The wood dryer is specially designed for the drying of sawdust, small wood chips and veneer. It has the characteristics of large drying output, remarkable energy saving effect and low maintenance. The main working principle is: the wood chips enter the wood chip dryer and the spray pipe and the rotary cylinder work together. The material is boiled and fluidized in the cylinder, and the hot air is in full contact with the material to complete the drying. The so-called airflow sawdust dryer refers to the powdered wet sawdust, which is continuously added to the drying pipe by a screw conveyor. In the transportation and dispersion of the high-speed hot gas stream, the water in the wet material is evaporated to obtain a powdery or granular dry product. Mainly composed of air heater, feeder, airflow drying pipe, cyclone separator, fan and so on.
The wood dryer is specially designed for the drying of sawdust, small wood chips and veneer. It has the characteristics of large drying output, remarkable energy saving effect and low maintenance. Mainly composed of air heater, feeder, airflow drying pipe, cyclone separator, fan and so on.
working principle
The wood chips enter the wood chip dryer and the spray pipe and the rotary cylinder work together. The material is boiled and fluidized in the cylinder, and the hot air and the material are fully contacted to complete the drying.
Special hot air (steam) drying equipment for wood, which can dry all kinds of trees, wood of various specifications and various uses, has the advantages of high efficiency, energy saving, safety and reliability, short drying period, good drying quality and low drying cost. It is especially suitable for large, medium and small wood processing enterprises, which are suitable for the export of wood products. HXM series wood drying equipment, in normal operation, the fuel is fully burned in the combustion chamber to generate heat energy, which is fully absorbed by the drying medium in the heat drying system, generating a temperature of about 180 degrees Celsius, under the action of the circulating fan, high temperature airflow The high-temperature hot air is sent to the drying chamber to dry the wood through the control system and the conveying system. At the same time, the steam generating device on the equipment can produce a large amount of atmospheric steam, which can be steamed into the drying chamber according to the requirements of the drying process, and the wood is steamed and conditioned, and the humidity control system is an independent steam system. Comes with a safety device. Saturated wet steam can make the surface temperature and internal humidity of the wood converge in a short time, thus achieving the purpose of drying both inside and outside the wood. For solid and heavy hard and thick wood, intermittent heating drying process can be adopted. It solves the defects of internal crack, end crack and deformation which occur in the drying process of wood, which greatly improves the yield of high quality wood. The wood drying equipment is equipped with a heat recovery system, which greatly reduces the drying cost and shortens the drying cycle. When the moisture content of the wood is reduced to less than 15%, after 6-8 hours of high-temperature dry steaming, all the mites and eggs that are parasitic in the wood can be removed, and the adverse effects caused by the mites are solved, which improves the company. Economic benefits.
Equipment component
The wood dryer uses self-made flammable gas as the heating source and is dried into two parts: the drum part and the serpentine tube part. Roller part: inner drum, outer insulation two layers. The inner drum is equipped with three inner spiral pieces, which can make the drying material evenly move, which is called frying heating, and the serpentine tube part uses the heat source twice, and uses the induced draft fan negative pressure to blow the air. The dry material is pumped into the screw for separation to achieve the drying effect. The existing wood dryer generally uses coal and firewood as heat sources, has high labor intensity, high cost, high heat loss, less than 30% heat utilization, and the original half bucket with a water content of 35% is dried 3 to 4 times. The wood dryer can successfully dry the raw materials with a sweat rate of 35%. Saving electricity by 75% greatly reduces drying costs. The gas of the dryer is sourced from a carbonization kiln, and the methane gas produced by carbonization of the carbonization kiln is used by the dryer. Comprehensive budgetary estimate: the annual drying cost can be reduced by nearly 10,000 yuan.
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