How long does it take to close the kiln for firing charcoal in an earth kiln

It takes 5-15 days to close the kiln to burn charcoal in earth kiln. According to the query related public information, the traditional charcoal earth kiln firing needs 7-15 days, the new rapid carbonization kiln firing mechanism charcoal about 5-7 days, ordinary earth kiln for wood stick carbonization in the kiln from loading to the product average time of about 5 days, the winter due to the charcoal raw materials containing water is relatively large, then it takes about a week.