1 drying stage. The temperature at this stage is 120-150 degrees Celsius, and the pyrolysis rate is very slow. The main reason is that the moisture in the wood evaporates when it relies on externally supplied heat, and the chemical composition of the wood material hardly changes.
2 pre-carbonization stage. The temperature at this stage is 150-275 degrees Celsius, the pyrolysis reaction of wood materials is obvious, and the chemical composition of wood materials begins to change. The unstable combination components, such as semi-fibers, decompose to form carbon dioxide, carbon monoxide and a small amount of acetic acid.
3 carbonization stage. This temperature stage is 275-400 degrees Celsius. In this stage, the wood material is thermally decomposed rapidly, generating a large amount of decomposition products. The liquid product produced contains a large amount of acetic acid, alcohol and hibiscus oil, and the water content of the generated gas is gradually increased. The reduction, while methane, has been fading, and the gas is gradually getting more and more. This stage releases a large amount of heat of reaction, so it is also called the exothermic reaction stage.
4 calcination stage. The temperature rises to 450-500 degrees Celsius. At this stage, the charcoal is calcined by externally supplied heat, and the volatile matter remaining in the charcoal is discharged to increase the fixed carbon content of the charcoal. At this time, the liquid product is rarely formed.
5 carbonation stage. The temperature at this stage is 500-1200 degrees Celsius, and the key is this stage.
Charcoal crusher | Coal crusher | Briquettes grinder
The industrial charcoal crusher was named coal crusher machine, coal briquettes grinder, etc. This commercial crusher machine is mainly used for crushing all kinds of charcoal or coal briquettes into small pieces and powder. With high efficiency for grinding charcoal and coal powder, this coal crusher is widely used in charcoal processing plants and various charcoal production lines.
Continuous carbonizing furnace for charcoal making
The continuous carbonization furnace can make wooden materials like wood sawdust or peanut shell into charcoal. This equipment can continuously carbonize for 24 hours, realizing simultaneous feeding and discharging. It is the ideal equipment for the mass production of charcoal.
Charcoal Carbonization Furnace | Biomass Charcoal Making Machine
This type of charcoal carbonization furnace offers greater carbonisation capabilities, a wider range of materials, continuous production and higher productivity.
Honeycomb Coal Briquette Production Line | Charcoal Forming Machine
The honeycomb coal briquette production line crushes, mixes, shapes and carbonises raw materials such as wood or straw, and finally produces highly efficient and environmentally friendly honeycomb coal products to meet a wide range of energy needs.
Wood Hammer Mill Crusher | Large-yield Hammer Grinder
This wood hammer mill crusher ensures excellent pulverising results by quickly and finely grinding raw materials into uniform particles through a powerful hammer vane system.
Horizontal carbonization furnace | hardwood log charcoal machine
e horizontal carbonization furnace is a device that can carbonize raw materials. It is an essential machine in the process of coal production. It is widely used in charcoal processing plants because of its simple operation and high safety. There are many types of carbonization furnaces, including continuous carbonization furnaces and hoisting carbonization furnaces.