Earthworm collecting method and device

Abstract

The invention provides an earthworm collecting method and device, and relates to the field of earthworm breeding. The earthworm collecting device comprises a gas generation assembly, a separation assembly, a gas flow system and a control system, the gas generation assembly is composed of a gas generation box, a gas generation box door, a lock pin, a heating groove and a heating plate. The separating assembly is composed of a separating box, a separating box cover, a bottom plate, a partition plate, a breathable pad, a feeding device, a discharging device and a collecting device, the feeding device is composed of a first linear motor and a feeding hopper, the discharging device is composed of a second linear motor and a base material discharging hopper, and the collecting device is composed of a third linear motor, an earthworm discharging hopper, an earthworm collecting box and a base material collecting hopper. The characteristics that the earthworms are sensitive to ammonia gas and can actively escape are utilized, separation of the earthworms and the breeding base material is achieved by introducing the ammonia gas, compared with a traditional manual separation or mechanical screening mode, the method is more efficient and milder to the earthworms, and mechanical damage to the earthworms is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of earthworm breeding equipment, and specifically to an earthworm collection method and device. Background Art

[0002] The earthworm breeding industry has extremely important application value and remarkable comprehensive benefits in the treatment of livestock and poultry breeding waste and agricultural waste. In the treatment of livestock and poultry breeding waste, earthworms can efficiently decompose livestock and poultry manure and convert it into nutrient-rich earthworm castings. This process not only effectively reduces manure accumulation and environmental pollution, but also realizes the resource utilization of waste. In terms of agricultural waste treatment, earthworms can efficiently decompose organic wastes such as crop straws and convert them into earthworm castings, reducing the environmental pressure caused by waste. Earthworm castings are a high-quality organic fertilizer, rich in humus, microorganisms and various nutrient elements required for plant growth, which can improve soil structure, increase soil fertility and improve crop yield. Through earthworm breeding, agricultural waste can be converted into valuable resources, and the environmental pollution problem caused by waste can also be reduced. Earthworms themselves are rich in high protein, with a protein content of up to 60%-70%, and the amino acid composition is balanced. They can be used as high-quality feed for aquaculture and livestock breeding, etc., and have high economic value. The earthworm breeding industry can also drive the coordinated development of related industries such as feed processing, earthworm casting sales, and earthworm product processing, providing new income-increasing ways for farmers and promoting the development of rural economy.

[0003] In traditional earthworm breeding, manual collection is usually adopted. This method is inefficient, has a large labor intensity, and is prone to damaging earthworms, affecting their survival rate and subsequent utilization value. There are also mechanical screening devices used to collect earthworms. However, mechanical collection of earthworms will be mixed with a large amount of base materials, the cleanliness of earthworms is low, and secondary separation is still required. There is also a possibility of causing mechanical damage to earthworms, and the effect of the collected earthworms is difficult to guarantee.

[0004] In view of the limitations of the prior art, the present invention proposes a collection method and device based on the ammonia-sensitive characteristics of earthworms. This method uses ammonia as a driving medium, and by controlling the ammonia concentration, it prompts earthworms to actively escape from the breeding base materials, thereby realizing efficient and safe earthworm collection. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present invention provides an earthworm collection method and device to solve the problems in the above background art.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present invention is realized through the following technical solutions: an earthworm collection device, comprising a gas generation component, a separation component, an air flow system, and a control system;

[0009] The gas generation component consists of a gas generation box, a gas generation box door, a locking pin, a heating tank, and a heating plate;

[0010] The separation component consists of a separation box, a separation box cover, a bottom plate, a partition plate, a breathable pad, a feeding device, a discharging device, and a collection device. The feeding device consists of a linear motor one and a feeding hopper. There are two linear motors one. The discharging device consists of a linear motor two and a base material discharging hopper. There are two linear motors two. The collection device consists of a linear motor three, an earthworm discharging hopper, an earthworm collection box, and a base material collection box. There are two linear motors three;

[0011] The air flow 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 generation box is of a box structure with an opening at the upper part;

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

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

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

[0017] Preferably, the separation box is of a box structure, and the separation box cover is arranged at the upper part of the separation box;

[0018] Three openings are provided on both sides of the separation box. A feeding hopper is installed outside one of the openings and is hinged to the separation box. A base material discharging hopper is installed outside another opening and is hinged to the separation box. An earthworm discharging hopper is installed outside another opening and is hinged to the separation box;

[0019] The bottom plate is fixedly connected to the bottom of the separation box, the partition plate is fixedly connected to the middle of the separation box, and the breathable pad is installed above the bottom plate.

[0020] Preferably, the bottom plate is in an inclined manner with an inclination angle of 75 - 85 degrees. The bottom plate is densely covered with through holes, and the length of each hole is 20 - 50 mm and the width is 10 - 30 mm;

[0021] The partition board is in an inclined manner with an inclination angle of 75 - 85 degrees. The partition board is densely covered with through holes, and the length of each hole is 20 - 50 mm and the width is 10 - 30 mm.

[0022] Preferably, one end of the linear motor 1 is connected to the pin shaft outside the gas generation box, and the telescopic end of the linear motor 1 is connected to the pin shaft on the side of the feed hopper;

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

[0024] One end of the linear motor 3 is connected to the pin shaft outside the separation box, and the telescopic end of the linear motor 3 is connected to the pin shaft on the side of the earthworm discharge hopper.

[0025] Preferably, the air extractor is installed above the separation box cover. The air extraction pipe is composed of an air extraction main pipe and an air extraction connecting pipe. The air extraction main pipe is installed above the inside of the separation box. One end of the air extraction connecting pipe is connected to the air extraction main pipe through a tee, and the other end is connected to the air inlet of the air extractor;

[0026] The air pump is installed above the separation box cover. The air pipe is composed of an air main pipe and an air connecting pipe. The air main pipe is installed above the inside of the separation box. 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.

[0027] Preferably, the controller is electrically connected to the linear motor 1, the linear motor 2, the linear motor 3, the ammonia sensor, the heating plate, the air extractor, and the air pump.

[0028] The earthworm collection method includes the following steps:

[0029] Step 1: Open the door of the gas generation box, place the ammonia generation raw materials in the heating tank, close the door of the gas generation box, and when the space between the bottom plate and the partition board is filled with the mixture of earthworms and breeding substrate, fix the door of the gas generation box through the locking pin;

[0030] Step 2: Control the feed hopper to open through the controller, load the mixture of earthworms and breeding substrate into the separation box through the opening, and control the feed hopper to close through the controller;

[0031] Step 3: Control the heating plate to be powered on and heated up through the controller to heat the heating tank, causing the raw materials of ammonia inside to react and generate ammonia. Control the air extractor to start through the controller. Under the action of air pressure, ammonia diffuses into the mixture of earthworms and breeding substrate in the separation box through the through holes and air-permeable pads at the bottom of the separation box and diffuses to the upper part of the separation box. When the ammonia sensor senses the ammonia concentration information and feeds it back to the controller, when the ammonia concentration reaches the set upper limit, the controller controls the heating plate to stop heating, the air extractor to stop working, and controls the air pump to start. The two linear motors III open the earthworm discharge hopper. During this process, as the ammonia concentration in the mixture increases, the earthworms will actively escape to the place with a lower ammonia concentration above. After the air pump starts, fresh air is blown into the upper part of the separation box to allow the earthworms to obtain fresh air. After the two linear motors III drive the earthworm discharge hopper to open, the earthworms separated above the partition in the separation box will actively crawl outwards 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 work is completed, remove the earthworm collection box, control the earthworm discharge hopper to close through the controller, and at the same time open the substrate discharge hopper and the feed hopper. Push the substrate in the separation box out from the substrate discharge hopper at the feed hopper, and the substrate falls into the substrate collection box placed below the substrate discharge hopper until all the substrate in the separation box is removed. Control the substrate discharge hopper to close through the controller to complete the substrate collection work.

[0033] (III) Beneficial effects

[0034] The present invention provides an earthworm collection method and device, having the following beneficial effects:

[0035] 1. Utilize the characteristics that earthworms are sensitive to ammonia and will actively escape, and achieve the separation of earthworms and breeding substrate by introducing ammonia. This method is more efficient and gentler on earthworms compared to traditional manual separation or mechanical screening methods, avoiding mechanical damage to earthworms.

[0036] 2. Integrate the gas generation component, separation component, air flow system and control system into one to form a complete automated device. This integrated design realizes the full-process automated 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 partition plate of the separation box are both inclined and densely distributed with through holes. This structure is conducive to the uniform diffusion of ammonia gas, enabling earthworms to more quickly sense ammonia gas and escape. At the same time, it facilitates the smooth sliding out of the base material after separation. The feeding device, discharging device, and collection device are all controlled by linear motors, realizing the automated operations of feeding, discharging, and earthworm collection, improving the convenience and accuracy of the operation, and reducing the tediousness of manual operations.

[0038] 4. The control system real-time senses the ammonia gas concentration in the upper part of the separation box through an ammonia gas sensor and automatically controls the working states of the heating plate, air extractor, and air pump according to the concentration information. This intelligent control method can precisely control the ammonia gas concentration, ensuring the stability and reliability of the separation process, and avoiding the problems of ammonia gas concentration being too high to cause harm to earthworms or too low to result in poor separation effects.

[0039] 5. The air flow system consists of an air extractor and an air pump. The ammonia gas is introduced into the separation box through the air extractor, and fresh air is blown into the separation box through the air pump. This air flow design not only promotes the diffusion of ammonia gas but also provides a suitable environment for earthworms. At the same time, the blowing of fresh air prompts earthworms to actively crawl outwards, further improving the separation effect and the survival rate of earthworms. Description of the Drawings

[0040] Figure 1 is a three-dimensional view of the earthworm collection method and device proposed by the present invention;

[0041] Figure 2 is a three-dimensional view of the gas generation box of the earthworm collection method and device proposed by the present invention;

[0042] Figure 3 is a schematic diagram showing the opening of the door of the gas generation box of the earthworm collection method and device proposed by the present invention;

[0043] Figure 4 is a schematic structural view of the separation box of the earthworm collection method and device proposed by the present invention;

[0044] Figure 5 is a schematic diagram showing the earthworm collection state of the earthworm collection method and device proposed by the present invention;

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

[0046] Figure 7 is a schematic diagram showing the base material collection state of the earthworm collection method and device proposed by the present invention;

[0047] Figure 8 is a schematic structural view of the air flow system of the earthworm collection method and device proposed by the present invention.

[0048] Among them, 1. Gas generation box; 2. Gas generation box door; 3. Lock pin; 4. Heating tank; 5. Heating plate; 6. Separation box; 7. Separation box cover; 8. Bottom plate; 9. Partition board; 10. Linear motor one; 11. Feeding 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. Specific implementation manners

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0050] Embodiment:

[0051] As Figure 1-8 shown, the earthworm collection device provided by the embodiment of the present invention includes a gas generation component, a separation component, an air flow system, and a control system;

[0052] The gas generation component is composed of a gas generation box 1, a gas generation box door 2, a lock pin 3, a heating tank 4, and a heating plate 5;

[0053] The separation component is composed of a separation box 6, a separation box cover 7, a bottom plate 8, a partition board 9, a breathable pad, a feeding device, a discharging device, and a collection device. The feeding device is composed of a linear motor one 10 and a feeding hopper 11, and two linear motors one 10 are provided. The discharging device is composed of a linear motor two 12 and a base material discharge hopper 13, and two linear motors two 12 are provided. The collection device is composed of a linear motor three 14, an earthworm discharge hopper 15, an earthworm collection box 22, and a base material collection box 23, and two linear motors three 14 are provided. The lock pin 3 is used to fix the gas generation box door 2 when the gas generation box door 2 is closed;

[0054] The air flow system is composed of an air extractor 16, an air extraction pipe 17, an air pump 18, and an air pipe 19;

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

[0056] The gas generation box 1 is of a box structure with an opening at the upper part;

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

[0058] The heating tank 4 is a trough-shaped structure made of heat-resistant glass, with an opening at the upper part and is used to place ammonia generation raw materials (such as: the mixture of solid ammonium chloride and slaked lime, etc.) inside;

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

[0060] The separation box 6 is a box structure, and the separation box cover 7 is arranged 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, and at the same time facilitates the discharge of the base material, improving the practicability and stability of the device. The whole device has a compact structure, reasonable design, and is easy to install, operate and maintain;

[0061] Three openings are arranged on both sides of the separation box 6. A feeding hopper 11 is installed outside one opening and is hinged to the separation box 6. A base material discharge hopper 13 is installed outside another opening and is hinged to the separation box 6. An earthworm discharge hopper 15 is installed outside 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 breathable pad is installed above the bottom plate 8.

[0063] The bottom plate 8 is in an inclined manner, with an inclination angle of 75 - 85 degrees. The bottom plate 8 is densely covered with through holes, and the length of each hole is 20 - 50 mm and the width is 10 - 30 mm;

[0064] The partition plate 9 is in an inclined manner, with an inclination angle of 75 - 85 degrees. The partition plate 9 is densely covered with through holes, and the length of each hole is 20 - 50 mm and the width is 10 - 30 mm.

[0065] One end of the linear motor one 10 is connected to the pin shaft outside the gas generation box 1, and the telescopic end of the linear motor one 10 is connected to the pin shaft on the side of the feeding hopper 11. When feeding, the two linear motors one 10 drive the feeding hopper 11 to open, and the earthworm and breeding base material mixture is loaded into the separation box 6 from the feeding hopper 11; when separating earthworms, the two linear motors one 10 drive the feeding hopper 11 to close, making the separation box 6 in a closed state;

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

[0067] One end of the linear motor three 14 is connected to the pin shaft outside the separation box 6, and the telescopic end of the linear motor three 14 is connected to the pin shaft on the side of the earthworm discharge hopper 15. When collecting earthworms, the two linear motors three 14 drive the earthworm discharge hopper 15 to open, and the earthworms separated above the partition plate 9 in the separation box 6 will actively crawl outwards and fall into the earthworm collection box below; when separating earthworms, the two linear motors three 14 drive the earthworm discharge hopper 15 to close, making the separation box 6 in a closed state.

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

[0069] 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. The ammonia gas is introduced into the separation box 6 through the air extractor 16, and fresh air is blown into the separation box 6 through 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 blowing of fresh air promotes the earthworms to actively crawl outwards, further improving the separation effect and the survival rate of earthworms.

[0070] The controller 20 is electrically connected to the linear motor one 10, the linear motor two 12, the linear motor three 14, the ammonia gas sensor 21, the heating plate 5, the air extractor 16, and the air pump 18. The controller 20 is used to control the start and stop of each linear motor, control the heating and stop heating of the heating plate 5, control the start and stop of the air extractor 16, control the start and stop of the air pump 18, and is also used to receive the information of the ammonia gas sensor 21. When the ammonia gas depth above the separation box 6 reaches the set value, the controller 20 controls the heating plate 5 to stop heating and the air extractor 16 to stop working. The ammonia gas sensor 21 is used to sense the ammonia gas concentration in the upper part of the separation box 6 and feedback the concentration signal to the controller 20.

[0071] The earthworm collection method includes the following steps:

[0072] Step 1: Open the gas generation box door 2, place the ammonia gas generation raw materials in the heating tank 4, close the gas generation box door 2, and fix the gas generation box door 2 through the locking pin 3;

[0073] 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 space between the bottom plate 8 and the partition plate 9 is filled with the earthworm and breeding substrate mixture, control the feed hopper 11 to close through the controller 20;

[0074] Step 3: Control the heating plate 5 to be energized and heated up by the controller 20 to heat the heating tank 4, so that the raw materials for ammonia production inside react to produce ammonia. Control the air extractor 16 to start by the controller 20. Under the action of air pressure, the ammonia diffuses into the mixture of earthworms and culture substrate in the separation box 6 through the through holes and air-permeable pads at the bottom of 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 (17mg / m 3 ), the controller 20 controls the heating plate 5 to stop heating, the air extractor 16 to stop working, and controls the air pump 18 to start. The two linear motors III 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 place with lower ammonia concentration above. After the air pump 18 starts, fresh air is blown into the upper part of the separation box 6 to allow the earthworms to obtain fresh air. After the two linear motors III 14 drive the earthworm discharge hopper 15 to open, the earthworms separated above the partition 9 in the separation box 6 will actively crawl outwards and fall into the earthworm collection box 22 placed below the earthworm discharge hopper 15. After all the earthworms above the partition 9 have fallen into the earthworm collection box 22, the earthworm collection work is completed;

[0075] Step 4: After the earthworm collection work is completed, remove the earthworm collection box 22, control the earthworm discharge hopper 15 to close by the controller 20, and at the same time open the substrate discharge hopper 13 and the feed hopper 11. Push the substrate in the separation box 6 out from the substrate discharge hopper 13 at the feed hopper 11. 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 removed. Control the substrate discharge hopper 13 to close by the controller 20 to complete the substrate collection work.

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

Claims

1. Earthworm collection device, comprising a gas generation component, a separation component, an air flow system, and a control system, characterized in that: The gas generation component consists of a gas generation box (1), a gas generation box door (2), a locking pin (3), a heating tank (4), and a heating plate (5); The separation component consists of a separation box (6), a separation box cover (7), a bottom plate (8), a partition plate (9), a breathable pad, a feeding device, a discharging device, and a collection device. The feeding device consists of a linear motor one (10) and a feeding hopper (11). There are two linear motors one (10). The discharging device consists of a linear motor two (12) and a base material discharging hopper (13). There are two linear motors two (12). The collection device consists of a linear motor three (14), an earthworm discharging hopper (15), an earthworm collection box (22), and a base material collection box (23). There are two linear motors three (14); The air flow 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).

2. The earthworm collection device according to claim 1, wherein: The gas generation box (1) is of a box structure with an opening at the upper part; The separation box (6) is fixedly connected to the upper part of the gas generation box (1) by bolts. The heating plate (5) is an electric heating plate and is installed at the inner bottom of the gas generation box (1); The heating tank (4) is of a trough-shaped structure made of heat-resistant glass with an opening at the upper part; The gas generation box door (2) is installed on one side of the gas generation box (1), and its bottom is hinged to the gas generation box (1).

3. The earthworm collection device according to claim 1, wherein: The separation box (6) is of a box structure, and the separation box cover (7) is arranged at the upper part of the separation box (6); There are three openings on both sides of the separation box (6). A feeding hopper (11) is installed outside one of the openings and is hinged to the separation box (6). A base material discharging hopper (13) is installed outside another opening and is hinged to the separation box (6). An earthworm discharging hopper (15) is installed outside 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 plate (9) is fixedly connected to the middle of the separation box (6), and the breathable pad is installed above the bottom plate (8).

4. The earthworm collection device according to claim 3, wherein: The bottom plate (8) is inclined at an angle of 75 - 85 degrees. The bottom plate (8) is densely covered with through holes, and the length of each hole is 20 - 50 mm and the width is 10 - 30 mm; The partition plate (9) is inclined at an angle of 75 - 85 degrees. The partition plate (9) is densely covered with through holes, and the length of each hole is 20 - 50 mm and the width is 10 - 30 mm.

5. The earthworm collection device according to claim 1, characterized in that: One end of the linear motor one (10) is connected to the pin shaft outside the gas generation box (1), and the telescopic end of the linear motor one (10) is connected to the pin shaft on the side of the feeding hopper (11); One end of the linear motor two (12) is connected to the pin shaft outside the gas generation box (1), and the telescopic end of the linear motor two (12) is connected to the pin shaft on the side of the base material discharging hopper (13); One end of the linear motor three (14) is connected to the pin shaft outside the separation box (6), and the telescopic end of the linear motor three (14) is connected to the pin shaft on the side of the earthworm discharge hopper (15).

6. The earthworm collection device according to claim 1, wherein: The air extractor (16) is installed above the separation box cover (7). The air extraction pipe (17) consists of an air extraction main pipe and an air extraction connecting pipe. The air extraction main pipe is installed above the inside of the separation box (6). One end of the air extraction connecting pipe is connected to the air extraction main pipe through a tee, and the other end is connected to the air inlet of the air extractor (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).

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

8. Earthworm collection method, characterized in that, It includes the following steps: Step 1: Open the gas generation box door (2), place the ammonia generation raw materials in the heating tank (4), close the gas generation box door (2), and fix the gas generation box door (2) through 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 space between the bottom plate (8) and the partition plate (9) is filled with the earthworm and breeding substrate mixture, control the feed hopper (11) to close through the controller (20); Step 3: Control the heating plate (5) to be powered on and heated through the controller (20) to heat the heating tank (4), so that the ammonia generation raw materials inside react to generate ammonia. Control the air extractor (16) to start through the controller (20). Under the action of air pressure, the ammonia diffuses into the earthworm and breeding substrate mixture in the separation box (6) through the through holes and the air permeable pad at the bottom of 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 air extractor (16) to stop working, and controls the air pump (18) to start. The two linear motors three (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 place with a lower ammonia concentration above. After the air pump (18) starts, fresh air is blown into the upper part of the separation box (6) to enable the earthworms to obtain fresh air. After the two linear motors three (14) drive the earthworm discharge hopper (15) to open, the earthworms separated above the partition plate (9) in the separation box (6) will actively crawl outwards and fall into the earthworm collection box (22) placed below the earthworm discharge hopper (15). After all the earthworms above the partition plate (9) fall into the earthworm collection box (22), the earthworm collection work is completed; Step 4: After the earthworm collection work is completed, remove the earthworm collection box 22, control the earthworm discharge hopper (15) to close through the controller (20), and at the same time open the base material discharge hopper (13) and the feed hopper (11). Push the base material in the separation box (6) out from the base material discharge hopper (13) at the feed hopper (11). 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. Control the base material discharge hopper (13) to close through the controller (20) to complete the base material collection work.

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