new raw materials to be used for other production processes. In this way, companies turn their waste into a resource while simultaneously reducing their environmental impact.
In this article, we will focus specifically on rotary drum dryers for the reuse of wood waste. Wood is an extremely valuable material from an environmental perspective, which is why recovering its waste is so important, allowing it to enjoy a second life in the form of various products.
What is meant by wood waste drying
Wood drying – also known as seasoning – is a process through which the amount of water inside the wood is reduced, decreasing its internal moisture and volume.
Wood drying can take place in two ways:
- Natural drying
- Artificial drying
Natural wood drying
This is the traditional wood seasoning method: wooden material is stacked on boards placed outdoors and protected by roofs or open-sided sheds. Atmospheric heat and air then act to remove the moisture contained in the wood. This process requires a very long time because the moisture is removed gradually.
Artificial wood drying
Artificial wood drying is the most modern, safest and most widely used method. It involves the use of kilns and machines specifically designed for drying, allowing the process to take place much faster than with natural drying systems.
For this purpose, RP Engineering designs, manufactures and installs industrial drying systems and wood chippers.
The reuse of dried wood waste
Waste generated from wood processing and wooden packaging can be recovered and transformed into raw material or fuel.
Through the drying process, wood waste can then be used to manufacture new products, allowing the wood to begin a new life cycle. Specifically, the following can be obtained:
- Particle boards made from wood waste reduced into chips
- MDF panels composed of wood fibers bonded with resins and then compressed
- Blocks for pallets
- Biofuel
- Chemimechanical pulp for the production of paper and cardboard
Rotary drum dryers for the reuse of wood waste
Let us take a closer look at one of the artificial drying techniques, specifically the process carried out using the rotary drum dryers designed and manufactured by RP Engineering.
Rotary drum dryers are machines characterized by a very large heat exchange surface, which allows the drying of materials with high moisture content and medium-small particle size. They are therefore the most suitable equipment for the drying/seasoning of wood waste.
How rotary drum dryers work
- The wood waste is fed into the dryer
- The rotating drum movement distributes the wood waste evenly inside the dryer, where it comes into contact with the hot air generated by the burner
- The product undergoes a triple pass inside the rotating drum, during which the dehydration process takes place
- The dehydrated material is finally discharged
Rotary drum dryers: how they are built
RP Engineering designs and manufactures “DX” series rotary drum dryers, composed of the following components:
- Biomass burners
- Loading systems
- Rolling systems
- Transmission systems
- Discharge systems
Rotary drum dryers for the reuse of wood waste: all the advantages
Using rotary drum dryers offers numerous advantages.
- High production capacity
- Flexibility
- Uniform product drying
- High quality of the dried product, maintaining its original characteristics
- Wood sterilization and reduced risk of alterations caused by fungi
- Energy efficiency
- Reliability in terms of guaranteed continuous operating hours
- Low emissions thanks to the use of very low temperatures
- High levels of automation and mechanization, with the possibility of remote control management
Would you like to install a rotary drum dryer for the reuse of wood waste? Choose RP Engineering
Do you own a carpentry workshop, an agricultural company or a business that produces large quantities of wood waste? You can reuse your wood waste by installing a rotary drum drying system.
Choose RP Engineering! For over 25 years, RP Engineering has been designing, manufacturing and installing cutting-edge industrial systems for drying plant-based materials such as wood waste. Contact us by filling out the dedicated form.
We will get back to you as soon as possible to understand your needs and suggest the solution that best suits your requirements. With customers all over the world, RP Engineering offers customized solutions and a complete “turnkey” service. After the installation of the system, we remain available to our customers with dedicated after-sales support services.
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