A circulating scraper type automatic black soldier fly breeding system and breeding method thereof

Abstract

The present invention relates to a circulating scraper type automatic black soldier fly breeding system and a breeding method thereof, comprising two scraper breeding devices arranged side by side and a material in-out and circulating conveying device; the scraper breeding device is used for storing, conveying and turning materials, and comprises a supporting frame, a breeding mechanism and an automatic scraping mechanism; the supporting frame is used for installing the breeding mechanism and the automatic scraping mechanism; the breeding mechanism is used for storing materials, and comprises at least two groups of breeding units; the automatic scraping mechanism is used for pushing the materials in the upper and lower material bottom plates, and comprises at least two groups of scraping units; the material in-out and circulating conveying device is used for conveying materials, and comprises a feeding lifting device, a circulating lifting device and a discharging lifting device. The present invention can integrate feeding, breeding, turning and discharging cycles into one, and internally circulate and turn materials, which is beneficial to heat dissipation and oxygen supply of breeding feed, improves insect output efficiency, and reduces equipment investment costs.

Description

Technical Field

[0001] The invention relates to a circulating scraper type automatic black soldier fly breeding system and a breeding method thereof, belonging to the technical field of black soldier fly breeding. Background Art

[0002] The organic solid residues of food waste can be quickly consumed by breeding insects such as black soldier flies and mealworms, and the food chain can be transformed into high-value insect protein. Since insect protein is rich in nutrients such as antimicrobial peptides and chitin, it is widely used in feed production, ecological breeding, nutrition and health care, medicine and industry. The residues can be deeply developed and utilized as an important source of high-quality organic fertilizer, which can effectively solve the problem of waste of organic solid residue resources and shortage of protein in the market.

[0003] Black soldier flies can be farmed artificially or by semi-mechanized extensive farming. Artificial farming and semi-mechanized farming are suitable for small-scale farming. The overall level of automation is limited, and the labor cost is high and the land area is large. The farming equipment has problems such as low cloth scraping efficiency, easy escape of insects, and large land area, which cannot meet the requirements of large-scale and stable production operations.

[0004] Stereo box farming is the current trend of automated intelligent farming because of its small footprint. As disclosed in CN213848291U, "A Smart Black Soldier Fly Stereo Farming Warehouse", during the use of the smart black soldier fly stereo farming warehouse, the prepared black soldier fly feed is added to the feed storage set on the automatic feed adding device through the feed adding inlet, and the operator controls the automatic feed adding device to move on the guide rail through the central controller, so that the automatic feed adding device moves to the farming box where feed needs to be added; finally, the automatic feed adding device adjusts the height of the feeder so that the discharge pipe on the feeder is aligned with the farming box, and the feed is added to the farming box in a timely and quantitative manner. This stereo farming can achieve the timed and quantitative addition of feed to the farming box, but the material cannot be turned over during the farming process, and oxygen cannot be added to the farming feed in time, especially the heat produced during the farming process cannot be dissipated in time, which is not conducive to the larvae eating, resulting in a low worm production rate. In addition, after the farming is completed, each farming box needs to be taken out from the storage area of ​​the stereo storage area, transported to a specific point for unloading and enters the subsequent screening system, which is cumbersome to operate.

[0005] The "New Black Soldier Fly Automated Breeding Line and Transfer Method" disclosed in CN113439714A is to connect the breeding area and the operating area end to end through a transfer mechanism to form a closed transfer loop. In the breeding area, the breeding unit formed by stacking multiple breeding boxes up and down can be loaded and unloaded on a carrying trolley, and is moved and set on the breeding track by the carrying trolley; the operating area is connected in series with a depalletizer, a screening mechanism and a stacker on the conveyor line. The transfer mechanism adopts a transfer track, a transplanting translation vehicle and a propulsion mechanism. The transfer mechanism is respectively arranged at both ends of the breeding track and the conveyor line, and is connected with them end to end to form a closed-loop transfer channel. The multiple breeding boxes stacked in the breeding area are sent to the operating area by the transplanting translation vehicle for depalletizing and unloading to the screening mechanism. The breeding boxes are then transported to the automatic feeding device through the conveyor line for feed and larvae addition. After the breeding boxes are stacked by the stacker, they are sent to the breeding track by the transplanting translation vehicle and enter the breeding area. Similarly, the black soldier fly automated breeding uses stacked breeding boxes, and the breeding process cannot realize the material turning, which is not conducive to the supply of oxygen in the breeding feed. In addition, the heat dissipation effect is poor, resulting in a low insect production rate. Secondly, the assembly line requires a depalletizer, a stacker, and a transfer mechanism, which is not only cumbersome to operate when adding and discharging materials, but also has high investment costs for breeding equipment. Therefore, the current engineering breeding equipment has the problems of low cloth scraping efficiency and difficult back-end transportation and screening. Summary of the invention

[0006] The purpose of the present invention is to provide a circulating scraper type automatic black soldier fly breeding system and a breeding method thereof which can integrate feeding, breeding, turning and discharging cycles into one, perform internal circulation and turning of materials, be beneficial to heat dissipation and oxygen supply of breeding feed, improve insect output efficiency, and reduce equipment investment cost.

[0007] The technical solution of the present invention to achieve the above-mentioned object is: a circulating scraper type automatic black soldier fly breeding system, characterized in that it includes two scraper breeding devices arranged side by side and a material inlet and outlet and circulating conveying device;

[0008] The scraper farming device is used to store, transport and turn materials, including a supporting frame, a farming mechanism and an automatic scraping mechanism;

[0009] The support frame is used to install the breeding mechanism and the automatic scraping mechanism, and the two ends of the support frame are respectively provided with a head seat and a tail seat;

[0010] The breeding mechanism is used to store materials, including at least two groups of breeding units, which are arranged in height and installed on the supporting frame, and each group of breeding units is provided with a ventilation window on the top; each group of breeding units includes two outer plates and an upper and lower material drop bottom plate arranged above and below, and the outer plates are installed on the front and rear sides of the upper and lower material drop bottom plates; the feeding side of the lower material drop bottom plate exceeds the discharging side of the upper material drop bottom plate and is used to receive the discharged and falling materials, the discharging side of the upper lower material drop bottom plate of the adjacent breeding units exceeds the feeding side of the lower upper material drop bottom plate and is used to receive the discharged and falling materials, a feeding port is provided on one side of the top cover of the supporting frame, and a material drop port and a discharging port are provided on the lower material drop bottom plate at the bottom, and an electric gate is installed on the lower material drop bottom plate or the supporting frame, and the electric gate controls the closing and opening of the discharging port;

[0011] The automatic scraping mechanism is used to push the materials in the upper and lower material-dropping bottom plates, and includes at least two groups of scraping units, the scraping units correspond to the respective breeding units, and the scraping units include a motor, a chain transmission mechanism and a plurality of scrapers; the motor installed on the head seat is connected to the driving shaft, the driving shaft is installed on the fixed bearing seat through a bearing, the fixed bearing seat is installed on the head seat, the driven shaft is installed on the movable bearing seat through a bearing, and the movable bearing seat is installed on the tail seat;

[0012] The chain transmission mechanism consists of two groups, two active sprockets are installed on the front and rear sides of the active shaft, two passive sprockets are installed on the front and rear sides of the passive shaft, chains are installed on the corresponding active sprockets and passive sprockets, and scrapers are installed on the two chains at intervals. The scraper on the upper part of the chain is located on the upper part of the upper drop material bottom plate for pushing the material on the upper drop material bottom plate, and the scraper on the lower part of the chain is located on the upper part of the lower drop material bottom plate for pushing the material on the lower drop material bottom plate;

[0013] The material in-and-out and circulation conveying device is used to convey the materials, including a feed lifting device, a circulation lifting device and a discharge lifting device;

[0014] The feed lifting device is used for feeding and circulating the materials in the two scraper breeding devices. The feed lifting device is provided with a feed feeding port and a larvae feeding port on the front side. The feed lifting device passes through the bottom of the front scraper breeding device and extends upward to the top of the rear scraper breeding device. The circulating material dropping port of the feed lifting device is connected with the material dropping port on the lower material dropping bottom plate of the front scraper breeding device, and the circulating material discharge port is connected with the material feeding port of the rear scraper breeding device.

[0015] The circulation lifting device is used to transport the materials of the rear scraper farming device to the front scraper farming device. The rear end of the circulation lifting device is arranged at the bottom of the rear scraper farming device, and the front end is arranged at the top of the front scraper farming device. The lower inlet on the circulation lifting device is connected to the material drop opening on the lower drop bottom plate of the rear scraper farming device, and the upper outlet is connected to the material inlet on the front scraper farming device.

[0016] The discharge lifting device is used to transport the materials discharged by the two scraper breeding devices. The rear side of the discharge lifting device is arranged at the bottom of the two scraper breeding devices. The feed port on the discharge lifting device is connected to the discharge port of at least one scraper breeding device, and the discharge port is connected to the screening system.

[0017] The breeding method of a circulating scraper type automatic black soldier fly breeding device of the present invention is characterized by: performing the following steps:

[0018] ⑴, loading;

[0019] The motors on the feed lifting device, the circulation lifting device and the two scraper breeding devices are started, the screw pump adds the feed into the feed lifting device from the feed feeding port according to the amount, the larvae feeder adds the mixture of larvae and auxiliary materials into the feed lifting device from the larvae feeding port according to the amount, the feed lifting device lifts the material and adds it from the feeding port of the rear scraper breeding device, the scraper in the rear scraper breeding device runs with the chain, pushes the material falling on the upper drop bottom plate to the discharge side and falls onto the lower drop bottom plate, the scraper continues to push the material on the lower drop bottom plate to the discharge side and falls into the next group of breeding units, and the material is sequentially pushed from Pushing from top to bottom, the material falls from the drop opening on the bottom drop plate into the lower inlet of the circulation lifting device. The circulation lifting device lifts the material to the inlet of the front scraper breeding device. The scraper in the front scraper breeding device runs with the chain to push the material falling on the upper drop plate to the discharge side and drop it to the lower drop plate. The scraper continues to push the material on the lower drop plate to the discharge side and then falls into the next group of breeding units. The material is pushed to the bottom drop plate in turn, and the larvae and feed are stored in the two scraper breeding devices for breeding; among them, the amount of larvae added is 6-8g / m 2 The amount of feed per square meter is between 8 and 12 kg / d;

[0020] ⑵, breeding;

[0021] When adding feed and circulating the material, the motors on the feed lifting device, the circulation lifting device and the two scraper breeding devices are started at the same time, and the screw pump adds the feed into the feed lifting device through the feed feeding port according to the amount, and the scrapers in the two scraper breeding devices push the material from top to bottom, and the feed lifting device lifts the material in the front scraper breeding device and adds it to the rear scraper breeding device, and at the same time, the circulation lifting device lifts the material in the rear scraper breeding device and adds it to the front scraper breeding device, and the cycle is repeated until the feeding and turning are completed; when the material temperature of any breeding unit in the scraper breeding device exceeds the set temperature, the micro fan is turned on to dissipate heat and circulate the material;

[0022] ⑶, discharging;

[0023] After 7 days of breeding, open the electric gate on any one of the scraper breeding devices, or open the electric gates on both scraper breeding devices at the same time; start the discharge lifting device, the feed lifting device, the circulation lifting device and the motors on the two scraper breeding devices, the feed lifting device and the circulation lifting device send the material to the corresponding scraper breeding device, the scrapers in the two scraper breeding devices push the material from top to bottom, and the material falls from the discharge port of the lower drop plate into the feed port of the discharge lifting device, and the discharge lifting device transports the material to the screening system for separation.

[0024] The present invention adopts two scraper breeding devices arranged side by side and is matched with a material in-and-out and circulating conveying device. It does not require a conveying assembly line, and can integrate the feeding, breeding, turning and discharging cycles into one. It does not require other auxiliary equipment and sites, and can further reduce the floor space and reduce the additional system investment cost. The scraper breeding device of the present invention adopts multiple groups of breeding units and multiple groups of scraper units. The breeding units are arranged along the height, and each group stores materials on the upper and lower drop bottom plates to achieve three-dimensional breeding, further reducing the breeding area. The present invention is provided with ventilation windows on each group of breeding units, so that each breeding unit is an open structure. Under the premise of preventing the insect body from escaping easily, the insect seedlings and feed stored in the breeding unit can communicate with the outside air. In addition, the material can be internally circulated and turned, and the material can be ventilated, dissipated and oxygenated in time, which has a good ventilation and oxygenation effect, enhances the feeding ability of insects, and improves the breeding conversion efficiency. The present invention pushes the material through the scraping unit, which can realize the real-time circulation and turning of the internal breeding materials. It can use temperature control feedback and micro-fan adjustment to further enhance the ventilation and heat dissipation function of the breeding materials, which is beneficial to the heat dissipation and oxygen supply of the breeding feed, achieve the best breeding state, and improve the insect output efficiency. The present invention adopts a feeding lifting device, a circulation lifting device and a discharging lifting device to realize material feeding, discharging and circulation operations, which is convenient for multiple automatic feeding. The feeding amount can be adjusted according to the feeding speed and growth stage requirements of the insects per unit breeding area, and the optimal ratio of insects and materials can be allocated to improve the breeding conversion efficiency. The present invention sends the material of the scraper breeding device to the rear-end screening system through the discharging lifting device, which solves the problem of low material scraping efficiency and rear-end transportation and screening difficulties in engineering, and can meet the large-scale and stable production operation. The present invention can realize fully automated control of black soldier fly breeding, utilizes the scraper breeding device and each lifting device integrated system, realizes feeding, breeding, turning and discharging cycle control at the same time, is easy to operate, can be equipped with a digital system, realizes engineering breeding, has obvious economic benefits, can realize the normalized, standardized and intelligent production of black soldier fly breeding, and the project has strong scalability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0026] Figure 1 It is a three-dimensional structural diagram of the invented circulating scraper type automatic black soldier fly breeding system.

[0027] Figure 2 yes Figure 1 Schematic diagram of the A-direction structure.

[0028] Figure 3 It is a structural schematic diagram of the circulating scraper type automatic black soldier fly breeding system of the present invention.

[0029] Figure 4 Yes Yes Figure 3 The structure of the country is shown from above.

[0030] Figure 5 It is a structural schematic diagram of the scraper breeding device of the present invention.

[0031] Figure 6 It is a structural schematic diagram of the breeding unit of the present invention.

[0032] Figure 7 yes Figure 6 Schematic diagram of the structure of the BB cross-section.

[0033] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure at location III.

[0034] Fig. 9 yes Figure 2 Schematic diagram of the enlarged structure at location I.

[0035] Fig.10 yes Figure 2 Schematic diagram of the enlarged structure at point II.

[0036] Fig.11 It is a structural schematic diagram of the scraper of the present invention.

[0037] Fig.12 It is a structural schematic diagram of the connection between the breeding system of the present invention, the feeding equipment and the screening system.

[0038] Among them: 1-scraper farming device, 1a-front scraper farming device, 1b-rear scraper farming device, 1-1-support frame, 1-11-column, 1-12-longitudinal beam, 1-13-cross beam, 1-14-top cover, 1-141-feeding port, 1-15-head seat, 1-16-tail seat, 1-17-reinforcement beam, 1-18-support seat, 1-2-scraper unit, 1-21 —Mobile bearing seat, 1-22—Passive shaft, 1-23—Passive sprocket, 1-24—Chain, 1-25—Scraper, 1-26—Angle scraper seat, 1-27—Drive sprocket, 1-28—Fixed bearing seat, 1-29—Drive shaft, 1-30—Motor, 1-3—Cultivation unit, 1-31—Upper drop plate, 1-32—Lower drop plate, 1-321—Drop port, 1-322 —discharge port, 1-33—outer plate, 1-331—chain cover plate, 1-332—chain guide groove, 1-333—middle cover plate, 1-34—blocking plate, 1-35—limiting wheel, 1-36—ventilation window, 1-37—electric gate, 1-38—connecting support, 1-39—micro fan, 1-4—chain tensioning unit, 1-41—movable support, 1-42—elastic member, 1-4 3—fixed support, 1-44—adjusting part, 2—discharge lifting device, 2-1—feeding port, 3—feeding lifting device, 3-1—feed feeding port, 3-2—worm seedling feeding port, 3-3—circulation dropping port, 3-4—circulation discharge port, 4—circulation lifting device, 4-1—upper outlet, 4-2—lower inlet, 5—screw pump, 6—larvae feeder, 7—drum screening machine, 8—vibration screening machine. Specific embodiments

[0039] See Figures 1 to 4 As shown, a circulating scraper type automatic black soldier fly breeding system of the present invention comprises two scraper breeding devices 1 arranged side by side and a material inlet and outlet and circulating conveying device.

[0040] See Figures 1 to 4 As shown, the scraper farming device 1 of the present invention is used for storing, conveying and turning materials, and includes a support frame 1-1, a farming mechanism and an automatic scraping mechanism. The support frame 1-1 of the present invention is used to install the farming mechanism and the automatic scraping mechanism, and the two ends of the support frame 1-1 are respectively provided with a head seat 1-15 and a tail seat 1-16.

[0041] See Figure 4 As shown, the support frame of the present invention includes a frame structure composed of multiple columns 1-11, multiple cross beams 1-13 and multiple longitudinal beams 1-12. The support frame is provided with a reinforcing beam 1-17 between each breeding unit 1-3. The reinforcing beam 1-17 can support each drop bottom plate. The reinforcing beam 1-17 can adopt multiple reinforcing longitudinal beams and / or multiple reinforcing cross beams, so that the support frame has good mechanical strength. Fig. 9As shown, the support frame 1-1 of the present invention is provided with a plurality of support seats 1-18 for mounting each group of breeding units 1-3, the head seat 1-15 and the tail seat 1-16 are mounted at both ends of the support frame, and the bottom of each column 1-11 is mounted with a support foot. The connecting support on the breeding unit 1-3 is mounted on the corresponding support seat 1-18 by fasteners, which is convenient for installation operation and can realize modular production and installation.

[0042] See Figures 1 to 5 As shown, the breeding mechanism of the present invention is used to store materials, including at least two groups of breeding units 1-3, each group of breeding units 1-3 is arranged along the height and installed on the support frame 1-1, and there can be 2 to 8 groups of breeding units 1-3, and more can be provided. Figures 1 to 3 as well as Figures 5 to 7 As shown, the present invention adopts three groups of breeding units 1-3, which can be adjusted according to breeding needs. Ventilation windows 1-36 are provided on the top of each group of breeding units 1-3 of the present invention, and the spacing h of each ventilation window 1-36 is between 0.25-0.3m. The top cover 1-14 and the uppermost breeding unit 1-3 and the breeding units 1-3 are normally ventilated and ventilated through the ventilation windows 1-36. Since the upper part of the breeding unit 1-3 is an open structure and is not closed, the insect seedlings and feed stored in the breeding unit 1-3 can communicate with the outside air. In addition, the insect seedlings and feed can be pushed and turned during the breeding process, and the materials in each breeding unit 1-3 can be ventilated, dissipated and oxygenated in time, which has a better ventilation and oxygenation effect and enhances the feeding ability of insects.

[0043] See Figures 5 to 7 As shown, each group of breeding units 1-3 of the present invention includes two outer plates 1-33 and an upper and lower material drop bottom plate 1-31 and a lower material drop bottom plate 1-32 arranged up and down. The outer plates 1-33 are installed on the front and rear sides of the upper and lower material drop bottom plates 1-31 and 1-32. The present invention uses the material inlet and outlet side as the front side, and its direction is not limited. The upper and lower material drop bottom plates 1-31 and 1-32 receive materials, and the outer plates 1-33 can also prevent the insects from escaping, so as to realize the three-dimensional breeding of black soldier flies. At the same time, under the action of the scraping unit 1-2, the materials are pushed from top to bottom in the breeding unit 1-3 to realize the turning of the materials. The present invention adopts multiple sections of the outer plates 1-33, the upper and lower material drop bottom plates 1-31 and 1-32, and splices them with the support frame 1-1, so as to facilitate modular production and installation.

[0044] See Figures 5 to 7As shown, the feed side of the lower drop bottom plate 1-32 of the present invention exceeds the discharge side of the upper drop bottom plate 1-31 and is used to receive the discharged falling materials. The materials at the upper drop bottom plate 1-31 are pushed from the discharge side to the lower drop bottom plate 1-32 by the scraper unit 1-2, and then the materials on the lower drop bottom plate 1-32 are pushed to the next breeding unit 1-3, so that the materials are pushed from the upper breeding unit 1-3 to the lower breeding unit 1-3 in sequence. The discharge side of the lower drop bottom plate 1-32 on the upper part of the adjacent breeding unit 1-3 exceeds the feed side of the upper drop bottom plate 1-31 and is used to receive the discharged falling materials, and the materials are pushed from top to bottom in sequence. A feed inlet 1-141 is provided on one side of the top cover 1-14 of the supporting frame 1-1 of the present invention, see Figures 1 to 4 As shown, the feed ports 1-141 of the two scraper farming devices 1 of the present invention are staggered, and the materials are lifted to the top of the corresponding scraper farming device 1, and the materials are added to the farming unit 1-3 through the feed port 1-141, and the bottom drop material bottom plate 1-32 is provided with a drop material port 1-321 and a discharge material port 1-322, and the electric gate 1-37 is installed on the drop material bottom plate 1-32 or the support frame 1-1, and the electric gate 1-37 controls the closing and opening of the discharge material port 1-322, and the materials at the bottom are added to the discharge lifting device through the discharge material port 1-322. When the farming is finished, the electric gate 1-37 is opened, and the materials enter the discharge lifting device 2 from the discharge material port 1-322, so that the materials are added and discharged in the scraper farming device.

[0045] See Figures 5 to 7 As shown, the ends of the upper drop material bottom plate 1-31 and the lower drop material bottom plate 1-32 along the feeding direction of the present invention are staggered, the length of the feeding side of the upper drop material bottom plate 1-31 on the same side exceeds the length of the discharging side of the lower drop material bottom plate 1-32, and the length of the feeding side of the lower drop material bottom plate 1-32 on the same side exceeds the length of the discharging side of the upper drop material bottom plate 1-31, so that the upper material can be pushed from the uppermost upper drop material bottom plate 1-31 to the lowermost lower drop material bottom plate 1-32 in sequence. In the present invention, the spacing H between the upper material drop bottom plate 1-31 and the lower material drop bottom plate 1-32 is between 0.5 and 0.6 m. For example, the spacing H between the upper material drop bottom plate 1-31 and the lower material drop bottom plate 1-32 is 0.55 m. On the one hand, there is enough space between the upper material drop bottom plate 1-31 and the lower material drop bottom plate 1-31, which has a better ventilation and oxygen supplementation effect in breeding. On the other hand, the scraping unit 1-2 can push the materials on the upper material drop bottom plate 1-31 and the upper material drop bottom plate 1-31 at the same time, thereby improving the material distribution, discharge and circulation efficiency. The breeding units 1-3 of the present invention are provided with baffle plates 1-34 on the paths of the discharge side of the upper drop bottom plate 1-31 and the feed side of the lower drop bottom plate 1-32, and the adjacent breeding units 1-3 are provided with baffle plates 1-34 on the paths of the discharge side of the lower drop bottom plate 1-32 and the feed side of the upper drop bottom plate 1-31. The baffle plates 1-34 may be plate-shaped or tubular and may have a downward inward inclination angle to reduce the overflow of materials.

[0046] See Figure 1 , 2 As shown, each group of breeding units 1-3 of the present invention is equipped with at least one temperature sensor for measuring the temperature of the material on the upper material drop bottom plate 1-31 and the lower material drop bottom plate 1-32. The temperature sensor can be set in the middle of the upper material drop bottom plate 1-31 and the lower material drop bottom plate 1-32, or a plurality of temperature sensors can be set at intervals. An environmental temperature control device is installed on the head seat 1-15 or the tail seat 1-16, and a plurality of micro fans 1-39 are installed at intervals along the horizontal direction in the middle of the outer plate 1-33. The environmental temperature control device is used to receive the signal of the temperature sensor and control the micro fan 1-39. Once the temperature sensor detects that the material temperature exceeds the set breeding temperature, the micro fan 1-39 is turned on for forced ventilation and heat dissipation.

[0047] See Figure 7 As shown, the outer plate 1-33 of the present invention includes two upper and lower chain cover plates 1-331 and an intermediate cover plate 1-333. An outwardly protruding chain guide groove 1-332 is provided in the middle of the chain cover plate 1-331. The chain 1-24 is arranged in the chain guide groove 1-332. The upper and lower ends of the chain cover plate 1-331 are provided with inner flanges to improve the strength of the chain cover plate 1-331. The chain cover plate 1-331 is fixedly connected to the corresponding upper drop material bottom plate 1-31 and the lower drop material bottom plate 1-32. The intermediate cover plate 1-333 is connected to the two chain cover plates 1-331. The micro fan 1-39 is installed on the intermediate cover plate 1-333, and the chain cover plate 1-331 is fixed with connecting supports 1-38 at intervals. The connecting supports 1-38 are installed on the supporting base 1-18 of the supporting frame 1-1, and each breeding unit 1-3 is installed on the supporting frame 1-1.

[0048] See Figures 1 to 3 , Figures 5 to 7 As shown, the automatic scraping mechanism of the present invention is used to push the materials in the upper drop material bottom plate 1-31 and the lower drop material bottom plate 1-32, and includes at least two groups of scraping units 1-2, and the scraping units 1-2 correspond to their respective breeding units 1-3. The present invention adopts three groups of breeding units 1-3, and three groups of scraping units 1-2 are correspondingly provided, and each group of scraping units 1-2 corresponds to one group of breeding units 1-3. Figures 5 to 7As shown, the scraper unit 1-2 of the present invention includes a motor 1-30, a chain transmission mechanism and a plurality of scrapers 1-25; the motor 1-30 installed on the head seat 1-15 is connected to the driving shaft 1-29, and the motor 1-30 is connected to the driving shaft 1-29 through a reducer, and the power of the motor 1-30 is provided to the chain transmission mechanism after being reduced in speed, and the driving shaft 1-29 is installed on the fixed bearing seat 1-28 through a bearing, and the fixed bearing seat 1-28 is installed on the head seat 1-15, and the driven shaft 1-22 is installed on the movable bearing seat 1-21 through a bearing, and the movable bearing seat 1-21 is installed on the tail seat 1-16 of the supporting frame 1-1, and the chain transmission mechanism is divided into two groups, and two driving sprockets 1-27 are installed on the driving shaft On the front and rear sides of 1-29, two passive sprockets 1-23 are installed on the front and rear sides of the passive shaft 1-22, and the chain 1-24 is installed on the corresponding active sprocket 1-27 and passive sprocket 1-23. The scraper 1-25 is installed on the two chains 1-24 at intervals. When the chain 1-24 is running, the scraper 1-25 on the upper part of the chain 1-24 is located on the upper part of the upper drop material bottom plate 1-31 for pushing the material on the upper drop material bottom plate 1-31, and the scraper 1-25 on the lower part of the chain 1-24 is located on the upper part of the lower drop material bottom plate 1-32 for pushing the material on the lower drop material bottom plate 1-32, so that a group of scraping units can simultaneously push, circulate and turn over the materials on the two drop material bottom plates on a group of breeding units 1-3.

[0049] See Figures 5 to 8 As shown, the scraper 1-25 of the present invention is installed on the chain 1-24 at intervals of 550 to 750 mm, and can be spaced 650 mm apart. A spacing of 2.0 ± 0.5 mm is provided between the bottom surface of the scraper 1-25 and the upper drop bottom plate 1-31 and between the bottom surface of the scraper 1-25 and the lower drop bottom plate 1-32, so that the scraper 1-25 can stably push the material in the feeding direction. Fig.11 As shown, the scraper 1-25 of the present invention includes a flat plate portion in the middle and V-shaped plate portions or arc-shaped plate portions on the upper and lower sides, which is convenient for connection with the angular scraper seat 1-26 and makes the scraper 1-25 have better load-bearing capacity. The angular scraper seat 1-26 is installed on both ends of the flat plate portion of the scraper 1-25 by fasteners, and the other side of the angular scraper seat 1-26 is installed on the chain 1-24 by fasteners. The height of the scraper 1-25 of the present invention is between 0.2 and 0.3m. If the height of the scraper 1-25 is 0.25m or 0.28m, the thickness of the scraper 1-25 can be between 0.05 and 10mm, such as the thickness of the scraper 1-25 is 5mm, and the length of the scraper 1-25 is between 1.5 and 2.5m, which can be set according to the size of the upper and lower drop bottom plates 1-31 and the upper and lower drop bottom plates 1-31.

[0050] See Figure 1 , Figure 3 as well as Figure 5As shown, the head seat 1-15 of the present invention is also equipped with two freely rotatable limiting wheels 1-35 on the path through which the chain 1-24 passes, and a gap is provided between the two limiting wheels 1-35 for the chain 1-24 to pass through. An outer baffle plate is also installed on the head seat 1-15. The two limiting wheels 1-35 are rotatably mounted on the head seat 1-15 and the outer baffle plate and can rotate freely, so that when the chain 1-24 passes through the gap between the two limiting wheels 1-35, the chain 1-24 is kept from being deviated. In addition, under the action of the chain guide groove 1-332 on the outer plate 1-33, the two chains 1-24 can stably and reliably drive the scraper 1-25 to run smoothly.

[0051] See Figures 1 to 3 as well as Figure 5 and Fig.10 As shown, the tailstock 1-16 of the present invention is also equipped with a chain tensioning unit 1-4 corresponding to each scraper unit 1-2, and the chain tensioning unit 1-4 includes a fixed support 1-43, a movable support 1-41, an elastic member 1-42 and an adjusting member 1-44. The fixed support 1-43 is installed on the tailstock 1-16, and an adjusting groove is provided on the tailstock 1-16. The passive shaft 1-22 is arranged in the adjusting groove. The movable support 1-41 is connected to the movable bearing seat 1-21, and the two elastic members 1-42 are connected to the movable bearing seat 1-21. 42 is installed on the corresponding connecting rod of the movable support 1-41, the connecting rod passes through the fixed support 1-43 and is connected to the respective adjusting parts 1-44, the two ends of the elastic part 1-42 are pressed on the movable support 1-41 and the fixed support 1-43, the elastic part 1-42 can adopt a spring, so the tension adjustment can be achieved by a double spring, and the adjusting part 1-44 can adopt a nut and be screwed on the connecting rod, through the elastic force of the spring, the chain 1-24 is tensioned, so that the scraper 1-25 can run smoothly and reliably.

[0052] See Figures 1 to 4 As shown, the material inlet and outlet and circulation conveying device of the present invention is used to convey materials, and includes a feed lifting device 3, a circulation lifting device 4 and a discharge lifting device 2. By controlling the operation of the feed lifting device 3, the circulation lifting device 4 and the discharge lifting device 2, the feeding, discharging and circulation turning of materials in the scraper breeding device 1 are realized.

[0053] See Figures 1 to 4 as well as Fig.12As shown, the feed lifting device 3 of the present invention is used for feeding and circulating the materials in the two-scraper breeding device 1. The feed lifting device 3 is provided with a feed feeding port 3-1 and a larvae feeding port 3-2 on the front side. The feed feeding port 3-1 is connected to a kitchen feed screw pump 5, and the feeding amount of the kitchen feed is controlled by adjusting the feeding frequency of the screw pump. The larvae feeding port 3-2 is connected to a larvae feeder 6, and the feeding amount of the larvae is controlled by adjusting the feeding frequency of the larvae feeder 6. The feed lifting device 3 passes through the front scraper breeding device 1. The bottom of the breeding device 1a extends upward to the top of the rear scraper breeding device 1b, the circulating drop port 3-3 of the feeding and lifting device 3 is connected with the drop port 1-321 on the drop bottom plate 1-32 at the bottom of the front scraper breeding device 1a, and the circulating discharge port 3-4 is connected with the feed port 1-141 of the rear scraper breeding device 1b, so that the material is added into the rear scraper breeding device 1b, and the material discharged from the front scraper breeding device 1a can also be circulated and added into the rear scraper breeding device 1b.

[0054] See Figures 1 to 4 as well as Fig.12 As shown, the circulation lifting device 4 of the present invention is used to transport the materials of the rear scraper breeding device 1b to the front scraper breeding device 1a. The rear end of the circulation lifting device 4 is arranged at the bottom of the rear scraper breeding device 1b, and the front end is arranged at the top of the front scraper breeding device 1a. The lower inlet 4-2 on the circulation lifting device 4 is connected with the drop opening 1-321 on the drop bottom plate 1-32 at the bottom of the rear scraper breeding device 1b, and the upper outlet 4-1 is connected with the feed opening 1-41 on the front scraper breeding device 1a, so that the materials of the rear scraper breeding device 1b are transported to the front scraper breeding device 1a for circulation.

[0055] See Figures 1 to 4 as well as Fig.12As shown, the discharge lifting device 2 of the present invention is used to transport the materials discharged from the two scraper breeding devices 1. The rear side of the discharge lifting device 2 is set at the bottom of the two scraper breeding devices 1. The feed port 2-1 on the discharge lifting device 2 is connected to the discharge port 1-322 of at least one scraper breeding device 1, and the discharge port is connected to the screening system. The feed port 2-1 on the discharge lifting device 2 of the present invention can be connected to the discharge port 1-322 of the rear scraper breeding device 1b. When the electric gate 1-37 is opened, all the materials can be discharged from the discharge port 1-322 of the rear scraper breeding device 1b; the feed port 2-1 on the discharge lifting device 2 of the present invention can be connected to the discharge port 1-322 of the front scraper breeding device 1a. When the electric gate 1-37 is opened, all the materials can be discharged from the front scraper breeding device 1 a is discharged from the discharge port 1-322; the discharge lifting device 2 of the present invention is provided with two feed ports 2-1, which are respectively connected to the discharge ports 1-322 of the two scraper breeding devices 1. When the electric gate 1-37 is opened, all materials can be discharged from the discharge ports 1-322 of the two scraper breeding devices 1, and the discharged materials are subjected to the screening system, and the insect feces are separated by the drum screening machine 7, and then the coarse particles and debris are separated by the vibration screening machine 8, so as to obtain the commercial fresh black soldier fly insects as products.

[0056] See Figures 1 to 4 as well as Fig.12 As shown, the feed lifting device 3, the circulation lifting device 4 and the discharge lifting device 2 of the present invention are Z-shaped elevators, and existing commercially available products can be used. The feed lifting device 3 and the circulation lifting device 4 are adjacently arranged on the supporting frame 1-11 and are located on one side of the tail seat 1-16. The vertical pipe parts of the feed lifting device 3 and the circulation lifting device 4 are arranged between the two scraper breeding devices 1, and the discharge lifting device 2 can be arranged in the middle of the supporting frame 1-11. The overall layout is compact and occupies a small area.

[0057] See Figures 1 to 7 as well as Fig.12 As shown, the breeding method of the circulating scraper type automatic black soldier fly breeding device of the present invention is carried out according to the following steps:

[0058] ⑴, loading;

[0059] Start the feed lifting device 3, the circulation lifting device 4 and the motor 1-30 on the two scraper breeding devices 1, the screw pump 5 adds the feed into the feed lifting device 3 from the feed feeding port 3-1 according to the amount, the larvae feeder 6 adds the mixture of larvae and auxiliary materials into the feed lifting device 3 from the larvae feeding port 3-2 according to the amount, the feed lifting device 3 lifts the material and adds it from the feeding port 1-41 of the rear scraper breeding device 1b, the scraper 1-25 in the rear scraper breeding device 1b runs with the chain 1-24, pushes the material falling on the upper drop bottom plate 1-31 to the discharge side and falls on the lower drop bottom plate 1-32, the scraper 1-25 continues to push the material on the lower drop bottom plate 1-32 to the discharge side and then falls into the next group of breeding units 1-3 , push the material from top to bottom in sequence, the material falls into the lower inlet 4-2 of the circulation lifting device 4 from the drop port 1-321 on the bottom drop plate 1-32, the circulation lifting device 4 lifts the material to the feed port 1-41 of the front scraper breeding device 1a, the scraper 1-25 in the front scraper breeding device 1a runs with the chain 1-24 to push the material falling on the upper drop plate 1-31 to the discharge side and drop it onto the lower drop plate 1-32, the scraper 1-25 continues to push the material on the lower drop plate 1-32 to the discharge side and then falls into the next group of breeding units 1-3, push the material to the bottom drop plate 1-32 in sequence, and store the larvae and feed in the two scraper breeding devices 1 for breeding.

[0060] The dosage of the insect seedling of the present invention is 6-8 g / m 2 The amount of feed per square meter is between 8 and 12 kg / d. For example, in the scraper breeding device 1, the amount of insects per square meter of breeding area is 7 g of insect eggs for hatching and brooding, and the amount of feed per square meter is 10 kg / d of kitchen solid residue feed.

[0061] The feeding working route of the present invention is: feeding lifting device 3 → rear scraper breeding device 1b → circulation lifting device 4 → front scraper breeding device 1a, adding larvae and feed into the two scraper breeding devices 1, only larvae need to be added for the first time in each breeding cycle, and feed can be added every day according to the larvae feeding speed.

[0062] ⑵, breeding;

[0063] During the breeding process, feed needs to be added and the materials need to be circulated and turned over. At the same time, the feed lifting device 3, the circulation lifting device 4 and the motor 1-30 on the two scraper breeding devices 1 are started. During the breeding process, feed can be added 1 to 2 times a day according to the larval food speed and the materials need to be circulated and turned over to ensure that there is sufficient feed and the breeding conditions are met. The screw pump 5 adds the feed into the feed lifting device 3 through the feed feeding port 3-1, and the scrapers 1-25 in the two scraper breeding devices 1 push the materials from top to bottom. The feed lifting device 3 lifts the materials in the front scraper breeding device 1a and adds them to the rear scraper breeding device 1b. At the same time, the circulation lifting device 4 lifts the materials in the rear scraper breeding device 1b and adds them to the front scraper breeding device 1a. This cycle is repeated until the feeding and turning over are completed. When the material temperature of any breeding unit 1-3 in the scraper breeding device 1 exceeds the set temperature, the micro fan 1-39 is turned on to dissipate heat and circulate the materials. The present invention adds feed 1-2 times a day, can periodically perform cyclic turning of the material, and can also perform random cyclic turning of the material. When the material temperature is higher than 35°C, the micro fan 1-39 is automatically turned on for emergency exhaust, and the cyclic turning of the material is turned on for 5 minutes at the same time. Forced ventilation is performed by the micro fan 1-39. Forced ventilation is performed during cyclic turning of the material to increase the amount of oxygen, and real-time internal material cyclic turning of the material can be achieved. The cyclic turning time can be set by oneself to maintain the requirements required for breeding, such as improving breeding efficiency. The ambient temperature of the breeding units 1-3 of the present invention is controlled between 28±2°C, the relative humidity of the air does not exceed 85%, the ammonia concentration does not exceed 150 ppm, and the oxygen concentration is not less than 15%.

[0064] The working route in the breeding of the present invention is: the feed lifting device 3 → the rear scraper breeding device 1b → the circulation lifting device 4 → the front scraper breeding device 1a → the feed lifting device 3, and the cycle is repeated.

[0065] ⑶, discharging;

[0066] After the breeding is completed, open the electric gate 1-37 on any one of the scraper breeding devices 1, or open the electric gates 1-37 on both scraper breeding devices 1 at the same time; start the discharge lifting device 2, the feed lifting device 3, the circulation lifting device 4 and the motors 1-30 on the two scraper breeding devices 1, and the materials of the feed lifting device 3 and the circulation lifting device 4 are sent to the corresponding scraper breeding device 1. The scrapers 1-25 in the two scraper breeding devices 1 push the materials from top to bottom to the discharge port 1-322 in turn, and fall into the feed port 2-1 of the discharge lifting device 2. The discharge lifting device 2 transports the materials to the screening system for separation. The breeding cycle can be 6-7 days.

[0067] When the breeding of the present invention is finished and the material is discharged, the electric gate 1-37 in the rear scraper breeding device 1b is opened, and its working route is: the circulation lifting device 4 → the front scraper breeding device 1a → the feeding lifting device 3 → the rear scraper breeding device 1b → the discharging elevator → the screening system;

[0068] When the electric gate 1-37 in the front scraper farming device a1 is opened, its working route is: feeding hoisting device 3→rear scraper farming device 1b→circulation hoisting device 4→front scraper farming device 1a→discharging hoist→screening system;

[0069] When the electric gates 1-37 of the rear scraper farming device 1b and the front scraper farming device a1 are opened at the same time, the working route is: the circulating lifting device 4 → the front scraper farming device 1a → the discharging elevator → the screening system, and at the same time the feeding lifting device 3 → the rear scraper farming device 1b → the discharging elevator → the screening system;

[0070] The discharged material is separated from the insect feces by a drum screening machine 7, and then separated from the coarse particles by a vibration screening machine 8, and the commercial fresh black soldier flies are obtained as the product.

[0071] By adopting the circulating scraper type automatic black soldier fly breeding system of the present invention, the insect-egg ratio is not less than 1600, the feed-worm ratio is ≤6.5, and the impurity rate of commercial insects is ≤3%; based on the production scale of 20 t / d kitchen solid residue feed, the fixed cost of the production line including employee wages, equipment maintenance, equipment depreciation, etc. is about 800 yuan / t fresh insects, and the variable cost including insect eggs, auxiliary materials, water and electricity, etc. is controlled at 1300 yuan / t fresh insects.

Claims

1. A circulating scraper type automatic black soldier fly breeding system, characterized by: It includes two scraper breeding devices arranged side by side and a material inlet and outlet and circulation conveying device; The scraper farming device is used to store, transport and turn materials, including a supporting frame, a farming mechanism and an automatic scraping mechanism; The support frame is used to install the breeding mechanism and the automatic scraping mechanism, and the two ends of the support frame are respectively provided with a head seat and a tail seat; The breeding mechanism is used to store materials, including at least two groups of breeding units, which are arranged in height and installed on the supporting frame, and each group of breeding units is provided with a ventilation window on the top; each group of breeding units includes two outer plates and an upper and lower material drop bottom plate arranged above and below, and the outer plates are installed on the front and rear sides of the upper and lower material drop bottom plates; the feeding side of the lower material drop bottom plate exceeds the discharging side of the upper material drop bottom plate and is used to receive the discharged and falling materials, the discharging side of the upper lower material drop bottom plate of the adjacent breeding units exceeds the feeding side of the lower upper material drop bottom plate and is used to receive the discharged and falling materials, a feeding port is provided on one side of the top cover of the supporting frame, and a material drop port and a discharging port are provided on the lower material drop bottom plate at the bottom, and an electric gate is installed on the lower material drop bottom plate or the supporting frame, and the electric gate controls the closing and opening of the discharging port; The automatic scraping mechanism is used to push the materials in the upper and lower material-dropping bottom plates, and includes at least two groups of scraping units, the scraping units correspond to the respective breeding units, and the scraping units include a motor, a chain transmission mechanism and a plurality of scrapers; the motor installed on the head seat is connected to the driving shaft, the driving shaft is installed on the fixed bearing seat through a bearing, the fixed bearing seat is installed on the head seat, the driven shaft is installed on the movable bearing seat through a bearing, and the movable bearing seat is installed on the tail seat; The chain transmission mechanism consists of two groups, two active sprockets are installed on the front and rear sides of the active shaft, two passive sprockets are installed on the front and rear sides of the passive shaft, chains are installed on the corresponding active sprockets and passive sprockets, and scrapers are installed on the two chains at intervals. The scraper on the upper part of the chain is located on the upper part of the upper drop material bottom plate for pushing the material on the upper drop material bottom plate, and the scraper on the lower part of the chain is located on the upper part of the lower drop material bottom plate for pushing the material on the lower drop material bottom plate; The material in-and-out and circulation conveying device is used to convey the material, including a feed lifting device, a circulation lifting device and a discharge lifting device; The feed lifting device is used for feeding and circulating the materials in the two scraper breeding devices. The feed lifting device is provided with a feed feeding port and a larvae feeding port on the front side. The feed lifting device passes through the bottom of the front scraper breeding device and extends upward to the top of the rear scraper breeding device. The circulating material dropping port of the feed lifting device is connected with the material dropping port on the lower material dropping bottom plate of the front scraper breeding device, and the circulating material discharge port is connected with the material feeding port of the rear scraper breeding device. The circulation lifting device is used to transport the materials of the rear scraper farming device to the front scraper farming device. The rear end of the circulation lifting device is arranged at the bottom of the rear scraper farming device, and the front end is arranged at the top of the front scraper farming device. The lower inlet on the circulation lifting device is connected to the material drop opening on the lower drop bottom plate of the rear scraper farming device, and the upper outlet is connected to the material inlet on the front scraper farming device. The discharge lifting device is used to transport the materials discharged by the two scraper breeding devices. The rear side of the discharge lifting device is arranged at the bottom of the two scraper breeding devices. The feed port on the discharge lifting device is connected to the discharge port of at least one scraper breeding device, and the discharge port is connected to the screening system.

2. The circulating scraper type automatic black soldier fly breeding system according to claim 1 is characterized by: Each group of breeding units is equipped with at least one temperature sensor for measuring the material temperature on the upper and lower material dropping bottom plates, an environmental temperature control device is installed on the head seat or the tail seat, and a plurality of micro fans are installed at intervals along the lateral direction in the middle of the outer plate. The environmental temperature control device is used to receive signals from the temperature sensor and control the micro fans.

3. A circulating scraper type automatic black soldier fly breeding system according to claim 1 or 2, characterized in that: The outer plate includes two upper and lower chain cover plates and an intermediate cover plate. An outwardly protruding chain guide groove is provided in the middle of the chain cover plate, and inward flanges are provided at the upper and lower ends. The chain is arranged in the chain guide groove. The chain cover plate is fixedly connected to the corresponding upper blanking bottom plate and the lower blanking bottom plate. Connecting supports are fixed at intervals on the chain cover plate, and the connecting supports are installed on the supporting seat of the supporting frame. The intermediate cover plate is connected to the two chain cover plates, and the micro fan is installed on the intermediate cover plate.

4. The circulating scraper type automatic black soldier fly breeding system according to claim 1 is characterized by: The ends of the upper and lower blanking bottom plates along the feeding direction are staggered, the length of the feeding side of the upper blanking bottom plate on the same side exceeds the length of the discharging side of the lower blanking bottom plate, and the length of the feeding side of the lower blanking bottom plate on the same side exceeds the length of the discharging side of the upper blanking bottom plate. The spacing H between the upper and lower blanking bottom plates is between 0.5 and 0.6 m.

5. The circulating scraper type automatic black soldier fly breeding system according to claim 1 is characterized by: The breeding units are provided with baffle plates on the paths of the discharge side of the upper drop bottom plate and the feed side of the lower drop bottom plate, and the adjacent breeding units are provided with baffle plates on the paths of the discharge side of the lower drop bottom plate and the feed side of the upper drop bottom plate.

6. The circulating scraper type automatic black soldier fly breeding system according to claim 1 is characterized by: The scrapers are installed on the chain at intervals of 550 to 750 mm, and a spacing of 2.0 ± 0.5 mm is set between the bottom surface of the scraper and the upper drop bottom plate and between the bottom surface of the scraper and the lower drop bottom plate.

7. A circulating scraper type automatic black soldier fly breeding system according to claim 1 or 6, characterized in that: The scraper includes a flat plate portion in the middle and V-shaped plate portions or arc-shaped plate portions on the upper and lower sides. The angular scraper seat is installed at both ends of the scraper flat plate portion through fasteners, and the other side of the angular scraper seat is installed on the chain through fasteners. The height of the scraper is between 0.2 and 0.3m.

8. A circulating scraper type automatic black soldier fly breeding system according to claim 1 or 2, characterized in that: The machine head seat is also provided with two freely rotatable limiting wheels on the path through which the chain passes, and a gap for the chain to pass is arranged between the two limiting wheels.

9. The circulating scraper type automatic black soldier fly breeding system according to claim 1, characterized in that: A chain tensioning unit corresponding to each scraper unit is also installed on the tail seat. The chain tensioning unit includes a fixed support, a movable support, an elastic member and an adjusting member. The fixed support is installed on the tail seat. An adjusting groove is provided on the tail seat. The passive shaft is arranged in the adjusting groove. The movable support is connected to the movable bearing seat. Two elastic members are installed on the corresponding connecting rods of the movable support. The connecting rods pass through the fixed support and are connected to the respective adjusting members. Both ends of the elastic member are pressed against the movable support and the fixed support.

10. The circulating scraper type automatic black soldier fly breeding system according to claim 1, characterized in that: The supporting frame includes a frame structure consisting of multiple columns, multiple cross beams and multiple longitudinal beams. The supporting frame is provided with multiple supporting seats for installing each group of breeding units. The head seat and the tail seat are installed at both ends of the supporting frame, and the bottom of each column is installed with a supporting foot.

11. The circulating scraper type automatic black soldier fly breeding system according to claim 1, characterized in that: The feed lifting device, the circulation lifting device and the discharge lifting device are Z-shaped elevators. The feed lifting device and the circulation lifting device are adjacently arranged on the support frame and located on one side of the tail seat. The vertical pipe parts of the feed lifting device and the circulation lifting device are arranged between the two scraper breeding devices.

12. The breeding method of a circulating scraper type automatic black soldier fly breeding system according to claim 1, characterized in that: Follow these steps: ⑴, loading; The motors on the feed lifting device, the circulation lifting device and the two scraper breeding devices are started, the screw pump adds the feed into the feed lifting device from the feed feeding port according to the amount, the larvae feeder adds the mixture of larvae and auxiliary materials into the feed lifting device from the larvae feeding port according to the amount, the feed lifting device lifts the material and adds it from the feeding port of the rear scraper breeding device, the scraper in the rear scraper breeding device runs with the chain, pushes the material falling on the upper drop bottom plate to the discharge side and falls onto the lower drop bottom plate, the scraper continues to push the material on the lower drop bottom plate to the discharge side and falls into the next group of breeding units, and the material is sequentially pushed from Pushing from top to bottom, the material falls from the drop opening on the bottom drop plate into the lower inlet of the circulation lifting device. The circulation lifting device lifts the material to the inlet of the front scraper breeding device. The scraper in the front scraper breeding device runs with the chain to push the material falling on the upper drop plate to the discharge side and drop it to the lower drop plate. The scraper continues to push the material on the lower drop plate to the discharge side and then falls into the next group of breeding units. The material is pushed to the bottom drop plate in turn, and the larvae and feed are stored in the two scraper breeding devices for breeding; among them, the amount of larvae added is 6-8g / m 2 The amount of feed per square meter is between 8 and 12 kg / d; ⑵, breeding; When adding feed and circulating the material, the motors on the feed lifting device, the circulation lifting device and the two scraper breeding devices are started at the same time, and the screw pump adds the feed into the feed lifting device through the feed feeding port according to the amount, and the scrapers in the two scraper breeding devices push the material from top to bottom, and the feed lifting device lifts the material in the front scraper breeding device and adds it to the rear scraper breeding device, and at the same time, the circulation lifting device lifts the material in the rear scraper breeding device and adds it to the front scraper breeding device, and the cycle is repeated until the feeding and turning are completed; when the material temperature of any breeding unit in the scraper breeding device exceeds the set temperature, the micro fan is turned on to dissipate heat and circulate the material; ⑶, discharging; After 7 days of breeding, open the electric gate on any one of the scraper breeding devices, or open the electric gates on both scraper breeding devices at the same time; start the discharge lifting device, the feed lifting device, the circulation lifting device and the motors on the two scraper breeding devices, the feed lifting device and the circulation lifting device send the material to the corresponding scraper breeding device, the scrapers in the two scraper breeding devices push the material from top to bottom, and the material falls from the discharge port of the lower drop plate into the feed port of the discharge lifting device, and the discharge lifting device transports the material to the screening system for separation.

Images