Belt dryer BTL for sawdust
in Austria
Dryer type: BTL 1-3000-27
Dryer output capacity:
sawdust: 5.0 t/h from 50% to 10%
Belt dryers enable powerful and energy-efficient drying of sawdust and other potential biogenic raw materials. After drying, pelleting can be carried out in pellet presses. The fully automated drying process guarantees homogeneous and targeted drying. Thanks to intelligent energy concepts and efficient technologies such as RecuDry® technology, we ensure low operating costs and the lowest possible CO2 emissions.
Interested? Then feel free to use the contact form or give us a call.
The finiteness of fossil raw materials became clear at the latest since the oil crisis of the 1970s. As a result, initial efforts began to bring wood into a manageable, high-energy form that is as comfortable to use as oil or gas. The first automated pellet stoves were developed in the 1980s and since the 2000s the pellet industry has been experiencing decent growth and making a significant contribution to climate protection. Wood pellets are not only used to heat buildings, but can also replace oil, gas and other fossil fuels in industrial boilers or burners. An example: The development of "black pellets" – pellets made of torrefied material – enables further use as coal substitution in blast furnaces in the steel industry.
Classic wood pellets consist of wood chips or sawdust from sawmills. The use of these remnants of the wood industry is obvious and the material is already available in a relatively homogeneous form. This makes drying and pelleting the two decisive process steps in pellet production.
Through further process steps such as comminution and torrefaction, other residual materials can also be used for pellet production. These pellets are specially developed for industry and often contain mixtures of different raw materials:
If you are looking for more information on predrying before pyrolysis and torrefaction processes, also check out the biocarbon industry.
Whether sawdust or alternative renewable raw materials – the water content of the raw material almost always needs to be reduced. This reduces the mass and increases the calorific value of the pellets.
Belt dryers from stela Laxhuber can be individually adapted to the drying product and the desired throughput:
When selecting and dimensioning the optimal drying system, stela draws on decades of practical experience. This is supplemented by an in-house pilot plant in which new drying goods are tested and analysed. The results flow directly into the individual design and construction of the systems. In this way, we ensure that we always deliver the optimal drying system.
Wood pellets have a high energy content, so that the energy required for their production is comparatively low. In this way, they make a valuable contribution to climate protection – even if their production is energy-intensive. Nevertheless, we optimise our drying systems for the lowest possible energy consumption. We rely on different types of heat recovery, with our patented RecuDry® system, even recovering some of the latent heat from exhaust air. The heat that has previously flowed into the evaporation of water is used for fresh air preheating through condensation in a condensation module.
We not only optimise the efficiency of the drying systems, but also develop holistic energy concepts in cooperation with our customers. The aim is to find the most cost-effective and environmentally friendly solution for heating the dryers. The use of various waste heat sources plays a major role in this. Thanks to the low temperature level of our drying systems, the residual heat of many processes, e.g. from:
can be easily integrated and used. This increases efficiency and reduces costs and emissions.
Low temperature, continuous dryer, circulating dryer – not sure what’s the best choice for you? Our experienced colleagues will be happy to help you find the best solution for your product. Please feel free to contact us without obligation.
Telephone +49 8724 899-10
Email sales[at]stela.de