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What factors are related to the charcoal production rate of machine-made charcoal?

Author:Zhengyang MachineryTimes:2020-11-24
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What factors are related to the charcoal production rate of machine-made charcoal? There are two points in summary: 1. Raw materials, 2. Carbonization temperature. Here is a brief analysis for everyone based on these two points:


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1. Raw materials

The charcoal output rate shows a certain difference due to the different types of raw materials, which means that the quality of the raw materials determines the quality of the machine-made charcoal products. The wood fiber content in the raw material has a positive effect on the output of charcoal. High-density materials can generally produce dense and strong machine-made charcoal. For example, eucalyptus is a good raw material for making charcoal.

2. Carbonization temperature

Although the lower carbonization temperature can get a higher char yield, because this kind of machine-made charcoal has low quality and corrosion, contains acidic tar substances, it cannot be burned with a clean smokeless flame. The solid carbon content of high-quality commercial carbon should be higher than 80%, which requires us to control the final carbonization temperature above 500 degrees. The wood fiber content in the raw material has a positive effect on the output of charcoal. Machine-made charcoal production more welcomes mature materials with strong structures. Dense wood can generally produce dense and strong machine-made charcoal. However, as the carbonization temperature increases, the fragility of charcoal will increase. In actual production, it has been found that when the final carbonization temperature is between 550°C and 650°C, the brittleness and solid carbon content of machine-made charcoal are between A more ideal equilibrium can be achieved.

As we all know, charcoal can generally be divided into low-temperature charcoal, medium-temperature charcoal and high-temperature charcoal according to the burning time and temperature. These three kinds of charcoal have different charcoal yields because of the different burning methods. The sawdust with a moisture content of 15% is used as For example, generally speaking, the char output rate of low-temperature charcoal is 1/2, which means that two tons of sawdust are needed to produce one ton of low-temperature charcoal. The charcoal production rate of medium-temperature charcoal is 2/5, which means that to produce one ton of medium-temperature machine-made charcoal requires two and a half tons of sawdust. Finally, high-temperature charcoal has a relatively low charcoal production rate, but this kind of machine-made charcoal is mainly used as The selling price of exported charcoal is relatively high, and the charcoal output rate of high-temperature charcoal is 1/3, that is, only three tons of sawdust can produce one ton. The charcoal extraction rate of these machine-made charcoal is the most ideal charcoal extraction effect, because in the actual production process, there are slight deviations in the charcoal extraction rate due to different firing methods. These data are for reference only.

If you have any differences on the above statement, please feel free to contact us and we will discuss it together.

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