Making Charcoal From Wood Chips

Wood chips are an important raw material for making charcoal. Wood chips are made into charcoal using a charcoal making machine. Charcoal made from wood chips is carbonised at high temperatures under oxygen-poor conditions. The final product is made into charcoal. However, it should be noted that the wood chips must be pure wood chips as raw materials, otherwise it will affect the quality of the final charcoal.

The method of making charcoal from wood chips

Material Preparation

Sufficient wood chips are needed. These can be wood waste from other industries such as wood processing plants, furniture manufacturing plants, formwork production plants, and so on. It is important to ensure that there are no impurities in the wood chips. Before making charcoal, the wood needs to be pre-treated. This includes: crushing, drying and sorting.

1. Crushing: If the original wood size is too large, the wood needs to be crushed to a size suitable for subsequent processing. The optimal size size is: 8mm-10mm.
2. Drying: Use a dryer to remove excess surface moisture from the wood chips. The optimum moisture content is 12 per cent.
3. Sorting: Remove the impurities in the wood, such as dust, stones and other materials through the tumbler screen. Improve the quality of the subsequent finished charcoal.

Wood Chip Bar Making Carbonisation

Bar Making Carbonisation is a key step in converting wood chips into charcoal. This process is carried out in a carbonisation furnace using milfoil air. Ensure adequate temperature and oxygen control.

1. Bar making: Wood chips are compressed into charcoal briquettes using a sawdust bar maker under high temperature and pressure. The briquette machine produces: hollow balls with a diameter of 5mm-7mm.
2. Carbonisation: The wood chip briquettes need to be carbonised in a horizontal carbonisation furnace. The carbonisation temperature is about 500℃. During the carbonisation process, the wood chips evaporate water and volatile gases. Eventually it is converted into charcoal. During the carbonisation process, combustible gases are produced as a by-product of the reaction production. It can be re-fed to the combustion chamber of the carbonisation furnace as a heat source through the flue gas recirculation system.

Cooling and Packaging

1. Cooling: After carbonisation is completed, the charcoal needs to be allowed to cool naturally in the furnace. Avoid taking out the hot charcoal directly. Prevent accidental burning or charcoal sending breakage. After cooling, remove the charcoal.
2. Packing: after removing the charcoal from the carbonisation furnace, it needs to be sieved. Ensure that the final charcoal product is of uniform specification. After screening, load the charcoal into suitable packaging materials. For example: woven bag or cardboard box. Thus, it is easy to store and transport.

Through the above process steps, the wood chips can be transformed into high quality charcoal. This kind of charcoal has the advantages of high calorific value, low ash content, easy to burn, long burning time and so on. It can be widely used in: barbecue, heating, industry and other industry fields.

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