High-frequency vacuum wood dryer is a kind of drying machine with a low temperature in vacuum situation, smaller but much faster than the conventional kilns. It is suitable for all kinds of wood, from veneer/lamina/board to thick lumber, even heavy timber with a large dimension.
For thin pieces like veneer or floorboard lamina, high-frequency vacuum wood drying not only offer a short drying cycle but also eliminates the problem of the curve or shrink. For thick and hardwood, like Merbau, Mahogany, etc. HF wood dryer brings good drying quality with uniform moisture content, free of split or sparks both on the surface and inside of wood, short drying time will meet the customer's demand for production.
The high-frequency electric field is the main power for heating, acting on the wood uniformly. The intensity of the heating depends directly on the moisture content of the wood and the electric field, while the moisture movement depends on the permeability of the wood and internal pressure gradient. In the vacuum situation, the boiling point of water is decreased with decreasing pressure.
It introduces novel and unique sealing device, and is matched with thermal insulation system of excellent effect, thus decreasing the coal consumption of the whole drying system.
Dryer internal structure using a variety of high-lift board combination mode, effectively regulate the drying process and heat distribution, high heat utilization, exhaust gas discharge temperature is low.
Rapid drying moisture reducing from 65-75% to 14-18% in one-time. Pasture temperature is always lower than 50 ℃, dried grass completely retained the nutrients of fresh pasture, bright color, smell fragrance.
Supporting a variety of new energy-saving clean hot air blast stove, fuel can be diesel, gas, coal, wood, wood chips, straw etc. And efficient energy, heating controllable, simple operation, energy consumption decreased by as much as 30%, power consumption reduced by 20%, the operating cost is lower.
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HF Vacuum Wood Dryer Main Technical Parameter List