Biomass carbonization cracking device

Abstract

The invention belongs to the technical field of carbonization equipment, and particularly relates to a biomass carbonization cracking device which comprises a furnace body and a support, the furnace body is rotationally arranged on the support, a spiral reinforcing rib body is arranged on the inner surface of the furnace body and is formed by connecting a plurality of rib pieces, at least one rib piece is connected with a movable supporting plate, and the movable supporting plate is connected with the furnace body. The movable support plate is in contact with the inner surface of the furnace body; the rib sheets are driven to move by moving the movable supporting plate, so that the reinforcing rib bodies are converted between the stretching state and the shortening state, and the movable supporting plate is further in contact with the inner surface of the furnace body. Carbonization of the cotton straw and cracking of the waste mulching film are combined into a whole, adhesion of coking substances to the inner surface of the furnace body is reduced, the production process is shortened, the operation difficulty is simplified, and environmental protection is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of carbonization and cracking equipment, and in particular relates to a biomass carbonization and cracking device. Background Art

[0002] The technology of planting cotton by covering cultivated land with film has been implemented for many years. Cotton stalks and waste mulch are wastes obtained after agricultural production. Governing these wastes can alleviate the problem of white pollution. At present, the means of treating waste mulch is to collect waste mulch from cotton cultivated land, and then send it to the factory, clean the waste mulch, and make it into polyethylene particles. However, waste mulch, cotton stalks, and soil are mixed together. It is necessary to first completely separate the cotton stalks, soil, and waste mulch, and then take the waste mulch, and then use the cleaned waste mulch to produce polyethylene particles. These processes are costly, and due to the wide variety of polyethylene products in the prior art, the polyethylene granules produced using waste mulch are not competitive in the market. Once unsalable, secondary pollution will also occur. High-temperature cracking of waste mulch to produce fuel oil and finally form a solid product carbon black is also a means of recycling waste mulch. This method can supplement oil resources, has great market competitiveness, and carbon black can be widely used in coatings and other fields, so the treatment method of cracking waste mulch is of application value. Cotton straw is carbonized into biochar at high temperature. Biochar is a means of harmless recycling of straw. Biochar can be used as organic fertilizer to improve soil environment and promote crop growth.

[0003] In the existing high-temperature treatment process, the process of carbonizing cotton straw into biochar needs to be carried out in a carbonization furnace, and the carbonization temperature is as high as 450℃ to 800℃. The pyrolysis of waste mulch is usually carried out in a pyrolysis furnace, and the pyrolysis temperature is about 350℃. However, the carbon steel material furnace of the existing technology cannot process cotton straw and waste mulch at the same time because of its heat resistance temperature of about 500℃. On the other hand, since the carbonization product of cotton straw and the pyrolysis product of waste mulch have different components and physical and chemical properties, and the technology of planting cotton on cultivated land with mulch is mixed with cotton straw and waste mulch, even if there is a carbonization furnace of suitable material that can meet the heat treatment temperature requirements of cotton straw and waste mulch, the heat treatment process of the mixture will also produce coking materials, which are easy to adhere to the inner surface of the furnace body and affect the heat transfer of the furnace body.

[0004] In summary, it is necessary to develop a device suitable for treating a mixture of cotton straw and waste mulch film. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a biomass carbonization cracking device, which can meet the temperature treatment requirements when processing cotton straw and waste mulch for waste recycling and utilization, and can also avoid coking materials adhering to the inner surface of the furnace body, which is beneficial to the heat transfer of the furnace body.

[0006] The object of the present invention is to provide a biomass carbonization cracking device, comprising a furnace body and a bracket, the furnace body is made of a material that can withstand high temperatures above 650°C, the furnace body is rotatably arranged on the bracket, the inner surface of the furnace body is provided with a spiral reinforcing rib body, the reinforcing rib body is formed by connecting a plurality of rib sheets, at least one of the rib sheets is connected to a movable support plate, and the movable support plate is in contact with the inner surface of the furnace body; the reinforcing rib body includes an elongated state and a shortened state, the lateral spacing of the plurality of rib sheets when the reinforcing rib body is in the elongated state is greater than the lateral spacing of the plurality of rib sheets when the reinforcing rib body is in the shortened state, and the movement of the rib sheets is driven by moving the movable support plate to realize the transformation of the reinforcing rib body between the elongated state and the shortened state.

[0007] Preferably, in the above-mentioned biomass carbonization and cracking device, the rib sheet is in contact with the inner surface of the furnace body, and the movable support plate is arranged on the side wall of the rib sheet.

[0008] Preferably, in the above-mentioned biomass carbonization and cracking device, at least one movable support plate is connected to both sides of each of the ribs.

[0009] Preferably, in the above biomass carbonization and pyrolysis device, the edge thickness of the movable support plate is 1 mm to 3 mm, such as 1 mm, 2 mm, or 3 mm.

[0010] Preferably, in the above-mentioned biomass carbonization and cracking device, the movable support plate is a three-dimensional structure formed by splicing a curved surface and a flat surface, and the curved surface is used to contact the inner surface of the furnace body.

[0011] Preferably, in the above-mentioned biomass carbonization and cracking device, the ends of adjacent ribs are connected by connecting pieces to eventually form a spiral shape.

[0012] Preferably, in the above-mentioned biomass carbonization and cracking device, the connecting piece is a wedge-shaped structure.

[0013] Preferably, in the above-mentioned biomass carbonization cracking device, when in the shortened state, the lateral spacing between adjacent movable support plates is 10cm to 30cm, such as 10cm, 15cm, 20cm, 25cm, and 30cm; when in the extended state, the lateral spacing between adjacent movable support plates is 40cm to 60cm, such as 40cm, 45cm, 50cm, 55cm, and 60cm.

[0014] Preferably, in the above-mentioned biomass carbonization and pyrolysis device, the number of the ribs is 5 to 50.

[0015] Preferably, in the above-mentioned biomass carbonization and cracking device, the furnace body is rotatably arranged on the bracket via the first rotating shaft;

[0016] Alternatively, the furnace body includes an inner tube, the bracket includes legs and an outer tube, the legs are connected to the outer tube, the inner tube is rotatably connected to the inner tube via a rotating shaft, and the outer tube is coaxially arranged with the inner tube.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The biomass carbonization and cracking device of the present invention is suitable for heat treatment of a mixture of cotton straw and waste mulch film, wherein the furnace body is made of a material resistant to high temperatures above 650°C, and a spiral reinforcing rib body is arranged on the inner surface of the furnace body, so that when the furnace body rotates in the forward direction, the mixture of cotton straw and waste mulch film is transported to the inside of the furnace body, and when the furnace body rotates in the reverse direction, the product after the heat treatment can be discharged from the furnace body, thereby combining the carbonization of the cotton straw and the cracking of the waste mulch film; the movement of the rib sheet is driven by moving the movable support plate, thereby realizing the transformation of the reinforcing rib body between the elongated state and the shortened state; the movable support plate is also in contact with the inner surface of the furnace body, and the movable support plate is used to scrape off the coking material adhered to the inner surface of the furnace body during the movement of the movable support plate, so as to avoid the problem that the coking material adheres to the inner surface of the furnace body and affects the heat transfer of the furnace body, shortening the production process, reducing the investment in equipment, reducing energy consumption, being beneficial to environmental protection, increasing the production efficiency, and greatly reducing the difficulty of recycling cotton straw and waste mulch film.

[0019] In addition, the reinforcing rib body of the present invention is formed by connecting a plurality of rib sheets, which can reduce the resistance of the reinforcing rib body when changing between the extended state and the shortened state while strengthening the furnace body, thereby reducing energy consumption. Moreover, by providing a connecting piece with a wedge-shaped structure, the splicing and separation of the rib sheets becomes easy. During the splicing and separation process, the wedge-shaped structure is also used to clean the materials adhering to the inner surface of the furnace body, thereby improving the problem of poor heat transfer in the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the biomass carbonization and cracking device of the present invention.

[0021] Figure 2 This is a cross-sectional view of the biomass carbonization and cracking device of the present invention, showing the structure of the first furnace body.

[0022] Figure 3 This is a cross-sectional view of the biomass carbonization and cracking device of the present invention, showing the structure of the second furnace body.

[0023] Figure 4 It is a schematic diagram of the structure of the reinforcing rib of the present invention, in an extended state.

[0024] Figure 5It is a schematic diagram of the structure of the reinforcing rib of the present invention, in a shortened state.

[0025] Figure 6 It is a schematic diagram of the transverse cross-sectional structure of the connection structure between the movable support plate and the rib sheet of the present invention.

[0026] Figure 7 The present invention is a structural schematic diagram of a movable support plate.

[0027] Figure 8 This is a positional relationship diagram of the three ribs and two movable support plates of the present invention.

[0028] Fig. 9 This is the connection diagram between the ribs and the connectors.

[0029] Fig.10 This is a schematic diagram of the cross-sectional structure after two connecting parts are spliced ​​together. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand and implement the technical solution of the present invention, the present invention is further described below in conjunction with specific embodiments and drawings.

[0031] In the description of the present invention, unless otherwise specified, all reagents used are commercially available and all methods used are conventional techniques in the art.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The inventive concept of the present invention is as follows:

[0036] The carbonization temperature of cotton straw into biochar organic fertilizer is 450℃~800℃. This temperature range is for producing biochar organic fertilizer with different functions. If the temperature is lower than 450℃, the biochar produced will have a small specific surface area, and the function will not meet the use requirements of organic fertilizer, and will not achieve the corresponding use effect. The carbonization furnace equipment currently produced on the market for making charcoal has no clear temperature requirements for charcoal products, and the carbonization furnace does not produce charcoal in an oxygen-free environment. In order to meet environmental protection requirements, some carbonization furnace manufacturers recycle the flue gas produced when the carbonization furnace produces charcoal, so there are by-products such as wood tar, non-condensable gas, and wood vinegar. At present, the carbonization furnace equipment on the market is made of ordinary carbon steel, and the safe use temperature of carbon steel is up to 500℃. The thermal cracking temperature of waste mulch is 350℃, and the target products of waste mulch cracking are non-condensable gas, fuel oil, and carbon black. At present, the carbonization furnace equipment in the existing technology cannot process cotton straw and waste mulch film at the same time; in addition, the cotton straw and waste mulch film produced by the technology of covering cultivated land with film to grow cotton are mixed. Even if there is a carbonization furnace with suitable materials to meet the heat treatment temperature requirements of cotton straw and waste mulch film, the heat treatment process of the mixture will produce coking materials, which are easy to adhere to the inner surface of the furnace body and affect the heat transfer of the furnace body.

[0037] Based on the above reasons, the present invention provides a biomass carbonization pyrolysis device, the heat treatment temperature is set to 650°C, so that in the process of heat treating the mixture of cotton straw and waste mulch film, the production demand is met. Figure 1 and Figure 2, including a furnace body 1 and a bracket 2, the furnace body 1 is made of a material that can withstand high temperatures above 650°C, such as high-purity alumina microcrystalline fiber or ceramic fiber. The furnace body 1 is rotatably arranged on the bracket 2, and a spiral reinforcing rib body 3 is arranged on the inner surface of the furnace body 1, so that when the furnace body 1 rotates in the forward direction, the mixture of cotton straw and waste mulch film is transported to the inside of the furnace body 1, and when the furnace body 1 rotates in the reverse direction, the product after the heat treatment can be discharged from the furnace body 1. The reinforcing rib body 3 is connected by a plurality of rib pieces 31, and at least one movable support plate 32 is connected to a rib piece 31. The reinforcing rib body 3 includes an elongated state and a shortened state. When the reinforcing rib body 3 is in the elongated state, the lateral spacing of the plurality of rib pieces 31 is greater than the lateral spacing of the plurality of rib pieces 31 when the reinforcing rib body 3 is in the shortened state. By moving the movable support plate 32, the movement of the rib piece 31 is driven, thereby realizing the transformation of the reinforcing rib body 3 between the elongated state and the shortened state. The movable support plate 32 is also in contact with the inner surface of the furnace body 1. During the movement of the movable support plate 32, it is used to scrape off the coking material adhering to the inner surface of the furnace body 1, so as to avoid the problem that the coking material adheres to the inner surface of the furnace body and affects the heat transfer of the furnace body. Therefore, the reinforcing ribs 3 can not only increase the strength of the biomass carbonization and pyrolysis device and improve safety, but also facilitate the transportation of materials and the normal operation of the biomass carbonization and pyrolysis device.

[0038] Based on the above working principle, the biomass carbonization and cracking device of the present invention is suitable for the thermal treatment of a mixture of cotton straw and waste mulch film, combining the carbonization of cotton straw and the cracking of waste mulch film into one, shortening the production process, simplifying the difficulty of operation, reducing equipment investment, improving the level of environmental protection, reducing energy consumption, increasing production benefits, and greatly reducing the difficulty of project promotion.

[0039] Next, taking Embodiment 1 as an example, the structure and working principle of the present invention are described in detail.

[0040] A biomass carbonization and pyrolysis device, see Figure 1 and Figure 2 , including a furnace body 1 and a bracket 2. As the core reaction area of ​​the entire biomass carbonization and cracking device, the furnace body 1 has strict requirements on the material. In this embodiment, materials that can withstand high temperatures above 650°C are selected, such as high-purity alumina microcrystalline fibers or ceramic fibers. These materials, with their own high-temperature resistance, build a safe reaction fortress to ensure that during the high-temperature treatment process of biomass carbonization and cracking, the furnace body 1 has a stable structure and will not be deformed or damaged due to high-temperature erosion, which may endanger the operation of the device and even the safety of the operator.

[0041] In the first furnace body 1 structure, the furnace body 1 adopts the reference Figure 1The structure comprises a drum 11, a sealing cover 12 is provided on the side wall of the drum, a heater is provided in the drum 11, and at least one of a controller, a spray pipe, a filter, a dust collector, and a heater is provided. The controller is a PLC controller. The present invention rotates the furnace body 1 on the bracket 2 through the first rotating shaft 13. More specifically, the bracket 2 comprises a bottom support 20 and a side support 201. The bottom support 20 is placed and connected to the bottom of the furnace body 1. The top surface of the bottom support 20 is smooth and contacts the outer surface of the furnace body 1, and the bottom support 20 does not affect the rotation of the furnace body 1; the number of the side supports 201 is two, which are respectively located on both sides of the drum 11, and the first rotating shaft 13 is located on the axis of the furnace body 1. The number of the first rotating shaft 13 is two, one of which is provided on the sealing cover 12. When the sealing cover 12 is closed and covered at the side outlet 16 of the drum 11, the first rotating shaft 13 is connected between the drum 11 and the side support 201, and the other first rotating shaft 13 is provided between the other side support 201 and the surface of the drum 11. The furnace body 1 is a horizontal drum structure, and its central axis is horizontal. This embodiment adopts the structure of the furnace body 1 of the prior art. For the convenience of feeding, the side wall of the furnace body 1 is also provided with a feeding port 14 and a closing plate 15 hinged at the feeding port 14; or feeding and discharging can be directly carried out from the side outlet 16 where the sealing cover 12 is installed.

[0042] In the second structure of the furnace body 1, the furnace body 1 adopts the reference Figure 3 The structure comprises an inner cylinder 101, and the bracket 2 comprises a leg 21 and an outer cylinder 22. The inner cylinder 101 is rotatably connected to the inner part of the outer cylinder 22 through a second rotating shaft 103. The outer cylinder 22 is coaxially arranged with the inner cylinder 101. A heater is arranged in the inner cylinder 101, and at least one of a controller, a spray pipe, a filter, a dust collector, and a heater is also arranged. More specifically, an end cover 102 is arranged at the inner cylinder 101, and an outer cover 221 is connected to the side flange of the outer cylinder 22 on the same side as the end cover 102. The outer cover 221 is also flange-connected to the shaft 103. The flange connection relationship enables the outer cover 221 and the end cover 102 to move in and out directly without rotating the outer cover 221. It should be noted that a sealing component is arranged at the flange connection, such as a graphite sealing gasket. The outer cylinder 22 is fixedly arranged on the top of the supporting leg 21, and the number of the second rotating shafts 103 is two, one of which is connected to the end cover 102. When the end cover 102 is closed and covered on the side outlet of the inner cylinder 101, the second rotating shaft 103 is connected between the inner cylinder 101 and the outer cover 221, and the second rotating shaft 103 is rotatable. The other second rotating shaft 103 is connected between the other side wall of the inner cylinder 101 and the outer cylinder 22. After opening the outer cover 221, the end cover 102 can be opened, and then materials can be transported into the inner cylinder 101, or materials can be discharged from the inner cylinder 101.

[0043] The support 2 bears the weight of the furnace body 1 and other components, and provides solid support for the rotation of the furnace body 1. Note that the design of the support 2 is not arbitrary, and its structure needs to ensure that when the furnace body 1 is fully loaded with a mixture of cotton straw and waste mulch and rotates, the device can still maintain balance and stability.

[0044] Since cotton straw is loose but slightly tough, while waste mulch film is thin and easy to entangle, after these two materials are mixed together, coking substances will be produced during heat treatment. Therefore, the present invention provides a spiral reinforcing rib 3 on the inner surface of the furnace body 1, so that when the furnace body 1 rotates in the forward direction, the guiding effect of the spiral reinforcing rib 3 provides a pushing force to avoid material accumulation and blockage at the entrance of the furnace body 1, so that the mixture of cotton straw and waste mulch film can be smoothly transported to the inside of the furnace body 1.

[0045] After the heat treatment, the products have different shapes and uneven particle sizes, and even coke material adheres to the inner surface of the furnace body 1. When the furnace body 1 rotates in the reverse direction, the products after the heat treatment can be smoothly discharged from the furnace body 1. The rotation of the furnace body 1 and the reinforcement rib 3 realize the automation and efficiency of the material flow in the furnace body 1, greatly improving the overall production efficiency and reducing the uncertainty and cost consumption caused by manual intervention.

[0046] The reinforcing rib body 3 is composed of a plurality of ribs 31 connected together, and the movable support plate 32 is in contact with the inner surface of the furnace body 1. The ribs 31 are the main structural part of the reinforcing rib body 3. Their curved arcs are adapted to the circumferential contour of the inner wall of the furnace body 1, and they fit closely without interfering with each other, and also strengthen the overall strength of the furnace body 1 from the perspective of mechanical structure. In a high-temperature reaction environment, the furnace body 1 is subjected to multiple stress changes such as material rolling and collision, thermal expansion and contraction, etc. The ribs 31 can disperse these stresses, prevent local stress concentration from causing cracks in the furnace body 1, and ensure the long-term stable operation of the device.

[0047] The reinforcing rib body 3 includes an extended state and a shortened state. The lateral spacing of the plurality of ribs 31 when the reinforcing rib body 3 is in the extended state is greater than the lateral spacing of the plurality of ribs 31 when the reinforcing rib body 3 is in the shortened state. Figure 4 When the reinforcing rib body 3 is in the extended state, the lateral spacing of the plurality of rib pieces 31 is H1. Figure 5, the lateral spacing of the multiple ribs 31 when the reinforcing rib body 3 is in the shortened state is H2. At least one movable support plate 32 is connected to a rib 31, and the movable support plate 32 and the rib 31 have a linkage effect. By moving the movable support plate 32, the movement of the rib 31 is driven to realize the transformation of the reinforcing rib body 3 between the extended state and the shortened state. The adjustable characteristics of the extended state and the shortened state enable the device to play different roles in different operation stages. For example, in the initial startup and material filling stages of the device, the reinforcing rib body 3 is adjusted to the extended state, which can expand the distribution space of the material in the furnace body, avoid material accumulation, and ensure uniform initial heating; in the middle and late stages of heat treatment, as the material gradually transforms and shrinks in volume, the rib body can be shortened, while maintaining a reasonable material flow channel in the furnace body, promoting product discharge, and optimizing the overall reaction process.

[0048] The movable support plate 32 is also in contact with the inner surface of the furnace body 1. As the reinforcing rib body 3 changes between the extended state and the shortened state, the movable support plate 32 is also in a reciprocating movement process, which can scrape off the coking material adhering to the inner surface of the furnace body 1. During the biomass carbonization and cracking process, after the coking material adheres to the inner surface of the furnace body 1, as the thickness increases, the heat transfer efficiency of the furnace body will continue to be weakened, causing uneven heating of the material and a significant reduction in the reaction rate. In severe cases, it may even cause local overheating and cause safety hazards. The reciprocating movement of the movable support plate 32 can eliminate these safety hazards, ensure that the furnace body always maintains an efficient heat transfer state, and ensure that the biomass carbonization and cracking device can steadily and continuously produce high-quality products.

[0049] Exemplarily, the ribs 31 are in contact with the inner surface of the furnace body 1 , and the movable support plate 32 is arranged on the side wall of the ribs 31 , and the movement of the ribs 31 and the movable support plate 32 can scrape off the coked materials adhered to the inner surface of the furnace body 1 .

[0050] Exemplarily, at least one of the movable support plates 32 is connected to both sides of each rib 31. For example, if one of the movable support plates 32 is connected to both sides of each rib 31, on the one hand, the internal structure of the furnace body 1 is relatively symmetrical to ensure stability. On the other hand, the provision of multiple movable support plates 32 can repeatedly scrape off coking materials from multiple locations, thereby improving the cleaning efficiency of coking materials.

[0051] Exemplarily, the thickness of the edge of the movable support plate 32 is 1 mm to 3 mm, such as 1 mm, 2 mm, and 3 mm. Preferably, the thickness of the edge of the movable support plate 32 used to directly connect the rib sheet 31 is set to 5 mm to 20 mm, such as 5 mm, 10 mm, 15 mm, and 20 mm, and extends in a direction away from the rib sheet 31, such as along Figure 6 The movable support plate 32 extends in the direction indicated by the arrow, and the thickness of the movable support plate 32 gradually decreases. The movable support plate 32 of this structure can increase the speed of scraping off the coked material.

[0052] For example, refer to Figure 7 The movable support plate 32 is a three-dimensional structure composed of a curved surface and a flat surface. The curved surface is used to contact the inner surface of the furnace body 1, and the shape of the curved surface is adapted to the shape of the inner surface of the furnace body 1. The flat surface is used to directly contact the material inside the furnace body 1. Preferably, the flat surface is set to a smooth surface to reduce the probability of coke adhesion thereon.

[0053] For example, refer to Figure 8 and Fig. 9 The ends of adjacent ribs 31 are connected by a connector 33, and finally a spiral shape is formed. While strengthening the furnace body 1, the resistance of the reinforcing rib 3 when changing between the extended state and the shortened state can be reduced, and energy consumption can be reduced. Moreover, by setting the connector 33 with a wedge structure, the splicing and separation of the ribs 31 becomes easy. Fig.10 The connecting piece 33 is a wedge-shaped structure. During the splicing and separation process, the wedge-shaped structure is also used to clean the material adhering to the inner surface of the furnace body 1, and can also improve the problem of poor and uneven heat transfer of the furnace body 1.

[0054] In order to facilitate the control of the reciprocating movement of the movable support plate 32, the movable support plate 32 closest to the sealing cover 12 is connected to the telescopic motor 4, and the telescopic motor 4 is used to control the reciprocating movement of the movable support plate 32. Note that if the telescopic motor 4 can withstand high temperatures above 650°C, the telescopic motor 4 can be operated during the carbonization and cracking process to drive the reciprocating movement of the movable support plate 32, thereby adjusting the expansion and contraction of the reinforcing rib body 3 to achieve the dual purpose of homogenizing the internal temperature of the material and scraping off the coked material; if the telescopic motor 4 cannot withstand high temperatures above 650°C, after the carbonization and cracking process is completed, when the internal temperature of the furnace body 1 drops to room temperature, the telescopic motor 4 is installed to control the reciprocating movement of the movable support plate 32, thereby adjusting the expansion and contraction of the reinforcing rib body 3 and scraping off the coked material, so as to achieve the cleaning of the coked material in the furnace body 1.

[0055] Exemplarily, a high temperature resistant cover is provided outside the telescopic motor 4 to prevent the telescopic motor 4 from being damaged by high temperature.

[0056] Exemplarily, in the shortened state, the lateral spacing between adjacent movable support plates is 10 cm to 30 cm, such as 10 cm, 15 cm, 20 cm, 25 cm, and 30 cm; in the extended state, the lateral spacing between adjacent movable support plates is 40 cm to 60 cm, such as 40 cm, 45 cm, 50 cm, 55 cm, and 60 cm. The number of ribs 31 is 5 to 50. These structural settings can better adapt to the movement of the ribs 31.

[0057] In summary, the biomass carbonization and cracking device provided by the present invention, through the cooperation of various components, not only strengthens the structural strength of the device itself to ensure safe production, but also achieves major breakthroughs in operational convenience such as material transportation and coking cleaning, and provides an integrated and high-efficiency solution for the carbonization and cracking of cotton straw and waste mulch film mixtures.

[0058] It should be noted that the component connection relationships not specifically mentioned in the present invention are assumed to adopt the existing technology. Since they do not involve the invention point and are widely used in the existing technology, the structural connection relationships are not described in detail.

[0059] It should be noted that when the present invention involves a numerical range, it should be understood that the two endpoints of each numerical range and any value between the two endpoints can be selected. Since the steps and methods used are the same as those in the embodiments, in order to avoid redundancy, the present invention describes a preferred embodiment. Although the preferred embodiments of the present invention have been described, once those skilled in the art know the basic inventive concept, they can make other changes and modifications to these embodiments, and these changes and modifications all fall within the scope of the present invention.

[0060] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. If these modifications and variations of the present invention fall within the scope of the equivalent technology of the present invention, the present invention is also intended to include these modifications and variations.

Claims

1. A biomass carbonization and pyrolysis device, comprising a furnace body (1) and a support (2), characterized in that: The furnace body (1) is made of a material that can withstand high temperatures above 650°C. The furnace body (1) is rotatably arranged on the bracket (2). A spiral reinforcing rib (3) is arranged on the inner surface of the furnace body (1). The reinforcing rib (3) is formed by connecting a plurality of ribs (31). At least one of the ribs (31) is connected to a movable support plate (32). The movable support plate (32) is in contact with the inner surface of the furnace body (1). The reinforcing rib body (3) includes an extended state and a shortened state. When the reinforcing rib body (3) is in the extended state, the transverse spacing of the plurality of rib pieces (31) is greater than the transverse spacing of the plurality of rib pieces (31) when the reinforcing rib body (3) is in the shortened state. The movement of the rib pieces (31) is driven by moving the movable support plate (32), so as to realize the transformation of the reinforcing rib body (3) between the extended state and the shortened state.

2. The biomass carbonization and pyrolysis device according to claim 1, characterized in that: The rib sheet (31) is in contact with the inner surface of the furnace body (1), and the movable support plate (32) is arranged on the side wall of the rib sheet (31).

3. The biomass carbonization and pyrolysis device according to claim 2, characterized in that: At least one movable support plate (32) is connected to both sides of each rib sheet (31).

4. The biomass carbonization and pyrolysis device according to claim 1, characterized in that: The edge thickness of the movable support plate (32) is 1 mm to 3 mm.

5. The biomass carbonization and pyrolysis device according to claim 1, characterized in that: The movable support plate (32) is a three-dimensional structure formed by splicing a curved surface and a flat surface, and the curved surface is used to contact the inner surface of the furnace body (1).

6. The biomass carbonization and pyrolysis device according to claim 1, characterized in that: The ends of adjacent ribs (31) are connected via a connecting piece (33) to eventually form a spiral shape.

7. The biomass carbonization and pyrolysis device according to claim 6, characterized in that: The connecting piece (33) is a wedge-shaped structure.

8. The biomass carbonization and pyrolysis device according to claim 1, characterized in that: In the shortened state, the lateral spacing between adjacent movable support plates (32) is 10 cm to 30 cm; in the extended state, the lateral spacing between adjacent movable support plates (32) is 40 cm to 60 cm.

9. The biomass carbonization and pyrolysis device according to claim 1, characterized in that: The number of the ribs (31) is 5 to 50.

10. The biomass carbonization and pyrolysis device according to claim 1, characterized in that: The furnace body (1) is rotatably arranged on the bracket (2) via a first rotating shaft (13); Alternatively, the furnace body (1) comprises an inner tube (101), the bracket (2) comprises a support leg (21) and an outer tube (22), the support leg (21) and the outer tube (22) are connected, the inner tube (101) is rotatably connected to the inside of the outer tube (22) via a second rotating shaft (103), and the outer tube (22) and the inner tube (101) are coaxially arranged.

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