CN112970676A

CN112970676A - An automatic breeding system for black soldier flies based on kitchen waste

Info

Publication number: CN112970676A
Application number: CN201911280503.8A
Authority: CN
Inventors: 吴立俊; 慕峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2021-06-18

Abstract

An automatic breeding system for black soldier flies based on kitchen waste mainly includes a temporary storage tank, an automatic feeding vehicle, a breeding rack, a breeding box, an insect material screening device and a metering baler; the automatic feeding vehicle The culture material is moved and transported back and forth between the temporary storage tank and the breeding rack; the breeding rack has several groups, which are arranged in parallel; several layers of breeding boxes are placed horizontally on the breeding rack; Two screw conveyors, and a third screw conveyor is installed outside; the insect material screening device is connected with the third screw conveyor; the metering baler is connected with the insect material screening device. The automatic breeding system for black soldier flies can process kitchen waste on a large scale, automatically feed the black soldier flies, simply collect the materials, and can efficiently separate the feces and adults. The dried black soldier flies and worm dung produced can be resource-utilized and have economic benefits; the system is intensive, labor-saving and work efficiency is improved, and can be promoted on a large scale.

Description

Automatic black soldier fly breeding system taking kitchen waste as base material

Technical Field

The invention belongs to the technical field of kitchen waste treatment, and relates to an automatic black soldier fly breeding system taking kitchen waste as a base material.

Background

With the rapid development and urbanization of economy, the production amount of kitchen waste is increased year by year, and the pollution problem caused by the kitchen waste is increasingly serious. The kitchen waste is rich in a large amount of organic matters, the recycling of the solid organic matters becomes an important factor of project profitability, and in the traditional process, the solid organic matters are ground into slurry and injected into an anaerobic tank for digestion to produce biogas. Due to the complex components of the garbage, the problems of mechanical abrasion, pipeline blockage, even anaerobic acidification and the like can occur in the links of grinding, pumping, dehydration and the like. In addition, the generated methane needs to be purified and reused, and the problem of the outlet of the generated methane slag also becomes a great difficulty, so that a new method is needed for the resource utilization of the solid organic matters. The method is a better alternative for breeding insects represented by hermetia illucens and the like. The life cycle of the hermetia illucens is 40-45 days, and after 5 stages of eggs, larvae, prepupa, pupae and imagoes, the adult pupae are broken and mated to lay eggs, and then the hermetia illucens survive for about several days and die. In about 10 days after eggs are hatched into larvae, the hermetia illucens larvae live on the nutritional decay, and the food can be efficiently converted into self nutrient substances by taking rotten organic matters such as kitchen waste, animal excrement, animal and plant corpses and the like as food, so that the hermetia illucens larvae are an important part in a natural debris food chain.

Due to the characteristics and the economic value of the hermetia illucens, the perfect solution is provided for breeding the hermetia illucens by utilizing organic matters in the kitchen waste. By utilizing the mode of treating the organic solid waste by the hermetia illucens, the kitchen waste (with the water content of about 80%) can be fed to hermetia illucens larvae, and finally 80% of high-quality insect protein and 20% of nutrient-rich insect manure organic fertilizer are obtained. The cultured insects can be used as protein source feed for the breeding industry, and the insect manure can be directly used as organic fertilizer to return to the field. The organic solid waste is utilized to cultivate the insects, so that not only is the waste treated in large quantity and the waste is changed into valuable, but also a large quantity of cheap production raw materials are provided for the insect breeding system, the production cost is reduced, and the whole treatment process is harmless and is recycled.

The conventional hermetia illucens are cultured in two modes, namely a manual breeding mode, workers operate between simple culture frames, the environment is foul, the efficiency is low, and the hermetia illucens cannot be popularized in a large scale; the other type is mechanized and automated equipment, but the existing equipment has the disadvantages of complex structure, complicated flow, high cost and inconvenient maintenance and repair. Particularly, in the material distribution and box turning links, more intensive, simple and efficient automation equipment and systems are needed.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the automatic black soldier fly breeding system taking the kitchen waste as the base material, which can treat the kitchen waste in a large scale, automatically feed black soldier flies, simply receive materials, efficiently separate insect manure from adults, realize intensive system, save labor, improve working efficiency and be popularized in a large scale.

The technical scheme adopted by the invention is as follows:

an automatic black soldier fly breeding system taking kitchen waste as a base material mainly comprises a temporary storage tank, an automatic feeding vehicle, a breeding frame, a breeding box, an insect screening device and a metering packer; the temporary storage tank is in an inverted cone shape, a stirrer is arranged in the temporary storage tank, and a first screw conveyor is arranged at the bottom of the temporary storage tank; the automatic feeding vehicle moves back and forth between the temporary storage tank and the cultivation frame to transport the cultivation materials; the culture racks are provided with a plurality of groups which are arranged in parallel; a plurality of layers of culture boxes are horizontally placed on the culture rack; a second spiral conveyor is arranged at the bottom of the interior of the culture frame, and a third spiral conveyor is arranged outside the culture frame; the second screw machine is vertically connected with the third screw machine; the worm material screening device is connected with the third screw conveyer; the metering packer is connected with the insect material screening device.

Further, the automatic feeding vehicle is provided with a stirring tank, a conveying steel pipe, a cam feeding pump, a discharging steel pipe, a distributing steel pipe, a beating steel pipe, a valve, a beating hose and a fixed support; the stirring tank is connected with the cam feeding pump through a conveying steel pipe; a discharging steel pipe, a distributing steel pipe, a beating steel pipe and a beating hose are sequentially arranged between the cam feeding pump and the fixed support according to the flowing direction of materials; the discharging steel pipe is connected with the distributing steel pipe through a flange; and a valve is arranged between the knockout steel pipe and the knockout hose.

Further, the agitator tank is the back taper, establishes the second agitator in, and the bottom is external to carry the steel pipe.

Further, a plurality of knockout steel pipes are uniformly welded on the cloth steel pipe; the upper and lower spacing of the knockout steel pipe is matched with the upper and lower floor height of the culture rack; the ramming steel pipes and the ramming hoses are connected in a one-to-one correspondence mode.

Further, the cultivation frame comprises a top cross beam, an upright supporting frame, a bottom bearing frame, a material receiving limiting bin, a bracket and a cylinder actuating mechanism; the vertical support frame is uniformly provided with air cylinder actuating mechanisms and brackets at intervals in the vertical direction in a multilayer manner; a plurality of the culture boxes are horizontally arranged on the single-layer bracket in parallel; the receiving limiting bin is an internal space enclosed by the top cross beam, the upright supporting frame and the bottom bearing frame; and a second screw conveyor is arranged at the bottom of the material receiving limiting bin.

Furthermore, one side of the culture box is provided with a feed inlet end and is in a rectangular shape with an open top; the other side of the culture box is a material pouring port end, the top of the culture box is in a semi-inverted cone shape, and the bottom of the culture box is in a rectangular shape; the material pouring port end of the culture box is provided with a reversed trapezoidal tapered port; the inverted trapezoidal tapered opening extends into the receiving limiting bin; and a round hole with the aperture of 80mm is formed in the inverted trapezoidal tapered port.

Further, the materials are distributed in the breeding box in a fixed time and a fixed amount, the quality of the culture materials added with the kitchen waste is different according to different insect ages, and the frequency is fixed to be twice a day.

Further, the insect material screening device comprises a vibration screening machine, a dryer, an insect excrement temporary storage box and a dry insect temporary storage box; the vibrating screen machine is connected with the worm excrement temporary storage box through a second climbing belt conveyor; the vibration screening machine is connected with the dryer through a horizontal belt conveyor; the dryer is a microwave dryer in assembly line arrangement; the dryer is connected with the dry insect temporary storage box through a first climbing belt conveyor.

Further, the worm excrement temporary storage box and the dry worm temporary storage box are respectively connected with a metering packer.

The invention has the beneficial effects that:

1. the invention provides an automatic black soldier fly breeding system taking kitchen waste as a base material, which has the functions of precise material beating, fixed bed breeding, efficient material receiving, screening, drying, metering, packaging and the like in an intensive, mechanized and systematic mode, and is high in automation degree and working efficiency. Not only can effectively treat the kitchen waste, but also economic benefits can be brought by the produced hermetia illucens dry insects and the insect feces.

2. According to the invention, the plurality of breeding boxes are arranged on the breeding rack in a rectangular array for fixed bed breeding, and the moving, transporting and material-fetching mode of the automatic feeding vehicle is combined, so that the occupied space of the breeding boxes is saved, and the plurality of breeding boxes can be simultaneously distributed, so that the hermetia illucens of the same breeding rack are in the same growth cycle stage.

3. The invention adopts a timed and quantitative feeding mode twice a day, which is consistent with the frequency of kitchen waste collection and transportation on one hand; on the other hand, the black soldier fly larvae can ensure that the materials are eaten cleanly, no overnight residue is left, no peculiar smell is generated due to decay, the environmental sanitation is improved, and the conversion rate of the kitchen waste is improved.

4. According to the invention, the inverted trapezoidal tapered mouth design of the material pouring mouth end of the breeding box is adopted, and the bracket and the cylinder actuating mechanism which are arranged below the breeding box are combined, so that organized, batched and mechanized material pouring operation of mixed materials such as adult hermetia illucens and insect dung is realized, a simplified alternative scheme is provided for complicated box moving and turning over and pouring steps, the working efficiency is improved, and the faults are reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic structural diagram of the temporary storage tank, the automatic feeding vehicle and the cultivation shelf of the invention.

FIG. 3 is a schematic view of the structure between the rearing bed and the insect material sieving device of the present invention.

FIG. 4 is a schematic structural view of the cultivation box of the present invention.

In the figure: 1. a temporary storage tank, 1-1 parts of a fixed bottom frame, 1-2 parts of a first stirrer, 2 parts of a first screw conveyor, 3 parts of an automatic feeding vehicle, 3-1 parts of a stirring tank, 3-2 parts of a second stirrer, 3-3 parts of a conveying steel pipe, 3-4 parts of a cam feeding pump, 3-5 parts of a discharging steel pipe, 3-6 parts of a distributing steel pipe, 3-7 parts of a material beating steel pipe, 3-8 parts of a valve, 3-9 parts of a material beating hose, 3-10 parts of a fixed support, 4 parts of a culture frame, 4-1 parts of a top cross beam, 4-2 parts of a vertical support frame, 4-3 parts of a bottom bearing frame, 4-4 parts of a material receiving and limiting bin, 4-5 parts of a bracket, 4-6 parts of a cylinder executing mechanism, 5 parts of a culture box, 5-1 parts of an inverted trapezoidal gradually-reducing port, 5-2 parts of a round, 6. the system comprises a second screw conveyor, 7 a third screw conveyor, 8 a metering packer, 9 a vibrating screen classifier, 10 a dryer, 11 a temporary worm excrement storage box, 12 a temporary dry worm storage box, 13 a horizontal belt conveyor, 14 a first climbing belt conveyor and 15 a second climbing belt conveyor.

Detailed Description

The present invention is further illustrated by the following examples, which are not intended to limit the invention to these embodiments. It will be appreciated by those skilled in the art that the present invention encompasses all alternatives, modifications and equivalents as may be included within the scope of the claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The utility model provides an use automatic farming systems of heisui river horsefly of kitchen garbage as base material, includes jar 1, first screw conveyer 2, automatic skip 3, breed frame 4, breed box 5, second screw conveyer 6, third screw conveyer 7, worm material screening plant and measurement baling press 8 of keeping in. The temporary storage tank 1 is in an inverted cone shape, is arranged on a fixed underframe 1-1 arranged on the ground, and is internally provided with a first stirrer 1-2; the bottom of the temporary storage tank 1 is provided with a first screw conveyor 2 for conveying the culture materials in the temporary storage tank 1 to an automatic feeding vehicle 3.

The automatic feeding vehicle 3 moves back and forth between the temporary storage tank 1 and the cultivation frame 4 and is used for transporting cultivation materials. The automatic feeding vehicle 3 is provided with a stirring tank 3-1, a second stirrer 3-2, a conveying steel pipe 3-3, a cam feeding pump 3-4, a discharging steel pipe 3-5, a distributing steel pipe 3-6, a material beating steel pipe 3-7, a valve 3-8, a material beating hose 3-9 and a fixed support 3-10. The stirring tank 3-1 is in an inverted cone shape, a second stirrer 3-2 is arranged in the stirring tank, and a conveying steel pipe 3-3 is arranged at the bottom of the stirring tank; the inner wall of the stirring tank 3-1 is attached to the outer wall of the discharge port of the first screw conveyor 2 and used for receiving the culture materials of the temporary storage tank 1. The stirring tank 3-1 is connected with the cam feeding pump 3-4 through a conveying steel pipe 3-3. The cam feed pump 3-4 provides power for further material delivery. The discharging steel pipes 3-5 are connected with the distributing steel pipes 3-6 through flanges; a plurality of knockout steel pipes 3-7 are uniformly welded in the vertical direction of the cloth steel pipes 3-6, and the vertical distance between the knockout steel pipes 3-7 is matched with the upper and lower floor height of the culture rack 4; a plurality of material beating steel pipes 3-7 and material beating hoses 3-9 are correspondingly connected one by one; and a valve 3-8 is arranged between the material beating steel pipe 3-7 and the material beating hose 3-9, and the flow rate of the material beating can be controlled by controlling the opening and closing degree of the valve 3-8. The discharge ports of the material beating hoses 3 to 9 extend into the culture frame 4 and above the opening of the culture box 5; the position of the discharge port of the knockout hose 3-9 can be adjusted and the material can be distributed by controlling the movement of the automatic feeding vehicle 3.

The cultivation frame 4 is provided with a plurality of groups which are arranged in parallel. The cultivation frame 4 comprises a top cross beam 4-1, an upright supporting frame 4-2, a bottom bearing frame 4-3, a material receiving limiting bin 4-4, a bracket 4-5 and a cylinder actuating mechanism 4-6. Wherein, the top cross beam 4-1, the upright supporting frame 4-2 and the bottom bearing frame 4-3 play a role of structural support; the material receiving limiting bin 4-4 is an internal space enclosed by the top cross beam 4-1, the upright supporting frame 4-2 and the bottom bearing frame 4-3. The vertical support frame 4-2 is provided with cylinder actuating mechanisms 4-6 and brackets 4-5 at equal intervals in the vertical direction in a multilayer manner; a plurality of culture boxes 5 are horizontally arranged on the single-layer brackets 4-5 in parallel. The cultivation boxes 5 are arranged on the cultivation frame 4 in a rectangular array, namely a plurality of cultivation boxes 5 are uniformly distributed in the horizontal and vertical directions of the cultivation frame 4. One side of the culture box 5 is a feed inlet end and is in a rectangular shape with an open top; the other side is a material pouring port end, the top is in a semi-inverted cone shape, and the top is rectangular; the material pouring port end of the culture box is provided with an inverted trapezoidal tapered port 5-1; and a round hole 5-2 is formed in the inverted trapezoidal tapered port 5-1, and the diameter of the round hole is 80 mm. The inverted trapezoidal tapered mouth 5-1 of the cultivation box 5 extends into the material receiving limiting bin 4-4 of the cultivation frame 4. The hermetia illucens is bred in breeding the box 5, and breeding the box 5 and arranging on breeding the frame 4 the multilayer, can satisfy the demand of practicing thrift the space, reducing to take up an area of, also can reduce the walking distance of automatic skip 3, practices thrift construction and operation cost.

A second spiral conveyor 6 is arranged inside the bottom of the material receiving limiting bin 4-4 of the culture frame 4, and a third spiral conveyor 7 is arranged outside the material receiving limiting bin; the second screw machine is vertically connected with the third screw machine and can convey materials to the insect material screening device. The worm material screening device is connected with the metering packer 8. The insect material screening device comprises a vibrating screen machine 9, a dryer 10, an insect excrement temporary storage box 11 and a dry insect temporary storage box 12. Wherein, the dryer 10 is a microwave dryer in a pipeline arrangement; the dryer 10 is connected with the vibrating screening machine 9 through a horizontal belt conveyor 13; dryer 10 is connected to a dry insect staging box 12 by a first climbing belt conveyor 14. The worm excrement temporary storage box 11 is connected with the vibration screening machine 9 through a second climbing belt conveyor 15. The worm excrement temporary storage box 11 and the dry worm temporary storage box 12 are respectively connected with the metering packer 8.

The specific operation process is as follows:

pretreatment and culture material conditioning

The solid organic matter base material of the kitchen waste after the pretreatment links such as screening, deoiling and the like has the water content of about 80 percent and the particle size of less than 50 mm, and is transported to a hermetia illucens breeding field.

The transport vehicle pours the kitchen waste base material into the temporary storage tank 1, adds the auxiliary materials, and mixes and stirs the two materials into the culture material. The homogenized culture material is conveyed to a stirring tank 3-1 on a self-propelled feeding vehicle 3 through a first screw conveyor 2; stirring again in the stirring tank 3-1, and mixing well. The materials are thick substances, have certain fluidity, are convenient to convey by a pump, and are easy for feeding and growing of hermetia illucens larvae.

(II) distributing and feeding

After the stirring tank 3-1 on the self-feeding vehicle 3 is filled with the culture material, the feeding is stopped. The self-feeding vehicle 3 is started to move to one side of the cultivation frame 4 and keep a proper distance, so that the material-beating hoses 3-9 are ensured to extend into proper positions in the cultivation frame 4 and on the opening of the cultivation box 5. The breeding boxes 5 are uniformly distributed on the breeding frame 4 in multiple layers and multiple rows, and 4-day-old black soldier fly larvae are inoculated in each breeding box 5. After the self-feeding vehicle 3 finishes positioning, starting a cam feeding pump 3-4, and enabling the kitchen waste to sequentially pass through a discharging steel pipe 3-5, a distributing steel pipe 3-6, a beating steel pipe 3-7, a valve 3-8 and a beating hose 3-9 and fall into a culture box 5; meanwhile, the self-feeding vehicle 3 is started to move along the culture rack 4. Because the material beating hoses 3-9 are in a single-row multilayer type, and the vertical distance is matched with the interlayer distance of the culture frame 4, the self-feeding vehicle 3 can simultaneously distribute a plurality of culture boxes 5 in the same row and different layers on the culture frame 4 in the running process. After the material distribution of one cultivation frame 4 is finished, the cam feeding pump 3-4 stops running, the self-propelled feeding vehicle 3 drives back to the temporary storage tank 1 to replenish the material, and the next cultivation frame 4 is ready for material distribution. The above steps are repeated until all the culture boxes 5 on all the culture racks 4 are completely filled with the culture materials.

A valve 3-8 is arranged between the knockout steel pipe 3-7 and the knockout hose 3-9, so that the material flow can be controlled, and quantitative feeding of hermetia illucens larvae can be realized; the quality of the compost added with the kitchen waste is different according to the age of the insects. After the materials are put into the breeding box 5, the hermetia illucens larvae start to eat food all day and night and grow up day by day. In order to improve the conversion rate of the kitchen waste and reduce the residue of the kitchen waste, the material beating frequency is fixed to be twice a day.

(III) turning over the box to collect and screen and pack

The black soldier fly larvae are cultivated to the harvesting season, namely when worm eggs are cultivated for 15-17 days, grown adults, black granular worm manure and a small amount of residual kitchen waste compost are mainly contained in the cultivation box 5. The next step is to collect and recycle adult hermetia illucens and insect feces in a classified manner. In the box turning and collecting stage, a cylinder actuating mechanism 4-6 on the culture frame 4 is started to drive the bracket 4-5 to turn upwards at a low speed until the included angle between the bracket 4-5 and the upright supporting frame 4-2 is less than 45 degrees. At the moment, the mixed materials in the breeding box 5 are converged to the inverted trapezoidal tapered opening 5-1 under the action of gravity, enter the material limiting bin 4-4 through the round hole 5-2, fall onto a conveying spiral body of a second spiral conveyor 6 arranged at the bottom, and are conveyed to a subsequent insect material screening device through a third spiral conveyor 7. After the culture box 5 is emptied, the cylinder actuating mechanism 4-6 is started, and the bracket 4-5 and the culture box 5 are reset until the culture box is horizontal.

In the insect material screening device, a mixture of adult hermetia illucens, insect manure and a small amount of kitchen waste compost is vibrated on a vibrating screening machine 9, and the insect manure particles are finer and can fall into a conveying belt of a second climbing belt conveyor 15 through sieve holes in the lower part of the vibrating screening machine 9 and are conveyed to an insect manure temporary storage box 11; the adult hermetia illucens fresh insects fall onto a conveying belt of a horizontal belt conveyor 13 through an upper-layer discharge hole of a vibrating screening machine 9 and are conveyed to a dryer 10. And drying at 45-55 ℃, and then changing the adult hermetia illucens into dry insects. The dry insects are conveyed to the dry insect staging box 12 via a first climbing belt conveyor 14. The insect feces and the dry insects which enter the temporary storage box are respectively metered and packaged by respective metering and packaging machines 8.

This farming systems's fortune material, dnockout, collection, screening, stoving, measurement package etc. multichannel process homoenergetic accomplish automatically, need not personnel's operation, and work efficiency is high, and the heisui river horsefly trunk worm and the worm excrement of output can the resource utilization, have economic benefits. The whole breeding workshop is closed, the negative pressure suction is utilized to complete deodorization, and fresh air is supplemented, so that a friendly operation environment is created. In addition, the ambient temperature, humidity, illumination and the like can be adjusted and controlled according to the growth rule of the hermetia illucens.

Claims

1. a black soldier fly automatic breeding system based on kitchen waste is characterized in that: comprising temporary storage tank, automatic feeding vehicle, breeding rack, breeding box, insect material screening device and metering baler; The temporary storage tank is in the shape of an inverted cone, with a stirrer inside, and a first screw conveyor is installed at the bottom; the automatic feeding vehicle moves back and forth between the temporary storage tank and the breeding rack to transport the culture material; the breeding rack has Several groups are arranged in parallel; several layers of breeding boxes are placed horizontally on the breeding rack; a second screw conveyor is installed at the inner bottom of the breeding rack, and a third screw conveyor is installed outside; the second screw conveyor and the The third screw machine is connected vertically; the insect material screening device is connected with the third screw conveyor; the metering baler is connected with the insect material screening device.

2. a kind of black soldier fly automatic breeding system based on kitchen waste according to claim 1, is characterized in that: described automatic feeding vehicle is provided with mixing tank, conveying steel pipe, cam feed pump, Discharging steel pipes, distributing steel pipes, feeding steel pipes, valves, feeding hoses, and fixing brackets; the mixing tank and the cam feed pump are connected by a conveying steel pipe; the cam feed pump and the fixed Between the brackets, according to the flow direction of the material, a discharge steel pipe, a distribution steel pipe, a feeding steel pipe and a feeding hose are arranged in sequence; the discharging steel pipe and the distribution steel pipe are connected by flanges; the feeding steel pipe and There is a valve between the feeding hoses.

3. a kind of automatic breeding system of black soldier flies based on kitchen waste according to claim 1, it is characterized in that: described mixing tank is in the shape of inverted cone, is provided with a second agitator inside, and the bottom is externally connected with a conveying steel pipe .

4. a kind of automatic breeding system of black soldier flies based on kitchen waste according to claim 1, is characterized in that: a plurality of punching steel pipes are evenly welded on the described distributing steel pipe; The spacing is matched with the height of the upper and lower floors of the breeding rack; the feeding steel pipes and the feeding hoses are connected in one-to-one correspondence.

5. a kind of automatic breeding system of black soldier flies based on kitchen waste according to claim 1, is characterized in that: described breeding rack comprises top beam, upright support frame, bottom bearing frame, material receiving limit bins, brackets and cylinder actuators; the vertical support frame is evenly spaced in the vertical direction, and the cylinder actuators and brackets are arranged in multiple layers; a plurality of the breeding boxes are placed horizontally and juxtaposed on the single-layer bracket; The material limiting bin is the inner space enclosed by the top beam, the upright support frame and the bottom bearing frame; the bottom of the receiving limiting bin is provided with a second screw conveyor.

6. a kind of automatic breeding system of black soldier flies based on kitchen waste according to claim 1, is characterized in that: one side of described breeding box is the feeding port end, which is a rectangle with an open top; The other side of the breeding box is the end of the feeding port, the top is semi-inverted conical, and the bottom is rectangular; the feeding port end of the breeding box is provided with an inverted trapezoidal tapered opening; Inside the receiving limit bin; the inverted trapezoidal tapered opening has a circular hole with a diameter of 80mm.

7. a kind of automatic breeding system of black soldier flies based on kitchen waste according to claim 1, it is characterized in that: in the described breeding box, regular quantitative cloth is added, and the quality of the food waste culture material is added according to the age of the insects. Varies, but the frequency is fixed at twice a day.

8. a kind of automatic breeding system of black soldier flies based on kitchen waste according to claim 1, is characterized in that: described insect material screening device comprises vibrating screening machine, dryer, insect excrement temporary storage box and dry insect temporary storage box; the vibrating screening machine and the insect manure temporary storage box are connected by the second climbing belt conveyor; the vibrating screening machine and the dryer are connected by a horizontal belt conveyor; the drying The dryer is a microwave dryer with an assembly line arrangement; the dryer and the dry insect temporary storage box are connected by a first climbing belt conveyor.

9 . The black soldier fly automatic breeding system based on kitchen waste according to claim 1 , wherein the worm manure temporary storage box and the dry worm temporary storage box are respectively connected to a metering baler. 10 .