Category Archive : biochar briquette making

What equipment can produce wood biochar briquette


Wood biochar briquettes are an eco-friendly and sustainable fuel source derived from waste wood materials. These briquettes serve as an excellent alternative to traditional fossil fuels, offering both environmental and economic benefits. The production of wood biochar briquettes involves several stages, each requiring specific types of equipment to ensure the process is efficient and the final product is of high quality. In this passage, we will delve into the equipment necessary for producing wood biochar briquettes, from the initial preparation of raw materials to the final stages of briquetting and packaging.

wood charcoal briquette making machine

wood charcoal briquette making machine

Preparation of Raw Materials

Wood Collection and Storage

The first step in the production process is the collection and storage of wood materials. This can include wood chips, sawdust, and other wood residues sourced from sawmills, carpentry workshops, and forestry operations. Proper storage is crucial to maintain the quality of the raw materials. Covered storage areas or silos are often used to keep the wood dry and free from contaminants.

Drying Equipment

Before the wood can be converted into biochar briquettes, it must be dried to reduce its moisture content to below 10%. High moisture content can hinder the pyrolysis and briquetting processes, resulting in inferior briquettes. Various types of drying equipment, such as rotary dryers, belt dryers, and flash dryers, are used to achieve the desired moisture level. These dryers use heat and airflow to efficiently remove moisture from the wood.

Processing Equipment

Grinding and Milling Machines

To ensure uniformity and enhance the quality of the biochar briquettes, the wood may need to be ground or milled into smaller, more consistent particles. Hammer mills and wood crushers are commonly used for this purpose. These machines pulverize the wood into fine particles, making it easier to process and compact during the briquetting stage.

Biochar Kilns or Pyrolysis Reactors

The core of biochar production is the pyrolysis process, where wood is subjected to high temperatures in an oxygen-limited environment. This process converts the wood into biochar. Biochar kilns or pyrolysis reactors are designed to maintain the necessary temperature and oxygen levels for efficient and complete conversion. Traditional biochar kilns, retort kilns, and advanced continuous pyrolysis reactors are commonly used types of equipment in this stage.

Cooling and Screening Equipment

Once the biochar is produced, it must be cooled before further processing. Cooling equipment, such as cooling conveyors or air coolers, is used to reduce the biochar’s temperature. After cooling, the biochar is screened to remove any oversized particles or impurities, ensuring a consistent particle size for the briquetting process.

Final Production Equipment

Briquette Press Machines

The cooled and screened biochar is then fed into briquette press machines, which compact the material into uniform briquettes. Various types of briquette press machines are available, including piston presses, screw presses, and hydraulic presses. These machines apply pressure to the biochar, compressing it into dense, durable briquettes. The choice of briquette press machine depends on factors such as production capacity, desired briquette shape, and specific material characteristics.

Binding Agents and Mixers

In some cases, binding agents may be added to the biochar to enhance the cohesion and durability of the briquettes. These agents can be natural or synthetic and are mixed with the biochar using mixers or blending machines. The mixture is then fed into the briquette press machine for compaction.

Post-Production Handling

Drying and Hardening

After briquetting, the biochar briquettes may require further drying or hardening to improve their strength and storage stability. This can be achieved using drying ovens, belt dryers, or natural air drying. Proper drying prevents mold growth and degradation during storage.

Packaging and Storage

The final step involves packaging the biochar briquettes for storage and distribution. Packaging machines can bag the briquettes in various sizes, making them convenient for handling and transportation. Proper storage conditions, such as maintaining a dry environment, are crucial to preserving the quality of the briquettes.


Producing wood biochar briquettes is a multi-step process that requires specialized equipment at each stage, from the initial preparation of raw materials to the final packaging. The equipment used in this process ensures that the biochar briquettes are of high quality, durable, and suitable for use as an alternative fuel source. By utilizing waste wood materials, the production of wood biochar briquettes promotes environmental sustainability and offers economic benefits. The comprehensive approach to biochar briquette production not only reduces waste but also contributes to a more sustainable and efficient energy landscape. Visiting:

How to use rice husk as material to make charcoal briquette


Rice husk, a byproduct of rice milling, is often considered agricultural waste. However, it holds significant potential as a material for making charcoal briquettes. Transforming rice husk into charcoal briquettes can provide an eco-friendly, sustainable, and cost-effective alternative to traditional charcoal. This guide details the process of converting rice husk into charcoal briquettes, highlighting each step and the benefits of using this abundant resource.

charcoal ball press making line

charcoal ball press making line

Collection and Preparation of Rice Husk

Rice Husk Collection

The first step in making charcoal briquettes from rice husk involves collecting the husks. Rice mills generate large quantities of husk, which can be gathered and transported to a processing facility. Ensuring a consistent and adequate supply of rice husk is crucial, as it forms the primary raw material for the briquettes.

Drying the Rice Husk

Before processing, the rice husk needs to be adequately dried to reduce its moisture content. High moisture content can affect the efficiency of carbonization and briquette formation. Natural sun drying or mechanical dryers can be used to achieve the desired dryness. Proper drying is essential to ensure the quality and combustibility of the final briquettes.

Carbonization Process

Carbonizing the Rice Husk

The carbonization process involves converting rice husk into charcoal through controlled heating in an oxygen-limited environment. This can be done using various methods, such as traditional kilns or more modern, efficient carbonization units. During carbonization, the rice husk undergoes pyrolysis, where volatile substances are released, leaving behind a carbon-rich residue. The key is to maintain the right temperature and conditions to produce high-quality charcoal.

rice husk as material for making charcoal briquette

rice husk as material for making charcoal briquette

Cooling and Collecting Charcoal

Once the carbonization process is complete, the hot charcoal needs to be cooled before further handling. This can be done by spreading the charcoal in a thin layer and allowing it to cool naturally or using cooling equipment. The cooled charcoal is then collected and prepared for the next step.

Crushing and Mixing

Crushing the Charcoal

The charcoal obtained from carbonizing rice husk is often in large chunks and needs to be crushed into finer particles. A hammer mill or crusher can be used to pulverize the charcoal into a fine powder. The particle size is crucial for briquette formation, as it affects the density and strength of the briquettes.

Mixing with a Binder

To form briquettes, the powdered charcoal must be mixed with a binder. Common binders include starch, clay, or molasses, which help in binding the charcoal particles together. The mixture is prepared by adding water to the charcoal and binder, creating a homogeneous paste. The right proportion of binder ensures that the briquettes hold together well and burn efficiently.

Briquette Formation and Drying

Forming the Briquettes

The charcoal paste is then fed into a briquette-making machine, which compresses the mixture into uniform shapes, such as cylindrical or pillow-shaped briquettes. The pressure and design of the machine play a significant role in determining the density and durability of the briquettes. Properly formed briquettes are easier to handle, store, and transport.

Drying the Briquettes

Freshly formed briquettes contain moisture that needs to be removed to ensure proper combustion. Drying can be done using natural sunlight or mechanical dryers, depending on the scale of production. Drying not only reduces moisture but also hardens the briquettes, making them more durable and efficient as a fuel source.

Benefits and Applications

Environmental and Economic Benefits

Using rice husk to make charcoal briquettes offers numerous environmental benefits. It reduces waste, lowers greenhouse gas emissions, and provides a sustainable alternative to traditional charcoal. Economically, it offers a cost-effective way to utilize agricultural byproducts and creates additional income streams for rice farmers and rural communities.

Applications of Rice Husk Charcoal Briquettes

Rice husk charcoal briquettes can be used in various applications, including cooking, heating, and industrial processes. They offer a cleaner and more efficient fuel source compared to traditional wood charcoal, contributing to reduced deforestation and better air quality.


Transforming rice husk into charcoal briquettes is a practical and sustainable way to utilize agricultural waste. By following the steps of collection, preparation, carbonization, crushing, mixing, briquette formation, and drying, high-quality briquettes can be produced. These briquettes not only provide an eco-friendly energy solution but also contribute to economic development and environmental conservation. Embracing this technology can pave the way for a greener and more sustainable future. Visiting: