ال آلة تجفيف نشارة الخشب is an airflow dryer machine designed for small-sized biomass materials, including sawdust, rice husks, wood chips, and crushed branches. Under the specified operating conditions, it can reduce the moisture content of sawdust or rice husks from 35% to approximately 10%.
Our airflow drying machine operates within a hot air temperature range of 180–250°C and is suitable for materials with a particle diameter below 3 mm and a length below 5 mm. It helps prepare raw materials for wood pellet production, biomass briquette forming, and charcoal processing.
What are the characteristics of an airflow dryer?
The airflow drying machine offers several practical advantages for biomass processing businesses.
- Fast drying through hot air contact: The sawdust drying machine uses hot air to carry small particles through the pipeline. This allows the hot air to contact the material during transportation, supporting rapid moisture removal.
- Suitable for different biomass materials: It can process sawdust, rice husks, small wood chips, crushed branches, and other suitable granular materials. It can serve different raw material sources without being limited to sawdust alone.
- Cyclone separation for material collection: An enlarged cyclone separator is used to separate dried particles from the airflow. This helps collect the dried material at the discharge outlet.
- Suitable for biomass processing lines: The airflow drying machine can be connected with crushing, screening, briquette forming, and pellet production equipment. It helps prepare raw materials before subsequent processing.
What materials can a sawdust drying machine process?
An airflow dryer machine is suitable for granular and lightweight biomass materials that can be carried by hot air through the drying pipeline.
Common materials include:
| Raw Material | Main Applications |
|---|---|
| نشارة الخشب | Wood pellets and biomass briquettes |
| Rice husks | إنتاج وقود الكتلة الحيوية |
| Small wood chips | Further crushing and biomass processing |
| Crushed branches | Biomass fuel and charcoal production |
| Wood powder | Biomass processing |
The rice husk drying machine has the following material size requirements:
- Particle diameter: less than 3 mm
- Particle length: less than 5 mm
Large wood pieces and oversized particles should be screened out before drying. If the raw material contains large branches or wood chips, a wood crusher can be used for size reduction first.
Main components of the sawdust dryer machine
The sawdust drying machine consists of eight main components. The following list shows its basic structure, and the equipment diagram below provides a visual reference.
- Heating furnace
- Feeding hopper
- Slag discharge outlet
- Material stirring device
- Drying pipeline
- Blower
- Support frame
- Cyclone separator
How does a sawdust airflow dryer work?
The sawdust drying machine uses hot air to carry and dry small particles inside a pipeline.
The drying process consists of the following stages:
- Material feeding: Wet sawdust or other prepared biomass materials enter the feeding hopper.
- Hot air supply: The heating furnace produces hot air, which is delivered into the drying pipeline by the blower.
- Material drying: The airflow carries the particles through the pipeline. During transportation, the hot air contacts the material and removes moisture.
- Material separation: The dried material enters the cyclone separator, where it is separated from the airflow.
- Material collection: The dried particles are discharged through the separator outlet, while exhaust gas is released through the exhaust outlet.
Specifications of wood sawdust drying machine
Our best-selling airflower sawdust dryers are available in the following two models. If you have other requirements, they can be customized to suit your needs.
| نموذج | Pipe thickness | Pipe diameter | قوة |
| SL-219 | 2mm | 219mm | 4 كيلو واط |
| SL-320 | 2mm | 320mm | 11 كيلو واط |
Heating furnace: The hot air furnace is built by the customer according to the equipment requirements. Customers need to prepare a suitable heating arrangement before installation.
What drying performance can an airflower dryer achieve?
The drying result depends on the initial moisture content, hot air temperature, material size, and feeding conditions.
According to the sawdust drying machine specifications, when the hot air temperature reaches 180°C, sawdust or rice husks with an initial moisture content of 35% can be dried to approximately 10%.
How to connect a sawdust dryer to other processing equipment?
A sawdust drying machine is often part of a larger biomass processing line. Its position depends on the final product and the condition of the raw materials.
1. Sawdust drying for wood pellet production
Sawdust is one of the common raw materials used in wood pellet manufacturing. Wet sawdust needs to be dried to a suitable moisture level before entering the pellet machine. A typical processing sequence is:
Wood crushing → sawdust drying → pellet forming
The dried sawdust can then enter a biomass pellet machine to produce biomass fuel.
2. Sawdust drying before charcoal carbonization
Biomass materials such as sawdust, rice husks, and other suitable agricultural and forestry residues can be prepared for carbonization.
A drying stage can be arranged before the carbonization furnace to reduce excess moisture in the feedstock.
After carbonization, the resulting charcoal can be processed through a charcoal crusher, wheel mill, mixer, and charcoal briquette machine to produce different forms of charcoal fuel.
What is the fuel consumption of sawdust drying machine?
The sawdust airflow dryer can use wood fuel or coal to provide heat for the drying process. The reference fuel consumption is:
- Wood (including wood scraps): 35 kg/h
- Coal: 20 kg/h
Customers can choose a suitable fuel according to local availability and operating costs.
Sawdust airflow drying machine installation and operation
Correct installation and operation help maintain stable airflow and drying performance.
Before starting the sawdust drying machine
- Install the equipment and check all pipeline connections.
- Start the blower and check its rotation direction and suction at the feeding inlet.
- Inspect flange connections for air leakage.
- Install a collection bag with openings at both ends at the cyclone separator discharge outlet.
- Screen the raw material to remove oversized particles.
During operation
- Add fuel to the heating furnace and ignite it.
- Start the blower and allow the equipment to preheat.
- When the outlet temperature reaches approximately 150°C, begin feeding material according to the operating instructions.
- Keep the feeding process steady and regularly remove large particles from the slag discharge opening.
Important safety requirements
- The cyclone exhaust outlet must not discharge into an indoor space.
- Install an exhaust pipe leading outdoors, with its outlet at least 500 mm above the roof.
- Regularly clean oversized particles around the feeding inlet.
- If material feeding becomes difficult, inspect the blower blades and remove accumulated debris.
Frequently asked questions about sawdust dryer
What is the difference between an airflow dryer and a rotary dryer?
An airflow dryer uses hot air to carry small particles through a pipeline for drying. A rotary dryer uses a rotating drum to move and dry materials. An airflow dryer is suitable for small, lightweight particles.
Can the machine dry wet sawdust directly?
Yes, provided that the sawdust meets the specified particle size requirements. Large pieces should be crushed and screened before entering the sawdust drying machine.
What is the final moisture content of dried sawdust?
Sawdust can be dried to approximately 10%. Actual results depend on material characteristics and operating conditions.
Can the sawdust dryer work with a briquette or pellet machine?
Yes. It can be integrated into a biomass processing line. After drying, suitable sawdust can be transferred to a آلة كريات نشارة الخشب or wood pellet machine for further processing.
Contact Shuliy for an airflow drying machine quote!
Looking for an airflow dryer for sawdust, rice husks, or other biomass materials? Contact Shuliy to get the latest price and sawdust drying machine details. Tell us your raw material type, initial moisture content, required output, and drying requirements. Our team will help you select a suitable sawdust dryer for your business.
