CN117139327A

CN117139327A - Method and device for processing foodstuff by biotransformation of insects

Info

Publication number: CN117139327A
Application number: CN202311253244.6A
Authority: CN
Inventors: 余广滔; 庞程; 田爽; 杲振; 林永豪
Original assignee: Insep Technology Shenzhen Co ltd
Current assignee: Insep Technology Shenzhen Co ltd
Priority date: 2023-09-26
Filing date: 2023-09-26
Publication date: 2023-12-01
Anticipated expiration: 2043-09-26

Abstract

The application provides a foodstuff treatment method and device for insect bioconversion. The foodstuff processing method of the present application comprises: carrying out solid-liquid separation on the organic waste to obtain a first solid phase and a first liquid phase; crushing and separating the first solid phase to obtain a second solid phase; leading out the leached liquid phase matters in the leaching tank to carry out deslagging and impurity removal treatment to obtain a second liquid phase matters and a third solid phase matters; oil-water separation treatment is carried out on the second liquid phase to obtain a third liquid phase, a fourth solid phase and an oil phase, and the oil phase is output as a crude oil product; collecting the second solid phase matters, the third solid phase matters and the fourth solid phase matters, then squeezing the collected second solid phase matters, the third solid phase matters and the fourth solid phase matters through a squeezing device to obtain primary food matters and fourth liquid phase matters, and outputting the fourth liquid phase matters to a liquid leaching tank, wherein the liquid leaching phase matters in the liquid leaching tank comprise the first liquid phase matters and the fourth liquid phase matters. The method retains the oil content of the primary foodstuff, and provides a nutritional foodstuff for subsequent insect bioconversion systems.

Description

Method and device for processing foodstuff by biotransformation of insects

Technical Field

The application relates to a method and a device for bioconversion of insects, belonging to the technical field of bioconversion of new generation insects.

Background

The insect bioconversion refers to the conversion of low-value organic wastes such as kitchen waste, food processing leftovers and the like into insect products with high nutritive value and economic value, such as insect proteins, insect sand organic fertilizers, high-value extracts and the like, through insect cultivation. The organic waste is subjected to bioconversion by utilizing insects, so that the method is not only beneficial to reducing accumulation and pollution of the waste and promoting clean and sustainable development of the environment, but also can be used as a means of recycling economy, and the waste can be reused as feed, fertilizer or energy after being converted into insect products, thereby being beneficial to reducing waste of resources and improving utilization efficiency of the resources. Research on insect bioconversion will bring immeasurable environmental and economic benefits.

The scheme discloses a food processing method for insect bioconversion and a scheme of an insect bioconversion system by taking hermetia illucens as an example, but the food processing method and the insect bioconversion system are not limited to hermetia illucens cultivation. The hermetia illucens is a resource insect capable of performing efficient insect bioconversion, the engineering life cycle of the hermetia illucens can be controlled to be about 35 days, and a large amount of organic wastes can be converted into insect proteins within 7-10 days by combining the decay property, stress resistance and binge eating property of the hermetia illucens. The traditional black soldier fly larva cultivation is mainly carried out in a ground cultivation mode, namely, a layer of organic waste is firstly paved on an open cement ground, 2-3 years old black soldier fly larvae are randomly scattered on the ground, and after 7-10 days of natural waiting, the grown black soldier fly larvae are harvested in a manual screening mode. It is foreseeable that the black soldier fly larvae harvested in the traditional cultivation mode have uneven quality, the individuals of most of the older larvae are smaller, the content of nutritional ingredients is low, and some individuals develop too quickly and turn black in advance to enter the pre-pupation stage, so that the commercialized value is low; in addition, the ground culture mode directly spreads out organic wastes on the ground, so that the flexibility of continuous biological conversion operation is low, and secondary pollution can be caused to the environment due to the formation of malodorous gas and percolate by fermentation and putrefaction, so that the large-scale industrial culture of the black soldier fly larvae cannot be realized through the ground culture mode.

Based on the biological characteristics of the hermetia illucens, how to improve the quality of the hermetia illucens commodity prepared by biotransformation and to perform industrial scale cultivation become the subject of research in domestic and foreign aspects. In the biotransformation process of hermetia illucens, the pretreatment of organic waste is directly related to the quality of the prepared commodity insects.

Patent CN116274296a discloses a method for treating a full amount of kitchen waste by using hermetia illucens, which adopts a drum hot water flushing process to pretreat the kitchen waste, so that grease and inorganic matters in the kitchen waste are removed, and then a thickener is added into the treated waste to promote the growth of the hermetia illucens. It is worth noting that although more crude oil products for sale can be obtained from kitchen waste by the method, the oil in the black soldier fly foodstuff is extremely low, black soldier fly larvae obtained by biotransformation of the foodstuff are generally white, the quality is low, and the dried commercial insects lack oil fragrance.

CN116213403a discloses a full-flow treatment system and method for insect belly-passing transformation of kitchen waste, wherein the pretreatment unit of the system prepares organic components into organic kitchen slurry and then separates the organic components into grease, water phase and slag phase, wherein the slag phase and part of water phase enter the biological belly-passing transformation unit, and are subject to belly-passing transformation and decomposition by insects in the biological belly-passing transformation unit. The patent also aims at producing more crude oil products, and the hermetia illucens larvae obtained by biotransformation with the fat-free foodstuff have low quality. In addition, note that the intelligent control cultivation equipment of the system comprises a cultivation box, wherein the organic mixed slurry is arranged in the cultivation box during specific operation, and larvae are inoculated into the cultivation box, so that the organic slurry mixture is subjected to bioconversion, and the material after bioconversion enters a screening machine; the functional cultivation box has poor operation flexibility, and if the distributing machine fails, the whole intelligent control cultivation equipment is paralyzed, the continuous treatment of kitchen waste is affected, and the long-acting operation and maintenance of the bioconversion system are not facilitated.

Disclosure of Invention

In view of the above-mentioned deficiencies of the prior art, it is an object of the present invention to provide a method for treating foodstuff by bioconversion of insects.

According to an embodiment of the present invention, there is provided a first aspect of:

a method of treating a foodstuff for bioconversion of insects comprising the steps of:

s10: obtaining organic waste, carrying out solid-liquid separation on the organic waste to obtain a first solid phase substance and a first liquid phase substance, and introducing the first liquid phase substance into a liquid leaching tank for storage;

s20: crushing and separating the first solid phase to obtain a second solid phase;

s30: leading out the leached liquid phase matters in the leaching tank to carry out deslagging and impurity removal treatment to obtain a second liquid phase matters and a third solid phase matters;

s40: oil-water separation treatment is carried out on the second liquid phase to obtain a third liquid phase, a fourth solid phase and an oil phase, and the oil phase is output as a crude oil product;

s50: collecting the second solid phase matters, the third solid phase matters and the fourth solid phase matters, then squeezing the collected second solid phase matters, the third solid phase matters and the fourth solid phase matters through a squeezing device to obtain primary food matters and fourth liquid phase matters, and outputting the fourth liquid phase matters to a liquid leaching tank, wherein the liquid leaching phase matters in the liquid leaching tank comprise the first liquid phase matters and the fourth liquid phase matters.

Further, S60: and (3) carrying out wastewater treatment on the third liquid phase, wherein the wastewater treatment process comprises a homogenization adjustment process and an anaerobic fermentation process.

Further, in the step S40, the oil extraction ratio of the oil-water separation treatment of the second liquid phase is 50% -70%.

Further, the primary foodstuff in step S50 has an organic content of not less than 65% on a dry basis, wherein the total protein and fat content is not less than 25% and the digestible carbohydrate content is not less than 25%.

Further, the pressing device in the step S50 is a grease balancing system, and the pressing process includes: and (3) stirring the solid phase mixture again through a grease balance system, squeezing the solid phase mixture to remove water and oil, balancing the grease of the foodstuff and outputting the primary foodstuff, wherein the solid phase mixture comprises a first solid phase substance, a second solid phase substance and a third solid phase substance.

Further, the grease balancing system includes: the squeezing tank comprises a first tank cylinder, a second tank cylinder and a third tank cylinder which are arranged in the solid-phase mixture treatment sequence direction, wherein the first tank cylinder is used for stirring the solid-phase mixture again, the second tank cylinder is used for squeezing the solid-phase mixture to remove water and oil, and the third tank cylinder is used for carrying out grease balance treatment on the solid-phase mixture subjected to squeezing to remove water and oil and forming primary foodstuff; the first tank cylinder, the second tank cylinder and the third tank cylinder are coaxially arranged, cutter shafts are arranged on the center shafts of the first tank cylinder, stirring blades are arranged in the range of the first tank cylinder, extrusion blades are arranged in the range of the second tank cylinder, forming blades are arranged in the range of the third tank cylinder, the second tank cylinder is a conical cylinder with a closing-in function, and an oil seepage mechanism for increasing the oil content of foodstuff is further arranged in the third tank cylinder.

Further, the oil seepage mechanism comprises a hollow structure arranged on the cutter shaft and oil seepage holes on the cutter shaft, the hollow structure is connected with an external oil conveying pipeline, and the hollow structure discharges grease into primary foodstuff of the third tank through the oil seepage holes on the cutter shaft.

According to an embodiment of the present invention, there is provided a waste treatment method for bioconversion of insects in the first aspect, wherein the second aspect is:

a food processing device for bioconversion of insects, comprising:

the solid-liquid separation device is used for obtaining organic waste, carrying out solid-liquid separation on the organic waste to obtain a first solid phase substance and a first liquid phase substance, and guiding the first liquid phase substance into the liquid leaching tank for storage;

the crushing and separating device is used for crushing and separating the first solid phase substance to obtain a second solid phase substance;

the deslagging and impurity removing device is used for guiding out the leached liquid phase matters in the leaching tank to carry out deslagging and impurity removing treatment to obtain a second liquid phase matters and a third solid phase matters;

the oil-water separation device is used for carrying out oil-water separation treatment on the second liquid phase to obtain a third liquid phase, a fourth solid phase and an oil phase, and outputting the oil phase as a crude oil product;

the squeezing device is used for collecting the second solid phase matters, the third solid phase matters and the fourth solid phase matters, then squeezing the second solid phase matters, the third solid phase matters and the fourth solid phase matters through the squeezing device to obtain primary foodstuff and a fourth liquid phase matters, and outputting the fourth liquid phase matters to the liquid draining pool, wherein the liquid draining phase matters in the liquid draining pool comprise the first liquid phase matters and the fourth liquid phase matters.

A computer device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of:

A computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of:

The invention also provides an insect bioconversion system, which comprises the foodstuff processing device for insect bioconversion, and comprises a cultivation subsystem, a receiving and throwing subsystem and a product post-processing subsystem.

The cultivation subsystem is used for acquiring primary foodstuff in the foodstuff processing device and performing biotransformation of insects, the cultivation subsystem comprises a plurality of cultivation modules, each cultivation module comprises a cultivation bin and an environmental control device, and each cultivation bin comprises a plurality of trays for loading insects and foodstuff;

The collecting and throwing subsystem is used for collecting and screening the advanced larvae and the insect sand which are subjected to bioconversion in the breeding subsystem according to the growth cycle of the insects, obtaining fresh and alive commodity insects, throwing new primary foodstuff and insect seedlings into a material tray and conveying the material tray to a breeding bin;

the product post-treatment subsystem is used for carrying out post-treatment on fresh and alive commodity insects and preparing organic fertilizer by carrying out insect sand fermentation.

Compared with the prior art, the technical scheme provided by the application has the unique beneficial effects that: according to the method for processing the foodstuff by the insect bioconversion, disclosed by the application, the original foodstuff processing process is optimized, more organic matters are recovered, a certain oil content in the foodstuff is maintained so as to promote the full recycling of organic wastes, and the prepared primary foodstuff is high in nutrient content and a certain oil content, so that the quality of commodity insects after the subsequent bioconversion is improved.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

FIG. 1 is a flow chart of a method of treating foodstuff for insect bioconversion in one embodiment;

FIG. 2 is a block diagram of a foodstuff processing apparatus for bioconversion of insects in one embodiment;

FIG. 3 is a schematic diagram showing the structure of a fat balancing system in a foodstuff processing apparatus for bioconversion of insects in one embodiment;

FIG. 4 is a partial schematic view of an oil bleeding mechanism of an oil and fat balancing system according to one embodiment;

FIG. 5 is a schematic diagram showing the structure of a primary foodstuff forming apparatus of a fat balancing system according to an embodiment;

FIG. 6 is a comparative example of the black soldier fly larvae prepared by conventional cultivation (A) and the present invention (B) after screening;

FIG. 7 is a comparison of the dried black soldier fly larvae prepared by conventional cultivation (A) and the invention (B) after microwave drying;

FIG. 8 is a schematic diagram of an oil seepage shaft of the oil seepage mechanism;

fig. 9 is a schematic diagram of an oil-seepage blade structure of the oil-seepage mechanism.

Reference numerals:

11-a speed reducer; 12-driving a motor; 13-a feed inlet; 14-a liquid outlet; 15-knife shaft; 151-oil seepage shaft; 152-fine pores; 16-oil seepage holes; 17-bearing sleeves; 171-oil path; 18-a delivery nozzle; 21-a first canister; 22-a second canister; 23-a third canister; 24-a discharge hole; 31-stirring blade; 32-squeezing the blade; 33-forming a blade; 331-an oil seepage tool apron; 332-oil-impregnated blade; 333-oil-seepage knife hole; 41-a forming device; 42-sealing plates; 43-sliding counter plate; 44-a thrust-reversing spring; 45-forming the mouth.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present application, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Example 1

The technical problems to be solved in the embodiment based on the background technology described in the specification are as follows: in the existing kitchen waste treatment method, based on the thought of obtaining crude oil products, kitchen waste is subjected to more sufficient solid-liquid separation and sufficient grease separation treatment on liquid-phase products, and finally, as many crude oil products as possible are obtained, however, in the organic waste treatment process based on insect bioconversion, the grease content in the solid-phase products needs to be properly reserved so as to improve the quality of commodity insects after subsequent bioconversion.

Based on the above technical problems, the present embodiment provides a method for treating foodstuff by biotransformation of insects, as shown in fig. 1, comprising the steps of:

s40: carrying out oil-water separation treatment on the second liquid phase to obtain a third liquid phase, a fourth solid phase and an oil phase, and outputting the oil phase as a crude oil product, wherein the oil extraction ratio of the oil-water separation treatment of the second liquid phase is 50% -70%;

s50: and collecting the second solid phase, the third solid phase and the fourth solid phase, and then squeezing the collected second solid phase, the third solid phase and the fourth solid phase by a squeezing device to obtain primary foodstuff and a fourth liquid phase, wherein the organic matter content of the primary foodstuff is more than or equal to 65 percent on a dry basis, the total content of protein and fat is more than or equal to 25 percent, and the digestible carbohydrate content is more than or equal to 25 percent.

And outputting the fourth liquid phase matters to a liquid leaching tank, wherein the liquid leaching phase matters in the liquid leaching tank comprise the first liquid phase matters and the fourth liquid phase matters.

Specifically, in this embodiment, unlike the conventional solid phase and liquid phase separation, the liquid phase also contains a large amount of solid phase residue, but the solid phase residue is not always collected in the first solid phase, so the solution makes more full use of the solid phase. In step S30 and step S40, the third solid phase obtained by removing the slag and the fourth solid phase obtained by separating the oil from the water are recombined into the first solid phase to obtain a solid phase mixture, and as many solid phase substances as possible are recombined in the solid phase mixture to obtain more primary foodstuff.

Similarly, a large amount of the fourth liquid phase is obtained when the pressing treatment is performed in step S50, and the fourth liquid phase also contains a large amount of grease, so that the grease in the fourth liquid phase is not recycled in the prior art, and the output of the final crude oil product is not sufficiently improved.

Therefore, the scheme not only utilizes the solid phase residue contained in the liquid phase substance after solid-liquid separation, but also fully utilizes the grease residue contained in the liquid phase substance, and finally, the quantity of the produced crude oil and the quantity of the primary foodstuff are improved.

Further, in the existing kitchen waste treatment process, based on the thought of producing the crude oil product, the kitchen waste is separated by liquid phase substances as much as possible, and then the liquid phase substances are subjected to oil-water separation to obtain the maximized crude oil product, in the step S50 of the scheme, the second solid phase substance and the third solid phase substance which are subjected to squeezing treatment are not subjected to oil-water separation, so that the solid phase substance contains more grease, the fourth liquid phase substance is squeezed out through squeezing treatment, and part of grease is also carried out, but a large amount of grease is still reserved in the primary foodstuff instead of the oil-water separation treatment, and more nutritional foodstuff is provided for a subsequent insect bioconversion system.

It should be explained that, when the second solid phase, the third solid phase and the fourth solid phase are collected, the third solid phase is obtained by deslagging and impurity removing treatment, the third solid phase is retained on the deslagging and impurity removing filter screen for a period of time, the grease in the second liquid phase is remained on the third solid phase, further, the filter screen retaining the third solid phase is immersed back in the upper grease liquid of the second liquid phase, and the third solid phase rich in grease is collected to the squeezing device, so that the grease content of the primary foodstuff can be further improved.

According to the scheme, the original independent solid-phase treatment process and the liquid-phase treatment process are organically combined, the fourth liquid-phase substance containing grease and produced in the solid-phase treatment process, the third solid-phase substance rich in grease and produced in the liquid-phase treatment process and the fourth solid-phase substance are fully utilized, organic wastes are fully utilized, and a certain amount of grease in foodstuff is reserved while the crude oil product is produced, so that the nutritional ingredients of the primary foodstuff are higher, and the quality of commodity insects prepared by subsequent bioconversion is improved.

Further, the method further comprises step S60: and (3) carrying out wastewater treatment on the third liquid phase, wherein the wastewater treatment process comprises a homogenization adjustment process and an anaerobic fermentation process.

Example two

Based on the scheme of the first embodiment, the technical problem to be solved in the first embodiment is that, because the obtained organic waste is unstable in the treatment method, the organic waste in different batches may have higher grease content, the grease content of the produced primary foodstuff is ideal, however, the grease content of the organic waste in the batches is lower, so that the grease content of the produced primary foodstuff in the scheme of the first embodiment is lower, and the minimum grease content required by the insect bioconversion feed cannot be achieved.

The method for processing the foodstuff by the insect bioconversion is a smart system belonging to the insect bioconversion system, and the insect bioconversion system is an unmanned independent operation, and when the squeezing device does not fully squeeze the solid phase mixture, the soft pasty primary foodstuff can be generated, so that the next procedure of receiving the hard pasty or solid primary foodstuff can not be docked, and the operation state of the unmanned independent operation system of the insect bioconversion system is destroyed.

Accordingly, the present embodiment discloses a waste treatment method for bioconversion of insects, comprising the steps of: obtaining organic waste, carrying out solid-liquid separation on the organic waste to obtain a first solid phase substance and a first liquid phase substance, and introducing the first liquid phase substance into a liquid leaching tank for storage; crushing and separating the first solid phase to obtain a second solid phase; leading out the leached liquid phase matters in the leaching tank to carry out deslagging and impurity removal treatment to obtain a second liquid phase matters and a third solid phase matters; oil-water separation treatment is carried out on the second liquid phase to obtain a third liquid phase, a fourth solid phase and an oil phase, and the oil phase is output as a crude oil product; collecting the second solid phase matters, the third solid phase matters and the fourth solid phase matters, then squeezing the collected second solid phase matters, the third solid phase matters and the fourth solid phase matters through a squeezing device to obtain primary food matters and fourth liquid phase matters, and outputting the fourth liquid phase matters to a liquid leaching tank, wherein the liquid leaching phase matters in the liquid leaching tank comprise the first liquid phase matters and the fourth liquid phase matters.

Wherein, the squeezing device is a grease balance system, as shown in fig. 3, the grease balance system includes: the device comprises a squeezing tank, a driving mechanism and a foodstuff forming device.

Specifically, the squeezing tank of the grease balance system comprises a first tank 21, a second tank 22 and a third tank 23 which are arranged in the direction of the solid phase mixture treatment sequence, wherein the first tank 21 is used for stirring the solid phase mixture again, the second tank 22 is used for squeezing the solid phase mixture to remove water and oil, and the third tank 23 is used for carrying out grease balance treatment on the solid phase mixture which is squeezed to remove water and oil and forming primary foodstuff; the first tank 21, the second tank 22 and the third tank 23 are coaxially arranged, the cutter shaft 15 is arranged on the center axis of the first tank 21, the second tank 22 and the third tank 23, the cutter shaft 15 is provided with a stirring blade 31 in the range of the first tank 21, a squeezing blade 32 in the range of the second tank 22 and a forming blade 33 in the range of the third tank 23, the second tank 22 is a conical cylinder with a closing-in opening, and an oil seepage mechanism for increasing the grease content of foodstuff is also arranged in the third tank 23.

The driving mechanism comprises a driving motor 12 and a speed reducer 11, the driving motor 12 is connected with a cutter shaft 15 through the speed reducer 11, the driving motor 12 controls the cutter shaft 15 to rotate, the cutter shaft 15 rotates to drive a stirring blade 31, a squeezing blade 32 and a forming blade 33 to coaxially rotate, the stirring blade 31 rotates to drive a solid phase mixture entering from a feed inlet 13 to move towards a discharge outlet 24 and sufficiently stir and mix, the solid phase mixture mixed by the stirring blade 31 enters a second tank 22 of the squeeze tank, the second tank 22 comprises a cutter shaft 15 in the middle, the squeezing blade 32 on the cutter shaft 15 and a closed tapered cylinder, namely, one side of the cylinder wall of the second tank 22 is large in diameter, the other side of the cylinder wall is small in diameter, so that a closed cylinder is formed, and the inclined cylinder wall guides an extruded fourth liquid phase to a liquid outlet 14 at the bottom of the first tank and leads the extruded liquid phase mixture to a liquid draining pool through the liquid outlet 14. When the obtaining amount of the organic waste material reaches 200 tons/day, the material flow rate input into the feed inlet 13 can reach 135 tons/day, the food flow rate of the primary food produced by the discharge outlet 24 can reach 101 tons/day, and the flow rate of the fourth liquid phase material led out from the discharge outlet can reach 34 tons/day.

In the first tank 21, a preparation device may be further added, the preparation device includes a water adding device, an auxiliary material adding device and a composite strain adding device, the water adding device may add water in the solid mixture according to a proportion, the auxiliary material adding device may add auxiliary materials such as wheat bran into the first tank 21, the composite strain adding device may add beneficial bacteria into the first tank 21, the preparation device may prevent anaerobic stinking or hardening of the primary foodstuff, and then the primary foodstuff is stirred, extruded and formed, so as to finally form the primary foodstuff with proper water content and fluffy structure suitable for efficient feeding and absorption of insect larvae.

The extrusion of the second tank 22 will extrude the solid mixture to a suitable moisture content, at which time the primary foodstuff is substantially shaped, but, based on the above description, the fat content of the organic waste is low in some batches, although more fat can be retained by the embodiment one, the embodiment one is difficult to compensate if the organic waste of the present batch is free of fat or low in fat content, based on which the problem is solved by: the grease content of the primary foodstuff is increased by adding grease to the feed inlet 13, but the grease added through the feed inlet 13 is squeezed out with the fourth liquid phase during the squeezing process, resulting in a great waste of added grease.

The preferred embodiment provides the following scheme:

the novel food oil-water separator further comprises a third tank 23, wherein the third tank 23 is provided with an oil seepage mechanism for adding the oil content of the food, and the oil can infiltrate the squeezed primary food into the oil through the oil seepage mechanism, so that the oil can be completely reserved in the primary food, and the aim of efficiently regulating the oil content is fulfilled.

The oil seepage mechanism comprises various structures, and the embodiment discloses a specific structure as follows: as shown in fig. 4, a hollow structure is provided on the cutter shaft 15 of the third tank 23, and the added grease is introduced into the hollow structure and discharged into the primary foodstuff through the oil seepage holes 16 on the cutter shaft 15, and the grease is dispersed into the primary foodstuff by stirring of the forming blade 33, so that the grease content of the primary foodstuff is increased, and the purpose of balancing the grease is achieved.

The pressing process of the pressing device of this embodiment includes:

s51: a solid phase mixture collecting process, wherein the solid phase mixture comprises a first solid phase substance, a second solid phase substance and a third solid phase substance, and the first solid phase substance, the second solid phase substance and the third solid phase substance are collected and introduced through a feed inlet 13 arranged on a first tank 21;

s52: the solid phase mixture is stirred again through the grease balance system, and the solid phase mixture is fully stirred and pushed to the second tank 22 through the rotation of the stirring blade 31 on the cutter shaft 15;

s53: in the extrusion, water and oil removal process of the solid-phase mixture, under the combined action of the material pushing force of the first tank barrel 21, the pushing force of the extrusion blade 32, the reaction force of the barrel wall of the second tank barrel 22 and the reaction force of the primary foodstuff in the third tank barrel 23, the solid-phase mixture fully extrudes the liquid in the solid-phase mixture and leads the liquid out to a liquid outlet 14 at the bottom of the first tank barrel 21 along the inclined barrel wall of the second tank barrel 22, and the fourth liquid phase formed by the aggregation is led out to a liquid draining pool at the liquid outlet 14;

s54: in the process of balancing the grease of the foodstuff, grease in the hollow structure is discharged into the primary foodstuff through the oil seepage hole 16 on the cutter shaft 15 and is stirred by the forming blade 33 to be pushed to the discharge hole 24;

S55: in the primary foodstuff discharging process, the forming blade 33 pushes the primary foodstuff out of the outlet 24, and the primary foodstuff is discharged through the subsequent receiving process.

The embodiment further provides a preferable scheme, as shown in fig. 8, the cutter shaft 15 is extended to the second cylinder 22, the oil-seepage shaft 151 is additionally installed in the third cylinder 23, the oil-seepage shaft 151 can be installed at the end of the cutter shaft 15 through a matching structure, the oil-seepage shaft 151 is a hollow pipe body, a bearing sleeve 17 is arranged at one end of the oil-seepage shaft 151 close to the cutter shaft 15, the bearing sleeve 17 can be used for bearing and limiting rotation of the oil-seepage shaft 151, an oil way 171 is arranged on the bearing sleeve 17, fine holes 152 are arranged on the pipe wall of the oil-seepage shaft 151 at the installation position of the bearing sleeve 17, and liquid grease can still enter the oil-seepage shaft 151 through the oil delivery nozzle 18, the oil way 171 and a plurality of fine holes 152 under the condition that the fine holes 152 are communicated with the oil way 171 and the rotation state of the oil-seepage shaft 151 is ensured.

Because the cutter shaft 15 and the oil seepage shaft 151 continuously rotate in the working state, and the rotating pushing structure of the device is longer, the support structure is arranged at the bearing sleeve 17, the support structure can be 2-4 support beams, one end of each support beam is connected with the bearing sleeve 17, the other end of each support beam is fixedly connected with the third tank tube 23, the middle part of each support structure can be used for allowing primary foodstuff to pass through, and the support structure can better support the cutter shaft 15. The connecting pipe of the oil delivery nozzle 18 is arranged on the support structure and is guided out to the outside through the side wall of the third tank cylinder 23 in a fitting way, so that the stability of the connecting pipe is prevented from being influenced when the primary foodstuff is pushed and the cutter shaft 15 and the oil seepage shaft 151 rotate.

Therefore, in the working state of the device, when the cutter shaft 15 and the oil seepage shaft 151 are in a rotating state and the primary foodstuff is continuously stirred and propelled, the external liquid grease enters the oil path 171 on the bearing sleeve 17 from the side wall of the third tank 23, the bracket and the oil delivery nozzle 18 through the connecting pipe, the conduction between the oil path 171 and the fine holes 152 is not blocked when the oil seepage shaft 151 rotates, and the liquid grease can be continuously pressed into the pipe wall of the oil seepage shaft 151 and infiltrates into the primary foodstuff through the oil seepage hole 16 and other structures.

Further, in order to better promote the effect of uniformly mixing and dispersing the liquid grease in the primary foodstuff, as shown in fig. 9, the embodiment also provides a preferable scheme as follows: the oil seepage cutter 332 is arranged on the outer side of the tubular oil seepage shaft 151, the oil seepage cutter 332 is arranged on the oil seepage shaft 151 through the oil seepage cutter holder 331, the oil seepage cutter 332 and the oil seepage cutter holder 331 are of hollow structures in the inside and are communicated with each other, a plurality of oil seepage cutter holes 333 are arranged on the front side or the back side, preferably the back side, of the oil seepage cutter 332, when the pressure of liquid grease in the oil seepage shaft 151 is increased, the grease is dispersed into the primary foodstuff through the oil seepage cutter holder 331, the oil seepage cutter 332 and the oil seepage cutter holes 333, and as the oil seepage cutter 332 is penetrated into the primary foodstuff, the oil seepage cutter 332 can stir and push the primary foodstuff and disperse the liquid grease in the rotating process, so that a better grease uniform dispersing effect can be achieved in a shorter time and a shorter distance, and the grease distribution stability of the primary foodstuff is continuously improved. The blade shape in this embodiment is only one of embodiments that can achieve the uniform dispersion effect of the grease, and may be an independent blade, a continuous blade, or a combination thereof, and is not particularly limited. The different types of blade profiles are selected so that the pushing force on the primary foodstuff is different, but the primary foodstuff in the third canister 23 is continuously pushed forward by the primary foodstuff in the second canister 22 even if not pushed by the blade.

Example III

Based on the scheme of the second embodiment, the technical problem to be solved in this embodiment is that the oil seepage mode of the oil seepage mechanism includes that oil seeps from outside to inside or from inside to outside, for example, the oil seepage mechanism of the cutter shaft 15 in the second embodiment is just that oil seeps from inside to outside, because of the existence of the forming blade 33, it is difficult to evenly seep oil into the primary foodstuff, or the purpose of fully stirring evenly and having even oil content can be achieved only by setting the length of the third tank 23 and the forming blade 33 to be longer, and how to achieve even oil dispersion in a shorter space, so that the technical problem that is to be solved is achieved.

Based on the above technical problems, the present embodiment provides a method for processing foodstuff by biotransformation of insects, comprising the steps of:

s541: grease with a hollow structure is discharged into primary foodstuff through an oil seepage hole 16 on the cutter shaft 15;

s542: the forming blade 33 rotates for T time in the forward direction and rotates reversely for 1/4-1 week, and the aim of uniformly dispersing the grease in a range of a shorter mechanical space is fulfilled under the dual actions of the reverse rotation action and the stirring action of the forming blade 33 by utilizing the characteristic that the grease in the primary foodstuff is in a sponge-like extrusion relaxation state under the pressure release state;

S543: the forming blade 33 pushes the primary foodstuff out of the outlet 24 and outputs the primary foodstuff through a subsequent receiving process.

According to the foodstuff processing method, the added grease can be fully dispersed into the primary foodstuff in a short mechanical space, so that the primary foodstuff with the grease reserved is obtained, the foodstuff with higher nutrition is obtained, and the quality of the commodity insects prepared later is improved.

The rotation of the cutter shaft 15 for a period of T and the inversion of 1/4 to 1 week not only can assist in the uniform dispersion of the fat in the primary foodstuff, but also can assist in the extrusion drainage of the primary foodstuff in the second tank 22, because the extrusion dewatering drainage of the primary foodstuff in the second tank 22 is to always extrude the liquid phase from the solid phase mixture, when the liquid is located near the surface of the solid phase mixture, the liquid is extruded by a slight extrusion force, but the liquid located near the center position needs a larger pressure to be extruded, but the inversion can be automatically redispersed when the pressure is released, so that the liquid is easier to discharge when the pressure is increased again.

Further, in order to optimize the molding form of the primary foodstuff, a molding device 41 may be disposed at the discharge port 24, as shown in fig. 5, the molding device 41 includes a sealing cylinder matched with the discharge port 24 of the third tank 23, a sealing plate 42 is disposed at the outer end of the sealing cylinder, the sealing plate 42 cooperates with the sealing cylinder to form a closed space to discharge the primary foodstuff discharged from the discharge port 24 through a molding nozzle 45 at the bottom of the sealing cylinder, the molding nozzle 45 includes a plurality of molding nozzles 45, and the primary foodstuff discharged through the molding nozzle 45 forms a strip-shaped or granular foodstuff, thereby optimizing the molding form of the primary foodstuff.

Further, a sliding counter plate 43 is further arranged in the packaging barrel, the sliding counter plate 43 is connected with the sealing plate 42 through a counter spring 44, when the primary foodstuff is pushed out by the forming blade 33, the slideway counter plate compresses the counter spring 44 backwards and changes the advancing direction of the primary foodstuff, under the action of two forces, the primary foodstuff is discharged through the forming nozzle 45, the slideway counter plate can adjust the pressure of the primary foodstuff in the packaging barrel, so that the forming form of the primary foodstuff is improved, and further, the slideway counter plate can also counter the stirring pressure of the primary foodstuff in the third tank 23 to assist the more uniform dispersion of the grease introduced by the oil seepage device.

Example IV

The present embodiment provides a foodstuff processing apparatus for bioconversion of insects, as shown in fig. 2, comprising:

The technical problem solved by the embodiment is as follows: in the existing kitchen waste treatment method, based on the thought of obtaining crude oil products, kitchen waste is subjected to more sufficient solid-liquid separation and sufficient grease separation treatment on liquid-phase products, and finally, as many crude oil products as possible are obtained, however, in the organic waste treatment process based on insect bioconversion, the grease content in the solid-phase products needs to be properly reserved so as to improve the quality of commodity insects after subsequent bioconversion.

Through the food processing device, not only solid phase residues contained in liquid phase substances are utilized after solid-liquid separation, but also grease residues contained in the liquid phase substances are fully utilized, and finally, the quantity of produced crude oil and the quantity of primary food are improved.

Example five

The present embodiment proposes a computer device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of:

obtaining organic waste, carrying out solid-liquid separation on the organic waste to obtain a first solid phase substance and a first liquid phase substance, and introducing the first liquid phase substance into a liquid leaching tank for storage;

crushing and separating the first solid phase to obtain a second solid phase;

leading out the leached liquid phase matters in the leaching tank to carry out deslagging and impurity removal treatment to obtain a second liquid phase matters and a third solid phase matters;

oil-water separation treatment is carried out on the second liquid phase to obtain a third liquid phase, a fourth solid phase and an oil phase, and the oil phase is output as a crude oil product;

collecting the second solid phase matters, the third solid phase matters and the fourth solid phase matters, then squeezing the collected second solid phase matters, the third solid phase matters and the fourth solid phase matters through a squeezing device to obtain primary food matters and fourth liquid phase matters, and outputting the fourth liquid phase matters to a liquid leaching tank, wherein the liquid leaching phase matters in the liquid leaching tank comprise the first liquid phase matters and the fourth liquid phase matters.

In one embodiment, a computer-readable storage medium is provided, storing a computer program which, when executed by a processor, causes the processor to perform the steps of:

crushing and separating the first solid phase to obtain a second solid phase;

Example six

The embodiment provides an insect bioconversion system, which comprises the foodstuff processing device for insect bioconversion in any embodiment, and further comprises a cultivation subsystem, a receiving and throwing subsystem and a product post-processing subsystem;

FIG. 6 shows comparison of the black soldier fly larvae prepared by screening and conventionally rearing (A) and insect bioconversion (B) of the example. From fig. 6, it can be confirmed that, since the conventional raising method does not uniformly manage the larval ages of hermetia illucens, the feeding process is arbitrarily rough, and the harvested larva with the advanced raising period has uneven size, insect ages and nutrient contents, which greatly affect the subsequent treatment and use, and is difficult to carry out large-scale commercialization treatment. And after the hermetia illucens larvae prepared by the insect bioconversion method are subjected to unified culture management, the obtained hermetia illucens larvae are plump in body and consistent in insect age, and commercialized treatment and deep processing can be performed to form various high-value products.

FIG. 7 shows a comparison of the larvae of hermetia illucens prepared by conventional breeding (A) and bioconversion (B) of insects in this example after microwave oven drying. And in particular, when the drying operation is carried out, the field culture with similar length and the microwave drying of the hermetia illucens advanced larvae biologically transformed by the insects are respectively selected. From fig. 7, it can be verified that the dried black soldier fly sand and larvae obtained by the traditional breeding mode are not easy to screen, and excessive sand still adheres to the insect bodies after drying, so that the whole product is poor and affects the subsequent use, and meanwhile, the white insect bodies can be seen, and the insect bodies are generally thin. And after the hermetia illucens advanced larva prepared by the insect bioconversion method is dried, the larva is rich in nutrient substances such as grease, and the dried larva is bright in color, golden and clean and full. Therefore, the nutritional value and the quality of the commodity insects prepared by the embodiment are further verified to be high.

Those skilled in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, where the program may be stored in a non-volatile computer readable storage medium, and where the program, when executed, may include processes in the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. A method of treating a foodstuff for bioconversion of insects, comprising the steps of:

2. The method for waste treatment by bioconversion of insects of claim 1, further comprising the step of:

s60: and (3) carrying out wastewater treatment on the third liquid phase, wherein the wastewater treatment process comprises a homogenization adjustment process and an anaerobic fermentation process.

3. The method for waste treatment by insect bioconversion according to claim 1, wherein the oil extraction ratio of the oil-water separation treatment of the second liquid phase in the step S40 is 50% -70%.

4. The method for waste treatment by bioconversion of insects according to claim 1, wherein the primary foodstuff in step S50 has an organic content of more than or equal to 65% on a dry basis, wherein the total protein and fat content is more than or equal to 25% and the digestible carbohydrate content is more than or equal to 25%.

5. The method for waste treatment by bioconversion of insects according to claim 1, wherein the pressing means in step S50 is a fat balancing system, and the pressing process comprises: and (3) stirring the solid phase mixture again through a grease balance system, squeezing the solid phase mixture to remove water and oil, balancing the grease of the foodstuff and outputting the primary foodstuff, wherein the solid phase mixture comprises a first solid phase substance, a second solid phase substance and a third solid phase substance.

6. The method of waste treatment for insect bioconversion of claim 5 wherein the fat balancing system comprises: the squeezing tank comprises a first tank cylinder, a second tank cylinder and a third tank cylinder which are arranged in the solid-phase mixture treatment sequence direction, wherein the first tank cylinder is used for stirring the solid-phase mixture again, the second tank cylinder is used for squeezing the solid-phase mixture to remove water and oil, and the third tank cylinder is used for carrying out grease balance treatment on the solid-phase mixture subjected to squeezing to remove water and oil and forming primary foodstuff; the first tank cylinder, the second tank cylinder and the third tank cylinder are coaxially arranged, cutter shafts are arranged on the center shafts of the first tank cylinder, stirring blades are arranged in the range of the first tank cylinder, extrusion blades are arranged in the range of the second tank cylinder, forming blades are arranged in the range of the third tank cylinder, the second tank cylinder is a conical cylinder with a closing-in function, and an oil seepage mechanism for increasing the oil content of foodstuff is further arranged in the third tank cylinder.

7. The method for waste treatment by bioconversion of insects according to claim 6, wherein the oil seepage mechanism comprises a hollow structure arranged on the cutter shaft and oil seepage holes on the cutter shaft, the hollow structure is connected with an external oil conveying pipeline, and the hollow structure discharges grease into the primary foodstuff of the third tank through the oil seepage holes on the cutter shaft.

8. A food processing device for bioconversion of insects, comprising:

9. A computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of the method of any one of claims 1 to 7.

10. An insect bioconversion system comprising a foodstuff processing apparatus for insect bioconversion of claim 8, further comprising a farming subsystem, a receiving and feeding subsystem, and a product post-processing subsystem;