Experimental framework for culturing earthworms by fermenting sludge

Abstract

The utility model discloses an experimental framework for culturing earthworms by fermenting sludge, which belongs to the technical field of sludge treatment and comprises a culture pond, a breathable layer laid at the bottom of the culture pond, sludge for culturing the earthworms laid at the top of the breathable layer, a thermometer mounted on the side surface of the culture pond, a hygrometer arranged inside the sludge and fixed with the culture pond. A support is movably arranged at the top of the culture pond, a feeding assembly is installed on the frame, a water spraying assembly used for supplementing water is installed on the support, a controller is installed on the side face of the culture pond, the thermometer, the hygrometer, the water spraying assembly and the feeding assembly are all electrically connected with the controller, earthworm culture can be achieved, and sludge can be treated.

Description

TECHNICAL FIELD

[0001] The utility model relates to sludge treatment technical field more specifically, relate to an experimental framework for fermenting sludge culture earthworm. BACKGROUND

[0002] Earthworms can make soil loose and improve the physical and chemical properties of soil by moving in soil and eating soil. The soil passing through the digestive tract of earthworms is discharged as worm castings, which contains several times more nitrogen, phosphorus and potassium than ordinary soil, and is a kind of high-efficiency organic fertilizer. The existing earthworm breeding method mainly uses ordinary soil or other traditional substrates, and there is a lack of efficient method for breeding earthworms by using sludge resources. In addition, a more reasonable and effective utilization approach is needed for the treatment of a large amount of sludge. The above problems are solved by the following solution. SUMMARY

[0003] In view of the problems in the prior art, the utility model aims to provide an experimental framework for fermenting sludge culture earthworms, which can realize earthworm culture and sludge treatment.

[0004] To solve the above problems, the utility model adopts the following technical scheme.

[0005] An experimental framework for fermenting sludge culture earthworms, comprising a culture tank, a breathable layer is laid at the bottom of the culture tank, sludge for culturing earthworms is laid on the top of the breathable layer, a thermometer is installed on the side of the culture tank, a hygrometer is arranged inside the sludge, the hygrometer and the culture tank are fixed, a support is movably arranged on the top of the culture tank, a feeding assembly is installed on the framework, a water spraying assembly for supplementing water is installed on the support, a controller is installed on the side of the culture tank, and the thermometer, the hygrometer, the water spraying assembly and the feeding assembly are electrically connected with the controller.

[0006] Preferably, the feeding assembly comprises a feeding hopper, a rotating motor and a distributing disc, the feeding hopper is vertically arranged, the feeding hopper and the support are fixedly connected, the distributing disc is rotatably arranged at the bottom of the feeding hopper, a plurality of feeding grooves are uniformly formed in the side of the distributing disc, the rotating motor is installed on the side of the feeding hopper, and the output end of the rotating motor is fixedly connected with one end of the distributing disc.

[0007] Preferably, the water spraying assembly comprises a water tank, a water pump, a water pipe and an atomizing nozzle, the water tank is arranged on the side of the culture tank, the water pump is arranged on the water tank, the input end of the water pump penetrates through the side of the water tank and is located in the water tank, the water pipe is installed at the bottom of the support, the atomizing nozzles are uniformly arranged on the water pipe, the atomizing nozzles and the water pipe are communicated, and one end of the water pipe is fixedly connected with the output end of the water pump through a connecting hose.

[0008] Preferably, the upper symmetry of the culture tank is fixed with a sliding rail, a sliding block is arranged on the sliding rail, and the two ends of the support are fixedly connected with the two sliding blocks respectively.

[0009] Preferably, a threaded rod is arranged on the sliding block, the threaded rod is threadedly matched with the sliding block, one end of the threaded rod is connected with a driving motor, the driving motor is fixedly connected with the culture tank, and the driving motor is electrically connected with the controller.

[0010] Preferably, a drain port is arranged at the bottom of the side of the culture tank, and the height of the drain port is lower than the height of the sludge.

[0011] Preferably, the bottom of the culture tank is arranged to be inclined, and the end of the bottom of the culture tank close to the drain port is lower than the end of the bottom of the culture tank far from the drain port.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] First, the air-permeable layer is used for air permeation of the sludge at the bottom, so that the oxygen content in the sludge is ensured, thereby improving the survival rate of earthworms, the environmental temperature is detected by a thermometer, so that the environmental temperature is 15-25 DEG C, the humidity of the sludge is detected by a hygrometer, so that the humidity of the sludge is maintained at 60%-70%, the controller is used for data processing, and when the environmental temperature exceeds a threshold value, the controller sends a signal to a user terminal, so that the user is reminded, and the user can make a response conveniently, and when the humidity is lower than a threshold value, the controller controls the water spraying assembly to work, the movable support can ensure that the water spraying assembly can wet the sludge in all directions, and the feeding assembly can supplement the bait in the sludge, so that the earthworms have sufficient food sources.

[0014] Second, the food is placed in the food hopper, the rotating motor drives the distributing disc to rotate, the rotating distributing disc drives the food trough to move to the lower side of the food hopper, the food falls into the food trough under the action of gravity, and the food trough moves out of the food hopper with the food under the action of rotation, until the food falls under the action of gravity when the food trough is inclined downward, and the food falls into the sludge, so that the effect of supplementing the bait for earthworms is achieved.

[0015] Third, the water tank is used for water storage, the water pump is used for sucking water in the water tank and conveying the water to the water pipe, and the water in the water pipe is uniformly sprayed on the sludge through the atomizing nozzle, so that the humidity of the sludge can be increased.

[0016] Fourth, the design of the sliding rail and the sliding block can reduce the friction of the movement of the support, ensure the stability of the movement, and guide and limit the movement of the support.

[0017] 5. The threaded rod is driven to rotate by the drive motor. Due to the threaded fit between the threaded rod and the slider, when the threaded rod rotates, it will push the slider to move, and thus the slider will move along the slide rail, which will drive the bracket to move. No manual movement is required, reducing the labor intensity of manual labor.

[0018] 6. Drainage outlets are used to ensure air contact between the air permeable layer and the external environment, ensuring the air permeability of the air permeable layer and improving the survival rate of earthworms.

[0019] 7. The sloping bottom arrangement facilitates the automatic drainage of excess water inside the culture tank, preventing water accumulation. Attached Figure Description

[0020] Figure 1 This is a front view structural diagram of the present utility model;

[0021] Figure 2 This is a side view of the structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the culture tank of this utility model;

[0023] Figure 4 This is a cross-sectional view of the feeding hopper of this utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure between the slide rail and the slider of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the water pipe, atomizing nozzle and connecting hose of this utility model.

[0026] Explanation of the labels in the diagram:

[0027] 1. Culture tank; 2. Aeration layer; 3. Sludge; 4. Thermometer; 5. Hygrometer; 6. Support frame; 7. Feeding assembly; 8. Water spray assembly; 9. Controller; 10. Feed hopper; 11. Rotary motor; 12. Feeding tray; 13. Feed trough; 14. Water tank; 15. Water pump; 16. Water pipe; 17. Atomizing nozzle; 18. Connecting hose; 19. Slide rail; 20. Slider; 21. Threaded rod; 22. Drive motor; 23. Drain outlet. Detailed Implementation

[0028] Example 1:

[0029] Please see Figures 1-6An experimental framework for cultivating earthworms in fermented sludge 3 includes a cultivation tank 1. A controller 9 is installed on the side of the cultivation tank 1. The cultivation tank 1 is rectangular. An air-permeable layer 2 is laid at the bottom of the cultivation tank 1, which does not contact the sides of the cultivation tank 1 to increase the contact area between the air-permeable layer 2 and the air. The air-permeable layer 2 is made of gravel or coarse sand and has a thickness of 10-20 cm. Sludge 3 for cultivating earthworms is laid on top of the air-permeable layer 2. The moisture content of the sludge 3 is controlled at approximately 65%. The air-permeable layer 2 is used to provide aeration to the bottom of the sludge 3 to ensure... The oxygen content in sludge 3 increases the survival rate of earthworms. Meanwhile, the bottom of the cultivation tank 1 is inclined at an angle of 2-4 degrees. The inclined design can drain excess water from the cultivation tank 1 to avoid excessive humidity caused by accumulation. At the same time, a drain outlet 23 is opened on the side of the cultivation tank 1 corresponding to the lower end of the bottom. The height of the drain outlet 23 is lower than the height of sludge 3. The drain outlet 23 is used to drain excess water from the inside of the cultivation tank 1. A filter screen is installed inside the drain outlet 23 to prevent earthworms or the air layer 2 from leaking out.

[0030] A thermometer 4 is installed on the side of the cultivation tank 1. The thermometer 4 is electrically connected to the controller 9. The thermometer 4 is used to detect the ambient temperature, keeping it between 15℃ and 25℃. A hygrometer 5 is installed inside the sludge 3. Multiple hygrometers 5 are evenly inserted into various positions of the sludge 3 to comprehensively monitor the humidity of the sludge 3. The hygrometers 5 are fixed to the cultivation tank 1 and electrically connected to the controller 9. By detecting the humidity of the sludge 3 through the hygrometers 5, the humidity of the sludge 3 is maintained at 60%-70%.

[0031] A support 6 is movable at the top of the culture tank 1. A slide rail 19 is symmetrically fixed on the upper part of the culture tank 1, and a slider 20 is slidably mounted on the slide rail 19. The two ends of the support 6 are fixedly connected to the two sliders 20 respectively. The design of the slide rail 19 and the sliders 20 can reduce the friction of the support 6 movement and ensure the stability of the movement. At the same time, the slide rail 19 will guide and limit the movement of the support 6. Threaded rods 21 are respectively threaded through the two sliders 20. The threaded rods 21 and the sliders 20 are threaded together. One end of the threaded rod 21 is connected to a drive motor 22. The drive motor 22 is fixedly connected to the culture tank 1 and electrically connected to the controller 9. The drive motor 22 can drive the threaded rod 21 to rotate, and the threaded rod 21 pushes the slider 20 to move, thereby driving the support 6 to move. Threaded rods 21 are installed on both sliders 20, and the threaded rods 21 are of the same model. The drive motor 22 is also of the same model, ensuring that the movement speed of the two ends of the support 6 is the same, thereby ensuring the stability of the movement of the support 6.

[0032] A feeding assembly 7 is installed on the frame. The feeding assembly 7 includes a feeding hopper 10, a rotating motor 11, and a distributing plate 12. The feeding hopper 10 is arranged vertically. The cross-sectional area of ​​the feeding port of the feeding hopper 10 is larger than the cross-sectional area of ​​the feeding port of the feeding hopper 10, similar to a funnel shape, which facilitates feeding and avoids the spillage of bait. The feeding hopper 10 is fixedly connected to the support 6. The distributing plate 12 is rotatably arranged at the bottom of the feeding hopper 10. The distributing plate 12 is located inside the feeding port. Several feeding troughs 13 are evenly opened on the side of the distributing plate 12. The feeding troughs 13 are opened along the axial direction of the distributing plate 12. The feeding troughs 13 are arranged in a circular array and are respectively opened on the outer side of the distributing plate 12. The rotating motor 11 is installed on the side of the feeding hopper 10, and the output end of the rotating motor 11 is fixedly connected to one end of the distributing plate 12.

[0033] By placing food in the feeding hopper 10, the motor 11 drives the feeding plate 12 to rotate. The rotating feeding plate 12 moves the feeding trough 13 to below the feeding hopper 10. The food falls into the feeding trough 13 under the action of gravity. Then, by rotating the feeding trough 13, the feeding trough 13 moves the food out of the feeding hopper 10. When it tilts downward, the food falls into the sludge 3 under its own gravity, thus supplementing the earthworms' food supply.

[0034] A water spray assembly 8 for replenishing water is installed on the support 6. The water spray assembly 8 includes a water tank 14, a water pump 15, a water pipe 16, and an atomizing nozzle 17. The water tank 14 is arranged on the side of the culture tank 1. A water inlet is provided on the water tank 14 to facilitate the replenishment of water into the water tank 14. At the same time, the water inlet can also be used to balance the air pressure inside and outside the water tank 14 to facilitate the water pump 15 to draw water. The water pump 15 is arranged on the water tank 14. The input end of the water pump 15 passes through the side of the water tank 14 and is located inside the water tank 14. The water pipe 16 is installed at the bottom of the support 6. The atomizing nozzles 17 are evenly arranged on the water pipe 16 and are connected to the water pipe 16. One end of the water pipe 16 is fixedly connected to the output end of the water pump 15 through a connecting hose 18.

[0035] Water is stored in water tank 14, and water is pumped out of water tank 14 by water pump 15 and transported to water pipe 16. Water inside water pipe 16 is evenly sprayed onto sludge 3 through atomizing nozzle 17, thereby increasing the humidity of sludge 3. At the same time, a fan can be installed on bracket 6. The fan and controller 9 are electrically connected. The fan can accelerate the evaporation of water on sludge 3, thereby reducing the humidity of sludge 3 to meet different needs.

[0036] Working principle:

[0037] The user cultivates earthworm seedlings in sludge 3. Maintaining the humidity of sludge 3 at 65% is beneficial for earthworm survival. A thermometer 4 monitors the ambient temperature during earthworm cultivation to ensure it remains suitable for growth and reproduction. When the ambient temperature exceeds a set threshold, the controller 9 sends a signal to the user's terminal, prompting a response. A hygrometer 5 detects the humidity of sludge 3. When the controller 9 detects that the humidity of sludge 3 is below 65%, it activates the water pump 15. When the pump 15 is activated, it draws water from the water tank 14 and sprays it onto the sludge 3 through the atomizing nozzle 17. At the same time, the drive motor 22 starts, which drives the threaded rod 21 to rotate. The rotating threaded rod 21 drives the slider 20 to move, which in turn drives the bracket 6 to move. The bracket 6 then drives the atomizing nozzle 17 to move. By moving the atomizing nozzle 17, the sludge 3 can be fully moistened. At the same time, when the humidity is greater than 65%, the controller 9 controls the fan to start, which dries the sludge 3 and reduces the humidity.

[0038] The controller 9 enables timed automatic feeding. The feed is placed in the feeding hopper 10, and the motor 11 drives the feeding plate 12 to rotate. When the feeding trough 13 aligns with the feeding port of the feeding hopper 10, the feed in the feeding hopper 10 falls into the feeding trough 13 under the action of gravity. The motor 11 drives the feeding plate 12 to continue rotating, so that the feeding trough 13 rotates from a vertically upward state to a vertically downward state and falls under the action of gravity, thus falling onto the sludge 3 to provide nutrients for the earthworms. At the same time, the support 6 also moves, so that the feed is fed to each area of ​​the sludge 3, ensuring uniform feeding.

Claims

1. An experimental framework for culturing earthworms in fermented sludge (3), characterized in that: The system includes a cultivation tank (1), with a breathable layer (2) at the bottom and sludge (3) for cultivating earthworms on top of the breathable layer (2). A thermometer (4) is installed on the side of the cultivation tank (1), and a hygrometer (5) is installed inside the sludge (3). The hygrometer (5) is fixed to the cultivation tank (1). A support (6) is movable on the top of the cultivation tank (1). A feeding component (7) is installed on the frame, and a water spray component (8) for replenishing water is installed on the support (6). A controller (9) is installed on the side of the cultivation tank (1). The thermometer (4), hygrometer (5), water spray component (8), and feeding component (7) are all electrically connected to the controller (9).

2. The experimental framework for culturing earthworms in fermented sludge (3) according to claim 1, characterized in that: The feeding assembly (7) includes a feeding hopper (10), a rotating motor (11), and a distributing tray (12). The feeding hopper (10) is arranged vertically and is fixedly connected to the support (6). The distributing tray (12) is rotatably arranged at the bottom of the feeding hopper (10). Several feeding troughs (13) are evenly provided on the side of the distributing tray (12). The rotating motor (11) is installed on the side of the feeding hopper (10), and the output end of the rotating motor (11) is fixedly connected to one end of the distributing tray (12).

3. The experimental framework for culturing earthworms in fermented sludge (3) according to claim 1, characterized in that: The water spray assembly (8) includes a water tank (14), a water pump (15), a water pipe (16), and an atomizing nozzle (17). The water tank (14) is arranged on the side of the culture tank (1). The water pump (15) is arranged on the water tank (14). The input end of the water pump (15) passes through the side of the water tank (14) and is located inside the water tank (14). The water pipe (16) is installed at the bottom of the bracket (6). The atomizing nozzle (17) is evenly arranged on the water pipe (16) and the atomizing nozzle (17) is connected to the water pipe (16). One end of the water pipe (16) is fixedly connected to the output end of the water pump (15) through a connecting hose (18).

4. The experimental framework for culturing earthworms in fermented sludge (3) according to claim 1, characterized in that: The culture tank (1) is symmetrically fixed with slide rails (19), and sliders (20) are slidably arranged on the slide rails (19). The two ends of the support (6) are respectively fixedly connected to the two sliders (20).

5. The experimental framework for culturing earthworms in fermented sludge (3) according to claim 4, characterized in that: A threaded rod (21) is threaded through the slider (20), and the threaded rod (21) and the slider (20) are threaded together. One end of the threaded rod (21) is connected to a drive motor (22), which is fixedly connected to the culture tank (1) and electrically connected to the controller (9).

6. The experimental framework for culturing earthworms in fermented sludge (3) according to claim 1, characterized in that: The bottom side of the culture tank (1) is provided with a drain outlet (23), and the height of the drain outlet (23) is lower than the height of the sludge (3).

7. The experimental framework for culturing earthworms in fermented sludge (3) according to claim 6, characterized in that: The bottom of the culture tank (1) is arranged at an angle, and the end of the bottom of the culture tank (1) near the drain outlet (23) is lower than the end away from the drain outlet (23).

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