47results about "Wood charring/burning" patented technology

The invention discloses a color consistency control method in a bamboo kitchen ware carbonization process, and belongs to the technical field of bamboo processing. The method comprises the following steps: acquiring a multi-dimensional spectral data vector of the surface of the bamboo kitchen ware; determining a multi-dimensional change rate vector of the spectral data; respectively generating a first candidate control signal and a second candidate control signal based on the spectral data and the change rate vector; determining a system dynamic state index based on the change rate vector; generating a dynamic weighting coefficient according to the dynamic state index of the system; and performing weighted fusion on the first candidate control signal and the second candidate control signal by using a dynamic weighting coefficient to generate a final heat regulation control signal. According to the invention, the method achieves the self-adaptive optimal control of all working conditions through the construction of a dual-mode decision fusion composite control system, guarantees the quick response in a dynamic stage, guarantees the smooth convergence in a steady-state stage, and fundamentally improves the thermal inertia problem of the system.

The invention provides a bamboo pole pencil board and a preparation method and application thereof, and the preparation method comprises the following steps: sequentially performing dry carbonization softening and wet flattening on raw materials, and then performing wax dipping to obtain the bamboo pole pencil board, the raw materials comprise flattening plates or splice plates. The bamboo rod pencil board is high in strength, good in size stability, free of warping, smooth in surface, good in pencil point forming, close to a poplar pencil board in coiling and cutting performance, environmentally friendly and safe in preparation process, free of harmful substances such as formaldehyde and the like, capable of meeting the safety requirement and capable of meeting the requirements of student supplies and office supplies.

A laser system comprises a femtosecond laser, and a beam delivery system configured to deliver and scan a laser beam emanating from the femtosecond laser onto wood, based on a desired graphene design, wherein graphene is formed on the wood by the laser beam. A device capable of being fabricated by the laser system may include a temperature sensor which detects a temperature by measuring resistance of the graphene, a heater or a boiler which converts electrical energy to thermal energy, or electrical interconnects.

The invention relates to a device (1) for heating a wooden barrel (6) comprising a longitudinal wall ending in two opposing circular rims delimiting a lower opening (61) and an upper opening (62), said device being characterized in that it comprises - a heating element (2) comprising a base enabling the heating element (2) to rest on the bottom of the barrel (6) at the level of the lower opening (61), the heating element (2) having in the vicinity of its base an orifice (21) equipped with a shutter (22) capable of taking several shuttering positions, - a chimney (3) extending axially from the heating element (2), the chimney (3) extending inside the wooden barrel (6), and - a lid (4) integral with the chimney (3),dimensioned and positioned on said chimney (3) so as to at least partially obstruct the upper opening (62) when the base rests on the bottom of the barrel at the level of the lower opening (61) Figure for the abbreviation: figure 2,

The invention relates to wood furniture with mothproof, scratch-resistant and flame-retardant properties and a preparation method thereof, the wood furniture comprises a furniture body, and the furniture body is formed by assembling a plurality of pieces of wood; each piece of wood is subjected to pressurization soaking treatment through an insect-proof flame retardant; the surface of the furniture body is coated with a scratch-resistant layer; the scratch-resistant layer is formed by coating the surface of the furniture body with a scratch-resistant coating; according to the wood furniture, due to the dual-structure design of'internal insect-proof flame-retardant treatment and outer scratch-resistant coating ', organic combination of insect damage prevention, scratch resistance and flame retardance is achieved, and the wood furniture has lasting and comprehensive insect-proof performance and excellent scratch-resistant and flame-retardant performance.

The invention relates to the technical field of plate processing, and provides a furniture plate processing method and device which comprises a cutting table, a placing area arranged on the cutting table and used for placing plates and a cutting assembly used for cutting the plates, and is characterized in that supporting blocks used for supporting the plates are arranged in the placing area in an array mode; each supporting block can independently ascend and descend, the supporting block perpendicularly corresponding to the cutting path is located at the lower set position and keeps a set distance from the lower side of the plate, and the other supporting blocks are located at the upper set position and keep contact with the lower side of the plate. The supporting block vertically corresponding to the cutting path descends to the lower set position, a set distance is kept between the supporting block and the lower side of the plate, so that a safe cutting space is reserved, and the other supporting blocks do not act to be located at the upper set position and keep in contact with the lower side of the plate; the supporting block cannot be damaged in the cutting process, and the service life of the plate supporting structure is greatly prolonged.

According to the environment-friendly solid wood floor adopting the deep carbonization treatment process and the production method of the environment-friendly solid wood floor, modification of a wood molecular structure is achieved through the steps of raw wood material pretreatment, high-temperature and high-pressure deep carbonization treatment, cooling stabilization treatment, surface waterproof treatment, standard floor processing and the like. According to the method, deep pyrolysis treatment is conducted in the high-temperature environment of 190-212 DEG C, the hemicellulose structure of the wood is changed from the molecular level, chemical agents do not need to be added, release of harmful substances such as formaldehyde is thoroughly eliminated, and meanwhile the size stability and corrosion resistance of the wood are remarkably improved. The perfect combination of the natural attractiveness of the traditional solid wood floor and the stability of the modern technology is realized, and an innovative solution is provided for green building materials.

A wood degreasing process, comprising the following steps: providing a degreasing promoting liquid; pretreatment: soaking wood in the degreasing promoting liquid for 0.5-3.5 hours; heat treatment: taking the wood out of the degreasing promoting liquid and placing it into a carbonization kiln; wood repairing treatment: providing a curing agent, dissolving the curing agent in a solvent to form a repairing agent solution, and then soaking the wood after the heat treatment into the repairing agent solution; and lumber drying treatment: drying the wood after the modification treatment to complete the degreasing of the wood. The degreasing process uses the degreasing promoting liquid in the early stage of degreasing and adopts a low-temperature weak alkaline solution, which can make the resin precipitate from the wood and undergo saponification reaction with the alkaline substance provided by the sodium bicarbonate, so as to achieve the purpose of removing the resin, and at the same time, the temperature of the heat treatment can be reduced and the speed of the heat treatment can be increased, so that the heat treatment can be carried out at medium temperature, thereby reducing the influence on the color and mechanical properties of the wood and improving the stability of the product.

The utility model belongs to the technical field of bamboo processing, and discloses a high-temperature carbonization device for bamboo processing. Comprising a supporting frame, the interior of the supporting frame is rotationally connected with a carbonization box, the exterior of the carbonization box is rotationally connected with a rotating sleeve, the rotating sleeve is fixedly connected to the position, away from the carbonization box, of the interior of the supporting frame, and an air outlet is formed in the position, close to the rotating sleeve, of the exterior of the carbonization box; an opening is formed in the position, close to the rotating sleeve, of the top of the supporting frame. According to the device, bamboos in the carbonization box can be uniformly heated through rotation of the carbonization box, heat and pressure are discharged along an exhaust outlet and an exhaust pipe by rotating the carbonization box in a rotating sleeve, the bamboos in the carbonization box are uniformly heated, and the problem that the bamboos on the top layer do not reach enough heat is solved. The problems that partial carbonization of the bamboos is unqualified and the strength of the bamboos does not meet the specification are solved, and the uniform carbonization effect of the bamboos in the carbonization box is improved.

To provide wooden tableware that allows the aroma of smoke (smoked food) to be felt more strongly and for a longer period of time, and a method for manufacturing the wooden tableware. [Solution] Wooden tableware 1 is tableware having an inner surface 1a in which the inner edge of a cross section perpendicular to a predetermined axis Z is a circle centered on said axis Z, and the tableware main body 10 having the inner surface 1a is carved out of hardwood or softwood (excluding bamboo). A smoked layer 5 is formed on a part (partial area) or the whole (entire area) of the inner surface 1a by a smoking process in which one or both of hardwood and softwood (excluding bamboo) is heated as a smoking material 6 and the smoke produced at that time is applied to the surface.

The invention relates to the technical field of bamboo product production, in particular to a preparation method of a Feizixiao bamboo product based on a bonding process. According to the method, the Feizixiao bamboo material is buried in a silt field to be treated for 300-500 days, the Feizixiao bamboo material is fully desugared and degreased, then the Feizixiao bamboo material is placed in a shady, cool and dry place for 600-800 days, spots and patterns on the bamboo green face of the Feizixiao bamboo material are clearer and ruddy, and compared with a direct drying mode, the Feizixiao bamboo material has better stability and can have the appearance quality of Hunan old Feizixiao bamboo; the treated Feizixiao Hunan bamboo material is broken into bamboo strips and bamboo chips in specific forms, first the first planes of the bamboo strips are mutually glued to form a semi-finished product with two bamboo green sides and two tabasheer sides so as to eliminate inward stress of bamboos and prevent inward deformation, and then the tabasheer sides on the two sides are planed and glued with the second planes of the bamboo chips to form a finished product. The bamboo pole has the advantages that the stability is better, deformation and bending are not prone to occurring, the main pole can be selected as the bamboo material, and bamboo green spots of the main pole are evenly and intensively distributed.

The utility model relates to the technical field of wood processing, and discloses a wood surface layer carbonization device with an adjustable welding gun position, which comprises a mounting seat, and an adjusting component is arranged on the top end face of the mounting seat. According to the wood surface layer carbonization device with the adjustable welding gun position, the corrugated groove drives the movable rod and the welding gun body to rotate around the movable block, the pitching angle of the welding gun body is adjusted, a larger output range is covered, the height difference of the wood surface can be more effectively adapted, a heat source is evenly distributed on the wood surface, dead corners are prevented during carbonization, and the carbonization efficiency is improved. The included angle between the wood and the mounting seat is adjusted, so that more angles can be exposed to the welding gun body, the welding gun can carbonize a plurality of side surfaces or complex surfaces of the wood, the carbonization is not limited to the upper surface, the processing is more flexible, and the welding gun is particularly suitable for the wood with the surface having radian, inclined surface or special shape; and each part to be carbonized can be uniformly treated.

The present application relates to the technical field of bamboo building material, and particularly relates to a bamboo-steel reinforced concrete skeleton structure production equipment, which comprises a groove pressing mechanism, the groove pressing mechanism is used for pressing grooves on the surface of the composite bamboo-steel and bending the bamboo-steel in the middle during movement; a stabilizing mechanism is arranged behind the groove pressing mechanism and is used for realizing the traction movement of the composite bamboo-steel and ensuring the stability of the composite bamboo-steel during movement; a penetrating mechanism is arranged between the groove pressing mechanism and the stabilizing mechanism and is used for penetrating connectors on the bamboo-steel in cooperation with the groove pressing mechanism, and the penetrating mechanism comprises a mounting piece for inserting the connectors on the bamboo-steel and a docking piece for assisting the mounting of the connectors. The technical problem that a large amount of manpower is required for the production of the bamboo-steel skeleton and the quality is unstable is solved.

The present application relates to the technical field of carbonization of burned fir board, in particular to a burned fir board carbonization treatment device, which comprises a cross beam, two storage rooms for storing wood boards are arranged on the lower side of the cross beam, a door plate is hingedly connected to the opening side of the storage room through a hinge, a bottom frame for supporting the wood boards is fixedly connected to the bottom of the storage room, detachable inner tubes are installed on the upper ends of the two storage rooms, outer tubes are sleeved on the inner tubes, the cross sections of the inner tubes and the outer tubes are all equilateral triangles, support lugs are fixedly connected to the lower edges of one side of the outer tubes, vertical holes are formed in the middle positions of the upper surfaces of the support lugs, vertical studs are inserted into the vertical holes, the lower ends of the studs are fixedly connected to the inner tubes, first nuts are arranged on the upper sides of the support lugs, and second nuts are arranged on the lower sides of the support lugs. The present application has the following beneficial effects: the uniformity of the carbonization treatment of the burned fir board is improved, and the carbonization treatment efficiency of the burned fir board is also improved.

The present application relates to hot pressing control technical field, disclose a kind of fine woodworking board hot pressing carbonization linkage control method and system, the method includes: obtaining the rebound of plate blank to be pressed, and obtain the state parameter of plate blank to be pressed.According to rebound and state parameter, determine whether plate blank to be pressed is in rebound stagnation risk state.When in, determine the dominant risk state.When in rebound dominant risk state, carry out slow pressure rise and shape stability, according to the thickness change of plate blank compression Limit speed temperature rise and decompression steam of edge portion, after steam end, carry out final pressure curing under the condition of limiting edge portion temperature rise upper limit.When determining in stagnation dominant risk state, carry out edge portion limited speed temperature rise, according to the surface temperature difference of edge portion and center and the thickness change of plate blank compression Decompression steam is carried out, after steam end, final pressure curing is carried out.When not in, carry out reference hot pressing control.The present application inhibits edge portion carbonization, improves internal bonding quality, improves product qualification rate.

The invention discloses a mildew-proof and antibacterial bamboo-wood curtain material and a preparation method thereof, and belongs to the field of building materials. The material is prepared from wormwood, golden cypress, tea polyphenol, nano-zinc oxide, chitosan, a silane coupling agent and bamboo wood through the processes of nitrogen carbonization, ultrasonic extraction of natural components, plasma activation, microwave curing, silane hydrophobic modification and the like. Flavones, volatile oil, phellodendron berberine and tea polyphenols are synergistically antibacterial through multiple mechanisms of blocking metabolism, destroying cell membranes and the like, nano-zinc oxide photocatalysis and a chitosan cross-linked network are combined, a composite antibacterial system with the antibacterial rate exceeding 99% is formed, a hydrophobic layer with the contact angle larger than or equal to 93.2 degrees is constructed through a silane coupling agent, the water content is smaller than or equal to 8%, and mold growth is fundamentally inhibited. Tests show that the compressive strength of the material is improved by 22%, the antibacterial rate still reaches 96.2% after 50 times of water washing, and the material has the characteristics of high-efficiency antibacterial property, lasting mildew resistance, hydrophobicity, moisture resistance and high strength, and is suitable for bamboo and wood products such as curtains in a high-humidity environment.

The invention relates to the technical field of nano materials, and discloses a preparation method and application of a water evaporation nano material based on wood surface chemical modification, and the preparation method comprises the following steps: S1, cleaning and drying natural balsa wood to prepare wood chips; s2, the wood chips are soaked in an acidic NaClO2 solution, after heat preservation treatment, washing and drying are conducted, and delignified wood is obtained; s3, the delignified wood is soaked in a cellulose nanocrystal aqueous dispersion, and cellulose nanocrystal soaked wood is obtained after freeze drying; and S4, under the condition of 280-320 DEG C, the cellulose nanocrystal soaked wood is subjected to heating treatment, and the water evaporation nanometer material is obtained. The water evaporation nano-material prepared by the method is good in stability and high in evaporation efficiency, is applied to a water evaporation nano-generator, contributes to providing a power generation effect, and has an extremely good application prospect.

This invention belongs to the field of tableware, and specifically relates to a processing method for bamboo knives. The method is characterized by the following steps: material selection; cutting bamboo; and obliquely cutting slices with bamboo skin on the outer arc surface at the cross-section; semi-finished product processing; splitting the slices in half from the middle to form two semi-finished products with gradually decreasing thickness from one side to the other, and from one end of the cross-section to the other; the other side of each semi-finished product forms a blade made of bamboo skin; and knife-shaped processing; processing one end of each semi-finished product into a handle to form the bamboo knife. In this invention, the bamboo knife manufactured using this processing method is more environmentally friendly. Furthermore, because one side of the split blade has a thicker back, and the other side has a thinner blade formed from bamboo skin, the overall structure of the bamboo knife is stronger, the blade is harder, and it is sharper, meeting the cutting needs of a wider variety of ingredients.

The utility model relates to the technical field of furniture carbonization, and provides a bamboo furniture carbonization device which comprises a carbonization tank, a plurality of positioning sleeves are fixedly connected to the bottom of the inner surface of the carbonization tank, positioning rods are movably embedded in the inner surfaces of the positioning sleeves, and a bearing plate is fixedly connected to the tops of the positioning rods. A rotating rod is rotatably connected to the interior of the bearing plate, a rotating disc is fixedly connected to the top of the rotating rod, a worm gear is fixedly connected to the bottom of the rotating rod, a worm is connected to the outer surface of the worm gear in a meshed mode, two shaft plates are rotatably connected to the outer surface of the worm, and one end of each shaft plate extends out. The device is provided with a rotary heating carbonization structure, so that each surface and the interior of the bamboo furniture can be carbonized at a proper temperature, the situation that the wood surface is burnt or the internal carbonization degree is inconsistent due to local overheating is avoided, and the situation that a table top is bent and deformed due to stress generated by thermal expansion of one side is avoided; and the stress distribution is not uniform.

The present application relates to the field of wood drying carbonization, and discloses an integrated device for wood drying carbonization, which comprises a carbonization tank, a supporting frame and a gas supply mechanism, the carbonization tank is horizontally arranged and is provided with a tank cover at an opening, the outer circular surface of the carbonization tank is provided with a notch, the driving member comprises a gear parallel to the carbonization tank and a motor for driving the gear to rotate, the gear partially extends into the carbonization tank, the supporting frame comprises a main frame, the upper end of the main frame is open and is detachably provided with a secondary frame, the main frame and the secondary frame form a frame shape with an outer circle and an inner square, a plurality of ball bearings are arranged on the outer surface of the supporting frame, a main gear ring is arranged on the main frame, and a secondary gear ring is arranged on the secondary frame, the main gear ring and the secondary gear ring form a complete gear ring when the main frame and the secondary frame are connected, the ball bearings are in contact with the tank wall of the carbonization tank when the supporting frame is located in the carbonization tank, and the gear is in mesh with the gear ring.

The utility model relates to the technical field of building material processing, in particular to a flaming device of a fire board, which comprises a combustion device, a base is fixedly mounted below the combustion device, an auxiliary board is fixedly mounted on one side of the combustion device, and baffles are mounted on two sides of the auxiliary board. A control block is fixedly connected to the upper portion of the combustion device, a connecting rod A is rotationally connected to one side of the control block, a connecting rod C is rotationally installed on one side of the connecting rod A, a push rod is slidably connected to one side of the connecting rod A, a sliding sleeve is fixedly installed on the connecting rod C, and a supporting rod is slidably connected to the interior of the sliding sleeve. According to the fire spraying device of the fire board, when the combustion device descends to a proper position, the baffle installed on one side of the combustion device descends synchronously, so that the situation that the surface of the fire board is heated unevenly due to the fact that flames deviate to one side due to the fact that the combustion device is affected by wind during combustion is avoided.

The invention discloses a carbonized balsa wood core material for a wind power blade and a preparation method and application of the carbonized balsa wood core material, and relates to the technical field of wind power blades. According to the technical scheme, the preparation method of the carbonized balsa wood core material for the wind power blade comprises the following steps that round balsa wood is cut and processed into battens, then the battens are sequentially subjected to carbonization treatment and drying treatment, and then the battens are squared to form a BLOCK blank; and the BLOCK green body is sequentially subjected to flat cutting repairing, sanding, four-edge cutting, surface treatment, grooving and punching, dicing, chamfering and sleeve cutting, and the carbonized balsa wood core material for the wind power blade is obtained. According to the carbonized balsa wood core material prepared through the preparation method of the carbonized balsa wood core material for the wind power blade, on the premise that the inherent advantages of low density and high specific strength of balsa wood are reserved, the moisture content is stably controlled to be 6%-8% for a long time, the dry shrinkage rate is smaller than or equal to 2%, and the carbonized balsa wood core material can meet the service requirement of the wind power blade.

A straw indirect carbonization-based soil improvement method and system, the method comprising the following steps: (A) collecting straw, cutting the straw into straw particles; (B) extruding and destroying the surface of the straw particles; (C) using microwave heating to extrude the straw particles, obtaining puffed straw particles; (D) carbonizing the surface of the puffed straw particles, obtaining carbonized particles for discharge into soil. The indirect carbonization method of first breaking the wall and then puffing and carbonizing the surface can significantly reduce the energy consumed during carbonization and shorten the processing time of the straw, which is conducive to the straw carbonization and field application treatment of a large area of soil. At the same time, the surface-carbonized carbonized particles can provide sufficient biomass carbon for the soil, and it is not necessary to remove part of the carbonized particles from the field due to the excessive biomass carbon of the soil. In addition, the carbonized particles also well retain the nutrients in the straw.

The invention relates to the technical field of bamboo processing, in particular to a bamboo multistage vacuum carbonization process. Comprising the steps that bamboo wood is put into a closed container, the bamboo wood is subjected to multiple times of carbonization treatment in the closed container, and each time of carbonization treatment comprises circulation of the steps of vacuumizing, vacuumizing stopping and steam introducing; the vacuum degree of the container for each carbonization treatment is in a range of-90KPa to-10KPa, and the pressure value for each carbonization treatment is gradually increased or kept; in each carbonization treatment, the temperature in the container after the steam is introduced is 100-120 DEG C, and the step of introducing the steam is omitted in the last carbonization treatment. Compared with a high-temperature and high-pressure hot pressing method, the bamboo processing technology adopting low-temperature and low-pressure multi-stage vacuum carbonization has the advantages that the comprehensive performance is improved, more importantly, equipment does not need to be manufactured according to the standard of a pressure container, the cost is lower, the safety is higher, and the energy consumption is more advantageous.

The invention discloses a solid wood floor blank and a microwave internal carbonization treatment method thereof, which comprises the following steps of: performing water soaking treatment and microwave treatment on the floor blank, and regulating and controlling the water content, the microwave radiation time or the microwave radiation power of the floor blank after water soaking, so that the surface color of the floor blank is kept unchanged; and the internal carbonization degree of the floor blank is accurately controlled, so that the solid wood floor with the preset internal carbonization effect is obtained. The method overcomes the technical problems of large surface color change, long treatment period, high energy consumption and the like in the existing wood floor blank high-temperature heat treatment process, takes microwaves as a heat source, establishes a carbonization degree and multi-parameter correlation model by adjusting the water content of the floor blank, does not need to add chemical reagents, and is suitable for large-scale production. The internal carbonization degree can be accurately controlled, the size stability of the floor blank is effectively improved, the method has the advantages of being good in carbonization effect, high in treatment efficiency, capable of saving energy, environmentally friendly and the like, and a novel green and efficient method is provided for functional modification of wood.

This invention provides a novel bamboo pallet manufacturing process, relating to the field of pallet processing technology. The novel bamboo pallet manufacturing process includes preliminary treatment, pre-processing, mid-processing, and final assembly. The preliminary treatment includes bamboo cutting, bamboo impaction, and rough milling. Based on the conical shape of the bamboo, the bamboo is cut to the required length and dimensions according to product requirements and specifications. The bamboo segments are then split into pieces, sorted by thickness and width, and the outer green and yellow parts are removed. Through a combination of drying, carbonization, hot pressing, and cold pressing processes, along with subsequent curing treatments, the internal stress of the bamboo is effectively eliminated, significantly reducing its moisture absorption expansion and drying shrinkage rates. The resulting bamboo panels have good flatness and low warping. The pallets made from this process maintain excellent dimensional stability and structural integrity even under complex temperature and humidity environments, extending their service life.

The utility model relates to the technical field of bamboo floor production equipment, in particular to a bamboo floor hot-pressing carbonization composite device which comprises a machine body, a heating table is installed on the inner wall of the machine body, an air cylinder is installed on the upper surface of the machine body, a hot-pressing plate is fixedly connected to the end of a driving shaft of the air cylinder, and the hot-pressing plate is located in the machine body. A cabin door is installed on the inner wall of the machine body, a controller is installed on the right side of the machine body, an assisting device is arranged on the left side of the machine body and comprises a storage box, a first placing frame is slidably connected to the inner wall of the storage box, and a second placing frame is fixedly connected to the front surface of the first placing frame. And the left side of the machine body is fixedly connected with a fan. According to the device, the assisting device is arranged, so that the device can dry a material to be processed by utilizing waste heat of the device during processing, the waste heat utilization efficiency of the device is improved, the energy waste of the device is reduced, and the environmental protection property of the device is improved.

This invention discloses an integrated equipment for continuous micro-carbonization and molding of round bamboo, comprising a drying and feeding device, an integrated micro-carbonization and molding device, and a continuous cooling and discharging device. The outlet of the drying and feeding device is connected to the inlet of the integrated micro-carbonization and molding device, and the outlet of the integrated micro-carbonization and molding device is connected to the inlet of the continuous cooling and discharging device. This invention, through the integrated design of the drying and molding devices, achieves continuous operation of micro-carbonization and molding of round bamboo, offering advantages such as continuous operation, high system energy efficiency, reasonable structure, avoidance of environmental pollution, and full utilization of waste heat. This solves the problem of continuous operation in the processing and molding of round bamboo, effectively improving production efficiency.

The invention discloses integrated processing equipment for bamboo stick carbonization forming, and relates to the technical field of forming, the integrated processing equipment comprises a case, the lower part in the case is fixedly connected with a heating wire, the middle of the upper part of the case is communicated with an air outlet pipe, the interior of the case is fixedly connected with guide plates symmetrically distributed along the case, and the interior of the case is slidably connected with a first placing rack; a second placing frame is placed on the first placing frame, a vent groove is formed in the middle of the second placing frame, a plurality of air outlets are formed in each of the first placing frame and the second placing frame, and fan blades symmetrically distributed along the machine box are rotationally connected into the machine box. The first placing rack and the second placing rack which are stacked up and down are arranged, hot air flow generated by the heating wire penetrates through the air outlets of the first placing rack and the second placing rack, the motor is matched to drive the fan blades and the flow guide plate structure, the hot air flow is reasonably distributed to all layers of bamboo sticks, and it is ensured that the multiple layers of bamboo sticks are evenly heated in the carbonization process; and the carbonization quality and consistency are effectively improved.