Double-screw vertical solid-state fermentation tank
The design of the double-ribbon vertical solid fermentation tank solves the problems of internal wall cleaning and uneven material mixing, achieving uniform material distribution and convenient discharge, thus improving production efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU SANGAO BIOTECHNOLOGY ENG EQUIP CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-03
AI Technical Summary
Existing solid fermentation tanks are difficult to clean on their inner walls, which leads to material adhesion, uneven mixing, and heavy discharge, thus affecting production efficiency.
It adopts a double-screw vertical structure, including a rotating rod, mounting plate, side scraper and mixing auger. The internal wall cleaning and material turning are achieved through gear and gear ring meshing. Combined with the auger blade design, it can achieve uniform mixing of materials and convenient discharge.
It effectively reduces the adhesion and accumulation of materials on the tank wall, ensures uniform material distribution, improves mixing efficiency, simplifies the discharge process, reduces labor intensity, and achieves stable and continuous production.
Smart Images

Figure CN224450676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a solid fermentation tank, specifically a double-ribbon vertical solid fermentation tank, and belongs to the field of fermentation tank technology. Background Technology
[0002] Currently, in conventional solid fermentation tank systems, production-type solid fermentation tanks have large working volumes and high production capacities, and a single spiral ribbon is no longer sufficient to turn all the materials upwards. At the same time, due to the large volume of material being discharged, manual discharge brings a heavy workload and is also slow, making it difficult to achieve stable and continuous solid fermentation production.
[0003] Chinese patent application publication number CN205361172U discloses a double-ribbon vertical solid fermentation tank suitable for large-scale production. The tank includes a tank body, a vertically mounted stirring shaft within the tank body, and a motor mounted on the tank body to drive the stirring shaft. The stirring shaft within the tank body has a first stirring blade and a second stirring blade arranged spirally from bottom to top. A discharge port is located at the bottom of the tank body, and a discharge mechanism located below the discharge port to transport the material discharged from the port to the outside of the tank body. This invention enables thorough and uniform mixing of solid fermentation materials, separates excess moisture from the materials, and facilitates convenient and quick discharge, saving time and labor. Its widespread application will generate significant economic and social benefits.
[0004] While the aforementioned patented solution enables the solid fermentation material to be fully and evenly mixed, it makes it difficult to clean the inner wall of the fermentation tank, causing the solid fermentation material to easily adhere to the inner wall of the fermentation tank, resulting in uneven mixing.
[0005] Therefore, the double-ribbon vertical solid fermenter is proposed here. Utility Model Content
[0006] This invention proposes a double-spiral vertical solid fermentation tank to solve the problem in the prior art that it is difficult to clean the inner wall of the fermentation tank, which makes the solid fermentation material easy to adhere to the inner wall of the fermentation tank, resulting in uneven mixing.
[0007] This utility model is achieved through the following technical solution: a double-ribbon vertical solid fermentation tank, including a tank body and a mixing component installed inside the tank body. An auxiliary component is also provided inside the tank body. The auxiliary component is installed on the mixing component and rotates synchronously with the mixing component.
[0008] The mixing component includes a motor fixed to the surface of the tank, and a rotating rod is fixed to the output end of the motor. The auxiliary component includes a mounting plate fixed to the surface of the rotating rod. A fermentation chamber is opened inside the tank. A side scraper is fixed to the lower surface of the mounting plate and the side scraper is in contact with the inner wall of the fermentation chamber.
[0009] Furthermore, a support plate is installed on the surface of the side scraper, and a mixing auger is connected to the upper surface of the support plate. The upper end of the mixing auger passes through the mounting plate, and a gear is fixed to the upper end of the mixing auger. An annular fixing plate is fixed to the top wall of the fermentation chamber, and a toothed ring is embedded on the surface of the annular fixing plate. The gear and the toothed ring mesh with each other.
[0010] Furthermore, the rotating rod is symmetrically equipped with a first spiral ribbon and a second spiral ribbon, the bottom of the tank is tubular, the lower end of the rotating rod is rotatably connected to the bottom wall of the tank, and the rotation direction of the first spiral ribbon and the second spiral ribbon is opposite to the rotation direction of the mixing auger.
[0011] Furthermore, the rotating rod surface is also fixed with auger blades, which are in contact with the tubular bottom of the tank. The side of the tank is provided with a discharge port, and the auger blades are located below the first and second spiral ribbons. The diameter of the auger blades is smaller than that of the first and second spiral ribbons.
[0012] Furthermore, a protective plate is fixed to the upper surface of the mounting plate. The protective plate is located outside the gear and the annular fixing plate, and the upper surface of the protective plate is in contact with the top wall of the fermentation chamber. A slider is also fixed to the side of the mounting plate. A groove corresponding to the slider is opened on the inner wall of the fermentation chamber, and the slider moves inside the groove.
[0013] Furthermore, a feed pipe is installed on the upper surface of the tank, and a receiving plate is fixed on the side of the bottom of the tank, with the position of the receiving plate corresponding to the discharge port.
[0014] This utility model provides a double-ribbon vertical solid fermentation tank, which has the following beneficial effects:
[0015] This double-ribbon vertical solid fermentation tank, through the mounting plate installed on the surface of the rotating rod and the side scraper fixed to the lower surface of the mounting plate, can clean the inner wall of the fermentation chamber during the rotation of the rotating rod, reducing the adhesion and accumulation of solid materials on the tank wall, reducing the risk of uneven distribution of fermentation materials, and thus improving the fermentation effect. At the same time, the mixing auger connected to the side scraper, with the cooperation of gears and gear rings, can rotate on its own axis while following the revolution of the side scraper, so that the material generates a complex flow path in the tank, preventing the formation of mixing dead zones and promoting the overall stirring and flow of materials.
[0016] This double-ribbon vertical solid fermentation tank ensures that materials are fully stirred and agitated in a large-capacity environment by installing a first and a second ribbon on a rotating rod, solving the problem that a single ribbon cannot meet the stirring requirements. At the same time, a tubular structure is set at the bottom of the tank, and a rotating rod with auger blades is installed inside it. The auger blades are made to fit in close contact with the bottom of the tank. During the mixing process, the auger blades only need to be rotated in the upward feeding direction to prevent the solid fermentation material from leaking out. When discharging, the auger blades only need to be rotated in the downward feeding direction to discharge the solid fermentation material from the discharge port, reducing the heavy labor of manual loading and unloading. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a front sectional view of the present invention.
[0019] Figure 3 This is a detailed structural diagram of the hybrid component and auxiliary component in this utility model;
[0020] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0021] Explanation of reference numerals in the attached figures
[0022] 1. Tank body; 101. Fermentation chamber; 102. Discharge port; 103. Annular fixing plate; 104. Slide chute;
[0023] 2. Mixing assembly; 201. Motor; 202. Rotating rod; 203. First helical ribbon; 204. Second helical ribbon; 205. Screwdriver blade;
[0024] 3. Auxiliary components; 301. Mounting plate; 302. Side scraper; 3021. Support plate; 303. Mixing auger; 304. Gear; 305. Protective plate; 306. Slider;
[0025] 4. Feed pipe; 5. Receiving plate. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.
[0027] Please see Figures 1-4The present invention proposes the following implementation scheme: a double-ribbon vertical solid fermentation tank, including a tank body 1 and a mixing component 2 installed inside the tank body 1. An auxiliary component 3 is also provided inside the tank body 1. The auxiliary component 3 is installed on the mixing component 2 and rotates synchronously with the mixing component 2.
[0028] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 The mixing component 2 includes a motor 201 fixed to the surface of the tank 1, and a rotating rod 202 fixed to the output end of the motor 201. The auxiliary component 3 includes a mounting plate 301 fixed to the surface of the rotating rod 202. A fermentation chamber 101 is provided inside the tank 1. A side scraper 302 is fixed to the lower surface of the mounting plate 301, and the side scraper 302 is in contact with the inner wall of the fermentation chamber 101. A support plate 3021 is installed on the surface of the side scraper 302, and a mixing auger 303 is connected to the upper surface of the support plate 3021. The upper end of the mixing auger 303 passes through the mounting plate 301, and a gear 304 is fixed to the upper end of the mixing auger 303. An annular fixing plate 103 is fixed to the top wall of the fermentation chamber 101, and a toothed ring is embedded on the surface of the annular fixing plate 103. The gear 304 and the toothed ring mesh with each other. A protective plate 305 is fixed to the upper surface of the mounting plate 301. The protective plate 305 is located outside the gear 304 and the annular fixing plate 103, and the protective plate 305 is located outside the gear 304 and the annular fixing plate 103. 5. The upper surface is in contact with the top wall of the fermentation chamber 101. A slider 306 is also fixed on the side of the mounting plate 301. The inner wall of the fermentation chamber 101 is provided with a groove 104 corresponding to the slider 306. The slider 306 moves inside the groove 104. The double-ribbon vertical solid fermentation tank can clean the inner wall of the fermentation chamber 101 during the rotation of the rotating rod 202 by the mounting plate 301 installed on the surface of the rotating rod 202 and the side scraper 302 fixed on the lower surface of the mounting plate 301. This reduces the adhesion and accumulation of solid materials on the tank wall, reduces the risk of uneven distribution of fermentation materials, and thus improves the fermentation effect. At the same time, the mixing auger 303 connected to the side scraper 302 can rotate on its own axis while following the revolution of the side scraper 302 with the cooperation of the gear 304 and the gear ring. This makes the material generate a complex flow path in the tank, prevents the formation of mixing dead corners, and promotes the overall stirring and flow of the material.
[0029] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3The rotating rod 202 has a first spiral ribbon 203 and a second spiral ribbon 204 symmetrically mounted on its surface. The bottom of the tank 1 is tubular. The lower end of the rotating rod 202 is rotatably connected to the bottom wall of the tank 1. The rotation direction of the first spiral ribbon 203 and the second spiral ribbon 204 is opposite to the rotation direction of the mixing auger 303. An auger blade 205 is also fixed to the surface of the rotating rod 202. The auger blade 205 fits against the tubular bottom of the tank 1. A discharge port 102 is provided on the side of the tank 1. The auger blade 205 is positioned below the first spiral ribbon 203 and the second spiral ribbon 204, and the diameter of the auger blade 205 is smaller than that of the first spiral ribbon 203 and the second spiral ribbon 204. This double-spiked vertical solid fermentation tank, through rotation... A first spiral ribbon 203 and a second spiral ribbon 204 are installed on the rod 202 to ensure that the material is fully stirred and turned in a large-capacity environment, solving the problem that a single spiral ribbon cannot meet the stirring requirements. At the same time, a tubular structure is set at the bottom of the tank 1, and a rotating rod 202 with auger blades 205 is installed inside it. The auger blades 205 are made to fit against the bottom of the tank 1. During the mixing process, the auger blades 205 only need to be rotated in the upward feeding direction to prevent the solid fermentation material from leaking out. When discharging, the auger blades 205 only need to be rotated in the downward feeding direction to discharge the solid fermentation material from the discharge port, reducing the heavy labor of manual loading and unloading.
[0030] Please refer to this carefully. Figure 1 and Figure 2 A feed pipe 4 is installed on the upper surface of the tank body 1, and a receiving plate 5 is fixed on the side of the bottom of the tank body 1. The position of the receiving plate 5 corresponds to the discharge port.
[0031] In use, this invention is as follows: First, the device is placed in a designated location and connected to an external control device and power supply. The control device can be a conventional known device such as a computer. Then, the operator controls the motor 201 via the control device. The motor 201 drives the rotating rod 202 to rotate, which in turn drives the mounting plate 301 fixed on its surface to rotate. This allows the solid fermentation material to be poured from the feed pipe 4 into the fermentation chamber 101, preventing the solid fermentation material from falling onto the mounting plate 301 and affecting the gear 304 and gear ring. Subsequently, the rotating rod 202 is controlled to rotate in the forward direction, ensuring that the auger blades 205 maintain an upward feeding direction, thereby allowing the fermentation chamber 101 to rotate. The material at the bottom of tank 101 can be mixed with the material on the upper layer of fermentation chamber 101 without leaking out from the discharge port at the bottom of tank 1. At the same time, the rotating rod 202 can drive the mounting plate 301 and the side scraper 302 fixed on the lower surface of the mounting plate 301 to rotate synchronously, so that the side scraper 302 can clean the inner wall of fermentation chamber 101. Meanwhile, the side scraper 302 can drive the mixing auger 303 rotatably connected to its surface to rotate. Since the gear 304 can mesh with the toothed ring embedded on the surface of the annular fixed plate 103, the mixing auger 303 can rotate on its own axis while following the revolution of the side scraper 302, so that the material generates a complex flow path in the tank.
[0032] When discharge is required, simply control the rotating rod 202 to reverse, so that the auger blades 205 rotate in the downward feeding direction, and the internal solid fermented material can be discharged from the discharge port.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A double-screw vertical solid fermentation tank, comprising a tank body (1) and a mixing assembly (2) installed inside the tank body (1), characterized in that: The tank (1) is also provided with an auxiliary component (3), which is installed on the mixing component (2) and rotates synchronously with the mixing component (2); The mixing component (2) includes a motor (201) fixed on the surface of the tank (1), and a rotating rod (202) is fixed at the output end of the motor (201). The auxiliary component (3) includes a mounting plate (301) fixed on the surface of the rotating rod (202). A fermentation chamber (101) is provided inside the tank (1). A side scraper (302) is fixed on the lower surface of the mounting plate (301). The side scraper (302) is in contact with the inner wall of the fermentation chamber (101).
2. The twin-screw vertical solid state fermenter according to claim 1, wherein: A support plate (3021) is installed on the surface of the side scraper (302). A mixing auger (303) is connected to the upper surface of the support plate (3021). The upper end of the mixing auger (303) passes through the mounting plate (301), and a gear (304) is fixed to the upper end of the mixing auger (303). An annular fixing plate (103) is fixed to the top wall of the fermentation chamber (101). A toothed ring is embedded on the surface of the annular fixing plate (103), and the gear (304) and the toothed ring mesh with each other.
3. The twin-screw vertical solid state fermentation tank according to claim 2, characterized in that: The rotating rod (202) is symmetrically equipped with a first spiral ribbon (203) and a second spiral ribbon (204). The bottom of the tank (1) is tubular. The lower end of the rotating rod (202) is rotatably connected to the bottom wall of the tank (1). The rotation direction of the first spiral ribbon (203) and the second spiral ribbon (204) is opposite to the rotation direction of the mixing auger (303).
4. The twin-screw vertical solid state fermenter according to claim 1, wherein: The rotating rod (202) is also fixed with an auger blade (205). The auger blade (205) is in contact with the tubular bottom of the tank (1). The tank (1) has a discharge port (102) on its side. The auger blade (205) is located below the first spiral ribbon (203) and the second spiral ribbon (204). The diameter of the auger blade (205) is smaller than that of the first spiral ribbon (203) and the second spiral ribbon (204).
5. The twin-screw vertical solid state fermentation tank according to claim 2, characterized in that: A protective plate (305) is fixed on the upper surface of the mounting plate (301). The protective plate (305) is located outside the gear (304) and the annular fixing plate (103). The upper surface of the protective plate (305) is in contact with the top wall of the fermentation chamber (101). A slider (306) is also fixed on the side of the mounting plate (301). A groove (104) corresponding to the slider (306) is opened on the inner wall of the fermentation chamber (101). The slider (306) moves inside the groove (104).
6. The twin-screw vertical solid state fermentation tank according to claim 1, characterized in that: The upper surface of the tank (1) is equipped with a feed pipe (4), and the side of the bottom of the tank (1) is fixed with a receiving plate (5), the position of which corresponds to the discharge port.