Temperature-controlled bamboo carbonization equipment and carbonization method thereof

Abstract

This invention provides a temperature-controlled bamboo carbonization device and method, relating to the technical field of bamboo carbonization equipment. The invention includes a carbonization chamber with a cover rotatably mounted at its port. The cover seals the carbonization chamber using a locking unit. A heating hood is located at the bottom of the carbonization chamber, housing a heat source to heat the chamber. The bamboo to be processed is placed inside the carbonization chamber. The cover, covering the port of the carbonization chamber, forms a closed space to reduce the oxygen content inside during heating, ensuring the bamboo can be carbonized. A heating unit is installed on the carbonization chamber, allowing heat from the heat source to pass through the chamber from the bottom. This invention utilizes a vertically penetrating copper pipe in conjunction with a negative pressure hot air circulation structure to create a bottom-up, full-area circulating heat flow path. High-temperature hot air flows directly from the heat source area at the bottom of the chamber to the top through the copper pipe, achieving a uniform temperature distribution within the chamber.

Description

Technical Field

[0001] This invention relates to the field of bamboo carbonization equipment technology, and in particular to a temperature-controlled bamboo carbonization equipment and its carbonization method. Background Technology

[0002] Bamboo, as a fast-growing and renewable green biomass material, is widely used in furniture manufacturing, interior decoration, building materials, and handicrafts due to its excellent mechanical properties, natural texture, and environmental friendliness. High-temperature carbonization is a core pre-processing step in the deep processing of bamboo. By subjecting bamboo to high-temperature pyrolysis modification in a closed, low-oxygen environment, the hydrophilic groups and nutrients within the bamboo can be effectively destroyed, significantly improving its dimensional stability, anti-corrosion and anti-insect properties, and weather resistance. Simultaneously, it optimizes the appearance, color, and surface texture of the bamboo, making it a crucial step in determining the final quality and performance of the deep-processed bamboo products.

[0003] Currently, the bamboo carbonization equipment commonly used in the industry is mainly based on a horizontal, sealed carbonization chamber. A combustion heat source is set at the bottom of the carbonization chamber to directly heat the chamber body. Heat is transferred by natural convection of the air inside the chamber, thereby completing the carbonization process of the bamboo inside the chamber.

[0004] The existing heating method easily creates stratification of hot airflow within the chamber, making it impossible to achieve uniform temperature distribution. Because the heat source is concentrated at the bottom of the carbonization chamber, a significant vertical temperature gradient is formed during the natural upward flow of hot air. The large temperature difference between the bottom and top of the carbonization chamber results in severely uneven heating of bamboo stacked in different positions within the chamber. This easily leads to quality defects such as over-carbonization of bamboo at the bottom and under-carbonization of bamboo at the top, resulting in extremely poor consistency of the carbonized products and making it difficult to guarantee a high yield rate. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a temperature-controlled bamboo carbonization device and its carbonization method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a temperature-controlled bamboo carbonization device, comprising a carbonization chamber, a cover rotatably mounted on the port of the carbonization chamber, the cover sealing the carbonization chamber by means of a locking unit, a heating cover provided at the bottom of the carbonization chamber, the heating cover having a built-in heat source for heating the carbonization chamber, bamboo to be processed placed inside the carbonization chamber, wherein the cover covering the port of the carbonization chamber forms a closed space to reduce the internal oxygen content when heating the carbonization chamber to ensure that the bamboo can be carbonized, and a heating unit provided on the carbonization chamber, wherein the heating unit can pass heat from the heat source through the bottom of the carbonization chamber.

[0007] Preferably, the bottom of the carbonization chamber is equipped with a support leg, and the heating cover is disposed inside the support leg. The heat source inside the heating cover can be natural gas combustion to heat the carbonization chamber.

[0008] Preferably, the heating unit includes a copper tube, and the carbonization chamber has a vertically extending circular hole from top to bottom. The copper tube can slide through the circular hole and be slidably assembled with the carbonization chamber. When the copper tube passes through the carbonization chamber, the connection between the two is press-fitted. The copper tube can conduct the heat source air below the carbonization chamber to the top of the carbonization chamber. When the heat air passes through the copper tube, it can directly heat the inside of the carbonization chamber to ensure that the bamboo inside the carbonization chamber is heated evenly.

[0009] Preferably, a wind turbine compartment is installed at the upper end of the carbonization chamber, and a fan blade is rotatably installed inside the wind turbine compartment. The wind turbine compartment and the upper end of the copper pipe are connected by a metal corrugated pipe. The fan blade can be installed at the central axis of the fan blade by means of an extension shaft. An external motor drives the extension shaft to rotate the fan blade. The negative pressure generated by the rotation of the fan blade inside the wind turbine compartment draws the hot air generated by the heat source inside the heating cover from below the carbonization chamber to heat the bamboo inside the carbonization chamber.

[0010] Preferably, a fixed base is installed at the upper end of the carbonization chamber, and a sliding rod is slidably assembled inside the fixed base. One end of the sliding rod is fixedly connected to a stop block, and a No. 1 spring is sleeved on the surface of the sliding rod. The two ends of the No. 1 spring are fixed to the fixed base and the stop block, respectively. The elastic force of the No. 1 spring can be used to push the stop block to slide on the fixed base with the help of the sliding rod until it hits the surface of the copper tube to restrict and fix the position of the copper tube.

[0011] Preferably, the surface of the hatch cover is equipped with an observation window, through which the carbonization progress of the bamboo inside the carbonization chamber can be observed. A conveying unit is provided on one side of the carbonization chamber, which can be used to transport the bamboo to be processed into the carbonization chamber.

[0012] Preferably, the conveying unit includes two tracks, each with an L-shaped vertical cross-section. A mounting base is fixedly installed at the bottom of each track, and a mounting plate is positioned between the two tracks. Rollers are rotatably mounted on the bottom of the mounting plate, allowing it to slide between the two tracks. A pad is fixedly connected to the upper end of the mounting plate, on which bamboo to be processed can be stacked. A blocking ring is fixedly connected to the surface of each roller, with the roller pressing against the L-shaped track and the blocking ring blocking one side of the track. The blocking rings on the two opposing rollers restrict the sliding path of the mounting plate by blocking the sides of the track.

[0013] Preferably, the locking unit includes a fixing frame, which is fixed to the side of the hatch cover. A clamping bracket is fixedly connected to the side of the carbonization chamber. A rotating wheel is rotatably installed inside the fixing frame. A lead screw is fixedly connected to the surface of the rotating wheel. When the hatch cover is placed over the carbonization chamber port, the lead screw can be locked inside the clamping bracket. A tightening block is threaded onto the surface of the lead screw. The tightening block can be used to thread the lead screw onto the surface of the lead screw to seal and fix the hatch cover over the carbonization chamber port.

[0014] Preferably, the surface of the lead screw is fitted with a second spring, a first pad, and a second pad. The first and second pads are located on both sides of the second spring. The spring force can be used to open the first and second pads to fix the lead screw on the bracket and ensure that the hatch cover is sealed at the carbonization chamber port.

[0015] Preferably, a temperature-controlled bamboo carbonization method, using any one of the temperature-controlled bamboo carbonization devices described above, includes the following steps: S1. After cutting and arranging the bamboo to be carbonized, stack it evenly on the pad of the conveyor unit to complete the feeding preparation. S2. By using the rollers to slide on the track, the mounting plate carrying the bamboo is pushed into the carbonization chamber along the track, so that the bamboo is completely placed in the heating zone of the carbonization chamber. S3. Rotate the cover to fit the port of the carbonization chamber, rotate the wheel of the locking unit to drive the screw into the bracket, install the first pad, spring and second pad in sequence, and tighten the tightening block on the screw to seal and lock the cover and carbonization chamber, forming a closed and low-oxygen carbonization space. S4. Activate the heat source inside the heating hood to heat the bottom of the carbonization chamber. The heat is conducted to the chamber through the copper pipe that runs through the carbonization chamber. The bamboo inside the chamber is preheated and dried at a preset heating rate to remove the free water and bound water inside the bamboo. S5. Start the external motor to drive the fan blades in the wind turbine compartment to rotate. The negative pressure hot air circulation is formed through the metal corrugated pipe and copper pipe. The hot air generated by the heating cover is drawn upward from the bottom of the carbonization chamber and circulated, so that the temperature inside the chamber is evenly distributed. The carbonization temperature is precisely controlled within the process setting range, and the preset carbonization time is maintained at a constant temperature to complete the uniform carbonization of bamboo. S6. Observe the carbonization status of the bamboo in the cabin in real time through the observation window on the hatch cover. After confirming that the carbonization effect of the bamboo meets the standard by combining the preset carbonization process parameters, turn off the heat source of the heating cover. S7. Keep the hatch tightly closed, stop the hot air circulation, and allow the carbonization chamber and the carbonized bamboo inside to cool down naturally to a safe temperature to avoid contact with air at high temperatures, which could cause the bamboo to oxidize and burn. S8. Loosen the tightening block of the locking unit, turn the screw out of the bracket, open the cover, and pull the mounting plate carrying the carbonized bamboo out of the carbonization chamber along the track to complete the unloading and the entire carbonization process.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, a bottom-up, full-area circulating heat flow path is constructed by using copper pipes vertically penetrating the carbonization chamber in conjunction with a negative pressure hot air circulation structure. High-temperature hot air flows directly from the heat source area at the bottom of the chamber to the top via the copper pipes. Simultaneously, heat exchange occurs throughout the carbonization chamber via the copper pipe walls, overcoming the inherent drawbacks of traditional carbonization equipment, such as stratified hot airflow and large temperature differences between the top and bottom. This achieves uniform temperature distribution within the chamber, preventing quality defects such as localized over- or under-carbonization of the bamboo. Furthermore, the heating rate and constant temperature range within the carbonization chamber can be precisely controlled by adjusting the heat source power and fan blade speed.

[0017] 2. In this invention, the spring-preloaded copper tube limiting component can form a stable radial limit on the copper tube that penetrates the carbonization chamber. At the same time, it can adapt to the thermal expansion and contraction deformation of the copper tube under high temperature conditions, avoiding the problems of displacement of the copper tube and failure of assembly hole sealing due to thermal deformation.

[0018] 3. In this invention, the hot airflow generated by the heat source is completely guided into the circulation path through the negative pressure circulation structure, realizing the full utilization of heat energy. This avoids the problem of heat concentration at the bottom of the chamber and the ineffective loss of a large amount of heat energy in traditional carbonization equipment. Under the same carbonization process requirements, the heating time can be significantly shortened and the consumption of energy such as natural gas can be reduced. Attached Figure Description

[0019] Figure 1 A three-dimensional structural schematic diagram of a temperature-controlled bamboo carbonization device and its carbonization method is provided for this invention. Figure 2 This invention provides a schematic diagram of the structure of a temperature-controlled bamboo carbonization device and its carbonization method in the open state of the hatch. Figure 3 This invention provides a partial schematic diagram of a temperature-controlled bamboo carbonization device and its carbonization method. Figure 4 This invention provides a schematic diagram of the conveying unit in a temperature-controlled bamboo carbonization device and carbonization method. Figure 5 This invention proposes a temperature-controlled bamboo carbonization device and its carbonization method. Figure 3 Enlarged view of point A; Figure 6 This invention proposes a temperature-controlled bamboo carbonization device and its carbonization method. Figure 1 Enlarged view of point B.

[0020] Legend: 1. Carbonization chamber; 2. Support leg; 3. Heating cover; 4. Mounting base; 5. Track; 6. Conveying unit; 61. Mounting plate; 62. Pad frame; 63. Roller; 64. Blocking ring; 7. Hatch cover; 8. Observation window; 9. Heating unit; 91. Metal bellows; 92. Fan blade; 93. Copper pipe; 94. Fixing seat; 95. Spring No. 1; 96. Slide rod; 97. Abutment block; 10. Locking unit; 101. Fixing frame; 102. Rotary wheel; 103. Lead screw; 104. Card holder; 105. Pad No. 1; 106. Spring No. 2; 107. Pad No. 2; 108. Tightening block. Detailed Implementation

[0021] like Figure 1-6As shown, this invention provides a temperature-controlled bamboo carbonization device and method, including a horizontally arranged carbonization chamber 1, a chamber cover 7, a locking unit 10, a heating assembly, and a temperature-controlled circulating heating unit 9. The carbonization chamber 1 is a horizontal cylindrical chamber structure with closed ends and an axial opening only at the front end. One side of the chamber cover 7 is hinged to the edge of the front opening of the carbonization chamber 1 via a hinge seat and a hinge shaft. The chamber cover 7 can reciprocate around the horizontal axis of the hinge shaft to achieve the closing and sealing or opening operation of the front opening of the carbonization chamber 1. The locking unit 10 is located at the corresponding position of the carbonization chamber 1 and the chamber cover 7 away from the hinge side, and is used to lock and fix the chamber cover 7 to the carbonization chamber 1 when the chamber cover 7 is closed on the front opening of the carbonization chamber 1, so that the interior of the carbonization chamber 1 forms a sealed, low-oxygen carbonization environment. The carbonization chamber 1 has multiple vertically extending support legs 2 evenly fixed axially at its bottom. The lower ends of all support legs 2 are fixed to the mounting base to provide stable support for the carbonization chamber 1. A heating hood 3 is installed below the bottom wall of the carbonization chamber 1. The heating hood 3 is fixedly installed in the internal space enclosed by all the support legs 2. A heat exchange gap for the flow of heating air is reserved between the top wall of the heating hood 3 and the bottom wall of the carbonization chamber 1. The heating hood 3 encloses a heating cavity with an open top. The heating assembly is installed inside the heating cavity. The heating assembly uses a natural gas burner, with the flame jet end of the natural gas burner facing upwards towards the bottom wall of the carbonization chamber 1. The high temperature heat generated by combustion can directly heat the bottom wall of the carbonization chamber 1. The temperature-controlled circulating heating unit 9 includes multiple vertical... The carbonization chamber 1 has multiple sets of vertically penetrating mounting holes on its top and bottom walls, corresponding to the parallel copper tubes 93. Each copper tube 93 passes through a set of mounting holes. The outer wall of the copper tube 93 is fixed and sealed to the wall of the mounting hole using an interference fit to prevent gas leakage in the carbonization chamber. The lower end of each copper tube 93 extends downward into the heating chamber of the heating cover 3, and the upper end extends upward to the top wall of the carbonization chamber 1. The copper tubes 93 can vertically guide the high-temperature hot airflow in the heating chamber from the bottom to the top of the carbonization chamber 1, while simultaneously exchanging heat with the air in the carbonization chamber through their metal tube walls, achieving uniform heating and temperature control of the bamboo material in the carbonization chamber. The circulating heating unit 9 also includes a wind turbine nacelle, a drive assembly, and multiple metal bellows pipes 91. The wind turbine nacelle is fixedly installed above the top wall of the carbonization chamber 1. Inside the wind turbine nacelle, fan blades 92 are rotatably mounted via bearings. The drive assembly uses an external drive motor, and the output shaft of the drive motor is connected to the central rotating shaft of the fan blades 92 via an extension shaft, which can drive the fan blades 92 to rotate around the vertical axis. One end of each metal bellows pipe 91 is connected to the upper end of a copper pipe 93, and the other end of all metal bellows pipes 91 is connected to the air inlet of the wind turbine nacelle. When the fan blades 92 rotate, a negative pressure environment can be formed inside the wind turbine nacelle, and the high-temperature hot airflow in the heating chamber is continuously drawn upward into the wind turbine nacelle through the metal bellows pipes 91 and the copper pipes 93.A bottom-up circulating heat flow path is formed. Multiple sets of copper tube limiting assemblies, each corresponding to a copper tube 93, are fixed to the top wall of the carbonization chamber 1. Each copper tube limiting assembly includes a fixing seat 94, a sliding rod 96, a stop block 97, and a spring 95. The fixing seat 94 is bolted to the top wall of the carbonization chamber 1. The sliding rod 96 slides horizontally through a guide hole in the fixing seat 94. One end of the sliding rod 96 facing the corresponding copper tube 93 is fixedly connected to the stop block 97. The spring 95 is sleeved on the outside of the sliding rod 96, with both ends abutting against the opposite sidewalls of the fixing seat 94 and the stop block 97. The spring 95 can drive the sliding rod 96, causing the stop block 97 to slide towards the copper tube 93, thus tightly pressing the end face of the stop block 97. On the outer wall of the copper tube 93, a horizontal limiting and fixing mechanism is formed for the copper tube 93. A through observation window is opened at the center of the cover 7. The inside of the observation window is sealed with a high-temperature resistant tempered glass observation window 8 by a high-temperature resistant sealing ring. The operator can observe the carbonization progress of the bamboo in the carbonization chamber in real time through the observation window 8. A conveying unit 6 is set at the front of the opening of the carbonization chamber 1. The conveying unit 6 can smoothly convey the bamboo to be carbonized into the carbonization chamber along the axial direction of the carbonization chamber 1, and can also smoothly output the carbonized bamboo from the carbonization chamber along the axial direction. The conveying unit 6 includes two sets of parallel tracks 5, multiple mounting seats 4, mounting plates 61, multiple sets of roller assemblies and pads 62. Both sets of tracks 5 are L-shaped cross sections. The steel rails consist of two sets of rails 5, both extending axially along the carbonization chamber 1 and symmetrically arranged on the left and right sides of the front opening of the carbonization chamber 1. The bottom of each set of rails 5 is fixed to the mounting base surface by multiple spaced mounting seats 4. The mounting plate 61 is horizontally positioned between the two sets of rails 5. Multiple sets of roller assemblies are symmetrically rotated and mounted on the left and right sides of the bottom of the mounting plate 61. Each set of roller assemblies includes a roller 63 and a retaining ring 64 coaxially fixed to the outside of the roller 63. The wheel surface of the roller 63 presses against the horizontal bearing surface of the rail 5, and the inner sidewall of the retaining ring 64 is attached to the outer side of the vertical limiting surface of the rail 5, which can restrict the displacement of the mounting plate 61 in the left and right directions, so that the mounting plate 61 can only slide back and forth along the axial direction of the rail 5. The pad frame 62 is fixed to the upper surface of the mounting plate 61 by welding. The pad frame 62 adopts a multi-layer grid structure design, which can evenly stack the bamboo to be carbonized on the upper surface of the pad frame 62, so that the outer surface of the bamboo can fully contact the hot airflow in the carbonization chamber. The locking unit 10 includes a fixing frame 101, a rotating wheel 102, a lead screw 103, a clamping bracket 104, and a tightening block 108. The fixing frame 101 is fixedly welded to the outer wall of the hatch cover 7 away from the hinge side. The clamping bracket 104 is fixedly welded to the outer wall at the corresponding position of the front opening of the carbonization chamber 1. The clamping bracket 104 has a U-shaped groove facing outward. The rotating wheel 102 is rotatably installed inside the fixing frame 101 through a horizontal pin shaft. One end of the lead screw 103 is fixedly welded to the outer peripheral surface of the rotating wheel 102.The lead screw 103 can reciprocate around the horizontal pin shaft with the rotating wheel 102, allowing the rod body of the lead screw 103 to smoothly engage or disengage from the U-shaped groove of the clamp 104. The tightening block 108 is a locking nut with an operating handle. The tightening block 108 is assembled on the outer surface of the lead screw 103 through an internal thread structure. When the lead screw 103 is engaged in the U-shaped groove, the tightening block 108 can be rotated to move it axially along the lead screw 103, pressing the clamp 104 between the fixing frame 101 and the tightening block 108, thereby achieving a locking and sealing between the hatch cover 7 and the carbonization chamber 1. The 03 assembly also includes a first pad 105, a spring 106, and a second pad 107. These pads are sequentially positioned between the tightening block 108 and the clamp 104. When the tightening block 108 is tightened, the spring 106 is axially compressed, and its elastic restoring force applies a reverse preload to the first pad 105 and the second pad 107, eliminating the threaded fit clearance between the tightening block 108 and the lead screw 103, and preventing the tightening block 108 from loosening under heat and vibration conditions.

[0022] The working principle is divided into five core stages: feeding into the chamber, sealing and locking, heating and carbonization, circulating temperature control, and cooling and discharging. It fully covers the entire process of bamboo carbonization. Before the bamboo carbonization operation, the bamboo to be carbonized is first cut and pre-treated. Then, the pre-treated bamboo is evenly stacked on the upper surface of the pad 62. The mounting plate 61 is pushed to slide along the axial direction of the track 5 via the rollers 63, and the mounting plate 61 carrying the bamboo is smoothly pushed into the carbonization chamber of the carbonization chamber 1, completing the bamboo feeding operation. After the bamboo is fed into the chamber, the chamber cover 7 is rotated to completely cover it. At the front opening of the carbonization chamber 1, rotating the wheel 102 drives the lead screw 103 to engage in the U-shaped slot of the bracket 104. After sequentially installing the first pad 105, spring 106, and second pad 107, rotating the tightening block 108 causes it to move axially along the lead screw 103. The preload of the spring 106 achieves a gapless seal between the chamber cover 7 and the carbonization chamber 1, creating a sealed, low-oxygen environment in the carbonization chamber. This prevents oxidation and combustion of the bamboo during the high-temperature carbonization process. The natural gas burner inside the heating hood 3 is then activated, and the high-temperature heat generated directly heats the carbonization chamber 1. The bottom wall is heated, and simultaneously, an external drive motor is activated to rotate the fan blades 92. As the fan blades 92 rotate, a negative pressure is created within the impeller compartment. This negative pressure draws the high-temperature hot airflow from below the carbonization chamber 1 upwards through the metal bellows 91 and copper pipe 93, forming a bottom-up circulating heat flow path throughout the carbonization chamber 1. The high-temperature hot airflow undergoes thorough heat exchange with the air inside the carbonization chamber through the wall of the copper pipe 93, causing the temperature inside the carbonization chamber to rise rapidly and evenly. Furthermore, the carbonization temperature inside the carbonization chamber can be precisely controlled by adjusting the burner power and the fan blade speed 92. The temperature and heating rate are controlled to achieve uniform carbonization of bamboo. During the carbonization process, the operator can observe the carbonization status of the bamboo in the carbonization chamber in real time through the observation window 8 on the cover 7. After confirming that the carbonization of the bamboo has reached the standard based on the preset carbonization process time, the natural gas burner is turned off to stop heating. The carbonization chamber is kept sealed to allow the bamboo to cool down naturally to a safe temperature. After cooling is completed, the tightening block 108 is loosened, the screw 103 is turned out of the U-shaped slot of the bracket 104, the cover 7 is opened, and the mounting plate 61 is pulled out from the carbonization chamber 1 along the track 5 to complete the unloading operation of the carbonized bamboo.

[0023] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any other way. Any person skilled in the art may utilize the disclosed technical content to make changes or modifications to create equivalent embodiments applicable to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, still fall within the protection scope of the present invention. In the description of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood through specific circumstances.

Claims

1. A temperature-controlled bamboo carbonization device, characterized in that: The device includes a carbonization chamber (1), with a cover (7) rotatably mounted on the port of the carbonization chamber (1). The cover (7) seals the carbonization chamber (1) by means of a locking unit (10). A heating cover (3) is provided at the bottom of the carbonization chamber (1). The heating cover (3) has a built-in heat source that can heat the carbonization chamber (1). The bamboo to be processed is placed inside the carbonization chamber (1). The cover (7) covers the port of the carbonization chamber (1) to form a closed space to reduce the oxygen content inside the carbonization chamber (1) when it is heated, so that the bamboo can be carbonized. A heating unit (9) is provided on the carbonization chamber (1). The heating unit (9) can pass the heat source heat through the carbonization chamber (1) from the bottom.

2. The temperature-controlled bamboo carbonization equipment according to claim 1, characterized in that: The bottom of the carbonization chamber (1) is equipped with a support leg (2), and the heating cover (3) is located inside the support leg (2). The heat source inside the heating cover (3) can be natural gas combustion to heat the carbonization chamber (1).

3. The temperature-controlled bamboo carbonization equipment according to claim 1 or 2, characterized in that: The heating unit (9) includes a copper tube (93). The carbonization chamber (1) has a circular hole that runs vertically through it from top to bottom. The copper tube (93) can slide through the circular hole and be slidably assembled with the carbonization chamber (1). When the copper tube (93) passes through the carbonization chamber (1), the connection between the two is press-fit sealed. The copper tube (93) can guide the heat source gas below the carbonization chamber (1) to the top of the carbonization chamber (1). When the hot gas passes through the copper tube (93), it can directly heat the inside of the carbonization chamber (1) to ensure that the bamboo inside the carbonization chamber (1) is heated evenly.

4. The temperature-controlled bamboo carbonization equipment according to claim 3, characterized in that: The upper end of the carbonization chamber (1) is equipped with a wind turbine chamber, and a fan blade (92) is rotatably installed inside the wind turbine chamber. The wind turbine chamber and the upper end of the copper pipe (93) are connected by a metal corrugated pipe (91). The fan blade (92) can be installed at the central axis of the fan blade (92) by means of an extension shaft. The extension shaft is driven by an external motor to make the fan blade (92) rotate. The negative pressure generated by the rotation of the fan blade (92) inside the wind turbine chamber will draw the hot air generated by the heat source inside the heating cover (3) from below the carbonization chamber (1) to heat the bamboo inside the carbonization chamber (1).

5. The temperature-controlled bamboo carbonization equipment according to claim 4, characterized in that: A fixed seat (94) is installed at the upper end of the carbonization chamber (1). A slide rod (96) is slidably assembled inside the fixed seat (94). A stop block (97) is fixedly connected to one end of the slide rod (96). A first spring (95) is sleeved on the surface of the slide rod (96). The two ends of the first spring (95) are fixed between the fixed seat (94) and the stop block (97) respectively. The elastic force of the first spring (95) can be used to push the stop block (97) to slide on the fixed seat (94) with the help of the slide rod (96) until it hits the surface of the copper tube (93) to fix the position of the copper tube (93).

6. The temperature-controlled bamboo carbonization equipment according to claim 1, characterized in that: The surface of the hatch cover (7) is equipped with an observation window (8), through which the carbonization progress of bamboo inside the carbonization chamber (1) can be observed. A conveying unit (6) is provided on one side of the carbonization chamber (1), and the bamboo to be processed can be conveyed into the carbonization chamber (1) using the conveying unit (6).

7. The temperature-controlled bamboo carbonization equipment according to claim 6, characterized in that: The conveying unit (6) includes two tracks (5). The vertical cross section of the tracks (5) is L-shaped. The bottom of the tracks (5) is fixedly installed with a mounting base (4). A mounting plate (61) is provided between the two tracks (5). A roller (63) is rotatably installed on the bottom of the mounting plate (61). The mounting plate (61) can slide between the two tracks (5) with the help of the roller (63). A pad (62) is fixedly connected to the upper end of the mounting plate (61). The bamboo to be processed can be stacked on the pad (62). A blocking ring (64) is fixedly connected to the surface of the roller (63). The roller (63) presses on the L-shaped track (5). The blocking ring (64) blocks one side of the track (5). The blocking ring (64) on the two opposing rollers (63) can be used to block the side of the track (5) to restrict the sliding path of the mounting plate (61).

8. The temperature-controlled bamboo carbonization equipment according to claim 1, characterized in that: The locking unit (10) includes a fixing frame (101), which is fixed to the side of the cover (7). A card holder (104) is fixedly connected to the side of the carbonization chamber (1). A rotating wheel (102) is rotatably installed inside the fixing frame (101). A lead screw (103) is fixedly connected to the surface of the rotating wheel (102). When the cover (7) is placed over the port of the carbonization chamber (1), the lead screw (103) can be locked inside the card holder (104). A tightening block (108) is threaded on the surface of the lead screw (103). The tightening block (108) can be used to thread the cover (7) over the port of the carbonization chamber (1) to seal and fix it.

9. The temperature-controlled bamboo carbonization equipment according to claim 8, characterized in that: The surface of the lead screw (103) is fitted with a second spring (106), a first pad (105), and a second pad (107). The first pad (105) and the second pad (107) are located on both sides of the second spring (106). The elastic force of the second spring (106) can be used to open the first pad (105) and the second pad (107) to fix the lead screw (103) on the bracket (104) to ensure that the hatch cover (7) is sealed at the port of the carbonization chamber (1).

10. A temperature-controlled bamboo carbonization method, characterized in that, The temperature-controlled bamboo carbonization equipment according to any one of claims 1-9 includes the following steps: S1. After cutting and arranging the bamboo to be carbonized, it is evenly stacked on the pad (62) of the conveying unit (6) to complete the feeding preparation. S2. By using the roller (63) to slide on the track (5), the mounting plate (61) carrying the bamboo is pushed into the carbonization chamber (1) along the track (5), so that the bamboo is completely placed in the heating zone of the carbonization chamber (1). S3. Rotate the hatch cover (7) to fit the port of the carbonization chamber (1), rotate the wheel (102) of the locking unit (10) to drive the screw (103) into the bracket (104), and install the first pad (105), spring (106), and second pad (107) in sequence. Then tighten the tightening block (108) on the screw (103) to seal and lock the hatch cover (7) and the carbonization chamber (1) to form a closed low-oxygen carbonization space. S4. Start the heat source in the heating cover (3) to heat the bottom of the carbonization chamber (1). The heat is conducted to the chamber through the copper pipe (93) that runs through the carbonization chamber (1) and preheats and dries the bamboo in the chamber at a preset heating rate to remove the free water and bound water inside the bamboo. S5. Start the external motor to drive the fan blades (92) in the wind turbine compartment to rotate. Through the metal corrugated pipe (91) and copper pipe (93), a negative pressure hot air circulation is formed. The hot air generated by the heating cover (3) is drawn upward from the bottom of the carbonization chamber (1) to make the temperature in the chamber evenly distributed, accurately control the carbonization temperature within the process setting range, maintain the preset carbonization time at a constant temperature, and complete the uniform carbonization of bamboo. S6. Observe the carbonization status of the bamboo in the cabin in real time through the observation window (8) on the hatch cover (7). Combined with the preset carbonization process parameters, after confirming that the carbonization effect of the bamboo meets the standard, turn off the heat source of the heating cover (3). S7. Keep the hatch cover (7) locked and closed, stop the hot air circulation, and let the carbonization chamber (1) and the carbonized bamboo inside cool down naturally to a safe temperature to avoid contact with air at high temperature, which would cause the bamboo to oxidize and burn. S8. Loosen the tightening block (108) of the locking unit (10), turn the screw (103) out of the bracket (104), open the cover (7), and pull the mounting plate (61) carrying the carbonized bamboo material out of the carbonization chamber (1) along the track (5) to complete the unloading and the entire carbonization process.

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