Brunner Hildebrand Offers New Environmental Friendly Technologies for Lumber Dr Kilns
One of the oldest names in lumber drying is focusing on the environmental benefits of its systems. Brunner Hildebrand Enterprises offers global solutions for all kind of problems incurred during the process of drying timber while boasting an ecological focus. It provides a variety of kilns including high-performance vacuum kilns (High Vac Systems) as well as conventional units.
Brunner Hildebrand Enterprises has tackled a number of tough drying applications. For example, it recently demonstrated successful drying results in Australia with local Eucalyptus species such as Tasmanian Oak and Victorian Ash, which have been prone to collapse. In the past it has been considered very difficult to dry these species in one kiln without the usual long air drying cycles and without special reconditioning chambers.
Continuing to innovate, the new High Vac Master vacuum kiln system allows for large dimensions to be quickly dried with high end quality. This unit will dry dimensions such as 38 mm, 50 mm and even 80 mm timber. The secret lies in the new software and the steam generator inside the kiln. This enables the kiln to heat up the timber quickly in a pure steam environment. After heating up the timber, it will be dried down ‘softly’ but quickly in a constant drying and reconditioning process. During one demonstration in Germany, big dimensions of softwood (170 mm) were dried within seven days to an extremely high quality (furniture quality). During this specific process the concrete top layers that prevent deformation were not used.
At another High Vac Master drying center in the Netherlands 100 mm Sapeli tropical hardwood was dried in 15 days without the usual internal checking or cell collapse. These results suggest promising outcomes for green Red and White Oak in thicker dimensions such as 50 mm and 75 mm.
Due to its rectangular design the High Vac vacuum kiln is no longer limited in capacity and can be erected on site like a conventional kiln system. This makes vacuum drying now even more economical and efficient.
The most important advantages of the High Vac drying systems include:
• The ability to dry difficult timbers, even with high initial moisture content.
• Presents even final moisture throughout the whole load. It can dry different species with different diameters and different moisture contents within one load.
• Presents a stress free end product through drying in saturated and super heated steam.
• Has good quality of color, i.e. less discoloration.
• Economical and fast drying (up to 3-5 times faster than in a conventional kiln).
• Saves energy. It has an energy consumption of up to 40% compared with conventional kilns. It is also available with solar heating which results in one of the most energy efficient kilns on the market.
Beyond its vacuum kilns, Brunner Hildebrand has developed its new ECO Triple Plus Low Temperature kiln technology designed for drying softwood lumber and pallets. It is named the Triple Plus because it saves up to 20% heat energy, up to 80% electrical power and up to 30% drying time compared to conventional systems.
The Triple Plus uses a powerful heat exchanger to pre-dry the air entering the unit. This allows for a very dry climate in the kiln right from the start of the process. And that leads to less energy required and faster drying time. The use of optimized hardware in conjunction with the latest energy-saving software makes this possible. PC-controlled systems are easy to use thanks to real-time visualization on the desktop. It also offers remote control and monitoring via the Internet.
The Triple Plus technology has been developed and proven in Europe and is now available in North America.
Even existing dry kilns (all manufacturers) can be retrofitted with ECO Triple Plus system equipment.
Over the past four decades many thousands of Hildebrand kilns have been installed across the world. For more information, call 877/852-6299 and www.bhldrykilns.com.