Main Sector of relevance\IRC classification 7. Environment and Safety
7.10 Technology and equipment applied for sawn timber drying and environmentally safe fireproof and preservative wood treatment
Developers’ contact information
State Scientific Institution “The A.V.Lykov Institute of Heat and Mass Transfer of National Academy of Sciences of Belarus”
15 P.Brovka Street, Minsk BY-220072
Summary
Import-replacing technology and equipment for high-quality wood-based materials and modified wood products.
Description
Sawn timber and cylinder-shaped wood is dried in convection type
chamber driers with the use of optimized aerodynamic configuration and drying
technology. Circulated air consumption is reduced by 5 – 7%. As for heat loss
reduction, it amounts to 8 – 10%. At the same time drying and thermal moist
treatment times are also decreased. Drying and heat treatment control logic
applied for the above processes is executed with modern automation and control
equipment. There exists a wide range of programmes (charts) that could be used
to dry wood of various origin and assortment. A complete package of chamber
driers was constructed to provide for drying the total of 200m3 sawn timber at
one loading (Figure 1).
Fig. 1 – The appearance of wood chamber driers and treatment facilities
Due to introduction of liquid fire-retardants and (or) preservative compounds into the treated wood bulk wood modification technology allows a prolonged service life for timber materials. Deep protective wood treatment is done with the use of water-soluble and environmentally safe antiseptic compounds and oil-born wood preservatives, for example, applying oil-in-water emulsion in autoclave under vacuum and pressure. After the preservative treatment wood biostability is increased by 5-12 times as compared to the untreated products. One can also observe a certain improvement of its fireproof and impact resistance properties. The developed type and dimension range of preservative treatment facilities has a one-time loading capacity of 4-30 m3 (Figure 1).
Technology type
Technical advantages and economic benefits
Provides a possibility to produce drying and preservative treatment equipment within the borders of the Republic of Belarus so as to satisfy wood-working industry requirements. Possible import replacing and manufacturing production export.
Technology differentiation and uniqueness
Informational support and existing production capabilities extension is needed.
Context in which technology was identified
Wood drying and preservative treatment technologies were presented at a number of international exhibitions, including “Wood-working-2008” exhibition in Minsk and the National Belarusian exhibition that took place in Krasnoyarsk in 2008, etc.
Technological keywords
Wood, drying, preservative treatment, wood chamber driers, drying charts, fireproof and preservative wood treatment.
Development Stage
Intellectual property rights
Range of applications
Wood-working industry.
Classifier Used at the EU Innovation Relay Centres
Preferable Regions
Practical experience
The drying equipment and technologies are implemented at more than 10 Belarusian enterprises, and the preservative treatment ones – at 3 enterprises.
Environmental impact
Does not exceed values specified for identical technologies.
Type of collaboration sought
Terms and restrictions
According to the contract.
Available technical assistance