A continuous carbonization system

Abstract

The application discloses a continuous carbon production system, which comprises a drying furnace, a pyrolysis furnace, a burner and a first heat exchanger, wherein the drying furnace is provided with a first air inlet, the pyrolysis furnace is provided with a first feeding port, a second air inlet, a second air outlet, the first feeding port is communicated with a first discharging port, the burner is provided with a combustion chamber, the combustion chamber is provided with a third air inlet and a third air outlet, the third air inlet is communicated with the second air outlet, the first heat exchanger comprises a heat exchange chamber, a heat exchange pipe assembly, an air inlet and an air outlet, the heat exchange pipe assembly comprises an air inlet cavity, a first heat exchange pipe and an air outlet cavity, the air inlet cavity and the air outlet cavity are communicated through the first heat exchange pipe, the air inlet cavity is communicated with the third air outlet, the air outlet cavity is communicated with the second air inlet, and the air outlet is communicated with the first air inlet. Therefore, the first heat exchanger is additionally arranged, the flue gas temperature entering the pyrolysis furnace can be effectively controlled, and the target output rate and output quality of the carbonization product can be ensured.

Description

Technical Field

[0001] This invention relates to the field of pyrolysis charcoal production technology, and in particular to a continuous charcoal production system. Background Technology

[0002] Replacing traditional fossil fuels with biomass renewable energy is one of the important ways to reduce greenhouse gas emissions, achieve carbon peaking and carbon neutrality. Among them, thermochemical pretreatment of raw biomass (agricultural and forestry biomass residues) can produce biochar with uniform physicochemical properties and high calorific value, which can replace traditional fossil coal of the same quality.

[0003] The biomass pyrolysis carbonization process can be divided into the following stages: ① Drying stage: The biomass material absorbs heat in the carbonization reactor, and the moisture evaporates first, while the internal chemical composition of the biomass remains almost unchanged; ② Volatile decomposition stage: The biomass continues to absorb heat to about 200℃, the chemical bonds of the internal macromolecules break and rearrange, the organic matter gradually volatilizes, and the internal thermal decomposition reaction of the material begins. Under oxygen-deficient conditions, a small amount of the gaseous combustibles of the volatiles burn, and this combustion is a static permeation diffusion combustion, which can provide heat support for the decomposition of the material layer by layer; ③ Full carbonization stage: While the material undergoes rapid thermal decomposition, it produces liquid products such as wood tar and acetic acid, as well as combustible gases such as methane and ethylene. As most of the volatiles are separated and precipitated, the final solid product is coke composed of carbon and ash.

[0004] In actual production, the energy consumption for maintaining pyrolysis is relatively high. To address this, patent publication CN116814287A discloses a biomass pyrolysis carbonization system. This system replenishes the energy consumed during pyrolysis by burning pyrolysis gas to release energy, thus reducing energy consumption during pyrolysis. Simultaneously, the remaining heat is used to pre-dry the biomass raw materials, thereby recovering some heat and improving carbonization efficiency. However, in this system, the flue gas temperature after combustion in the burner is high. Different biomass raw materials and desired products have different requirements for pyrolysis temperature. Directly releasing this high-temperature flue gas into the furnace, while reducing energy consumption, is not conducive to controlling the expected pyrolysis process and the desired products. Summary of the Invention

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a continuous charcoal production system that uses a heat exchanger to cool the flue gas, thereby achieving controllability of the flue gas temperature entering the pyrolysis furnace.

[0006] A continuous charcoal production system according to an embodiment of the present invention includes:

[0007] A drying oven, wherein the drying oven is provided with a first air inlet, a first air outlet and a first material outlet;

[0008] A pyrolysis furnace, wherein the pyrolysis furnace is provided with a first feed inlet, a second air inlet, a second air outlet and a second discharge outlet, and the first feed inlet is connected to the first discharge outlet;

[0009] A burner, wherein a combustion chamber is provided inside the burner, and a third air inlet and a third air outlet are provided on the combustion chamber, and the third air inlet is connected to the second air outlet;

[0010] The first heat exchanger includes a heat exchange chamber, a heat exchange tube assembly, an air inlet, and an air outlet. The heat exchange tube assembly is disposed in the heat exchange chamber and includes an air inlet chamber, a first heat exchange tube, and an air outlet chamber. The air inlet chamber and the air outlet chamber are connected through the first heat exchange tube. The air inlet chamber is connected to the third air outlet chamber, the air outlet chamber is connected to the second air inlet chamber, and the air outlet chamber is connected to the first air inlet chamber.

[0011] According to some embodiments of the present invention, the continuous charcoal production system further includes: a second heat exchanger, the second heat exchanger including a hot water chamber and a second heat exchange tube, the second heat exchange tube being disposed in the hot water chamber, one end of the second heat exchange tube being connected to the exhaust port and the other end being connected to the first air inlet.

[0012] According to some embodiments of the present invention, the heat exchange tube assembly further includes: a dust removal chamber disposed at the bottom of the heat exchange chamber, an air inlet chamber and an air outlet chamber disposed at the top of the heat exchange chamber, a portion of the first heat exchange tubes being vertically connected between the air inlet chamber and the dust removal chamber, and a portion of the first heat exchange tubes being disposed between the dust removal chamber and the air outlet chamber.

[0013] According to some embodiments of the present invention, the heat exchange tube assembly further includes: a transition cavity, the transition cavity being disposed at the top of the heat exchange chamber, a portion of the heat exchange tubes being connected between the transition cavity and the dust removal cavity, and the dust removal cavity being provided with at least one baffle to form a serpentine passage.

[0014] According to some embodiments of the present invention, the drying oven includes: a first rotary kiln body, a first feed box and a first discharge box, the two ends of the first rotary kiln body are dynamically sealed to the first feed box and the first discharge box respectively, the first air inlet and the first discharge outlet are both provided on the first discharge box, and the first air outlet is provided on the first feed box.

[0015] According to some embodiments of the present invention, the pyrolysis furnace includes: a second rotary furnace body, a second feed box and a second discharge box, the two ends of the second rotary furnace body being dynamically sealed to the second feed box and the second discharge box respectively, the first feed port and the second air inlet being provided on the second feed box, and the second air outlet and the second discharge port being provided on the second discharge box.

[0016] According to some embodiments of the present invention, the continuous charcoal production system further includes: a feeding device and a hopper, one end of the feeding device being connected to the hopper and the other end being connected to the first feed inlet, and the feeding device being a screw feeder.

[0017] According to some embodiments of the present invention, the continuous charcoal production system further includes: a discharge device, one end of which is connected to a second discharge port, and the shell of the discharge device is provided with a liquid cooling chamber for cooling the charcoal.

[0018] According to some embodiments of the present invention, the liquid cooling chamber is provided with a liquid inlet and a liquid outlet, the liquid outlet being located on the side closer to the second discharge port, and the liquid inlet being located on the side farther away from the second discharge port.

[0019] According to some embodiments of the present invention, the burner further includes: a fuel inlet, a fuel outlet, and a mesh partition, wherein the mesh partition is disposed in the combustion chamber, the fuel inlet is disposed on a side wall of the combustion chamber near the mesh partition, and the fuel outlet is disposed on a side wall of the combustion chamber near the mesh partition.

[0020] Beneficial effects:

[0021] This invention can effectively regulate the temperature of flue gas entering the pyrolysis furnace by adding a first heat exchanger, ensuring the target yield and quality of carbonized products. In addition, it can fully recover and utilize the heat of flue gas, reducing energy consumption during pyrolysis char production and drying. Attached Figure Description

[0022] The advantages of the above and / or additional aspects of the present invention will become apparent and readily understood from the following description of the embodiments with accompanying drawings, in which:

[0023] Figure 1 This is a schematic diagram of a continuous charcoal production system according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of a first heat exchanger according to a certain embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the first heat exchanger according to another embodiment of the present invention;

[0026] Figure 4This is a schematic diagram of the structure of the second heat exchanger according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the burner according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the feeder according to an embodiment of the present invention.

[0029] Figure label:

[0030] 100. Continuous charcoal production system;

[0031] 1. Drying oven; 11. First air inlet; 12. First air outlet; 13. First discharge outlet; 14. First rotary kiln body; 15. First feed box; 16. First discharge box;

[0032] 2. Pyrolysis furnace; 21. First feed inlet; 22. Second air inlet; 23. Second air outlet; 24. Second discharge outlet; 25. Second rotary furnace body; 26. Second feed box; 27. Second discharge box;

[0033] 3. Burner; 31. Combustion chamber; 32. Third air inlet; 33. Third air outlet; 34. Fuel inlet; 35. Fuel outlet; 36. Mesh baffle;

[0034] 4. First heat exchanger; 41. Heat exchange chamber; 42. Air inlet; 43. Air outlet; 5. Heat exchange tube assembly; 51. Air inlet chamber; 52. First heat exchange tube; 53. Air outlet chamber; 54. Dust removal chamber; 541. Baffle plate; 55. Transition chamber;

[0035] 6. Second heat exchanger; 61. Hot water chamber; 62. Second heat exchange tube;

[0036] 7. Feeding device; 8. Hopper;

[0037] 9. Discharge device; 91. Liquid cooling chamber; 92. Liquid inlet; 93. Liquid outlet. Detailed Implementation

[0038] The following is for reference. Figures 1 to 6 A continuous charcoal production system 100 according to an embodiment of the present invention will be described in detail below. It should be noted that the embodiment described with reference to the accompanying drawings is exemplary.

[0039] Combination Figures 1 to 3As shown, a continuous charcoal production system 100 according to an embodiment of the present invention includes at least: a drying furnace 1, a pyrolysis furnace 2, a burner 3, and a first heat exchanger 4. The drying furnace 1 is provided with a first air inlet 11, a first air outlet 12, and a first discharge outlet 13. The pyrolysis furnace 2 is provided with a first feed inlet 21, a second air inlet 22, a second air outlet 23, and a second discharge outlet 24. The first feed inlet 21 communicates with the first discharge outlet 13. The burner 3 is provided with a combustion chamber 31, and the combustion chamber 31 is provided with a third air inlet 32 ​​and a third air outlet 4. The first heat exchanger 4 includes: a heat exchange chamber 41, a heat exchange tube assembly, an air inlet 42, and an air outlet 43. The heat exchange tube assembly is located in the heat exchange chamber 41 and includes: an air inlet chamber 51, a first heat exchange tube 52, and an air outlet chamber 53. The air inlet chamber 51 and the air outlet chamber 53 are connected by the first heat exchange tube 52. The air inlet chamber 51 is connected to the third air outlet 33, the air outlet chamber 53 is connected to the second air inlet 22, and the air outlet 43 is connected to the first air inlet 11.

[0040] Taking biomass pyrolysis char production as an example, the raw material is pre-dried in the drying furnace 1, which helps to improve the pyrolysis efficiency of the raw material in the pyrolysis furnace 2. The dried raw material enters the pyrolysis furnace 2 for high-temperature pyrolysis, producing biochar and pyrolysis combustible gas at the same time. The produced biochar leaves the pyrolysis furnace 2 directly through the second discharge port 24. The produced pyrolysis combustible gas enters the burner 3 for complete combustion. The combustion can produce high-temperature flue gas. Since the flue gas contains a lot of heat, the heat can be recovered and utilized to supplement the pyrolysis consumption.

[0041] Specifically, when the high-temperature flue gas enters the first heat exchanger 4, it exchanges heat with the low-temperature air entering through the air inlet 42 at the first heat exchange tube 52. The high-temperature flue gas after heat exchange is then introduced into the pyrolysis furnace 2 to maintain pyrolysis consumption, thereby reducing the energy consumed by pyrolysis and improving energy efficiency. At the same time, the low-temperature air, after being heated by heat exchange, can be introduced into the drying furnace 1 for pre-drying the charcoal-making raw materials, further improving energy efficiency. It should be noted that the aforementioned low-temperature air usually refers to room temperature air, and the temperature can fluctuate within the range of room temperature air by tens of degrees.

[0042] In the pyrolysis process, pyrolysis temperature is one of the factors affecting the carbonization products. For example, under pyrolysis conditions below 200℃, the main products are liquids and gases; when the pyrolysis temperature rises to 300℃, the products begin to transform into solids; when the pyrolysis temperature rises to 500℃, the mass and calorific value of the solid products begin to increase, and with the increase of pyrolysis temperature, the calorific value and mass of the solid products show a trend of first increasing and then decreasing. In addition, the effect of pyrolysis temperature on carbonization products is also related to the properties of the raw materials. For example, cellulose materials such as wood and straw easily form tar and gases at high temperatures, while carbonaceous materials easily form coke at high temperatures.

[0043] Therefore, when the charcoal-making system requires a high temperature during pyrolysis, the heat exchange between the low-temperature air and the high-temperature flue gas can be reduced by decreasing the flow rate of the low-temperature air entering the heat exchange chamber 41, thereby ensuring the temperature of the high-temperature flue gas entering the pyrolysis furnace 2. Similarly, if the charcoal-making system requires a low temperature during pyrolysis, the flow rate of the low-temperature air entering the heat exchange chamber 41 can be increased to increase the heat exchange between the low-temperature air and the high-temperature flue gas, thereby reducing the temperature of the high-temperature flue gas entering the pyrolysis furnace 2. Simultaneously, the heat exchanged with the low-temperature air will be channeled into the drying furnace 1 to participate in the drying of the raw materials, thus helping to improve the subsequent pyrolysis efficiency.

[0044] This not only effectively controls the temperature of the flue gas entering the pyrolysis furnace 2, ensuring the target yield and quality of carbonized products, but also fully recovers and utilizes the heat of the flue gas, reducing the energy consumption of pyrolysis char production.

[0045] Furthermore, such as Figure 1 and Figure 4 As shown, the continuous charcoal production system 100 also includes a second heat exchanger 6, which includes a hot water exchange chamber 61 and a second heat exchange tube 62. The second heat exchange tube 62 passes through the hot water exchange chamber 61, with one end connected to the exhaust port 43 and the other end connected to the first air inlet 11. After the low-temperature air in the heat exchange chamber 41 exchanges heat with the high-temperature flue gas, the temperature of the low-temperature air depends on the temperature required for pyrolysis. If the temperature required for pyrolysis is not high, a large portion of the heat from the high-temperature flue gas will be exchanged to the low-temperature air. This can easily lead to the temperature of the low-temperature air entering the drying furnace 1 being too high, thus exceeding the reasonable temperature range for raw material drying and hindering the drying of the raw materials.

[0046] Therefore, a second heat exchanger 6 is added between the first heat exchanger 4 and the drying furnace 1. The liquid in the hot water chamber 61 is used for heat exchange to remove excess heat from the low-temperature air that exceeds the drying temperature range, thereby maintaining the temperature in the drying furnace 1 within a reasonable range and avoiding affecting the smooth progress of subsequent pyrolysis and char production.

[0047] In some embodiments of the present invention, such as Figure 2 As shown, the heat exchange tube assembly 5 also includes a dust removal chamber 54. Specifically, the dust removal chamber 54 can be located at the bottom of the heat exchange chamber 41, while the inlet chamber 51 and the outlet chamber 53 are both located at the top of the heat exchange chamber 41. A portion of the first heat exchange tubes 52 are vertically connected between the inlet chamber 51 and the dust removal chamber 54, and another portion is located between the dust removal chamber 54 and the outlet chamber 53. After the high-temperature flue gas enters the dust removal chamber 54 through the vertically arranged first heat exchange tubes 52, the dust in the high-temperature flue gas can settle within the dust removal chamber 54, thereby reducing the dust content in the high-temperature flue gas and preventing dust accumulation from clogging the pipes.

[0048] Preferably, the heat exchange tube assembly 5 further includes a transition cavity 55, which is located at the top of the heat exchange chamber 41 and between the inlet chamber 51 and the outlet chamber 53. A portion of the first heat exchange tube 52 is connected between the transition cavity 55 and the dust removal chamber 54. Furthermore, the dust removal chamber 54 is provided with at least one baffle 541 to form a serpentine pathway. Specifically, the process of high-temperature flue gas entering the dust removal chamber 54 through the first heat exchange tube 52 and then leaving the dust removal chamber 54 through the first heat exchange tube 52 can achieve a primary dust reduction effect. Therefore, the transition cavity 55 and the baffle 541 can form a serpentine pathway, which is beneficial for achieving multiple dust settling, thereby reducing the dust content in the high-temperature flue gas.

[0049] In some embodiments of the present invention, such as Figure 1 As shown, the drying furnace 1 includes a first rotary furnace body 14, a first feed box 15, and a first discharge box 16. The two ends of the first rotary furnace body 14 are dynamically sealed to the first feed box 15 and the first discharge box 16, respectively. A first air inlet 11 and a first discharge outlet 13 are both located on the first discharge box 16, and a first air outlet 12 is located on the first feed box 15. Specifically, after the charcoal-making raw material enters the drying furnace 1, it is dried under the continuously flowing air temperature at the first air inlet 11. During this process, the charcoal-making raw material moves from the first feed box 15 side to the first discharge box 16 side, and the hot air flows from the first discharge box 16 to the first feed box 15 side. This relative movement between the charcoal-making raw material and the hot air facilitates better removal of the humid and hot air generated after drying from the drying furnace 1. Furthermore, this direct contact heat exchange drying method can greatly improve drying efficiency.

[0050] Similarly, the pyrolysis furnace 2 includes a second rotary furnace body 25, a second feed box 26, and a second discharge box 27. The two ends of the second rotary furnace body 25 are dynamically sealed to the second feed box 26 and the second discharge box 27, respectively. The first feed inlet 21 and the second air inlet 22 are both located on the second feed box 26, and the second air outlet 23 and the second discharge outlet 24 are both located on the second discharge box 27. During use, when the charcoal-making raw materials are pyrolyzed in the pyrolysis furnace 2, the continuous rotation of the second rotary furnace body 25 helps ensure sufficient contact between the charcoal-making raw materials and the high-temperature flue gas, effectively improving pyrolysis efficiency.

[0051] In some embodiments of the present invention, such as Figure 1 As shown, the continuous charcoal production system also includes a feeding device 7 and a hopper 8. One end of the feeding device 7 is connected to the hopper 8, and the other end is connected to the third feed box. Specifically, the combination of the hopper 8 and the feeding device 7 can better control the rate at which the charcoal-making raw materials enter, thereby more accurately controlling the amount of material fed per unit time, and thus controlling the uniformity of the pyrolysis reaction of the raw materials in the pyrolysis furnace 2, avoiding the situation where excessive local accumulation leads to insufficient pyrolysis.

[0052] Preferably, the feeding device 7 adopts a screw feeder, which helps to improve the overall sealing of the pyrolysis furnace 2 and prevents the random escape of high-temperature hot flue gas, thus affecting the safety of system operation.

[0053] In some embodiments of the present invention, such as Figure 1 and Figure 6 As shown, the continuous charcoal production system also includes a discharge device 9. One end of the discharge device 9 is connected to the second discharge port 24. The shell of the discharge device 9 is provided with a liquid cooling chamber 91. When the charcoal is discharged from the pyrolysis furnace 2, the temperature of the charcoal is very high, making it inconvenient to collect directly. Therefore, as the charcoal is gradually discharged through the discharge device 9, the liquid cooling chamber 91 can accelerate the cooling of the charcoal, thereby reducing the temperature of the charcoal when it falls into the charcoal collection box and improving the charcoal collection efficiency.

[0054] Furthermore, the liquid cooling chamber 91 is provided with a liquid inlet 92 and a liquid outlet 93. The liquid outlet 93 is located on the side close to the second discharge port 24, and the liquid inlet 92 is located on the side away from the second discharge port 24. In this way, the liquid flow direction in the liquid cooling chamber 91 is opposite to the direction of carbon discharge, which helps to improve the efficiency of heat exchange and enhance the cooling effect.

[0055] In some embodiments of the present invention, such as Figure 1 and Figure 5 As shown, the burner 3 also includes a fuel inlet 34, a fuel outlet 35, and a mesh baffle 36. The mesh baffle 36 is located inside the combustion chamber 31. The fuel inlet 34 is located on the side wall of the combustion chamber 31 near the mesh baffle 36. The fuel outlet 35 is located on the side wall of the combustion chamber 31 near the mesh baffle 36.

[0056] In use, the fuel enters the combustion chamber 31 through the fuel inlet 34 and is burned on the mesh partition 36. When the pyrolysis gas generated in the pyrolysis furnace 2 enters the combustion chamber 31, it will be fully burned under the action of fuel combustion. It should be noted that the above fuel is a solid fuel, for example, the solid fuel can be biomass pellet fuel.

[0057] Specifically, the concentration and temperature of pyrolysis gas are required during combustion. In traditional methods, pyrolysis gas is usually directly ignited, but this method is easily affected by the concentration, which can lead to flameout and cause adverse chain reactions. However, with the burner 3 structure in this embodiment, the stability of solid fuel combustion can be utilized. No matter what changes occur in the concentration of pyrolysis gas generated in the pyrolysis furnace 2, it will be burned when passing through the mesh partition 36, thereby effectively ensuring the stable operation of the system.

[0058] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0060] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A continuous charcoal production system, characterized in that, include: A drying oven, wherein the drying oven is provided with a first air inlet, a first air outlet and a first material outlet; A pyrolysis furnace, wherein the pyrolysis furnace is provided with a first feed inlet, a second air inlet, a second air outlet and a second discharge outlet, wherein the first feed inlet and the first discharge outlet are connected; A burner, wherein a combustion chamber is provided inside the burner, and a third air inlet and a third air outlet are provided on the combustion chamber, the third air inlet being connected to the second air outlet; The first heat exchanger includes a heat exchange chamber, a heat exchange tube assembly, an air inlet, and an air outlet. The heat exchange tube assembly is disposed in the heat exchange chamber and includes an air inlet chamber, a first heat exchange tube, and an air outlet chamber. The air inlet chamber and the air outlet chamber are connected through the first heat exchange tube. The air inlet chamber is connected to the third air outlet chamber, the air outlet chamber is connected to the second air inlet chamber, and the air outlet chamber is connected to the first air inlet chamber.

2. The continuous charcoal production system according to claim 1, characterized in that, Also includes: The second heat exchanger includes a hot water chamber and a second heat exchange tube. The second heat exchange tube is installed in the hot water chamber. One end of the second heat exchange tube is connected to the exhaust port, and the other end is connected to the first air inlet.

3. A continuous charcoal production system according to claim 1 or 2, characterized in that, The heat exchange tube assembly further includes: a dust removal chamber located at the bottom of the heat exchange chamber; an air inlet chamber and an air outlet chamber located at the top of the heat exchange chamber; a portion of the first heat exchange tubes vertically connected between the air inlet chamber and the dust removal chamber; and a portion of the first heat exchange tubes located between the dust removal chamber and the air outlet chamber.

4. A continuous charcoal production system according to claim 3, characterized in that, The heat exchange tube assembly further includes: a transition cavity, which is located at the top of the heat exchange chamber, and a portion of the first heat exchange tube is connected between the transition cavity and the dust removal cavity. The dust removal cavity is provided with at least one baffle to form a serpentine passage.

5. A continuous charcoal production system according to claim 1, characterized in that, The drying oven includes: a first rotary furnace body, a first feeding box and a first discharging box. The two ends of the first rotary furnace body are dynamically sealed to the first feeding box and the first discharging box, respectively. The first air inlet and the first discharge outlet are both located on the first discharging box, and the first air outlet is located on the first feeding box.

6. A continuous charcoal production system according to claim 1, characterized in that, The pyrolysis furnace includes: a second rotary furnace body, a second feed box and a second discharge box. The two ends of the second rotary furnace body are dynamically sealed to the second feed box and the second discharge box, respectively. The first feed port and the second air inlet are both located on the second feed box, and the second air outlet and the second discharge port are both located on the second discharge box.

7. A continuous charcoal production system according to claim 1, characterized in that, Also includes: The feeding device and the hopper are provided. One end of the feeding device is connected to the hopper, and the other end is connected to the first feed inlet. The feeding device is a screw feeder.

8. A continuous charcoal production system according to claim 1, characterized in that, Also includes: A discharge device, one end of which is connected to a second discharge port, and a liquid cooling chamber is provided on the shell of the discharge device for cooling the charcoal.

9. A continuous charcoal production system according to claim 8, characterized in that, The liquid cooling chamber is provided with a liquid inlet and a liquid outlet. The liquid outlet is located on the side closer to the second discharge port, and the liquid inlet is located on the side farther away from the second discharge port.

10. A continuous charcoal production system according to claim 1, characterized in that, The burner further includes a fuel inlet, a fuel outlet, and a mesh partition. The mesh partition is disposed in the combustion chamber. The fuel inlet is disposed on the side wall of the combustion chamber near the mesh partition, and the fuel outlet is disposed on the side wall of the combustion chamber near the mesh partition.

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