Solid substrate fermentation device

Abstract

The utility model discloses a solid matrix fermentation device, which relates to the technical field of fermentation tanks, and comprises a base, the upper side of the base is fixedly connected with a rotary drum, the inner side of the rotary drum is rotatably connected with a cross-flow wind wheel, one side of the rotary drum is fixedly connected with a feed pipe, and one side of the feed pipe far away from the rotary drum is fixedly connected with a fixed outer seat. By the adoption of the structure, the blocking net can filter out large impurities such as dust and insects in air and prevent the large impurities from entering the fermentation tank, polluting fermentation substrates and affecting the fermentation quality, the waterproof breathable film can prevent external humid air from entering the fermentation tank, the dry environment in the fermentation tank is kept, and the waterproof breathable film is particularly important for the fermentation process. As the humid environment may cause out-of-control growth of microorganisms and influence the quality and stability of fermentation products, the waterproof breathable film can block humid air and allow air circulation at the same time, thereby being beneficial to keeping air pressure balance in the fermentation tank.

Description

Technical Field

[0001] This utility model belongs to the field of fermentation tank technology, and specifically relates to a solid substrate fermentation device. Background Technology

[0002] In the field of agricultural planting, substrate trays are a key carrier for crop germination and seedling cultivation. Their quality directly affects the growth status and final yield of crops. The production of traditional substrate trays often relies on natural resources such as soil or peat. However, the extraction of these resources is not only costly but may also damage the environment. With the increasing awareness of environmental protection and the demand for sustainable agricultural development, finding a renewable, environmentally friendly and low-cost raw material for substrate tray production has become a hot topic in the industry. Currently, straw can be crushed to make substrate trays for agricultural planting and germination. The straw is crushed to make its particle size suitable for microbial attachment and growth. The crushed straw is mixed evenly with an appropriate amount of microbial inoculant and placed in a solid substrate fermentation device for fermentation.

[0003] For example, Chinese patent CN108192812B discloses a solid substrate fermentation device, including a rotating drum, a rotating drum base, a cross-flow impeller, a fermentation tank, and a feed hose. The outer wall of the rotating drum is provided with an inlet pipe and an outlet pipe that communicate with the inside of the rotating drum. The outlet port of the outlet pipe is connected to the fermentation tank through the feed hose. The rotating drum is rotatably mounted on the rotating drum base, and the cross-flow impeller is rotatably disposed inside the rotating drum. The central axis of the cross-flow impeller overlaps with the central axis of the rotating drum.

[0004] The aforementioned patent addresses the problems in existing solid-matrix fermentation devices, such as the difficulty in mass transfer through stirring and the inability to achieve uniform material addition during fermentation. However, some shortcomings still require improvement. During operation, the cross-flow fan exhausts air from the fermenter, feed hose, and rotating drum through the feed pipe, preventing the entry of external air. However, the feed pipe's structural design is relatively simple. This simple design lacks necessary shielding structures during operation. The cross-flow fan generates a strong airflow during operation. While this airflow helps to expel internal air, it may also create a negative pressure area at the feed pipe. This negative pressure area may attract external humid air and impurities into the feed pipe, potentially causing adverse effects on the fermentation process. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a solid substrate fermentation device to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A solid substrate fermentation device includes a base, a rotating drum fixedly connected to the upper side of the base, a cross-flow fan rotatably connected to the inner side of the rotating drum, a feed pipe fixedly connected to one side of the rotating drum, a fixed outer seat fixedly connected to the side of the feed pipe away from the rotating drum, a fixed inner seat fixedly connected inside the fixed outer seat, one side of the fixed inner seat being fitted and connected to one side of the feed pipe, an installation component provided on one side of the fixed inner seat, a baffle installed on one side of the installation component, and a waterproof and breathable membrane installed on the other side of the installation component, both the baffle and the waterproof and breathable membrane being located inside the fixed inner seat, fixing components provided on both sides of the fixed outer seat, and pushing components provided on both sides of one end of the fixed inner seat, a discharge pipe fixedly connected to the side of the rotating drum away from the feed pipe, and a fermentation tank connected to one side of the discharge pipe via a flexible hose;

[0008] The installation assembly includes an installation plate, on which the baffle and the waterproof and breathable membrane are both connected. A fitting groove is provided on one side of the installation plate, and one side of the pushing assembly is movably connected to the fitting groove. A positioning groove is provided on the other side of the installation plate, and one side of the fixing assembly is movably connected to the positioning groove.

[0009] As a preferred technical solution, grooves are provided on both sides of the mounting plate, and the grooves are located inside the fixed outer base.

[0010] As a preferred technical solution, the fixing component includes an assembly block, which is fixedly connected to both sides of the fixing outer seat. A screw is rotatably connected inside the assembly block, and a torsion wheel is fixedly connected to one side of the screw extending out of the assembly block. A positioning block is threadedly connected to the outer surface of the screw, and the positioning block is slidably connected inside the assembly block. One side of the positioning block is movably connected to a positioning groove. Guide grooves are provided on both sides of the interior of the assembly block, and one side of the positioning block is slidably connected to the guide groove.

[0011] As a preferred technical solution, a feeding hopper is fixedly connected to the side of the fixed outer seat away from the feed pipe, and the side of the feeding hopper extending into the fixed outer seat is fixedly connected to one side of the fixed inner seat.

[0012] As a preferred technical solution, a first flange is fixedly connected to one side of the feed pipe, and a second flange is fixedly connected to one side of the fixed outer seat. The first flange is fixedly connected to the second flange by fixing bolts.

[0013] As a preferred technical solution, the pushing component includes a mounting groove, which is formed on both sides of one end of the fixed inner seat. A spring is fixedly connected inside the mounting groove. A push block is fixedly connected to one side of the spring. One side of the push block is movably connected to one side of the fitting groove. A slide rod is fixedly connected to the side of the push block near the spring. One side of the slide rod is slidably connected inside the mounting groove.

[0014] In summary, the present invention has the following main advantages:

[0015] First, this utility model involves installing a fixed outer seat on the feed pipe, with a fixed inner seat installed inside the fixed outer seat. The fixed inner seat is connected to the feed pipe, and a baffle and a waterproof and breathable membrane are connected inside the fixed inner seat via an installation component. The baffle can filter out larger impurities in the air, such as dust and insects, preventing them from entering the fermenter, contaminating the fermentation substrate, and affecting the fermentation quality. The waterproof and breathable membrane can block the entry of external humid air and maintain a dry environment inside the fermenter, which is particularly important for the fermentation process because a humid environment may cause microbial growth to become uncontrolled, affecting the quality and stability of the fermentation product. While blocking humid air, the waterproof and breathable membrane can also allow air circulation, which helps to maintain the air pressure balance inside the fermenter.

[0016] Secondly, this utility model, by installing a fixing component on a fixed outer seat and a pushing component on a fixed inner seat, allows for quick disassembly and removal of the mounting component when the baffle and waterproof breathable membrane need to be replaced. This enables rapid replacement of the baffle and waterproof breathable membrane, which not only improves work efficiency but also reduces downtime caused by the cumbersome replacement process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the fixed outer seat of this utility model;

[0019] Figure 3 This is a utility model Figure 2 A magnified structural diagram at point A;

[0020] Figure 4 This is a schematic diagram of one side of the mounting plate of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure between the fixed outer seat and the feed pipe of this utility model.

[0022] Reference numerals: 1. Base; 2. Rotary drum; 3. Cross-flow impeller; 4. Feed pipe; 5. Fermentation tank; 6. Hose; 7. Discharge pipe; 8. Fixed outer seat; 9. Feed hopper; 10. Fixed inner seat; 11. Baffle net; 12. Waterproof and breathable membrane; 13. Mounting assembly; 131. Mounting plate; 132. Fitting groove; 133. Positioning groove; 134. Groove; 14. Fixing assembly; 141. Assembly block; 142. Screw; 143. Positioning block; 144. Torsion wheel; 145. Guide groove; 15. Pushing assembly; 151. Mounting groove; 152. Slide rod; 153. Spring; 154. Push block; 17. First flange; 18. Second flange; 19. Fixing bolt. Detailed Implementation

[0023] Example

[0024] refer to Figures 1 to 5The solid substrate fermentation device described in this embodiment includes a base 1. A rotating cylinder 2 is fixedly connected to the upper side of the base 1. A cross-flow impeller 3 is rotatably connected to the inner side of the rotating cylinder 2. The cross-flow impeller 3 rotates on the rotating cylinder 2 via a driving device. A feed pipe 4 is fixedly connected to one side of the rotating cylinder 2. A fixed outer seat 8 is fixedly connected to the side of the feed pipe 4 away from the rotating cylinder 2. A fixed inner seat 10 is fixedly connected inside the fixed outer seat 8. One side of the fixed inner seat 10 is fixedly connected to one side of the feed pipe 4. One side of the fixed inner seat 10 is provided with an installation component 13, on one side of which a baffle 11 is installed, and on the other side of which a waterproof and breathable membrane 12 is installed. Both the baffle 11 and the waterproof and breathable membrane 12 are located inside the fixed inner seat 10. Both sides of the fixed outer seat 8 are provided with fixing components 14, and both sides of one end of the fixed inner seat 10 are provided with pushing components 15. The side of the rotating drum 2 away from the feed pipe 4 is fixedly connected to the discharge pipe 7, and one side of the discharge pipe 7 is connected to the fermentation tank 5 through a flexible hose 6. A cross-flow impeller is also provided. During rotation, the fan blades expel air from the fermenter 5, the feed hose 6, and the rotating drum 2 through the feed pipe 4, preventing the entry of external air and avoiding contamination from external bacteria entering the fermenter 5 with the airflow. Simultaneously, the cross-flow fan 3 mixes the solid substrate and the microbial mixture evenly. It should be noted that this device also has other structures consistent with the referenced documents; the specific principles are not repeated here. The mounting component 13 includes a mounting plate 131, with the baffle 11 and the waterproof and breathable membrane 12 both connected to the mounting plate 131. A fitting groove 132 is provided on one side of the mounting plate 131, and one side of the pushing component 15 is movably connected to the fitting groove 132. A positioning groove 133 is provided on the other side of the mounting plate 131, and one side of the fixing component 14 is movably connected to the positioning groove 133. By blocking the entry of impurities and humid air, the purity and stability of the fermentation substrate can be ensured, thereby improving fermentation efficiency and quality. Simultaneously, a stable fermentation environment also contributes to the normal growth and metabolic activities of microorganisms, further enhancing the quality of the fermentation products.

[0025] refer to Figure 4 The mounting plate 131 has grooves 134 on both sides, and the grooves 134 are located inside the fixed outer seat 8. By opening grooves 134 on the mounting plate 131, when the mounting plate 131 extends out of the fixed outer seat 8, it is convenient for the staff to remove the net 11 and the waterproof and breathable membrane 12 from the fixed inner seat 10.

[0026] refer to Figure 3The fixing component 14 includes an assembly block 141, which is fixedly connected to both sides of the fixing outer seat 8. A screw 142 is rotatably connected inside the assembly block 141. A torsion wheel 144 is fixedly connected to one side of the screw 142 extending out of the assembly block 141. A positioning block 143 is threadedly connected to the outer surface of the screw 142. The positioning block 143 is slidably connected inside the assembly block 141. One side of the positioning block 143 is movably connected to a positioning groove 133. Guide grooves 145 are provided on both sides of the interior of the assembly block 141. One side of the positioning block 143 is connected to the guide groove 145. 5. Sliding connection: Guide grooves 145 are provided on both sides of the interior of the assembly block 141, and one side of the positioning block 143 is slidably connected to the guide groove 145. By setting the fixing component 14, when it is necessary to remove the baffle 11 and the waterproof and breathable membrane 12, the torsion wheel 144 is rotated to drive the screw 142 to rotate, so that the positioning block 143 on its surface moves and the positioning block 143 leaves the positioning groove 133, so that the mounting plate 131 is no longer fixed and can be removed. By setting the guide groove 145, the positioning block 143 slides more stably in the assembly block 141, avoiding the displacement of the positioning rod sliding position.

[0027] refer to Figure 1-2 A feeding hopper 9 is fixedly connected to the side of the fixed outer seat 8 away from the feed pipe 4. The feeding hopper 9 extends into the side of the fixed outer seat 8 and is fixedly connected to the side of the fixed inner seat 10. By setting the feeding hopper 9, a mixture of solid substrate and fermentation bacteria is fed into the feeding hopper 9.

[0028] refer to Figure 5 A first flange 17 is fixedly connected to one side of the feed pipe 4, and a second flange 18 is fixedly connected to one side of the fixed outer seat 8. The first flange 17 is fixedly connected to the second flange 18 by fixing bolts 19. By setting the first flange 17 and the second flange 18, it is convenient to connect and fix the fixed outer seat 8 to the feed pipe 4, and it is also convenient for subsequent disassembly and maintenance.

[0029] refer to Figure 3The pushing component 15 includes a mounting groove 151, which is formed on both sides of one end of the fixed inner seat 10. A spring 153 is fixedly connected inside the mounting groove 151. A push block 154 is fixedly connected to one side of the spring 153. One side of the push block 154 is movably connected to one side of the fitting groove 132. A slide rod 152 is fixedly connected to the side of the push block 154 near the spring 153. One side of the slide rod 152 is slidably connected inside the mounting groove 151. By setting the pushing component 15, the mounting groove 151 is formed on the fixed inner seat 10. The push block 154 is connected to the mounting plate 131 by a spring 153. The push block 154 is connected to the fitting groove 132 of the mounting plate 131. The spring 153 deforms and fixes the mounting plate 131 by the fixing component 14. At this time, the spring 153 cannot recover its deformation. Once the mounting plate 131 contacts the fixing restriction, the spring 153 releases the restriction. The push block 154 moves the mounting plate 131 outward under the action of the spring 153, which makes it easier for the staff to remove the mounting plate 131. By setting the slide rod 152, the sliding of the push block 154 under the action of the spring 153 is more stable, which is conducive to the contact between the push block 154 and the fitting groove 132.

[0030] Operating principle and advantages: First, one side of the feed pipe 4 is connected and fixed to the fixed outer seat 8 through the first flange 17 and the second flange 18. The mixture of solid substrate and fermentation bacteria enters the rotating drum 2 from the feed pipe 4 through the feeding hopper 9. Then, the mounting plate 131 is inserted into the fixed outer seat 8, and the push block 154 is connected to the fitting groove 132 of the mounting plate 131. The spring 153 deforms, and the rotating torsion wheel 144 drives the screw 142 to rotate, causing the positioning block 143 on its surface to move. The positioning block 143 is inserted into the positioning groove 133, which fixes the mounting plate 131 with the baffle 11 and the waterproof and breathable membrane 12. During the rotation of the cross-flow fan 3, the fan blades exhaust the air inside the fermenter 5, the feed hose 6, and the rotating drum 2 from the feed pipe 4, preventing the entry of external air and forming a negative pressure area at the feed pipe 4. The negative pressure area may attract external humid air and impurities into the feed pipe 4. Net 11 can filter out larger impurities in the air, such as dust and insects, preventing them from entering the fermenter 5, contaminating the fermentation substrate, and affecting the fermentation quality. Waterproof and breathable membrane 12 can block the entry of external humid air and maintain a dry environment inside the fermenter 5, which is particularly important for the fermentation process, because a humid environment may cause microbial growth to go out of control, affecting the quality and stability of the fermentation product. While blocking humid air, waterproof and breathable membrane 12 can also allow air circulation, which helps to maintain the air pressure balance inside the fermenter 5. When it is necessary to remove net 11 and waterproof and breathable membrane 12, rotate torsion wheel 144 to drive screw 142 to rotate, causing the positioning block 143 on its surface to move. The positioning block 143 leaves the positioning groove 133, so that the mounting plate 131 is no longer fixed. By pushing component 15, the mounting plate 131 can be removed, and net 11 and waterproof and breathable membrane 12 can be replaced and maintained.

Claims

1. A solid substrate fermentation device, comprising a base (1), characterized in that: A rotating drum (2) is fixedly connected to the upper side of the base (1). A cross-flow impeller (3) is rotatably connected to the inner side of the rotating drum (2). A feed pipe (4) is fixedly connected to one side of the rotating drum (2). A fixed outer seat (8) is fixedly connected to the side of the feed pipe (4) away from the rotating drum (2). A fixed inner seat (10) is fixedly connected inside the fixed outer seat (8). One side of the fixed inner seat (10) is fitted and connected to one side of the feed pipe (4). An installation component (13) is provided on one side of the fixed inner seat (10). 3) A baffle (11) is installed on one side of the mounting component (13), and a waterproof and breathable membrane (12) is installed on the other side of the mounting component (13). The baffle (11) and the waterproof and breathable membrane (12) are both located inside the fixed inner seat (10). Fixed components (14) are provided on both sides of the fixed outer seat (8). Pushing components (15) are provided on both sides of one end of the fixed inner seat (10). A discharge pipe (7) is fixedly connected to the side of the rotating drum (2) away from the feed pipe (4). A fermentation tank (5) is connected to the side of the discharge pipe (7) through a hose (6). The mounting assembly (13) includes a mounting plate (131), the baffle (11) and the waterproof and breathable membrane (12) are both connected to the mounting plate (131), a fitting groove (132) is provided on one side of the mounting plate (131), one side of the pushing assembly (15) is movably connected to the fitting groove (132), a positioning groove (133) is provided on the other side of the mounting plate (131), and one side of the fixing assembly (14) is movably connected to the positioning groove (133).

2. The solid substrate fermentation device according to claim 1, characterized in that: The mounting plate (131) has grooves (134) on both sides, and the grooves (134) are located inside the fixed outer seat (8).

3. The solid substrate fermentation device according to claim 1, characterized in that: The fixing component (14) includes an assembly block (141), which is fixedly connected to both sides of the fixing outer seat (8). A screw (142) is rotatably connected inside the assembly block (141). A torsion wheel (144) is fixedly connected to one side of the screw (142) extending out of the assembly block (141). A positioning block (143) is threadedly connected to the outer surface of the screw (142). The positioning block (143) is slidably connected inside the assembly block (141). One side of the positioning block (143) is movably connected to the positioning groove (133). Guide grooves (145) are provided on both sides inside the assembly block (141). One side of the positioning block (143) is slidably connected to the guide groove (145).

4. The solid substrate fermentation device according to claim 1, characterized in that: A first flange (17) is fixedly connected to one side of the feed pipe (4), and a second flange (18) is fixedly connected to one side of the fixed outer seat (8). The first flange (17) is fixedly connected to the second flange (18) by fixing bolts (19).

5. A solid-substrate fermentation apparatus according to claim 1, characterized in that: The fixed outer seat (8) is fixedly connected to a feeding hopper (9) on the side away from the feed pipe (4), and the feeding hopper (9) is fixedly connected to one side of the fixed outer seat (8) and one side of the fixed inner seat (10).

6. A solid-substrate fermentation apparatus according to claim 1, characterized in that: The pushing component (15) includes a mounting groove (151), which is opened on both sides of one end of the fixed inner seat (10). A spring (153) is fixedly connected inside the mounting groove (151), and a push block (154) is fixedly connected to one side of the spring (153). One side of the push block (154) is movably connected to one side of the fitting groove (132).

7. A solid-substrate fermentation apparatus according to claim 6, characterized in that: The push block (154) is fixedly connected to a slide rod (152) on the side near the spring (153), and one side of the slide rod (152) is slidably connected inside the mounting groove (151).

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