Intelligent dry distillation type carbonization furnace for preparing formed bamboo charcoal and carbonization process

Abstract

The invention discloses an intelligent dry distillation type carbonization furnace for preparing formed bamboo charcoal, and belongs to the technical field of bamboo charcoal preparation devices. The intelligent dry distillation type carbonization furnace for preparing the formed bamboo charcoal comprises a furnace body used for carbonizing bamboo machine-made rods, the furnace body comprises a furnace cover, a hearth and a stainless steel inner container located in the hearth, the furnace cover is connected with the hearth in a sealed mode, heating elements are arranged on the furnace body, and the heating elements are arranged on the periphery of the hearth in an attached mode and used for heating the hearth. An electric appliance control box for controlling the heating element is arranged on one side of the furnace body, a temperature sensor is arranged in the hearth, a stainless steel material frame is arranged in the hearth and used for containing the bamboo machine-made rods needing to be carbonized, and the heating assembly is controlled through the temperature sensor and the electric appliance control box; and then the temperature in the stainless steel inner container is controlled in real time, uniform heating of the bamboo wood is achieved, and the energy utilization rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of bamboo charcoal preparation devices, and in particular to an intelligent dry distillation carbonization furnace for preparing formed bamboo charcoal. Background Art

[0002] Bamboo grows fast, is renewable, and has important ecological and economic value. Modern technological innovation has diversified the use of bamboo resources. However, the utilization rate of bamboo in the processing process is only 60%, and the remaining 40% will become bamboo waste. Traditional incineration not only seriously pollutes the environment, but also easily leads to major fire accidents.

[0003] Based on the concept of turning waste into treasure, using bamboo processing residues as raw materials to prepare high-density fuel through pressing, molding and carbonization processes will contribute to the green development of the biomass energy industry. The key lies in the development of efficient and energy-saving carbonization equipment and supporting carbonization processes. At present, the mainstream technology uses mature earth kiln production equipment and processes, which provide heat by burning part of the raw materials in earthen or brick kilns, and then burns them under oxygen-deficient conditions. This method has simple equipment and low investment, but it still has many disadvantages such as long production cycle, high defective rate, large batch differences, high labor intensity, high dependence on worker experience, and unfriendly environment. Therefore, it is urgent to develop efficient and environmentally friendly carbonization equipment.

[0004] With the continuous development of carbonization technology, dry distillation carbonization process, as an important pyrolysis technology, plays an increasingly important role in the conversion and utilization of biomass resources. Dry distillation carbonization process refers to the chemical decomposition of organic matter by heating it under anaerobic or oxygen-free conditions to obtain valuable products such as charcoal, liquid fuel (such as wood vinegar) and combustible gas. This process not only realizes the efficient recycling of resources, but also significantly reduces the dependence on fossil fuels, which has positive significance for environmental protection.

[0005] Chinese utility model patent ZL202123063927.4 discloses a retort box with a stirring device, which improves the uniformity of bamboo heating by constantly turning the bamboo charcoal during the carbonization process. Although the reproducibility of the samples is achieved to a certain extent, for the preparation of shaped bamboo charcoal, since the grading of shaped bamboo charcoal products requires a high degree of regularity in appearance, high-quality charcoal products should also keep the charcoal rods straight, flat, and free of cracks, and the operation between batches should be consistent. The above method requires turning through a stirring device, which is not conducive to maintaining the integrity and smoothness of the charcoal rods. Summary of the invention

[0006] The purpose of the present invention is to overcome the problems in the prior art and to provide an intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal.

[0007] The present invention provides an intelligent dry distillation carbonization furnace for preparing formed bamboo charcoal, comprising a furnace body, which is used to carbonize bamboo machine rods, the furnace body comprising a furnace cover, a furnace chamber and a stainless steel liner located in the furnace chamber, the furnace cover is sealed and connected to the furnace chamber, a heating element is provided on the furnace body, the heating element is fitted around the furnace chamber and is used to heat the furnace chamber, an electrical control box for controlling the heating element is provided on one side of the furnace body, a temperature sensor is provided in the furnace chamber, the temperature sensor is used to monitor the temperature in the furnace chamber in real time, and transmit information to the electrical control box to control the heating element, a stainless steel material rack is provided in the furnace chamber, and the stainless steel material rack is used to hold the bamboo machine rods that need to be carbonized.

[0008] Preferably, the furnace cover has a stepped structure, the middle of the furnace cover is convex and matches the size of the furnace cavity.

[0009] Preferably, the heating element is an alloy resistance wire heater, and the heating rate and temperature are controlled by the current or voltage output by the electrical control box.

[0010] Preferably, the furnace is made of refractory aluminum silicate ceramic fiber material, and a heat-conductive filler is filled between the furnace and the stainless steel inner tank.

[0011] Preferably, the stainless steel material rack is used to hold the pressed bamboo machine rods and to quickly lift out the carbonized products. The stainless steel material rack includes an outer frame, a plurality of spacer bars are fixedly connected to the bottom of the outer frame, a plurality of reinforcing ribs are welded to the outside of the outer frame, the bottom corners of the outer frame are fixedly connected with material rack feet, a plurality of lifting holes are opened on the top of the outer frame, and steel ropes are passed through the lifting holes.

[0012] Preferably, there is a gap between the stainless steel rack and the stainless steel inner container.

[0013] Preferably, the furnace cover is sealed with the stainless steel inner tank, the furnace cover is provided with an air outlet connected to the furnace cavity, the furnace cover is provided with a smoke exhaust pipe connected to the air outlet, the smoke exhaust pipe is used to discharge the smoke generated by carbonization, the smoke exhaust pipe is provided with an insulation sleeve, and the smoke exhaust pipe is provided with a ball valve.

[0014] Preferably, the intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal as described in claim 1 is characterized in that it also includes a flue gas purification system, the flue gas purification system includes a water washing tank, a sewage outlet and an exhaust pipe, the water washing tank is arranged on one side of the furnace body, one end of the exhaust pipe is placed in the water washing tank, the sewage outlet is provided at the bottom of the water washing tank, the exhaust pipe is connected to one side of the water washing tank, and the exhaust pipe has a 45° cut angle at the outlet end, and the end of the cut angle extends 2-3 cm into the water surface.

[0015] Preferably, a carbonization process of a smart dry distillation carbonization furnace for preparing shaped bamboo charcoal comprises the following steps:

[0016] S1, drying bamboo chips, heating and pressing them into machine-made sticks;

[0017] S2, placing the machine-made rods on the stainless steel material rack, placing them into the stainless steel inner tank as a whole through a hoisting machine, and then covering the furnace cover so that the furnace cover and the furnace chamber are tightly sealed;

[0018] S3, controlling the heating element through the temperature sensor and the electrical control box to heat and carbonize the furnace cavity and the internal machine-made rods, wherein the carbonization process includes four stages: drying, pre-carbonization, full carbonization and refining;

[0019] S3, drying temperature is room temperature to 160 ℃, drying time is 8h; pre-carbonization temperature is 160-250 ℃, time is 3h; comprehensive carbonization temperature is 250-450 ℃, carbonization time is 5h; refining temperature is 600-800 ℃, refining time is 1h;

[0020] S4. After the carbonization is completed, the carbon rods are cooled, the furnace cover is opened, the stainless steel rack is hoisted out as a whole, and the carbon products are collected.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal of the present invention places bamboo machine rods to be carbonized on a stainless steel material rack, and the stainless steel material rack is placed in a stainless steel inner tank. The heating component is controlled by a temperature sensor and an electrical control box, and then the temperature in the stainless steel inner tank is controlled in real time, thereby achieving uniform heating of the bamboo material and improving the utilization rate of energy. The shortcomings of traditional self-ignition earth kiln firing of bamboo charcoal, such as long time consumption, high work intensity, and poor reproducibility between batches, are overcome, the utilization rate of biomass and the quality of bamboo charcoal products are improved, the production cost and environmental pollution are reduced, and the green development of the biomass energy industry is promoted.

[0022] A flue gas purification system is set up to treat the flue gas generated during carbonization, so as to recover by-products such as tar and remove particles and water-soluble substances in the flue gas, making the carbonization process clean and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the intelligent dry distillation carbonization equipment of the present invention.

[0024] Figure 2 For the present invention Figure 1 Schematic diagram of the cross-sectional structure of the middle left half.

[0025] Figure 3 This is a top view of the dry distillation carbonization furnace.

[0026] Figure 4 This is a bottom view of the furnace cover.

[0027] Figure 5 This is a front cross-sectional view of the furnace cover.

[0028] Figure 6 This is a schematic diagram of a stainless steel rack.

[0029] Explanation of the accompanying drawings: 1. Furnace cover; 2. Insulation sleeve; 3. Ball valve; 4. Smoke exhaust pipe; 5. Exhaust pipe; 6. Electrical control box; 7. Heat dissipation port; 8. Furnace body; 9. Buckle; 10. Washing tank; 11. Drain port; 12. Exhaust port; 13. Insulation material; 14. Temperature sensor; 15. Stainless steel liner; 16. Furnace chamber; 17. Stainless steel rack; 18. Thermal conductive filler; 19. Lifting hole; 20. Rack foot; 21. Reinforcement rib; 22. Spacer rod. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 to Figure 6 In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the present invention belongs.

[0031] The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. "Inside", "outside", "upper", "lower", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in the present invention are not drawn strictly according to the actual proportions. The specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only schematic diagrams of the structures.

[0032] The present invention provides an intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal. Figure 1 to Figure 4As shown, it includes a furnace body 8 for carbonizing bamboo machine rods. The furnace body 8 includes a furnace cover 1, a furnace chamber 17 and a stainless steel liner 15 located in the furnace chamber 17. The furnace cover 1 is sealed and connected to the furnace chamber 17. A heating element is provided on the furnace body 8. The heating element is fitted around the furnace chamber 17 and is used to heat the furnace chamber 17. An electrical control box 6 for controlling the heating element is provided on one side of the furnace body 8. A temperature sensor 14 is provided in the furnace chamber 17. The temperature sensor 14 is used to monitor the temperature in the furnace chamber 17 in real time and transmit the information to the electrical control box 6 to control the heating element. A stainless steel material rack 16 is provided in the furnace chamber 17. The stainless steel material rack 16 is used to hold the bamboo machine rods that need to be carbonized.

[0033] The bamboo machine rods to be carbonized are placed on the stainless steel material rack 16, and the stainless steel material rack 16 is placed in the stainless steel inner tank 15. The heating component is controlled by the temperature sensor 14 and the electrical control box 6, and then the temperature in the stainless steel inner tank 15 is controlled in real time, thereby achieving uniform heating of the bamboo material and improving energy utilization. Compared with the traditional earth kiln carbonization device and process, the production time is greatly shortened, the controllability and safety of the process are improved, and the quality of the product and the reproducibility between batches are guaranteed. The furnace cover 1 is connected to the furnace 17 by the buckle 9.

[0034] Preferably, Figure 1 to Figure 6 As shown, the furnace cover 1 has a stepped structure, the middle of the furnace cover 1 is convex and matches the size of the furnace cavity 17.

[0035] The furnace cover 1 has a stepped structure, and the furnace top adopts an arched design to effectively prevent collapse. The middle of the furnace cover 1 is convex and matches the size of the furnace chamber 17 to ensure the sealing during the carbonization process, so that the temperature in the stainless steel liner 15 is constant, and the carbonization work is better.

[0036] Preferably, Figure 1 to Figure 4 As shown, the heating element is an alloy resistance wire heater, and the heating rate and temperature are controlled by outputting current or voltage through the electrical control box 6 .

[0037] The heating element is an alloy resistance wire heater. The heating rate and temperature are controlled by the output current or voltage of the electrical control box 6. The heating rate of the heating element is 0.1-5℃ / min, which can achieve precise control of the heating rate at different carbonization stages. The temperature control accuracy is ±1℃ when the temperature is constant.

[0038] Preferably, Figure 1 to Figure 4 As shown, the stainless steel inner liner 15 is made of stainless steel, the furnace 17 is made of refractory aluminum silicate ceramic fiber material, and a heat-conducting filler 18 is filled between the furnace 17 and the stainless steel inner liner 15 .

[0039] The stainless steel inner liner 15 is made of stainless steel, which has good thermal conductivity and can be used at high temperature for a long time. Stainless steel has good durability and is not easy to deform or burn. The furnace 17 is made of refractory aluminum silicate ceramic fiber material. The furnace 17 and the stainless steel inner liner 15 are filled with a thermal conductive filler 18, which has good thermal insulation and is fire-resistant to avoid high-temperature ignition problems. The gap between the furnace 17 and the stainless steel inner liner 15 is filled with a stainless steel plate to ensure good thermal conductivity and prevent liquids such as tar produced during the carbonization process from dripping into the insulation material 13.

[0040] Preferably, Figure 1 to Figure 4 As shown, the stainless steel rack 16 is used to hold the pressed bamboo rods and to quickly lift out the carbonized products. The stainless steel rack 16 includes an outer frame, a plurality of spacer bars are fixedly connected to the bottom of the outer frame, a plurality of reinforcing ribs 21 are welded to the outside of the outer frame, rack feet 20 are fixedly connected to the corners of the bottom of the outer frame, a plurality of lifting holes 19 are opened on the top of the outer frame, and steel ropes are passed through the lifting holes 19.

[0041] The material rack 16 is welded with stainless steel bars with a diameter of about 14 mm. The bottom of the material rack is 50 mm apart from each other. The two sides of the vertical surface have reinforcing ribs 21 for holding bamboo machine bars. The material rack has a 1 cm gap around the furnace liner. The bottom of the material rack is paved with a grid net to increase the density of stainless steel bars at the bottom of the material rack and provide more support surfaces for the machine bars. The gap between the material rack and the stainless steel liner 15 is 2 cm. The stainless steel liner 15 is square. The material rack is provided with 2 layers of brackets. The bottom of the material rack is provided with 3 cm feet. The gap between the material rack and the stainless steel liner 15 is 2 cm.

[0042] Preferably, Figure 1 to Figure 4 As shown, there is a gap between the stainless steel rack 16 and the stainless steel inner container 15.

[0043] There is a 1-4 cm gap around the stainless steel rack 16 and the stainless steel inner tank 15 to accommodate thermal deformation and ensure smooth lifting, feeding and unloading.

[0044] Preferably, Figure 1 to Figure 4 As shown, the furnace cover 1 is sealed with the stainless steel inner liner 15, and the furnace cover 1 is provided with an air outlet 12 connected to the cavity of the furnace 17. The furnace cover 1 is provided with a smoke exhaust pipe 4 connected to the air outlet 12. The smoke exhaust pipe 4 is used to discharge the smoke generated by carbonization. The smoke exhaust pipe 4 is provided with an insulation sleeve 2, and the smoke exhaust pipe 4 is provided with a ball valve 3.

[0045] Preferably, Figure 1 to Figure 6As shown, an intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal also includes a flue gas purification system, which includes a water washing tank 10, a sewage outlet 11 and an exhaust pipe 5. The water washing tank 10 is arranged on one side of the furnace body 8, one end of the exhaust pipe 4 is placed in the water washing tank 10, a sewage outlet is arranged at the bottom of the water washing tank 10, and an exhaust pipe 5 is connected to one side of the water washing tank 10. The outlet end of the exhaust pipe 4 has a 45° cut angle, and the end of the cut angle extends 2-3 cm into the water surface. The heating rate of the carbonization process is 0.5-5°C / min, the maximum carbonization temperature is 700-900°C, and the carbonization process time is 8-12h.

[0046] The furnace cover 1 is provided with an air outlet 12 connected to the cavity in the furnace, which is used to discharge the flue gas during the carbonization process. The flue gas is passed into the water washing tank 10, and the tar and bamboo vinegar liquid are collected in the water. The flue gas after preliminary purification is discharged into the combustion furnace for incineration. The outlet end of the exhaust pipe 4 has a 45° cut angle, and the end of the cut angle extends 2-3 cm into the water surface, so that the liquid generated during the carbonization process is quickly cooled and drips into the water. The purified flue gas is discharged from another outlet on the top of the water washing tank 10, and the temperature is slowly increased. The bamboo machine rod is not easy to deform and crack, and the carbonization process is controllable; the setting of the maximum carbonization temperature is to obtain high-temperature bamboo charcoal. If the temperature is too low, the obtained bamboo charcoal is loose, low in density, not resistant to burning, and the product market price is low.

[0047] Preferably, a carbonization process of a smart dry distillation carbonization furnace for preparing shaped bamboo charcoal comprises the following steps:

[0048] S1, drying bamboo chips, heating and pressing them into square rods with a cross-section of 5 cm and a hollow of 1 cm, and then cutting them into machine-made rods with a length of 45-50 cm;

[0049] S2, placing the machine rod on the stainless steel material rack 16, putting it into the stainless steel inner tank 15 through a hoisting machine, and then covering the furnace cover 1, so that the furnace cover 1 and the furnace chamber 17 are tightly sealed;

[0050] S3, the heating element is controlled by the temperature sensor 14 and the electrical control box 6, the furnace chamber 17 and the internal bamboo machine rods are heated and carbonized, and the carbonization process includes four stages: drying, pre-carbonization, full carbonization and refining;

[0051] S3, drying temperature is room temperature to 160 ℃, drying time is 8h; pre-carbonization temperature is 160-250 ℃, time is 3h; comprehensive carbonization temperature is 250-450 ℃, carbonization time is 5h; refining temperature is 600-800 ℃, refining time is 1h;

[0052] S4. After the carbonization is completed, the bamboo rods are cooled, the furnace cover 1 is opened, the stainless steel rack 16 is hoisted out as a whole, and the carbon products are collected.

[0053] The method of using the intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal of the present invention is as follows:

[0054] First, the waste bamboo scraps are dried and heated, and extruded into square rods with a cross-section of 5 cm and a 1 cm hollow hole in the center, and then cut into bamboo rods with a length not exceeding 50 cm. The bamboo rods are placed on a stainless steel material rack 16, and are placed in a stainless steel inner tank 15 by a hoisting machine, and then covered with a furnace cover 1, so that the furnace cover 1 and the furnace body 8 are tightly sealed.

[0055] The heating element is controlled by the temperature sensor 14 and the electrical control box 6 to heat the furnace chamber 17 and the bamboo rod inside to perform carbonization. The carbonization process is divided into four stages: (1) Drying stage: The moisture in the bamboo rod is removed by slowly heating the stainless steel inner tank 15; (2) Pre-carbonization stage: The machine rod continues to heat up, and the hemicellulose in the bamboo material decomposes to produce carbon dioxide, carbon monoxide, a small amount of bamboo vinegar, etc.; (3) Comprehensive carbonization stage: The cellulose, lignin and other components in the bamboo material decompose rapidly to produce a large amount of combustible gas, bamboo tar and bamboo vinegar, etc.; (4) Refining stage: Continue to increase the temperature to 600-1000°C, further discharge volatiles, and shrink the bamboo charcoal to obtain high-density shaped dry distillation bamboo charcoal. After the carbonization is completed, the charcoal rod is cooled by circulating air cooling of the equipment, and the furnace cover 1 is opened to lift the material rack as a whole to collect the dry distillation bamboo charcoal product.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal, characterized in that: include: A furnace body (8) is used for carbonizing bamboo rods, the furnace body (8) comprising a furnace cover (1), a furnace chamber (17) and a stainless steel inner container (15) located in the furnace chamber (17), the furnace cover (1) being sealedly connected to the furnace chamber (17); A heating element is arranged on the furnace body (8), and the heating element is arranged in close contact with the surroundings of the furnace (17) to heat the furnace (17); A temperature sensor (14) is disposed in the furnace (17) and is used to monitor the temperature in the furnace (17) in real time. An electrical control box (6), electrically connected to the temperature sensor (14), and used to receive information sent by the temperature sensor and control the heating element; The stainless steel material rack (16) is hoisted in the furnace (17) and is used to hold the bamboo rod making raw materials that need to be carbonized.

2. The intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal as claimed in claim 1, characterized in that: The furnace cover (1) has a stepped structure, the middle of the furnace cover (1) is convex and matches the size of the furnace cavity (17).

3. The intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal as claimed in claim 1, characterized in that: The heating element is an alloy resistance wire for heating, and the heating rate and temperature are controlled by outputting current or voltage through the electrical control box (6).

4. The intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal according to claim 1, characterized in that: The furnace (17) is made of refractory aluminum silicate ceramic fiber material, and a heat-conducting filler (18) is filled between the furnace (17) and the stainless steel inner container (15).

5. The intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal as claimed in claim 1, characterized in that: The stainless steel material rack (16) is used to hold pressed bamboo rods and to quickly lift out carbonized products. The stainless steel material rack (16) comprises an outer frame, a plurality of spacer bars are fixedly connected to the bottom of the outer frame, a plurality of reinforcing ribs (21) are welded to the outside of the outer frame, material rack feet (20) are fixedly connected to the corners of the bottom of the outer frame, a plurality of lifting holes (19) are opened on the top of the outer frame, and steel ropes are passed through the lifting holes (19).

6. The intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal as claimed in claim 1, characterized in that: There is a gap between the stainless steel material rack (16) and the stainless steel inner container (15).

7. The intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal as claimed in claim 1, characterized in that: The furnace cover (1) is sealed with the stainless steel inner tank (15); the furnace cover (1) is provided with an air outlet (12) connected to the furnace chamber (17) cavity; the furnace cover (1) is provided with a smoke exhaust pipe (4) connected to the air outlet (12); the smoke exhaust pipe (4) is used to discharge smoke generated by carbonization; the smoke exhaust pipe (4) is provided with an insulation sleeve (2); and the smoke exhaust pipe (4) is provided with a ball valve (3).

8. The intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal as claimed in claim 7, characterized in that: It also includes a flue gas purification system, which includes a water washing tank (10), a sewage outlet (11) and an exhaust pipe (5). The water washing tank (10) is arranged on one side of the furnace body (8), one end of the exhaust pipe (4) is placed in the water washing tank (10), the sewage outlet (11) is arranged at the bottom of the water washing tank (10), one side of the water washing tank (10) is connected to the exhaust pipe (5), and the outlet end of the exhaust pipe (4) has a 45° cut angle, and the end of the cut angle extends 2-3 cm into the water surface.

9. A carbonization process of an intelligent dry distillation carbonization furnace for preparing shaped bamboo charcoal according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, drying bamboo chips, heating and pressing them into machine-made sticks; S2, placing the machine-made rods on the stainless steel material rack (16), placing them into the stainless steel inner tank (15) as a whole by means of a lifting machine, and then covering the furnace cover (1) so that the furnace cover (1) and the furnace chamber (17) are tightly fastened and sealed; S3, controlling the heating element through the temperature sensor (14) and the electrical control box (6), heating the furnace chamber (17) and the internal machine rods for carbonization, wherein the carbonization process includes four stages: drying, pre-carbonization, full carbonization and refining; S3, drying temperature is room temperature to 160 ℃, drying time is 8h; pre-carbonization temperature is 160-250 ℃, time is 3h; comprehensive carbonization temperature is 250-450 ℃, carbonization time is 5h; refining temperature is 600-800 ℃, refining time is 1h; S4. After the carbonization is completed and the carbon rods are cooled, the furnace cover (1) is opened, the stainless steel material rack (16) is lifted out as a whole, and the carbon products are collected.

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