Preparation method of bio-organic fertilizer

Abstract

The invention relates to the technical field of bio-organic fertilizers, in particular to a preparation method of a bio-organic fertilizer. A supporting column is arranged at the top of a partition fermentation assembly, a notch is formed in the top of an inner cavity of a protection waste heat recovery assembly, the inner wall of the notch is connected with the surface of the supporting column in a sleeved mode, and the protection waste heat recovery assembly and the outer surface of the partition fermentation assembly are in a non-contact state and form a jacket type structure. A clearance space is formed in the jacket type structure and is used for accommodating heat generated in the fermentation process of the partitioned fermentation assembly. Gas generated through fermentation can rise to the position between the top of the fermentation box and the top of an inner cavity of the heat insulation protection frame and then gradually circulates into a gap jacket between the fermentation box and the heat insulation protection frame along with increase of the gas, and the heat can be absorbed by the outer surface of the fermentation box and is conducted back to the fermentation box again. And continuous heat support is provided for the fermentation process.

Description

Technical Field

[0001] The present invention relates to the technical field of biological organic fertilizers, and specifically, to a preparation method of a biological organic fertilizer. Background Art

[0002] Biological organic fertilizers are complete in nutrient elements, can improve soil, improve soil compaction caused by the use of chemical fertilizers, improve the physical and chemical properties of the soil, and enhance the water retention, fertilizer retention, and fertilizer supply capabilities of the soil. The beneficial microorganisms in biological organic fertilizers form a symbiotic and proliferative relationship with the microorganisms in the soil after entering the soil, inhibit the growth of harmful bacteria and transform them into beneficial bacteria, interact with each other and promote each other, playing a synergistic role as a group. A large number of metabolites are produced during the growth and reproduction of beneficial bacteria, promoting the decomposition and transformation of organic matter, and can directly or indirectly provide various nutrients and stimulating substances for crops, promoting and regulating the growth of crops, increasing soil porosity, permeability and exchangeability, plant survival rate, and increasing beneficial bacteria and soil microorganisms and populations;

[0003] In the early-stage process of biological organic fertilizer fermentation, it is necessary to use the high temperature generated by fermentation to kill harmful pathogenic bacteria and ascarid eggs in livestock and poultry manure, to avoid the harm caused by residual pathogenic bacteria and ascarid eggs in the organic fertilizer to crops and implants. For example, a biological organic fertilizer fermentation tank with the Chinese patent publication number CN112679251A;

[0004] The above fermentation equipment uses a closed space to kill the eggs in the manure with the high temperature generated by fertilizer fermentation. Since different fertilizers, such as wheat straw, manure, rotten vegetable leaves, etc., have different fermentation times, and usually the fermentation duration ranges from 1 to 30 days. During this period, in order to keep the temperature inside the fermentation device cavity within the appropriate range all the time, the heating equipment needs to run for a long time. However, the long-term operation of the heating equipment will consume a large amount of electric energy, resulting in energy waste. Especially in cold regions, the low external temperature environment is extremely unfavorable for fertilizer fermentation. In order to ensure that the fertilizer inside the fermentation device cavity can ferment smoothly and efficiently, the dependence on the heating equipment and the performance requirements are higher, which further exacerbates the problem of energy consumption. Summary of the Invention

[0005] The present invention aims at the technical problems existing in the prior art that the fermentation time required for different fertilizers ranges from 1 to 30 days, and during this period, in order to maintain an appropriate temperature, the heating equipment needs to run for a long time. Especially in cold regions, due to the influence of the low external temperature, the dependence on the heating equipment and the performance requirements are higher, resulting in a large amount of electric energy consumption and energy waste.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] To achieve the above object, the present invention provides a preparation method of a biological organic fertilizer, including the following steps:

[0008] S1. Put the shredded and evenly mixed organic waste with microorganisms into the partition fermentation component in the inner cavity of the protective support main body and wait for fermentation.

[0009] S2. Move the protective waste heat recovery component downward to contact the top of the partition fermentation component, so that the protective waste heat recovery component sleeves on the surface of the partition fermentation component to block external air from entering the inner cavity of the partition fermentation component.

[0010] S3. By sleeving the protective waste heat recovery component on the surface of the partition fermentation component, extend the duration of maintaining an appropriate fermentation temperature in the inner cavity of the partition fermentation component, where:

[0011] A support column is provided at the top of the partition fermentation component. A notch is opened at the top of the inner cavity of the protective waste heat recovery component, and the inner wall of the notch is sleeved on the surface of the support column. The outer surface of the protective waste heat recovery component and the partition fermentation component is in a non-contact state and forms a jacketed structure. A gap space is formed inside the jacketed structure for accommodating the heat generated during the fermentation process of the partition fermentation component, and continuous heat exchange will be carried out on the outer surface of the partition fermentation component. Moreover, a plurality of partition heat insulation plates are provided in the inner cavity of the partition fermentation component. The partition heat insulation plates divide the interior of the partition fermentation component into multiple independent cavities, forming separate fermentation intervals.

[0012] Put the organic fertilizer into the partition fermentation component, and then move the protective waste heat recovery component downward, and gradually insert it into the inner wall of the protective waste heat recovery component along the surface of the support column at the top of the partition fermentation component. Since the partition fermentation component and the protective waste heat recovery component are completely supported by the support column, the inner cavity of the protective waste heat recovery component does not contact the outer surface of the partition fermentation component, and a jacket structure will be formed. During the fermentation process of the organic fertilizer, the heat generated by fermentation will naturally conduct into the jacket space. The protective waste heat recovery component can effectively collect this waste heat, and these collected waste heats can be reversely transferred back to the outer surface of the partition fermentation component to heat the fertilizer inside the fermentation component with waste heat, thereby reducing the dependence on external heating equipment, significantly reducing power consumption, and realizing the efficient utilization of energy. Moreover, in cold regions, this jacket structure is like an additional heat insulation barrier, effectively blocking the influence of the external low temperature on the inside of the partition fermentation component and creating a relatively stable temperature environment for the fermentation of organic fertilizer. By setting a plurality of partition heat insulation plates in the inner cavity of the partition fermentation component, independent cavities formed by the plurality of partition heat insulation plates can simultaneously process different types of organic waste with different fermentation cycles, such as wheat straw, manure, and vegetable leaves, improving the equipment utilization rate, reducing the repeated investment in equipment, and the partition heat insulation plates effectively block the heat transfer between different cavities, ensuring that the fermentation temperatures of each material do not affect each other.

[0013] As a further improvement of the technical solution, the partition fermentation assembly includes a fermentation tank fixedly connected to the inner cavity of the protective support main body. Support columns are fixedly connected to the four corners of the top of the fermentation tank, and fixing grooves are formed on the surface of the fermentation tank;

[0014] The surface of the fixing groove is in contact with the bottom of the protective waste heat recovery assembly;

[0015] During the downward movement of the protective waste heat recovery assembly, the support columns will gradually come into contact with the inner wall of the notch opened by the protective waste heat recovery assembly, and its bottom will gradually approach the fixing groove. The support columns provide vertical positioning and support force for the protective waste heat recovery assembly to ensure its stability in the height direction. Then, the fitting of the fixing groove and the bottom of the protective waste heat recovery assembly not only enhances the stability in the horizontal direction and prevents the protective waste heat recovery assembly from shaking or displacing during operation.

[0016] As a further improvement of the technical solution, a hydraulic device is fixedly connected to the top of the protective support main body. The output end of the hydraulic device is fixedly connected to a lifting frame, and the bottom of the lifting frame is fixedly connected to the top of the protective waste heat recovery assembly;

[0017] By the operation of the hydraulic device, the lifting frame can be driven to move downward to drive the protective waste heat recovery assembly to approach the partition fermentation assembly until its bottom is closely attached to the fixing groove on the outer wall of the fermentation tank, forming a closed jacket structure. At this time, the waste heat generated during the fermentation process of the partition fermentation assembly is stored by the protective waste heat recovery assembly and used to maintain the fermentation temperature, reducing the external heating energy consumption.

[0018] As a further improvement of the technical solution, a gear and rack group is arranged in the inner cavity of the lifting frame. The gear and rack group is composed of multiple gears, and a spiral stirring rod is fixedly connected to the bottom of each gear. The surface of the spiral stirring rod extends out of the bottom of the lifting frame, and its surface is located in the inner cavity of the protective waste heat recovery assembly;

[0019] The protective waste heat recovery assembly is arranged around the outer wall of the fermentation tank. When the protective waste heat recovery assembly and the fermentation tank are in an assembled state, the surface of the spiral stirring rod is located in the inner cavity of the fermentation tank;

[0020] A plurality of partition heat insulation plates are arranged in the inner cavity of the fermentation tank, and a spiral stirring rod is correspondingly arranged in each independent cavity;

[0021] When the spiral stirring rod is located in the interval separated by a single partition heat insulation plate, the driving motor of the gear rack group works, which can drive the rotation of a single gear in the gear rack group. Then the rotation of the single gear can drive the spiral stirring rod at the bottom to rotate in the inner cavity of the single partition heat insulation plate. And a rack is meshed and connected to the outer edge of the single gear. At this time, the mutual cooperation between the rack and the gear can make multiple gears rotate simultaneously, so that multiple spiral stirring rods rotate in the inner cavities of the corresponding partition heat insulation plates, enabling the organic waste to come into full contact with the microorganisms, air, etc. required for fermentation and accelerating the fermentation process.

[0022] As a further improvement of this technical solution, the protective waste heat recovery component includes a heat insulation protective frame fixedly connected to the bottom of the lifting frame. A stirring groove adapted to the rotation of the spiral stirring rod is opened at the top of the heat insulation protective frame. A fixed frame is fixedly connected to the bottom of the inner cavity of the heat insulation protective frame, and a plurality of heat insulation plates are fixedly connected to the top of the inner cavity of the heat insulation protective frame;

[0023] The bottom of the heat insulation plate contacts the top of the partition heat insulation plate to form a separate cavity;

[0024] And both the heat insulation plate and the partition heat insulation plate use a metal material as the substrate, and rock wool heat insulation is covered on its surface;

[0025] During the fermentation process, a large amount of waste heat is generated in the fermentation tank. Since the heat insulation plate is in direct contact with the top of the fermentation tank and the material is a metal substrate covered with rock wool, the metal substrate, with its stable structure, strongly supports the rock wool. Due to the extremely low thermal conductivity of the rock wool, it can efficiently block heat transfer. The contact between the bottom of the heat insulation plate and the top of the partition heat insulation plate enables it to effectively maintain the temperature between them. And after a plurality of heat insulation plates and the corresponding partition heat insulation plates are combined, multiple independent intervals are constructed in the fermentation tank. The heat in each interval is restricted within this area, avoiding a large amount of heat dissipation to other intervals, so that the temperature of each interval can be stably maintained within the range suitable for microbial fermentation.

[0026] As a further improvement of this technical solution, a fixed frame is fixedly connected to the bottom of the heat insulation protective frame. The bottom of the fixed frame contacts the surface of the fixed groove, and an arc-shaped groove is opened at the top of the fixed frame;

[0027] When the waste in the inner cavity of the fermentation box ferments, the temperature inside the cavity rises, accompanied by the generation of a large amount of gas. These gases rise due to heat and reach the top of the heat insulation protection frame. As the gas continues to increase, it gradually fills the gap between the heat insulation protection frame and the surface of the fermentation box. Since the fixing frame is installed at the bottom of the heat insulation protection frame and is in a relatively low position of the fermentation box, when the amount of gas generated is small, the gas will not directly be discharged to the outside through the arc-shaped groove, but will accumulate on the outer wall of the fermentation box, using the waste heat it carries to play a certain heat preservation role on the outer wall of the fermentation box, which helps to maintain the appropriate temperature required for fermentation. When the gas continues to be generated and gradually increases to a certain amount, the excess gas will be discharged through the arc-shaped groove, thus ensuring the stability of the internal air pressure of the device while reasonably utilizing the waste heat of the gas.

[0028] As a further improvement of this technical solution, multiple ventilation grooves are opened at the bottom of the fermentation box. These ventilation grooves are distributed in multiple numbers, and each group of ventilation grooves corresponds to each interval separated by the partition heat insulation board respectively;

[0029] A plurality of heating devices are fixedly connected to the inner cavity of the fermentation box. Each heating device is distributed corresponding to the interval divided by the partition heat insulation board, and can heat each interval separately;

[0030] An oxygen control component is arranged in the inner cavity of the fermentation box;

[0031] The amount of oxygen passing through the ventilation grooves is controlled by the oxygen control component. Through the multiple groups of ventilation grooves opened at the bottom of the fermentation box, and each group of ventilation grooves corresponds to an interval separated by the partition heat insulation board respectively, a basic oxygen supply channel is provided for the fermentation process. Air can naturally enter each fermentation interval through these ventilation grooves to meet the basic oxygen demand for aerobic fermentation of microorganisms. And the oxygen control component can simultaneously increase or decrease the ventilation volume of oxygen entering the ventilation grooves to maintain the stability of the oxygen content. Each heating device corresponding to the interval of the partition heat insulation board starts to work. These heating devices can provide heat for the intervals they are responsible for, so that each interval can be maintained within the optimal temperature range for microbial fermentation. When the temperature of a certain interval is lower than the set value, the heating device corresponding to this interval will automatically turn on the heating function, and when the temperature reaches the set value, the heating device will stop heating.

[0032] As a further improvement of this technical solution, the oxygen control component includes a support frame fixedly connected to the inner wall of the fermentation box, and a plurality of air inlet grooves are opened on the surface of the support frame;

[0033] Each air inlet groove corresponds to each group of ventilation grooves;

[0034] A slide rail is arranged inside the support frame, and a baffle is slidably connected to the inner wall of the slide rail. A handle is fixedly connected to the end of the baffle;

[0035] By opening air inlet grooves on the surface of the support frame, oxygen can enter the corresponding partition heat insulation board area through the ventilation grooves, enabling the waste materials inside the area to undergo chemical reactions with oxygen. The shape of the baffle is designed to fit the space of the air inlet groove. When the handle is pulled, the baffle originally blocking the air inlet groove moves, separating the baffle from the air inlet groove and opening the gap of the air inlet groove originally blocked by the baffle. At this time, air can circulate smoothly, enter the bottom cavity of the fermentation box through this, and then flow into the areas divided by each partition heat insulation board through the support columns, realizing the adjustment of the oxygen supply amount in the fermentation box.

[0036] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0037] 1. In the preparation method of this bio-organic fertilizer, the gas generated by fermentation will rise between the top of the fermentation box and the inner cavity top of the heat insulation protection frame, and then gradually flow into the gap jacket between the fermentation box and the heat insulation protection frame as the gas increases. These heats will be absorbed by the outer surface of the fermentation box and conduct this part of the heat back to the fermentation box again, providing continuous heat support for the fermentation process;

[0038] When the gas volume is small, the waste heat carried by these gases can play a heat preservation role for the outer wall of the fermentation box, making reasonable use of the waste heat of the gas. When the gas volume gradually increases, it is discharged through the arc-shaped groove on the fixed frame, which not only realizes the control of the air pressure inside the device but also makes full use of the waste heat of the gas, solving the problem of excessive energy consumption.

[0039] 2. In the preparation method of this bio-organic fertilizer, multiple heat insulation boards are combined with the corresponding partition heat insulation boards to construct multiple independent areas inside the fermentation box. The heat of each area is restricted within this area, avoiding a large amount of heat dissipation to other areas, keeping the temperature of each area stable within the range suitable for microbial fermentation, preventing the fermentation of different areas from interfering with each other, and ensuring the fermentation of organic waste materials in each area at an ideal temperature. During the fermentation process, the heat insulation boards are in direct contact with the top of the fermentation box, and a large amount of waste heat generated inside the fermentation box can be collected. These waste heats are retained in each area to assist fermentation, helping to maintain the temperature conditions required for fermentation.

[0040] 3. In the preparation method of this bio-organic fertilizer, the ventilation grooves provide a basic oxygen supply channel to meet the basic needs of aerobic fermentation of microorganisms. And by opening air inlet grooves on the support frame, oxygen is transmitted to the corresponding ventilation grooves and partition areas, ensuring that there is oxygen for the waste materials to undergo chemical reactions. The shape of the baffle is adapted to the space of the air inlet groove. When the handle is pulled, the separation degree between the baffle and the air inlet groove can be controlled, thereby controlling the ventilation volume of the air inlet groove and avoiding adverse effects on the fermentation process due to excessive or insufficient oxygen supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic assembly diagram of the overall structure of the present invention;

[0042] Figure 2 Schematic diagram of the internal structure of the protection bracket main body of the present invention;

[0043] Figure 3 Schematic diagram of the separation of the heat insulation protection frame and the surface of the partition fermentation assembly of the present invention;

[0044] Figure 4 Schematic diagram of the inner cavity structure of the heat insulation protection frame of the present invention;

[0045] Figure 5 Schematic diagram of the enlarged structure at position A of the present invention;

[0046] Figure 6 Partial schematic diagram of the enlarged structure at position B of the present invention;

[0047] Figure 7 Schematic diagram of the lifting frame structure of the present invention;

[0048] Figure 8 Top view plane structure schematic diagram of the fermentation box of the present invention;

[0049] Figure 9 Schematic diagram of the gas flow direction indication during fermentation of the present invention;

[0050] Figure 10 Front view plane structure schematic diagram when the protection waste heat recovery component and the partition fermentation component of the present invention are separated;

[0051] The meanings of each label in the figure are as follows:

[0052] 100, protection bracket main body; 110, hydraulic equipment; 120, lifting frame; 130, gear rack group; 140, spiral stirring rod;

[0053] 200, protection waste heat recovery component; 210, heat insulation protection frame; 2101, stirring tank; 220, fixing frame; 2201, arc groove; 230, heat insulation board;

[0054] 300, partition fermentation component; 310, fermentation box; 3101, support column; 3102, fixing groove; 3103, ventilation groove; 320, partition heat insulation board; 330, heating equipment;

[0055] 400, oxygen control component; 410, support frame; 4101, air inlet groove; 4102, slide rail; 420, baffle; 430, handle. Detailed implementation manners

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0057] Embodiment 1

[0058] Please refer to Figures 1-10 As shown, this embodiment provides a preparation method of a biological organic fertilizer, including the following steps:

[0059] S1. Put the organic waste that has been crushed and mixed evenly with microorganisms into the partition fermentation assembly 300 in the inner cavity of the protective support main body 100 and wait for fermentation;

[0060] S2. Move downward through the protective waste heat recovery assembly 200 to contact the top of the partition fermentation assembly 300, so that the protective waste heat recovery assembly 200 is sleeved on the surface of the partition fermentation assembly 300 to block external air from entering the inner cavity of the partition fermentation assembly 300;

[0061] S3. Extend the duration of maintaining a suitable fermentation temperature in the inner cavity of the partition fermentation assembly 300 by sleeving the protective waste heat recovery assembly 200 in the inner cavity of the partition fermentation assembly 300, where:

[0062] A support column 3101 is provided at the top of the partition fermentation assembly 300. A notch is opened at the top of the inner cavity of the protective waste heat recovery assembly 200, and the inner wall of the notch is sleeved on the surface of the support column 3101, so that the protective waste heat recovery assembly 200 is connected to the partition fermentation assembly 300 through the support column 3101. The outer surfaces of the protective waste heat recovery assembly 200 and the partition fermentation assembly 300 are in a non-contact state and form a jacketed structure. A gap space is formed inside the jacketed structure for accommodating the heat generated during the fermentation of the partition fermentation assembly 300, and continuous heat exchange will be carried out on the outer surface of the partition fermentation assembly 300. A plurality of partition heat insulation plates 320 are provided in the inner cavity of the partition fermentation assembly 300. The partition heat insulation plates 320 divide the interior of the partition fermentation assembly 300 into a plurality of independent cavities, and each cavity forms a separate fermentation area;

[0063] Considering that the fermentation time of organic fertilizers usually ranges from 1 to 30 days. During this period, in order to keep the temperature inside the fermentation device cavity within an appropriate range all the time, the heating equipment needs to run for a long time. However, the long-term operation of the heating equipment will consume a large amount of electric energy, resulting in energy waste. Especially in cold regions, the low external temperature environment is extremely unfavorable for fertilizer fermentation. To ensure that the fertilizers inside the fermentation device cavity can ferment smoothly and efficiently, the dependence on and performance requirements for the heating equipment are higher, which further exacerbates the problem of energy consumption. Therefore, put the organic fertilizer into the partition fermentation component 300, and then move the protective waste heat recovery component 200 downward, gradually inserting it into the surface of the support column 3101 at the top of the partition fermentation component 300 on the inner wall of the protective waste heat recovery component 200. Since the partition fermentation component 300 and the protective waste heat recovery component 200 are completely supported by the support column 3101, the inner cavity of the protective waste heat recovery component 200 does not contact the outer surface of the partition fermentation component 300, and a jacket structure will be formed. During the fermentation process of the organic fertilizer, the heat generated by fermentation will naturally conduct into the jacket space. The protective waste heat recovery component 200 can effectively collect this waste heat, and the collected waste heat can be reversely transferred back to the outer surface of the partition fermentation component 300 to heat the fertilizers inside the fermentation component 300 with waste heat, thereby reducing the dependence on external heating equipment, significantly reducing power consumption, and achieving efficient utilization of energy. Moreover, in cold regions, this jacket structure is like an additional heat insulation barrier, effectively blocking the influence of the external low temperature on the inside of the partition fermentation component 300 and creating a relatively stable temperature environment for the fermentation of organic fertilizers;

[0064] At the same time, considering that the fermentation equipment uses a closed space to kill the eggs in the feces with the high temperature generated by fertilizer fermentation. Since different fertilizers, such as wheat straw, feces, rotten vegetable leaves, etc., have different fermentation times, it is necessary to separately equip multiple fermentation equipment to ferment different organic wastes. Therefore, by arranging a plurality of partition heat insulation plates 320 in the inner cavity of the partition fermentation component 300, independent cavities formed by arranging the plurality of partition heat insulation plates 320 can simultaneously process different types of organic wastes with different fermentation cycles, such as wheat straw, feces, vegetable leaves, etc., improving the equipment utilization rate, reducing the repeated investment in equipment, and the partition heat insulation plates 320 effectively block the heat transfer between different cavities, ensuring that the fermentation temperatures of each material do not affect each other.

[0065] On the above basis, the specific structure is disclosed in detail:

[0066] In order to ensure that the notch in the inner cavity of the protective waste heat recovery component 200 can remain stable after being sleeved with the surface of the support column 3101 during the downward movement, it is necessary to further disclose the parts of the partition fermentation component 300. Therefore, the partition fermentation component 300 includes a fermentation tank 310 fixedly connected to the inner cavity of the protective bracket main body 100. Four corners of the top of the fermentation tank 310 are respectively fixedly connected with support columns 3101, and fixing grooves 3102 are formed on the surface of the fermentation tank 310;

[0067] The surface of the fixing groove 3102 contacts the bottom of the protective waste heat recovery component 200. During the downward movement of the protective waste heat recovery component 200, the support column 3101 will gradually contact the inner wall of the notch opened by the protective waste heat recovery component 200, and its bottom will gradually approach the fixing groove 3102. The support column 3101 provides vertical positioning and supporting force for the protective waste heat recovery component 200 to ensure its stability in the height direction. Then, the fitting of the fixing groove 3102 with the bottom of the protective waste heat recovery component 200 not only enhances the stability in the horizontal direction but also prevents the protective waste heat recovery component 200 from shaking or displacing.

[0068] Considering that when the material is put into the inner cavity of the partition fermentation component 300, it is first necessary to move the protective waste heat recovery component 200 upward away from the top of the partition fermentation component 300. Therefore, a hydraulic device 110 is fixedly connected to the top of the protective bracket main body 100. The output end of the hydraulic device 110 is fixedly connected with a lifting frame 120, and the bottom of the lifting frame 120 is fixedly connected with the top of the protective waste heat recovery component 200. By operating the hydraulic device 110, the lifting frame 120 can be driven to move downward to drive the protective waste heat recovery component 200 close to the partition fermentation component 300 until its bottom is tightly fitted with the fixing groove 3102 on the outer wall of the fermentation tank 310 to form a closed jacket structure. At this time, the waste heat generated during the fermentation process of the partition fermentation component 300 is stored by the protective waste heat recovery component 200 and used to maintain the fermentation temperature, reducing the external heating energy consumption.

[0069] And considering that the partition heat insulation plate 320 arranged in the inner cavity of the partition fermentation component 300 can divide the space in the partition fermentation component 300 into separate intervals for storing different wastes, but during the fermentation process, a stirring roller is also needed to mix the wastes. Therefore, a gear and rack group 130 is arranged in the inner cavity of the lifting frame 120. The gear and rack group 130 is composed of multiple gears, and a spiral stirring rod 140 is fixedly connected to the bottom of each gear. The surface of the spiral stirring rod 140 extends out of the bottom of the lifting frame 120, and its surface is located in the inner cavity of the protective waste heat recovery component 200;

[0070] The heat protection and waste heat recovery component 200 is disposed around the outer wall of the fermentation tank 310. When the heat protection and waste heat recovery component 200 and the fermentation tank 310 are in an assembled state, the surface of the spiral stirring rod 140 is located in the inner cavity of the fermentation tank 310;

[0071] A plurality of partition heat insulation plates 320 are provided in the inner cavity of the fermentation tank 310, and a spiral stirring rod 140 is correspondingly arranged in each independent cavity; when the spiral stirring rod 140 is located in the interval separated by a single partition heat insulation plate 320, the driving motor of the gear rack group 130 works, which can drive a single gear in the gear rack group 130 to rotate. Then, the rotation of the single gear can drive the spiral stirring rod 140 at the bottom to rotate in the inner cavity of a single partition heat insulation plate 320, and a rack is meshed with the outer edge of the single gear. At this time, the mutual cooperation between the rack and the gear can make multiple gears rotate simultaneously, so that multiple spiral stirring rods 140 rotate in the inner cavity of the corresponding partition heat insulation plate 320, enabling the organic waste to fully contact with the microorganisms, air, etc. required for fermentation, and accelerating the fermentation process.

[0072] In order to enable the heat protection and waste heat recovery component 200 to cooperate with the fermentation of the fermentation tank 310, it is necessary to further disclose the parts of the heat protection and waste heat recovery component 200. Therefore, the heat protection and waste heat recovery component 200 includes a heat insulation protection frame 210 fixedly connected to the bottom of the lifting frame 120. A stirring groove 2101 adapted to the rotation of the spiral stirring rod 140 is provided at the top of the heat insulation protection frame 210. A fixing frame 220 is fixedly connected to the bottom of the inner cavity of the heat insulation protection frame 210, and a plurality of heat insulation plates 230 are fixedly connected to the top of the inner cavity of the heat insulation protection frame 210;

[0073] The bottom of the heat insulation plate 230 contacts the top of the partition heat insulation plate 320 to form a separate cavity;

[0074] Both the heat insulation plate 230 and the partition heat insulation plate 320 use a metal material as the substrate, and the surface is covered with rock wool insulation. During the fermentation process, a large amount of waste heat is generated in the fermentation tank 310. Since the heat insulation plate 230 is in direct contact with the top of the fermentation tank 310 and the material is a metal substrate covered with rock wool, the metal substrate, with its stable structure, strongly supports the rock wool. Due to the extremely low thermal conductivity of the rock wool, it can efficiently block heat transfer. The contact between the bottom of the heat insulation plate 230 and the top of the partition heat insulation plate 320 enables it to effectively maintain the temperature between them. And after a plurality of heat insulation plates 230 and the corresponding partition heat insulation plates 320 are combined, a plurality of independent intervals are constructed in the fermentation tank 310, and the heat of each interval is limited in this area, avoiding a large amount of heat dissipation to other intervals, so that the temperature of each interval can be stably maintained within the range suitable for microbial fermentation.

[0075] Considering the contact between a single partition heat insulation plate 320 and the heat insulation plate 230, more CO will be generated during the fermentation of the waste 2, if the gas is not discharged in time, the air pressure inside the device will continue to rise. The excessive air pressure may damage the sealing structure of the device. Moreover, a certain concentration of CO 2 has an impact on microbial fermentation. Therefore, a fixing frame 220 is fixedly connected to the bottom of the heat insulation protection frame 210. The bottom of the fixing frame 220 contacts the surface of the fixing groove 3102, and an arc-shaped groove 2201 is formed at the top of the fixing frame 220. When the waste material in the inner cavity of the fermentation tank 310 ferments, the temperature inside the cavity rises, and a large amount of gas is generated. These gases rise due to heat and reach the top of the heat insulation protection frame 210. As the gas continues to increase, it gradually fills the gap between the heat insulation protection frame 210 and the surface of the fermentation tank 310. Since the fixing frame 220 is installed at the bottom of the heat insulation protection frame 210 and is at a relatively low position of the fermentation tank 310, when the gas generation amount is small, the gas will not directly be discharged to the outside through the arc-shaped groove 2201, but will accumulate on the outer wall of the fermentation tank 310, and use the waste heat it carries to play a certain heat preservation role on the outer wall of the fermentation tank 310, which helps to maintain the appropriate temperature required for fermentation. When the gas continues to be generated and gradually increases to a certain amount, the excess gas will be discharged through the arc-shaped groove 2201, thus ensuring the stability of the air pressure inside the device while reasonably utilizing the waste heat of the gas.

[0076] Considering that oxygen needs to be added when the waste material in each partition heat insulation board 320 interval ferments, therefore, multiple ventilation grooves 3103 are formed at the bottom of the fermentation tank 310. These ventilation grooves 3103 are distributed in multiple numbers, and each group of ventilation grooves 3103 corresponds to each interval separated by the partition heat insulation board 320 respectively;

[0077] A plurality of heating devices 330 are fixedly connected to the inner cavity of the fermentation tank 310. Each heating device 330 is distributed corresponding to the interval divided by the partition heat insulation board 320, and can heat each interval separately;

[0078] The inner cavity of the fermentation box 310 is provided with an oxygen control component 400. The oxygen control component 400 is used to control the amount of oxygen passing through the ventilation slots 3103. Multiple groups of ventilation slots 3103 are opened at the bottom of the fermentation box 310, and each group of ventilation slots 3103 corresponds to an interval separated by the partition heat insulation plate 320, providing a basic oxygen supply channel for the fermentation process. Air can naturally enter each fermentation interval through these ventilation slots 3103 to meet the basic oxygen demand of aerobic fermentation of microorganisms. Moreover, the oxygen control component 400 can increase or decrease the ventilation volume of oxygen entering the ventilation slots 3103 simultaneously to maintain the stability of the oxygen content. The heating devices 330 in each interval corresponding to the partition heat insulation plate 320 start to work. These heating devices 330 can provide heat for the intervals they are responsible for, so that each interval can be maintained within the optimal temperature range for microbial fermentation. When the temperature of a certain interval is lower than the set value, the heating device 330 corresponding to this interval will automatically turn on the heating function, and when the temperature reaches the set value, the heating device 330 will stop heating.

[0079] In order to enable the oxygen control component 400 to transmit oxygen to the inner cavity of the ventilation slots 3103, it is necessary to further disclose the parts of the oxygen control component 400. Therefore, the oxygen control component 400 is made to include a support frame 410 fixedly connected to the inner wall of the fermentation box 310, and a plurality of air inlet slots 4101 are opened on the surface of the support frame 410;

[0080] Each air inlet slot 4101 corresponds to each group of ventilation slots 3103. By opening the air inlet slots 4101 on the surface of the support frame 410, oxygen can enter the corresponding interval of the partition heat insulation plate 320 through the ventilation slots 3103, enabling the waste materials inside the interval to have oxygen for chemical reactions.

[0081] In order to enable the oxygen control component 400 to increase or decrease the ventilation volume of oxygen entering the ventilation slots 3103 simultaneously, therefore, a slide rail 4102 is opened inside the support frame 410. A baffle 420 is slidably connected to the inner wall of the slide rail 4102. A handle 430 is fixedly connected to the end of the baffle 420. The shape of the baffle 420 is designed to be adapted to the space of the air inlet slot 4101. When the handle 430 is pulled, the baffle 420 originally blocking the air inlet slot 4101 moves, and the baffle 420 separates from the air inlet slot 4101. The gap of the air inlet slot 4101 originally blocked by the baffle 420 is opened. At this time, air can flow smoothly, enter the bottom of the inner cavity of the fermentation box 310 through this, and then flow into the intervals divided by the partition heat insulation plates 320 through the support columns 3101, realizing the adjustment of the oxygen supply amount in the fermentation box 310.

[0082] In summary, the working process of the present invention:

[0083] As Figure 9The heat insulation protection frame 210 is sleeved on the outer wall of the fermentation box 310. The arrow indication diagram shows the large amount of gas generated during the waste fermentation in the inner cavity of the fermentation box 310 flowing in the gap between the fermentation box 310 and the heat insulation protection frame 210. The working process is as follows: Different wastes are placed in the corresponding partition heat insulation board 320 intervals. At this time, driving the hydraulic device 110 to work can drive the lifting frame 120 to move downward, and at this time, the heat insulation protection frame 210 will move downward accordingly. The notch opened in the heat insulation protection frame 210 will gradually contact the surface of the support column 3101. At this time, the bottom of the heat insulation board 230 will contact the top of the corresponding partition heat insulation board 320, so that the temperature between them can be effectively maintained. And after multiple heat insulation boards 230 and the corresponding partition heat insulation boards 320 are combined, multiple independent intervals are constructed in the fermentation box 310. The heat of each interval is limited in this area, avoiding a large amount of loss to other intervals, so that the temperature of each interval can be stably maintained within the range suitable for microbial fermentation. Pull the handle 430, and the baffle 420 originally blocking the air inlet groove 4101 moves, and the baffle 420 is separated from the air inlet groove 4101. The gap of the air inlet groove 4101 originally blocked by the baffle 420 is opened. At this time, air can flow smoothly, enter the bottom of the inner cavity of the fermentation box 310 through this, and then flow into the intervals divided by each partition heat insulation board 320 through the support column 3101, and start the heating device 330 in the corresponding area to provide heat for heating the waste. When the waste in the inner cavity of the fermentation box 310 ferments, the temperature inside the cavity rises, and a large amount of gas is generated. These gases rise to the top of the heat insulation protection frame 210 when heated. As the gas continues to increase, it gradually fills the gap between the heat insulation protection frame 210 and the surface of the fermentation box 310, as shown in Figure 9 , since the fixed frame 220 is installed at the bottom of the heat insulation protection frame 210 and is at a relatively low position of the fermentation box 310, when the gas generation amount is small, the gas will not directly be discharged to the outside through the arc-shaped groove 2201, but will gather on the outer wall of the fermentation box 310, and use the waste heat it carries to play a certain heat preservation role for the outer wall of the fermentation box 310, which helps to maintain the appropriate temperature required for fermentation.

[0084] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a bio-organic fertilizer, characterized in that: The following steps are involved: S1. Put the organic waste that has been crushed and mixed with microorganisms into the partitioned fermentation component in the inner cavity of the protective support body and wait for fermentation; S2, the protective waste heat recovery component is moved downward to contact the top of the partitioned fermentation component, so that the protective waste heat recovery component is covered on the surface of the partitioned fermentation component to prevent external air from entering the inner cavity of the partitioned fermentation component; S3. The protective waste heat recovery component is placed on the surface of the partitioned fermentation component to extend the time for the inner cavity of the partitioned fermentation component to maintain a suitable fermentation temperature, wherein: A support column is arranged on the top of the partitioned fermentation component, and a notch is opened on the top of the inner cavity of the protective waste heat recovery component, and the inner wall of the notch is sleeved with the surface of the support column. The protective waste heat recovery component is in a non-contact state with the outer surface of the partitioned fermentation component, and forms a jacketed structure. A gap space is formed inside the jacketed structure to accommodate the heat generated by the partitioned fermentation component during the fermentation process, and will continuously perform heat exchange on the outer surface of the partitioned fermentation component, and the inner cavity of the partitioned fermentation component is provided with a plurality of partitioned heat insulation boards, which divide the interior of the partitioned fermentation component into a plurality of independent cavities to form separate fermentation intervals.

2. The preparation method of bio-organic fertilizer according to claim 1, wherein: The partitioned fermentation assembly includes a fermentation box fixedly connected to the inner cavity of the protective support body, the four corners of the top of the fermentation box are respectively fixedly connected to support columns, and the surface of the fermentation box is provided with a fixing groove; The surface of the fixing groove is in contact with the bottom of the protective waste heat recovery component.

3. The preparation method of bio-organic fertilizer according to claim 2, wherein: The top of the protection bracket body is fixedly connected with a hydraulic device, the output end of the hydraulic device is fixedly connected with a lifting frame, and the bottom of the lifting frame is fixedly connected to the top of the protection waste heat recovery component.

4. The preparation method of bio-organic fertilizer according to claim 3, wherein: The inner cavity of the lifting frame is provided with a gear rack set, the gear rack set is composed of a plurality of gears, the bottom of each gear is fixedly connected with a spiral stirring rod, the surface of the spiral stirring rod extends out of the bottom of the lifting frame, and the surface is located in the inner cavity of the protective waste heat recovery component; The protective waste heat recovery component is disposed around the outer wall of the fermentation box, and when the protective waste heat recovery component and the fermentation box are in an assembled state, the surface of the spiral stirring rod is located in the inner cavity of the fermentation box; The inner cavity of the fermentation box is provided with a plurality of partition insulation plates, and a spiral stirring rod is correspondingly arranged in each independent cavity.

5. The preparation method of bio-organic fertilizer according to claim 4, characterized in that: The protective waste heat recovery component includes a heat-insulating protective frame fixedly connected to the bottom of the lifting frame, a stirring tank adapted to the rotation of the spiral stirring rod is opened on the top of the heat-insulating protective frame, a fixed frame is fixedly connected to the bottom of the inner cavity of the heat-insulating protective frame, and a plurality of heat-insulating plates are fixedly connected to the top of the inner cavity of the heat-insulating protective frame; The bottom of the heat insulation board contacts the top of the partition heat insulation board to form a separate cavity; The heat insulation board and the partition heat insulation board both use metal material as the base plate, and the surface of the base plate is covered with rock wool for heat insulation.

6. The preparation method of bio-organic fertilizer according to claim 5, characterized in that: The bottom of the heat insulation protection frame is fixedly connected with a fixing frame, the bottom of the fixing frame contacts the surface of the fixing groove, and the top of the fixing frame is provided with an arc groove.

7. The preparation method of bio-organic fertilizer according to claim 1, wherein: The bottom of the fermentation box is provided with a plurality of ventilation slots, which are distributed in a plurality of groups, and each group of ventilation slots corresponds to each zone separated by the partition insulation board; The inner cavity of the fermentation box is fixedly connected with a plurality of heating devices, each heating device is distributed in a corresponding section divided by the partition insulation board, and can heat each section separately; The inner cavity of the fermentation box is provided with an oxygen control component.

8. The preparation method of bio-organic fertilizer according to claim 7, characterized in that: The oxygen control assembly includes a support frame fixedly connected to the inner wall of the fermentation box, and a plurality of air inlet slots are provided on the surface of the support frame; Each air inlet slot corresponds to each group of ventilation slots.

9. The preparation method of bio-organic fertilizer according to claim 7, characterized in that: A slide rail is provided inside the support frame, a baffle is slidably connected to the inner wall of the slide rail, and a handle is fixedly connected to the end of the baffle.

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