Method and apparatus for collecting earthworms

Abstract

The application provides an earthworm collecting method and device, and relates to the field of earthworm breeding.The earthworm collecting device comprises a gas generating assembly, a separation assembly, an air flow system and a control system.The gas generating assembly is composed of a gas generating box, a gas generating box door, a locking pin, a heating groove and a heating plate.The separation assembly is composed of a separation box, a separation box cover, a bottom plate, a partition plate, an air permeable pad, a feeding device, a discharging device and a collecting device.The feeding device is composed of a linear motor I and a feeding hopper.The discharging device is composed of a linear motor II and a base material discharging hopper.The collecting device is composed of a linear motor III, an earthworm discharging hopper, an earthworm collecting box and a base material collecting hopper.Through the use of the characteristics that earthworms are sensitive to ammonia gas and will actively escape, the separation of earthworms and breeding base materials is realized by introducing ammonia gas.Compared with the traditional manual separation or mechanical screening method, this method is more efficient and gentler on earthworms, and mechanical damage to earthworms is avoided.

Description

Technical Field

[0001] This invention relates to the field of earthworm farming equipment technology, specifically to earthworm collection methods and devices. Background Technology

[0002] Earthworm farming has significant application value and substantial comprehensive benefits in the treatment of livestock and poultry waste and agricultural waste. In livestock and poultry waste treatment, earthworms can efficiently decompose manure, transforming it into nutrient-rich vermicompost. This process not only effectively reduces manure accumulation and environmental pollution but also achieves resource utilization of waste. In agricultural waste treatment, earthworms can efficiently decompose organic waste such as crop straw, converting it into vermicompost, reducing the environmental pressure of waste. Vermicompost is a high-quality organic fertilizer, rich in humus, microorganisms, and various nutrients necessary for plant growth. It can improve soil structure, increase soil fertility, and improve crop yield. Through earthworm farming, agricultural waste can be transformed into valuable resources, while also reducing environmental pollution caused by waste. Earthworms themselves are rich in protein, with a protein content of 60%-70% and a balanced amino acid composition, making them a high-quality feed for aquatic animals and livestock, thus possessing high economic value. The earthworm farming industry can also drive the coordinated development of related industries such as feed processing, earthworm castings sales, and earthworm product processing, providing farmers with new ways to increase their income and promoting rural economic development.

[0003] In traditional earthworm farming, manual collection is usually employed. This method is inefficient, labor-intensive, and easily damages the earthworms, affecting their survival rate and subsequent utilization value. Mechanical sorting equipment is also used to collect earthworms; however, mechanically collected earthworms are mixed with a large amount of substrate, resulting in low cleanliness. Secondary separation is required, and mechanical damage to the earthworms is also possible, making it difficult to guarantee the quality of the collected earthworms.

[0004] In view of the limitations of existing technologies, this invention proposes a collection method and device based on the earthworm's sensitivity to ammonia. This method uses ammonia as a repellent medium; by controlling the ammonia concentration, earthworms are encouraged to actively escape from the breeding substrate, thereby achieving efficient and safe earthworm collection. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a method and apparatus for collecting earthworms, thus resolving the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: an earthworm collecting device, comprising a gas generating component, a separation component, an airflow system, and a control system;

[0009] The gas generating assembly consists of a gas generating chamber, a gas generating chamber door, a locking pin, a heating tank, and a heating plate.

[0010] The separation assembly consists of a separation box, a separation box cover, a bottom plate, a partition, a breathable pad, a feeding device, a discharging device, and a collecting device. The feeding device consists of a linear motor I and a feeding hopper, and two linear motors I are provided. The discharging device consists of a linear motor II and a base material discharging hopper, and two linear motors II are provided. The collecting device consists of a linear motor III, an earthworm discharging hopper, an earthworm collecting box, and a base material collecting box, and two linear motors III are provided.

[0011] The airflow system consists of an air extractor, an air extraction pipe, an air pump, and an air pipe;

[0012] The control system consists of a controller and an ammonia sensor.

[0013] Preferably, the gas generating box has a box structure with an opening at the top;

[0014] The separation box is fixedly connected to the upper part of the gas generating box by bolts, and the heating plate is an electric heating plate, which is installed at the bottom of the gas generating box;

[0015] The heating tank is a tank-shaped structure made of heat-resistant glass, with an opening at the top;

[0016] The gas generating chamber door is installed on one side of the gas generating chamber, and its bottom is hinged to the gas generating chamber.

[0017] Preferably, the separation box has a box structure, and the separation box cover is located on the upper part of the separation box;

[0018] The separation box has three openings on both sides. A feeding hopper is installed on the outside of one of the openings and is hinged to the separation box. A base material discharge hopper is installed on the outside of another opening and is hinged to the separation box. An earthworm discharge hopper is installed on the outside of yet another opening and is hinged to the separation box.

[0019] The base plate is fixedly connected to the bottom of the separation box, the partition is fixedly connected to the middle of the separation box, and the air-permeable pad is installed on top of the base plate.

[0020] Preferably, the base plate is inclined at an angle of 75-85 degrees, and the base plate is densely covered with through holes, each hole being 20-50mm long and 10-30mm wide;

[0021] The partition is inclined at an angle of 75-85 degrees, and the partition is densely covered with through holes, each hole being 20-50mm long and 10-30mm wide.

[0022] Preferably, one end of the linear motor is connected to a pin on the outside of the gas generating box, and the telescopic end of the linear motor is connected to a pin on the side of the feed hopper.

[0023] One end of the linear motor 2 is connected to a pin on the outside of the gas generating box, and the telescopic end of the linear motor 2 is connected to a pin on the side of the base material discharge hopper.

[0024] One end of the linear motor is connected to a pin on the outside of the separation box, and the telescopic end of the linear motor is connected to a pin on the side of the earthworm discharge hopper.

[0025] Preferably, the vacuum pump is installed above the separation box cover, and the vacuum pipe consists of a main vacuum pipe and a vacuum connecting pipe. The main vacuum pipe is installed inside the separation box at the top, and one end of the vacuum connecting pipe is connected to the main vacuum pipe via a T-junction, and the other end is connected to the air inlet of the vacuum pump.

[0026] The air pump is installed above the separation chamber cover. The air pipe consists of a main air pipe and an air connecting pipe. The main air pipe is installed inside the separation chamber at the top. One end of the air connecting pipe is connected to the main air pipe via a T-junction, and the other end is connected to the air outlet of the air pump.

[0027] Preferably, the controller is electrically connected to linear motor one, linear motor two, linear motor three, ammonia sensor, heating plate, vacuum pump, and air pump.

[0028] Earthworm collection methods include the following steps:

[0029] Step 1: Open the gas generator door, place the ammonia gas generating material in the heating tank, close the gas generator door, and after the bottom plate and partition plate are filled with the mixture of earthworms and breeding substrate, fix the gas generator door with the locking pin.

[0030] Step 2: Control the opening of the feeding hopper via the controller, and load the mixture of earthworms and breeding substrate into the separation box through the opening. Control the closing of the feeding hopper via the controller.

[0031] Step 3: The controller powers on the heating plate to heat the heating tank, causing the ammonia inside to react with the raw materials and produce ammonia gas. The controller then activates the vacuum pump, which, under pressure, diffuses the ammonia gas through the vents and air pads at the bottom of the separation chamber into the earthworm and feed mixture, and further to the top of the chamber. When the ammonia sensor detects the concentration and sends it to the controller, the controller stops heating the plate and the vacuum pump when the concentration reaches the set upper limit. When the air pump starts, the two linear motors open the earthworm discharge hopper. During this process, as the ammonia concentration in the mixture increases, the earthworms will actively escape to the area with lower ammonia concentration. After the air pump starts, fresh air is blown into the upper part of the separation box, allowing the earthworms to get fresh air. After the two linear motors open the earthworm discharge hopper, the earthworms separated above the partition in the separation box will actively crawl out and fall into the earthworm collection box placed below the earthworm discharge hopper. After all the earthworms above the partition have fallen into the earthworm collection box, the earthworm collection work is completed.

[0032] Step 4: After the earthworm collection is completed, remove the earthworm collection box. Use the controller to close the earthworm discharge hopper and open the substrate discharge hopper and feed hopper at the same time. Push the substrate in the separation box out of the substrate discharge hopper at the feed hopper. The substrate falls into the substrate collection box placed below the substrate discharge hopper until all the substrate in the separation box is cleared. Use the controller to close the substrate discharge hopper to complete the substrate collection.

[0033] (III) Beneficial Effects

[0034] This invention provides a method and apparatus for collecting earthworms. It has the following beneficial effects:

[0035] 1. Taking advantage of earthworms' sensitivity to ammonia and their tendency to actively escape, ammonia is introduced to separate earthworms from the breeding substrate. This method is more efficient and gentler on earthworms than traditional manual separation or mechanical screening methods, avoiding mechanical damage to the earthworms.

[0036] 2. The gas generating components, separation components, airflow system and control system are integrated into one unit to form a complete automated device. This integrated design realizes the full-process automation operation from ammonia generation to earthworm separation and collection, reduces manual intervention, improves work efficiency, reduces labor intensity, and also improves the accuracy and stability of operation.

[0037] 3. The bottom plate and partitions of the separation box are both designed with an incline and are densely covered with through holes. This structure is conducive to the uniform diffusion of ammonia gas, allowing earthworms to sense the ammonia gas more quickly and escape. At the same time, it facilitates the smooth sliding out of the separated substrate. The feeding device, discharging device and collecting device are all controlled by linear motors, realizing the automated operation of feeding, discharging and earthworm collection, improving the convenience and accuracy of operation and reducing the tediousness of manual operation.

[0038] 4. The control system uses an ammonia sensor to detect the ammonia concentration at the top of the separation chamber in real time, and automatically controls the working status of the heating plate, the vacuum pump and the air pump based on the concentration information. This intelligent control method can accurately control the ammonia concentration, ensuring the stability and reliability of the separation process, and avoiding the problems of excessively high ammonia concentration causing damage to earthworms or excessively low concentration leading to poor separation effect.

[0039] 5. The airflow system consists of an air extractor and an air pump. The air extractor introduces ammonia into the separation chamber, and the air pump blows fresh air into the separation chamber. This airflow design not only promotes the diffusion of ammonia but also provides a suitable environment for earthworms. At the same time, the influx of fresh air encourages earthworms to actively crawl out, further improving the separation effect and the survival rate of earthworms. Attached Figure Description

[0040] Figure 1 This is a perspective view of the earthworm collection method and apparatus proposed in this invention;

[0041] Figure 2 This is a perspective view of the gas generating chamber of the earthworm collection method and apparatus proposed in this invention;

[0042] Figure 3 This is a schematic diagram showing the opening of the gas generating chamber door of the earthworm collection method and apparatus proposed in this invention;

[0043] Figure 4 This is a schematic diagram of the separation box of the earthworm collection method and device proposed in this invention;

[0044] Figure 5 This is a schematic diagram of the earthworm collection state of the earthworm collection method and device proposed in this invention;

[0045] Figure 6 This is a schematic diagram showing the opening of the feed hopper of the earthworm collection method and device proposed in this invention;

[0046] Figure 7 This is a schematic diagram of the substrate collection state of the earthworm collection method and device proposed in this invention;

[0047] Figure 8 This is a schematic diagram of the airflow system of the earthworm collection method and device proposed in this invention.

[0048] The components include: 1. Gas generating box; 2. Gas generating box door; 3. Locking pin; 4. Heating tank; 5. Heating plate; 6. Separation box; 7. Separation box cover; 8. Base plate; 9. Partition; 10. Linear motor one; 11. Feed hopper; 12. Linear motor two; 13. Base material discharge hopper; 14. Linear motor three; 15. Earthworm discharge hopper; 16. Air extractor; 17. Air extraction pipe; 18. Air pump; 19. Air pipe; 20. Controller; 21. Ammonia sensor; 22. Earthworm collection box; 23. Base material collection box. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] Example:

[0051] like Figure 1-8 As shown, this embodiment of the invention provides an earthworm collecting device, including a gas generating component, a separation component, an airflow system, and a control system;

[0052] The gas generating assembly consists of a gas generating chamber 1, a gas generating chamber door 2, a locking pin 3, a heating tank 4, and a heating plate 5;

[0053] The separation assembly consists of a separation box 6, a separation box cover 7, a bottom plate 8, a partition 9, a breathable pad, a feeding device, a discharging device, and a collecting device. The feeding device consists of a linear motor 10 and a feeding hopper 11, with two linear motors 10. The discharging device consists of a linear motor 2 12 and a base material discharging hopper 13, with two linear motors 2 12. The collecting device consists of a linear motor 3 14, an earthworm discharging hopper 15, an earthworm collecting box 22, and a base material collecting box 23, with two linear motors 3 14. The locking pin 3 is used to fix the gas generating box door 2 when it is closed.

[0054] The airflow system consists of an air extractor 16, an air extraction pipe 17, an air pump 18, and an air pipe 19;

[0055] The control system consists of a controller 20 and an ammonia sensor 21.

[0056] Gas generating chamber 1 is a box structure with an opening at the top;

[0057] The separation box 6 is fixedly connected to the upper part of the gas generating box 1 by bolts, and the heating plate 5 is an electric heating plate, which is installed at the bottom of the gas generating box 1;

[0058] Heating tank 4 is a tank-shaped structure made of heat-resistant glass, with an opening at the top, and the interior is used to place ammonia generating raw materials (such as a mixture of solid ammonium chloride and quicklime).

[0059] The gas generating chamber door 2 is installed on one side of the gas generating chamber 1, and its bottom is hinged to the gas generating chamber 1.

[0060] The separation box 6 is a box structure, and the separation box cover 7 is set on the upper part of the separation box 6. The special structural design of the separation box 6 is conducive to the uniform diffusion of ammonia and the escape of earthworms, while facilitating the discharge of substrate, thus improving the practicality and stability of the device. The entire device has a compact structure, reasonable design, and is easy to install, operate and maintain.

[0061] The two sides of the separation box 6 are provided with three openings. A feed hopper 11 is installed on the outside of one opening and is hinged to the separation box 6. A base material discharge hopper 13 is installed on the outside of another opening and is hinged to the separation box 6. An earthworm discharge hopper 15 is installed on the outside of another opening and is hinged to the separation box 6.

[0062] The bottom plate 8 is fixedly connected to the bottom of the separation box 6, the partition plate 9 is fixedly connected to the middle of the separation box 6, and the air-permeable pad is installed on the top of the bottom plate 8.

[0063] The base plate 8 is inclined at an angle of 75-85 degrees. The base plate 8 is densely covered with through holes, each hole being 20-50mm long and 10-30mm wide.

[0064] The partition 9 is inclined at an angle of 75-85 degrees. The partition 9 is densely covered with through holes, each hole being 20-50mm long and 10-30mm wide.

[0065] One end of linear motor 10 is connected to a pin on the outside of gas generator 1, and the telescopic end of linear motor 10 is connected to a pin on the side of feed hopper 11. When feeding, the two linear motors 10 drive the feed hopper 11 to open, loading the mixture of earthworms and breeding substrate from the feed hopper 11 into the separation box 6. When the earthworms are separated, the two linear motors 10 drive the feed hopper 11 to close, making the separation box 6 a closed state.

[0066] One end of linear motor 12 is connected to a pin on the outside of gas generating box 1, and the telescopic end of linear motor 12 is connected to a pin on the side of base material discharge hopper 13. When discharging, the two linear motors 12 drive the base material discharge hopper 13 to open, and the separated base material slides out from the separation box 6. When the earthworms are separated, the two linear motors 12 drive the base material discharge hopper 13 to close, making the separation box 6 a closed state.

[0067] One end of linear motor 314 is connected to a pin on the outside of the separation box 6, and the telescopic end of linear motor 314 is connected to a pin on the side of the earthworm discharge hopper 15. When collecting earthworms, the two linear motors 314 drive the earthworm discharge hopper 15 to open, and the earthworms separated above the partition 9 inside the separation box 6 will actively crawl out and fall into the earthworm collection box below. When the earthworms are separated, the two linear motors 314 drive the earthworm discharge hopper 15 to close, making the separation box 6 a closed state.

[0068] The vacuum pump 16 is installed above the separation box cover 7. The vacuum pipe 17 consists of a vacuum main pipe and a vacuum connecting pipe. The vacuum main pipe is installed inside the separation box 6 at the top. One end of the vacuum connecting pipe is connected to the vacuum main pipe through a tee, and the other end is connected to the air inlet of the vacuum pump 16.

[0069] An air pump 18 is installed above the separation chamber cover 7. An air pipe 19 consists of an air main pipe and an air connecting pipe. The air main pipe is installed inside the separation chamber 6 at the top. One end of the air connecting pipe is connected to the air main pipe via a T-junction, and the other end is connected to the air outlet of the air pump 18. Ammonia gas is introduced into the separation chamber 6 by the air extractor 16, and fresh air is blown into the separation chamber 6 by the air pump 18. This airflow design not only promotes the diffusion of ammonia gas, but also provides a suitable environment for earthworms. At the same time, the influx of fresh air encourages earthworms to actively crawl out, further improving the separation effect and the survival rate of earthworms.

[0070] The controller 20 is electrically connected to linear motor 10, linear motor 2 12, linear motor 3 14, ammonia sensor 21, heating plate 5, vacuum pump 16, and air pump 18. The controller 20 is used to control the start and stop of each linear motor, control the heating and stopping of heating plate 5, control the start and stop of vacuum pump 16, control the start and stop of air pump 18, and also to receive information from ammonia sensor 21. When the ammonia depth above the separation box 6 reaches the set value, the controller 20 controls the heating plate 5 to stop heating and the vacuum pump 16 to stop working. Ammonia sensor 21 is used to sense the ammonia concentration in the upper part of separation box 6 and feed the concentration signal back to controller 20.

[0071] Earthworm collection methods include the following steps:

[0072] Step 1: Open the gas generator door 2, place the ammonia gas generating material in the heating tank 4, close the gas generator door 2, and fix the gas generator door 2 with the locking pin 3;

[0073] Step 2: Control the feed hopper 11 to open via controller 20, and feed the earthworm and breeding substrate mixture into the separation box 6 through the opening. When the bottom plate 8 and the partition plate 9 are filled with the earthworm and breeding substrate mixture, control the feed hopper 11 to close via controller 20.

[0074] Step 3: The controller 20 controls the heating plate 5 to be powered on and heated, heating the heating tank 4, causing the ammonia inside to react with the raw materials and produce ammonia gas. The controller 20 then controls the vacuum pump 16 to start. Under the action of air pressure, the ammonia gas diffuses through the through holes and ventilation pads at the bottom of the separation tank 6 into the earthworm and breeding substrate mixture inside the separation tank 6, and diffuses to the upper part of the separation tank 6. When the ammonia gas sensor 21 detects the ammonia gas concentration information and feeds it back to the controller 20, when the ammonia gas concentration reaches the set upper limit (17 mg / m³), the ammonia gas concentration is controlled to increase. 3 When the ammonia concentration in the mixture increases, the earthworms will actively escape to areas with lower ammonia concentrations. After the air pump 18 starts, fresh air is blown into the upper part of the separation box 6, allowing the earthworms to get fresh air. After the two linear motors 14 drive the earthworm discharge hopper 15 to open, the earthworms separated above the partition 9 in the separation box 6 will actively crawl out and fall into the earthworm collection box 22 placed below the earthworm discharge hopper 15. After all the earthworms above the partition 9 fall into the earthworm collection box 22, the earthworm collection work is completed.

[0075] Step 4: After the earthworm collection is completed, remove the earthworm collection box 22, close the earthworm discharge hopper 15 via the controller 20, and simultaneously open the substrate discharge hopper 13 and the feed hopper 11. At the feed hopper 11, push the substrate in the separation box 6 out from the substrate discharge hopper 13. The substrate falls into the substrate collection box 23 placed below the substrate discharge hopper 13 until all the substrate in the separation box 6 is cleared. Then, close the substrate discharge hopper 13 via the controller 20 to complete the substrate collection.

[0076] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An earthworm collecting device, comprising a gas generating component, a separation component, an airflow system, and a control system, characterized in that: The gas generating assembly consists of a gas generating chamber (1), a gas generating chamber door (2), a locking pin (3), a heating tank (4), and a heating plate (5); The separation assembly consists of a separation box (6), a separation box cover (7), a bottom plate (8), a partition (9), a breathable pad, a feeding device, a discharging device, and a collecting device. The feeding device consists of a linear motor (10) and a feeding hopper (11), and there are two linear motors (10). The discharging device consists of a linear motor (12) and a base material discharging hopper (13), and there are two linear motors (12). The collecting device consists of a linear motor (14), an earthworm discharging hopper (15), an earthworm collecting box (22), and a base material collecting box (23), and there are two linear motors (14). The airflow system consists of an air extractor (16), an air extraction pipe (17), an air pump (18), and an air pipe (19); The control system consists of a controller (20) and an ammonia sensor (21); The gas generating box (1) has a box structure with an opening at the top; The separation box (6) is fixedly connected to the upper part of the gas generating box (1) by bolts, and the heating plate (5) is an electric heating plate, which is installed at the bottom of the gas generating box (1); The heating tank (4) is a tank-shaped structure made of heat-resistant glass, with an opening at the top; The gas generating box door (2) is installed on one side of the gas generating box (1), and its bottom is hinged to the gas generating box (1); The vacuum pump (16) is installed above the separation box cover (7). The vacuum pipe (17) consists of a vacuum main pipe and a vacuum connecting pipe. The vacuum main pipe is installed above the inside of the separation box (6). One end of the vacuum connecting pipe is connected to the vacuum main pipe through a tee, and the other end is connected to the air inlet of the vacuum pump (16). The air pump (18) is installed above the separation box cover (7). The air pipe (19) consists of an air main pipe and an air connecting pipe. The air main pipe is installed above the inside of the separation box (6). One end of the air connecting pipe is connected to the air main pipe through a tee, and the other end is connected to the air outlet of the air pump (18).

2. The earthworm collecting device according to claim 1, characterized in that: The separation box (6) is a box structure, and the separation box cover (7) is located on the upper part of the separation box (6); The separation box (6) has three openings on both sides. A feeding hopper (11) is installed on the outside of one of the openings and is hinged to the separation box (6). A base material discharge hopper (13) is installed on the outside of another opening and is hinged to the separation box (6). An earthworm discharge hopper (15) is installed on the outside of another opening and is hinged to the separation box (6). The bottom plate (8) is fixedly connected to the bottom of the separation box (6), the partition (9) is fixedly connected to the middle of the separation box (6), and the air-permeable pad is installed above the bottom plate (8).

3. The earthworm collecting device according to claim 2, characterized in that: The base plate (8) is inclined at an angle of 75-85 degrees. The base plate (8) is densely covered with through holes, each hole being 20-50 mm long and 10-30 mm wide. The partition (9) is inclined at an angle of 75-85 degrees. The partition (9) is densely covered with through holes, each hole being 20-50 mm long and 10-30 mm wide.

4. The earthworm collecting device according to claim 1, characterized in that: One end of the linear motor (10) is connected to the pin outside the gas generating box (1), and the telescopic end of the linear motor (10) is connected to the pin on the side of the feed hopper (11). One end of the linear motor (12) is connected to the pin outside the gas generating box (1), and the telescopic end of the linear motor (12) is connected to the pin on the side of the base material discharge hopper (13). One end of the linear motor three (14) is connected to the pin on the outside of the separation box (6), and the telescopic end of the linear motor three (14) is connected to the pin on the side of the earthworm discharge hopper (15).

5. The earthworm collecting device according to claim 1, characterized in that: The controller (20) is electrically connected to linear motor one (10), linear motor two (12), linear motor three (14), ammonia sensor (21), heating plate (5), vacuum pump (16), and air pump (18).

6. A method for collecting earthworms, applicable to the earthworm collecting device according to any one of claims 1-5, characterized in that, Includes the following steps: Step 1: Open the gas generator door (2), place the ammonia generating material in the heating tank (4), close the gas generator door (2), and fix the gas generator door (2) with the locking pin (3); Step 2: Control the feed hopper (11) to open through the controller (20), and load the earthworm and breeding substrate mixture into the separation box (6) through the opening. When the bottom plate (8) and the partition plate (9) are filled with the earthworm and breeding substrate mixture, control the feed hopper (11) to close through the controller (20). Step 3: The controller (20) controls the heating plate (5) to be powered on and heated to heat the heating tank (4), causing the ammonia inside to react with the raw materials and produce ammonia. The controller (20) controls the vacuum pump (16) to start. Under the action of air pressure, the ammonia diffuses through the through holes and air pads at the bottom of the separation box (6) into the earthworm and breeding substrate mixture inside the separation box (6), and diffuses to the upper part of the separation box (6). When the ammonia sensor (21) senses the ammonia concentration information and feeds it back to the controller (20), when the ammonia concentration reaches the set upper limit, the controller (20) controls the heating plate (5) to stop heating, the vacuum pump (16) to stop working, and controls the air When the pump (18) is started, the two linear motors (14) open the earthworm discharge hopper (15). During this process, as the ammonia concentration in the mixture increases, the earthworms will actively escape to the area with lower ammonia concentration. After the air pump (18) is started, fresh air is blown into the upper part of the separation box (6) so that the earthworms can get fresh air. After the two linear motors (14) drive the earthworm discharge hopper (15) to open, the earthworms separated above the partition (9) in the separation box (6) will actively crawl out and fall into the earthworm collection box (22) placed below the earthworm discharge hopper (15). After all the earthworms above the partition (9) fall into the earthworm collection box (22), the earthworm collection work is completed. Step 4: After the earthworm collection is completed, remove the earthworm collection box (22), close the earthworm discharge hopper (15) controlled by the controller (20), and open the base material discharge hopper (13) and the feed hopper (11) at the same time. At the feed hopper (11), push the base material in the separation box (6) out from the base material discharge hopper (13). The base material falls into the base material collection box (23) placed below the base material discharge hopper (13) until all the base material in the separation box (6) is cleared. Then, close the base material discharge hopper (13) controlled by the controller (20) to complete the base material collection.

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