Agricultural solid waste treatment granulation extrusion device

By installing a vibrating guide and cold air blowing assembly at the outlet of the biomass pellet extruder, the problem of high-temperature pellets needing to be dried was solved, achieving efficient pellet cooling and moisture removal, and improving production efficiency and storage reliability.

CN224332094UActive Publication Date: 2026-06-09SHENYANG SETH ENVIRONMENTAL ENG DESIGN & RES CENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG SETH ENVIRONMENTAL ENG DESIGN & RES CENT CO LTD
Filing Date
2025-07-01
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing biomass pellets are at a high temperature after being formed under high pressure and high temperature. They must be dried and cooled before they can be packaged and stored, which results in high labor costs and is not conducive to mass production.

Method used

A vibrating guide mechanism is installed at the discharge port of the biomass pellet extruder. Combined with a belt conveyor and a cold air blowing component, the high-temperature pellets are evenly fed into the belt conveyor through the vibrating guide mechanism. The pellets are then turned over and swept by the rake component and cold air blowing to achieve rapid cooling and moisture removal.

Benefits of technology

It enables rapid cooling and moisture removal of high-temperature biomass pellets, improving production efficiency and storage reliability, simplifying the operation process, and reducing labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of granule extruding devices for agricultural solid waste treatment, including biomass granule extruding machine body, the discharge port side of biomass granule extruding machine body is provided with vibration material guiding mechanism, the export end of vibration material guiding mechanism is provided with belt conveyor, the top of belt conveyor is equipped with rack, the rack top is provided with cold air blowing and sweeping component, the utility model relates to agricultural solid waste treatment technical field, high-temperature biomass granule is moved and transported by belt conveyor, in the process of transfer, harrowing component is turned over to biomass granule while, air-cooled blowing and sweeping component carries out cold air blowing and sweeping to biomass granule surface, to realize the rapid cooling of high-temperature granule in the process of transfer, simultaneously, air current can take away excess moisture in biomass granule, further improve storage reliability, after air drying and cooling, biomass granule further via inclined conveyor enters into automatic packing machine and is packed.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural solid waste treatment technology, specifically to a pellet extrusion device for agricultural solid waste treatment. Background Technology

[0002] The recycling technology of agricultural solid waste is an important means to realize the circular economy of agriculture. Among them, the recycling technology of nutrients such as C, N, and P has always been a hot topic of concern in green agricultural technology. Straw pellet extruders are mechanical devices specifically used to compress agricultural waste such as straw and sawdust into pellet products. They are widely used in biomass energy production and livestock feed processing. For example, patent application CN219150038U discloses a biomass pellet production device. Crushed straw is gradually pressurized through a rotating shaft and a screw drive blade, causing the material to be compressed and extruded into biomass pellets under high pressure and high temperature after passing through an extrusion head and heating chamber. However, because biomass pellets are formed in a high-pressure, high-temperature environment, the pellet temperature is high, requiring drying before packaging and storage. This results in high labor costs and is not conducive to the mass production of biomass pellets. Therefore, this case was developed to address these issues. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a pellet extrusion device for agricultural solid waste treatment, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a pellet extrusion device for agricultural solid waste treatment, comprising a biomass pellet extruder body, a vibrating guide mechanism provided on one side of the discharge port of the biomass pellet extruder body, a belt conveyor provided at the outlet end of the vibrating guide mechanism, a frame installed on the top of the belt conveyor, a cold air blowing assembly provided above the frame, a rake assembly provided on one side of the cold air blowing assembly, rake claws on two adjacent sets of rake assemblies arranged alternately, an inclined conveyor provided at the outlet end of the belt conveyor, and the outlet end of the inclined conveyor connected to an automatic baler;

[0005] The vibrating material guiding mechanism includes a bracket, an elastic support, a material guiding trough, and a vibrating motor. The bracket is located below the discharge port of the extruder body, the elastic support is located on the bracket, the material guiding trough is located on the elastic support along an inclined direction, and the vibrating motor is installed on the lower side wall of the material guiding trough.

[0006] The aforementioned elastic support includes a support, a compression spring, and a connecting seat. The support is fixed on the bracket, the connecting seat is fixed on the side wall of the guide chute, and the compression spring is installed on the support and welded to the connecting seat.

[0007] The aforementioned cold air blowing assembly includes a mounting base, a fan, and a Y-shaped air guide duct. The mounting base is located above the frame, the fan is mounted on the mounting base, and one end of the Y-shaped air guide duct is connected to the fan outlet, while the other two ends face the top of the belt conveyor.

[0008] The outlet end of the aforementioned Y-shaped air duct is provided with a rectangular through groove, and the rectangular through groove is connected to the Y-shaped air duct through a flat conical transition section.

[0009] The above-mentioned rake assembly includes a support column, a crossbar, a torsion spring, and a connector. The support column is installed at the lower end of the frame beam by fixing bolts. The crossbar is fixed between the support columns. The torsion spring is fitted on the crossbar and one end is fixedly connected to the crossbar. The connector is rotatably fitted on the crossbar and one end is fixedly connected to the torsion spring. The rake claws are welded to one end of the connector along the inclined direction.

[0010] The lower end of the aforementioned rake claw has a conical block structure. Beneficial effects

[0011] This utility model provides a pellet extrusion device for agricultural solid waste treatment. It offers the following advantages: This pellet extrusion device improves upon the existing discharge mechanism of a biomass pellet extruder by incorporating a vibrating guide mechanism on one side of the extruder's discharge port. The vibrating guide mechanism evenly feeds the extruded high-temperature biomass pellets onto a belt conveyor, which then moves and transfers them. During this transfer, a rake assembly tumbles the biomass pellets while an air-cooling blowing assembly blows cold air onto the surface of the pellets, rapidly cooling the high-temperature pellets. Simultaneously, the airflow removes excess moisture from the pellets, further improving storage reliability. After air drying and cooling, the biomass pellets are then conveyed via an inclined conveyor to an automatic baler for packaging. The device features a simple structure, high automation, and effectively improves biomass pellet production efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of the pellet extrusion device for agricultural solid waste treatment according to the present invention.

[0013] Figure 2 This is a partial isometric structural diagram of the Y-shaped air duct location described in this utility model.

[0014] Figure 3 This is a three-dimensional structural diagram of the rake assembly described in this utility model.

[0015] Figure 4 This utility model Figure 1 A magnified schematic diagram of the structure at position a.

[0016] In the diagram: 1. Extruder body; 2. Belt conveyor; 3. Frame; 4. Inclined conveyor; 5. Automatic baler; 6. Support; 7. Guide chute; 8. Vibrating motor; 9. Support; 10. Compression spring; 11. Connecting seat; 12. Mounting seat; 13. Fan; 14. Y-shaped air duct; 15. Rectangular through-slot; 16. Flat conical transition section; 17. Support column; 18. Crossbar; 19. Torsion spring; 20. Connector; 21. Rake claw. Detailed Implementation

[0017] 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.

[0018] Example: Refer to the appendix of the instruction manual Figure 1-4As can be seen, this application specifically designs a pellet extrusion device for agricultural solid waste treatment, including a biomass pellet extruder body 1. The main structure of the biomass pellet extruder body 1 can be referred to as a biomass pellet production device with announcement number CN219150038U. A vibrating guide mechanism is provided on one side of the discharge port of the biomass pellet extruder body 1. A belt conveyor 2 is provided at the outlet end of the vibrating guide mechanism. A frame 3 is installed on the top of the belt conveyor 2. A cold air blowing assembly is provided above the frame 3. A rake assembly is provided on one side of the cold air blowing assembly. The rake claws 21 on the two adjacent rake assemblies are arranged alternately. An inclined conveyor 4 is provided at the outlet end of the belt conveyor 2. The outlet end of the inclined conveyor 4 is connected to an automatic baler 5. The aforementioned vibrating guide mechanism includes a support 6, an elastic support member, a guide trough 7, and a vibrating motor 8. The support 6 is located below the discharge port of the extruder body 1. The elastic support member is located on the support 6. The guide trough 7 is located on the elastic support member along the inclined direction. The vibrating motor 8 is installed on the lower side wall of the guide trough 7. The elastic support includes a support 9, a compression spring 10, and a connecting seat 11. The support 9 is fixed on the bracket 6, and the connecting seat 11 is fixed on the side wall of the guide trough 7. The compression spring 10 is installed on the support 9 and welded to the connecting seat 11. The discharge mechanism of the existing biomass pellet extruder body 1 is improved by setting a vibrating guide mechanism on one side of the discharge port of the extruder body 1. The high-temperature biomass pellets are evenly fed onto the belt conveyor 2 through the vibrating guide mechanism. The high-temperature biomass pellets are moved and transferred by the belt conveyor 2. During the transfer, the rake assembly turns the biomass pellets while the air-cooling blowing assembly blows cold air onto the surface of the biomass pellets, thereby achieving rapid cooling of the high-temperature pellets during the transfer. At the same time, the airflow can remove excess moisture from the biomass pellets, further improving storage reliability. After being air-dried and cooled, the biomass pellets are further fed into the automatic packaging machine 5 via the inclined conveyor 4 for packaging. The structure is simple, the degree of automation is high, and it can effectively improve the production efficiency of biomass pellets.

[0019] In the specific implementation process, as a preferred configuration, the above-mentioned cold air blowing assembly includes a mounting base 12, a fan 13, and a Y-shaped air guide duct 14. The mounting base 12 is set above the frame 3, the fan 13 is set on the mounting base 12, one end of the Y-shaped air guide duct 14 is connected to the air outlet of the fan 13, and the other two ends face the top of the belt conveyor 2. The outlet end of the Y-shaped air guide duct 14 is provided with a rectangular through groove 15. The rectangular through groove 15 and the Y-shaped air guide duct 14 are connected by a flat conical transition section 16. The fan 13 draws in external airflow from the top and injects it into the flat conical transition section 16 through the Y-shaped air guide duct 14, and further blows it onto the high-temperature biomass pellets through the rectangular through groove 15, thereby improving the heat dissipation and cooling speed of the biomass pellets.

[0020] In a preferred embodiment, the aforementioned rake assembly includes a support column 17, a crossbar 18, a torsion spring 19, and a connector 20. The support column 17 is installed at the lower end of the crossbeam of the frame 3 by fixing bolts. The crossbar 18 is fixed between the supports. The torsion spring 19 is fitted onto the crossbar 18 and one end is fixedly connected to the crossbar 18. The connector is rotatably fitted onto the crossbar 18 and one end is fixedly connected to the torsion spring 19. The rake claw 21 is welded to one end of the connector along an inclined direction. The lower end of the rake claw 21 is a conical block structure. 1. The connecting head contacts the biomass pellets on the belt conveyor 2 and diverts the biomass pellets, thereby forming several ridges on the belt conveyor 2 to increase the heat dissipation area. The torsion spring 19 provides a downward elastic force to the connecting head, so that the rake claw 21 maintains effective contact with the belt surface of the belt conveyor 2. The rake claws 21 on adjacent rake components are arranged in an alternating manner, which can realize repeated rakeing of the biomass pellets. In conjunction with the cold air blowing component, the heat dissipation efficiency can be further improved.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] 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 granule extruding device for agricultural solid waste treatment, comprising a biomass granule extruder body, characterized in that, A vibrating guide mechanism is provided on one side of the discharge port of the biomass pellet extruder body. A belt conveyor is provided at the outlet end of the vibrating guide mechanism. A frame is installed on the top of the belt conveyor. A cold air blowing assembly is provided above the frame. A rake assembly is provided on one side of the cold air blowing assembly. The rake claws on two adjacent sets of rake assemblies are arranged alternately. An inclined conveyor is provided at the outlet end of the belt conveyor. The outlet end of the inclined conveyor is connected to an automatic baler. The vibrating material guiding mechanism includes a bracket, an elastic support, a material guiding trough, and a vibrating motor. The bracket is located below the discharge port of the extruder body, the elastic support is located on the bracket, the material guiding trough is located on the elastic support along an inclined direction, and the vibrating motor is installed on the lower side wall of the material guiding trough.

2. The granule extrusion device for agricultural solid waste treatment according to claim 1, characterized in that, The elastic support includes a support, a compression spring, and a connecting seat. The support is fixed on the bracket, the connecting seat is fixed on the side wall of the guide trough, and the compression spring is installed on the support and welded to the connecting seat.

3. The granular extrusion device for agricultural solid waste treatment according to claim 1, characterized in that, The cold air blowing assembly includes a mounting base, a fan, and a Y-shaped air guide duct. The mounting base is located above the frame, the fan is mounted on the mounting base, and one end of the Y-shaped air guide duct is connected to the air outlet of the fan, while the other two ends face the top of the belt conveyor.

4. The pellet extrusion device for agricultural solid waste treatment according to claim 3, characterized in that, The outlet end of the Y-shaped air duct is provided with a rectangular through groove, and the rectangular through groove is connected to the Y-shaped air duct through a flat conical transition section.

5. The pellet extrusion device for agricultural solid waste treatment according to claim 1, characterized in that, The rake assembly includes a support column, a crossbar, a torsion spring, and a connector. The support column is installed at the lower end of the frame beam by fixing bolts. The crossbar is fixed between the support columns. The torsion spring is fitted on the crossbar and one end is fixedly connected to the crossbar. The connector is rotatably fitted on the crossbar and one end is fixedly connected to the torsion spring. The rake claws are welded to one end of the connector along the inclined direction.

6. The pellet extrusion device for agricultural solid waste treatment according to claim 1, characterized in that, The lower end of the rake claw has a conical block structure.