Solid state fermentation tank with ventilation and mechanical turning

By designing a solid fermentation tank with ventilation and mechanical material turning, and using components such as fermentation material plates and stirring scrapers, the problems of uneven material mixing and insufficient ventilation were solved, achieving a highly efficient fermentation process and improving product quality and efficiency.

CN224378037UActive Publication Date: 2026-06-19HUISEN BIOENGINEERING EQUIP ZHENJIANG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUISEN BIOENGINEERING EQUIP ZHENJIANG CO LTD
Filing Date
2025-09-03
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing solid-state fermenters suffer from problems such as uneven mixing, insufficient ventilation and oxygen supply, and the formation of dead zones and temperature gradients when processing high-viscosity and easily agglomerated materials. These issues lead to decreased microbial metabolic activity, prolonged fermentation cycles, and unstable product quality.

Method used

A solid fermentation tank with ventilation and mechanical turning is designed. It uses fermentation material plates and fermentation baffles stacked in layers. Combined with a stirring rod, stirring scraper and a ventilation system, the material is fully mixed and aerated. The stirring motor drives the stirring shaft to rotate the stirring rod and scraper. With the help of transmission gears and gear rings, the uniform mixing and aeration of each layer of fermentation material plate is ensured.

Benefits of technology

It achieves efficient material mixing and aeration, ensuring uniformity and aeration during the fermentation process, enhancing the metabolic activity of microorganisms, shortening the fermentation cycle, and improving the stability of product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a solid fermentation tank with ventilation and mechanical turning, including a tank body. A stirring motor is fixedly installed at the upper end of the tank body. A fermentation material plate is fixedly installed on the inner side of the tank body. A fermentation baffle is fixedly installed on the inner side of the fermentation material plate. A stirring shaft is rotatably installed in the middle of the tank body via a bearing. The upper end of the stirring shaft is fixedly connected to the output shaft of the stirring motor. A stirring main rod is fixedly installed on the outer side of the stirring shaft via a fixing ring. A driven shaft is rotatably installed at one end of the stirring main rod via a bearing. A stirring main frame is fixedly installed at the lower end of the driven shaft. A transmission gear is fixedly installed at the upper end of the driven shaft. Through the designed fermentation material plate and fermentation baffle, the fermentation material plate is stacked in layers inside the tank during use. Each layer is independently turned and stirred in conjunction with the stirring main rod and stirring main frame. The stirring scraper scrapes up the bottom of the fermentation material plate, thereby ensuring more thorough stirring and turning.
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Description

Technical Field

[0001] This utility model belongs to the field of solid fermentation tank technology, specifically relating to a solid fermentation tank with ventilation and mechanical material turning. Background Technology

[0002] Solid-state fermentation is a biological process that utilizes microorganisms to ferment in a solid substrate with virtually no free water. It is widely used in the preparation of organic fertilizers, bio-feed, enzyme preparations, antibiotics, organic acids, and biofuels. As the core equipment in this process, the performance of the solid-state fermentation tank directly affects fermentation efficiency and product quality.

[0003] Currently, most common solid-state fermenters employ static composting or simple mechanical stirring methods, which suffer from problems such as uneven material mixing, insufficient ventilation and oxygen supply, and the formation of dead zones and temperature gradients. Especially when processing high-viscosity, easily agglomerated materials, traditional stirring devices struggle to achieve adequate mixing and aeration, leading to decreased microbial metabolic activity, prolonged fermentation cycles, and unstable product quality. Therefore, it is necessary to design a solid-state fermenter with ventilation and mechanical material turning to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a solid fermentation tank with ventilation and mechanical material turning to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a solid fermentation tank with ventilation and mechanical turning, comprising a tank body, a stirring motor fixedly installed at the upper end of the tank body, a fermentation material plate fixedly installed on the inner side of the tank body, a fermentation baffle fixedly installed on the inner side of the fermentation material plate, a stirring shaft rotatably installed in the middle of the tank body via a bearing, the upper end of the stirring shaft being fixedly connected to the output shaft of the stirring motor, a stirring main rod fixedly installed on the outer side of the stirring shaft via a fixing ring, a driven shaft rotatably installed at one end of the stirring main rod via a bearing, a stirring main frame fixedly installed at the lower end of the driven shaft, a transmission gear fixedly installed at the upper end of the driven shaft, a transmission gear ring fixedly installed on the lower side of the fermentation material plate, the transmission gear meshing with the inner side of the transmission gear ring, and a stirring scraper fixedly installed on the lower side of one end of the stirring main rod corresponding to the position of the stirring main frame.

[0006] Preferably, the mixing frame includes a star-shaped frame, and a mixing rod is fixedly installed on the lower side of the star-shaped frame.

[0007] Preferably, the stirring scraper is U-shaped, and its two legs are fixed to the stirring main rod.

[0008] Preferably, the outer side of the tank is provided with an inlet and outlet, and the position of the inlet and outlet corresponds to the position of the fermentation material plate.

[0009] Preferably, the lower end of the tank is provided with a base, the surface of the base is provided with a vent, the inner side of the stirring shaft is provided with a hollow structure, and the stirring shaft is connected to the position of the fermentation material plate through the fixed ring and the built-in pipe of the stirring main rod. The inner side of the base is equipped with a ventilation fan and a ventilation seat, and the ventilation fan is connected to the inside of the stirring shaft through the ventilation seat.

[0010] Preferably, a vent valve is provided on the outside of the vent seat, and the vent seat is connected to the vent fan through the vent valve.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. Through the design of the fermentation material plate and fermentation baffle, the fermentation material plate is stacked in layers in the base during use, and each layer is independently turned over with the main stirring rod and stirring frame, and the bottom of the fermentation material plate is scooped up with the stirring scraper, so as to ensure more thorough mixing and turning of the material.

[0013] 2. Through the designed base and stirring rod, the vent seat in the base is connected to the stirring rod through the stirring shaft during use. A vent is set on the lower side of one end of the stirring rod corresponding to the stirring frame, so that each layer of fermentation material can be accurately ventilated, ensuring convenient ventilation during fermentation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the stirring structure of this utility model;

[0017] In the diagram: 1. Base; 2. Tank body; 3. Stirring motor; 4. Inlet / outlet; 5. Vent; 6. Fermentation material plate; 7. Fermentation baffle; 8. Stirring rod; 9. Stirring frame; 10. Stirring scraper; 11. Driven shaft; 12. Transmission gear; 13. Transmission gear ring; 14. Stirring shaft; 15. Ventilation fan; 16. Ventilation seat; 17. Fixing ring. Detailed Implementation

[0018] 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.

[0019] Example 1: Please refer to Figures 1 to 3 This utility model provides a technical solution: a solid fermentation tank with ventilation and mechanical turning, including a tank body 2. A stirring motor 3 is fixedly installed at the upper end of the tank body 2. A fermentation material plate 6 is fixedly installed on the inner side of the tank body 2. A fermentation baffle 7 is fixedly installed on the inner side of the fermentation material plate 6. A stirring shaft 14 is rotatably installed in the middle of the tank body 2 via a bearing. The upper end of the stirring shaft 14 is fixedly connected to the output shaft of the stirring motor 3. A stirring main rod 8 is fixedly installed on the outer side of the stirring shaft 14 via a fixing ring 17. A driven shaft 11 is rotatably installed at one end of the stirring main rod 8 via a bearing. The stirring shaft 14 is driven by the stirring motor 3. The stirring shaft 14 rotates, driving the stirring rod 8 and the stirring scraper 10 to rotate and scrape and stir the put-in material. The stirring rod 9 is fixedly installed at the lower end of the driven shaft 11, and the transmission gear 12 is fixedly installed at the upper end of the driven shaft 11. The transmission gear ring 13 is fixedly installed on the lower side of the fermentation plate 6. The transmission gear 12 meshes with the transmission gear ring 13. The stirring scraper 10 is fixedly installed on the lower side of one end of the stirring rod 8 corresponding to the position of the stirring rod 9. With the meshing transmission of the transmission gear ring 13 and the transmission gear 12, the driven shaft 11 and the stirring rod 9 are driven to rotate and stir, thereby improving the stirring effect of the material.

[0020] Further reading is available. Figures 1 to 3 The mixing frame 9 includes a star-shaped frame, and a mixing rod is fixedly installed on the lower side of the star-shaped frame, which facilitates the installation and use of the mixing frame 9 for mixing. The mixing scraper 10 is U-shaped, and the two legs of the mixing scraper 10 are fixed on the mixing frame 8, which facilitates the scraper 10 to scrape the fermented material on the fermentation plate 6, thereby facilitating mixing. The outer side of the tank body 2 is provided with an inlet and outlet 4, and the position of the inlet and outlet 4 corresponds to the position of the fermentation plate 6, which facilitates the cleaning or addition of fermented material on the fermentation plate 6 during use.

[0021] As can be seen from the above description, this utility model has the following beneficial effects: when in use, the fermentation material plate 6 is stacked in layers inside the base 1, and each layer is independently turned over with the main stirring rod 8 and the main stirring frame 9, and the bottom of the fermentation material plate 6 is scooped up with the stirring scraper 10, so as to ensure more thorough stirring and turning of the material.

[0022] Example 2: Please refer to Figures 1 to 3As shown, based on Embodiment 1, this utility model provides a technical solution: a base 1 is provided at the lower end of the tank 2, and a vent 5 is provided on the surface of the base 1 to facilitate ventilation and gas replenishment. A hollow structure is provided on the inner side of the stirring shaft 14, and the stirring shaft 14 is connected to the position of the fermentation material plate 6 through the internal pipe of the fixing ring 17 and the stirring main rod 8. A ventilation fan 15 and a ventilation seat 16 are installed on the inner side of the base 1. The ventilation fan 15 is connected to the inside of the stirring shaft 14 through the ventilation seat 16. As needed, air is supplied to the stirring shaft 14 through the ventilation fan 15 and the ventilation seat 16. Air is directly introduced into the position of the fermentation material plate 6 through the internal channel of the fixing ring 17 and the stirring main rod 8. A ventilation valve is provided on the outer side of the ventilation seat 16. The ventilation seat 16 is connected to the ventilation fan 15 through the ventilation valve. During use, multiple ventilation fans 15 can be used to extract or exhaust air or replenish gas as needed, thereby facilitating aerobic fermentation of the internal fermentation material.

[0023] Using the above technical solution, when in use, the vent seat 16 in the base 1 is connected to the stirring main rod 8 through the stirring shaft 14. A vent is provided on the lower side of one end of the stirring main rod 8 corresponding to the stirring main frame 9, so that each layer of fermentation material plate 6 can be accurately ventilated, ensuring convenient ventilation during fermentation.

[0024] The working principle and usage process of this utility model are as follows: During use, the fermentation material is placed on the fermentation material plate 6 through the inlet / outlet 4. The stirring motor 3 drives the stirring shaft 14 to rotate, which in turn drives the stirring main rod 8 and the stirring scraper 10 to rotate and scrape and stir the material. At the same time, the meshing transmission gear ring 13 and the transmission gear 12 drive the driven shaft 11 and the stirring main frame 9 to rotate and stir, thereby improving the stirring effect of the material. The layered structure of the fermentation material plate 6 makes stirring easier and more convenient, resulting in higher stirring efficiency. During fermentation, air can be supplied to the stirring shaft 14 through the ventilation fan 15 and the ventilation seat 16 as needed. Air is directly introduced into the fermentation material plate 6 through the fixed ring 17 and the built-in channel of the stirring main rod 8, which, together with the stirring, ensures that the fermentation material and air are in full contact.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A solid fermentation tank with ventilation and mechanical turning, comprising a tank body (2), characterized in that: A stirring motor (3) is fixedly installed at the upper end of the tank (2). A fermentation material plate (6) is fixedly installed on the inner side of the tank (2). A fermentation baffle (7) is fixedly installed on the inner side of the fermentation material plate (6). A stirring shaft (14) is rotatably installed in the middle of the tank (2) via a bearing. The upper end of the stirring shaft (14) is fixedly connected to the output shaft of the stirring motor (3). A stirring main rod (8) is fixedly installed on the outer side of the stirring shaft (14) via a fixing ring (17). (8) has a driven shaft (11) rotatably mounted on one end via a bearing. The driven shaft (11) has a stirring frame (9) fixedly mounted on its lower end. The driven shaft (11) has a transmission gear (12) fixedly mounted on its upper end. The fermentation material plate (6) has a transmission gear ring (13) fixedly mounted on its lower side. The transmission gear (12) meshes with the transmission gear ring (13) on its inner side. The stirring scraper (10) is fixedly mounted on the lower side of one end of the stirring rod (8) at the position corresponding to the stirring frame (9).

2. A solid-state fermentation tank with ventilation and mechanical turning as described in claim 1, characterized in that: The mixing frame (9) includes a star-shaped frame, and a mixing rod is fixedly installed on the lower side of the star-shaped frame.

3. A solid-state fermentation tank with ventilation and mechanical turning as described in claim 1, characterized in that: The stirring scraper (10) is U-shaped, and its two legs are fixed on the stirring main rod (8).

4. A solid-state fermentation tank with ventilation and mechanical turning as described in claim 1, characterized in that: The tank (2) is provided with an inlet and outlet (4) on the outside, and the position of the inlet and outlet (4) corresponds to the position of the fermentation plate (6).

5. A solid-state fermentation tank with ventilation and mechanical turning as described in claim 1, characterized in that: The lower end of the tank (2) is provided with a base (1), the surface of the base (1) is provided with a vent (5), the inner side of the stirring shaft (14) is provided with a hollow structure, and the stirring shaft (14) is connected to the fermentation material plate (6) through the fixed ring (17) and the built-in pipe of the stirring main rod (8). The inner side of the base (1) is equipped with a ventilation fan (15) and a ventilation seat (16), and the ventilation fan (15) is connected to the inside of the stirring shaft (14) through the ventilation seat (16).

6. A solid-state fermentation tank with ventilation and mechanical turning as described in claim 5, characterized in that: A ventilation valve is provided on the outside of the ventilation seat (16), and the ventilation seat (16) is connected to the ventilation fan (15) through the ventilation valve.