Anti-winding and drag-reducing whole stem extrusion dewatering device for banana stem

Abstract

The present application relates to a kind of bamboo stem whole stem extrusion dewatering devices of anti-winding and drag reduction, and more particularly to a kind of adjustable extrusion dewatering equipment for herbaceous plant stem biomass with large volume, high water content and rich in bast fiber.The present application includes: compression roller structure, dehydration rack, speed reducer, motor, transmission structure, material conveying structure and residue dragging structure;Compression roller structure is installed in the interior of dehydration rack;Motor is connected with transmission structure through speed reducer and frequency converter;Transmission structure is connected with compression roller structure and material conveying structure;Material conveying structure is arranged at the feeding side of dehydration rack;Residue dragging structure is arranged at the discharging side of dehydration rack;Motor is connected with frequency converter, and the rotational speed of roller is adjusted by changing frequency.The technical scheme of the present application solves the problem that there is no equipment specially used for bamboo stem whole stem roller pressing and dewatering in the prior art.

Description

Technical Field

[0001] This invention relates to a banana stem whole-stalk extrusion and dehydration device for preventing tangling and reducing drag, and is particularly related to a banana stem whole-stalk extrusion and dehydration device for preventing tangling and reducing drag. Background Technology

[0002] Bananas are mainly produced in subtropical regions, cultivated in most parts of southern China, as well as parts of Shaanxi, Gansu, and Henan provinces. They are primarily distributed in Guangdong, Guangxi, Hainan, Guizhou, Sichuan, Yunnan, and Fujian provinces. Bananas belong to the genus *Musa* of the family Musaceae and are perennial herbaceous plants with long rhizomes, reaching 2.5–4 meters in height, with a stem cross-sectional diameter of 10–25 cm. The water content of banana stems is over 91%, and they are rich in bast fibers, which are long and strong. After the annual banana harvest, due to their high water content, large size, and heavy weight (20–60 kg), farmers often cut off the remaining banana stems and discard them in the banana fields. The waste from banana stems and other byproducts is substantial each year, constituting a significant portion of tropical agricultural waste resources. To reduce pollution from banana stem waste and increase the reuse of waste resources, many new forms, procedures, and methods for the comprehensive recycling of banana stem waste have emerged in recent years. Because banana stems have a high water content and a long rotting time, they are prone to breeding various pathogens and pests, leading to the widespread spread of banana diseases in the soil. Furthermore, the abundant bast fiber and sap contained in banana stems go unused, resulting in a waste of biomass resources. Besides their nutritional value, banana stems also have practical uses. Today, we emphasize natural, environmentally friendly, and green natural materials and fabrics, but these green fabrics were already prevalent nearly 2000 years ago during the Eastern Han and Wei-Jin periods. Banana fiber, a type of bast fiber, has excellent moisture absorption and wicking properties, and its relatively long length makes it an excellent textile raw material. my country has a large amount of banana stem waste, which can be fully utilized to compensate for resource shortages in papermaking and textiles. Banana stem sap can also be made into functional beverages with thirst-quenching effects. Bananas mostly grow in tropical southern regions and Southeast Asia. Banana farmers traditionally utilize banana stalks by manually breaking them up and scraping off the fibers, resulting in low productivity and hindering large-scale utilization. Current research both domestically and internationally has identified equipment for breaking up and scraping banana stalks, but the process is complex, time-consuming, and yields low fiber extraction rates. Furthermore, current research lacks reports on equipment for whole-stalk dehydration through compression.

[0003] In view of the problems existing in the above-mentioned existing technologies, it is necessary to study and design a new type of banana stalk whole-stalk extrusion and dehydration device with anti-tangling and drag reduction, so as to overcome the problems existing in the existing technologies. Summary of the Invention

[0004] The existing technology mentioned above does not provide dedicated equipment for whole-stalk roller pressing and dewatering of banana stalks. Existing equipment mainly involves breaking banana stalks into flakes and then extracting fibers through rubbing or scraping. These devices primarily focus on designing the fixed blades of the scraping machine. Some banana stalk processing equipment involves pushing and crushing the stalks for return to the field or for composting; this also mainly involves structural design of the crushing blades. The device for scraping and extracting banana stalk fibers after breaking them into flakes uses flat-bladed fixed blades, which easily break the banana stalk fibers, resulting in fragmented fiber impurities and a high impurity content in the obtained coarse fiber. Simultaneously, the banana stalk fibers become entangled on the roller shaft, causing blockages. In banana stalk return machines, the arc-shaped blade crushing device uses arc-shaped blades mounted on blade holders, with 16 blade holders on the roller. During operation, the problem of uncut banana stalk fibers entangled on the roller, causing blockages, still exists. No whole-stalk pressing and dewatering equipment for banana stalks has been found in domestic or international research. This invention addresses the technical problem of banana stalk compression and dehydration by providing a device that prevents entanglement and reduces drag. The invention primarily utilizes progressive roller compression and dehydration, along with a textured roller surface design to prevent banana stalk fibers from wrapping around the rollers. Combined with a residue-trapping structure at the outlet, this achieves high efficiency and high dehydration rate for whole-stalk pressing and dehydration, while also preventing fiber entanglement. This large-size, entanglement-resistant, drag-reducing banana stalk compression and dehydration device is designed for areas with high banana tree coverage in southern my country and is mainly used for whole-stalk dehydration of banana trees. The overall structure consists of a juice storage tank, a dehydration frame, an upper pressure roller group, a lower pressure roller group, a conveying structure, and a material conveying structure. It can directly press untreated banana stalks in farmland for easy transportation and is suitable for pressing raw materials with stalks (100mm-500mm) and lengths exceeding 1m.

[0005] The technical means employed in this invention are as follows:

[0006] A banana stalk whole-stalk extrusion and dehydration device for anti-tangling and drag reduction, characterized in that:

[0007] Furthermore, the banana stalk whole-stalk extrusion and dewatering device for preventing entanglement and reducing drag includes: a pressure roller structure, a dewatering frame, a reducer, a frequency converter, a motor, a transmission structure, a material conveying structure, and a slag removal structure;

[0008] Furthermore, the pressure roller structure is installed inside the dewatering machine frame;

[0009] Furthermore, the motor is connected to the transmission structure via a speed reducer and a frequency converter;

[0010] Furthermore, the transmission structure is connected to the pressure roller structure and the material conveying structure;

[0011] Furthermore, the material conveying structure is located on the feed side of the dewatering frame;

[0012] Furthermore, a slag-trapping structure is provided on the discharge side of the dewatering frame;

[0013] Furthermore, the motor is connected to the frequency converter, and the speed of the roller is adjusted by changing the frequency to achieve stepless speed regulation.

[0014] Furthermore, the pressure roller structure includes an upper pressure roller group and a lower pressure roller group; the pressure roller structure performs staged pressing of the banana stalks. The first three pairs of pressure rollers in the pressure roller structure mainly realize the conveying and preliminary pressing of the banana stalks, while the last pair of pressure rollers mainly realizes the dehydration function.

[0015] Furthermore, the lower pressure roller group consists of N lower pressure roller bodies, which are installed horizontally inside the dewatering machine frame;

[0016] Furthermore, the upper pressure roller group consists of N upper pressure roller bodies, the same number as the lower pressure roller bodies. The N upper pressure roller bodies are installed inside the dewatering frame and located above the lower pressure roller bodies. The upper pressure roller bodies and the lower pressure roller bodies are arranged one-to-one in a vertical arrangement.

[0017] Furthermore, the upper pressure roller group tilts downwards from the inlet side of the frame, forming an approximate angle with the lower pressure roller group;

[0018] Furthermore, the upper pressure rollers of the upper pressure roller assembly are connected by gear sets to form a linkage;

[0019] Furthermore, the various lower pressure rollers of the lower pressure roller assembly are connected by gear sets to form a linkage;

[0020] Furthermore, the gear set is formed by the upper roller shaft gear and the inter-roller reversing gear on the roller shaft being spaced apart and meshing with each other; the lower roller shaft gear and the inter-roller reversing gear on the roller shaft being spaced apart and meshing with each other.

[0021] Furthermore, both the upper and lower pressure roller groups are four-stage pressure roller structures. The diameters of the first three pressure rollers increase by 2mm in succession, with the pressure roller on the outlet side having the largest diameter, which is 8mm larger than the diameter of the third-stage pressure roller, in order to improve the slag discharge line speed.

[0022] Furthermore, two scraper frames are installed on the dewatering frame on the outlet side of the pressure roller structure, respectively mounted next to the pressure rollers on the outlet side of the upper and lower pressure roller groups.

[0023] Furthermore, the scraper holder is V-shaped with an angle of 55°;

[0024] Furthermore, one side of the scraper holder is welded to the discharge port of the dewatering machine frame, and the other side is equipped with a scraper that rests against the pressure roller.

[0025] Furthermore, the pressure rollers on the outlet side of the upper and lower pressure roller groups are provided with rectangular patterns with a thread angle of 36.55°, a depth of 2mm, a width of 2mm, a lead of s1500, and a number of 48 threads.

[0026] Furthermore, the transmission structure includes: a driving gear, a driven gear, a main transmission gear, a reversing gear, and a secondary transmission gear;

[0027] Furthermore, the main drive gear has a double-row tooth structure and is coaxially mounted with the driven gear on the roller shaft of the first lower pressure roller body on the outlet side of the dewatering frame; wherein the driven gear meshes with the driving gear assembled at the output end of the reducer; one row of teeth of the main drive gear meshes with the reversing gear on the roller shaft of the upper pressure roller body located above it, and the other row of teeth is connected to the slag removal mechanism through chain B;

[0028] Furthermore, the secondary drive gear meshes with the first inter-roller reversing gear on the inlet side of the dewatering frame and is installed on the outside of the dewatering frame. The other end of the roller shaft of the inter-roller reversing gear is equipped with a conveying sprocket. The conveying sprocket is installed on the inside of the dewatering frame and is connected to the conveying structure through chain A, driving the conveying structure to move synchronously.

[0029] Furthermore, the material conveying structure includes: a power conveying unit and a follow-up conveying unit;

[0030] Furthermore, the power conveying unit and the pressure roller structure are connected through a transmission structure to achieve synchronous movement; it includes: a conveying support, a lower conveying roller group, an upper conveying roller group, and a conveying sprocket; the lower conveying roller group is horizontally mounted on the conveying support, and its upper end face is on the same horizontal plane as the upper end face of the lower pressure roller group; the upper conveying roller group is mounted on the conveying support and is located above the lower conveying roller group; the upper conveying roller group descends from front to back, forming an asymptotic angle with the lower conveying roller group; the upper and lower conveying roller groups are equipped with conveying sprockets on the roller shafts near one end of the dewatering frame, and the conveying sprockets rotate the upper and lower conveying roller groups synchronously with the pressure roller structure through chain A;

[0031] Furthermore, the follow-up conveying unit is located in front of the power conveying unit and includes: a V-shaped bracket and rollers; the bottom ends of multiple rollers are hinged to the middle beam of the V-shaped bracket, and the top ends are hinged to the two horizontal beams on the upper part of the V-shaped bracket at intervals, so that the multiple rollers are arranged in a V-shape; the included angle of the V-shaped rollers is 90°, and the included angle is on the same plane as the upper end face of the lower conveying roller group, which facilitates the smooth conveying of the banana pole to the power conveying unit.

[0032] Furthermore, the slag-trapping structure includes: a slag-trapping bracket, a slag-removing roller assembly, a slag-trapping belt, and a slag-trapping sprocket;

[0033] Furthermore, the slag-dragging roller is assembled on the slag-dragging bracket, and a slag-dragging sprocket B is mounted on the other end of the roller shaft;

[0034] Furthermore, the slag sprocket A rotates synchronously with the pressure roller structure via chain B and main drive gear;

[0035] Furthermore, a slag-dragging belt is wound and assembled on the slag-dragging roller assembly. The surface of the slag-dragging belt is provided with pointed protrusions to trap the slag material, which is then dragged out by the pressure roller structure.

[0036] The working process of this invention is as follows:

[0037] After harvesting the bananas, the banana farmers first cut the banana stalks from the base, and then pull the entire banana stalk to the front of this device. Before operation, some preparatory work should be done. First, observe the diameter of the banana stem. If it is 130-250mm, the length is about 1-2.5m, and the weight is 20-40kg, adjust the gap of the last stage roller to 4-8mm. If the diameter of the banana stem is large and the weight is heavy, the gap should be adjusted to be larger to facilitate material discharge. Then, turn on the power, start the device, adjust the frequency converter frequency, and set the roller speed to 10-20 rpm. Place the sheath of the entire banana stem (small end, small diameter) on the follow-up conveying part of the conveying structure, allowing the sheath of the banana stem to enter the follow-up conveying part first. Then, the worker pushes the root of the banana stem (large end, large diameter) to place the entire banana stem on the follow-up conveying part. After the equipment is running stably, push the root of the banana stem to allow the sheath of the banana stem to enter the power conveying part of the conveying structure first for material conveying. Banana stalks enter the power conveying section and then the first-stage rollers of the dewatering frame's pressure roller structure. After passing through four stages of roller pressing, the banana stalks are pressed and dehydrated. The dehydrated juice flows into the lower banana stalk juice collection tank of the dewatering frame's pressure roller structure. The banana stalk residue is discharged from the gap between the fourth-stage rollers at the outlet of the pressure roller structure. The residue falls onto the equipment's sludge-carrying structure along with the lower pressure roller of the last stage roller, and is carried out of the device by a conveyor belt, completing the entire banana stalk dewatering process. After discharge, the next banana stalk can be added, and the entire banana stalk pressing process can be repeated, achieving continuous production. The obtained banana stalk residue has a significantly reduced water content and smaller volume, facilitating transportation and subsequent processing. Banana stalk juice is rich in nutrients and can be used to prepare functional beverages. After degumming using mechanical, chemical, and biological methods, banana stem residue can be used to obtain high-performance banana stem fiber. Banana stem fiber is a green and environmentally friendly natural textile raw material. When blended with cotton or other bast fibers, it can be used to make high-end clothing.

[0038] Working Principle: During banana stalk pressing, the motor's output shaft transmits power to the reducer, which then transmits power to the transmission gears. This reverse gear pair enables the upper and lower pressure rollers to rotate in opposite directions. The conveying system uses a transmission sprocket to transport the raw materials. When the conveying system feeds the banana stalks into the pressure roller group, the rollers press the stalks in stages. The first three pairs of rollers primarily convey and initially press the banana stalks, while the last pair primarily dehydrates them. Dehydration reduces the volume and mass of the banana stalks, significantly improving transport efficiency and reducing transportation costs.

[0039] Compared with the prior art, the present invention has the following advantages:

[0040] 1. The banana stalk whole-stalk extrusion and dewatering device provided by the present invention realizes the continuous pressing and dewatering operation of banana stalks through a four-stage roller structure with gradually increasing roller diameter and a slag-dragging structure, thereby achieving production automation.

[0041] 2. The banana stem whole-stalk extrusion and dewatering device for anti-entanglement and drag reduction provided by the present invention features a patterned design on the surface of the fourth-stage roller at the outlet of the pressure roller structure. This design facilitates both the feeding of banana stems and the discharge of banana stem residue, reducing the phenomenon of roller blockage and gear jamming caused by banana stem fibers entangled on the roller surface.

[0042] 3. The banana stem whole-stalk extrusion and dewatering device for anti-tangling and drag reduction provided by the present invention has a power conveying part and a follow-up conveying part designed to facilitate the banana stem whole-stalk entering the dewatering frame of the device, reducing the labor intensity of workers and facilitating material conveying and pre-pressing.

[0043] 4. The banana stem dewatering device for preventing entanglement and reducing drag provided by this invention has two scraper frames installed on the dewatering frame on the outlet side of the pressure roller structure, respectively mounted next to the pressure rollers on the outlet side of the upper and lower pressure roller groups. One side of the scraper frame is welded to the discharge port of the dewatering frame, and the other side is equipped with a scraper. The scraper rests against the pressure roller. When banana stem residue adheres to the roller surface, the scraper can scrape the banana stem residue off and onto the slag discharge conveyor belt. The slag is then carried out of the pressure roller mechanism by the slag discharge conveyor belt, completing the slag discharge.

[0044] In summary, the technical solution of this invention solves the problem in the prior art of not having dedicated equipment for whole-stalk roller dewatering of banana plants.

[0045] Based on the above reasons, this invention can be widely promoted in fields such as large-scale, high-moisture-content, fiber-rich agricultural straw waste pressing, dehydration, pretreatment, collection, storage, and transportation systems. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the structure of the present invention.

[0048] Figure 2 This is a schematic diagram of the driving gear and driven gear of the present invention, as well as the material conveying mechanism and dewatering frame structure of the device.

[0049] Figure 3 This is a schematic diagram of the chain drive of the power conveying section of the material conveying mechanism of the present invention.

[0050] Figure 4 This is a cross-sectional view of the pressure roller mechanism of the present invention.

[0051] Figure 5 This is a schematic diagram of the gear transmission mechanism of the upper and lower pressure roller groups of the present invention.

[0052] Figure 6 This is a schematic diagram of the main drive gear and the reversing gear of the present invention.

[0053] Figure 7 This is a schematic diagram of the chain drive of the material conveying mechanism of the present invention.

[0054] Figure 8 This is a schematic diagram of the chain drive structure of the slag discharge mechanism of the present invention.

[0055] Figure 9 This is a schematic diagram of the surface pattern of the last stage roller in this invention.

[0056] Figure 10 For the present invention Figure 9 A schematic diagram of NN.

[0057] Figure 11 This is a schematic diagram of the power mechanism and slag discharge mechanism of the present invention.

[0058] In the diagram: 1. Roller; 2. V-shaped support; 3. Lower conveyor roller group; 4. Upper conveyor roller group; 6. Dewatering frame; 10. Upper pressure roller body; 13. Lower roller shaft gear; 14. Upper roller shaft gear; 15. Conveying support; 16. Scraper frame; 17. Scraper; 18. Slag removal roller group; 19. Slag dragging belt; 20. Slag dragging support; 21. Reducer; 22. Motor; 23. Upper pressure roller group; 24. Lower pressure roller group; 26. Drive gear; 27. Driven gear; 28. Main drive gear; 29. ​​Reversing gear; 31. Secondary drive gear; 32. Conveying sprocket; 33. Chain A; 34. Slag dragging sprocket A; 35. Chain B; 36. Slag dragging sprocket B; 37. Slag dragging structure; 38. Inter-roller reversing gear. Detailed Implementation

[0059] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0062] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0063] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0064] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0065] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0066] As shown in the figure, the present invention provides a banana stalk whole-stalk extrusion dewatering device for anti-entanglement and drag reduction; including: a pressure roller structure, a dewatering frame 6, a reducer 21, a motor 22, a transmission structure, a material conveying structure, and a slag-trapping structure 37; the pressure roller structure is installed inside the dewatering frame 6; the motor 22 is connected to the transmission structure through the reducer 21 and a frequency converter; the transmission structure is connected to the pressure roller structure and the material conveying structure; the material conveying structure is set on the feed side of the dewatering frame 6; the slag-trapping structure 37 is set on the discharge side of the dewatering frame 6; the motor 22 is connected to the frequency converter, and the rotational speed of the roller is adjusted by changing the frequency.

[0067] The pressure roller structure includes an upper pressure roller group 23 and a lower pressure roller group 24. The lower pressure roller group 24 consists of N lower pressure roller bodies, which are horizontally installed inside the dewatering frame 6. The upper pressure roller group 23 consists of N upper pressure roller bodies, the same number as the lower pressure roller bodies, which are installed inside the dewatering frame 6 and located above the lower pressure roller bodies. The upper and lower pressure roller bodies are arranged vertically in a one-to-one correspondence. The upper pressure roller group 23 slopes downward from the inlet side of the frame 6, forming an approximate angle with the lower pressure roller group 24. The upper pressure roller bodies of the upper pressure roller group 23 are connected by a gear set to form a linkage. The lower pressure roller bodies of the lower pressure roller group 24 are connected by a gear set to form a linkage. The gear set consists of an upper roller shaft gear 14 on the roller shaft and a roller reversing gear, which are spaced apart and mesh with each other. The lower roller shaft gear 13 on the roller shaft and the roller reversing gear are spaced apart and mesh with each other.

[0068] Both the upper pressure roller group 23 and the lower pressure roller group 24 are four-stage pressure roller structures. The diameter of the first three pressure rollers increases by 2mm in succession. The diameter of the pressure roller on the outlet side is the largest, which is 8mm larger than that of the third-stage pressure roller, in order to improve the slag discharge line speed.

[0069] Two scraper holders 16 are installed on the dewatering frame 6 on the outlet side of the pressure roller structure, respectively installed next to the pressure rollers on the outlet side of the upper pressure roller group 23 and the lower pressure roller group 24; the scraper holder 16 is V-shaped with an angle of 55°; one side of the scraper holder 16 is welded to the discharge port of the dewatering frame 6, and the other side is equipped with a scraper 17, which rests against the pressure roller;

[0070] The pressure rollers on the outlet side of the upper pressure roller group 23 and the lower pressure roller group 24 are provided with rectangular patterns with a thread angle of 36.55°, a depth of 2mm, a width of 2mm, a lead of s1500, and a number of 48 threads.

[0071] The transmission structure includes: a driving gear 26, a driven gear 27, a main drive gear 28, a reversing gear 29, and a secondary drive gear 31. The main drive gear 28 has a double-row tooth structure and is coaxially mounted with the driven gear 27 on the roller shaft of the first lower pressure roller on the outlet side of the dewatering frame 6. The driven gear 27 meshes with the driving gear 26 mounted on the output end of the reducer 21. One row of teeth of the main drive gear 28 meshes with the reversing gear 29 on the roller shaft of the upper pressure roller 10 located above it, and the other row of teeth is connected to the slag removal mechanism 37 through a chain B35. The secondary drive gear 31 is mounted on the roller shaft of the first inter-roller reversing gear 38 on the inlet side of the dewatering frame 6. The other end of the roller shaft of the inter-roller reversing gear 38 is equipped with a conveying sprocket 32, which is connected to the conveying structure through a chain A33, driving the conveying structure to move synchronously.

[0072] The material conveying structure includes a powered conveying unit and a follower conveying unit; the powered conveying unit is connected to the pressure roller structure through a transmission structure to achieve synchronous movement; it includes a conveying support 15, a lower conveying roller group 3, an upper conveying roller group 4, and a conveying sprocket 32; the lower conveying roller group 3 is horizontally mounted on the conveying support 15, and its upper end face is on the same horizontal plane as the upper end face of the lower pressure roller group 24; the upper conveying roller group 4 is mounted on the conveying support 15 and is located above the lower conveying roller group 3; the upper conveying roller group 4 descends from front to back, forming an asymptotic angle with the lower conveying roller group 3; the upper conveying roller group 4 and the lower conveying roller group 3 are located near the end of the dewatering frame 6. A conveying sprocket 32 ​​is mounted on the other end of the roller shaft of the roller reversing gear 38. The conveying sprocket 32 ​​rotates the upper conveying roller group 4 and the lower conveying roller group 3 synchronously with the pressure roller structure through the chain A33. The follow-up conveying part is set in front of the power conveying part and includes: V-shaped bracket 2 and roller 1. The bottom ends of multiple rollers 1 are hinged to the middle beam of the V-shaped bracket 2, and the top ends are hinged to the two horizontal beams on the upper part of the V-shaped bracket 2 at intervals, so that multiple rollers 1 are arranged in a V-shape. The included angle of the V-shaped rollers 1 is 90°, and the included angle is on the same plane as the upper end surface of the lower conveying roller group 3, which facilitates the smooth conveying of the banana pole to the power conveying part.

[0073] The slag-dragging structure 37 includes: a slag-dragging bracket 20, a slag-removing roller group 18, a slag-dragging belt 19, and a slag-dragging sprocket 34; the slag-dragging roller is assembled on the slag-dragging bracket 20, and a slag-dragging sprocket B36 is assembled on the other end of the roller shaft; the slag-dragging sprocket A34 is connected to the main drive gear 28 via a chain B35 and rotates synchronously with the pressure roller structure; the slag-dragging roller group 18 is wound with the slag-dragging belt 19, and the surface of the slag-dragging belt 19 is provided with pointed protrusions, which are used to trap the slag material and then drag the slag out from the pressure roller structure.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A whole-stalk extrusion and dehydration device for banana stems that prevents tangling and reduces drag, characterized in that: The banana stalk whole stalk extrusion dewatering device for anti-tangling and drag reduction includes: a pressure roller structure, a dewatering frame (6), a reducer (21), a frequency converter, a motor (22), a transmission structure, a material conveying structure and a slag removal structure (37). The pressure roller structure is installed inside the dewatering machine frame (6); The motor (22) is connected to the transmission structure via a reducer (21) and a frequency converter; The aforementioned transmission structure is connected to the pressure roller structure and the material conveying structure; The material conveying structure is located on the feed side of the dewatering frame (6); The discharge side of the dewatering frame (6) is provided with a slag dragging structure (37). The motor (22) is connected to the frequency converter, and the rotational speed of the roller is adjusted by changing the frequency; The pressure roller structure includes: an upper pressure roller group (23) and a lower pressure roller group (24); both are four-stage pressure roller structures, with the diameter of the first three pressure rollers increasing by 2mm in succession, and the pressure roller on the outlet side having the largest diameter, which is 8mm larger than the diameter of the third-stage pressure roller; The upper pressure roller group (23) and the lower pressure roller group (24) are provided with rectangular patterns on the pressure rollers on the outlet side with a thread angle of 36.55°, a depth of 2mm, a width of 2mm, a lead of s1500, and a number of heads of 48. The slag dragging structure (37) includes a slag dragging belt (19) with pointed protrusions on its surface, which are used to trap the slag material and then drag it out through the pressure roller structure.

2. The banana stalk whole-stalk extrusion and dehydration device for anti-tangling and drag reduction according to claim 1, characterized in that: The material conveying structure includes: a power conveying unit and a follower conveying unit; The following conveying unit is located at the front of the power conveying unit and includes: a V-shaped bracket (2) and rollers (1); the rollers (1) are arranged in a V-shape with an included angle of 90°, which is used to guide the banana stalks smoothly into the power conveying unit.

3. The banana stalk whole-stalk extrusion and dehydration device for anti-tangling and drag reduction according to claim 1, characterized in that: Two scraper frames (16) are provided on the dewatering frame (6) on the outlet side of the pressure roller structure, respectively installed next to the pressure rollers on the outlet side of the upper pressure roller group (23) and the lower pressure roller group (24); The scraper holder (16) is V-shaped with an angle of 55°.

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