FIELD: technological processes.
SUBSTANCE: invention relates to the technique of drying wood, including its valuable rocks. When drying, the heat supply is carried out by means of electric heaters connected to a current source and an alternating voltage source synchronized in frequency. Degree of heating and migration of moisture vapor in the material 1 is controlled by changing the magnitude and frequency of the current and voltage applied to the plates. Heater is made in the form of metal plates 2 with contact bridges, fixed with the help of insulating elements for the purpose of multiple transportation, transportation and installation in a stack. Drying method and the heater ensure uniform heating of the lumber from the Joule losses of electric energy in the plates and the dielectric heating of the liquid from the alternating electric field between the plates.
EFFECT: invention should provide for fast and defect-free drying of wood, and the device can be well integrated into various production lines in sawmills and in the woodworking industry that produce sawn timber.
2 cl, 2 dwg
Title | Year | Author | Number |
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METHOD OF WOOD DRYING | 2012 |
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VACUUM-ELECTROMAGNETIC WOOD DRIER | 1997 |
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RU2133933C1 |
0 |
|
SU56172A1 | |
ELECTRIC HEATER | 1992 |
|
RU2007895C1 |
Authors
Dates
2018-09-18—Published
2017-09-04—Filed