This equipment includes: Vacuum drying container, HF heating system, vacuum zing system, control operation system, cooling cycle system, moisture testing device, Temperature control device, pressure control device etc. matched timber carriage device, track rack, hydraulic system of top pressing timber, alarming device.
- Timber capacity :6m³
- Vacuum degree: 0?-0.09MPa, adjusting according to needs.
- Dry Temperature: ?90??you can set by user.
- Dry Timber species: various of wooden timber
- Initial moisture: dry the wet material, let the moisture to be 30% after natural air dry, drying cost will be more economic.
- Finial moisture: user set it according to needs. The minimum is bigger than 6%.
- HF generator input power: 50KW
- HF generator Frequency :6?13.56MHZ
- Temperature control: Double temperature measurement system- Optical fiber and thermo-couple, It efficiently avoid HF interference for the accuracy of temperature testing, Monitoring and max .limited temperature. 2sets
- Moisture checking: adopt s weight method and the moisture content online detection.
- Safety protection: Spark suppression and smog alarming.
- Container size: ? 1700mm(H)×7000mm(L)
- Available Loading timber size:1000mm(H)×1000mm(W)×6000mm(L)
- Feeding and discharging mode: Auto
- The container is handled by professional chemical anti-corrosion (put 304 stainless steel plate -1.5 mm thickness), to prevent the pollution of the wood. No rustiness.
- The professional antiseptic treatment of chemical (welding 304 stainless steel plate), no rust, preventing the pollution of wood.
Automatic HF vacuum dryer Features:
- PLC automatic control, touch screen and human-machine interface, worker only needs to set the basic parameters, such as drying technology, initial moisture and request finial moisture, automatically control whole drying process.
- Automatically HF tuning, no need operator, fault checking system checks the machine working state, if fault is happened, which will cut off power and alarm fault information.
- Moisture checking timely: moisture checking adopts exclusive weight method, PLC can calculate the accuracy moisture according to timber initial moisture weight with timber weight reduction, which avoid common metal detector checking error problems in electric field. Meanwhile install matched moisture testing meter, which can check the moisture after stop heating.
- Temperature adopts top grade optical fiber checking device: Accuracy, no HF interference, precisely temperature testing guarantees perfect drying effect.
- Intelligent human-machine interface, Equipment parameters and wood parameters display on the touch screen in the process of drying parameters.
High frequency drying equipment, wood timber put in the middle of high-frequency plate ,electric field directly penetrates the timber overall uniform heating, and high frequency only work on moisture, timber itself do not absorb the electric field, so the moisture heats up quickly, classification, due to internal temperature and water vapor pressure, form a pressure gradient inside timber, forcing the moisture discharge to the surface of timber, water vapor into the tank, so the high frequency drying is heated from inside to outside, quick and less prone to cracking and deformation.