How to use the charcoal furnace charcoal mechanism charcoal

Mechanism of high-temperature charcoal

The earth kiln is generally dug out of the earth cliffs on the hillside; the mouth is very small, can only drill into a person, the belly is large, about one meter five high, three or four meters deep, the back of the kiln to open a smoke hole to the ground on the cliffs, the kiln ground under the stay an air intake channel.

With the earth kiln earth method of charcoal firing, there are still many tricks must pay attention to:

First, picking wood. After the trees are cut down, they are sawed into four-foot-long sections, and then sorted and grouped together according to the thickness of the trees. Because the wood has to be burned in the kiln, the fire can be mastered so that the wood of different thicknesses in a kiln can be turned into charcoal at the same time.

Second, load the kiln, load the kiln is also very delicate; cut off the trunk of the tree to stand one by one in the kiln, the thickest, stacked on the bottom, the thinnest stacked on top. Wood and wood between the gap, not too large, too large a gap, too much air circulation, ventilation is too good, the wood to get full combustion, it will burn into ashes. Pile it too close, not enough air circulation, the wood doesn't get the burn it needs, it won't turn into charcoal. Therefore, the master has a motto called "leave one in every four", meaning that for a four-inch diameter of wood, leave a one-inch gap. In each kiln, four layers of wood can be stacked, with the top layer being the thinnest.

Third, the kiln. When the wood is stacked, the kiln is sealed. Kiln mouth left four inches in diameter size, then, start the fire, the fire from the hole into the charcoal kiln, the fire mouth in the lower part of the charcoal kiln, such as the kiln mouth of the trunk near the fire, the kiln mouth should be sealed with soil, leaving only the face of the air intake for oxygen to continue to burn, the kiln top smoke hole smoke, the beginning of the color of the smoke, the beginning of the white with black, the charcoal process will be a large amount of white smoke. When the white smoke is less and less (mainly water vapor is discharged), followed by blue smoke (charcoal begins to burn), then immediately the smoke hole and the following air intake ducts are all sealed, the bottom of the ventilation holes should also be closed to ensure that the entire charcoal kiln has no air into the kiln. The charcoal in the kiln will continue to burn for another three to four hours. A few days later, when the fire in the kiln is extinguished and the temperature is not very high, the kiln can be opened

Fourth, open the kiln. Charcoal gangs down through the generations is an axe, big axe swing, split open the sealed kiln mouth, out of the charcoal men and horses, has long been ready, immediately with great speed, pass the buckets, to the kiln drenching. This is the most thrilling moment, the kiln out of the poisonous gas in the sky, the sound of water into the kiln to go, deafening, coupled with the people who participate in the water, fast action, all the way to yell. The success of a kiln of charcoal depends on whether the work at this time is well coordinated. When the water is drenched into the kiln and no more white gas comes out, the kiln is ready to be discharged. All participants in the kiln, all water soaked towel, cover the mouth and nose, so that there is a certain degree of anti-virus effect. In the case of insufficient oxygen, wood burning in the kiln, the whole kiln, full of carbon monoxide, once the kiln, a large number of carbon monoxide, take advantage of the opportunity to escape, will naturally cause great danger. Covering the mouth and nose with a wet towel is the easiest way to prevent inhalation of carbon monoxide,

The earth kiln can also be made of steel plate:

1, in the charcoal burning container (charcoal kiln) at the bottom of the opening of a 5-centimeter-diameter ventilation holes, and pay attention to ensure that do not destroy the other places to ensure that the kiln's airtightness will not be affected.

2, pay attention to the bottom of the charcoal kiln to keep the air unimpeded, different charcoal kiln can be used in different ways, some of the bottom of the pad bricks made of airway is also a good way.

3, in its top cover, pay attention to leave a smoke outlet, about ten centimeters.