How is the charcoal burning out
Moisture contentBecause charcoal is a strong absorbent material, so in the process of piling up, it will absorb the moisture in the air, so that their water content increased. Therefore, the size of the moisture content of the water itself has no effect on the quality, but the customer requires the lower the moisture content of the better, in order to enhance its economic value. Generally speaking, just baked charcoal moisture content are less than 3%.Two, volatile fraction (volatile content)The volatile content depends on the carbonization temperature. According to different uses, we can burn low, medium temperature carbon, also can burn high temperature carbon. In the high temperature calcination release of CO, CO2, H2, CH4 and other volatile gaseous carbohydrate, its content is generally 12 to 20%. High temperature carbon released by the above volatile less, its content is generally less than 5%.
Three, ash content (ash content)Ash is the white or pink material remaining after the combustion of all the charcoal. Its size directly affects the use of charcoal and economic value. For example, straw, rice husk and other substances contained in the ash is large, and the combustion is not easy to fall off, resulting in low temperature combustion, which is not suitable for people's lives and industrial carbon. Of course, the ash is expected to be smaller, the better, in order to expand its use.The ash content of charcoal will vary with the carbonization process and temperature. But wood or scrap, they are not carbon ash differences, generally speaking, in the same conditions, the broad-leaved forest burning charcoal than coniferous forest, a large proportion of the raw bark burn the charcoal ash as well. The usual charcoal ash in 1 ~ 4%.
The trees cut into sections, lit in a kiln, burning to a certain extent, closed air into the kiln, waste heat to heat water and carbonization of wood, wood tar is leavened, carbonization of wood charcoal as. This is similar to the past when the family of firewood burning charcoal.Now there is the use of wood chips and other waste processing mechanism of charcoal, the waste pressing forming, indirect heating in the furnace for carbonization, these raw materials carbonized into charcoal.The quality of charcoal can only be used according to different quality indicators. Usually, we measure the quality of the charcoal mainly from the moisture content, volatile fraction, ash content, fixed carbon content and calorific value
