Horizontal aerobic fermentation device for black soldier fly feces

Through the horizontal aerobic fermentation device, the conveying and tumbling mixing combined with ventilation and heat preservation measures are adopted to solve the problems of low fermentation efficiency and high energy consumption in the existing technology, and realize the efficient and environmentally friendly fermentation of black soldier fly feces, which is suitable for large-scale production.

CN223357568UActive Publication Date: 2025-09-19ZHEJIANG GEWU ECOLOGICAL TECH GRP CO LTD
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Patent Information

Application Number
CN202421362352.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-14
Publication Date
2025-09-19
Estimated Expiration
2034-06-14

AI Technical Summary

Technical Problem

Existing black soldier fly feces fermentation devices have low fermentation efficiency, high energy consumption, and complex operation, and cannot meet the needs of large-scale, efficient, and environmentally friendly fermentation.

Method used

A horizontal aerobic fermentation device is used to transport insect feces and sawdust through a conveying mechanism. The fermentation tank is driven by a driving mechanism to rotate slowly. Combined with the tumbling and mixing of the propeller plate, ventilation and insulation measures are provided to achieve efficient fermentation.

Benefits of technology

It achieves efficient and environmentally friendly fermentation treatment with simple operation and low energy consumption, is suitable for large-scale production, and the quality of the fermented insect feces is stable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fecula fermentation equipment, and discloses a horizontal aerobic fermentation device for hermetia illucens fecula, which comprises a support, a conveying mechanism for conveying fecula and wood chips is fixedly connected to the left side of the top of the support, and air is blown into a fermentation tank through a channel of an arrangement box and a discharge barrel. Waste gas in the fermentation tank is guided out from a channel passing through the material conveying box and the feeding hopper, when the interior of the fermentation tank is heated to 60 DEG C, the temperature is kept for fermentation, fermentation is completed, a second motor is started to drive a second spiral conveying rod to rotate, and the second spiral conveying rod rotates to drive a fermented mixture to be discharged from the arrangement box, so that the purpose that the fermentation is completed is achieved. Efficient and environment-friendly fermentation treatment of the black soldier fly feces is realized through screw propulsion of the first screw conveying rod and the second screw conveying rod and measures of rolling mixing, heat preservation, ventilation and the like of the tank body. The method is easy to operate, low in energy consumption, high in fermentation efficiency, stable in quality of the fermented fecula and suitable for large-scale production.
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Description

Technical Field

[0001] The utility model relates to the technical field of insect excrement fermentation equipment, and more specifically, to a horizontal aerobic fermentation device for black soldier fly excrement. Background Art

[0002] As a high-quality organic fertilizer, black soldier fly manure, while essentially fermented through insects, can still cause root burn if used directly in crops. Therefore, further fermentation is required to fully mature it.

[0003] Existing fermentation equipment has problems such as low fermentation efficiency, high energy consumption, and complex operation, and cannot meet the needs of large-scale, efficient, and environmentally friendly fermentation. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a horizontal aerobic fermentation device for black soldier fly excrement.

[0005] The utility model provides a horizontal aerobic fermentation device for black soldier fly excrement, which adopts the following technical solution: a horizontal aerobic fermentation device for black soldier fly excrement, comprising a bracket, a conveying mechanism for conveying excrement and wood chips fixedly connected to the left side of the top of the bracket, a left cover plate installed at the discharge port of the conveying mechanism, a tank body fixedly connected to the inner side of the left cover plate, a second spiral conveying rod installed inside the tank body, one end of the second spiral conveying rod is rotatably connected to a discharge barrel, and the outer surface of the discharge barrel is fixedly installed inside the right cover plate, the second spiral conveying rod passes through one end of the discharge barrel and is fixedly connected to the output shaft of the second motor, the bottom of the discharge barrel is fixedly connected to an arranging box, the other side of the tank body is fixedly connected to the right cover plate, the surface of the right cover plate is fixedly connected to a fixing plate, the surface of the fixing plate is fixedly connected to a rolling frame rotatably connected to the bracket, and the rotating shaft of the rolling frame passes through one end of the bracket and is equipped with a driving mechanism.

[0006] Preferably, the conveying mechanism includes a feed box, the surface of which is fixedly mounted inside the bracket, and one end surface of the feed box is rotatably connected to the left cover plate, the discharge port of the feed box is located in the inner cavity of the tank body, a feed hopper is installed on the top of the feed box, and the interior of the feed box is rotatably connected to a first spiral conveying rod, and the first spiral conveying rod passes through one end of the feed box and is fixedly connected to a first motor.

[0007] Preferably, the left cover plate, the tank body and the right cover plate form a fermentation tank for fermenting black soldier fly feces. The inner wall of the tank body is installed with a plurality of propulsion plates for assisting the tumbling and mixing of materials in the fermentation tank, and the tank body does not intersect with the second spiral conveying rod. The outer layer of the fermentation tank is coated with polyurethane insulation material to reduce heat loss. The fermentation tank is installed with a plurality of temperature sensors for real-time monitoring of the temperature of each section.

[0008] Preferably, the right cover plate and the fixing plate are fixedly connected together by screws.

[0009] Preferably, the driving mechanism includes a transmission gear, the interior of the transmission gear is fixedly connected to the rotating shaft of the rolling frame, the surface of the transmission gear is meshedly connected to the power gear, and the interior of the power gear is fixedly connected to the third motor.

[0010] In summary, the utility model includes the following beneficial technical effects: the utility model transports insect excrement and wood chips to the fermentation tank through a conveying mechanism, and then drives the fermentation tank to rotate slowly through a driving mechanism, and the rotation of the fermentation tank drives the propulsion plate to rotate, and the propulsion plate rotates to mix the fermented bacterial liquid with the insect excrement and wood chips and stir them evenly, and then uses the channel between the arrangement box and the discharge barrel to blow air into the fermentation tank, and the exhaust gas in the fermentation tank is discharged from the channel through the feed box and the feed hopper, so that the fermentation tank is heated to °, and the temperature is maintained for fermentation for 2 hours. When the fermentation is completed, the second motor is started to drive the second spiral conveying rod to rotate, and the second spiral conveying rod rotates to drive the fermented mixture to be discharged from the arrangement box, thereby achieving, through the spiral propulsion of the first spiral conveying rod and the second spiral conveying rod and the tumbling mixing, heat preservation, ventilation and other measures of the tank body, an efficient and environmentally friendly fermentation treatment of black soldier fly excrement is achieved. The method is simple to operate, has low energy consumption, high fermentation efficiency, and the quality of the fermented insect excrement is stable, and is suitable for large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front structural diagram of an embodiment of the present utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the tank in an embodiment of the present utility model;

[0013] Figure 3 It is a schematic diagram of the driving mechanism structure in an embodiment of the present utility model.

[0014] Explanation of the accompanying drawings: 1. Bracket; 2. Feed box; 3. Feed hopper; 4. First screw conveyor rod; 5. First motor; 6. Left cover plate; 7. Tank body; 8. Push plate; 9. Discharge barrel; 10. Second screw conveyor rod; 11. Second motor; 12. Arrangement box; 13. Right cover plate; 14. Fixed plate; 15. Screw; 16. Rolling frame; 17. Transmission gear; 18. Power gear; 19. Third motor. DETAILED DESCRIPTION

[0015] The following is combined with Figure 1-3 The utility model is described in further detail.

[0016] It should be noted that the drawings are schematic and not drawn to scale. For clarity and convenience, the relative sizes and proportions of parts shown in the drawings may be exaggerated or reduced in size. Any dimensions are illustrative only and are not intended to be limiting. Identical structures, elements, or components appearing in two or more drawings are denoted by the same reference numerals to indicate similar features.

[0017] The present invention discloses a horizontal aerobic fermentation device for black soldier fly excrement. Figure 1-3 A horizontal aerobic fermentation device for black soldier fly excrement comprises a bracket 1, a top left side of the bracket 1 being fixedly connected with a conveying mechanism for conveying excrement and sawdust;

[0018] The conveying mechanism includes a feed box 2, the surface of which is fixedly mounted inside the bracket 1, and one end surface of the feed box 2 is rotatably connected to the left cover plate 6. The discharge port of the feed box 2 is located in the inner cavity of the tank body 7. A feed hopper 3 is installed on the top of the feed box 2. A first spiral conveying rod 4 is rotatably connected to the inside of the feed box 2. One end of the first spiral conveying rod 4 passes through the feed box 2 and is fixedly connected to a first motor 5.

[0019] Specifically, a mixture of insect excrement and sawdust with a carbon-nitrogen ratio of 25:1 is placed into the feed hopper 3, and then the first motor 5 is started to drive the first screw conveyor rod 4 to rotate. The first screw conveyor rod 4 rotates to push the mixture into the fermentation tank, and then the fermentation liquid is poured into the fermentation tank;

[0020] The inner side of the left cover plate 6 is fixedly connected to the tank body 7, and a second spiral conveying rod 10 is installed inside the tank body 7. The inner wall of the tank body 7 is installed with several propulsion plates 8 for assisting the tumbling and mixing of materials in the fermentation tank. The propulsion plate 8 is composed of several push plates, each of which is 200×300mm in length and width, and the tank body 7 does not intersect with the second spiral conveying rod 10. One end of the second spiral conveying rod 10 is rotatably connected to the discharge barrel 9, and the outer surface of the discharge barrel 9 is fixedly installed inside the right cover plate 13. The second spiral conveying rod 10 passes through one end of the discharge barrel 9 and is fixedly connected to the output shaft of the second motor 11. An independent battery is installed on the tank body 7, which provides power for the second motor 11. The bottom of the discharge barrel 9 is fixedly connected to Arrange box 12, the other side of the tank body 7 is fixedly connected to the right cover plate 13, the left cover plate 6 and the tank body 7, the right cover plate 13 form a fermentation tank for fermenting black soldier fly excrement, the fermentation tank is mounted on the bracket 1 at an angle of 1°, and the inclination is toward the direction of the second motor 11, the outer layer of the fermentation tank is coated with polyurethane insulation material to reduce heat loss, and the fermentation tank is installed with a number of temperature sensors for real-time monitoring of the temperature of each section, the surface of the right cover plate 13 is fixedly connected to the fixed plate 14, and the right cover plate 13 and the fixed plate 14 are fixedly connected together by a screw 15, and the surface of the fixed plate 14 is fixedly connected to a rolling frame 16 rotatably connected to the bracket 1, and the rotating shaft of the rolling frame 16 passes through one end of the bracket 1 and is equipped with a driving mechanism;

[0021] The black soldier fly excrement is made from homemade high-temperature aerobic fermentation bacteria, which is evenly mixed with the excrement mixture and the moisture content is adjusted to 50%.

[0022] The driving mechanism includes a transmission gear 17, the interior of the transmission gear 17 is fixedly connected to the rotating shaft of the rolling frame 16, the surface of the transmission gear 17 is meshedly connected to the power gear 18, and the interior of the power gear 18 is fixedly connected to the third motor 19;

[0023] A heating wire is installed inside the tank body 7, and the heating wire is connected to an independent battery. A heat-conducting layer is installed on the inner wall of the fermentation tank;

[0024] Specifically, the third motor 19 drives the power gear 18 to rotate, and the power gear 18 rotates through the transmission gear 17 to drive the rolling frame 16 to rotate. The rolling frame 16 rotates through the fixed plate 14 to drive the fermentation tank to rotate slowly. The rotation of the fermentation tank drives the propulsion plate 8 to rotate. The propulsion plate 8 rotates to mix the fermented bacterial liquid with the insect feces and sawdust and stir them evenly. Then, air is blown into the fermentation tank through the channel between the arrangement box 12 and the discharge barrel 9, and the exhaust gas in the fermentation tank is discharged from the channel through the feed box 2 and the feed hopper 3. When the fermentation tank is heated to 65°, the temperature is maintained for fermentation for 48 hours. When the fermentation is completed, the second motor 11 is started to drive the second screw conveying rod 10 to rotate. The second screw conveying rod 10 rotates to drive the fermented mixture to be discharged from the arrangement box 12, and then the next process is carried out.

[0025] The above-described structural design achieves efficient and environmentally friendly fermentation of black soldier fly feces through the spiral propulsion of the first and second spiral conveyor rods 4 and 10 and the tumbling mixing, heat preservation, and ventilation of the tank body 7. This method is simple to operate, has low energy consumption, high fermentation efficiency, and the quality of the fermented feces is stable, making it suitable for large-scale production.

[0026] Finally, a few points should be explained: First, in the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0027] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0028] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A horizontal aerobic fermentation device for black soldier fly excrement, comprising a support (1), characterized in that: The left side of the top of the bracket (1) is fixedly connected to a conveying mechanism for conveying insect excrement and wood chips, the discharge port of the conveying mechanism is installed with a left cover plate (6), the inner side of the left cover plate (6) is fixedly connected to the tank body (7), the inside of the tank body (7) is installed with a second spiral conveying rod (10), one end of the second spiral conveying rod (10) is rotatably connected to the discharge barrel (9), and the outer surface of the discharge barrel (9) is fixedly installed inside the right cover plate (13), the second spiral conveying rod (10) passes through one end of the discharge barrel (9) and is fixedly connected to the output shaft of the second motor (11), the bottom of the discharge barrel (9) is fixedly connected to the arrangement box (12), the other side of the tank body (7) is fixedly connected to the right cover plate (13), the surface of the right cover plate (13) is fixedly connected to the fixed plate (14), the surface of the fixed plate (14) is fixedly connected to a rolling frame (16) rotatably connected to the bracket (1), and the rotating shaft of the rolling frame (16) passes through one end of the bracket (1) and is installed with a driving mechanism.

2. The horizontal aerobic fermentation device for black soldier fly excrement according to claim 1, characterized in that: The conveying mechanism includes a conveying box (2), the surface of the conveying box (2) is fixedly installed inside the bracket (1), and one end surface of the conveying box (2) is rotatably connected to the left cover plate (6), the discharge port of the conveying box (2) is located in the inner cavity of the tank body (7), a feed hopper (3) is installed on the top of the conveying box (2), the interior of the conveying box (2) is rotatably connected to a first spiral conveying rod (4), and one end of the first spiral conveying rod (4) passes through the conveying box (2) and is fixedly connected to a first motor (5).

3. The horizontal aerobic fermentation device for black soldier fly excrement according to claim 1, characterized in that: The left cover plate (6), the tank body (7) and the right cover plate (13) form a fermentation tank for fermenting black soldier fly feces. The inner wall of the tank body (7) is equipped with a plurality of propulsion plates (8) for assisting the tumbling and mixing of materials in the fermentation tank. The tank body (7) does not intersect with the second spiral conveying rod (10). The outer layer of the fermentation tank is coated with polyurethane insulation material to reduce heat loss. The fermentation tank is equipped with a plurality of temperature sensors for real-time monitoring of the temperature of each section.

4. The horizontal aerobic fermentation device for black soldier fly excrement according to claim 1, characterized in that: The right cover plate (13) and the fixed plate (14) are fixedly connected together via a screw rod (15).

5. The horizontal aerobic fermentation device for black soldier fly excrement according to claim 1, characterized in that: The driving mechanism includes a transmission gear (17), the interior of the transmission gear (17) is fixedly connected to the rotating shaft of the rolling frame (16), the surface of the transmission gear (17) is meshedly connected to a power gear (18), and the interior of the power gear (18) is fixedly connected to a third motor (19).