Powder powdering and sieving device for solid-state fermentation products
By designing a powder grinding and sieving device, the problems of uneven screening and difficulty in cleaning the device during solid-state fermentation were solved. This enabled uniform and rapid grinding and automatic sieving, improving product purity and consistency, simplifying cleaning and maintenance, and enhancing processing efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI ZHONGXIANG BIOENGINEERING CO LTD
- Filing Date
- 2024-12-30
- Publication Date
- 2026-05-05
AI Technical Summary
Existing grinding equipment lacks an effective screening mechanism during solid-state fermentation, resulting in the finished product containing components of varying coarseness and fineness, which reduces the purity and consistency of the product. Furthermore, the complex structure of the equipment makes it difficult to disassemble and clean, increasing the risk of cross-contamination.
A powder grinding and sieving device was designed, comprising a grinding chamber, a filter media structure, and an opening and closing cover. It adopts a high-efficiency filter media structure and an improved locking method to achieve uniform and rapid grinding and automatic sieving. The sieving structure is easy to disassemble and clean, has strong sealing performance, and allows for flexible adjustment of the sieving size.
It ensures the purity and consistency of finished products, improves processing efficiency and ease of cleaning and maintenance, and guarantees product compatibility and safety.
Smart Images

Figure CN224194849U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solid-state fermentation technology, and in particular to a powder grinding and sieving device for solid-state fermentation products. Background Technology
[0002] In solid-state fermentation, bacteria and other microorganisms grow and multiply on a solid substrate, producing various valuable metabolites. These products usually require further processing to become the final product, such as turning lumpy or granular fermentation products into powder form to improve their solubility, stability, and ease of subsequent use. However, existing pulverizing equipment lacks an effective screening mechanism, failing to remove large particles that do not meet size requirements in a timely manner. This results in the finished product containing components of varying sizes, reducing the purity and consistency of the product. Furthermore, the fixed screening size of the screening structure makes it difficult to flexibly replace; the existing equipment has a complex structure, is not easy to disassemble and clean, increases the workload of daily maintenance, and also increases the risk of cross-contamination.
[0003] To address the aforementioned problems, this invention proposes a novel powder grinding and sieving device for solid-state fermentation products. The aim is to solve existing problems such as poor material uniformity, poor sieving effect, insufficient sealing performance, and inconvenient cleaning and maintenance by optimizing the internal structure of the grinding chamber, introducing a high-efficiency filter media structure, and improving the locking method of the opening and closing lid. This provides a more efficient, reliable, and easy-to-maintain solution. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a powder grinding and sieving device for solid fermentation products, which can uniformly, quickly and stably grind and pulverize powder, automatically sieve, and maintain the purity and consistency of the finished product; the sieving structure is easy to disassemble and clean, and the sieving size can be flexibly adjusted and selected, which not only improves the adaptability of the product, but also facilitates cleaning and maintenance; the device has strong overall sealing, convenient feeding, high grinding and sieving processing efficiency, and strong practicality.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a powder grinding and sieving device for solid fermentation products, including a base, a first mounting seat on the base, a grinding chamber and a drive motor on the first mounting seat, the output end of the drive motor being connected to a rotating shaft disposed in the grinding chamber, the rotating shaft being provided with multiple grinding teeth, a filter material structure that is detachably assembled and disassembled in the grinding chamber, a discharge cylinder at the bottom of the grinding chamber, the grinding chamber and the opening and closing cover being connected by a hinge, the opening and closing cover and the grinding chamber being locked together by a locking structure, the opening and closing cover being provided with a feed pipe, and the feed end of the feed pipe being provided with a sealing structure.
[0006] In a preferred embodiment, the locking structure includes a connecting seat disposed on the outer wall of the pulverizing chamber, the connecting seat being hinged to the bottom of the locking screw, the top of the locking screw being provided with a locking head that engages with its thread, and the locking head engaging with a locking clamp disposed on the opening and closing cover.
[0007] In a preferred embodiment, the closed structure includes a second mounting base disposed on the feed pipe, the second mounting base being hinged to a deflector plate, and the deflector plate being provided with a sealing cover that mates with the port of the feed pipe.
[0008] In a preferred embodiment, the feed pipe is equipped with a storage tray, which is reinforced by a reinforcing plate.
[0009] In a preferred embodiment, the powder grinding chamber is provided with a sealing groove, which cooperates with a sealing strip provided on the opening and closing cover.
[0010] In a preferred embodiment, the filter media structure includes a filter media frame that is installed and fitted with the powdering chamber. The filter media frame is provided with multiple material passages, and each material passage is provided with a limiting installation groove. The limiting installation groove is provided with an inner frame plate, a filter media mesh plate, and an outer plate in sequence from the inside to the outside. The outer plate is provided with multiple material passage holes.
[0011] In a preferred embodiment, the filter media frame is provided with multiple mounting strips, which cooperate with mounting grooves provided on the inner wall of the grinding chamber.
[0012] The powder grinding and sieving device for solid-state fermentation products provided by this utility model has the following beneficial effects by adopting the above-described structure:
[0013] (1) Uniform, rapid and stable grinding and powdering, automatic sieving, maintaining the purity and consistency of finished products;
[0014] (2) The screening structure is easy to disassemble and clean, and the screening size can be flexibly adjusted and selected, which not only improves the adaptability of the product, but also facilitates cleaning and maintenance.
[0015] (3) The device has strong overall sealing, convenient feeding, high grinding and screening processing efficiency, and strong practicality. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 3 This is a schematic diagram of the internal structure of the grinding chamber of this utility model.
[0020] Figure 4 This is a schematic diagram of the filter media structure of this utility model.
[0021] Figure 5 This is a schematic diagram of the opening and closing cover structure of this utility model.
[0022] In the diagram: 1. Base; 2. First mounting seat; 3. Grinding chamber; 4. Drive motor; 5. Rotary shaft; 6. Grinding teeth; 7. Discharge cylinder; 8. Mounting groove; 9. Connecting seat; 10. Locking screw; 11. Locking head; 12. Hinge; 13. Sealing groove; 14. Opening and closing cover; 15. Locking clamp; 16. Sealing strip; 17. Feed pipe; 18. Storage tray; 19. Reinforcing plate; 20. Second mounting seat; 21. Pulley; 22. Sealing cover; 23. Filter frame; 24. Mounting strip; 25. Material passage; 26. Limiting mounting groove; 27. Inner frame plate; 28. Filter mesh plate; 29. Outer plate; 30. Material passage hole. Detailed Implementation
[0023] like Figure 1-5 In the present invention, a powder grinding and sieving device for solid-state fermentation products includes a base 1, a first mounting seat 2 on the base 1, a grinding chamber 3 and a drive motor 4 on the first mounting seat 2, the output end of the drive motor 4 being connected to a rotating shaft 5 disposed in the grinding chamber 3, the rotating shaft 5 being provided with multiple grinding teeth 6, a filter material structure that is detachably assembled and disassembled in the grinding chamber 3, a discharge cylinder 7 at the bottom of the grinding chamber 3, the grinding chamber 3 being connected to an opening and closing cover 14 by a hinge 12, the opening and closing cover 14 being locked to the grinding chamber 3 by a locking structure, the opening and closing cover 14 being provided with a feed pipe 17, and the feed end of the feed pipe 17 being provided with a closed structure.
[0024] In a preferred embodiment, the locking structure includes a connecting seat 9 mounted on the outer wall of the grinding chamber 3. The connecting seat 9 is hinged to the bottom of the locking screw 10. The top of the locking screw 10 is provided with a locking head 11 that engages with its thread. The locking head 11 engages with a locking clamp 15 mounted on the opening / closing cover 14. The closing and locking operation is simple and the locking is reliable.
[0025] In a preferred embodiment, the enclosed structure includes a second mounting base 20 disposed on the feed pipe 17. The second mounting base 20 is hinged to the lever plate 21, and the lever plate 21 is provided with a sealing cover 22 that mates with the port of the feed pipe 17. This provides a good sealing effect, preventing dust from overflowing during the grinding process and reducing pollution to the working environment.
[0026] In a preferred embodiment, the feed pipe 17 is equipped with a storage tray 18, which is reinforced by a reinforcing plate 19. This facilitates material feeding and pre-storage, and provides flexibility and stability.
[0027] In a preferred embodiment, the powder grinding chamber 3 is provided with a sealing groove 13, which cooperates with the sealing strip 16 provided on the opening and closing cover 14. This improves the sealing performance and prevents dust from overflowing.
[0028] In a preferred embodiment, the filter media structure includes a filter media frame 23 that is installed and cooperates with the powdering chamber 3. The filter media frame 23 is provided with multiple material passages 25. Each material passage 25 is provided with a limiting installation groove 26. The limiting installation groove 26 is provided with an inner frame plate 27, a filter media mesh plate 28 and an outer plate 29 from the inside to the outside. The outer plate 29 is provided with multiple material passage holes 30.
[0029] In a preferred embodiment, the filter media frame 23 is provided with multiple mounting strips 24, which cooperate with the mounting grooves 8 provided on the inner wall of the grinding chamber 3. This ensures precise and stable assembly and disassembly, increases the gap between the filter media structure and the inner wall of the grinding chamber 3, facilitates screening and unloading, and enhances practicality.
[0030] The method of using this utility model is as follows:
[0031] Material preparation and feeding:
[0032] The fermented lumpy or granular material is placed in the storage tray 18 and enters the grinding chamber 3 through the feed pipe 17. The closed structure on the feed pipe 17 ensures that it remains sealed when no material is being fed, preventing dust leakage.
[0033] Grinding process:
[0034] When the material enters the grinding chamber 3, the drive motor 4 starts and drives the rotating shaft 5 to rotate. Multiple grinding teeth 6 installed on the rotating shaft 5 rotate at high speed together with the rotating shaft, impacting, shearing and grinding the material falling into the grinding chamber, and quickly crushing large pieces of material into fine powder.
[0035] The grinding chamber 3 is designed with a filter structure inside, which not only provides support but also helps to initially screen out fine powder that meets the requirements, allowing larger particles to continue to be ground.
[0036] Screening process:
[0037] After being crushed, the material passes through the feed inlet 25 in the filter media structure. Small particles pass through the fine pores on the filter media mesh plate 28, while larger particles remain in the grinding chamber for further crushing. The filter media structure consists of an inner frame plate 27, a filter media mesh plate 28, and an outer plate 29, ensuring good filtration performance. These components are also easy to disassemble and clean, facilitating maintenance.
[0038] Sealing and Safety:
[0039] The opening and closing cover 14 is connected to the grinding chamber 3 via a hinge 12 and is securely fixed to the top of the grinding chamber via a locking structure. The sealing strip 16 on the opening and closing cover fits tightly with the sealing groove 13 on the grinding chamber, ensuring no dust leakage during the entire grinding process and improving operational safety.
[0040] Output:
[0041] After thorough crushing and sieving, the qualified powder is finally discharged through the discharge cylinder 7 located at the bottom of the grinding chamber and collected as the finished product.
[0042] Cleaning and maintenance:
[0043] After completing a grinding operation, the opening and closing cover 14 can be opened by unlocking the locking structure to easily remove the filter media structure and other removable components, facilitating thorough cleaning and inspection of the condition of each part of the equipment, and ensuring hygienic conditions for the next batch of production.
[0044] The beneficial effects of this utility model are: uniform, rapid and stable pulverization and powdering, automatic sieving, maintaining the purity and consistency of the finished product; the sieving structure is easy to disassemble and clean, and the sieving size can be flexibly adjusted and selected, which not only improves the adaptability of the product, but also facilitates cleaning and maintenance; the device has strong overall sealing, convenient feeding, high pulverization and sieving processing efficiency, and strong practicality.
Claims
1. A powder grinding and sieving device for solid-state fermentation products, comprising a base (1), characterized in that: The base (1) is provided with a first mounting seat (2), the first mounting seat (2) is provided with a grinding chamber (3) and a drive motor (4), the output end of the drive motor (4) is connected to a rotating shaft (5) provided in the grinding chamber (3), the rotating shaft (5) is provided with multiple grinding teeth (6), the grinding chamber (3) is provided with a filter material structure that is detached and assembled with it, the bottom of the grinding chamber (3) is provided with a discharge cylinder (7), the grinding chamber (3) is connected to the opening and closing cover (14) through a hinge (12), the opening and closing cover (14) and the grinding chamber (3) are locked together through a locking structure, the opening and closing cover (14) is provided with a feed pipe (17), and the feed end of the feed pipe (17) is provided with a closed structure.
2. The powder grinding and sieving device for solid-state fermentation products according to claim 1, characterized in that: The locking structure includes a connecting seat (9) on the outer wall of the powder grinding chamber (3), the connecting seat (9) is hinged to the bottom of the locking screw (10), the top of the locking screw (10) is provided with a locking head (11) that is threadedly engaged with it, and the locking head (11) is engaged with a locking clamp (15) on the opening and closing cover (14).
3. The powder grinding and sieving device for solid-state fermentation products according to claim 1, characterized in that: The closed structure includes a second mounting seat (20) disposed on the feed pipe (17), the second mounting seat (20) being hinged to the dial plate (21), and the dial plate (21) being provided with a closing cover (22) that cooperates with the port of the feed pipe (17).
4. The powder grinding and sieving device for solid-state fermentation products according to claim 1, characterized in that: The feed pipe (17) is provided with a storage tray (18), and the storage tray (18) is reinforced by a reinforcing plate (19).
5. The powder grinding and sieving device for solid-state fermentation products according to claim 1, characterized in that: The powder grinding chamber (3) is provided with a sealing groove (13), which cooperates with the sealing strip (16) provided on the opening and closing cover (14).
6. The powder grinding and sieving device for solid-state fermentation products according to claim 1, characterized in that: The filter media structure includes a filter media frame (23) that is installed and fitted with the powdering chamber (3). The filter media frame (23) is provided with multiple material inlets (25). The material inlets (25) are provided with a limiting installation groove (26). The limiting installation groove (26) is provided with an inner frame plate (27), a filter media mesh plate (28) and an outer plate (29) from the inside to the outside. The outer plate (29) is provided with multiple material passage holes (30).
7. The powder grinding and sieving device for solid-state fermentation products according to claim 6, characterized in that: The filter media frame (23) is provided with multiple mounting strips (24), which are matched with the mounting grooves (8) provided on the inner wall of the powdering chamber (3).