Selection of wood drying room


 drying room

The quality of the drying room can be measured by technical and economic performance. But technical and economic performance is not the only basis for choosing a drying room. Different types of drying rooms have different applicability, which must be determined according to the scale of the enterprise, energy conditions, characteristics and quality of the wood to be dried.

Selection of Drying Room Types

Continuous and natural circulation drying rooms are generally not used due to their own shortcomings and limitations. The most commonly used is the periodic forced circulation drying room.

At present, the commonly used periodical forced circulation drying chamber adopts high-temperature resistant motor direct-connected fan and rolling-type bimetal finned tube heater. The shell and indoor equipment have good anti-corrosion performance (basically no ferrous metal is used), and the drying process can be automatically controlled. drying room. This type of drying room is produced by a professional factory, and the product quality is guaranteed, so it should be the first choice if possible. As far as the room type is concerned, the large drying room should use the upwind type. If the wood to be dried is a 2m or 3m long whole side board, there is a forklift in the factory, and the forklift is used for loading and unloading; if the wood is long or the length is not uniform, then Loading and unloading with rail car. For small and medium-sized drying rooms, the end fan type, the fan type in series up and down or the front and back series side fan type and the side down fan type are better. The side fan type is only suitable for single track drying rooms with small capacity. If the hard broad-leaved wood with large batches is dried, it is best to use combined drying, that is, to build a large pre-drying room and several upwind-type rail car loading and unloading drying rooms. Pre-dry to a moisture content of about 20%, and then dry in a conventional drying room.

Selection of Drying Room Specifications

In order to avoid the loss of circulating air flow from affecting the drying effect, the material stack in the drying room must be filled according to the loading capacity, leaving no space. In addition, the process requires that the tree species and thickness of the wood to be dried in the same room are the same, and the initial moisture content is basically the same. Therefore, the size of the drying room must be selected according to the complexity of the wood species and specifications (thickness) and the turnover. Generally speaking, the capacity of the drying room is large, the energy utilization rate is higher, and the equipment investment and drying cost per unit output are relatively small. However, the flexibility of the large drying room is poor. If the tree species, specifications and moisture content are complex, and the batch of similar wood is small, it may cause downtime or insufficient load, which will not only cause greater waste, but also have a negative impact on the drying quality.

When choosing the size of the drying room, you should also understand the size of the airflow passing through the material pile, which should not exceed 5m, so as not to affect the drying uniformity. Now some drying equipment manufacturers in order to reduce the cost of the drying room. It is not advisable to use land to compare prices to attract users, and one-sidedly pursue large capacity, so that the size of the airflow passing through the material pile is as long as 7-9m, resulting in uneven drying and long drying time.

Fujian Zhangping CHIQIN Technology Co. Ltd, is professional in wood drying over 20 years, covering Aluminum Wood Drying Kiln, Heat Pump Wood Drying Kiln without heat source, Veneer Drying Equipment, Food Drying Kiln, Kiln Components etc with high quality and reasonable price. Hope to establish business relationship with you!

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