How do we judge the quality of the machine-made charcoal bars?

2019-08-26 16:12:00
Judy
Original
1729
Summary : The quantity of charcoal bar sales depends mainly on its quality. The best quality charcoal bars is in short supply, and the inferior charcoal bars will affect the company's interests. It is important for us to how do we judge the quality of the machine-made carbon bars?

The machine-made charcoal bar is a resource product, and the sawdust and wood wastes are main raw material. Generally speaking, the raw material bar's diameter is 50cm, it is reduced to 36-38cm after carbonization. The charcoal bar has a metallic luster, and you will feel a heavy when you take it with your hands. If it doesn't shrink when carbonization, your hands will become fully of black ash when you hold it, and no luster, bad quality. The quantity of charcoal bar sales depends mainly on its quality. The best quality charcoal bars is in short supply, and the inferior charcoal bars will affect the company's interests. It is important for us to how do we judge the quality of the machine-made carbon bars?

machine-made charcoal bar

1. The length of the machine-made charcoal bar.

The length of the machine-made charcoal packing box should be more than 5 cm, and limits to the carton’s length.

machine-made charcoal bar

2. The diameter of the machine-made charcoal bar (shrinkage).

At present, most of the domestic charcoal equipment manufacturers adopt the standard of 5 cm diameter forming sleeve, so it should be below 4 cm of the finished carbon diameter, with 3.5-3.8 as the optimal shrinkage size. The resistance value is also determined according to the carbon content and shrinkage of charcoal. The export charcoal has this test standard.

machine-made charcoal bar

3. The color of the machine-made charcoal bar.

The color of the machine-made charcoal bar should be black. From the outside, the charcoal is pure black. If the color is black, and the knocking sound is not crisp enough, indicating that moisture content of charcoal is too heavy. The color of cross section should be more clearly when you broke the carbon bar. If there is yellowing, it means that there are many impurities in the charcoal, and the ash content and volatile matter will naturally exceed the standard; or the carbonization process is not standard enough, the charcoal has smoke and taste (charcoal has a taste but not necessarily smoke, but the smoke must have a taste). This is also the most obvious phenomenon of incomplete carbonization.

machine-made charcoal bar

4. The hardness of the machine-made charcoal bar.

Hold the charcoal stick with one hand and hold it vertically. It should not be easily broken into the standard with your thumb. The better the hardness, the better the quality of the charcoal. Charcoal allows for a small amount of cracking and does not affect the quality of the charcoal. However, too much cracks indicates that the density of the semi-finished wood stick is not good or the oxygen supply during the carbonization process is too much, and the crack caused cannot be completely shrunk. It should be make a crisp metallic sound when the two charcoal bars tapping.

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