Biomass pellet making plant

The biomass pellet making plant can convert biomass raw materials such as agricultural and forestry waste into pellet fuel through a series of processing, which can meet the dual benefits of environmental protection and economic benefits at the same time. It plays an important role in promoting renewable energy use, reducing carbon emissions, and improving the value of waste resources.

Biomass pellet is a kind of clean and renewable energy. It has a wide range of sources,high combustion efficiency, and low pollution. It is widely used in areas like civil and industrial heating, as well as power generation. On the one hand, it can help ease the energy shortage problem. On the other hand, it can also solve the environmental pollution issues caused by straw and waste wood.

RICHI biomass pellet plant has a wide range of scales and the fuel pellets it produces generally have a diameter of 6 to 10 millimeters, making them suitable for different scenarios. Thousands of projects have been successfully built around the world and have received strong support from customers. If you want to learn more about biomass pellets, please send an email to contact us immediately to get the exclusive solution first.

What is a biomass pellet making plant

The video on the right provides a detailed explanation of how a biomass pellet making plant works — from raw material handling to final pellet output. If you want to visually understand the working process and equipment involved, don’t miss this informative demonstration.

A biomass pellet plant is a complete and automated production and processing system, which is specifically designed to take various biomass raw materials, like wood chips, sawdust, logs, crop straws, rice husks, urban garbage, etc. into solid biomass fuel particles with a diameter of 6-12mm through key processes such as crushing, drying, granulation, cooling, screening, and packaging.​​

These biomass pellets can not only replace traditional fossil fuels like coal and natural gas for household heating and industrial boiler combustion, but also serve as fuel for biomass power plants.

They effectively cut down greenhouse gas emissions and reduce environmental pollution, generally realize the recycling of resources. The global application prospects are very broad.

Classification of biomass pellet making plant

The vigorous development of green and environmental protection has boosted the global demand for clean energy. Biomass pellet, as a kind of renewable fuel, has a wide range of raw material sources. The different characteristics of these raw materials determine the process variations in the biomass pellet production line. Let us carefully understand the relevant classifications, which will help everyone plan production more reasonably and improve efficiency.

Wood pellet making plant

Wood pellet making plant

  • The main raw materials include wood chips, logs, waste wood, branches, bark and other wood materials.​​
  • In the wood pellet factory, sawdust and wood shavings that are already of the right size can directly enter the drying process.For larger pieces like logs and big wood blocks, we first need to slice them into thin pieces, then crushed to the appropriate size by a crusher, and then dried. Some materials usually contain a certain amount of moisture.
  • If the moisture content is too high, it’ll affect the quality of the pellets, so the moisture needs to be controlled at 13% – 18% through the dryer. After drying, the materials are sent to the pellet machine, where they’re squeezed into pellets under high temperature and pressure.
  • Biomass pellets made of wood chip raw materials have stable flames and few ash when burned, and are widely used in domestic heating, factory steam supply and other fields.
Biomass pellet making plant

Biomass pellet making plant

  1. Raw materials include corn stalks, wheat stalks, straw, rice husks, sorghum stalks and other agricultural wastes.
  2. Straw has a lot of fiber, so it needs to be crushed to a size of 3 – 5 mm before it can be dried. Because the straw itself is poorly sticky, it is often necessary to increase the granulation temperature or add a small amount of adhesive. Shell-like raw materials like peanut shells and rice husks are hard and have high density, and they need to be mixed with other raw materials such as straw to make into pellets.
  3. Using agricultural waste to produce biomass pellets not only achieves the recycling of waste materials but also reduces air pollution. It has significant environmental and economic benefits. These pellets can be used for heating in small biomass boilers and so on.
  4. Besides classifying based on raw materials, you can also arrange and construct the production lines according to the production scale as you like. We will provide the most suitable production line according to your actual situation.

Process flow of biomass pellet making plant

Biomass pellets are about turning various raw materials into efficient and clean energy. During the whole production process, every processing stage needs to be linked together, precise design avoids disconnection, and ensures efficient production operation. Depending on the characteristics of the raw materials and the production volume, the configuration of the production line will vary. The following is a focus on the process of biomass pellet making plant:

Raw Material Pretreatment

Raw Material Pretreatment

  • During the raw material processing stage, we must first judge the status of the raw material to perform appropriate treatment. For example, for excessively long straw materials, we use a hay cutter to cut them into small pieces of 3 – 5 centimeters with the blades. This ensures the material size is suitable for the next crushing step.
  • For example, when handling raw logs or branches, you need to use a drum chipper to cut them into thin slices. Different raw materials require different pretreatment methods, which is the first step to ensure the continuity and efficiency of the pelletizing process.
Crushing stage

Crushing stage

  • The sizes of the raw materials vary. In order to meet the pelletizing requirements, crushing is required first. The pretreated biomass material is crushed through a crusher, and the size of the crushed material needs to be adjusted according to the requirements of the pellet machine. Generally, the crushed material is about 3-5 mm.
  • The whole process is carried out through a wind transportation system to the shakron to unload the material. A pulse dust collector is introduced above to filter and discharge the material, ensuring that the material is not wasted. Finally, the crushed material is sent to the drying stage in a clean and controlled manner.
Drying Stage

Drying Stage

  • The crushed raw materials have a relatively high moisture content. Usually, we need to control the moisture content within the range of 13% – 18% to ensure a good pelletizing effect. Too much moisture can cause poor pellet formation or even blockage in the pellet mill.
  • This biomass pellet manufacturing plant uses a drum dryer, which transports the crushed materials into the drying drum. Moisture is taken away through the full contact between hot air and the materials. This step ensures the material reaches optimal conditions before pelletizing.
Pelletizing Stage

Pelletizing Stage

  • The pelletizing stage is the core of the whole production line. We transport the dried materials into the pellet mill. Through a strong extrusion process, the materials are compressed into dense, uniform biomass pellets.
  • During pelletizing, we can change different ring dies according to the product requirements. Meanwhile, we need to control the temperature and pressure well. The temperature is usually maintained at 70 – 90℃ to ensure the stability and strength of the pellets and avoid crushing during transportation and storage.
Cooling Stage

Cooling Stage

  • The freshly made pellets have a high temperature, so they need to be sent into a cooling device. Without cooling, the pellets may deform or break due to residual heat, which would affect the product quality and storage.
  • A counter-flow cooler is usually used. We feed the high-temperature pellets into the cooler from the top, while low-temperature air enters from the bottom. The two form a reverse flow and exchange heat. After cooling, the hardness and strength of the pellets are greatly improved, making them easier to store and transport.
Packaging Stage

Packaging Stage

  • Finally, the automatic packaging machine is used to complete weighing and bagging. The cooled pellets are packed in specific quantities such as 25kg or 50kg per bag, ready for storage or sale. This process ensures consistent packaging standards and protects pellet quality.
  • The packaging section marks the end of the biomass pellet production process. Clean, uniform, and durable biomass pellets are now ready to enter the market. A well-designed packaging step helps improve transportation efficiency and maintain product value.
Biomass Pellet Making Plant for Sale Brazil

Production Scale: 2–3 T/H
Pellet Size: 8 mm
Raw Materials: Rice husk, rice bran
Main Equipment: Water drop crusher, dryer, biomass pellet machine, cooler, rotary screen

Biomass Pellet Making Plant for Sale Kazakhstan

Production Scale: 6 T/H
Pellet Size: 6 mm
Raw Materials: Sunflower shells
Main Equipment: Sunflower shell crusher, biomass pelletizer, screw conveyor, pulse dust collector, cooling and packaging system

Biomass Pellet Making Plant for Sale Canada

Production Scale: 8 T/H
Pellet Size: 8 mm
Raw Materials: Alfalfa, forage grass
Main Equipment: Alfalfa cutter, biomass pellet machine, belt conveyor, rotary dryer, pellet cooler, bagging system

Indonesia Wood Pellet Production Line

Production Scale: 10 T/H
Pellet Size: 6 mm
Raw Materials: Wood chips, sawdust
Main Equipment: Crusher, rotary drum dryer, wood pellet mill, counterflow cooler, vibrating screen, dust collector

Uzbekistan Straw Pellet Line

Production Scale: 13 T/H
Pellet Size: 8 mm
Raw Materials: Wheat stalks, corn stalks
Main Equipment: Hammer cutter, straw crusher, spiral mixer, MZLH520 pellet mill, cooler, drum cleaner

Thailand Mixed Biomass Pellet Line

Production Scale: 18 T/H
Pellet Size: 8 mm
Raw Materials: Mixed agricultural and forestry waste
Main Equipment: Double-shaft mixer, heavy-duty biomass pellet machine, dryer, cooler, screener, packing system

High-Capacity Biomass Pellet Making Plant for Sale Chile

Production Scale: 20 T/H
Pellet Size: 8 mm
Raw Materials: Bark, straw, forestry residues
Main Equipment: Double-rotor crusher, rotary dryer, twin-shaft mixer, high-power pellet mill, cooling and sieving section, dust control unit

United States Industrial Wood Pellet Plant

Production Scale: 23 T/H
Pellet Size: 6 mm
Raw Materials: Hardwood sawdust, softwood chips
Main Equipment: Drum chipper, hammer mill, three-pass dryer, MZLH858 pellet machine, counterflow cooler, robotic packaging line

Germany Ultra-Large Biomass Energy Project

Production Scale: 30 T/H
Pellet Size: 6 mm
Raw Materials: Agricultural waste, bark, RDF
Main Equipment: Industrial crusher, rotary dryer, high-capacity pellet mill, automatic cooling & screening, large-scale packaging system


Efficient and comprehensive after – sales service:

RICHI machinery has a comprehensive and well – established after – sales service system. It has multiple overseas logistics routes to ensure that machine arrives safely and on time. Later on, if there’s any abnormality with the customer’s machine, we’ll provide after – sales staff to offer preliminary solutions right away. And within 48 hours, we’ll send professional technicians to the site (within China) for service, minimizing the customer’s downtime.

Scientific customized services:

We have a diverse and rich product system. With over 200 products, we can meet the needs of various biomass production customers. The company is equipped with a professional R&D and design team. According to your actual situation, whether it is a small feed factory or a large industrial feed factory, we will design personalized solutions for you based on the actual situation.

Excellent equipment quality:

RICHI Machinery has won many international authoritative certifications. The company has passed BV certification, ISO9001 International Quality Management System Certification, European CE Certification, and Swiss SGS Certification, among others. You can find us on YouTube.

Frequently Asked Questions

Uses of Biomass Pellets

Biomass pellets have a wide range of uses. Besides being used as clean fuels for heating, industrial boilers, and power generation, they can also improve soil quality and enhance soil fertility after being crushed. In the animal husbandry industry, they can be processed into coarse – fiber feed for ruminants. During ecological restoration, they can increase water – retention capacity and help restore vegetation in mining areas and deserts. These diverse applications realize the dual values of waste resource utilization and green development.

Key Factors in Raw Material Selection for Biomass Pellets

In the biomass pellet making plant, the selection of raw materials requires a combination of various factors:

1.Catalog value and ash content: High-calorie raw materials, such as wood chips, can greatly improve the quality of particulate fuel, but they need to consider the cost in combination; low-ash raw materials such as bamboo chips can reduce equipment wear and pollutant emissions, thus extending the equipment’s lifespan.

2.Moisture Content: The moisture level of the material should be controlled between 13 – 18%. If it is too high, it needs to be dried to avoid energy consumption and difficult to form. If it is too low, it needs to be humidified to improve the plasticity of the raw material

3.Supply Stability: It’s better to choose raw materials that are easily available locally and have small seasonal fluctuations, such as forestry scraps or agricultural straws. This can reduce logistics costs and the risk of raw material shortages.

4.Environmental Protection and Compliance: The raw materials need to meet environmental protection and compliance requirements. We should avoid using materials that contain excessive heavy metals or pesticide residues, as well as illegal raw materials.

How to choose the right production line equipment

When choosing a suitable biomass pellet making plant equipment, a variety of factors need to be considered comprehensively.

First, you need to clarify your production capacity requirements. For small – scale processing scenarios, you can use pellet machines of 0.5-1 t/h;for medium – sized factories, it’s recommended to choose equipment with a capacity of 1 – 3 t/h, which balances efficiency and cost. As for large – scale enterprises, they need to configure production lines with a capacity of over 5 t/h, paired with an automated control system to enhance production capacity stability.

Secondly, consider the adaptability of raw materials. For hard materials like wood chips and bamboo chips, a crusher is necessary. For fibrous raw materials such as straw and rice husks, a screw-belt mixer can be used to make the materials more evenly distributed.

In addition, for equipment quality and after-sales service, products that use 42CrMo molds, SKF spindles and Siemens motors are preferred to reduce failures and extend service life; at the same time, the supplier’s after-sales service capabilities are examined.

Finally, the energy consumption and environmental protection of the product, low-energy motors can reduce operating costs, and the dust collection device can ensure a clean workshop environment.

Biomass pellet making plants are very important. They can not only turn agricultural and forestry waste into treasures, alleviate environmental pressure, but also provide clean and renewable energy, take into account both economic and environmental benefits, and have broad development prospects. When choosing a high-quality production line, you need to pay attention to production capacity, raw material adaptability, etc. RICHI production line helps customers with its technical advantages. If you need a customized solution, please consult and obtain professional solutions.

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