How does it work metal kiln in charcoal production
A metal kiln is commonly used in charcoal production to convert wood into charcoal through a process called pyrolysis. Here’s how it works:
1. Preparation of wood: The wood is first cut into small pieces and stacked inside the metal kiln. The size and arrangement of the wood pieces can affect the quality and yield of charcoal produced.
2. Sealing the kiln: Once the wood is stacked inside the kiln, it is sealed tightly to ensure that there is limited airflow. This helps in controlling the temperature and creating an oxygen-deficient environment necessary for the pyrolysis process.
3. Heating the kiln: The kiln is then heated to a high temperature, usually between 400-600 degrees Celsius. The heat causes the wood to release volatile compounds like water and gases, leaving behind carbon-rich charcoal.
4. Pyrolysis process: During pyrolysis, the wood undergoes thermal decomposition in the absence of oxygen. This process breaks down the wood into charcoal, while releasing gases and liquids which can be collected and used as by-products.
5. Cooling and harvesting: Once the charcoal is formed, the kiln is cooled down before opening it to harvest the charcoal. The charcoal is then sorted, crushed, and packaged for sale or further processing.
Overall, the metal kiln provides a controlled environment for the pyrolysis process to take place, resulting in the production of high-quality charcoal.