Device capable of degrading kitchen garbage based on hermetia illucens breeding

Abstract

The invention relates to the technical field of kitchen garbage treatment, and discloses a hermetia illucens breeding-based kitchen garbage degrading device which comprises a tank body, the sealing cover is arranged above the tank body; the hopper is arranged in the tank body; the crushing unit is arranged in the tank body and located below the hopper, and the crushing unit is used for crushing the fed kitchen garbage; the discharge valve is arranged below the tank body; the extraction mechanism is arranged on the tank body, and the slurry mixing mechanism comprises a rotating shaft rotationally arranged at the bottom in the tank body, a sleeve shaft fixedly connected to the surface of the rotating shaft, a plurality of groups of first stirring blades distributed on the peripheral edge of the sleeve shaft at equal intervals, and a reciprocating screw rod fixedly connected in the tank body. By arranging the slurry mixing mechanism and the adjusting mechanism, excessive liquid is actively separated, slurry is dynamically extruded, the efficiency of extracting the excessive liquid by the extraction pump is effectively improved, and the ingestion and conversion effects of hermetia illucens larvae on organic components are further improved by controlling the water content of the slurry to be proper.

Description

Technical Field

[0001] This invention relates to the field of kitchen waste treatment technology, and in particular to a device for biodegradable kitchen waste based on the reproduction of black soldier fly larvae. Background Technology

[0002] Black soldier flies (scientific name: *Hemiberlesia lataniae*) are saprophytic insects widely used in the biodegradation and transformation of kitchen waste due to their rapid reproduction, high organic waste conversion rate, and high product added value. Their larvae feed on kitchen waste, converting the organic components into high-protein insect bodies and insect excrement, achieving a closed-loop treatment of "reduction, harmlessness, and resource utilization." In the current treatment process, kitchen waste is transported to the treatment plant by collection vehicles and then conveyed to a sorting platform via a chain conveyor. Inorganic materials are sorted out manually or mechanically to avoid affecting subsequent treatment and the feeding of black soldier flies. The sorted kitchen waste is then crushed in a pulverizer and stirred into a slurry. Auxiliary materials and microbial agents are then added and mixed evenly, thus transforming the original solid waste into a nutrient-suitable slurry for the black soldier flies to feed on.

[0003] A device for treating kitchen waste, disclosed in CN111215433A, includes a housing, an inlet on the housing, a sorting device corresponding to the inlet, a crushing device for crushing larger waste, and a solid-liquid separation device inside the housing. The crushing device includes an outer cylinder, a first cylinder inside the outer cylinder, a grinding component for crushing the waste, and a discharge component that cooperates with the outer cylinder. Although the above technical solution can sort waste according to its size, reduce the amount of crushed waste, and has the advantage of improving waste treatment efficiency.

[0004] However, in the crushing and pulping stage, because kitchen waste itself contains a large amount of broth, existing crushing units cannot effectively achieve uniform mixing of the liquid part and the crushed organic solid part during the processing. This results in a pulp with excessively high water content and excessive thinness. The excessive water content significantly dilutes the concentration of organic matter in the pulp. When black soldier fly larvae feed, they will ingest a large amount of excess water in order to obtain sufficient nutrients, which reduces the larvae's feeding efficiency per unit time. This forces the larvae to consume more energy for water metabolism, reducing their conversion rate and conversion effect of organic components. At the same time, traditional stirring components have a single function and cannot flexibly adjust their own mode according to the consistency of the pulp. They lack an effective mechanism to actively separate and remove the excess liquid part in the pulp during the stirring process, and they also lack the function of dynamically squeezing the thin pulp to accelerate solid-liquid separation. This results in the liquid part and solid components being continuously mixed and difficult to separate. Summary of the Invention

[0005] The purpose of this invention is to provide a device for biodegradable kitchen waste based on the reproduction of black soldier flies, in order to solve the problem mentioned in the background art that the excessive moisture content of the pulp in the existing crushing and pulping process leads to poor feeding and conversion effects of black soldier flies.

[0006] The present invention provides a device for biodegradable kitchen waste based on the reproduction of black soldier fly larvae, which adopts the following technical solution: A device for biodegradable kitchen waste based on black soldier fly larvae reproduction includes: Tank body; A lid is installed on top of the tank. The hopper is located inside the tank. The crushing unit is installed inside the tank and located below the hopper. The crushing unit is used to crush the kitchen waste that is fed in. The discharge valve is located at the bottom of the tank. The extraction mechanism, mounted on the tank, also includes: A mixing mechanism is installed inside a tank. The mixing mechanism includes a rotating shaft rotatably mounted at the bottom of the tank, a sleeve fixedly connected to the surface of the rotating shaft, multiple sets of first stirring blades equidistantly distributed on the outer periphery of the sleeve, and a reciprocating screw fixedly connected inside the tank. A screw sleeve is provided on the reciprocating screw, and second stirring blades corresponding to the first stirring blades are fixedly fixed at equal intervals on the outer periphery of the screw sleeve. The second stirring blades are slidably connected to their corresponding first stirring blades. Each set of second stirring blades is provided with a corresponding baffle plate. Multiple sets of baffle plates are fixedly connected by a sleeve block, which is rotatably sleeved on the screw sleeve. An adjustment mechanism is provided on the upper surface of the screw sleeve, which is used to control the sleeve block to drive the multiple sets of baffle plates to rotate and unfold.

[0007] Furthermore, a protrusion is fixedly connected to the outer edge of the second stirring blade, and a vertical rod is inserted through the protrusion, which is fixedly connected to the corresponding first stirring blade.

[0008] Furthermore, the adjustment mechanism includes multiple sets of swing arms distributed circumferentially along the surface of the lead screw sleeve. One end of each swing arm is rotatably connected to the surface of the lead screw sleeve via a central shaft. A torsion spring is provided on the central shaft. The other end of each swing arm is hinged to a connecting arm. The other end of the connecting arm is rotatably connected to the surface of the sleeve block via a rotating shaft. The sleeve has multiple sets of equidistant sliding grooves on its circumference, and each set of sliding grooves has a slider slidably connected in it, with the slider fixedly connected to the lead screw sleeve.

[0009] Furthermore, a cover plate is fixedly sleeved at the top of the lead screw sleeve, one end of the central shaft is rotatably connected to the cover plate, and an elastic sleeve is provided between the upper surface edge of the sleeve block and the lower surface edge of the cover plate.

[0010] Furthermore, multiple sets of elastic connecting plates are fixedly connected between the first stirring blade and the second stirring blade, and the multiple sets of elastic connecting plates are distributed in a spiral shape.

[0011] Furthermore, the extraction mechanism includes a box installed on the outside of the tank, a storage cavity is opened inside the box, an extraction pump is installed on the box, an output pipe is connected through the output end of the extraction pump, the output pipe extends into the storage box, a delivery pipe is connected through the extraction end of the extraction pump, the other end of the delivery pipe extends into the tank and is connected through a corrugated pipe.

[0012] Furthermore, a drive mechanism is provided on the outside of the tank body. The drive mechanism includes a cover installed on the outside of the tank body, a motor installed inside the cover, a drive gear fixedly connected to the output shaft of the motor, a driven gear meshing with the drive gear, and a drive shaft fixedly connected to the center of the driven gear. The drive shaft is rotatably connected inside the cover, and one end of the drive shaft extends outside the cover and is provided with a transmission component between it and the rotating shaft.

[0013] Furthermore, a gap is left between the outer edge of the second stirring blade and the baffle plate and the inner wall of the tank.

[0014] Furthermore, the size of the baffle plate is consistent with the size of the gap between two adjacent sets of second stirring blades.

[0015] Furthermore, the upper surface of the shield is inclined.

[0016] The beneficial effects of this invention are: By incorporating a mixing mechanism and an adjusting mechanism, the mixing mechanism uses a rotating shaft to drive the first mixing blade to rotate. This, combined with a reciprocating screw and screw sleeve, causes the second mixing blade to move up and down while rotating, creating a three-dimensional mixing trajectory. This effectively prevents slurry stratification and insufficient mixing. Simultaneously, the spiral elastic connecting plate between the first and second mixing blades deforms as the second mixing blade moves up and down, further enhancing the mixing effect and ensuring uniform slurry mixing. This effectively improves the efficiency and stability of the bioconversion treatment of kitchen waste. The adjusting mechanism allows for flexible adjustment based on the slurry consistency. When the slurry in the tank is thick... At that time, under the action of slurry resistance and torsion spring preload, the adjustment mechanism maintains its initial state. The baffle plate rotates with the second stirring blade to assist in stirring. When the slurry is too thin, under the action of centrifugal force, the swing arm overcomes the torsion spring force and drives the baffle plate to rotate and unfold, covering the gap between adjacent second stirring blades. In conjunction with the up and down movement of the screw sleeve, the solid part of the slurry is squeezed, accelerating the separation of liquid and solid. By actively separating excess liquid and dynamically squeezing the slurry, the efficiency of the pump in extracting excess liquid is effectively improved. By controlling the slurry moisture content appropriately, the feeding and conversion effect of black soldier fly larvae on organic components is further enhanced. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a top view of the three-dimensional structure of the present invention; Figure 3 This is a front view cross-sectional view of the tank body of the present invention; Figure 4 This is a three-dimensional structural diagram of the mixing mechanism of the present invention; Figure 5 This is a three-dimensional cross-sectional view of the lead screw sleeve, the second stirring blade, the baffle plate, and the sleeve block of the present invention. Figure 6 This is a three-dimensional structural diagram of the lead screw sleeve, the second stirring blade, the baffle plate, and the sleeve block of the present invention. Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point A in the middle; Figure 8 This is a front view cross-sectional diagram of the screw sleeve, second stirring blade, baffle plate, sleeve block and cover plate of the present invention. Figure 9 This is a three-dimensional structural diagram of the lead screw sleeve, second stirring blade, baffle plate, sleeve block, cover plate and elastic sleeve of the present invention; Figure 10 This is an exploded three-dimensional structural diagram of the lead screw sleeve and sleeve block of the present invention; Figure 11 This is a three-dimensional structural diagram of the elastic sleeve of the present invention; Figure 12 This is a schematic diagram showing the three-dimensional structure of the shielding plate of the present invention in a rotated and unfolded state. Figure 13 This is a three-dimensional structural diagram of the drive mechanism of the present invention.

[0018] In the picture: 1. Tank body; 2. Cover; 3. Hopper; 4. Crusher unit; 5. Discharge valve; 6. Extraction mechanism; 61. Box body; 62. Extraction pump; 63. Output pipe; 64. Conveying pipe; 65. Corrugated pipe; 7. Mixing mechanism; 71. Rotating shaft; 72. Sleeve shaft; 73. First stirring blade; 74. Reciprocating screw; 75. Screw sleeve; 76. Second stirring blade; 761. Protrusion; 762. Vertical rod; 77. Baffle plate; 78. Sleeve block; 79. Elastic connecting piece; 8. Adjustment mechanism; 81. Swing arm; 82. Central shaft; 83. Torsion spring; 84. Connecting arm; 85. Rotating shaft; 86. Slide groove; 87. Sliding block; 88. Cover plate; 89. Elastic sleeve; 9. Drive mechanism; 91. Cover; 92. Motor; 93. Drive gear; 94. Driven gear; 95. Drive shaft; 96. Transmission assembly. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Reference Figures 1-3 The present invention provides a device for biodegradable kitchen waste based on the reproduction of black soldier fly larvae, including a tank 1, a cover 2 disposed above the tank 1, a hopper 3 disposed inside the tank 1, a crushing unit 4 disposed inside the tank 1, a discharge valve 5 disposed below the tank 1, and an extraction mechanism 6 disposed on the tank 1, wherein the crushing unit 4 is located below the hopper 3 and is used to crush the input kitchen waste.

[0021] Specifically, the extraction mechanism 6 includes a box 61 installed on the outside of the tank 1. A storage chamber is opened inside the box 61. An extraction pump 62 is installed on the box 61. The output end of the extraction pump 62 is connected to an output pipe 63, which extends into the storage box. The extraction end of the extraction pump 62 is connected to a conveying pipe 64, and the other end of the conveying pipe 64 extends into the tank 1 and is connected to a corrugated pipe 65. The extraction mechanism 6 is used to extract the excess liquid from the crushed slurry in the tank 1. When the moisture content of the slurry is too high, the extraction pump 62 extracts the excess liquid from the tank 1 through the conveying pipe 64 and the corrugated pipe 65, and transports it to the storage chamber of the box 61 through the output pipe 63 for temporary storage, thereby adjusting the moisture content of the slurry.

[0022] Reference Figures 3-5 It also includes a mixing mechanism 7 installed inside the tank 1. The mixing mechanism 7 is used to pulp the crushed kitchen waste inside the tank 1. Specifically, the mixing mechanism 7 includes a rotating shaft 71 rotatably installed at the bottom of the tank 1, a sleeve shaft 72 fixedly connected to the surface of the rotating shaft 71, multiple sets of first stirring blades 73 equidistantly distributed on the outer periphery of the sleeve shaft 72, and a reciprocating screw 74 fixedly connected inside the tank 1. A screw sleeve 75 is provided on the reciprocating screw 74. The screw sleeve 75 moves up and down along the surface of the reciprocating screw 74. Second stirring blades 76, corresponding one-to-one with the first stirring blades 73, are fixed at equal intervals on the outer periphery of the screw sleeve 75. The second stirring blade 76 is slidably connected to the corresponding first stirring blade 73. A protrusion 761 is fixedly connected to the outer edge of the second stirring blade 76. A vertical rod 762 is inserted through the protrusion 761. The bottom end of the vertical rod 762 is fixedly connected to the corresponding first stirring blade 73. The rotating shaft 71 drives the sleeve shaft 72 and the first stirring blade 73 to rotate, and performs preliminary stirring on the crushed kitchen waste. At the same time, the cooperation between the reciprocating screw 74 and the screw sleeve 75 causes the second stirring blade 76 to move up and down along the vertical rod 762 while rotating with the first stirring blade 73, forming a combined stirring action of rotation and up and down.

[0023] Multiple sets of elastic connecting plates 79 are fixedly connected between the first stirring blade 73 and the second stirring blade 76. The multiple sets of elastic connecting plates 79 are spirally distributed. The elastic connecting plates 79 can deform as the second stirring blade 76 moves up and down. When the second stirring blade 76 moves downward, the elastic connecting plates 79 are squeezed by the relative displacement between the two, and the spiral structure contracts and generates elastic potential energy. At this time, the contracted elastic connecting plates 79 will exert a downward thrust on the surrounding slurry. When the second stirring blade 76 moves upward, the elastic connecting plates 79 unfold under their own elasticity, and the spiral structure expands, generating an upward lifting force on the bottom slurry, turning the slurry at the bottom of the tank 1 upward and mixing it with the material in the middle and upper parts. By coordinating with the rotational movement of the first stirring blade 73 and the second stirring blade 76, a three-dimensional stirring trajectory is formed.

[0024] It should be noted that a torque sensor is installed on the rotating shaft 71. The torque sensor determines the slurry consistency by detecting the resistance torque experienced by the rotating shaft 71 during rotation. Both the sensor and the extraction pump 62 are electrically connected to an external controller. The sensor is installed on the rotating shaft 71 and can rotate synchronously with the rotating shaft 71 to sense the state of the slurry in the tank 1. When the slurry is highly viscous, its resistance to the rotating shaft 71 increases. When the slurry is too thin, the resistance decreases. At this time, the sensor transmits the detected signal to the external controller in real time. The controller makes a judgment based on the preset consistency threshold. When it is determined that the slurry is too thin, it sends a start command to the extraction pump 62. The extraction pump 62 extracts the excess liquid in the tank 1 through the delivery pipe 64 and the bellows pipe 65 until the sensor detects that the slurry consistency has returned to a suitable range. Then the controller issues a stop command, and the extraction pump 62 stops working.

[0025] Furthermore, refer to Figures 5-12Each set of second stirring blades 76 is equipped with a corresponding baffle plate 77. Multiple sets of baffle plates 77 are fixedly connected by sleeve blocks 78. The sleeve blocks 78 are rotatably sleeved on the lead screw sleeve 75. An adjustment mechanism 8 is provided on the upper surface of the lead screw sleeve 75. Specifically, the adjustment mechanism 8 is used to control the sleeve blocks 78 to drive the multiple sets of baffle plates 77 to rotate and unfold. The adjustment mechanism 8 includes multiple sets of swing arms 81 distributed circumferentially along the surface of the lead screw sleeve 75. One end of the swing arm 81 is rotatably connected to the surface of the lead screw sleeve 75 through a central shaft 82. A torsion spring 83 is provided on the central shaft 82. The two ends of the torsion spring 83 are fixedly connected to the swing arm 81 and the lead screw sleeve 75, respectively. The other end of the swing arm 81 is hinged to a connecting arm 84. The other end of the connecting arm 84 is rotatably connected to the surface of the sleeve block 78 through a rotating shaft 85. When the slurry in the tank 1 is thick, the resistance of the slurry to the baffle plate 77 is large. The resistance is transmitted to the swing arm 81 through the sleeve block 78 and the connecting arm 84, causing the swing arm 81 to rotate. When the boom 81 cannot overcome the resistance and the preload of the torsion spring 83, it swings outward. At this time, the adjustment mechanism 8 remains in its initial state, and the baffle 77 is located above the corresponding second stirring blade 76 and rotates with the second stirring blade 76, mainly playing an auxiliary stirring role. When the slurry in the tank 1 is too thin, the slurry resistance is significantly reduced. The centrifugal force generated by the rotation of the shaft 71 drives the swing arm 81 of the adjustment mechanism 8 to overcome the elastic force of the torsion spring 83 and open outward. Through the connecting arm 84, it pushes the sleeve block 78 to rotate around the screw sleeve 75, thereby driving the baffle 77 to rotate and unfold. At this time, the baffle 77 and the second stirring blade 76 are in a closed structure. By cooperating with the up and down movement of the screw sleeve 75, the solid components of the slurry in the tank 1 are squeezed, accelerating the separation of the liquid part and the solid components, thereby further improving the pumping effect of the pumping pump 62. At the same time, it adaptively adjusts according to the slurry state, and the slurry moisture content can be controlled without manual intervention, effectively reducing the processing cost.

[0026] It should be noted that there is a gap between the outer edge of the second stirring blade 76 and the baffle plate 77 and the inner wall of the tank 1. The gap provides a directional outflow channel for the squeezed liquid portion. When the baffle plate 77 rotates and unfolds and moves up and down with the second stirring blade 76, the squeezing of the solid components of the slurry will cause the liquid portion to separate from the solid components. Therefore, the liquid portion will flow towards the inner wall of the tank 1 under the action of the squeezing force and be filtered out along the reserved gap. This allows the pump 62 to more accurately extract the squeezed liquid portion and reduce the accidental extraction of the solid components of the slurry.

[0027] The size of the baffle plate 77 is the same as the size of the gap between the two adjacent sets of second stirring blades 76. After the baffle plate 77 is rotated and unfolded, it can cover the gap between the two adjacent sets of second stirring blades 76. At the same time, after the baffle plate 77 is rotated and unfolded, it moves up and down with the second stirring blades 76, which can prevent the slurry from passing directly through the gap. The upper surface of the baffle plate 77 is set with an inclined surface. The slurry that the baffle plate 77 comes into contact with during the up and down movement slides down along the inclined surface, avoiding the slurry from accumulating due to the flat surface.

[0028] Reference Figure 7 The sleeve 78 has multiple sets of circumferentially spaced grooves 86, and each set of grooves 86 has a slider 87 slidably connected in it. The slider 87 is fixedly connected to the lead screw sleeve 75. The sliding cooperation between the grooves 86 and the slider 87 provides guidance and limit for the rotation of the sleeve 78, ensuring that the sleeve 78 can only rotate stably along the circumference of the lead screw sleeve 75, while avoiding axial displacement or jamming when the baffle 77 is unfolded or retracted.

[0029] Reference Figures 8-11 A cover plate 88 is fixedly sleeved on the top of the lead screw sleeve 75. One end of the central shaft 82 is rotatably connected to the cover plate 88, and the other end of the central shaft 82 is rotatably connected to the surface of the lead screw sleeve 75, thereby improving the stability of the swing arm 81 when rotating. An elastic sleeve 89 is provided between the upper surface edge of the sleeve block 78 and the lower surface edge of the cover plate 88. The elastic sleeve 89 is made of stretchable flexible rubber material and is arranged in a ring shape. Its ring shape can seal between the sleeve block 78 and the cover plate 88, preventing the slurry from seeping into the interior of the adjustment mechanism 8. At the same time, when the sleeve block 78 rotates with the adjustment mechanism 8, the elastic sleeve 89 can deform.

[0030] Reference Figure 3 and Figure 13 A drive mechanism 9 is also provided on the outside of the tank body 1. The drive mechanism 9 includes a cover 91 installed on the outside of the tank body 1, a motor 92 installed inside the cover 91, a drive gear 93 fixedly connected to the output shaft of the motor 92, a driven gear 94 meshing with the drive gear 93, and a drive shaft 95 fixedly connected to the center of the driven gear 94. The drive shaft 95 is rotatably connected inside the cover 91, and one end of the drive shaft 95 extends outside the cover 91. A transmission assembly 96 is provided between the drive shaft 95 and the rotating shaft 71. The transmission assembly 96 includes a pulley fixedly connected to the drive shaft 95 and the rotating shaft 71, and a synchronous belt provided between the pulleys. After the motor 92 is started, the drive gear 93 is controlled to rotate. The drive gear 93 transmits power to the drive shaft 95 at the center of the driven gear 94 through meshing transmission. The drive shaft 95 then transmits power to the rotating shaft 71 of the mixing mechanism 7 through the transmission assembly 96, thereby driving the rotating shaft 71 to rotate.

[0031] This invention provides a device for biodegradable kitchen waste based on black soldier fly larvae reproduction. The working principle is as follows: First, the sorted kitchen waste is fed into the hopper 3 through the cover 2 above the tank 1. Under gravity, the kitchen waste enters the crusher unit 4 located below the hopper 3. The crusher unit 4 crushes the fed kitchen waste into small pieces. The crushed material falls to the bottom of the tank 1. At this time, the drive mechanism 9 is activated, and the motor 92 drives the drive gear 93 to rotate. The drive gear 93 meshes with the driven gear 94, transmitting power to the drive shaft 95. 5. The transmission assembly 96 drives the rotating shaft 71 of the mixing mechanism 7 to rotate. When the rotating shaft 71 rotates, it drives the sleeve shaft 72, the first stirring blade 73 and the second stirring blade 76 to rotate, and performs preliminary stirring on the crushed material. At the same time, the cooperation between the reciprocating screw 74 and the screw sleeve 75 causes the second stirring blade 76 to move up and down along the vertical rod 762 while rotating with the first stirring blade 73, forming a compound stirring action. The elastic connecting piece 79 between the first stirring blade 73 and the second stirring blade 76 deforms as the second stirring blade 76 moves up and down, further assisting the stirring and making the material into a slurry.

[0032] During this process, the torque sensor on the rotating shaft 71 detects the resistance torque experienced by the rotating shaft 71 in real time to determine the consistency of the slurry and transmits the signal to the external controller. When the slurry is too thin, the controller starts the extraction pump 62 of the extraction mechanism 6. At the same time, the slurry resistance decreases, causing the swing arm 81 of the adjusting mechanism 8 to open under the action of centrifugal force, overcoming the elastic force of the torsion spring 83. This pushes the sleeve block 78 to rotate through the connecting arm 84, causing the baffle plate 77 to unfold and cover the gap between the adjacent second stirring blades 76. The baffle plate 77 moves with the second stirring blades 76. The pump moves up and down, squeezing the solid components of the slurry. The squeezed liquid is filtered out through the gap between the second stirring blade 76 and the baffle plate 77 and the inner wall of the tank 1. It is then drawn out by the extraction pump 62 through the delivery pipe 64 and the corrugated pipe 65, and sent to the storage chamber of the box 61 for temporary storage through the output pipe 63. The controller stops the extraction pump 62 when the sensor detects that the slurry consistency is suitable. When the slurry is thick, the baffle plate 77 resets and rotates with the second stirring blade 76 to assist in stirring. Finally, the qualified slurry is discharged through the discharge valve 5 at the bottom of the tank 1 for the black soldier fly to feed on.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for biodegradable kitchen waste based on black soldier fly larvae reproduction, comprising: Tank body (1); A cap (2) is placed above the tank body (1); Hopper (3) is installed inside tank (1); The crushing unit (4) is installed inside the tank (1) and located below the hopper (3). The crushing unit (4) is used to crush the kitchen waste that is fed in. The discharge valve (5) is located below the tank body (1); The extraction mechanism (6), disposed on the tank (1), is characterized in that it further includes: A mixing mechanism (7) is installed inside the tank (1). The mixing mechanism (7) includes a rotating shaft (71) rotatably installed at the bottom of the tank (1), a sleeve shaft (72) fixedly connected to the surface of the rotating shaft (71), multiple sets of first stirring blades (73) equidistantly distributed on the outer periphery of the sleeve shaft (72), and a reciprocating screw (74) fixedly connected inside the tank (1). A screw sleeve (75) is provided on the reciprocating screw (74), and the outer periphery of the screw sleeve (75) is equidistantly fixed with the first stirring blades (73). The corresponding second stirring blade (76) is connected to the corresponding first stirring blade (73) by a limiting sliding connection. Each set of second stirring blades (76) is provided with a corresponding baffle plate (77). Multiple sets of baffle plates (77) are fixedly connected by a sleeve block (78). The sleeve block (78) is rotated and sleeved on the screw sleeve (75). The upper surface of the screw sleeve (75) is provided with an adjustment mechanism (8). The adjustment mechanism (8) is used to control the sleeve block (78) to drive multiple sets of baffle plates (77) to rotate and unfold.

2. The device for biodegradable kitchen waste based on black soldier fly reproduction according to claim 1, characterized in that, The outer edge of the second stirring blade (76) is fixedly connected to a protrusion (761), and a vertical rod (762) is inserted through the protrusion (761). The vertical rod (762) is fixedly connected to the corresponding first stirring blade (73).

3. The device for biodegradable kitchen waste based on black soldier fly reproduction according to claim 1, characterized in that, The adjustment mechanism (8) includes multiple sets of swing arms (81) arranged in a circular pattern along the surface of the lead screw sleeve (75). One end of the swing arm (81) is rotatably connected to the surface of the lead screw sleeve (75) via a central shaft (82). A torsion spring (83) is provided on the central shaft (82). The other end of the swing arm (81) is hinged to a connecting arm (84). The other end of the connecting arm (84) is rotatably connected to the surface of the sleeve block (78) via a rotating shaft (85). The sleeve (78) has multiple sets of sliding grooves (86) equidistantly spaced around its circumference. Each set of sliding grooves (86) has a slider (87) slidably connected to it. The slider (87) is fixedly connected to the lead screw sleeve (75).

4. The device for biodegradable kitchen waste based on black soldier fly reproduction according to claim 3, characterized in that, The top end of the lead screw sleeve (75) is fixedly sleeved with a cover plate (88), one end of the central shaft (82) is rotatably connected to the cover plate (88), and an elastic sleeve (89) is provided between the upper surface edge of the sleeve block (78) and the lower surface edge of the cover plate (88).

5. The device for biodegradable kitchen waste based on black soldier fly reproduction according to claim 1, characterized in that, Multiple sets of elastic connecting plates (79) are fixedly connected between the first stirring blade (73) and the second stirring blade (76), and the multiple sets of elastic connecting plates (79) are distributed in a spiral shape.

6. The device for biodegradable kitchen waste based on black soldier fly reproduction according to claim 1, characterized in that, The extraction mechanism (6) includes a box (61) installed on the outside of the tank (1), a storage cavity is provided inside the box (61), an extraction pump (62) is installed on the box (61), an output pipe (63) is connected to the output end of the extraction pump (62), the output pipe (63) extends into the storage box, a delivery pipe (64) is connected to the extraction end of the extraction pump (62), the other end of the delivery pipe (64) extends into the tank (1) and is connected to a corrugated pipe (65).

7. The device for biodegradable kitchen waste based on black soldier fly reproduction according to claim 1, characterized in that, A drive mechanism (9) is also provided on the outside of the tank (1). The drive mechanism (9) includes a cover (91) installed on the outside of the tank (1), a motor (92) installed in the cover (91), a drive gear (93) fixedly connected to the output shaft of the motor (92), a driven gear (94) meshing with the drive gear (93), and a drive shaft (95) fixedly connected to the center of the driven gear (94). The drive shaft (95) is rotatably connected in the cover (91). One end of the drive shaft (95) extends to the outside of the cover (91) and a transmission component (96) is provided between it and the rotating shaft (71).

8. The device for biodegradable kitchen waste based on black soldier fly reproduction according to claim 1, characterized in that, There is a gap between the outer edge of the second stirring blade (76) and the baffle plate (77) and the inner wall of the tank (1).

9. The device for biodegradable kitchen waste based on black soldier fly reproduction according to claim 1, characterized in that, The size of the baffle plate (77) is the same as the size of the gap between the two adjacent sets of second stirring blades (76).

10. The device for biodegradable kitchen waste based on black soldier fly reproduction according to claim 1, characterized in that, The upper surface of the shield (77) is inclined.

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