Can you make charcoal from sawdust?

Updated: Aug 21

Making charcoal from sawdust is a popular solution for sawdust recycling. We all know that sawdust refers to the powdered wood chips that are scattered from the wood during wood processing. In many sawmills and furniture factories, waste wood of all shapes and sizes is often piled up. This waste wood, also known as leftovers, is composed of sawdust, wood chips, shavings, etc.


From Charcoalmachinery.com, we will introduce the processes of making charcoal from sawdust and the machines required for each process. For wood scraps with a size larger than 5mm.



Step 1: Crushing wood waste


In the above content, we mentioned that sawdust contains wood scraps of different sizes, so for the smooth progress of subsequent production, pretreatment of crushing sawdust is required. The uniform sawdust can reduce the drying time and the energy consumption of the dryer in the drying process. Besides, it can also reduce the wear of the sawdust briquette machine in the briquette-making process and ensure the uniform density of the wood briquettes. Of course, if your raw materials are fine sawdust with a size less than 5mm, this step can be omitted.


The machine required for the crushing process is a crusher, you can click here to read more about machinery.


Step 2: Drying sawdust


In many wood processing plants, sawdust is usually stacked in a corner of the workshop, and some are directly stacked in the open field. The humidity of sawdust is far from less than 12%, which is required for making briquettes, so it needs to be dried. Even for the raw materials that are stacked indoors, we recommend drying for pretreatment unless you measure and confirm that the humidity is below 12%. Drying sawdust can greatly improve the yield of sawdust briquettes.


The machine needed in this step is a dryer. For different drying capacities, air-flow dryers can be selected for small ones, and rotary drum dryers can be selected for large output.


Step 3: Making sawdust briquette


After crushing and drying, the size of the material can be less than 3mm, and the humidity is less than 12%. Next is sawdust "briquetting". The machine required is a sawdust briquette machine. The finished sawdust briquette is hollow, the shape of the mold is square and hexagonal, and the diameter of the sawdust rod can be 50mm, 70mm, and 80mm.


Step 4: Carbonizing sawdust briquette


Carbonization is the last step in the production of sawdust charcoal. The sawdust briquettes undergo high-temperature pyrolysis in the absence of air and are finally converted into charcoal. There are two ways to achieve carbonization, one is to use a traditional charcoal kiln, and the other is to use a carbonization furnace. Compared with the traditional charcoal kiln, the carbonization furnace can greatly reduce the flue gas emission and can recycle wood vinegar and wood tar (because they are only by-products of carbonization, so the amount is not large).


With the increasingly strict environmental protection policies in various countries and regions, more and more customers choose carbonization furnaces. We have different types of carbonization furnaces to meet customer needs. For sawdust briquettes carbonization, you can choose a hoisting carbonization furnace or a horizontal carbonization furnace. Their working principle is the same, the difference is how the material is loaded and unloaded. The former is vertical loading and unloading, the latter is horizontal loading and unloading.


Another solution of making charcoal from sawdust


Anyway, there is no other way to make sawdust charcoal. So why don't just buy it from Cocologi? PT. Cocologi Lentera Asia has many types of charcoal to offer. Sawdust briquettes from Cocologi are one of the best in quality and price. They offer different sizes and grades. You can check the product by contacting Cocologi Support right away.



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