How to produce charcoal briquettes is a question that people generally care about.
The process of making charcoal briquettes can be divided into five steps:
Firstly, fire the raw materials in a rotary kiln. During the one-week combustion process, the temperature needs to be maintained at approximately 840-950 °F (450-510 °C).
After the end of combustion, close the air inlet, and after one to two hours of exhaust, close the exhaust hole. After a two-week cooling period, empty the kiln and crush the carbonized wood (charcoal).
Use a hammer crusher or roller crusher to crush the carbonized wood. Although different types of wood such as bark, dry wood chips, wet wood and so on should be crushed to different sizes, generally they can be crushed into pieces of charcoal to 5mm below to make high-quality charcoal briquettes.
Then a drying process is needed. If the water content exceeds the empirical upper limit, the temperature will rise and the volume will expand suddenly, which is easy to cause an explosion. If the moisture content is too low, it will be difficult to mold. Use a dryer to reduce its moisture content to the level required for briquettes formation by about half (to about 15%).
Briquetting is a key step in charcoal molding. After the raw materials enter the ball press, they will be subjected to three kinds of forces, namely the main driving force of the briquette machine, the friction force and the centripetal force of the wall.
Due to moisture, adhesives, temperature (about 105 °F or 40 °C) and pressure of the rollers of the briquetting machine, the charcoal briquettes can maintain their shape when they fall from the bottom of the machine.
Feed the charcoal briquettes into the dryer for about three to four hours to heat them to 275 °F (135 °C) and reduce the moisture to about 5%.
After production, bag the charcoal briquettes immediately or stored them in silos. Following the above steps, charcoal briquettes will be produced at a production rate of 2200-20,000 pounds (1-9 metric tons) per hour.
