Agricultural straw recycling crusher

Abstract

The utility model discloses an agricultural straw recycling crusher which comprises a crusher shell, a feeding port is formed in one side of the crusher shell, a feeding hopper is connected to the feeding port, a plurality of sets of crushing cutters are arranged in the crusher shell through a main shaft, and the end of the main shaft is connected with a driving piece. The utility model relates to the technical field of straw crushers, in particular to an agricultural straw recycling crusher, which adopts a conventional crusher layout, a flow guide port is arranged at the top of a crushing cavity of the crusher, the crushing cavity is connected with a dust suppression structure through the flow guide port, and the dust suppression structure consists of two pipe sections of a Venturi structure. The internal and external pressure difference change is formed by utilizing the negative pressure area generated when high-speed air flows through the Venturi structure, so that dust in the cavity of the crusher flows into the separation device under the carrying action of the air to be separated, the dust and small crushed aggregates are separated and are far away from a user, and the body health of the user is prevented from being influenced.

Description

Technical Field

[0001] This utility model relates to the field of straw crusher technology, specifically an agricultural straw recycling crusher. Background Technology

[0002] In modern agricultural production, straw is a very important agricultural by-product. At present, the methods for handling straw are often to return it directly to the field, burn it, or use it as feed or raw material. However, the energy utilization rate of straw is low when it is directly returned to the field, and burning it will affect the environment. Therefore, recycling it as a raw material for feed processing is a more environmentally friendly and reliable treatment method at present.

[0003] In the process of straw recycling, both processing and feeding require straw to be crushed. At present, straw crushing mainly adopts open-type direct feeding. However, during the crushing process, dust attached to the straw and straw fragments will generate floating dust under the crushing action. Long-term use will affect the service life of production personnel. In view of this, in-depth research was conducted on the above problems, which led to this case. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an agricultural straw recycling and crushing machine, which solves the existing technical problems.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an agricultural straw recycling crusher, including a crusher shell, a feed inlet is provided on one side of the crusher shell, a feed hopper is connected to the feed inlet, multiple sets of crushing blades are provided inside the crusher shell through a main shaft, and a drive component is connected to the end of the main shaft;

[0006] The crusher shell is also provided with a flow guide port, and a dust suppression structure is connected to the flow guide port;

[0007] The dust suppression structure includes a dust guide pipe connected to the crusher housing. The dust guide pipe has an L-shaped structure, and a separation sleeve is connected to the end of the dust guide pipe. At least one pair of separation screens are provided on the separation sleeve, and the pair of separation screens are arranged in parallel.

[0008] The dust suppression structure also includes a dust inlet pipe, which is connected to the end of the dust guide pipe. A drive fan blade is provided inside the dust inlet pipe, and a pulley is provided at the end of the drive fan blade. The pulley is linked with the drive component.

[0009] The connection between the dust inlet pipe and the dust guide pipe is a Venturi structure.

[0010] Preferably, the junction of the flow guide port on the crusher housing and the dust flow guide pipe is located in the negative pressure zone of the Venturi structure.

[0011] Preferably, the separation sleeve is connected to the end of the dust guide pipe via a threaded structure.

[0012] Preferably, a pair of separation mesh plates are fixed at both ends of the separation sleeve, and the mesh openings of the pair of separation mesh plates are arranged alternately.

[0013] Preferably, the driving component includes a drive motor, the drive motor is provided on one side of the crusher housing, the drive end of the drive motor is provided with a drive wheel, the end of the main shaft is provided with a driven wheel, and the drive wheel, the driven wheel, and the pulley are driven by a belt.

[0014] Preferably, a pair of protective nets are provided inside the dust inlet pipe, and the pair of protective nets are located on both sides of the drive fan blades.

[0015] Beneficial effects

[0016] This utility model provides an agricultural straw recycling crusher. It has the following beneficial effects: This agricultural straw recycling crusher adopts a conventional crusher layout. A guide port is set at the top of the crushing chamber, and a dust suppression structure is connected through the guide port. The dust suppression structure is composed of two sections of a Venturi structure. The negative pressure zone created by the high-speed airflow through the Venturi structure forms a pressure difference between the inside and outside, causing the dust in the crusher chamber to flow into the separation device under the carry-on effect of the air for separation. This separates the dust and small pieces of material, keeping them away from the user and avoiding any impact on the user's health. Attached Figure Description

[0017] Figure 1 This is a first three-dimensional structural diagram of an agricultural straw recycling and crushing machine according to the present invention.

[0018] Figure 2 This is a second three-dimensional structural diagram of an agricultural straw recycling and crushing machine according to the present invention.

[0019] Figure 3 This is a third-dimensional structural diagram of an agricultural straw recycling and crushing machine according to the present invention.

[0020] In the diagram: 1. Crusher casing; 2. Feed inlet; 3. Feed hopper; 4. Crusher blade; 5. Drive unit; 6. Guide port; 7. Dust guide pipe; 8. Separating sleeve; 9. Separating screen; 10. Dust inlet pipe; 11. Drive fan blade; 12. Protective net; 501. Drive motor; 502. Drive wheel; 503. Driven wheel; 504. Belt pulley. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-3 This utility model provides an implementation scheme: In modern agricultural production, straw needs to be recycled in order to protect the environment. At present, the main method for recycling and crushing straw is to crush it with a crusher. However, straw itself will be contaminated with dust and small floating objects will be generated during the crushing process, which will affect the health of users.

[0023] To address the aforementioned issues, this application discloses an agricultural straw recycling and crushing machine. The equipment uses a crusher shell 1 as its outer casing. A feed inlet is provided on one side of the crusher shell 1, and a feed hopper 3 is connected to the feed inlet. Straw is inserted into the crusher shell 1 through the feed hopper 3. A feed chain and pressure roller can be installed on the feed hopper 3 to assist feeding. Inside the crusher shell 1, multiple sets of crushing blades 4 are arranged through a main shaft. A drive unit 5 is connected to the end of the main shaft. The drive unit 5 is controlled by an external power supply to operate. The drive unit 5 drives the main shaft of the crusher to rotate, which in turn drives the multiple sets of crushing blades 4 to rotate. The multiple sets of crushing blades 4 are used to fully crush the straw. After crushing, the straw material is discharged from the discharge port 2 under the action of gravity.

[0024] Furthermore, in order to avoid the dust and fine floating material on the straw being stirred up during the crushing process and affecting the health of personnel, a guide port 6 is also provided on the crusher shell 1. A dust suppression structure is connected to the guide port 6. The dust suppression structure generates a negative pressure guiding effect to guide and adsorb the dust and fine floating material.

[0025] Specifically, refer to the instruction manual. Figure 1-3 It can be seen that the above-mentioned dust suppression structure includes a dust guide pipe 7, which is connected to the crusher shell 1. The dust guide pipe 7 has an L-shaped structure, and a separation sleeve 8 is connected to the end of the dust guide pipe 7. At least one pair of separation screens 9 are provided on the separation sleeve 8, and the pair of separation screens 9 are arranged in parallel.

[0026] In the specific implementation process, the air in the dust guide pipe 7 flows at high speed to the side of the separation sleeve 8. Under the action of high-speed air, the junction of the dust guide pipe 7 and the guide port 6 is in a negative pressure state, and the guide port 6 is connected to the crushing chamber of the crusher shell 1. Under the action of negative pressure, tiny floating dust particles are adsorbed to the side of the dust guide pipe 7 with the air. The separation sleeve 8 is provided on the dust guide pipe 7. A pair of separation mesh plates 9 on the separation sleeve 8 intercept the dust and debris. Furthermore, through the extension effect of the dust guide pipe 7, the exhaust position is moved away from the side of the feed hopper 3 and away from the operators to avoid affecting the health of the operators.

[0027] According to the instruction manual Figure 1-3 It can be seen that the above-mentioned dust suppression structure also includes a dust inlet pipe 10, which is connected to the end of the dust guide pipe 7. A drive fan blade 11 is provided inside the dust inlet pipe 10, and a pulley 504 is provided at the end of the drive fan blade 11. The pulley 504 is linked with the drive component 5.

[0028] In the specific implementation process, a drive fan blade 11 is installed at the end of the dust inlet pipe. While the drive component 5 drives the main shaft to rotate, the drive component 5 synchronously drives the pulley 504 to rotate, so that the pulley 504 drives the drive fan blade 11 to rotate. The drive fan blade 11 adopts a multi-stage impeller structure. When the multi-stage impeller rotates, high-speed air is generated and passes through the dust guide pipe 7. In order to improve the negative pressure effect, the junction of the dust inlet pipe 10 and the dust guide pipe 7 is a Venturi structure. The Venturi structure is a negative pressure structure. By reducing the diameter at the junction of the dust inlet pipe 10 and the dust guide pipe 7, a significant negative pressure zone is generated at the position where the high-speed air enters the dust guide pipe 7. Under the action of negative pressure, the dust enters the dust guide pipe 7 under the action of air carrying and moves towards the separation sleeve 8 with the high-speed air.

[0029] As a preferred option, the junction of the flow port 6 on the pulverizer housing 1 and the dust flow pipe 7 is located in the negative pressure zone of the Venturi structure, thereby improving the negative pressure carrying capacity.

[0030] As a preferred option, the ends of the separating sleeve 8 and the dust guide pipe 7 are connected by a threaded structure, which facilitates disassembly and cleaning.

[0031] As a preferred option, a pair of separation mesh plates 9 are further fixed at both ends of the separation sleeve 8, and the mesh openings of the pair of separation mesh plates 9 are arranged in an alternating manner to improve the flow interception capacity of the separation mesh plates 9.

[0032] As a preferred embodiment, the aforementioned drive component 5 further includes a drive motor 501. The drive motor 501 is provided on one side of the crusher housing 1. The drive end of the drive motor 501 is provided with a drive wheel 502, and the end of the main shaft is provided with a driven wheel 503. The drive wheel 502, the driven wheel 503, and the pulley 504 are driven by a belt.

[0033] As a preferred option, a pair of protective nets 12 are provided inside the dust inlet pipe 10. The pair of protective nets 12 are located on both sides of the drive fan blade 11 to protect the drive fan blade 11.

[0034] In summary, this agricultural straw recycling crusher adopts a conventional crusher layout. A guide port 6 is set at the top of the crushing chamber, which connects to a dust suppression structure. The dust suppression structure consists of two sections of a Venturi structure. The negative pressure zone generated by the high-speed airflow through the Venturi structure creates a pressure difference between the inside and outside, causing the dust in the crusher chamber to flow into the separation device for separation under the action of the air. This separates the dust and small pieces of material, keeping them away from the user and avoiding any impact on the user's health.

[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. An agricultural straw recycling crusher, comprising a pulverizer shell (1), one side of the pulverizer shell (1) is provided with a feeding port, a feeding hopper (3) is connected on the feeding port, characterized in that, The inside of the pulverizer shell (1) is provided with a plurality of sets of pulverizing knives (4) through a main shaft, the end of the main shaft is connected with a driving member (5); The pulverizer shell (1) is further provided with a flow guide opening (6), the flow guide opening (6) is connected with a dust suppression structure; The dust suppression structure comprises a dust flow guide pipe (7), the dust flow guide pipe (7) is connected on the pulverizer shell (1), the dust flow guide pipe (7) is of L-shaped structure, the end of the dust flow guide pipe (7) is connected with a separation sleeve (8), the separation sleeve (8) is provided with at least one pair of separation mesh plates (9), one pair of the separation mesh plates (9) are arranged in parallel; The dust suppression structure further comprises a dust air inlet pipe (10), the dust air inlet pipe (10) is connected at the end of the dust flow guide pipe (7), the dust air inlet pipe (10) is provided with a driving fan blade (11) inside, the end of the driving fan blade (11) is provided with a belt pulley (504), the belt pulley (504) is linked with the driving member (5); The combination position of the dust air inlet pipe (10) and the dust flow guide pipe (7) is of Venturi structure.

2. The agricultural straw recycling crusher according to claim 1, characterized in that, The combination position of the flow guide opening (6) on the pulverizer shell (1) and the dust flow guide pipe (7) is located in the negative pressure area of the Venturi structure.

3. The agricultural straw recycling crusher according to claim 2, characterized in that, The separation sleeve (8) is connected with the end of the dust flow guide pipe (7) through a threaded structure.

4. The agricultural straw recycling crusher according to claim 3, characterized in that, One pair of the separation mesh plates (9) are respectively fixed at the two ends of the separation sleeve (8), the mesh holes of one pair of the separation mesh plates (9) are arranged alternately.

5. The agricultural straw recycling crusher according to claim 4, characterized in that, The driving member (5) comprises a driving motor (501), one side of the pulverizer shell (1) is provided with the driving motor (501), the driving end of the driving motor (501) is provided with a driving pulley (502), the end of the main shaft is provided with a driven pulley (503), the driving pulley (502) is driven pulley (503) and belt pulley (504) through the belt transmission.

6. The agricultural straw recycling crusher according to claim 5, characterized in that, The dust air inlet pipe (10) is provided with a pair of protective nets (12), the pair of protective nets (12) are arranged on both sides of the driving fan blade (11).

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