Sawdust dryer is playing an important role in the field of biomass energy. It is mainly used to dry sawdust, reduce the moisture content in sawdust, and improve the quality and subsequent use performance of sawdust. The main structure of the sawdust dryer consists of: heating system, transmission system, drying system, dust removal system, control system and so on.
The heating system is the main power source of the sawdust dryer. It generates high temperature hot gas by burning fuel (such as coal, natural gas, biomass fuel, etc.). The hot gas is transported to the drying system to raise the required heat for the drying process. If biomass fuel is used, the fuel is fully burnt in the combustion chamber, thus releasing a large amount of heat energy. This causes the air around the combustion chamber to rise rapidly, creating a high temperature hot air stream.
The drying system is the core component of the sawdust dryer. Sawdust completes the drying process in the drying system. After the high temperature hot airflow enters the dryer drum, the sawdust entering from the feeding port is fully contacted. Due to the heat transfer, the heat from the high temperature hot air is transferred to the sawdust, so that the moisture in the sawdust starts to evaporate. The drying drum usually keeps turning over, thus fully drying the sawdust. The sawdust is heated evenly in the drum, avoiding localised overheating or incomplete drying. The constant turning of the drum pushes the sawdust to move slowly inside the drum. The sawdust advances from the inlet to the outlet. It can prolong the residence time of sawdust in the drying drum. Ensure the drying effect.
The ventilation system mainly plays an auxiliary role in the whole drying process. It constantly introduces fresh air into the dryer, raises sufficient oxygen for fuel combustion, and ensures the stable operation of the heating system. It removes the water vapour and exhaust gas produced in the drying process in time. Ventilation system is to remove the water vapour and waste air from the dryer through air ducts and fans and other equipments. It maintains a good drying environment inside the sawdust dryer.
The control system can precisely regulate the whole drying process. The operator can set the drying temperature, drying time, feeding speed and other technical parameters through the control system. The control system will automatically adjust the operating status of the heating system, ventilation system and other parts according to the set parameters. If the temperature setting of the sawdust dryer is lower than the set value, the control system will automatically increase the supply of fuel and raise the temperature of the hot airflow. If the drying time reaches the set value, the control system will automatically control the feeding and discharging devices. Thus stopping the drying process.
Sawdust dryer with its unique wage principle and advantageous features. It plays a widely used in the biomass energy industry. Improving the quality and production efficiency of sawdust plays an important role. If you want to get sawdust dryer quotation, welcome to contact us.
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