A high-efficiency crusher for preparing biomass particles

Abstract

The utility model relates to the technical field of efficient crushers for preparing biomass particles, and proposes an efficient crusher for preparing biomass particles, including a crusher body, a feeding body for feeding the crusher body, a crushing mechanism is arranged in the crusher body, the feeding body includes a frame, a conveying assembly, and a plurality of first hot air blowers, each of which is fixedly connected to the frame, and the air outlet of each first hot air blower is located above the conveying assembly; the crushing mechanism includes a first crushing part and a second crushing part, the first crushing part is located above the second crushing part, a second hot air blower is arranged on the top of the crusher body, and the air outlet of the second hot air blower is located between the first crushing part and the second crushing part. Through the above technical scheme, the problem that agricultural and forestry residues are difficult to be crushed due to moisture in the related technology is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-efficiency crushers for preparing biomass particles, and specifically relates to a high-efficiency crusher for preparing biomass particles. Background Art

[0002] Biomass pellets generally refer to fuel pellets made from compressed agricultural and forestry residues and waste such as wood chips, straw, corn stalks, and rice straw.

[0003] Since these agricultural and forestry residues contain a certain amount of moisture when they are collected, although they will be given priority to air-drying for the convenience of crushing them; however, when the business is busy, the air-drying time of agricultural and forestry residues may not be enough. Therefore, there may still be residual moisture in these agricultural and forestry residues, and the presence of this moisture will make it difficult to crush them: such as straw. Straw in a wet state has higher toughness and viscosity, making it more difficult to be effectively crushed by mechanical structures during the crushing process, and it may even stick to each other and clump, which increases the difficulty of crushing and affects the crushing efficiency. Utility Model Content

[0004] The utility model provides a high-efficiency crusher for preparing biomass particles, which solves the problem in the related art that agricultural and forestry residues are difficult to be crushed due to moisture.

[0005] The technical solution of the utility model is as follows:

[0006] A high-efficiency crusher for preparing biomass particles comprises a crushing body and a feeding body for feeding the crushing body, wherein a crushing mechanism is arranged in the crushing body, the feeding body comprises a frame, a conveying assembly, and a plurality of first hot air blowers, each of which is fixedly connected to the frame, and an air outlet of each first hot air blower is located above the conveying assembly; the crushing mechanism comprises a first crushing part and a second crushing part, the first crushing part is located above the second crushing part, a second hot air blower is arranged on the top of the crushing body, and an air outlet of the second hot air blower is located between the first crushing part and the second crushing part.

[0007] Furthermore, the first crushing part includes a plurality of crushing rollers, each of which is rotatably connected to the crushing body, and the second crushing part includes a plurality of crushing assemblies, each of which includes a plurality of crushing shafts, each of which is rotatably connected to the crushing body, and each crushing shaft is provided with a plurality of crushing blades.

[0008] Furthermore, the crushing blades on the adjacent crushing blade shafts are parallel to each other on the horizontal projection plane.

[0009] Furthermore, the crushing assemblies are arranged in sequence in a direction away from the first crushing part, and the axes of the crushing cutter shafts in adjacent crushing assemblies are perpendicular to each other on a horizontal projection plane.

[0010] Furthermore, at least three crushing rollers are provided, and the three crushing rollers respectively constitute a first crushing channel and a second crushing channel. The first crushing channel is at the same level as the conveying component and is parallel to each other. The second crushing channel is located between the conveying component and the second crushing part.

[0011] Furthermore, a plurality of first hot air blowers are provided on both sides of the rack, and the first hot air blowers on both sides of the rack are parallel to each other on the horizontal projection plane.

[0012] Furthermore, a closing cover plate is provided on the top of one end of the frame away from the crushing body, and the closing cover plate is integrally formed with the frame.

[0013] Furthermore, the frame is provided with a plurality of ventilation holes for ventilating the first hot air blowers, and each of the ventilation holes corresponds to each of the first hot air blowers one by one.

[0014] The working principle and beneficial effects of the utility model are:

[0015] 1. The feeding machine body in the utility model includes a frame and a conveying assembly. A plurality of first hot air blowers are arranged on the frame. The air outlets of the first hot air blowers are all located above the conveying assembly. When the conveying assembly conveys the agricultural and forestry residues, the first hot air blowers can be used to dry the agricultural and forestry residues, so that the agricultural and forestry residues become dry, thereby facilitating the crushing mechanism to crush the agricultural and forestry residues.

[0016] 2. The crushing mechanism in the utility model includes a first crushing part and a second crushing part. Some agricultural and forestry residues contain a certain amount of moisture, which makes them have a certain toughness, resulting in them being in a clumping shape after one crushing. The agricultural and forestry residues are crushed in turn by the first crushing part and the second crushing part, respectively realizing the coarse crushing and fine crushing of the agricultural and forestry residues, so that the agricultural and forestry residues can be crushed multiple times, and these particles can be further processed into smaller particles, thereby improving the crushing degree of the agricultural and forestry residues, thereby indirectly improving the crushing efficiency of the agricultural and forestry residues.

[0017] 3. A second hot air blower is also provided between the first water splashing part and the second water splashing part in the utility model, so that the crushed agricultural and forestry residues can be dried for the second time, which is convenient for the second crushing part to crush the agricultural and forestry residues, thereby improving the crushing efficiency of the agricultural and forestry residues. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0020] Figure 2 Schematic diagram of the internal structure of this embodiment;

[0021] Figure 3 Schematic diagram of the structure of the second crushing part in this embodiment;

[0022] Figure 4 It is a cross-sectional view of the crushing machine body in this embodiment.

[0023] In the figure:

[0024] 1. Crushing machine body; 11. Second hot air blower; 2. Loading machine body; 21. Frame; 211. Ventilation port; 212. Closing cover; 22. Conveying assembly; 23. First hot air blower; 3. Crushing mechanism; 31. First crushing part; 311. Crushing roller; 3111. First crushing channel; 3112. Second crushing channel; 32. Second crushing part; 321. Crushing assembly; 3211. Crushing knife shaft; 3212. Crushing blade. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-2 As shown, this embodiment proposes an efficient crusher for preparing biomass particles, which mainly includes a crushing body 1, a feeding body 2 for feeding the crushing body, and the feeding body 2 includes a frame 21, a conveying component 22, and a plurality of first hot air blowers 23. The conveying component 22 is supported by the frame 21 to make the conveying component 22 at a certain horizontal height, so that the conveying component 22 can realize the feeding process of the crushing body 1. The conveying component 22 in this embodiment is preferably a belt conveying mechanism, which fully guarantees the conveying efficiency of agricultural and forestry residues, so that agricultural and forestry residues can be transported. The transportation does not need to be interrupted, thereby improving the production efficiency of biomass particles; each first hot air blower 23 is fixedly connected to the frame 21, and the air outlet of each first hot air blower 23 is located above the conveying component 22, that is, with the start-up of the first hot air blower 23, a continuous stream of hot air is blown to the agricultural and forestry residues located on the conveying component 22, thereby increasing the evaporation rate of water attached to the surface of the agricultural and forestry residues, thereby drying the agricultural and forestry residues, and preventing these agricultural and forestry residues from having too much water, resulting in excessive toughness and viscosity, thereby affecting the crushing efficiency of the agricultural and forestry residues;

[0027] A plurality of first hot air blowers 23 are provided on both sides of the frame 21, so that both sides of the agricultural and forestry residues on the conveying component 22 can be blown by hot air, so that the hot air acts evenly on the agricultural and forestry residues, thereby improving the drying efficiency of the agricultural and forestry residues; the first hot air blowers 23 on both sides of the frame 21 are parallel to each other on the horizontal projection plane, avoiding the first hot air blowers 23 on both sides from blowing each other mouth to mouth, causing the first hot air blowers 23 to overheat or even be damaged, thereby fully ensuring the service life of the first hot air blowers 23.

[0028] A closed cover 212 is provided on the top of the end of the frame 21 away from the crushing body 1. By blocking the top of the frame 21, the hot air blown by the first hot air blower 23 is prevented from flowing out of the frame 21 directly upward, thereby extending the time the hot air stays on the conveying component 22, that is, increasing the contact time between the heat in the hot air and the agricultural and forestry residues, thereby enhancing the drying effect of the agricultural and forestry residues; the closed cover 212 and the frame 21 are integrally formed, so that the connection structure between the two is more stable, which fully ensures the stability of the overall structure of this embodiment.

[0029] In order to prevent the frame 21 itself from blocking the hot air blown out by the first hot air blower 23, the hot air moves along the surface of the frame 21, and there is a "counterattack" phenomenon with the hot air blown out by other first hot air blowers 23, resulting in a slower air flow speed at the closed cover 212, which in turn affects the evaporation rate of moisture attached to the agricultural and forestry residues. Therefore, a plurality of vents 211 for ventilation of the first hot air blower 23 are provided on the frame 21, and each vent 211 corresponds to each first hot air blower 23 one by one, so that part of the air can flow out directly from the side wall of the frame 21, ensuring the air flow efficiency at the closed cover 212, thereby increasing the contact time between the heat in the hot air and the agricultural and forestry residues, and ensuring the air flowability at the closed cover 212, fully ensuring the drying effect of the agricultural and forestry residues in this embodiment, thereby facilitating the crushing of the agricultural and forestry residues.

[0030] like Figure 2-3 As shown, a crushing mechanism 3 is provided in the crushing machine body 1 in this embodiment, and the crushing mechanism 3 includes a first crushing part 31 and a second crushing part 32. The first crushing part 31 is located above the second crushing part 32, that is, this embodiment can crush agricultural and forestry residues at least twice to prevent the agricultural and forestry residues from being in a clumping shape (not meeting the processing requirements) after being crushed once due to the fact that some agricultural and forestry residues contain a certain amount of moisture and have a certain toughness. However, multiple crushings can further process these particles into smaller particles, which fully guarantees the crushing effect of the crushing mechanism 3 and is also beneficial to the efficiency of subsequent processes.

[0031] The first crushing part 31 includes a plurality of crushing rollers 311, each of which is rotatably connected to the crushing machine body 1, and each of which is provided with a plurality of crushing teeth. When the agricultural and forestry residues contact the rotating crushing rollers 311, the crushing rollers 311 can effectively cut and squeeze the agricultural and forestry residues with the help of sharp crushing teeth, thereby achieving the effect of crushing. The materials that have been crushed for the first time, under the action of gravity and the guidance of the internal structure of the crushing machine body 1, come to the second crushing part 32, and the second crushing part 32 includes a plurality of crushing components 321, and each crushing component 321 includes a plurality of crushing teeth. The crushing knife shaft 3211, each crushing knife shaft 3211 is rotatably connected to the crushing machine body 1, and each crushing knife shaft 3211 is provided with a plurality of crushing blades 3212, that is, as the crushing knife shaft 3211 rotates, the crushing blades 3212 will also rotate therewith, and then perform secondary cutting on the material coming to the second crushing part 32, and the second crushing part 32 is cut by rotating the blades. Compared with other complicated cutting methods, this direct cutting method is simpler and more intuitive, and is conducive to operations such as adjusting the tool position or tool specifications, and conveniently controlling and adjusting the cutting parameters.

[0032] In this embodiment, the first crushing part 31 and the second crushing part 32 should be driven by a motor or other driving member so that the first crushing part 31 and the second crushing part 32 can operate quickly and stably, thereby improving work efficiency. If necessary, a linkage structure such as a belt can be set between the first crushing part 31, the second crushing part 32 and the driving member to avoid excessive number of driving members, resulting in redundant driving force and waste.

[0033] Taking into account the limitation of the width of the conveying component 22 and the size of the feeding port of the crushing machine body 1, the way in which the agricultural and forestry residues enter the crushing machine body 1 is different according to the size of the agricultural and forestry residues. In order to cope with this situation and better realize the crushing work, at least three crushing rollers 311 are provided. The three crushing rollers 311 respectively constitute the first crushing channel 3111 and the second crushing channel 3112. The first crushing channel 3111 is at the same horizontal height as the conveying component 22 and is parallel to each other. That is, the first crushing channel 3111 is mainly facing the agricultural and forestry residues with a longer overall length. Under the action of the conveying component 22, the longer The agricultural and forestry residues will directly enter the first crushing channel 3111 and be crushed; the second crushing channel 3112 is located between the conveying component 22 and the second crushing part 32. There is an angle between the central axis of the second crushing channel 3112 and the central axis of the first crushing channel 3111, which is convenient for the smaller agricultural and forestry residues to directly fall into the second crushing channel 3112 and be crushed. That is, through the mutual cooperation between the first crushing channel 3111 and the second crushing channel 3112, the crushing work of the first crushing part 31 is more delicate and precise, and the crushing efficiency of the first crushing part 31 is fully guaranteed.

[0034] At the same time, a second hot air blower 11 is provided on the top of the crushing machine body 1, and the air outlet of the second hot air blower 11 is located between the first crushing part 31 and the second crushing part 32. The existence of the second hot air blower 11 enables the crushed agricultural and forestry residues to be dried twice, which is convenient for the second crushing part 32 to crush the agricultural and forestry residues, thereby improving the crushing efficiency of the agricultural and forestry residues.

[0035] like Figure 3-4 As shown, the crushing blades 3212 on adjacent crushing knife shafts 3211 in this embodiment are parallel to each other on the horizontal projection plane, so as to avoid the crushing blades 3212 on the crushing knife shafts 3211 colliding with each other when the adjacent crushing knife shafts 3211 rotate, thereby causing damage to the knife shafts; and after the crushing knife shafts 3211 on the adjacent crushing knife shafts 3211 are parallel to each other, a crushing knife shaft 3211 can be added to the crushing knife shaft 3211 only by controlling the distance between the adjacent crushing knife shafts 3211, which facilitates the adjustment of the crushing knife shaft 3211.

[0036] The crushing components 321 are arranged in sequence in a direction away from the first crushing part 31, so that the material can be crushed multiple times to ensure the material crushing effect, and the axes of the crushing knife shafts 3211 in adjacent crushing components 321 are perpendicular to each other on the horizontal projection plane, that is, the cutting and crushing directions of the materials by two adjacent crushing components 321 are perpendicular to each other, so that the second crushing part 32 can cut and crush the material in different directions in sequence, making the cutting and crushing of the material more thorough, and fully ensuring the crushing efficiency of this embodiment.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency crusher for preparing biomass pellets, comprising a crusher body (1) and a feeding body (2) for feeding the crusher body, wherein a crushing mechanism (3) is provided in the crusher body (1), characterized in that: The loading machine body (2) comprises a frame (21), a conveying assembly (22), and a plurality of first hot air blowers (23), each of the first hot air blowers (23) is fixedly connected to the frame (21), and an air outlet of each of the first hot air blowers (23) is located above the conveying assembly (22); The crushing mechanism (3) comprises a first crushing part (31) and a second crushing part (32), wherein the first crushing part (31) is located above the second crushing part (32), and a second hot air blower (11) is provided on the top of the crushing machine body (1), and an air outlet of the second hot air blower (11) is located between the first crushing part (31) and the second crushing part (32).

2. The high-efficiency crusher for preparing biomass particles according to claim 1, characterized in that: The first crushing part (31) comprises a plurality of crushing rollers (311), each of the crushing rollers (311) being rotatably connected to the crushing machine body (1); the second crushing part (32) comprises a plurality of crushing assemblies (321), each of the crushing assemblies (321) comprising a plurality of crushing blade shafts (3211), each of the crushing blade shafts (3211) being rotatably connected to the crushing machine body (1), and each crushing blade shaft (3211) being provided with a plurality of crushing blades (3212).

3. The high-efficiency crusher for preparing biomass particles according to claim 2, characterized in that: The crushing blades (3212) on adjacent crushing blade shafts (3211) are parallel to each other on a horizontal projection plane.

4. The high-efficiency crusher for preparing biomass particles according to claim 3, characterized in that: The crushing assemblies (321) are arranged in sequence in a direction away from the first crushing portion (31), and the axes of the crushing blade shafts (3211) in adjacent crushing assemblies (321) are perpendicular to each other on a horizontal projection plane.

5. The high-efficiency crusher for preparing biomass particles according to claim 4, characterized in that: At least three crushing rollers (311) are provided, and the three crushing rollers (311) respectively constitute a first crushing channel (3111) and a second crushing channel (3112); the first crushing channel (3111) and the conveying component (22) are at the same level and are parallel to each other; the second crushing channel (3112) is located between the conveying component (22) and the second crushing part (32).

6. The high-efficiency crusher for preparing biomass particles according to claim 1 or 4, characterized in that: A plurality of first hot air blowers (23) are provided on both sides of the frame (21), and the first hot air blowers (23) on both sides of the frame (21) are parallel to each other on a horizontal projection plane.

7. The high-efficiency crusher for preparing biomass particles according to claim 6, characterized in that: A closed cover plate (212) is provided on the top of one end of the frame (21) away from the crushing machine body (1); the closed cover plate (212) is integrally formed with the frame (21).

8. The high-efficiency crusher for preparing biomass particles according to claim 7, characterized in that: The frame (21) is provided with a plurality of ventilation openings (211) for ventilating the first hot air blowers (23), and each of the ventilation openings (211) corresponds to each of the first hot air blowers (23) one by one.

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