Wood sawdust briquettes production line is mainly used to plasticise and mould sawdust or rice husk into biomass fuel under high temperature and pressure. Its raw materials for making charcoal briquettes are usually various agricultural wastes.
The complete set of wood sawdust briquettes making machine includes: crushing equipment, drying equipment, sawdust ball making equipment, carbonisation equipment, flue gas purification equipment and so on. There are many kinds of model specifications for each piece of equipment in sawdust ball making production line. Usually it can be customised according to customers' investment budget and production demand. We can provide you with detailed sawdust to bar production programme.
Chipping: If the biomass raw material is large diameter logs, fruit trees, branches, etc. for coarse breaking. Use wood drum chipper to roughly break the wood. Thus the processing efficiency of wood chips can be improved.
Crushing: for larger raw materials. For example: wood, branches, straw, sorghum sticks, etc.. It needs to be pre-treated by wood crushing equipment. Crush the raw material into less than 8mm sawdust-like. According to different materials, the bottom screen of the crusher can be replaced with screens of different apertures. Thus processing different fineness of sawdust.
Drying: The moisture content in the wood raw material is different. Sawdust with high moisture content is not suitable for ball making. We can use sawdust dryer to dry the sawdust. We can use drum dryer, which can dry all kinds of granular and powdery materials. After drying, the moisture content in the raw material is controlled at 8-12%.
Briquettes: The dried sawdust is made into solid sawdust bar making under high temperature and pressure. Different shapes and sizes of sticks can be processed. The interior is equipped with a screw propeller. When the raw material is sent to the moulding cylinder. It is heated by the heating ring outside the moulding cylinder. Rod making occurs as a result.
Carbonisation: The formed sawdust rods are then subjected to high-temperature carbonisation in a suspended carbonisation furnace or horizontal carbonisation furnace.
Smoke purification: Sawdust processing will produce a certain amount of dust. Especially in the process of sawdust bar making. Pyrolysis of wood chips will produce salt city. In addition, the process of sawdust bar carbonisation will also produce smoke. It is processed through the smoke purification device. It can effectively reduce the air and smoke pollution in the production process.