Carbonization process and market overview of vacuum hot press furnace

Carbonization link of vacuum hot press furnace:

1, air drying link. The ambient temperature of this link is 120-150℃, and the thermal cracking rate is very slow. The main reason is that the water content in the wood evaporates with the help of the heat provided by the outside. The organic chemical composition of the wooden raw materials basically does not change.

2. Pre-carbonization link. The ambient temperature of this link is 150-275℃, the chemical reaction of wooden raw materials pyrolysis is more significant, the physical composition of wooden materials began to change, in which the unstable components, such as semi-chemical fiber dissolved form CO₂, carbon monoxide gas and chemical substances glacial acetic acid and other chemicals.

3. Carbonization link. This is an environmental temperature link for 275-400℃, in this link, wooden raw materials to carry out decomposition reaction, the formation of a large number of dissolved substances, the production of liquid substances with a large number of glacial acetic acid, alcohol and wood oil. Formed in the gas CO₂ moisture content gradually reduced, and methane, has been thin and other flammable gas gradually more environment, this link release a large amount of reaction heat, so also known as the chemical reaction link.

4. Calcination link. When the ambient temperature rises to 450-500℃, this link carries out the charcoal calcination with the help of external heat, expels the remaining volatile chemicals in the charcoal, and improves the stable carbon content of the charcoal. At this time, the liquid substances formed are already very few.

5. Carbon refining link. The ambient temperature of this link is 500-1200℃, and the key is this link.

Vacuum hot pressure furnaces need to achieve smoke control and environmental protection carbonization, so that they can be recognized by people in the sales market. The smoke control and environmental protection carbonization of vacuum hot pressure furnaces has also been recognized by many consumers. Therefore, the smoke control and environmental protection carbonization of vacuum hot pressure furnaces is favored by many consumers.

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