Hermetia illucens inactivating and drying device and control method thereof

Abstract

The invention discloses a hermetia illucens inactivating and drying device and a control method thereof.The hermetia illucens inactivating and drying device comprises a drying mechanism, a conveying belt and a heat supply mechanism, and the drying mechanism comprises a drying oven and a dehumidifying fan; the conveying belt penetrates through the open groove and is partially arranged in the drying cavity. The heat supply mechanism comprises a combustion furnace, a heat exchange pipe, a heat exchange box, an induced draft fan and a circulating fan. The hermetia illucens inactivation and drying device and the control method thereof have the beneficial effects that hermetia illucens are inactivated and dried through one set of equipment, the equipment cost is reduced, meanwhile, the combustion furnace is adopted for combusting fuel for heat supply, heat supply can be conducted through biomass fuel, and the heat supply efficiency is improved. And meanwhile, heat generated by combustion is transferred into the drying oven through the heat exchange pipe, the heat exchange box and the circulating fan to inactivate and dry the hermetia illucens, so that the processing cost can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of black soldier fly inactivation and drying, and in particular to a black soldier fly inactivation and drying device and a control method thereof. Background Art

[0002] Black soldier flies are saprophytic insects belonging to the genus Soldierfly of the family Soldierfly in the order Diptera. Black soldier flies larvae are rich in nutrients such as active protein, insect fat, probiotics, antimicrobial peptides and chitin. They are the best natural health products for various animals and can be used as staple food or feed supplements for animals. Black soldier flies have antithrombin, anti-inflammatory, analgesic and other effects, especially rich in antibacterial substances, and have great value in medical and health development. When processing black soldier flies, they need to be inactivated and dried.

[0003] The existing black soldier fly inactivation and drying process is to use two special equipments to perform inactivation and drying respectively, which increases the equipment cost. Meanwhile, the existing black soldier fly inactivation and drying equipment usually adopts electric heating, which is relatively costly. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, and to propose a black soldier fly inactivation and drying device and a control method thereof, so as to solve the technical problems that in the prior art, the black soldier fly inactivation and drying processes are performed by two special devices respectively, which increases the equipment cost, and the existing black soldier fly inactivation and drying equipment usually adopts electric heating, which is relatively costly.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a black soldier fly inactivation and drying device and a control method thereof, comprising: A drying mechanism, the drying mechanism comprising a drying oven and a dehumidifying fan, the drying oven having a closed drying chamber, the side wall of the drying oven having an opening slot and a hot air inlet, the hot air inlet being located below the opening slot, the top surface of the drying oven having a dehumidifying port, the dehumidifying fan being installed at the dehumidifying port; A conveyor belt, the conveyor belt passes through the open slot and is partially built into the drying chamber; A heating mechanism, the heating mechanism includes a combustion furnace, a heat exchange tube, a heat exchange box, an induced draft fan and a circulating fan, the smoke outlet of the combustion furnace is connected to one end of the heat exchange tube, the heat exchange tube is built in the heat exchange box, an air inlet is provided at the upper end of the heat exchange box, an air outlet connected to the hot air inlet is provided at the lower end of the heat exchange box, the inlet of the induced draft fan is connected to the other end of the heat exchange tube, and the outlet of the circulating fan is connected to the air inlet.

[0006] In some embodiments, an exhaust port is further provided on the oven, and the drying mechanism further includes a fresh air door and an adjustment mechanism, wherein the fresh air door is provided at the exhaust port, and the adjustment mechanism is used to drive the fresh air door to move so as to adjust the opening degree of the exhaust port.

[0007] In some embodiments, a first rotating shaft is fixed to the middle of the fresh air door, the first rotating shaft is rotatably disposed in the oven, and the adjustment mechanism includes a first rotating driving member, the first rotating driving member is connected to the first rotating shaft, and is used to drive the first rotating shaft to rotate.

[0008] In some embodiments, the conveyor belt includes a conveying shell, a driving wheel, a driven wheel, a conveying belt and a conveying drive motor. The driving wheel and the driven wheel are respectively rotatably arranged at the two ends of the conveying shell. The conveying belt is closed and its two ends are respectively wound around the driving wheel and the driven wheel. The conveying drive motor is connected to the driving wheel and is used to drive the driving wheel to rotate.

[0009] In some embodiments, the combustion furnace includes a furnace body and a silo, the furnace body is provided with a grid plate, the grid plate divides the inner cavity of the furnace body into a combustion chamber located at the top and an ash falling chamber located at the bottom, a feed port connected to the combustion chamber is provided on the side wall of the furnace body, an ash outlet connected to the ash falling chamber is also provided on the side wall of the furnace body, and the outlet of the silo is connected to the feed port.

[0010] In some embodiments, the heating mechanism also includes a smoke guide pipe, a first junction box, a second junction box and a smoke exhaust pipe, one end of the smoke guide pipe is connected to the smoke outlet of the combustion furnace, the other end of the smoke guide pipe is connected to the first junction box, one end of the heat exchange tube is connected to the first junction box, the other end of the heat exchange tube is connected to the second junction box, one end of the smoke exhaust pipe is connected to the second junction box, and the other end of the smoke exhaust pipe is connected to the inlet of the induced draft fan.

[0011] In some embodiments, a plurality of heat dissipation fins are disposed on the outer side wall of the heat exchange tube.

[0012] In some embodiments, an air inlet door is provided in the air inlet hole, the heating mechanism also includes an air inlet adjusting member, a second rotating shaft is fixed to the middle part of the air inlet door, the second rotating shaft is rotatably provided in the heat exchange box, and the heating mechanism also includes a second rotating driving member, the second rotating driving member is connected to the second rotating shaft and is used to drive the second rotating shaft to rotate.

[0013] In some embodiments, the black soldier fly inactivation and drying device also includes a material dividing mechanism, which includes a vibrator, a material plate, a first-level material dividing piece and a second-level material dividing piece. The material plate is installed at the output end of the vibrator, one end of the material plate is used to place materials, and the other end of the material plate is connected to the feeding end of the conveyor belt. The first-level material dividing piece includes a plurality of material dividing strips fixed on the material plate, each of the material dividing strips is radially distributed, with its convergent end located at one end of the material plate and its divergent end located in the middle of the material plate. The second-level material dividing piece includes a plurality of material blocking protrusions fixed on the material plate, and each of the material blocking protrusions is distributed in front of the material conveying channel defined by two adjacent material dividing strips.

[0014] The present invention also provides a control method for a black soldier fly inactivation and drying device, which is applicable to the black soldier fly inactivation and drying device and comprises the following steps: S1. Put the fuel into the combustion furnace and ignite it. The smoke generated by the combustion enters the heat exchange tube and is then extracted by the induced draft fan. At the same time, the circulating fan is turned on. The outside air enters the heat exchange box from the air inlet, is heated by the heat exchange tube, and then enters the oven, thereby raising the temperature in the oven to the preset temperature. S2, spreading the black soldier flies to the feed end of the conveyor belt, starting the conveyor belt, and transporting the black soldier flies to the oven by the conveyor belt, inactivating the black soldier flies for 2 to 3 minutes, after which the black soldier flies follow the conveyor belt to leave the oven, and collecting the inactivated black soldier flies; S3, again spreading the inactivated black soldier flies on the feed end of the conveyor belt, starting the conveyor belt, the conveyor belt transports the black soldier flies into the oven, and the black soldier flies are dried for 15-20 minutes. After the drying is completed, the black soldier flies follow the conveyor belt to leave the oven, and the dried black soldier flies are collected.

[0015] Compared with the prior art, the black soldier fly inactivation and drying device and control method provided by the present invention have the following beneficial effects: the black soldier flies are inactivated and dried by a set of equipment, thereby reducing the equipment cost; at the same time, the present invention adopts a combustion furnace to burn fuel for heating, and can use biomass fuel for heating; at the same time, the heat generated by the combustion is transferred to the oven through the heat exchange tube, the heat exchange box and the circulating fan to inactivate and dry the black soldier flies, thereby reducing the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of a black soldier fly inactivation and drying device provided by one embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the black soldier fly inactivation and drying device with the outer shell omitted; Figure 3 yes Figure 1 A top view of a black soldier fly inactivation and drying device; Figure 4 yes Figure 3 Section view of mid-section AA; Figure 5 yes Figure 3 Sectional view of the middle section BB; Figure 6 yes Figure 1 A schematic diagram of the three-dimensional structure of the black soldier fly inactivation and drying device with part of the outer shell omitted; Figure 7 yes Figure 1 A schematic diagram of the structure of the material distribution mechanism; Figure 8 yes Figure 1 Schematic diagram of parameters of each control mode of the black soldier fly inactivation and drying device; Fig. 9 It is the control logic diagram of the drying room temperature and ventilation control system; Fig.10 It is a schematic diagram of the working process of the induced draft fan and the discharge motor; Fig.11 It is a schematic diagram of the working process of the vibrator, variable frequency motor and circulating fan; Description of the accompanying drawings: 1-drying mechanism, 11-oven, 111-opening slot, 112-hot air inlet, 113-dehumidification port, 114-exhaust port, 12-dehumidification fan, 13-fresh air door, 131-first rotating shaft, 2-conveyor belt, 21-conveyor shell, 22-conveyor belt, 23-conveyor drive motor, 3-heating mechanism, 31-combustion furnace, 311-furnace body, 3111-grid plate, 3112-feed port, 3113-ash outlet, 312-material Warehouse, 32-heat exchange tube, 321-heat fin, 33-heat exchange box, 331-air inlet, 332-air outlet, 34-draft fan, 35-circulation fan, 36-smoke guide pipe, 361-first junction box, 37-second junction box, 371-smoke exhaust pipe, 38-air inlet door, 381-second rotating shaft, 4-material dividing mechanism, 41-vibrator, 42-material plate, 43-first-level material dividing piece, 431-material dividing strip, 44-second-level material dividing piece, 441-material blocking protrusion. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] In order to solve the technical problems that in the prior art, the black soldier fly inactivation and drying processes are performed by two special devices respectively, which increases the equipment cost, and the existing black soldier fly inactivation and drying equipment usually adopts electric heating, which is relatively costly, the present invention provides a black soldier fly inactivation and drying device and a control method thereof, which can achieve the inactivation and drying of black soldier flies by one device and reduce the processing cost.

[0019] See also Figure 1-Figure 5 , Figure 1 Schematic diagram of the three-dimensional structure of a black soldier fly inactivation and drying device in one embodiment of the present invention. The black soldier fly inactivation and drying device and the control method thereof include a drying mechanism 1, a conveyor belt 2 and a heating mechanism 3.

[0020] The drying mechanism 1 includes a drying oven 11 and a dehumidifying fan 12. The drying oven 11 has a closed drying chamber. The side wall of the drying oven 11 is provided with an opening groove 111 and a hot air inlet 112. The hot air inlet 112 is located below the opening groove 111. The top surface of the drying oven 11 is provided with a dehumidifying port 113, and the dehumidifying fan 12 is installed at the dehumidifying port 113.

[0021] The conveyor belt 2 passes through the opening slot 111 and is partially built into the drying chamber.

[0022] The heating mechanism 3 includes a combustion furnace 31, a heat exchange tube 32, a heat exchange box 33, an induced draft fan 34 and a circulating fan 35. The smoke outlet of the combustion furnace 31 is connected to one end of the heat exchange tube 32. The heat exchange tube 32 is built in the heat exchange box 33. An air inlet 331 is provided at the upper end of the heat exchange box 33. An air outlet 332 connected to the hot air inlet 112 is provided at the lower end of the heat exchange box 33. The inlet of the induced draft fan 34 is connected to the other end of the heat exchange tube 32. The outlet of the circulating fan 35 is connected to the air inlet 331.

[0023] When in use, fuel (such as biomass fuel) is put into the combustion furnace 31 and ignited, and the smoke generated by the combustion enters the heat exchange tube 32 and is then extracted through the induced draft fan 34. At the same time, the circulating fan 35 is turned on, and the outside air enters the heat exchange box 33 from the air inlet 331, is heated by the heat exchange tube 32, and then enters the oven 11, so that the temperature in the oven 11 is raised to a preset temperature; then, the black soldier flies are spread and evenly spread on the feeding end of the conveyor belt 2, and the conveyor belt 2 is started, and the conveyor belt 2 conveys the black soldier flies. The black soldier flies are transported to the oven 11, and the black soldier flies are inactivated for 2 to 3 minutes. After that, the black soldier flies follow the conveyor belt 2 to leave the oven 11, and the inactivated black soldier flies are collected; the inactivated black soldier flies are spread on the feed end of the conveyor belt 2 again, and the conveyor belt 2 is started. The conveyor belt 2 transports the black soldier flies to the oven 11, and the black soldier flies are dried for 15 to 20 minutes. After the drying is completed, the black soldier flies follow the conveyor belt 2 to leave the oven 11, and the dried black soldier flies are collected.

[0024] The technical solution provided by the present invention uses a set of equipment to inactivate and dry black soldier flies, thereby reducing equipment costs. At the same time, the present invention uses a combustion furnace to burn fuel for heating, and can use biomass fuel for heating. At the same time, the heat generated by the combustion is transferred to the oven 11 through a heat exchange tube, a heat exchange box and a circulating fan to inactivate and dry the black soldier flies, which can reduce processing costs. At the same time, by blowing hot air upward, the black soldier flies on the conveyor belt 2 can be slightly blown up, thereby increasing the contact area between the hot air and the black soldier flies, and improving the drying efficiency.

[0025] In one embodiment, see Figure 1-Figure 5 The oven 11 is also provided with an exhaust port 114, and the drying mechanism 1 further includes a fresh air door 13 and an adjustment mechanism, wherein the fresh air door 13 is arranged at the exhaust port 114, and the adjustment mechanism is used to drive the fresh air door 13 to move so as to adjust the opening degree of the exhaust port 114. In this embodiment, the exhaust port 114 and the fresh air door 13 are arranged on the top surface of the oven 11, and in other embodiments, the exhaust port 114 and the fresh air door 13 may also be arranged on the side of the oven 11, and the present invention is not limited to this.

[0026] In one embodiment, see Figure 1-Figure 5 A first rotating shaft 131 is fixed to the middle of the fresh air door 13, and the first rotating shaft 131 is rotatably set in the oven 11. The adjusting mechanism includes a first rotating driving member, which is connected to the first rotating shaft 131 and is used to drive the first rotating shaft 131 to rotate, thereby driving the fresh air door 13 to rotate to adjust the opening degree of the exhaust port 114.

[0027] In one embodiment, see Figure 1-Figure 5The conveyor belt 2 includes a conveying shell 21, a driving wheel, a driven wheel, a conveying belt 22 and a conveying drive motor 23. The driving wheel and the driven wheel are rotatably arranged at the two ends of the conveying shell 21 respectively. The conveying belt 22 is closed, and its two ends are respectively wound around the driving wheel and the driven wheel. The conveying belt 22 is evenly provided with air holes, and the air holes can allow hot air to pass through. At the same time, the aperture of the air holes is smaller than the size of the black soldier fly, so as to prevent the black soldier fly from falling. The conveying drive motor 23 is connected to the driving wheel and is used to drive the driving wheel to rotate.

[0028] In one embodiment, see Figure 1-Figure 5 The combustion furnace 31 includes a furnace body 311 and a silo 312. The furnace body 311 has a grid plate 3111 therein. The grid plate 3111 divides the inner cavity of the furnace body 311 into a combustion chamber located at the top and an ash falling chamber located at the bottom. A feed port 3112 communicating with the combustion chamber is provided on the side wall of the furnace body 311. An ash outlet 3113 communicating with the ash falling chamber is also provided on the side wall of the furnace body 311. The outlet of the silo 312 is communicated with the feed port 3112.

[0029] In one embodiment, see Figure 1-Figure 5 The heating mechanism 3 also includes a smoke guide pipe 36, a first junction box 361, a second junction box 37 and a smoke exhaust pipe 371. One end of the smoke guide pipe 36 is connected to the smoke outlet of the combustion furnace 31, and the other end of the smoke guide pipe 36 is connected to the first junction box 361. One end of the heat exchange pipe 32 is connected to the first junction box 361, and the other end of the heat exchange pipe 32 is connected to the second junction box 37. One end of the smoke exhaust pipe 371 is connected to the second junction box 37, and the other end of the smoke exhaust pipe 371 is connected to the inlet of the induced draft fan 34.

[0030] In one embodiment, see Figure 1-Figure 5 A plurality of heat dissipation fins 321 are arranged on the outer wall of the heat exchange tube 32 .

[0031] In one embodiment, see Figure 1-Figure 5 An air inlet door 38 is arranged in the air inlet hole 331, and a second rotating shaft 381 is fixed to the middle part of the air inlet door 38. The second rotating shaft 381 is rotatably arranged on the heat exchange box 32. The heating mechanism 3 also includes a second rotating driving member, which is connected to the second rotating shaft 381 and is used to drive the second rotating shaft 381 to rotate, thereby driving the air inlet door 38 to rotate to adjust the opening degree of the air inlet hole 331. When in use, the air inlet door 38 can be driven to rotate by the second rotating driving member to control the opening degree of the air inlet hole 331, thereby controlling the amount of fresh air entering.

[0032] In one embodiment, see Figure 6 and Figure 7 The black soldier fly inactivation and drying device also includes a material dividing mechanism 4, which includes a vibrator 41, a material plate 42, a first-level material dividing member 43 and a second-level material dividing member 44. The material plate 42 is installed at the output end of the vibrator 41, one end of the material plate 42 is used to place materials, and the other end of the material plate 42 is connected to the feeding end of the conveyor belt 2. The first-level material dividing member 43 includes a plurality of material dividing strips 431 fixed on the material plate 42, and each of the material dividing strips 431 is distributed radially, with its convergent end located at one end of the material plate 42 and its divergent end located in the middle of the material plate 42. The second-level material dividing member 44 includes a plurality of material blocking protrusions 441 fixed on the material plate 42, and each of the material blocking protrusions 441 is distributed in front of the material conveying channel defined by two adjacent material dividing strips 431. Since black soldier flies will be crowded together in the silo, insufficient ventilation, uneven drying, blackening and other problems will occur. The material dividing mechanism 4 shakes the material through the vibrator 41, firstly disperses the material through the primary dividing member 43, and the material is formed into a longitudinal strip shape, and then the secondary dividing member 44 disperses the material evenly in the horizontal direction, and drops it onto the conveyor belt 2 for drying.

[0033] The present invention also provides a control method for a black soldier fly inactivation and drying device, which is applicable to the black soldier fly inactivation and drying device and comprises the following steps: S1. Put fuel (such as biomass fuel) into the combustion furnace 31 and ignite it. The smoke generated by the combustion enters the heat exchange tube 32 and is then extracted by the induced draft fan 34. At the same time, the circulating fan 35 is turned on. The outside air enters the heat exchange box 33 from the air inlet 331, is heated by the heat exchange tube 32, and then enters the oven 11, so that the temperature in the oven 11 is raised to a preset temperature. S2, spreading the black soldier flies to the feed end of the conveyor belt 2 through the material distribution mechanism 4, starting the conveyor belt 2, and conveying the black soldier flies to the oven 11 by the conveyor belt 2, inactivating the black soldier flies for 2 to 3 minutes, after which the black soldier flies follow the conveyor belt 2 to leave the oven 11, and collecting the inactivated black soldier flies; S3, the inactivated black soldier flies are again spread on the feed end of the conveyor belt 2 through the dividing mechanism 4, and the conveyor belt 2 is started. The conveyor belt 2 transports the black soldier flies to the oven 11, and the black soldier flies are dried for 15 to 20 minutes. After the drying is completed, the black soldier flies follow the conveyor belt 2 to leave the oven 11, and the dried black soldier flies are collected.

[0034] In addition, please refer to Figure 8 The control modes of the present invention are divided into two types, namely, inactivation mode and drying mode. The parameter settings corresponding to the two modes are as follows: Figure 8 shown.

[0035] like Fig. 9 The following figure shows the control logic diagram of the drying room temperature and ventilation control system, in which the fresh air door, dehumidification fan and circulation fan work together according to the temperature and dehumidification time of the drying room. When the follow mode is turned on, the insulation effect in the drying room is better and fuel is saved. When the follow mode is turned off, the dehumidification effect in the drying room is better.

[0036] like Fig.10 The figure shows the working process of the induced draft fan and the discharge motor. Fig.11 The figure shows the working process of the vibrator, variable frequency motor and circulating fan.

[0037] Protection functions of the control system: (1) Overload protection: When the three-phase power of the fan is unbalanced or overcurrent occurs, the thermal relay will feedback an IO signal to the PLC control board through the contact. The PLC will respond to the feedback signal by: 1- Turn on the dehumidification fan and the fresh air door to start cooling and control the temperature of the assembly line to a lower level; 2- Turn off the feeder and stop feeding; 3- Turn on the induced draft fan to introduce a large amount of fresh air to reduce the furnace temperature to a sufficiently low level to prevent the furnace from overheating and shortening the life of the furnace body; (2) Probe protection function: The system has two temperature measuring probes. When the main temperature sensing probe does not work for 15 minutes, or the probe displays -40°C, it indicates that the probe is faulty. 1. Switch the system to the second probe to start normal operation, and record the time and information of the fault on the touch screen to facilitate customers to find the problem in time; 2. When the second probe also fails, turn on the dehumidification fan and the fresh air door, start cooling, control the temperature of the assembly line to a lower level, turn off the feeder and stop feeding, turn on the induced draft fan, and lower the furnace to a sufficiently low temperature to prevent the furnace from overheating and failing to dissipate heat. The circulating fan is always on.

[0038] The technical solution provided by the present invention uses a set of equipment to inactivate and dry black soldier flies, thereby reducing equipment costs. At the same time, the present invention uses a combustion furnace to burn fuel for heating, and can use biomass fuel for heating. At the same time, the heat generated by the combustion is transferred to the oven 11 through a heat exchange tube, a heat exchange box and a circulating fan to inactivate and dry the black soldier flies, which can reduce processing costs. At the same time, by blowing hot air upward, the black soldier flies on the conveyor belt 2 can be slightly blown up, thereby increasing the contact area between the hot air and the black soldier flies, and improving the drying efficiency.

[0039] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A black soldier fly inactivation and drying device, characterized in that: include: A drying mechanism, the drying mechanism comprising a drying oven and a dehumidifying fan, the drying oven having a closed drying chamber, the side wall of the drying oven having an opening slot and a hot air inlet, the hot air inlet being located below the opening slot, the top surface of the drying oven having a dehumidifying port, the dehumidifying fan being installed at the dehumidifying port; A conveyor belt, the conveyor belt passes through the open slot and is partially built into the drying chamber; A heating mechanism, the heating mechanism includes a combustion furnace, a heat exchange tube, a heat exchange box, an induced draft fan and a circulating fan, the smoke outlet of the combustion furnace is connected to one end of the heat exchange tube, the heat exchange tube is built in the heat exchange box, an air inlet is provided at the upper end of the heat exchange box, an air outlet connected to the hot air inlet is provided at the lower end of the heat exchange box, the inlet of the induced draft fan is connected to the other end of the heat exchange tube, and the outlet of the circulating fan is connected to the air inlet.

2. The black soldier fly inactivation and drying device according to claim 1, characterized in that: The oven is also provided with an exhaust port, and the drying mechanism further comprises a fresh air door and an adjusting mechanism, wherein the fresh air door is arranged at the exhaust port, and the adjusting mechanism is used for driving the fresh air door to move so as to adjust the opening degree of the exhaust port.

3. The black soldier fly inactivation and drying device according to claim 2, characterized in that: A first rotating shaft is fixed to the middle of the fresh air door, and the first rotating shaft is rotatably arranged in the oven. The adjusting mechanism includes a first rotating driving member, and the first rotating driving member is connected to the first rotating shaft and is used to drive the first rotating shaft to rotate.

4. The black soldier fly inactivation and drying device according to claim 1, characterized in that: The conveyor belt includes a conveying shell, a driving wheel, a driven wheel, a conveying belt and a conveying drive motor. The driving wheel and the driven wheel are respectively rotatably arranged at the two ends of the conveying shell. The conveying belt is closed and its two ends are respectively wound around the driving wheel and the driven wheel. The conveying drive motor is connected to the driving wheel and is used to drive the driving wheel to rotate.

5. The black soldier fly inactivation and drying device according to claim 1, characterized in that: The combustion furnace includes a furnace body and a silo. The furnace body is provided with a grid plate, and the grid plate divides the inner cavity of the furnace body into a combustion chamber located at the top and an ash falling chamber located at the bottom. A feed port connected to the combustion chamber is provided on the side wall of the furnace body, and an ash outlet connected to the ash falling chamber is also provided on the side wall of the furnace body. The outlet of the silo is connected to the feed port.

6. The black soldier fly inactivation and drying device according to claim 1, characterized in that: The heating mechanism also includes a smoke guide pipe, a first junction box, a second junction box and a smoke exhaust pipe, one end of the smoke guide pipe is connected to the smoke outlet of the combustion furnace, the other end of the smoke guide pipe is connected to the first junction box, one end of the heat exchange pipe is connected to the first junction box, the other end of the heat exchange pipe is connected to the second junction box, one end of the smoke exhaust pipe is connected to the second junction box, and the other end of the smoke exhaust pipe is connected to the inlet of the induced draft fan.

7. The black soldier fly inactivation and drying device according to claim 1, characterized in that: A plurality of heat dissipation fins are arranged on the outer side wall of the heat exchange tube.

8. The black soldier fly inactivation and drying device according to claim 1, characterized in that: An air inlet door is arranged in the air inlet hole, a second rotating shaft is fixed in the middle of the air inlet door, and the second rotating shaft is rotatably arranged in the heat exchange box. The heating mechanism also includes a second rotating driving member, which is connected to the second rotating shaft and is used to drive the second rotating shaft to rotate.

9. The black soldier fly inactivation and drying device according to claim 1, characterized in that: It also includes a material dividing mechanism, which includes a vibrator, a material plate, a first-level material dividing piece and a second-level material dividing piece. The material plate is installed at the output end of the vibrator, one end of the material plate is used to place materials, and the other end of the material plate is connected to the feeding end of the conveyor belt. The first-level material dividing piece includes a plurality of material dividing strips fixed on the material plate, each of which is radially distributed, with a convergent end located at one end of the material plate and a divergent end located in the middle of the material plate. The second-level material dividing piece includes a plurality of material blocking protrusions fixed on the material plate, each of which is distributed in front of the material conveying channel defined by two adjacent material dividing strips.

10. A control method for a black soldier fly inactivation and drying device, characterized in that: The black soldier fly inactivation and drying device is applicable to any one of claims 1 to 9, and comprises the following steps: S1. Put the fuel into the combustion furnace and ignite it. The smoke generated by the combustion enters the heat exchange tube and is then extracted by the induced draft fan. At the same time, the circulating fan is turned on. The outside air enters the heat exchange box from the air inlet, is heated by the heat exchange tube, and then enters the oven, thereby raising the temperature in the oven to the preset temperature. S2, spreading the black soldier flies to the feed end of the conveyor belt, starting the conveyor belt, and transporting the black soldier flies to the oven by the conveyor belt, inactivating the black soldier flies for 2 to 3 minutes, after which the black soldier flies follow the conveyor belt to leave the oven, and collecting the inactivated black soldier flies; S3, again spreading the inactivated black soldier flies on the feed end of the conveyor belt, starting the conveyor belt, the conveyor belt transports the black soldier flies into the oven, and the black soldier flies are dried for 15-20 minutes. After the drying is completed, the black soldier flies follow the conveyor belt to leave the oven, and the dried black soldier flies are collected.

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