Is the earthen kiln charcoal burned inside or outside? 10

Clay kiln firing method: it is the use of fuel (wood) direct heating, that is, the heat generated by the combustion of fuel at the kiln mouth rises to the top of the kiln, and then diffuses to the kiln, most of which the hot air flow flows in the upper layer, and a small part of the heat radiates to the surroundings, which is slowly dried from top to bottom and pre-carbonized; Burning part of the bamboo in the kiln makes the temperature in the kiln continue to rise, remove the volatile substances, and the flue gas in the kiln circulates and flows, and the heat and temperature at each point are basically uniform, and the carbonization and refining stages are completed to obtain dense bamboo charcoal. The clay kiln firing method usually has stages such as smoking pre-drying, drying, pre-carbonization, carbonization, calcination (refining), and natural cooling.

Each stage has different temperatures, the smoke pre-drying stage is 60 100, the drying stage is 100 150, the pre-carbonization stage is 150 270, the carbonization stage is 270 450, and the calcination stage is about 450 to 1000. Judging from the current process of charcoal burning in the kiln, the temperature and carbonization speed of each stage are "eye-looking, nose-smelling" by the operator, one is to observe the changes of the chimney and the smoke at the kiln door; The second is determined by smelling smoke. The fresh bamboo used in the earthen kiln is generally placed outdoors for about a week, and it takes about 1 week to smoke and pre-dry it in the kiln, and it takes a week to cool naturally to the kiln temperature of 50 60, and it generally takes 2 days to leave the kiln.

Therefore, it generally takes 25 to 30 days from kiln loading to charcoal, and the yield of bamboo charcoal is generally about 20%. The process is reasonable, and the yield of oxidative combustion in the later stage is less than 20%, otherwise it will be less than 20%, or even lower (due to air leakage or excessive air ingress). The cost of the earthen kiln is cheap, the refining temperature is high, and the density of bamboo charcoal is large, but the quality stability is poor and the yield is not high.

Bamboo charcoal manufacturers in Suichang, Quzhou and other provinces in Zhejiang Province all use this kind of clay kiln to burn bamboo charcoal.

If it is burned inside, it should be oxygen-free during the burning process.

There are two kinds of preparation methods: kiln firing method, using soil to build a kiln, full of wood, burning from the kiln door or fire door, so that the wood is carbonized in the kiln, and the volatiles escape and the charcoal remains; Dry distillation, i.e., dry distillation of wood. According to the extinguishing method of the kiln, there are two kinds of black charcoal and white charcoal.

Brief introduction of charcoal kiln: there are many forms and structures of kilns, such as Zhejiang kiln, carp kiln, wooden scoop kiln, Hunan wood kiln and Sichuan wood kiln, fast iron kiln, machine kiln and so on. Usually, the method of extinguishing the flame in the kiln is called the kiln extinguishing method, and the obtained charcoal is called "black charcoal".

When the wood is carbonized in the kiln, it is taken out of the kiln while it is hot, and then the method of extinguishing the fire with wet sand is called the extinguishing method outside the kiln. During the flame-outing process, the charcoal is calcined in contact with the air, and the outside of the charcoal is oxidized, and the resulting white ash adheres to the charcoal, which is called "white charcoal". White charcoal is harder than black charcoal.

Summary. Hello! Dear, the charcoal burned in the earthen kiln can be sealed after the smoke is shot, depending on the actual situation.

First of all, it depends on whether you are suffocated or doused with water, basically the smoke can be sealed after shooting, but some varieties want to make charcoal, it needs to be adjusted according to the actual situation, for newcomers it is best to buy an infrared thermometer, the kiln temperature is more than 500 degrees is basically the same. In the place where charcoal is burned, a small ventilation hole is opened at the bottom of the charcoal kiln, and it is necessary to be careful not to damage other places, and it is necessary to ensure that the sealing of the charcoal kiln is not affected.

Hello! Dear, the charcoal burned in the earthen kiln can be sealed after the smoke is shot, and the specific root Sun Tang is eliminated according to the actual situation. First of all, it depends on whether you are suffocated or doused with water, basically the smoke can be sealed after shooting, but some varieties want to make charcoal, Wu Sheng needs to adjust the order according to the actual situation, for newcomers it is best to buy an infrared thermometer, the temperature of the kiln body is more than 500 degrees is basically the same.

In the place where charcoal is burned, a small ventilation hole is opened at the bottom of the charcoal kiln, and it is necessary to be careful not to damage other places, and it is necessary to ensure that the sealing of the charcoal kiln is not affected.

1. Keep the air at the bottom of the charcoal kiln unobstructed, different carbon cultivation key kilns can be used in different methods, some use bricks to make ventilation channels at the bottom, and some can dig into rubber trenches. 2. Put in the prepared firewood or fuel sticks and fill the entire charcoal kiln, which is a certain amount of exquisiteness. 3. Ignite the charcoal raw materials, logs or fuel sticks in the charcoal kiln and keep them burning.

4. After the kiln is burned up, it is necessary to pay attention to leaving a bright and smoke-pumping mouth, with a diameter of about 10 centimeters, which can be connected to the flue gas treatment measures to deal with the flue gas generated when burning charcoal. 5. The earthen kiln, commonly known as the cave, is a form of residential architecture, mainly distributed in the Loess Plateau area, and is a characteristic building in Shanxi Province and Shaanxi Province. 6. Because the Loess Plateau is relatively lacking in building materials such as wood and stone and the fuel required for burning bricks and tiles, there is a dense loess layer with fine texture and Shaanxi caves.

Caves, especially earthen kilns, take full advantage of this situation. The external soil layer is conducive to indoor constant temperature and sound insulation. Underneath is the floor of the ground that can be heavily load-bearing.

There are not many flammable materials, so fires do not spread easily.

1. The first copy process of the earth-making kiln: take the soil block.

2. The soil clod is also very particular, the size should be moderate, the best is a dry clod, and the soft and hard are the best.

3. Start to build the earth kiln, the second process: the kiln. The kiln is a handicraft work, which can be built in one go, and those who do not need to rework should be masters.

4. Be careful when building a kiln, so as not to waste all your efforts, many inexperienced foodies are often angry to death, and they can't build a kiln for a long time. Thousands of high-rise buildings rise from the ground, build the kiln, the foundation of the kung fu is very particular, the bottom is unstable, half of the brick, it becomes the kiln collapse.

The earthen kiln burns charcoal, and the technique is bai

The operation is mainly on two sides: 1The construction of the kiln zhi burning charcoal is actually called oxygen-free carbonization, dao its construction kiln pass.

The inner key lies in the sealing aspect, intake and exhaust, and easy to install the kiln, easy to seal, etc. 2.Carbonization technology, of course, this requires a certain amount of experience, the general order is to load the kiln, ignite, at the beginning to give enough oxygen to burn, and when it is burned to half or 5 molecules 2, close the oxygen that is, seal the kiln door, let it slowly burn and decompose in a state of lack of oxygen, decompose carbon monoxide, wood tar, wood vinegar and other harmful gases, leaving only the charcoal substance, that is, charcoal.

1. Open a small vent at the bottom of the charcoal kiln, be careful not to destroy other places, and ensure that the sealing of the charcoal kiln is not affected;

2. Keep the air at the bottom of the charcoal kiln unobstructed, different charcoal kilns can use different methods, some use bricks to make ventilation channels at the bottom, and some dig trenches;

3. Put in the prepared firewood or fuel sticks and fill the entire charcoal kiln;

4. Ignite the carbon raw materials in the charcoal kiln and keep burning;

5. After the kiln is burned, seal the mouth, pay attention to leave a smoke mouth, about ten centimeters in diameter, this opening can be connected to the flue gas treatment measures to deal with the flue gas generated when burning charcoal;

6. Pay attention to the situation of the smoke, when there is a blue closed old smoke, the charcoal in the kiln begins to burn in the morning, at this time the charcoal kiln and the vent should be closed to ensure that no air enters the whole charcoal kiln, and the charcoal has entered the carbonization period at this time;

7. After a certain period of time, the charcoal can be cooled after pouring water on the charcoal.

Summary. Hello, when the fire is lit, when the coal is thrown, there is black smoke, that is, the coal is not burned, the white smoke is that the bricks are not dry, and the white smoke is emitted when the weather is hot in summer, and there is less oxygen in the hot weather, and the kiln is the same as people, and it is not easy to burn without wind and oxygen. White smoke can also be seen when it rains, and that's because the air is humid; Yellow smoke and too much coal and sulfur.

The bricks are dry, the fire is burned evenly, it is a faint blue smoke, and there is a little white smoke, at this time the charcoal kiln should be closed, and the ventilation holes below should also be closed to ensure that no air enters the entire charcoal kiln.

Hello, when the fire is lit, when the coal is thrown, there is black smoke, that is, the coal is not burned locally, the white smoke is that the bricks are not dry, and the white smoke is emitted when the weather is hot in summer, the hot day is less oxygen, the kiln is the same as people, there is no wind and no oxygen is not easy to burn. White smoke can also be seen when it rains, because the air is clear and humid; Yellow smoke and too much coal and sulfur. The bricks are dry, the fire is burned evenly, it is a faint blue smoke, and there is a little white smoke, at this time, the charcoal kiln must be closed, and the ventilation holes below must also be closed, and Buchai ensures that no air enters the entire charcoal kiln.

Because the whole charcoal is closed, you can only judge the situation inside by the smoke.

After it has been fully burned, it needs to be completely sealed, and then the charcoal needs to be smothered<><

When using an earthen kiln to burn charcoal, it is necessary to pay attention to the fire condition of the charcoal. First of all, the charcoal needs to be in a stable burning state, so that the flame can last for a long time. If the charcoal is placed in the earthen kiln, you can judge whether the fire is strong enough by checking the color of the flame.

The normal color should be cyan, while an excessively hot or cold flame will turn dark red, at which point it should be adjusted to maintain normal combustion.

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We're glad to answer your questions! The clay kiln burns charcoal, so look at the fire to see the pores left by the bottom of the clear potatoes, and the firewood in the pores is on fire. Then close all the pores and the top holes.

After three days, the kiln was opened, and the charcoal was successfully fired. Extended dataCharcoal is the product of pyrolysis of wood materials in a hypoxic state. It has the nature of the answerer.

Color, generally speaking, charcoal fired at different temperatures, the color of its appearance is different, charcoal fired at 2500C, its surface is brown, not easy to break; Charcoal fired at 300-4500C, the surface of which is black; When the firing temperature reaches more than 7000C, its surface is not only black, but also has a black luster, and when beaten, it makes a loud metallic sound. The mechanical strength of charcoal is higher along the longitudinal direction, lower in the radial direction, and lowest in the chordal direction. When the temperature of the fired fire is the same, the strength of the charcoal increases with the increase of firing time.

Hope mine can help you! <>