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Wood drying equipment process

Number of hits:    Update time: 21 / 05 / 12 14:06:05       Source: 13428888166.cn 大香蕉伊在线视频: close branch      Enjoy:
In the wood drying equipment, the drying stage should be operated according to the requirements of the process standard, and the temperature fluctuation should be prevented in the heat preservation stage, and the temperature rise too fast should be prevented in the adjustment of the reference stage.
The preheating temperature is determined according to different tree species and thickness. The initial preheating temperature is generally no more than 45 ℃, most of which are lower than 40 ℃. When preheating, the wood should be heated before entering the drying stage. Spray steam if necessary.

The intermediate treatment is to spray steam into the kiln to adjust the humidity of the air in the kiln. During the drying process, the rate of wood moisture change should be observed and recorded. Operators should enter the kiln to observe whether there are cracks or deformation on the wood surface. If it happens, be sure to record and mark. According to the decrease of wood moisture content and the change of wood surface, steam is injected into the kiln in time. Steam injection time should be guaranteed, but not too long. Generally, the thickness of one centimeter is 2.0h, the intermediate treatment temperature is consistent with the requirements of the reference stage, and the relative humidity is 5 ~ 8% higher than the equilibrium moisture content in this stage.

The balance treatment of wood drying equipment is to eliminate the difference of moisture content of different wooden piles in the kiln, so as to ensure that the moisture content of all wood can meet the requirements when leaving the kiln. The moisture content of most of the probes is high, and a few of them meet the requirements. In order to make all the wood in the kiln pass through the kiln, balance treatment should be carried out. The equilibrium treatment temperature is consistent with the standard requirements, and the relative humidity is required to be 2% lower than the moisture content. The time is until the water content of each probe is uniform.

 Wood drying equipment

At the end of high humidity treatment, it is necessary to eliminate the non-uniformity of wood internal and external thickness. The high humidity treatment temperature of wood drying equipment is equal to the reference stage temperature, and the relative humidity is 4% higher than the moisture content of equilibrium moisture content.
The temperature of the kiln after cooling is relatively high in the late drying stage. In order to prevent hot wood from bursting out of the kiln, the wood should be cooled before it can be discharged from the kiln.
Wood drying equipment refers to the water escaping from the wood, that is, the moisture in the wood is forced to evaporate and escape by manual methods, so as to reduce the moisture content of wood to the level equivalent to the local equilibrium water content, so as to prevent the wood from mildew, erosion by insects and bacteria and cracking and deformation in the process of storage, transportation and use. Wood dryer is a kind of wood drying equipment which can effectively remove wood moisture.
During the normal operation of the dryer, the fuel is completely burned in the combustion chamber to generate heat energy, which is fully absorbed by the drying medium in the drying system to produce a temperature of about 170 ℃. Under the action cycle of the fan, the high temperature air is transported to the drying room to dry the wood through the control system and the conveying system; At the same time, the steam generator on the wood drying equipment can produce a lot of atmospheric steam. According to the requirements of drying process, the steam can be sent to the drying room in time to spray steam and control the humidity of wood. The humidity control system is a stand-alone steam system with a device.
Editor: Lynn
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