Straw fiber decomposition machine

By introducing an air intake and filter plate structure into the straw fiber decomposer, the dust pollution problem is solved, and efficient decomposition and clean and environmentally friendly straw processing are achieved.

CN224178707UActive Publication Date: 2026-05-01INST OF AGRI ECONOMICS & DEV CHINESE ACAD OF AGRI SCI +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INST OF AGRI ECONOMICS & DEV CHINESE ACAD OF AGRI SCI
Filing Date
2025-01-21
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing straw fiber decomposition machines cannot effectively filter and collect the dust inside the segmented straw fibers, causing the dust to be easily stirred up and pollute the air environment.

Method used

A straw fiber decomposer was designed, which uses an air intake and air intake hood combined with a filter plate structure to absorb and filter dust. The dust on the filter plate is cleaned by an electric telescopic rod, and the decomposition blades are rotated alternately by a rotary motor to improve the decomposition efficiency.

Benefits of technology

It effectively absorbs dust during the decomposition process, avoiding dust pollution to the environment, while improving the efficiency of straw fiber decomposition.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a straw fiber decomposer, which belongs to the technical field of straw crushing processing, and comprises a decomposition box and a feed hopper fixed on the surface of the decomposition box, a plurality of rotating shafts are rotatably connected in the decomposition box, a fixed cylinder is fixed on the outer wall of each rotating shaft, a plurality of decomposition blades are fixed on the outer wall of each fixed cylinder, and the decomposition blades are fixed on the outer wall of the fixed cylinder. A collecting box is installed on the outer wall of one side of the decomposing box, an air suction machine is installed on the surface of the collecting box, an air suction pipe is installed at the air inlet end of the air suction machine, an air suction cover fixedly connected with the inner wall of the decomposing box is fixed to the outer portion of the air suction pipe, and an electric telescopic rod is installed on the surface of the air suction cover; a filter plate is fixed to the output end of the electric telescopic rod, and a scraping plate is fixed to the bottom wall of the inner cavity of the air suction cover. According to the straw fiber decomposition machine, the straw fiber decomposition efficiency can be improved, meanwhile, dust generated in the decomposition process can be absorbed, and the dust is prevented from polluting the working environment.
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Description

Technical Field

[0001] This utility model belongs to the field of straw crushing and processing technology, specifically relating to a straw fiber decomposition machine. Background Technology

[0002] my country has a wide variety of crops, which results in a large amount of straw. In rural areas, straw is usually used as fuel for cooking and turned into ash fertilizer for the soil. With economic development, in order to avoid environmental pollution caused by burning straw, straw fibers are now recycled and made into fertilizer. To facilitate later processing, longer straw fibers are processed into segments using decomposition devices.

[0003] However, the existing discharge mechanism still has the following technical problems when in use: During the decomposition of straw fibers in the decomposer, some fine dust is generated. The current decomposer cannot effectively filter and collect the dust inside the segmented straw fibers, and some dust is easily raised, polluting the air environment. Utility Model Content

[0004] The purpose of this invention is to provide a straw fiber decomposition machine to solve the problem that the decomposition machines mentioned in the background art cannot effectively filter and collect the dust inside the segmented straw fibers, and that some dust is easily raised and pollutes the air environment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a straw fiber decomposition machine, comprising a decomposition box and a feeding hopper fixed to the surface of the decomposition box, a protective box installed on the back of the decomposition box, and a rotary motor installed on one side of the outer wall of the protective box, a plurality of rotating shafts rotatably connected inside the decomposition box, a fixed cylinder fixed to the outer wall of the rotating shaft, and a plurality of decomposition blades fixed to the outer wall of the fixed cylinder.

[0006] A collection box is installed on one side of the outer wall of the decomposition box. An air suction machine is installed on the surface of the collection box, and an air suction pipe is installed at the air inlet end of the air suction machine. An air suction hood is fixedly connected to the inner wall of the decomposition box on the outside of the air suction pipe. An electric telescopic rod is installed on the surface of the air suction hood, and a filter plate is fixed at the output end of the electric telescopic rod. A scraper is fixed on the bottom wall of the inner cavity of the air suction hood.

[0007] In a further embodiment, the output end of the rotary motor is fixed with a rotating shaft, the outer wall of the rotating shaft is fixed with a plurality of driving bevel gears, and one end of the rotating shaft is fixed with a driven bevel gear that meshes with the driving bevel gears.

[0008] In a further embodiment, a movable groove is provided on one side of the outer wall of the collection box, a collection box is movably connected in the movable groove of the collection box, and a positioning sleeve is fixed on one side of the outer wall of the collection box.

[0009] In a further embodiment, a connecting rod is movably connected inside the positioning sleeve, a limiting block is fixed at the bottom of the connecting rod, and a magnetic block that attracts the limiting block is fixed at the bottom of the positioning sleeve.

[0010] In a further embodiment, baffle one and baffle two are fixed to the inner walls of both sides of the decomposition box, and a discharge hopper is fixed to the inner wall of the lower half of the decomposition box.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] During the decomposition of straw fibers, the suction machine works and absorbs the dust in the decomposition chamber through the suction pipe and suction hood. It also works with the filter plate to filter the dust and prevent it from leaking into the air and polluting the environment.

[0013] After the straw fiber decomposes, the filter plate can be moved by the electric telescopic rod. At the same time, one end of the filter plate is attached to the scraper. The scraper can automatically clean the dust and other impurities on the filter plate to ensure the air circulation effect of the filter plate.

[0014] The rotating motor drives the rotating shaft and the active bevel gear to rotate, which in turn drives multiple fixed cylinders to rotate clockwise and counterclockwise alternately, thereby causing multiple decomposition blades to rotate and fully decompose the straw fibers, improving the decomposition efficiency. This straw fiber decomposition machine can not only accelerate the decomposition efficiency of straw fibers, but also absorb the dust generated during the decomposition process, avoiding dust pollution of the working environment. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a cross-sectional view of the disassembly box and the protective box of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the collection box and the air suction hood of this utility model;

[0020] Figure 5This is a schematic diagram of the positioning sleeve of this utility model.

[0021] In the diagram: 1. Disassembly box; 2. Feed hopper; 3. Baffle 1; 4. Baffle 2; 5. Protective box; 6. Rotary motor; 7. Rotating shaft; 8. Driving bevel gear; 9. Rotating shaft; 10. Driven bevel gear; 11. Fixed cylinder; 12. Disassembly blade; 13. Collection box; 14. Air suction machine; 15. Air suction pipe; 16. Air suction hood; 17. Electric telescopic rod; 18. Filter plate; 19. Scraper; 20. Collection box; 21. Positioning sleeve; 22. Connecting rod; 23. Limiting block; 24. Magnetic block; 25. Discharge hopper. Detailed Implementation

[0022] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0023] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0024] Please see Figure 1-5 This utility model provides a straw fiber decomposition machine, including a decomposition box 1 and a feeding hopper 2 fixed to the surface of the decomposition box 1. The top of the decomposition box 1 is provided with a feeding port. The inner walls on both sides of the decomposition box 1 are respectively welded with a first baffle 3 and a second baffle 4. The first baffle 3 and the second baffle 4 are alternately distributed, and the angle of the first baffle 3 and the second baffle 4 can be set according to the actual use requirements to ensure the smoothness of feeding. At the same time, the alternately distributed first baffle 3 and the second baffle 4 can block the debris generated during decomposition and prevent the material from splashing out and polluting the working environment during decomposition.

[0025] A protective box 5 is bolted to the back of the disassembly box 1. A rotary motor 6 is bolted to one side of the outer wall of the protective box 5. A rotary shaft 7 is fixed to the output end of the rotary motor 6 via a coupling. Multiple driving bevel gears 8 are welded to the outer wall of the rotary shaft 7. Multiple rotating shafts 9 are rotatably connected inside the disassembly box 1 via welded bearings. A driven bevel gear 10 that meshes with the driving bevel gear 8 is welded to one end of the rotating shaft 9. A fixed cylinder 11 is welded to the outer wall of the rotating shaft 9, and multiple disassembly blades 12 are welded to the outer wall of the fixed cylinder 11. The orientation of multiple active bevel gears 8 and driven bevel gears 10 can be set according to actual usage requirements, enabling multiple fixed cylinders 11 to rotate clockwise and counterclockwise alternately. The rotary motor 6 drives the rotating shaft 7 and the active bevel gear 8 to rotate, thereby simultaneously driving multiple fixed cylinders 11 to rotate clockwise and counterclockwise alternately, which in turn causes multiple decomposition blades 12 to rotate, comprehensively decomposing the straw fiber and improving decomposition efficiency. The lower half of the inner wall of the decomposition box 1 is welded with a discharge hopper 25, and a control valve is installed on the discharge hopper 25.

[0026] A collection box 13 is bolted to one side of the outer wall of the decomposition box 1. An air suction machine 14 is bolted to the surface of the collection box 13. The air outlet pipe of the air suction machine 14 extends into the collection box 13, and an air suction pipe 15 is installed at the air inlet end of the air suction machine 14. An air suction hood 16 is fixed to the outside of the air suction pipe 15 and is fixedly connected to the inner wall of the decomposition box 1. An electric telescopic rod 17 is bolted to the surface of the air suction hood 16, and a filter plate 18 is fixed to the output end of the electric telescopic rod 17. The upper and lower outer walls of the air suction hood 16 are provided with slots for the filter plate 18 to move. A filter screen is installed inside the filter plate 18. A scraper 19 is bolted to the bottom wall of the inner cavity of the air suction hood 16. During the decomposition of straw fibers, the air suction machine 14 works and absorbs the dust in the decomposition box 1 through the air suction pipe 15 and the air suction hood 16. In conjunction with the filter plate 18, the dust is filtered to prevent dust from leaking into the air and polluting the environment.

[0027] After the straw fiber decomposition is completed, the filter plate 18 can be moved by the electric telescopic rod 17. At the same time, one end of the filter plate 18 is attached to the scraper 19. The scraper 19 can automatically clean the dust and other impurities on the filter plate 18 to ensure the air circulation effect of the filter plate 18.

[0028] A movable groove is provided on one side of the outer wall of the collection box 13. A collection box 20 is movably connected in the movable groove of the collection box 13. The collection box 20 can collect excess dust and facilitate centralized dust treatment. A positioning sleeve 21 is fixed to one side of the outer wall of the collection box 13 by bolts. A connecting rod 22 is movably connected in the positioning sleeve 21. A limit block 23 is fixed to the bottom of the connecting rod 22 by bolts. The limit block 23 can restrict the position of the collection box 20 and prevent the collection box 20 from moving accidentally. A magnetic block 24 is fixed to the bottom of the positioning sleeve 21 and attracts the limit block 23. Moving the connecting rod 22 upwards causes the magnetic block 24 to attract the limit block 23, making it easy to remove the collection box 20 from the collection box 13. An exhaust pipe is installed on one side of the outer wall of the collection box 13 to ensure the air pressure balance in the collection box 13 when the air suction machine 14 is working.

[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Working principle:

[0032] When using this straw fiber decomposing machine, the straw to be decomposed is fed into the decomposing box 1 through the feed hopper 2. The rotary motor 6 is started, which drives the rotary shaft 7 and the driving bevel gear 8 to rotate. The driving bevel gear 8 drives multiple fixed cylinders 11 to rotate clockwise and counterclockwise alternately through the driven bevel gear 10, thereby causing multiple decomposing blades 12 to rotate and fully decompose the straw fiber. The decomposed straw fiber is discharged from the decomposing box 1 through the discharge hopper 25.

[0033] During the decomposition of straw fibers, the air intake 14 operates and absorbs the dust in the decomposition box 1 through the air intake pipe 15 and the air intake hood 16. It also works with the filter plate 18 to filter the dust, preventing the dust from leaking into the air and polluting the environment. After the straw fiber decomposition is completed, the filter plate 18 is moved by the electric telescopic rod 17. At the same time, one end of the filter plate 18 is attached to the scraper 19. The scraper 19 automatically cleans the dust and other impurities on the filter plate 18 to ensure the ventilation effect of the filter plate 18.

[0034] 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 straw fiber decomposition machine, comprising a decomposition box (1) and a feed hopper (2) fixed to the surface of the decomposition box (1), characterized in that: The back of the disassembly box (1) is equipped with a protective box (5), and a rotary motor (6) is installed on one side of the outer wall of the protective box (5). Multiple rotating shafts (9) are rotatably connected inside the disassembly box (1). A fixed cylinder (11) is fixed on the outer wall of the rotating shaft (9), and multiple disassembly blades (12) are fixed on the outer wall of the fixed cylinder (11). A collection box (13) is installed on one side of the outer wall of the decomposition box (1). An air aspirator (14) is installed on the surface of the collection box (13), and an air inlet pipe (15) is installed on the air inlet end of the air aspirator (14). An air suction hood (16) is fixed to the outside of the air suction pipe (15) and is fixedly connected to the inner wall of the decomposition box (1). An electric telescopic rod (17) is installed on the surface of the air suction hood (16), and a filter plate (18) is fixed to the output end of the electric telescopic rod (17). A scraper (19) is fixed to the bottom wall of the inner cavity of the air suction hood (16).

2. The straw fiber decomposition machine according to claim 1, characterized in that: The output end of the rotary motor (6) is fixed with a rotating shaft (7), and a plurality of driving bevel gears (8) are fixed on the outer wall of the rotating shaft (7). One end of the rotating shaft (9) is fixed with a driven bevel gear (10) that meshes with the driving bevel gears (8).

3. The straw fiber decomposition machine according to claim 1, characterized in that: A movable groove is provided on one side of the outer wall of the collection box (13), and a collection box (20) is movably connected in the movable groove of the collection box (13). A positioning sleeve (21) is fixed on one side of the outer wall of the collection box (13).

4. A straw fiber decomposition machine according to claim 3, characterized in that: A connecting rod (22) is movably connected inside the positioning sleeve (21). A limiting block (23) is fixed at the bottom of the connecting rod (22). A magnetic block (24) that attracts the limiting block (23) is fixed at the bottom of the positioning sleeve (21).

5. A straw fiber decomposition machine according to claim 1, characterized in that: The inner walls of the two sides of the decomposition box (1) are respectively fixed with baffle one (3) and baffle two (4), and the inner wall of the lower half of the decomposition box (1) is fixed with a discharge hopper (25).