Sawdust briquette machine is a screw-type extruder for making briquettes of biomass materials. It is one of the main machines in making bio-charcoal briquettes. It is also called a biomass briquette machine or wood charcoal machine.
Advantages of sawdust briquettes
- Wood sawdust briquettes can be used as fuel for burning directly. Compare with natural wood, it has a higher density and heating value.
- The sawdust briquettes machine can use residual wood and agro-waste to produce briquettes. It changes the traditional way of making charcoal from lump wood, helping us reduce tree felling.
- Compare with natural timber charcoal, sawdust briquettes charcoal has a higher heating value and longer burning time.
Biomass Materials for making briquettes
Biomass materials for producing briquettes can be wood sawdust, rice husk, tree branches, coconut shell, coffee grounds, bagasse, peanut shell, bamboo, etc. One thing in common among these materials is that they all contain a certain amount of lignin. Lignin is an important ingredient for briquette forming, it can reform the shape in the condition of high pressure and high temperature.
Size and moisture of raw materials required for making briquettes
The size and moisture of materials are important for making high-quality wood briquettes. Regarding the size of the material, it needs to be less than 5mm, and the moisture content should be less than 12%. To make the materials meet these requirements, you can choose a wood crusher and sawdust dryer to process the raw materials.
How to make wood briquettes
First, we set the temperature to 300℃. After the temperature rises to 300℃, begin to feed materials into the sawdust briquette machine. Sawdust is pushed by the rotating screw forward to the end of the mold. Under high temperatures and high pressure, sawdust is forming into briquettes and is expelled from the mold.
You can read the below operation manual of the sawdust briquette machine for more details.
How the sawdust briquette machine work
The shape and size of sawdust briquettes
The shape and size of briquettes are determined by the mold barrel. Diameter of briquettes can be 50mm, 70mm and 80mm. All of the briquettes made by the sawdust briquette machine are hollow. Briquettes maker usually carbonize the wood briquettes into charcoal through the carbonization furnace or traditional charcoal kiln to gain more profits.
Spare parts of sawdust briquette machine
The screw propeller, heating elements, and mold are the spare parts of the sawdust briquette machine.
Regarding the service life and maintenance period of these spare parts, details are as below,
Screw propeller: Please check the screw propeller per week and welding repair its head if there is wear. For one year of biomass briquette production, we suggest taking at least 6 pcs screw propellers for one set sawdust briquette machine.
Heating elements: Suppose that 24 working hours per day, the service life of the heating circle is about 6 months.
Mold barrel: Suppose that 24 working hours per day, the service life of the mold cover is 3-4 months.
Technical parameter of sawdust briquette machine
|Model||Power||Capacity||Briquette diameter||Machine dimension|
|ZBJ-III||22kW||300-400 kg/h||70 or 80mm||1.85*0.7*1.4m|