Precision Wood Drying Machine for Superior Biomass Quality
Wood Drying Machine Overview
Wood drying machine is mainly responsible for adjusting the raw material moisture to a level suitable for pelletizing. By continuously lifting the material and bringing it into full contact with hot air, it efficiently removes moisture from the raw materials. In the biomass pellet production process, wood dryer machine is positioned after raw material crushing and before pelletizing, making it a critical and indispensable stage.
- Wood chip dryer enables precise control of raw material moisture, ensuring high-quality pellet formation.
- Dried materials have excellent flowability, allowing smooth feeding into the wood pellet mill and effectively improving the output and operational stability of the pellet machine.
- Drying significantly increases the calorific value of biomass pellets, leading to more complete combustion and higher combustion temperatures.
- Dried materials are easier to store and transport, with an extended shelf life.
RICHI Wood Drying Machine: Models & Specifications
RICHI wood drying machines come in a variety of models, including both single-drum wood dryer machines and triple-drum nested wood dryer machines, to meet customers’ different budget and drying needs. In addition, we also provide customized services.
| Model | φ0.6*6 | φ0.8*8 | φ1.2*12 | φ1.5*15 | φ1.8*18 | φ1.8*20 | φ1.8*36 | φ1.8*12*3C | φ1.8*24*3C |
| Diameter（m） | 0.6 | 0.8 | 1.2 | 1.5 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
| Length（m) | 6 | 8 | 12 | 15 | 18 | 20 | 36 | 12 | 24 |
| Number of Layers | 1 | 3 | |||||||
| Drum Speed（rpm） | 3~12 | ||||||||
| Inlet Air Temperature（℃） | 400~500 | ||||||||
| Outlet Air Temperature （℃） | 70~80 | ||||||||
Because RICHI’s technology is constantly being updated and iterated, we will continuously upgrade and innovate our equipment. Therefore, the specific equipment parameters are subject to the actual quotation. We will provide more professional customized design and production services for each customer.
Key Advantages of RICHI Animal Feed Mixer Machine
RICHI wood drying machine is specially designed for the biomass pellet production line, integrating efficiency, energy saving, environmental protection and intelligence. It is efficient, energy-saving, environmentally friendly and intelligent. Besides, to show its core advantages in practical use clearly, we will introduce its key technical features in detail below. These features include the wind negative pressure system, the triple-drum nested + lifter design and the high-efficiency environmental protection system. In this way, the wood dryer machine can run stably, efficiently and eco-friendly.
Wind Negative Pressure System
- The core wind system consists of a blower and an induced draft fan. The strong wind (negative pressure) pushes the materials to the discharge port.
- It adopts the heat transfer method of air cross-flow, which has extremely high heat transfer efficiency and reduces unit energy consumption.
- With the zoned hot air chamber, it can achieve precise control of the material temperature in different drying stages. At the same time, by adjusting the air pressure of the induced draft fan and the rotating speed of the drum, the residence time of materials in the drum can be controlled very flexibly.
- The wood dryer machine can be installed horizontally, with a very compact overall structure, small floor space, and easy cleaning and maintenance.
Triple-Drum Nested + Lifter Design
- The outer drum forms a natural insulation layer for the inner drum, which greatly reduces heat loss.
- As the drum rotates, the wood drying machine continuously lifts and sprinkles the materials, allowing the materials to fully contact with the hot air flow, and the contact area is increased by more than 50%.
- The materials move alternately in cocurrent and countercurrent directions in the three layers of drums, which prolongs the residence time and greatly improves the thermal efficiency compared with the traditional single-drum dryer.
- The high-temperature flue gas passes through the inner, middle and outer drums in turn, so that every part of the heat is fully utilized and energy waste is avoided.
High-Efficiency Dust Removal System
- The feed and discharge ports adopt a sealed structure to prevent negative pressure failure or dust leakage.
- It can be equipped with a two-stage dust removal system. The dusty moisture sucked out from the end of the drum first enters the cyclone for primary dust removal, and then passes through the pulse dust collector for secondary filtration, ensuring that the exhaust gas emission concentration meets the environmental protection standards.
Supporting Equipment for Wood Drying Machine
In a typical wood pellet production line, the drying system is not just a single wood drying machine. Instead, it requires the coordination of upstream and downstream equipment. So, besides choosing the right wood chip dryer machine, you also need to consider three key issues: heat source supply, exhaust gas dust removal, and intelligent control system.
Heat Source Selection
It is often used in conjunction with a biomass hot air furnace, which uses the pellet products or waste from the production line itself as fuel. This configuration achieves the lowest operating cost and optimal economy, making it the most common heat source matching currently.
Environmental Protection Configuration
The exhaust gas generated during drying contains a large amount of water vapor and a small amount of dust, which must be purified by equipment such as cyclone dust collectors and bag filters before emission.
Intelligent Control
RICHI wood chip dryer can be equipped with a PLC and frequency conversion control system. Besides, it can automatically adjust the feeding speed, hot air temperature and drum speed according to the raw material moisture and flow rate.
Global Customer Cases
RICHI Machinery wood drying machines enjoy a global presence with successful exports to many countries and regions. Thanks to their high efficiency, stable operation and outstanding drying effect, they have become a popular and highly acclaimed choice for wood processing enterprises around the world.
Wood Chip Dryer For Sale Romania
The customer’s core demand is to solve the problem of efficient drying of wood raw materials (mixed hardwood and softwood). It ensures that the moisture content of raw materials meets the standard, so as to guarantee the forming quality and production efficiency of wood pellets.
The wood drying machine we provide adopts an efficient heat exchange design. It can quickly dry wood raw materials with a moisture content of 30%-60% to the optimal forming moisture content of 10%-15%.
Wood Dryer Machine In Canada
The customer’s core demand is to build an efficient, energy-saving 2T/H wood pellet production line that is suitable for small workshop layouts. Among them, the wood dryer needs to meet the requirements of diverse raw materials (such as sawdust, wood scraps, etc.), high drying efficiency and small floor space.
Because the customer’s workshop size is limited, we customized the rotary drum dryer according to this pain point, optimized the equipment structure, and minimized the equipment floor space while ensuring the 2T/H drying capacity.
Wood Drying Machine In South Africa
The customer’s core demand is to match a suitable wood chip dryer for their self-built hot air furnace. Our dryer is made of corrosion-resistant and high-temperature-resistant materials. It can adapt to the local climate conditions and wood chip characteristics in South Africa, effectively avoiding equipment wear caused by long-term contact with wet wood chips.
Besides, our dryer can work perfectly with the customer’s self-built hot air furnace. It not only has stable drying efficiency, but also the drying uniformity of wood chips meets the standard.
main Equipment of a Complete Wood Pellet Production Line
RICHI supplies not only wood drying machine, but also full-line supporting euipement—wood chipper for sale, wood crushers, biomass pellet mill, pellet cooling machines, packaging machine and more. All equipment is fully customized to your production scale, raw material and process needs.
Log Bebarking Machine
Drum Wood Chipper
Multifunctional Wood Crusher
Wood Hammer Mill
Counterflow Cooler
Vibrating Screen
Automatic Packing Machine
Cyclone
Conveying Machine
Frequently Asked Questions
Below is a compilation of frequently asked questions from customers regarding the purchase of our wood drying machine. If you have any questions, please feel free to contact us. Click here to know more about RICHI.
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What is the actual power consumption of your wood drying machine to dry one ton of wood chips (e.g., from 40% moisture content to 15%)?
It depends on the heat source you adopt. Take our mainstream triple-pass dryer as an example: Evaporating 1 kg of water requires about 900–1100 kcal of heat. Drying one ton of wood chips from 40% to 15% moisture consumes approximately 300,000 kcal per hour. If you use a biomass hot-blast stove, the fuel cost is usually 40%–60% lower than that of oil or gas.
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My biomass pellet mill is very sensitive to raw material moisture. Can you guarantee the discharge moisture is stable at 12%?
Yes. We promise the discharge moisture deviation will be controlled within ±1%. Our wood drying machine is equipped with an online moisture monitor, which feeds data back to the PLC control system in real time.
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My raw materials are relatively complex, including wood chips, crushed branches and bark. Will such mixed materials get blocked inside the wood dryer machine?
For mixed materials, our feeding mechanism is specially designed with an anti-winding and dispersing device, which can effectively handle branches and bark. The drum is equipped with lifting plates, so even heavy bark can be lifted evenly to avoid accumulation and blockage.
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Environmental protection requirements are very strict now. Can the dust emission of your equipment meet national standards?
Our standard configuration includes a two-stage dust removal system (cyclone separator + pulse bag filter). Under normal working conditions, the exhaust emission concentration can be guaranteed to be below 10 mg/Nm³, which exceeds the environmental protection standards in most regions.
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The temperature inside the wood drying machine is very high, and wood chips are flammable. How do you prevent the equipment from catching fire?
Our drying system is equipped with a spark detection and extinguishing system, which consists of spark detectors, audible and visual alarms, controllers, spray devices and linkage mechanisms. It can effectively prevent fire risks and greatly improve the safety of equipment operation.
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Is your wood dryer machine complicated to operate? How many operators are needed to monitor it?
Our wood dryer machine adopts full PLC automatic control with a touch screen control panel. The operator only needs to set the target moisture content on the screen, and the equipment will automatically complete the whole process from feeding, temperature adjustment to discharging. During normal production, only one person is required to inspect and take care of both the hot-blast stove and the dryer control room, which is very convenient and labor-saving.
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How about your after-sales service?
We provide a 12-month warranty for the wood drying machine. We offer customers lifetime technical support, including remote diagnosis via our 24/7 online service hotline, on-site maintenance when needed, and regular equipment inspections. We also maintain sufficient spare parts inventory to ensure fast delivery and minimize your production downtime. (View our YouTube)
