Biomass wood chip spiral pre-compression feeding device

Abstract

This utility model belongs to the technical field of feeding devices and discloses a spiral pre-compression feeding device for biomass wood chips. It includes a base frame, with feeding mechanisms fixedly mounted on both sides of the inner surface of the base frame. Two discharging mechanisms are fixedly mounted on the upper end of the feeding mechanisms. Each feeding mechanism includes a housing, with a feeding cylinder fixedly mounted inside. An outlet is opened on one side of the feeding cylinder, and a feeding motor is mounted on one side of the feeding cylinder. A feeding rod is fixedly mounted on the output end of the feeding motor. Multiple conveying blades are mounted on the outer surface of the feeding rod, and multiple feeding blades are fixedly mounted on the outer surface of the feeding rod. The discharging mechanism includes a discharging shell, with a discharging port opened at the lower end of the discharging shell. This utility model, through the feeding mechanism, can stably convey wood chips to the outlet, and through the discharging mechanism, the annularly distributed scrapers and discharging blades can effectively discharge the wood chips, jointly ensuring efficient and stable wood chip feeding and discharging.

Description

Technical Field

[0001] This utility model belongs to the technical field of feeding devices, specifically a spiral pre-compression feeding device for biomass wood chips. Background Technology

[0002] The biomass sawdust spiral pre-compression feeding device is suitable for various biomass energy processing scenarios. For example, in biomass power plants, it can efficiently and stably transport biomass raw materials such as sawdust to the combustion equipment to ensure continuous energy supply; on biomass pellet fuel production lines, it can precisely control the sawdust feeding amount and feeding rhythm to help pellet formation; in biomass carbonization processing sites, it can provide uniform and stable feeding, providing good conditions for the carbonization process and meeting the raw material feeding needs of biomass processing enterprises of different scales and process requirements.

[0003] However, the following problems were found in the implementation of the relevant technologies:

[0004] In existing biomass sawdust processing technologies, the feeding stage often faces the problem of unstable sawdust conveying. Most feeding methods are prone to blockages and uneven conveying, which leads to the inability to continuously and stably carry out subsequent processing steps, affecting overall production efficiency. The unloading stage also has shortcomings. Some unloading devices do not discharge smoothly, and sawdust tends to accumulate at the unloading port, causing feeding interruptions. Moreover, the unloading amount is difficult to control precisely, resulting in large fluctuations in the amount of sawdust entering the next processing stage, affecting product quality. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a spiral pre-compression feeding device for biomass wood chips, which offers advantages in stable conveying and efficient feeding. The feeding mechanism stably conveys wood chips to the outlet, while the feeding mechanism, with its annularly distributed scrapers and blades, effectively feeds the chips, ensuring efficient and stable wood chip feeding and feeding.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spiral pre-compression feeding device for biomass wood chips, including a base frame, with feeding mechanisms fixedly provided on both sides of the inner surface of the base frame, and two discharging mechanisms fixedly provided at the upper end of the feeding mechanisms. The feeding mechanism includes a housing, with a feeding cylinder fixedly provided inside the housing, a discharge port opened on one side of the feeding cylinder, a feeding motor provided on one side of the feeding cylinder, a feeding rod fixedly provided at the output end of the feeding motor, and multiple conveying blades provided on the outer surface of the feeding rod. Multiple feeding blades are also fixedly provided on the outer surface of the feeding rod.

[0007] Preferably, the feeding mechanism includes a feeding shell, a feeding port is provided at the lower end of the feeding shell, a mounting frame is fixedly provided at the upper end of the feeding shell, a feeding motor is provided at the upper end of the mounting frame, a feeding rod is fixedly provided at the output end of the feeding motor, a plurality of scrapers are fixedly provided on the outer surface of the feeding rod, and a feeding blade is fixedly provided on the outer surface of the feeding rod.

[0008] Preferably, five ventilation slots are provided on both sides of the box, and the five ventilation slots are distributed at equal intervals on both sides of the box.

[0009] Preferably, there are three conveying blades and two feeding blades, with the three conveying blades and two feeding blades alternately distributed on the outer surface of the feeding rod.

[0010] Preferably, a feeding support frame is fixedly provided at the lower end of the feeding motor, and the lower end of the feeding support frame is fixedly connected to the lower inner wall of the box.

[0011] Preferably, the outer surfaces of the housing and the feed cylinder are provided with two feeding slots, which are respectively used in conjunction with two feeding mechanisms.

[0012] Preferably, there are twelve scrapers, and six scrapers are arranged in a ring on the outer surface of the two feed rods.

[0013] Preferably, each of the two feeding motors is fixedly provided with a feeding support frame at its upper end, and the lower ends of the two feeding support frames are respectively fixedly connected to the upper ends of the two mounting frames.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model uses a feeding mechanism, in which a feeding motor drives a feeding rod, and the conveying blades and feeding blades alternately distributed on the rod, to stably convey wood chips to the discharge port.

[0016] 2. This utility model uses a feeding mechanism, with a feeding motor driving a feeding rod. The scrapers and feeding blades distributed in a ring on the rod can effectively feed the wood chips, thus ensuring efficient and stable feeding and feeding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of part of the structure of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the feeding mechanism of this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the feeding mechanism of this utility model.

[0021] In the diagram: 1. Base frame; 2. Feeding mechanism; 3. Discharging mechanism; 4. Ventilation slot; 20. Housing; 21. Feeding cylinder; 22. Feeding rod; 23. Discharge port; 24. Conveying blade; 25. Feeding blade; 26. Feeding support frame; 27. Feeding motor; 28. Discharging trough; 30. Discharging shell; 31. Mounting frame; 32. Discharging support frame; 33. Discharging motor; 34. Discharging rod; 35. Scraper; 36. Discharging port; 37. Discharging blade. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 4 As shown, this utility model provides a spiral pre-compression feeding device for biomass wood chips, including a base frame 1. A feeding mechanism 2 is fixedly mounted on both sides of the inner surface of the base frame 1. Two discharging mechanisms 3 are fixedly mounted on the upper end of the feeding mechanism 2. The feeding mechanism 2 includes a housing 20, inside which a feeding cylinder 21 is fixedly mounted. An outlet 23 is opened on one side of the feeding cylinder 21. A feeding motor 27 is mounted on one side of the feeding cylinder 21. A feeding rod 22 is fixedly mounted at the output end of the feeding motor 27. Multiple conveying blades 24 and multiple feeding blades 25 are fixedly mounted on the outer surface of the feeding rod 22. When the feeding motor 27 is started, its output end drives the feeding rod 22 to rotate. Because three conveying blades 24 and two feeding blades 25 are alternately distributed on the feeding rod 22, during rotation, the conveying blades 24 and feeding blades 25 push the biomass wood chips in the feeding cylinder 21 inside the housing 20. As the feed rod 22 rotates, the wood chips gradually move along the feed cylinder 21 toward the discharge port 23 on one side, and are finally discharged through the discharge port 23, completing the feeding process.

[0024] Specifically, the feeding mechanism 3 includes a feeding shell 30, a feeding port 36 is provided at the lower end of the feeding shell 30, a mounting frame 31 is fixedly provided at the upper end of the feeding shell 30, a feeding motor 33 is provided at the upper end of the mounting frame 31, a feeding rod 34 is fixedly provided at the output end of the feeding motor 33, a plurality of scrapers 35 are fixedly provided on the outer surface of the feeding rod 34, and a feeding blade 37 is fixedly provided on the outer surface of the feeding rod 34.

[0025] Furthermore, the five ventilation slots 4 evenly spaced on both sides of the housing 20 promote air circulation during the feeding process. Biomass sawdust may generate a certain amount of heat and moisture during feeding and storage. The ventilation slots 4 can promptly remove this heat and moisture, preventing the sawdust from deteriorating and clumping due to heat and humidity, ensuring the quality and flowability of the sawdust, and facilitating subsequent processing.

[0026] Furthermore, the three conveying blades 24 and two feeding blades 25 are alternately distributed on the outer surface of the feeding rod 22. This design allows the wood chips to receive a more uniform pushing force during the feeding process. The alternately distributed blades can act on the wood chips from different angles and positions, reducing the accumulation and dead zones of wood chips in the feeding cylinder 21, allowing the wood chips to move more stably and smoothly along the feeding cylinder 21 towards the discharge port 23, thereby improving feeding efficiency and stability.

[0027] It is worth noting that the feeding support frame 26 is fixed to the lower end of the feeding motor 27, and its lower end is fixedly connected to the lower inner wall of the housing 20, providing stable support for the feeding motor 27. When the feeding motor 27 vibrates during operation, the feeding support frame 26 can effectively reduce the impact of vibration on the motor, ensuring the smooth operation of the feeding motor 27, thereby ensuring the stable rotation of the feeding rod 22 and improving the reliability and service life of the entire feeding mechanism 2.

[0028] It is worth noting that the two feeding troughs 28, which are jointly formed on the outer surfaces of the housing 20 and the feeding cylinder 21 and are used in conjunction with the feeding mechanism 3, provide an accurate feeding channel for the feeding mechanism 3. The feeding troughs 28 can guide the wood chips falling from the feeding mechanism 3 to accurately enter the feeding cylinder 21, avoiding the wood chips from spilling or entering the wrong position, ensuring a smooth connection between feeding and discharging, and improving the working efficiency and accuracy of the entire device.

[0029] It is worth mentioning that six scrapers 35 are arranged in a ring on the outer surface of the feed rod 34. This arrangement allows the scrapers 35 to scrape the wood chips from the inner wall of the feed housing 30 from all directions. During rotation, the scrapers 35 can promptly clean the wood chips adhering to the inner wall, preventing wood chips from accumulating and clogging the feed port 36, ensuring the continuity and smoothness of feeding, and improving the performance of the feeding mechanism 3.

[0030] It is worth emphasizing that the two feeding support frames 32 are respectively fixed to the upper end of the feeding motor 33, and their lower ends are fixedly connected to the upper end of the mounting frame 31, providing a stable support for the feeding motor 33. When the feeding motor 33 is working, the feeding support frame 32 can withstand the vibration and force generated by the motor, reduce the impact of vibration on the motor and the entire feeding mechanism 3, ensure the stable operation of the feeding motor 33, and thus improve the reliability and stability of the feeding mechanism 3.

[0031] The feeding motor 27 and the unloading motor 33 are existing technologies and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switches, which are not the main technical points of this patent and will not be described in detail. The "front, rear, left, and right" perspectives of this device are... Figure 1 The direction shown in the diagram is the reference.

[0032] Working principle: The feeding motor 27 is started, and its output drives the feeding rod 22 to rotate. Since three conveying blades 24 and two feeding blades 25 are alternately distributed on the feeding rod 22, during rotation, the conveying blades 24 and feeding blades 25 push the biomass wood chips in the feeding cylinder 21 inside the housing 20. As the feeding rod 22 rotates, the wood chips gradually move along the feeding cylinder 21 towards the discharge port 23 on one side, and are finally discharged through the discharge port 23, completing the feeding process.

[0033] When the feeding motor 33 is turned on, its output drives the feeding rod 34 to rotate. The feeding rod 34 has six scrapers 35 and feeding blades 37 arranged in a ring on it. During rotation, the scrapers 35 scrape away the sawdust adhering to the inner wall of the feeding shell 30, preventing sawdust accumulation and blockage. The feeding blades 37 push the sawdust downwards, allowing it to fall smoothly from the feeding port 36 at the lower end of the feeding shell 30, thus achieving the feeding function.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biomass sawdust helical pre-compression feeding device, comprising a chassis (1), characterized in that: The inner surface of the base frame (1) is fixedly provided with a feeding mechanism (2) on both sides, and two unloading mechanisms (3) are fixedly provided at the upper end of the feeding mechanism (2). The feeding mechanism (2) includes a housing (20), a feeding cylinder (21) is fixedly provided inside the housing (20), a discharge port (23) is provided on one side of the feeding cylinder (21), a feeding motor (27) is provided on one side of the feeding cylinder (21), a feeding rod (22) is fixedly provided at the output end of the feeding motor (27), a plurality of conveying blades (24) are provided on the outer surface of the feeding rod (22), and a plurality of feeding blades (25) are fixedly provided on the outer surface of the feeding rod (22).

2. The biomass wood chip screw pre-compression feed device according to claim 1, characterized in that: The feeding mechanism (3) includes a feeding shell (30), a feeding port (36) is provided at the lower end of the feeding shell (30), a mounting frame (31) is fixedly provided at the upper end of the feeding shell (30), a feeding motor (33) is provided at the upper end of the mounting frame (31), a feeding rod (34) is fixedly provided at the output end of the feeding motor (33), a plurality of scrapers (35) are fixedly provided on the outer surface of the feeding rod (34), and a feeding blade (37) is fixedly provided on the outer surface of the feeding rod (34).

3. The biomass wood chip screw pre-compression feed device according to claim 1, characterized in that: Five ventilation slots (4) are provided on both sides of the box (20), and each set of five ventilation slots (4) is distributed at equal intervals on both sides of the box (20).

4. The biomass wood chip screw pre-compression feed device according to claim 1, characterized in that: The conveying blade (24) has three parts and the feeding blade (25) has two parts. The three conveying blades (24) and the two feeding blades (25) are alternately distributed on the outer surface of the feeding rod (22).

5. The biomass wood chip screw pre-compression feed device according to claim 1, characterized in that: The lower end of the feeding motor (27) is fixedly provided with a feeding support frame (26), and the lower end of the feeding support frame (26) is fixedly connected to the lower inner wall of the box (20).

6. The biomass wood chip screw pre-compression feed device according to claim 1, characterized in that: The outer surfaces of the box (20) and the feed cylinder (21) are provided with two feed troughs (28) that are used in conjunction with the two feeding mechanisms (3).

7. The biomass wood chip screw pre-compression feed device according to claim 2, characterized in that: The scraper (35) is provided with twelve, and six scrapers (35) are distributed in a ring on the outer surface of the two feed rods (34).

8. The biomass wood chip screw pre-compression feed device according to claim 2, characterized in that: The upper ends of the two feeding motors (33) are fixedly provided with feeding support frames (32), and the lower ends of the two feeding support frames (32) are respectively fixedly connected to the upper ends of the two mounting frames (31).

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