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Introduction to three cylinder sawdust dryer
Sawdust is an organic substance with a water content of 40-50%. It is required that the general water content after drying is about 12%. The main water is free water and biological water. Free water is easy to remove, while biological water is difficult to remove. The new energy-saving wood chip dryer designed and produced by our company is a kind of drying equipment with large processing capacity. It is designed and manufactured according to the specific characteristics of wood chips and the impact of the dryer structure on the output and quality of wood chips. According to the characteristics of sawdust materials, a comprehensive technical transformation was carried out on the dryer on how to improve the filling rate of materials and the retention time of materials in the cylinder. A new combined lifting device and a multi-layer sleeve structure were used to make the materials free of air holes, so that the sawdust can fully exchange heat to get dehydrated and dried to the required moisture.
Features of three cylinder sawdust dryer
Three cylinder sawdust dryer is the mainstream equipment in the production process of biomass particles such as wood particles, which is widely used at home and abroad. The three pass dryer adopts high temperature and fast drying process, equipped with biomass fuel hot air stove, which has high degree of automation and good quality of drying products. The drying system is equipped with safety and fire protection devices, hot air waste heat utilization devices, etc., with large output, low cost, and safe and reliable production.
Principle of three cylinder sawdust dryer
The three-pass sawdust dryer consists of three concentric cylinders. Materials and hot air flow in parallel in the dryer cylinder. The process is: inner cylinder - middle cylinder - outer cylinder. Each layer is equipped with a specially shaped guide plate. The material is fried to a certain height by the plate in the cylinder. Under the action of the earth's attraction and hot wind's attraction, the material runs along the spiral guide channel. The material is fully heat exchanged in the three-layer cylinder. After the material moisture reaches the requirements, it is discharged at the discharge port and transported to the next section.
Technical specification of three cylinder sawdust dryer
Model |
Capacity (t/h) |
Input moisture (%) |
Output moisture (%) |
Total power (kw) |
Total area (m²) |
GT1212 |
1-1.5 |
40-50 |
12-16 (adjustable) |
26 |
5*15 |
GT1415 |
1.5-2 |
32 |
5*18 |
||
GT1615 |
2-3 |
39 |
6*22 |
||
GT2209/3 |
3-4 |
61 |
8*16 |
||
GT2212/3 |
4-5 |
68 |
8*18 |
||
GT2512/3 |
5-7 |
84 |
10*20 |
||
GT2912/3 |
7-10 |
102 |
10*22 |