Method for breeding hermetia illucens, breeding tank frame thereof and breeding system thereof

Abstract

The application discloses a black soldier fly breeding method, a breeding tank frame thereof and a breeding system thereof. The black soldier fly breeding method comprises the following steps: adding black soldier fly larvae into a breeding tank, and forming an included angle greater than 0 between the bottom surface of the breeding tank and the horizontal plane; every day, the adjacent breeding areas are connected through an isolation mechanism, the black soldier fly larvae move downwards to other breeding areas, feed is put into the breeding area containing the black soldier fly larvae, the isolation mechanism blocks each breeding area, the connection time of the adjacent two breeding areas is determined based on the average moving speed of the black soldier fly larvae along the first direction and the length of the breeding area along the first direction; the corresponding daily age black soldier fly larvae and feed are put into the topmost breeding area in the breeding tank; the above steps are repeated, and the black soldier fly and the sand mixture in the bottommost breeding area in the breeding tank are collected. The black soldier fly breeding method can reduce the energy consumption and breeding cost in the breeding process, and improve the breeding efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of black soldier fly breeding, and in particular to a black soldier fly breeding method, a breeding tank frame and a breeding system thereof. BACKGROUND

[0002] In the mode of breeding black soldier flies, the traditional mode is to build a breeding tank, place a plastic breeding box or lay a breeding tank with waterproof material, which occupies a large area and space, seriously limits the winter heat preservation and centralized ventilation and deodorization, and each time the worms and materials are discharged, manual or mechanical operation is required, which is low in efficiency and high in energy consumption, thereby limiting the large-scale development of the ground breeding mode.

[0003] The intensive three-dimensional breeding mode adopts a multi-layer breeding box stacking mode or a multi-layer track stacking mode. Each mode requires a large amount of mechanical energy to move the breeding box to feed or discharge, or to move through the track to feed or discharge. The above-mentioned breeding mode has the disadvantages of high precision requirement for mechanical equipment, high energy consumption and high cost. Since the feed of black soldier flies is mainly kitchen waste or fermented material, the breeding environment is high in humidity, ammonia and precision, and the high-precision mechanical equipment is more prone to failure, which affects the overall breeding efficiency.

[0004] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general context in which the application can be practiced. It is not admitted that any of the information provided in this BACKGROUND section constitutes prior art. SUMMARY

[0005] The present application aims to provide a black soldier fly breeding method, which can reduce the energy consumption, breeding cost and equipment failure rate in the breeding process, and improve the breeding efficiency.

[0006] To achieve the above-mentioned purpose, the embodiment of the present application provides a black soldier fly breeding method, comprising the following steps:

[0007] S1, adding black soldier fly larvae into a breeding tank, the bottom surface in the breeding tank forms an included angle greater than 0° with the horizontal plane, the breeding tank comprises a plurality of breeding areas in a first direction in sequence, a separation mechanism is arranged between adjacent breeding areas to control the on-off between adjacent breeding areas, the black soldier fly larvae are dispersed into different breeding areas based on the age of the black soldier fly larvae, the age of the black soldier fly larvae in the plurality of breeding areas increases in the first direction, and feed is fed into the breeding area containing the black soldier fly larvae;

[0008] S2, every day, the adjacent culture zones are connected by the isolation mechanism, the black soldier fly larvae move downwards to other culture zones, and the feed is put into the culture zone containing the black soldier fly larvae, the isolation mechanism blocks each culture zone, and the connection time of the adjacent two culture zones is determined based on the average moving speed of the black soldier fly larvae in the first direction and the length of the culture zone in the first direction;

[0009] S3, the black soldier fly larvae and the feed corresponding to the daily age are put into the topmost culture zone in the culture tank;

[0010] S4, steps S1-S3 are repeated, and the black soldier fly and the sand mixture in the bottommost culture zone in the culture tank are collected.

[0011] In one or more embodiments of the present application, in step S1, the daily age of the black soldier fly larvae is the same, and they are added to the topmost culture zone in the culture tank.

[0012] In one or more embodiments of the present application, in step S2, the step of determining the connection time of the adjacent two culture zones is specifically:

[0013] The connection time of the adjacent two culture zones is the ratio of L to V;

[0014] Wherein, L is the length of the upper culture zone of the adjacent two culture zones in the first direction, and V is the average moving speed of the black soldier fly larvae in the upper culture zone of the adjacent two culture zones in the first direction.

[0015] In one or more embodiments of the present application, the black soldier fly breeding method further comprises:

[0016] Based on the mass of the collected black soldier fly and sand mixture in step S4, the size of the included angle between the bottom surface of the culture tank and the horizontal plane is determined.

[0017] In one or more embodiments of the present application, the black soldier fly breeding method further comprises:

[0018] Based on the amount of black soldier fly larvae and the amount of feed added in steps S1-S3, the threshold value of the range of black soldier fly and sand mixture to be collected on the Nth day is determined;

[0019] When the actual mass of the black soldier fly and sand mixture collected in step S4 on the Nth day is greater than the threshold value of the range of black soldier fly and sand mixture to be collected, the degree of the included angle between the bottom surface of the culture tank and the horizontal plane is reduced;

[0020] When the actual mass of the black soldier fly and sand mixture collected in step S4 on the Nth day is less than the threshold value of the range of black soldier fly and sand mixture to be collected, the degree of the included angle between the bottom surface of the culture tank and the horizontal plane is increased;

[0021] When the actual mass of the collected black soldier fly and sand mixture in step S4 is within the threshold of the payable range of the black soldier fly and sand mixture on the Nth day, the angle between the bottom surface of the breeding tank and the horizontal plane remains unchanged.

[0022] In one or more embodiments of the present application, in steps S1-S4, no feed is added to the bottommost breeding area in the breeding tank.

[0023] Embodiments of the present application also provide a black soldier fly breeding tank frame, which is applied to the black soldier fly breeding method as described above, and the black soldier fly breeding tank frame comprises:

[0024] a support;

[0025] a breeding tank movably installed on the support;

[0026] an isolation mechanism installed on the breeding tank and used to divide the breeding tank into multiple breeding areas;

[0027] an angle adjusting mechanism installed on the support and connected with the breeding tank, and used to adjust the angle of the angle between the bottom surface of the breeding tank and the horizontal plane.

[0028] In one or more embodiments of the present application, the isolation mechanism comprises a driving motor and a partition plate installed in the breeding tank, and the partition plate cooperates with the breeding tank to enclose a breeding area; the driving motor is used to drive the partition plate to move, so as to control the opening and closing of adjacent breeding areas.

[0029] In one or more embodiments of the present application, the angle adjusting mechanism comprises:

[0030] an adjusting motor;

[0031] a screw rod connected with the output end of the adjusting motor;

[0032] a sliding member installed on the breeding tank and threadedly connected with the screw rod;

[0033] wherein the adjusting motor can drive the screw rod to rotate, so that the sliding member moves axially along the screw rod, to adjust the angle of the angle between the bottom surface of the breeding tank and the horizontal plane.

[0034] Embodiments of the present application also provide a black soldier fly breeding system, which comprises:

[0035] a black soldier fly breeding tank frame as described above;

[0036] an automatic feeding mechanism used to add feed to each breeding area in the breeding tank;

[0037] The material collecting mechanism is used for collecting and transporting the black soldier fly and sand mixture output from the bottommost breeding area in the breeding tank.

[0038] Compared with the prior art, the black soldier fly breeding method according to the embodiment of the present application, by placing the black soldier fly larvae in the breeding tank, the bottom surface of the breeding tank is arranged at an angle greater than 0° with the horizontal plane (that is, it can be considered that the black soldier fly larvae are placed in the breeding tank with the bottom surface arranged at an angle, and the breeding tank has a plurality of breeding areas, and the average daily age of the black soldier fly larvae in different breeding areas is different), every day, the adjacent breeding areas are connected for a certain time, and the black soldier fly larvae will automatically move from the upper breeding area to the lower breeding area under their own habits (peristalsis), after the connection time is reached, the adjacent breeding areas are separated, that is, the black soldier fly larvae are used to push themselves and the feed to the breeding area at the bottom of the breeding tank, and the larvae are automatically discharged, automatic breeding is realized, the breeding energy consumption is reduced, and the cost is reduced, and the efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a flowchart of the black soldier fly breeding method according to an embodiment of the present application;

[0040] Figure 2 is a schematic diagram of the black soldier fly breeding method according to an embodiment of the present application;

[0041] Figure 3 is a flowchart of the black soldier fly breeding method according to an embodiment of the present application;

[0042] Figure 4 is a flowchart of step S5 in the black soldier fly breeding method according to an embodiment of the present application;

[0043] Figure 5 is a schematic diagram of the black soldier fly breeding tank frame according to an embodiment of the present application;

[0044] Figure 6 is a partial front view of the black soldier fly breeding tank frame according to an embodiment of the present application;

[0045] Figure 7 is a partial top view of the black soldier fly breeding tank frame according to an embodiment of the present application (the tank cover is hidden in the figure);

[0046] Figure 8 is a partial sectional view of the connection between the breeding tank and the fixing rod in the black soldier fly breeding tank frame according to an embodiment of the present application.

[0047] MAIN REFERENCE NUMERALS EXPLANATION:

[0048] 1. Support frame; 11. Base; 12. Fixing rod; 121. Slide rail; 13. Movable rod; 2. Breeding trough; 21. Tank body; 22. Tank cover; 23. Sliding block; 24. Breeding area; 3. Isolation mechanism; 31. Drive motor; 32. Partition plate; 33. Connecting rod; 34. Transmission assembly; 4. Angle adjustment mechanism; 41. Adjusting motor; 42. Screw; 43. Sliding component; 5. Discharge mechanism. Detailed Implementation

[0049] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0050] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0051] like Figure 1 and 2 As shown, a black soldier fly larvae farming method according to a preferred embodiment of the present invention includes the following steps:

[0052] S1. Black soldier fly larvae are added to a rearing tank. The bottom of the rearing tank forms an angle greater than 0° with the horizontal plane. The rearing tank includes multiple rearing zones in sequence along the first direction. An isolation mechanism is provided between adjacent rearing zones to control the connection between adjacent rearing zones. Based on the age of the black soldier fly larvae, the black soldier fly larvae are dispersed into different rearing zones. Along the first direction, the age of the black soldier fly larvae in the multiple rearing zones increases. Feed is added to the rearing zone containing the black soldier fly larvae.

[0053] It is understood that, relative to the horizontal plane, the bottom surface of the aquaculture tank can be considered as a slope, and the first direction can be considered as a direction parallel to the bottom surface, that is, the first direction can be considered as the direction from the top of the slope to the bottom of the slope. In this invention, the top and bottom are defined based on the vertical direction. Adjacent aquaculture areas in this invention refer to those adjacent along the first direction.

[0054] In the present embodiment, the culture tank can include multiple culture zones, and the instar of the black soldier fly larvae in each culture zone can differ by one day. For example, the culture tank can include seven culture zones from top to bottom along the first direction, the culture zone at the top of the culture tank can be named as the one-day-old culture zone, the adjacent culture zone can be named as the two-day-old culture zone, and so on, and the culture zone at the bottom of the culture tank can be named as the seven-day-old culture zone. The one-day-old culture zone is placed with the black soldier fly larvae with the smallest age, the two-day-old culture zone is placed with the black soldier fly larvae with the age of the black soldier fly larvae in the one-day-old culture zone plus one day, and so on. For example, if the black soldier fly larvae in the one-day-old culture zone are one-day-old black soldier fly larvae or 0-1 day-old black soldier fly larvae, the black soldier fly larvae in the two-day-old culture zone are two-day-old black soldier fly larvae or 1-2 day-old black soldier fly larvae. That is, the age of the black soldier fly larvae in each culture zone can be a specific age (such as 1 day, 2 days, etc.) or a range of ages (such as 0-1 day, 1-3 days, etc.). The age of the black soldier fly larvae in each culture zone can be customized according to actual breeding needs.

[0055] The isolation mechanism is movable or detachable, and the purpose is to control the connection or isolation of the culture zones. Specifically, the isolation mechanism can be an automatic control mode, that is, controlled by automatic equipment such as an electric valve; or a manual control mode, for example, the isolation mechanism is a partition, and the operator can control the connection or isolation of the culture zones by moving the partition.

[0056] Further, in step S1, the black soldier fly larvae have the same age and are added to the culture zone at the top of the culture tank. In this way, the black soldier fly larvae are conveniently fed.

[0057] In other embodiments, in step S1, the black soldier fly larvae can have different ages, and they are respectively fed into the corresponding culture zones according to the age.

[0058] S2, every day, the adjacent culture zones are connected by the isolation mechanism, the black soldier fly larvae move downward to other culture zones, feed is fed into the culture zone containing the black soldier fly larvae, the isolation mechanism blocks the culture zones, and based on the average moving speed of the black soldier fly larvae along the first direction and the length of the culture zone along the first direction, the connection time of the adjacent two culture zones is determined.

[0059] After the adjacent cultivation zones are connected, the black soldier fly larvae will move downwards to other cultivation zones under the action of their peristaltic movement. In general, in order to facilitate the continuity of cultivation, the connection time of adjacent two cultivation zones can be controlled, so that most of the black soldier fly larvae in one cultivation zone move to the next cultivation zone. After the connection time of adjacent two cultivation zones is reached, the isolation mechanism blocks the adjacent two cultivation zones. The on-off time between each cultivation zone and the adjacent cultivation zone can be the same or different, according to the actual situation.

[0060] Specifically, the connection time of adjacent two cultivation zones can be determined based on the average moving speed of the black soldier fly larvae along the first direction and the length of the cultivation zone along the first direction. The inventors made the following experiment to obtain the average moving speed of the black soldier fly larvae along the first direction. The same age black soldier fly larvae were placed in one cultivation zone in the cultivation tank and fed with feed. After one day, the adjacent cultivation zones were connected by the isolation mechanism. The experiment was repeated several times, and the age of the black soldier fly larvae and the angle of the cultivation tank were changed each time. The data are shown in the following table:

[0061] Table 1: Moving speed data table of black soldier fly larvae

[0062]

[0063] Note: The moving speed in this table is measured with kitchen waste with a water content of 75% as feed. Different water content, different sources and different types of materials will cause large differences in the movement of black soldier fly larvae.

[0064] Among them, the angle of the cultivation tank is the angle between the bottom surface of the cultivation tank and the horizontal plane, and the above moving speed is the average moving speed.

[0065] As can be seen from Table 1, the older the black soldier fly larvae, the faster they move, and the larger the angle between the bottom surface of the cultivation tank and the horizontal plane, the faster the black soldier fly larvae move.

[0066] Since a large number of black soldier fly larvae are put into each breeding area, and there are individual differences among the black soldier fly larvae even if they are of the same age, there are bound to be black soldier fly larvae that move fast and black soldier fly larvae that move slowly among the black soldier fly larvae of the same age. Therefore, the time for connecting the two adjacent breeding areas is controlled, and the time for connecting the two adjacent breeding areas is only required to enable most of the black soldier fly larvae in the breeding area to move to the next breeding area. Taking seven breeding areas as an example, and only 1-day-old black soldier fly larvae are put into the topmost breeding area on the first day, the black soldier fly larvae collected at the end of the seventh day are theoretically 8-day-old black soldier fly larvae, but as long as the age of the black soldier fly larvae in the bottommost breeding area is 5-10 days, the black soldier fly larvae can be collected.

[0067] Further, in step S2, the time for connecting the two adjacent breeding areas is determined as follows:

[0068] The time for connecting the two adjacent breeding areas is the ratio of L to V, wherein L is the length of the breeding area located above along the first direction, and V is the average moving speed of the black soldier fly larvae in the breeding area located above along the first direction.

[0069] It can be understood that, in step S2, when the two adjacent breeding areas are connected, since an angle greater than 0° is formed between the bottom surface of the breeding tank and the horizontal plane, when the feed is added to each breeding area, the feed also has a downward moving tendency under the action of the angle. The black soldier fly larvae live in the mixture of the feed and excrement, and therefore, the addition of the feed can also improve the moving efficiency of the black soldier fly larvae.

[0070] It can be understood that the time for connecting the two adjacent breeding areas is the ratio of L to V, and it is not required to be very strict. The time for connecting the two adjacent breeding areas can be within a certain allowable error time, for example, the ratio of L to V is 2 h, and the time for connecting the two adjacent breeding areas can be 2 h, 1.8 h, 1.9 h, 2.15 h, 2.2 h, etc. as long as the allowable error time is not too large.

[0071] S3, put the corresponding age of black soldier fly larvae and feed into the topmost breeding area of the breeding tank.

[0072] S4, repeat steps S1-S3, and collect the black soldier fly larvae and sand mixture in the bottommost breeding area of the breeding tank.

[0073] The repeated steps S1-S3 can ensure the continuity of the breeding and improve the breeding efficiency.

[0074] It can be understood that the sidewall in the bottommost breeding area in the culture tank can be a movable plate or a controllable valve, and a material collecting mechanism such as a conveyor belt can be arranged below the sidewall. When collecting the black soldier fly and sand mixture in the bottommost breeding area in the culture tank, the sidewall in the bottommost breeding area in the culture tank is opened, and under the action of the self-peristaltic property of the black soldier fly, the black soldier fly with the sand mixture will actively enter the material collecting mechanism. Unlike the prior art, the black soldier fly and sand mixture do not need to be removed from the culture tank by turning over the culture tank or other tools, which facilitates the collection process of the black soldier fly and sand mixture, improves the efficiency, reduces the energy consumption, and realizes a continuous breeding process.

[0075] In a specific implementation process, as shown in Figure 3 and Figure 4 , the black soldier fly breeding method further comprises:

[0076] S5, based on the quality of the collected black soldier fly and sand mixture in step S4, the angle between the bottom surface of the culture tank and the horizontal plane is determined.

[0077] It can be understood that according to the data in Table 1, the angle between the bottom wall and the horizontal plane can affect the moving speed of the black soldier fly larvae. In order to ensure the continuity of the black soldier fly breeding method of the present application, the angle between the bottom surface of the culture tank and the horizontal plane can be controlled according to the quality of the collected black soldier fly and sand mixture in step S4.

[0078] As shown in Figure 4 , specifically, the method for controlling the angle between the bottom surface of the culture tank and the horizontal plane can include:

[0079] S51, based on the amount of black soldier fly larvae added in steps S1-S3 and the amount of feed added, the expected range threshold of black soldier fly and sand mixture on the Nth day is determined.

[0080] S52, when the actual quality of the collected black soldier fly and sand mixture in step S4 on the Nth day is greater than the expected range threshold of black soldier fly and sand mixture, the angle between the bottom surface of the culture tank and the horizontal plane is reduced.

[0081] S53, when the actual quality of the collected black soldier fly and sand mixture in step S4 on the Nth day is less than the expected range threshold of black soldier fly and sand mixture, the angle between the bottom surface of the culture tank and the horizontal plane is increased.

[0082] S54, when the actual quality of the collected black soldier fly and sand mixture in step S4 on the Nth day is within the expected range threshold of black soldier fly and sand mixture, the angle between the bottom surface of the culture tank and the horizontal plane is unchanged.

[0083] It is understandable that the acceptable range threshold for the black soldier fly and insect sand mixture can be considered as a single value, namely the total weight of the black soldier fly and insect sand mixture; the acceptable range threshold can also include two values, namely the weight of the black soldier fly and the weight of the insect sand mixture.

[0084] For example, a breeding tank may contain seven breeding zones. On the first day, only the topmost breeding zone contains 1 kg of one-day-old black soldier fly larvae and 100 kg of feed (with a moisture content of approximately 75% wt, i.e., a solid content of approximately 25% wt). The same feed is added daily thereafter. After the 7th day, the acceptable range for the black soldier fly and insect-sand mixture collected in step S4 is 40–48 kg (with a moisture content of approximately 40–45% wt). It is understood that the acceptable range can be adjusted appropriately based on the age of the black soldier fly larvae and the specific composition of the material. For example, in the above case, the acceptable range for the black soldier fly and insect-sand mixture collected in step S4 could be adjusted to 41–47 kg (with a moisture content of approximately 41–45% wt), or 39–47 kg (with a moisture content of approximately 39–46% wt), or 42–45 kg (with a moisture content of approximately 43–45% wt), etc.

[0085] In one specific implementation, during steps S1 to S4, no feed is ever added to the bottom breeding area of ​​the breeding tank.

[0086] This setup is designed to allow the black soldier fly larvae in the bottom breeding area of ​​the tank to digest the feed and other substances they consume as much as possible, and also to facilitate the separation and processing of the black soldier fly larvae and the mixture of insects and sand when collecting them.

[0087] like Figures 5 to 8 As shown, an embodiment of the present invention also provides a black soldier fly fry breeding tank 2 frame, applied to the black soldier fly fry breeding method described above. The black soldier fly fry breeding tank 2 frame includes a support 1, a breeding tank 2, an isolation mechanism 3, and an angle adjustment mechanism 4: the breeding tank 2 is movably mounted on the support 1; the isolation mechanism 3 is mounted on the breeding tank 2 and is used to divide the breeding tank 2 into multiple breeding areas 24; the angle adjustment mechanism 4 is mounted on the support 1 and connected to the breeding tank 2, and is used to adjust the angle between the bottom surface of the breeding tank 2 and the horizontal plane.

[0088] The breeding tank 2 may include a tank body 21 and a tank cover 22. The tank cover 22 is movably installed on the tank body 21 to prevent black soldier fly larvae from moving out of the breeding tank 2. When it is necessary to feed into the breeding tank 2, the tank cover 22 can be opened to put black soldier fly larvae or feed into the tank body 21.

[0089] like Figure 5As shown, in an embodiment, the support 1 can include a base 11, a fixed rod 12 fixedly connected to the base 11, and a movable rod 13 rotatably connected to the base 11, the fixed rod 12 is connected to one end of the breeding tank 2 along the first direction, the movable rod 13 is connected to the other end of the breeding tank 2 along the first direction, and the angle adjusting mechanism 4 can be arranged on the base 11.

[0090] Further, the two sides of the fixed rod 12 and the movable rod 13 can be respectively connected with a plurality of breeding tanks 2, so that the black soldier fly breeding tank 2 is in a tree structure, the required space for breeding is saved, and the breeding efficiency is improved.

[0091] As shown, Figure 5 The end of the breeding tank 2 close to the movable rod 13 can have an opening, and a discharging mechanism 5 can be installed at the opening. In the embodiment as shown, the discharging mechanism 5 is the same as the isolation mechanism 3. In other embodiments, the discharging mechanism 5 can also be an electric control valve or other device, as long as it can control the opening and closing of the opening, so as to control the automatic discharging of the breeding tank 2.

[0092] Specifically, the angle adjusting mechanism 4 includes an adjusting motor 41, a screw rod 42, and a sliding piece 43; the screw rod 42 is connected to the output end of the adjusting motor 41; the sliding piece 43 is installed on the breeding tank 2 and is threadedly connected to the screw rod 42; and the adjusting motor 41 can drive the screw rod 42 to rotate, so that the sliding piece 43 moves axially along the screw rod 42, to adjust the angle of the included angle between the bottom surface in the breeding tank 2 and the horizontal plane.

[0093] In this way, when the adjusting motor 41 is started, the screw rod 42 is driven to rotate, so that the sliding piece 43 moves axially along the screw rod 42, the sliding piece 43 drives the one end of the breeding tank 2 along the first direction to move, and the other end of the breeding tank 2 along the first direction rotates together with the movable rod 13 relative to the base 11, so as to adjust the angle of the included angle between the bottom surface in the breeding tank 2 and the horizontal plane.

[0094] Specifically, as shown, Figure 8 The fixed rod 12 can be provided with a sliding rail 121, and the one end of the breeding tank 2 along the first direction can be slidably connected with a sliding block 23, the sliding block 23 is slidably connected with the sliding rail 121, so as to limit and support the breeding tank 2. The sliding direction of the sliding block 23 on the breeding tank 2 can be the first direction, and the sliding block 23 can be signed

[0095] In other embodiments, the angle adjusting mechanism 4 can also include a pneumatic cylinder, the piston rod of the pneumatic cylinder is connected with the breeding tank 2, so as to adjust the angle of the included angle between the bottom surface in the breeding tank 2 and the horizontal plane. Or the angle adjusting mechanism 4 can also have other structures as long as it can adjust the vertical height of the one end of the breeding tank 2, so as to adjust the angle of the included angle between the bottom surface in the breeding tank 2 and the horizontal plane.

[0096] As shown in Figure 6 and Figure 7 In an embodiment, the isolation mechanism 3 comprises a driving motor 31 and a partition plate 32 movably installed in the breeding tank 2, the partition plate 32 cooperates with the breeding tank 2 to form the breeding area 24; the driving motor 31 is used to drive the partition plate 32 to move, so as to control the opening and closing of the adjacent breeding area 24.

[0097] That is, the isolation mechanism 3 can be considered as an automatic shutter or an automatic valve, as long as it can control the opening and closing of the adjacent breeding area 24.

[0098] Specifically, the isolation mechanism 3 can further comprise a connecting rod 33 connected to the output end of the driving motor 31 and a transmission assembly 34, the screw rod 42 is connected to the partition plate 32 through the transmission assembly 34, so as to control the rotation of the partition plate 32 in the breeding tank 2, so that the partition plate 32 cooperates with the inner wall of the breeding tank 2 to realize the control of the opening and closing of the adjacent breeding area 24.

[0099] Specifically, the transmission assembly 34 can comprise a first bevel gear set, a second bevel gear set and a rotating rod, the partition plate 32 is rotatably arranged on the inner wall of the breeding tank 2, the first bevel gear set comprises two bevel gears respectively sleeved on the rotating rod and the connecting rod 33, and the two bevel gears of the first bevel gear set are meshed with each other. The second bevel gear set comprises two bevel gears respectively sleeved on the rotating rod and the partition plate 32 fixedly connected with the partition plate 32, and the two bevel gears of the second bevel gear set are meshed with each other. In this way, when the driving motor 31 drives the connecting rod 33 to rotate, the cooperation of the first bevel gear set, the second bevel gear set and the rotating rod can control the rotation of the partition plate 32.

[0100] The embodiment of the present application also provides a black soldier fly breeding system, which comprises the black soldier fly breeding tank 2 frame, the automatic feeding mechanism and the material collecting mechanism as described above; the automatic feeding mechanism is used to add feed to each breeding area 24 in the breeding tank 2; and the material collecting mechanism is used to collect and transport the black soldier fly and the sand mixture output by the breeding area 24 at the bottom of the breeding tank 2.

[0101] Specifically, the automatic feeding mechanism can be a feeding robot or a commercial equipment directly purchased on the market, as long as it can add feed and black soldier fly larvae into the breeding tank 2.

[0102] Specifically, the material collecting mechanism can be a conveyor belt, or other material collecting mechanisms that can be purchased on the market, as long as it can collect and transport the black soldier fly and the sand mixture output by the breeding area 24 at the bottom of the breeding tank 2. In summary, compared with the prior art, the black soldier fly breeding method, the breeding tank frame and the breeding system of the present application have the following advantages:

[0103] (1) Cultivation warehouse inside installation arbitrary group of black water fly cultivation system, modular design, can be according to site and cultivation scale arbitrary assembly combination, when not use, can be disassembled and moved transportation.

[0104] (2) Cultivation tank frame is tree design, effectively utilizes the cultivation space, and both sides have no block, facilitate mechanical equipment to and fro operation, each layer discharge can fall to the most lower layer material receiving mechanism (such as conveyer belt). Multilayer structure, utilizes the cultivation space, realizes to workshop and reasonable utilization, facilitate management and environmental control, reduces the cultivation cost.

[0105] (3) Cultivation tank adopts ramp design (cultivation tank's bottom wall and horizontal plane has included angle), when using angle lifting mechanism adjusts the included angle angle, utilizes the sliding property of feed and the automatic sinking of black water fly, adopts isolation mechanism (such as automatic gate or electric control valve) black water fly's moving speed, realizes black water fly automatic feeding discharge no mechanical no power saving investment and cost.

[0106] (4) Isolation mechanism is installed on cultivation tank, and at least part is located between each cultivation area in cultivation tank, through isolation mechanism opening and closing mode, reaches the control of larva and material's moving displacement distance.

[0107] (5) Angle adjusting mechanism is installed in one end of cultivation tank, adopts screw rod and sliding piece to connect all cultivation tanks, through adjusting motor to adjust the height of sliding piece, changes the included angle between cultivation tank body and horizontal plane, namely changes the included angle of cultivation tank's bottom wall and horizontal plane, so that black water fly larva and feed reach the required moving speed.

[0108] The foregoing description of specific exemplary embodiments of the application will be better understood with regard to the following examples. These examples are included to illustrate and provide context for the application. These examples should not be construed as limiting the application to the precise conditions used in the examples. Many modifications and variations will be apparent to those of ordinary skill in the art upon reading this disclosure. It is intended to cover all such modifications and variations as fall within the scope of the application. It is intended that the scope of the application shall be limited by the claims and the full scope of equivalents to which such claims are entitled.

Claims

1. A method for breeding black soldier fly, characterized by, The method comprises the following steps: S1, adding black soldier fly larvae into a breeding tank, the bottom surface of the breeding tank forms an angle greater than 0° with the horizontal plane, the breeding tank comprises a plurality of breeding areas along a first direction, a separation mechanism is arranged between adjacent breeding areas to control the connection and disconnection between adjacent breeding areas, the black soldier fly larvae are dispersed into different breeding areas according to the age of the black soldier fly larvae, the age of the black soldier fly larvae in the plurality of breeding areas increases along the first direction, and feed is added into the breeding area containing the black soldier fly larvae; S2, every day, the adjacent breeding areas are connected through the separation mechanism, the black soldier fly larvae move from the upper breeding area to the lower breeding area under their own habits, feed is added into the breeding area containing the black soldier fly larvae, the separation mechanism blocks each breeding area, the connection time of the adjacent two breeding areas is determined based on the average moving speed of the black soldier fly larvae along the first direction and the length of the breeding area along the first direction; S3, the corresponding age of the black soldier fly larvae and the feed are added into the topmost breeding area in the breeding tank; S4, steps S1-S3 are repeated, and the black soldier fly and sand mixture in the bottommost breeding area in the breeding tank is collected; The black soldier fly breeding method further comprises: The angle between the bottom surface of the breeding tank and the horizontal plane is determined based on the mass of the collected black soldier fly and sand mixture in step S4; The black soldier fly breeding method further comprises: The threshold value of the black soldier fly and sand mixture collected on the Nth day is determined based on the amount of the black soldier fly larvae and the amount of the feed in steps S1-S3; When the actual mass of the black soldier fly and sand mixture collected in step S4 is greater than the threshold value of the black soldier fly and sand mixture on the Nth day, the angle between the bottom surface of the breeding tank and the horizontal plane is reduced; When the actual mass of the black soldier fly and sand mixture collected in step S4 is less than the threshold value of the black soldier fly and sand mixture on the Nth day, the angle between the bottom surface of the breeding tank and the horizontal plane is increased; When the actual mass of the black soldier fly and sand mixture collected in step S4 is within the threshold value of the black soldier fly and sand mixture on the Nth day, the angle between the bottom surface of the breeding tank and the horizontal plane remains unchanged.

2. The method of claim 1, wherein the black soldier fly is Hermetia illucens. In step S1, the black soldier fly larvae have the same age and are added into the topmost breeding area in the breeding tank.

3. The method of claim 1, wherein the black soldier fly is raised in a container. In step S2, the connection time of the adjacent two breeding areas is determined as follows: The connection time of the adjacent two breeding areas is the ratio of L to V; Wherein, L is the length of the upper breeding area of the adjacent two breeding areas along the first direction, and V is the average moving speed of the black soldier fly larvae in the upper breeding area of the adjacent two breeding areas along the first direction.

4. The method of claim 1, wherein the black soldier fly is a larva. In steps S1-S4, no feed is added into the bottommost breeding area in the breeding tank.

5. A black soldier fly breeding tank frame applied to the black soldier fly breeding method according to any one of claims 1 to 4, characterized in that, The black soldier fly breeding tank frame comprises: a support; a breeding tank movably installed on the support; a separation mechanism installed on the breeding tank for separating the breeding tank into a plurality of breeding areas; An angle adjusting mechanism is installed on the support and connected with the culture tank, and is used to adjust the angle between the bottom surface in the culture tank and the horizontal plane.

6. The black soldier fly breeding tank frame of claim 5, wherein, The isolation mechanism comprises a driving motor and a movable partition plate installed in the culture tank, and the partition plate cooperates with the culture tank to form a culture area; the driving motor is used to drive the partition plate to move, so as to control the opening and closing of the adjacent culture area.

7. The black soldier fly breeding tank frame of claim 5, wherein, The angle adjusting mechanism comprises: an adjusting motor; a screw rod connected with the output end of the adjusting motor; a sliding member installed on the culture tank and threadedly connected with the screw rod; wherein the adjusting motor can drive the screw rod to rotate, so that the sliding member moves axially along the screw rod, to adjust the angle between the bottom surface in the culture tank and the horizontal plane.

8. A black soldier fly farming system, characterized in that, It comprises: the black soldier fly culture tank support according to any one of claims 5-7; an automatic feeding mechanism for adding feed to each culture area in the culture tank; a material collecting mechanism for collecting and transporting the black soldier fly and sand mixture output from the bottom culture area in the culture tank.

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