Application of Belt Filter In Sawdust Dehydration

In the wood processing industry, sawdust is one of the main by-products, and its moisture content is usually high. There are many inconveniences in direct use or storage. In order to improve the utilization value of sawdust, such as for the manufacture of fuel particles, board substrates, etc., dehydration becomes a key link. Compared with traditional natural drying or simple mechanical pressing, the belt filter has become ideal equipment for sawdust dehydration due to its high efficiency, continuous and automatic characteristics.

Why Choose a Belt Filter for Sawdust Dehydration?

Sawdust is light in texture, fine in particles, and easy to absorb water, making it difficult to dehydrate. Traditional dehydration methods often have problems such as incomplete dehydration, high energy consumption, and low efficiency. The belt filter effectively solves these problems by continuously pressurizing and gradually squeezing. Its advantages are mainly reflected in the following aspects:

High dehydration rate: A multi-stage pressing design can efficiently squeeze out the free water and part of the bound water in the sawdust, and the final moisture content can be greatly reduced.
Large processing capacity: Suitable for mass production needs, stable operation, continuous work, and improved overall production efficiency.
Continuous operation: The belt filter can achieve continuous operation with high filtration efficiency.
Low energy consumption: Compared with hot air drying and other methods, the belt filter relies mainly on mechanical pressing, which greatly reduces energy consumption.
Easy operation: It adopts automatic tensioning, an automatic deviation correction system, and an automatic cleaning system, which is convenient for operation and maintenance and reduces labor costs.

Working Process of Belt Filter in Sawdust Dehydration

Feeding: The initially collected sawdust is evenly fed into the belt filter through a screw conveyor or pumping system and evenly spread on the belt.
Gravity dehydration area: Under the action of gravity, the sawdust naturally removes some free water to prepare for subsequent pressing.
Low-pressure pre-pressing zone: Through light pressing, further moisture is removed while keeping the sawdust structure intact.

High-pressure pressing zone: Sawdust is repeatedly pressed between multiple sets of rollers to efficiently squeeze out deep moisture.
Discharging: The dehydrated sawdust is discharged from the discharge port and can directly enter the subsequent fuel pellet-forming machine or other processing equipment.

Summary

In the context of the current wood processing industry’s increasing requirements for comprehensive resource utilization and energy conservation, and consumption reduction, the application of belt filters in sawdust dehydration has shown great advantages. It not only effectively improves the usable value of sawdust but also saves operating costs for enterprises and promotes green production.

Application of Belt Filter In Sawdust Dehydration