How to reduce the skill of the tumble dryer can be explained from the following points:
The first point: low noise, energy saving, fast discharging speed, dust and sawdust separated, is the export of granular products, special dryer;
The second point: the use of homemade combustible gas as a heating source. Drying into two parts: the drum part and the serpentine tube part. The uniform drying of the drying material is called frying heating, the secondary use of the heat source of the serpentine tube part, and the drying material is pumped into the screw by the negative pressure of the induced draft fan to separate to achieve the drying effect. The extruded pellets have a temperature between 55 ° C and 65 ° C and must therefore be dried and cooled prior to packaging. In view of its large particle size, a box dryer is used, which mainly uses cold air to pass through the surface of the material to achieve the purpose of drying and cooling. The material is in a static state during the cooling process, so it is necessary to pay attention to the choice of the relative flow direction of the air and the material to achieve a uniform cooling effect;
The third point: Today's dryers generally use coal and firewood as heat sources. The labor intensity is high, the cost is high, the thermal efficiency is high, the heat utilization is less than 30%, the raw material with the water content of 35% is usually dried 3 to 4 times, and the gas drum dryer can dry the raw material with the moisture content of 35%. Successfully, 75% of electricity saving greatly reduces drying costs.