Biomass pellet fuel granulating mechanism

Abstract

The utility model discloses a biomass pellet fuel granulating mechanism, which comprises a granulating scraper knife, a circular mould, a compression roller and a turntable, the compression roller and the turntable are rotatably connected inside and outside the circular mould, an acute angle is formed between the granulating scraper knife and the corresponding position of the circular mould, and the blade of the granulating scraper knife is contacted with the outer wall of the circular mould. The side, corresponding to the fixing plate, of the granulating scraper knife is fixedly connected with a fixing threaded cylinder, a guide bolt is horizontally connected into the fixing threaded cylinder in a threaded mode, the guide sleeve and the fixing plate are movably connected to the surface of the guide bolt in a sleeving mode, and a supporting spring movably connected to the surface of the guide bolt in a sleeving mode is arranged between the guide sleeve and the fixing threaded cylinder. According to the utility model, the inclined granulation scraper knife is used for cutting off formed biomass particle fuel, the support spring is used for movably supporting the granulation scraper knife, and the support spring is continuously in a telescopic vibration state, so that the effect of cutting the biomass particle fuel through telescopic vibration of the granulation scraper knife is achieved, and the cutting-off speed is increased; the section formed by the biomass pellet fuel is neat, and slag is not prone to falling in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of granulators, in particular to a biomass pellet fuel granulating mechanism. Background Technique

[0002] The existing biomass pellet fuel granulators generally extrude the formed pellet fuel through the vertical push plates or push rods on the turntable into the die holes of the ring die. However, since the raw material of the biomass pellet fuel is powdery, the cross-sections of the biomass pellet fuel extruded by the push plates and push rods are uneven. During the extrusion process and subsequent transportation, the cross-sections will continuously shed slag due to the incomplete structure, affecting the finished product quality of the product, reducing the combustion performance, and at the same time increasing the powder dust in the production workshop. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the utility model provides a biomass pellet fuel granulating mechanism, which is used to solve the problem that the cross-sections of the biomass pellet fuel produced by the existing biomass pellet fuel granulators are uneven and prone to slag shedding.

[0004] To solve the above technical problems, the utility model provides the following technical solutions:

[0005] A biomass pellet fuel granulating mechanism includes a granulating shovel knife, a ring die, and a pressure roller and a turntable rotatably connected inside and outside the ring die. The granulating shovel knife is located above the turntable. The corresponding position of the granulating shovel knife and the ring die forms an acute angle, and the blade of the granulating shovel knife is in contact with the outer wall of the ring die. A fixing plate is fixedly connected to the turntable on one side of the granulating shovel knife. A fixing threaded cylinder is fixedly connected to the corresponding side of the granulating shovel knife. A guiding bolt is horizontally threadedly connected inside the fixing threaded cylinder. A guiding sleeve is fixedly connected to the side surface of the fixing plate. Both the guiding sleeve and the fixing plate are movably sleeved on the surface of the guiding bolt, and a supporting spring movably sleeved on the surface of the guiding bolt is arranged between the guiding sleeve and the fixing threaded cylinder.

[0006] Preferably, the fixing plate and the granulating shovel knife are parallel to each other, and guiding sleeves are arranged on both sides of the fixing plate.

[0007] Preferably, the guiding bolt is a long bolt with a smooth surface and threads only at one end corresponding to the fixing threaded cylinder.

[0008] Preferably, a linear bearing slidably sleeved on the surface of the guiding bolt is fixed inside the guiding sleeve.

[0009] Preferably, two mutually parallel guiding bolts and supporting springs are correspondingly arranged for each granulating shovel knife and the fixing plate.

[0010] Compared with the existing technology, the utility model has the following beneficial effects:

[0011] The utility model cuts the formed biomass pellet fuel by arranging an inclined granulation shovel knife, and the granulation shovel knife is movably supported by a support spring. When the granulation shovel knife just contacts the biomass pellet fuel and has not cut in, the support spring is squeezed and contracted. When the granulation shovel knife cuts into the biomass pellet fuel, completely cuts it, and separates from the biomass pellet fuel, the support spring has different degrees of elongation and tends to return to its original length, making the support spring constantly in a telescopic vibration state, achieving the effect of the granulation shovel knife cutting the biomass pellet fuel by telescopic vibration, improving the cutting speed, the cross section formed by the biomass pellet fuel is relatively neat, not easy to drop slag in the later stage, improving the product quality, and solving the problem that the cross section of the biomass pellet fuel produced by the existing biomass pellet fuel granulator is uneven and easy to drop slag. Description of the Drawings

[0012] Figure 1 It is a top view of the overall structure of the utility model;

[0013] Figure 2 It is a top view of the partial structure at the corresponding position of the granulation shovel knife of the utility model;

[0014] Figure 3 It is a top view cross-section at the corresponding position of the guiding bolt of the utility model;

[0015] Figure 4 It is a schematic diagram of the guiding bolt structure of the utility model.

[0016] In the figure: 1. Granulation shovel knife; 2. Ring die; 3. Press roller; 4. Turntable; 5. Fixed plate; 6. Fixed threaded cylinder; 7. Guiding bolt; 8. Guiding sleeve; 9. Support spring; 10. Linear bearing. Specific Embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0018] As Figures 1-4 shown, the present utility model provides a technical solution: a biomass pellet fuel granulation mechanism, including a granulation shovel knife 1, a ring die 2, and press rollers 3 and a turntable 4 rotatably connected inside and outside the ring die 2. The granulation shovel knife 1 is located above the turntable 4. The corresponding position of the granulation shovel knife 1 and the ring die 2 forms an acute angle, and the cutting edge of the granulation shovel knife 1 contacts the outer wall of the ring die 2;

[0019] A fixed plate 5 is fixedly connected to the turntable 4 on one side of the granulation shovel 1. The fixed plate 5 is parallel to the granulation shovel 1. On the side of the granulation shovel 1 corresponding to the fixed plate 5, a fixed threaded cylinder 6 is fixedly connected. A guiding bolt 7 is horizontally threadedly connected in the fixed threaded cylinder 6. The guiding bolt 7 is a long bolt with a smooth surface and threads only provided at one end corresponding to the fixed threaded cylinder 6.

[0020] A guiding sleeve 8 is fixedly connected to the side surface of the fixed plate 5. A linear bearing 10 that is slidably sleeved on the surface of the guiding bolt 7 is fixed inside the guiding sleeve 8. Both the guiding sleeve 8 and the fixed plate 5 are movably sleeved on the surface of the guiding bolt 7. Guiding sleeves 8 are provided on both sides of the fixed plate 5. And a supporting spring 9 that is movably sleeved on the surface of the guiding bolt 7 is provided between the guiding sleeve 8 and the fixed threaded cylinder 6. Two mutually parallel guiding bolts 7 and supporting springs 9 are correspondingly arranged for each granulation shovel 1 and the fixed plate 5.

[0021] Working principle:

[0022] The pressure roller 3 rotates to extrude the ring die 2 to produce biomass pellet fuel. The turntable 4 rotates to drive the granulation shovel 1 to cut the biomass pellet fuel during rotation to complete granulation. The supporting spring 9 movably supports the granulation shovel 1. When the granulation shovel 1 just contacts the biomass pellet fuel and has not cut in, the supporting spring 9 is squeezed and contracts. When the granulation shovel 1 cuts into the biomass pellet fuel, completely cuts it, and separates from the biomass pellet fuel, the supporting spring 9 has a tendency of elongation to different degrees to restore its original length, making the supporting spring 9 continuously in a state of telescopic vibration. The granulation shovel 1 cuts the biomass pellet fuel by telescopic vibration, improving the cutting speed and making the cross-section of the formed biomass pellet fuel relatively neat and not easy to shed slag later.

[0023] It should be noted that in this article, terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biomass pellet fuel granulation mechanism, comprising a granulation shovel blade (1), a ring die (2), and a pressure roller (3) and a turntable (4) rotatably connected to the inside and outside of the ring die (2), wherein the granulation shovel blade (1) is located above the turntable (4), and is characterized in that: The corresponding position of the granulation shovel knife (1) and the ring die (2) is at an acute angle, and the cutting edge of the granulation shovel knife (1) is in contact with the outer wall of the ring die (2). A fixing plate (5) is fixedly connected to the turntable (4) and is located on one side of the granulation shovel knife (1). A fixing threaded cylinder (6) is fixedly connected to the side of the granulation shovel knife (1) corresponding to the fixing plate (5). A guiding bolt (7) is horizontally threadedly connected inside the fixing threaded cylinder (6). A guiding sleeve (8) is fixedly connected to the side surface of the fixing plate (5). Both the guiding sleeve (8) and the fixing plate (5) are movably sleeved on the surface of the guiding bolt (7), and a supporting spring (9) movably sleeved on the surface of the guiding bolt (7) is arranged between the guiding sleeve (8) and the fixing threaded cylinder (6).

2. The pelletizing mechanism of a biomass pellet fuel according to claim 1, characterized in that: The fixing plate (5) is parallel to the granulation shovel knife (1), and guiding sleeves (8) are arranged on both sides of the fixing plate (5).

3. The granulation mechanism of a biomass pellet fuel according to claim 1, characterized in that: The guiding bolt (7) is a long bolt with a smooth surface and threads only provided at one end corresponding to the fixing threaded cylinder (6).

4. A biomass pellet fuel granulation mechanism according to claim 1, characterized in that: A linear bearing (10) slidably sleeved on the surface of the guiding bolt (7) is fixed inside the guiding sleeve (8).

5. A biomass pellet fuel granulation mechanism according to claim 1, characterized in that: Two mutually parallel guiding bolts (7) and supporting springs (9) are correspondingly arranged for each granulation shovel knife (1) and the fixing plate (5).

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