Improved biomass raw material conveying device

Abstract

The utility model discloses an improved biomass raw material conveying device. Relates to the technical field of biomass energy gas supply, carbon production, heat supply and power generation. Comprising a supporting table, the supporting table is provided with an inclined sliding way, the top end of one side of the supporting table corresponds to a feeding port, and the bottom end of the other side corresponds to a discharging port; the conveying plate is obliquely arranged and slidably connected to the inclined sliding way of the supporting table, a plurality of sawteeth arranged at intervals are fixed to the top face of the conveying plate, the faces, close to the discharging port, of the sawteeth are vertical faces, the vertical faces are perpendicular to the top face of the conveying plate, and the faces, away from the discharging port, of the sawteeth are inclined faces; the conveying plate can be driven by the driving mechanism to do reciprocating motion, so that raw materials are conveyed to the discharging port from the feeding port, thrust is formed during forward motion of the vertical face of the sawtooth structure, material returning resistance is reduced during reverse motion of the inclined face, and the reciprocating motion of the driving mechanism is combined, so that the material conveying efficiency is remarkably improved; the problem that in a traditional device, the conveying efficiency is low due to material slipping and backflow is solved.

Description

Technical Field

[0001] This utility model relates to the fields of biomass energy gas supply, charcoal production, heating, and power generation, and more specifically to a conveying device for transporting and storing block, flake, granular, and powdered biomass raw materials. Background Technology

[0002] Traditional biomass feedstock conveying devices mostly use smooth-surfaced conveyor plates, relying on friction to propel the material towards the discharge port. However, biomass feedstocks are diverse and have fluctuating moisture content. When the feedstock dries, the surface friction decreases significantly, causing frequent slippage between the conveyor plate and the material, resulting in a sharp drop in conveying efficiency.

[0003] Furthermore, in traditional devices, during the retraction of the conveyor plate, material tends to move in the opposite direction with the plate, causing backflow. This requires frequent manual cleaning, increasing maintenance costs. While existing technologies have attempted to improve performance by increasing surface roughness or using hydraulic drives, they have failed to effectively balance the coordinated control of friction and backflow, and are also complex in structure and have high energy consumption.

[0004] Therefore, how to provide a biomass feedstock conveying device that can simultaneously solve the problems of slippage and backflow, has a simple structure, and is highly adaptable is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides an improved biomass raw material conveying device, which aims to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An improved biomass feedstock conveying device includes:

[0008] A support platform having an inclined slide, with the top of one side of the support platform corresponding to the feed inlet and the bottom of the other side corresponding to the discharge outlet;

[0009] A conveyor plate is arranged at an inclination and slidably connected to the inclined slide rail of the support platform. The top surface of the conveyor plate is fixed with a plurality of spaced saw teeth. The side of the saw teeth near the discharge port is a vertical surface, which is perpendicular to the top surface of the conveyor plate. The side of the saw teeth away from the discharge port is an inclined surface. The conveyor plate can reciprocate under the drive of the drive mechanism, so that the raw material is conveyed from the feed port to the discharge port.

[0010] Through the above technical solution, this utility model provides an improved biomass raw material conveying device. The vertical surface of the sawtooth structure generates thrust during forward movement, while the inclined surface reduces the material backflow resistance during reverse movement. Combined with the reciprocating motion of the drive mechanism, it significantly improves the material conveying efficiency and solves the problem of low conveying efficiency caused by material slippage and backflow in traditional devices. This utility model achieves efficient material conveying through the synergistic effect of the sawtooth design (vertical surface + inclined surface) and reciprocating motion.

[0011] Preferably, in the above-described improved biomass raw material conveying device, a transition plane section is provided between the vertical plane and the inclined plane. The transition plane section between the vertical plane and the inclined plane smoothly facilitates the transfer of force on the material, preventing material from getting stuck or experiencing stress concentration at the edge of the sawtooth, thus improving conveying stability. The transition plane section also optimizes the mechanical distribution of the sawtooth structure, reducing mechanical wear.

[0012] Preferably, in the above-mentioned improved biomass raw material conveying device, the height of the vertical plane is 1 cm; the width of the transition plane section is 5 mm; and the angle between the inclined plane and the top surface of the conveying plate is 30°. By specifically specifying the height of the vertical plane, the width of the transition plane section, and the angle of the inclined plane, the thrust and anti-backflow effects are enhanced through parameter optimization, adapting to the physical properties of different materials; the conveying effect can be optimized, ensuring that the raw material can pass smoothly through the sawtooth structure during the conveying process and avoiding jamming; the precise size and angle design can improve the conveying efficiency, reduce the residence time of the raw material during the conveying process, increase the overall conveying speed, and improve the versatility and reliability of the device.

[0013] Preferably, in the above-described improved biomass feedstock conveying device, the spacing between two adjacent saw teeth is greater than the minimum size of the feedstock. This prevents debris or small particles from filling the tooth gaps, reducing the risk of equipment blockage and decreasing maintenance frequency; the spacing design also addresses debris management issues and extends equipment lifespan.

[0014] Preferably, in the above-mentioned improved biomass raw material conveying device, there are multiple conveying plates arranged side by side on the inclined slide, with adjacent conveying plates abutting against each other; the driving mechanism provides power to the multiple conveying plates. The side-by-side arrangement of multiple conveying plates, through staged retraction control (e.g., retracting two plates at a time), reduces frictional resistance with the material and improves continuous conveying efficiency; the staged motion logic optimizes energy consumption and avoids resistance superposition during synchronous retraction.

[0015] Preferably, in the improved biomass raw material conveying device described above, the drive mechanism includes a drive motor, a reducer, and a crank-connecting rod assembly. The drive motor is mounted below the support platform, and the power input shaft of the reducer is fixedly connected to the power output shaft of the drive motor. The crank-connecting rod assembly includes a crank disc, a crank pin, and a connecting rod. The crank disc is fixedly connected to the power output shaft of the reducer, and the crank pin is eccentrically fixed to the crank disc. One end of the connecting rod is hinged to the crank pin via a bearing, and the other end is hinged to the bottom wall of the conveying plate. The hinged design of the crank transmission assembly (crank disc + crank pin + connecting rod) converts rotary motion into linear reciprocating motion, resulting in a compact structure and stable power transmission. Through the cooperation of the reducer and the crank-connecting rod assembly, efficient power transmission can be achieved, improving conveying efficiency while reducing energy consumption.

[0016] Preferably, in the above-mentioned improved biomass raw material conveying device, a protective steel plate covers the top of the conveying plate, and a protective liner is provided on the bottom wall of the conveying plate near the discharge port. The protective steel plate covers the highest point of the conveying plate, and the protective liner is located at the bottom of the discharge port to prevent material from falling into the gaps of the device and to avoid jamming and mechanical failure.

[0017] As can be seen from the above technical solution, compared with the prior art, this utility model discloses an improved biomass raw material conveying device, which has the following beneficial effects:

[0018] 1. This utility model directly transmits driving force through the vertical surface of the sawtooth, avoiding reliance on friction, significantly reducing slippage and improving conveying efficiency; the inclined surface decomposes the reverse force into horizontal and vertical components, reducing backflow resistance and lifting the material, blocking the backflow path, and achieving efficient material conveying.

[0019] 2. This utility model adopts a crank connecting rod assembly and a reducer drive mechanism, which has a compact structure, occupies little space, and is easy to integrate and install.

[0020] 3. The transition plane between the vertical and inclined planes of this utility model enables the raw materials to transition more smoothly during the conveying process, reducing jumping and collisions and improving the stability of the conveying. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1The attached figure is an isometric view of the improved biomass feedstock conveying device provided by this utility model;

[0023] Figure 2 The attached image is... Figure 1 Enlarged view of section A in the attached figure;

[0024] Figure 3 The attached figure is a bottom view of the improved biomass feedstock conveying device provided by this utility model;

[0025] Figure 4 The attached figure is a top view of the improved biomass feedstock conveying device provided by this utility model;

[0026] Figure 5 The attached figure is a front view of the improved biomass feedstock conveying device provided by this utility model;

[0027] Figure 6 The attached image is... Figure 5 Enlarged view of section B in the attached figure;

[0028] Figure 7 The attached image is... Figure 5 Enlarged view of section C in the attached figure.

[0029] in:

[0030] 1-Support platform; 11-Inclined slide; 12-Discharge port; 2-Conveying plate; 3-Sawtooth; 31-Vertical surface; 32-Inclined surface; 33-Transition plane section; 4-Drive mechanism; 41-Drive motor; 42-Reducer; 43-Crank and connecting rod assembly; 431-Crank disc; 432-Crank pin; 433-Connecting rod; 5-Protective steel plate; 6-Protective liner. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] See appendix Figure 1 To be continued Figure 7 This utility model discloses an improved biomass raw material conveying device, comprising:

[0033] Support platform 1, the support platform 1 has an inclined slide 11, the top of one side of the support platform 1 corresponds to the feed port, and the bottom of the other side corresponds to the discharge port 12;

[0034] The conveyor plate 2 is arranged at an angle and slidably connected to the inclined slide rail 11 of the support platform 1. The top surface of the conveyor plate 2 is fixed with a plurality of spaced saw teeth 3. The side of the saw teeth 3 near the discharge port is a vertical surface 31, which is perpendicular to the top surface of the conveyor plate 2. The side of the saw teeth 3 away from the discharge port 12 is an inclined surface 32. The conveyor plate 2 can reciprocate under the drive of the drive mechanism 4, so that the raw material is conveyed from the feed port to the discharge port 12.

[0035] To further optimize the above technical solution, during the process of the conveyor plate 3 pushing the raw material forward, the vertical surface 31 of the saw teeth 3 can generate a pushing force on the raw material. During the process of the conveyor plate 2 retracting, the inclined surface 32 can reduce the pressure of the conveyor plate on the raw material. The inclined surface 32 squeezes the raw material upward, preventing the raw material from moving backward with the conveyor plate 2.

[0036] To further optimize the above technical solution, the power provided by the drive mechanism 4 is transmitted to the conveyor plate 2 through the crank-connecting rod assembly 43. The vertical surface 31 concentrates the driving force into a horizontal thrust, pushing the raw material towards the discharge port. The vertical surface 31 increases the contact area with the raw material, significantly improving static friction and preventing the raw material from slipping. The thrust and static friction work together, both pointing towards the discharge port 12, causing the raw material to move faster. When the conveyor plate 2 retracts, the inclination angle (30°) of the inclined surface 32 decomposes the reverse pulling force into horizontal and vertical components. The design of the inclined surface 32 reduces the contact pressure between the raw material and the conveyor plate 2, thereby reducing dynamic friction. When the drive mechanism 4 applies a reverse force, the inclined surface 32 squeezes the raw material upward, preventing the raw material from moving backward with the conveyor plate 2.

[0037] To further optimize the above technical solution, the saw teeth 3 are mainly designed in the middle of the conveyor plate 2, and no saw teeth are arranged about 300mm away from the discharge port, so that the raw materials can slide down naturally during the reciprocating motion of the conveyor plate 2.

[0038] To further optimize the above technical solution, a transition plane segment 33 is provided between the vertical plane 31 and the inclined plane 32.

[0039] To further optimize the above technical solution, the height of the vertical plane 31 is 1cm; the width of the transition plane section 33 is 5mm; and the angle between the inclined plane 32 and the top surface of the conveyor plate 2 is 30°.

[0040] To further optimize the above technical solution, the spacing between two adjacent saw teeth 3 is greater than the minimum size of the raw material.

[0041] To further optimize the above technical solution, the distance between the two saw teeth 3 is 2cm. The size of conventional biomass raw materials is 3-10cm. The smaller saw tooth gap can prevent the gap from being filled with raw material debris, thus avoiding frequent equipment cleaning.

[0042] To further optimize the above technical solution, there are multiple conveyor plates 2, which are arranged side by side on the inclined slide 11, and adjacent conveyor plates 2 abut against each other; the drive mechanism 4 provides power to the multiple conveyor plates 2.

[0043] To further optimize the above technical solution, the drive mechanism 4 includes a drive motor 41, a reducer 42, and a crank-connecting rod assembly 43. The drive motor 41 is installed below the support platform 1. The power input shaft of the reducer 42 is fixedly connected to the power output shaft of the drive motor 41. The crank-connecting rod assembly 43 includes a crank disc 431, a crank pin 432, and a connecting rod 433. The crank disc 431 is fixedly connected to the power output shaft of the reducer 42. The crank pin 432 is eccentrically fixed on the crank disc 431. One end of the connecting rod 433 is hinged to the crank pin 432 through a bearing, and the other end is hinged to the bottom wall of the conveyor plate 2.

[0044] To further optimize the above technical solution, in this embodiment, the number of conveyor plates 2 is four, and the drive motor 41 and reducer 42 are used as a whole as the drive unit. There are two sets of drive units, which are symmetrically arranged below the support platform 1. Each set of drive units drives two crank-connecting rod assemblies, such as... Figure 3-4 As shown, viewed from top to bottom, one set of drive units drives the first and third conveyor plates 2; the other set of drive units drives the second and fourth conveyor plates 2.

[0045] To further optimize the above technical solution, the drive motor is electrically connected to the output terminal of the frequency converter via a cable. The frequency converter is electrically connected to the control system, which can adjust the speed or frequency of the drive motor as needed through the control system.

[0046] To further optimize the above technical solution, the running distance of the conveyor plate 2 is designed to be 300mm. If the stroke time is designed to be no less than 1s, that is, the crank rotates at a maximum of 30 revolutions per minute, the reducer is selected according to a 50:1 ratio. At the same time, the operating frequency of the motor can be reduced by the control system, thereby controlling the running speed of the conveyor plate 2 to match the speed required by the system for raw materials. When the crank rotates 180°, the conveyor plate 2 moves from the farthest end to the nearest end. When the crank rotates 360°, the conveyor plate 2 reciprocates for one revolution. Therefore, when the conveyor plate 2 moves from the nearest end to the farthest end by 300mm in 1s, the crank rotates 30 revolutions per minute.

[0047] To further optimize the above technical solution, a protective steel plate 5 is covered on the top of the conveyor plate 2, and a protective liner 6 is provided on the bottom wall of the conveyor plate 2 near the discharge port 12.

[0048] The embodiments of this utility model are as follows:

[0049] After receiving the start command from the control system, the drive motor 41 starts running. After being reduced in speed by the reducer 42, the crank-connecting rod assembly 43 controls the reciprocating motion of the conveyor plate 2. When moving forward, it pushes the raw material toward the discharge port 12. When moving in reverse, the inclined surface 32 on the back of the saw teeth 3 can squeeze the raw material upward, preventing the raw material from moving backward with the conveyor plate 2.

[0050] In this embodiment, four conveyor plates 2 are designed, and each conveyor plate 2 is equipped with a crank-connecting rod assembly 43. The movement pattern of the four conveyor plates 2 is as follows: When moving towards the discharge port 12, the four conveyor plates 2 advance together to convey the raw material to the discharge port 12. When retracting, the first and third conveyor plates 2 retract first. When they reach the limit, the second and fourth conveyor plates 2 retract. When all four plates have retracted to the limit, they move forward simultaneously. That is, only two plates retract at a time during the retraction process, reducing the friction with the raw material. When retracting, only two conveyor plates 2 move in opposite directions at a time, reducing the number of moving plates in contact with the raw material, thereby reducing the total dynamic friction generated at the same time. The phased retraction avoids all conveyor plates 2 applying reverse pressure at the same time, reducing the resistance concentration caused by local raw material accumulation. Therefore, the design of phased retraction of two conveyor plates 2, by limiting the number of conveyor plates 2 moving at the same time, utilizing the difference between static and dynamic friction, and optimizing the pressure distribution, effectively reduces the total friction with the raw material, improves the conveying efficiency and equipment reliability.

[0051] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0052] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An improved biomass feedstock delivery apparatus, characterized by, include: Support platform (1), the support platform (1) has an inclined slide (11), the top of one side of the support platform (1) corresponds to the feed port, and the bottom of the other side corresponds to the discharge port (12); The conveyor plate (2) is arranged at an inclination and slidably connected to the inclined slide (11) of the support platform (1). The top surface of the conveyor plate (2) is fixed with a plurality of spaced saw teeth (3). The side of the saw teeth (3) near the discharge port is a vertical surface (31), which is perpendicular to the top surface of the conveyor plate (2). The side of the saw teeth (3) away from the discharge port (12) is an inclined surface (32). The conveyor plate (2) can reciprocate under the drive of the drive mechanism (4), so that the raw material is conveyed from the feed port to the discharge port (12).

2. An improved biomass feedstock delivery apparatus as claimed in claim 1, wherein, There is a transition plane segment (33) between the vertical plane (31) and the inclined plane (32).

3. An improved biomass feedstock delivery apparatus as claimed in claim 2, wherein, The height of the vertical plane (31) is 1 cm; the width of the transition plane section (33) is 5 mm; the angle between the inclined plane (32) and the top surface of the conveyor plate (2) is 30°.

4. The improved biomass feedstock delivery apparatus of claim 1, wherein, The distance between two adjacent saw teeth (3) is greater than the minimum size of the raw material.

5. The improved biomass feedstock delivery apparatus of claim 1, wherein, There are multiple conveyor plates (2), which are arranged side by side on the inclined slide (11) and adjacent conveyor plates (2) abut against each other; the drive mechanism (4) provides power to the multiple conveyor plates (2).

6. An improved biomass feedstock delivery apparatus as claimed in claim 1, wherein, The drive mechanism (4) includes a drive motor (41), a reducer (42), and a crank-connecting rod assembly (43). The drive motor (41) is installed below the support platform (1). The power input shaft of the reducer (42) is fixedly connected to the power output shaft of the drive motor (41). The crank-connecting rod assembly (43) includes a crank disc (431), a crank pin (432), and a connecting rod (433). The crank disc (431) is fixedly connected to the power output shaft of the reducer (42). The crank pin (432) is eccentrically fixed on the crank disc (431). One end of the connecting rod (433) is hinged to the crank pin (432) through a bearing, and the other end is hinged to the bottom wall of the conveyor plate (2).

7. An improved biomass feedstock delivery apparatus as claimed in claim 1, wherein, The top of the conveyor plate (2) is covered with a protective steel plate (5), and the bottom wall of the conveyor plate (2) near the discharge port (12) has a protective liner (6).

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