Wood microwave drying equipment has the following five advantages: Ffp2 Face Mask,Disposable Masks,Ffp2 Medical Mask,Disposable Face Mask Shaoxing Aladdin Enterprise Co.,Ltd , https://www.xhemostat.com
(1) Fast drying speed Because microwaves directly interact with high-frequency microwaves and dried products, the permeability of microwave energy causes both internal and external heating of objects, and internal moisture is rapidly vaporized, and a powerful “pressure pad†for outward diffusion forces The internal moisture quickly spreads out, which speeds up the drying process. Practice has shown that from 8mm thick sheet to 50mm square material, the water content is dried from 35% to 40% to about 20%, and the drying time is only about 10 to 26 minutes, and the speed is at least 20-30 for the traditional steam drying process. Times.
(2) The efficiency of wood microwave drying equipment is extremely high. The process of traditional drying often lasts for several days or even dozens of days. Microwave wood drying can greatly shorten the processing time. Generally, when the wood is treated, the water lifting rate standard is used as the assessment standard. Due to the difference in tree species and wood hardness, the moisture content of the wood after microwave drying is uniform. of. Dry the wood with microwaves without heating. And get a good drying effect. Through the drying test of various types of tree wood, under the same conditions, the following results are obtained:
1 The dehydration rate of all kinds of tree species is about lkg/kW·h or slightly exceeded;
2 The same type of wood has the same thickness and the dehydration rate is also about lkg/kW·h;
3 The same kind of wood has different lengths along the fiber direction, and the effect of microwave drying of wood is also obviously different. The short length of the fiber is high, and vice versa, the water extraction rate is relatively low.
(3) The quality of the wood after drying by the wood microwave drying equipment is very good. The microwave has a strong permeability and heating selectivity when drying the wood. Therefore, the shrinkage of the fibers between the inner and outer ends of the wood is consistent during the drying process. Therefore, the cracking and deformation of the wood is small. However, the traditional drying method will be deformed, cracked, mildewed, deteriorated, etc., which seriously affects the quality of the wood and causes a large amount of wood to be scrapped. Using microwave to dry wood, the utilization rate of wood can be increased by about 10%. Microwave has strong penetrating ability to wood. It has nothing to do with the shape and size of wood. It overcomes the external heat and internal cooling phenomenon caused by traditional heating and drying. (4) Microwave drying wood while killing harmful insects and drying microwave at the same time. Killing harmful insects is due to the strong resonance effect of microwave electromagnetic field energy and water molecules in wood. The harmful aphids and larvae inside the wood are all killed at the same time. When the treatment temperature is 70-80 degrees, it takes only 2-3 minutes.
(5) Energy-saving and high efficiency, saving floor space and improving working conditions. Microwaves directly work on the corresponding materials, so there is no additional heat energy loss. The air in the furnace chamber and the corresponding container have to be heated, so the efficiency is improved and the production is high. The environment is also significantly improved, compared with the traditional steam heating and drying, hot water heating and drying, hot oil heating and drying, furnace gas indirect heating and drying, heat pump dehumidification drying wood can save energy by 30%, thereby reducing production costs. The equipment has a small footprint (about 10-30 m2), while saving production and processing sites. Moreover, it is easy to control the advanced technology. Compared with the traditional method, the device can be used immediately, without thermal inertia, and the operation is flexible and convenient.