Multifunctional conveying system for groove type aerobic fermentation production of carbon-based fertilizer

Abstract

The utility model relates to the technical field of groove type aerobic composting, in particular to a multifunctional conveying system for groove type aerobic fermentation production of carbon-based fertilizer, which comprises a feeding system, a distributing system and a discharging system, the feeding system comprises a material distribution belt conveyor; the material distributing system comprises a conveyor, a material falling trolley and a material distributing machine, the material distributing belt conveyor is arranged at the front end of the conveyor, the conveyor is fixed between the two fermentation tanks, the material falling trolley is installed on the fermentation tanks in a sliding mode, the material falling trolley and the conveyor share one belt, and the material distributing machine stretches across the multiple fermentation tanks; the discharging system comprises a turning and throwing machine and a discharging belt conveyor, the turning and throwing machine is mounted in the fermentation tank and can throw materials to the material distributing machine, and the discharging belt conveyor is arranged at the tail end of the conveyor. According to the utility model, the problems of non-uniform material distribution, large workload, long time, low mechanical utilization rate and the like of a forklift in the existing groove type aerobic composting production process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of trough aerobic composting, in particular to a multi-functional conveying system for producing biochar-based fertilizers by trough aerobic fermentation. Background Art

[0002] Biochar has the advantages of developed pores, large specific surface area, rich oxygen-containing functional groups, promoting electron transfer between microorganisms, nitrogen fixation and emission reduction, and improving soil. It can provide habitats for composting microorganisms, improve the microbial community structure and diversity, and then promote the composting process and improve the quality of compost products. Agricultural waste organic matter can be used as a biochar raw material. Therefore, biochar with low raw material cost as an additive for co-fermentation with agricultural organic waste to prepare biochar organic fertilizer is beneficial to the improvement of compost performance and product quality, and is beneficial to the resource utilization of agricultural waste organic matter. At present, trough aerobic composting is one of the main methods for producing organic fertilizer by resource utilization of agricultural waste in China. Compared with composting technologies such as windrow composting and fermentation tank composting, it has the advantages of high production efficiency and easy large-scale factory production.

[0003] In trough aerobic composting, a forklift is generally used for feeding, spreading, and discharging materials, resulting in low equipment utilization rate and production efficiency, and continuous production cannot be achieved. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the embodiment of the present utility model is to provide a multi-functional conveying system for producing biochar-based fertilizers by trough aerobic fermentation, which can integrate functions such as feeding, spreading, and discharging in the production process of trough aerobic composting, realize multi-purpose in one machine, and overcome the problems of uneven spreading by forklift, large workload, long time, and low mechanical utilization rate in the existing trough aerobic composting production process.

[0005] In order to achieve the above purpose, the embodiment of the present utility model provides the following technical solutions:

[0006] A multi-functional conveying system for producing biochar-based fertilizers by trough aerobic fermentation, comprising: a feeding system, a spreading system, and a discharging system; the feeding system includes a distributing belt conveyor; the spreading system includes a conveyor, a blanking vehicle, and a spreader. The distributing belt conveyor is arranged at the front end of the conveyor. The conveyor is fixed between two fermentation troughs. The blanking vehicle is slidably installed on the fermentation trough and can move along the length direction of the fermentation trough. The blanking vehicle shares a belt with the conveyor. The spreader straddles multiple fermentation troughs and can move along the length direction of the fermentation trough. The discharging system includes a turning machine and a discharging belt conveyor. The turning machine is installed in the fermentation trough and can throw materials to the spreader. The discharging belt conveyor is arranged at the tail end of the conveyor.

[0007] Optionally, the conveyor includes a frame, legs are provided at the bottom of the frame, the legs are fixedly installed in the middle of the walls of two adjacent fermentation tanks, a discharge hopper is provided at the end of the frame, and the discharge belt conveyor is provided at the bottom side of the discharge hopper.

[0008] Optionally, one end of the conveyor frame is provided with a driving roller, the other end of the frame is provided with a redirecting roller, lower supporting rollers are provided on the lower side of the frame, upper supporting rollers are provided on the upper side of the frame, and the belt sequentially passes through the driving roller, the lower supporting rollers, the redirecting roller, the upper supporting rollers, the blanking vehicle, the upper supporting rollers and then to the driving roller to form a closed loop.

[0009] Optionally, the upper supporting roller is an adjustable centering supporting roller, the adjustable centering supporting roller includes a horizontal supporting roller and inclined supporting rollers, the inclined supporting rollers are located on both sides of the horizontal supporting roller, the inclined supporting rollers are arranged obliquely, and the end of the inclined supporting roller close to the horizontal supporting roller is the lower end, and the end far from the horizontal supporting roller is the upper end.

[0010] Optionally, deviation limiters are further installed on the frame of the conveyor, and the deviation limiters are arranged on both sides of the upper supporting roller for detecting the position of the belt.

[0011] Optionally, the conveyor further includes an automatic tensioning device, the automatic tensioning device includes a sliding frame and a tensioning wheel, the sliding frame is slidably installed on the legs of the frame and can freely lift, the tensioning wheel is installed on the sliding frame, and the belt passes through the bottom of the tensioning wheel.

[0012] Optionally, the blanking vehicle has a traveling chassis, the traveling chassis is installed on the steel rails on the tops of the adjacent walls of two fermentation tanks, the end of the traveling chassis protrudes backward to form a protruding frame, and there is a set distance between the protruding frame and the conveyor frame and it is located above the cloth distributor.

[0013] Optionally, the distributing belt conveyor includes a steering device and a distributor, the distributor is installed on the steering device, the steering device drives the distributor to rotate, and the end of the distributor is connected to the head end of the conveyor.

[0014] Optionally, the cloth distributor is a two-way cloth distributor, including a cloth bottom frame and an upper belt conveyor, the cloth bottom frame straddles multiple fermentation tanks and can reciprocate along the length direction of the fermentation tanks, and the upper belt conveyor is slidably installed on the cloth bottom frame and can reciprocate along the direction perpendicular to the length direction of the fermentation tanks.

[0015] Optionally, the conveying system further includes a tank-changing vehicle, the tank-changing vehicle is arranged at the end of the fermentation tank and is used to replace the turning machine to different fermentation tanks.

[0016] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0017] This conveying system is designed for multi-tank fermentation. The feeding belt conveyor cooperates with the conveyor for feeding. The conveyor cooperates with the blanking vehicle to provide the blanking function at any position in the length direction of the fermentation tank. The cloth distributor cooperates with the blanking vehicle to provide the cloth distribution function perpendicular to the length direction (i.e., the width direction) of the fermentation tank. The turning and throwing machine and the cloth distributor cooperate with the conveyor and the discharge belt conveyor to realize the discharging function. Through the cooperation of each component, the continuous feeding, cloth distribution, and discharging functions of multiple fermentation tanks are realized, greatly improving the production efficiency, achieving continuous raw material supply, cloth distribution, and discharging at any position in the length direction of multiple fermentation tanks, shortening the existing material transfer time, reducing the compost production cycle, improving the equipment utilization rate and production efficiency, and reducing the production cost of biochar organic fertilizer. At the same time, it provides an efficient and feasible conveying mechanical equipment for the large-scale and factory utilization of agricultural waste biomass resources.

[0018] Advantages of additional aspects of the present utility model will be given in the following description, some of which will become obvious from the following description, or can be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The schematic diagrams in the specification forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0020] Figure 1 is a top view of the conveying system provided by an embodiment of the present utility model;

[0021] Figure 2 is a front view of the conveying system provided by an embodiment of the present utility model;

[0022] Figure 3 is a schematic diagram of the upper centering idler provided by an embodiment of the present utility model;

[0023] In the figure: 1, blanking vehicle; 1.1, walking chassis; 1.2, power system; 2, conveyor; 2.1, driving roller; 2.2, redirecting roller; 2.3, automatic tensioning device; 2.4, discharge hopper; 2.5, support leg; 2.6, lower idler; 2.7, deviation limit device; 2.8, upper centering idler; 3, belt; 4, two-way cloth distributor; 4.1, upper belt conveyor; 4.2, cloth distribution chassis; 5, turning and throwing machine; 6, discharge belt conveyor; 7.1, first fermentation tank; 7.2, second fermentation tank; 7.3, third fermentation tank; 7.4, fourth fermentation tank; 8, feeding belt conveyor; 8.1, steering device; 8.2, feeder; 9, tank-changing vehicle;

[0024] The distances or dimensions between each part are exaggerated for showing the positions of each part, and the schematic diagrams are only for illustration. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] It should be noted that the following detailed description is illustrative and aims to provide further explanation of the present utility model. Unless otherwise specified, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] As introduced in the background art, the traditional forklift operation cannot achieve continuous production, resulting in low equipment utilization rate. For the existing mechanized feeding, cloth-feeding and discharging systems, the conveying process is complex and there are many equipments, occupying a large space and having high production costs. Therefore, there is an urgent need to develop a multi-functional lightweight conveying mechanical equipment in the process of tank-type aerobic composting, which integrates functions such as feeding, cloth-feeding and discharging, so as to reduce production costs.

[0027] As Figure 1 , Figure 2 shown, the multi-functional conveying system for tank-type aerobic fermentation to produce biochar-based fertilizer includes a feeding system, a cloth-feeding system and a discharging system; the feeding system includes a distributing belt conveyor 8; the cloth-feeding system includes a conveyor 2, a blanking truck 1 and a cloth-feeding machine. The distributing belt conveyor 8 is arranged at the front end of the conveyor 2. The conveyor 2 is fixed between two fermentation tanks (the first fermentation tank 7.1 and the second fermentation tank 7.2). The blanking truck 1 is slidably installed on the fermentation tank and can move along the length direction of the fermentation tank. The blanking truck 1 shares a belt 3 with the conveyor 2. The cloth-feeding machine straddles multiple fermentation tanks and can move along the length direction of the fermentation tank; the discharging system includes a turning machine 5 and a discharging belt conveyor 6. The turning machine 5 is installed in the fermentation tank and can throw materials to the cloth-feeding machine. The discharging belt conveyor 6 is arranged at the tail end of the conveyor 2.

[0028] This conveying system is designed for multi-tank fermentation. The feeding belt conveyor 8 and the conveyor 2 are used for feeding. The conveyor 2 and the blanking truck 1 cooperate to provide the blanking function at any position in the length direction of the fermentation tank. The distributing machine and the blanking truck 1 cooperate to provide the distributing function perpendicular to the length direction (i.e., the width direction) of the fermentation tank. The turning and throwing machine 5, the distributing machine and the conveyor 2 and the discharging belt conveyor 6 realize the discharging function. It integrates three key functions of feeding, distributing and discharging, forming a complete set of automated production process. The feeding system realizes the preliminary distribution and feeding of raw materials through the feeding belt conveyor 8. The feeding belt conveyor 8 is arranged at the front end of the conveyor 2, ensuring that the materials can smoothly enter the distributing stage. The distributing system realizes the uniform distribution of materials in the fermentation tank through the coordinated operation of the conveyor 2, the blanking truck 1 and the distributing machine. The ability of the blanking truck 1 to move along the length direction of the fermentation tank, combined with the design of the distributing machine spanning multiple fermentation tanks, makes the whole distributing process more flexible and efficient. The discharging system collects and outputs the fermented materials efficiently through the turning and throwing machine 5, the distributing machine and the discharging belt conveyor 6.

[0029] As Figure 1 , Figure 2 shown, the feeding belt conveyor 8 is of an existing structure, including a steering device 8.1 and a distributor 8.2. The distributor 8.2 is installed on the steering device 8.1. The steering device 8.1 drives the distributor 8.2 to rotate. The end of the distributor 8.2 is connected to the head end of the conveyor 2. Under the action of the steering device 8.1, the distributor 8.2 can be turned (cooperating with other material conveying belt conveyors) to connect different conveyors 2, enabling continuous feeding of more fermentation tanks. This design not only improves the adaptability of the system but also ensures the uniformity and accuracy of material distribution. The connection between the end of the distributor 8.2 and the head end of the conveyor 2 ensures that the materials can smoothly enter the conveyor 2, laying a good foundation for the subsequent distributing and fermentation processes.

[0030] The conveyor 2 includes a frame. Legs 2.5 for supporting the conveyor 2 are arranged at the bottom of the frame. The legs 2.5 are fixedly installed in the middle of the walls of two adjacent fermentation tanks. The legs 2.5 at the bottom of the frame being fixedly installed in the middle of two adjacent fermentation tanks provide stable support for the conveyor 2. A discharge hopper 2.4 is arranged at the end of the frame. The discharging belt conveyor 6 is placed at the lower end of the discharge hopper 2.4 of the conveyor 2 to continuously transport the materials transported by the conveyor 2. The discharge hopper 2.4 is arranged at the end of the frame, cooperating with the arrangement of the discharging belt conveyor 6, realizing seamless docking of materials from the fermentation tank to the discharging end. This design not only improves the efficiency of material transfer but also reduces material loss during transfer.

[0031] One end of the frame of the conveyor 2 is provided with a driving roller 2.1, the other end of the frame is provided with a redirecting roller 2.2, the lower side of the frame is provided with lower supporting rollers 2.6, and the upper side of the frame is provided with upper supporting rollers. The belt 3 sequentially passes through the driving roller 2.1, the lower supporting rollers 2.6, the redirecting roller 2.2, the upper supporting rollers, the blanking truck 1, the upper supporting rollers and then back to the driving roller 2.1 to form a closed loop. The belt 3 forms a closed loop under the guidance of these rollers, ensuring the continuity and stability of material transportation. The rotation of the driving roller 2.1 drives the movement of the belt 3, while the redirecting roller 2.2 is responsible for changing the running direction of the belt 3. The lower supporting rollers 2.6 and the upper supporting rollers provide necessary support to prevent the belt 3 from deviating during operation. The belt 3 is a closed annular belt connected in series to the conveyor 2, the blanking truck 1, and the automatic tensioning device 2.3 (specifically introduced below). Using a multi-functional belt 3 to cooperate realizes the continuous conveying functions of feeding, distributing, and discharging, reduces the equipment procurement and production costs, and improves the mechanization level and production efficiency of in-vessel aerobic composting.

[0032] As Figure 3 shown, the upper supporting roller is an adjustable centering roller 2.8. The adjustable centering roller 2.8 includes a horizontal roller and inclined rollers. The inclined rollers are located on both sides of the horizontal roller, and the inclined rollers are arranged obliquely. The end of the inclined roller close to the horizontal roller is the lower end, and the end far from the horizontal roller is the upper end. The combined use of the horizontal roller and the inclined rollers not only provides stable support but also realizes the automatic centering function of the belt 3 through the oblique arrangement of the inclined rollers, ensuring that the belt 3 is in the middle position of the conveyor 2. This design effectively prevents the belt 3 from running off track during high-speed operation, improves the stability and reliability of the conveying system, and further optimizes the operating performance of the conveyor 2.

[0033] The frame of the conveyor 2 is also installed with a deviation limit device 2.7, and the deviation limit device 2.7 is arranged on both sides of the upper supporting roller. The deviation limit device 2.7 can be an optoelectronic sensor for detecting the deviation value of the belt 3. When the value exceeds the limit, it can force the driving roller 2.1 and the power system 1.2 to cut off the power supply and stop at the same time to ensure the safety of the conveying equipment. The deviation limit device 2.7 arranged on both sides of the upper supporting roller provides additional safety protection for the conveyor 2. By detecting the position of the belt 3, the deviation limit device 2.7 can react in time when the belt 3 deviates, ensuring the safe and stable operation of the conveyor 2.

[0034] Since the conveyor and the blanking truck 1 share a single belt 3, the belt 3 often becomes loose, and the efficiency of adjusting the tightness of the belt 3 is low, reducing the production efficiency. Based on this, the conveyor 2 in this embodiment further includes an automatic tensioning device 2.3, which includes a carriage and a tensioning wheel. The carriage is slidably mounted on the leg 2.5 of the frame and can freely move up and down. The tensioning wheel is mounted on the carriage, and the belt 3 passes through the bottom of the tensioning wheel. The carriage (cooperating with a counterweight) and the tensioning wheel provide a tensioning force for the belt 3 under the action of gravity, so that the tension of the belt 3 can be automatically adjusted during the production process, always maintaining a certain tightness of the belt 3 to meet the requirements under different working conditions, greatly improving the production efficiency. The design of the automatic tensioning device 2.3 further improves the operating efficiency and stability of the conveyor 2.

[0035] The blanking truck 1 has a walking chassis 1.1, which is mounted on the rails at the top of the adjacent walls of two fermentation tanks (the first fermentation tank 7.1 and the second fermentation tank 7.2). The end of the walking chassis 1.1 protrudes backward to form a protruding frame, and there is a set distance between the protruding frame and the frame of the conveyor 2, and it is located above the cloth feeder. The walking chassis 1.1 is arranged on the rails at the top of the adjacent walls of the fermentation tank, providing a stable operating platform. The design of the protruding frame provides the necessary space for the cloth feeder, ensuring the smooth progress of the cloth feeding process. The blanking truck 1 also has a power system 1.2, which provides power for the walking chassis 1.1. The walking chassis 1.1 can reciprocate on the rails to achieve blanking at any position in the length direction of the fermentation tank.

[0036] The cloth feeder is a two-way cloth feeder 4, which includes a cloth feeding chassis 4.2 and an upper belt conveyor 4.1. The cloth feeding chassis 4.2 straddles multiple fermentation tanks (the first fermentation tank 7.1, the second fermentation tank 7.2, the third fermentation tank 7.3, and the fourth fermentation tank 7.4) and can reciprocate along the length direction of the fermentation tank. The upper belt conveyor 4.1 is slidably mounted on the cloth feeding chassis 4.2 and can reciprocate along the direction perpendicular to the length direction of the fermentation tank.

[0037] As Figure 1 shown, the cloth feeding chassis 4.2 is mounted on the rails of the walls of the third fermentation tank 7.3 and the fourth fermentation tank 7.4 and can reciprocate along the rails. The upper belt conveyor 4.1 can reciprocate within the chassis to achieve two-way blanking, thereby realizing continuous cloth feeding in the width direction of the two-side fermentation tanks. When the blanking truck 1 is used in conjunction with the two-way cloth feeder 4, continuous cloth feeding in the entire fermentation tank can be achieved. This design greatly improves the cloth feeding efficiency and creates good conditions for the subsequent fermentation process.

[0038] The turning machine 5 is a chain plate type turning machine 5, which can reciprocate along the steel rail on the wall of a single fermentation tank, can realize the turning of the fermented materials, and can also turn and transport the fermented organic fertilizer materials to the two-way distributor 4.

[0039] As Figure 1 shown, the conveying system further includes a tank-changing vehicle 9. The tank-changing vehicle 9 is arranged at the end of the fermentation tank. The turning machine 5 can move from the steel rail of the fermentation tank to the tank-changing vehicle 9 to realize the tank-changing operation of the turning machine 5 and improve the equipment utilization rate of the turning machine 5. The design of the tank-changing vehicle 9 provides a flexible operation platform for the turning machine 5. The tank-changing vehicle 9 arranged at the end of the fermentation tank enables the turning machine 5 to quickly switch between different fermentation tanks, improving the equipment utilization rate and operation efficiency.

[0040] The continuous feeding, distribution of compost raw materials and continuous discharging process of compost products:

[0041] I. The method of continuous feeding and distribution of compost raw materials.

[0042] Continuous feeding method: When producing biochar organic fertilizer by tank type aerobic composting, the agricultural organic waste raw materials mixed with biochar enter the distributing belt conveyor 8. Driven by the turning device 8.1, the distributor 8.2 can be connected to different conveyors 2 to realize the continuous feeding of compost raw materials.

[0043] Continuous distribution method: During continuous distribution, the blanking vehicle 1 and the two-way distributor 4 are coordinated and linked. The raw materials continuously coming in from the right end of the conveyor 2 are discharged from a high position at the left end of the blanking vehicle 1 and transferred to the upper belt 3 of the two-way distributor 4. The upper belt 3 reciprocates and rotates forward and backward on the chassis to realize the uniform distribution of the lateral position in adjacent fermentation tanks. Under the action of the power system 1.2 and the walking chassis 1.1, the blanking vehicle 1 gradually moves from the right end to the left end of the fermentation tank. The two-way distributor 4 has its own power system and is linked with the blanking vehicle 1 during continuous distribution, so that it can continuously distribute materials to any position in the fermentation tank.

[0044] II. The method of continuous discharging of compost products.

[0045] During continuous discharging, the two-way distributor 4 and the blanking vehicle 1 are disengaged from the linkage mode, and the blanking vehicle 1 returns to the position at the right end of the fermentation tank. After the tank type aerobic composting process is completed and the compost products need to be discharged from the tank, the two-way distributor 4 and the turning machine 5 are linked. The turning machine 5 is used to transport the materials in a single fermentation tank to the upper belt conveyor 4.1 of the two-way distributor 4. The materials on the upper belt conveyor 4.1 are transferred to the belt 3. Driven by the power roller 2.1, the conveyor 2 keeps running, and the materials on the belt 3 are transferred to the discharging belt conveyor 6 to realize the continuous discharging and transfer of the biochar organic fertilizer. Through the transfer of the tank-changing vehicle 9, the turning machine 5 can continuously operate in different fermentation tanks, so as to realize the continuous discharging of materials in multiple fermentation tanks.

[0046] Although the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, it is not a limitation on the protection scope of the present invention. Those skilled in the art should understand that, based on the technical solution of the present invention, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present invention.

Claims

1. A multifunctional conveying system for producing carbon-based fertilizer by trough-type aerobic fermentation, characterized in that: include: Feeding system, material distribution system and discharging system; The feeding system comprises a material dividing belt conveyor; The material distribution system includes a conveyor, a material discharging vehicle and a material distributing machine, wherein the material distributing belt conveyor is arranged at the front end of the conveyor, the conveyor is fixed between two fermentation tanks, the material discharging vehicle is slidably mounted on the fermentation tank and can move along the length direction of the fermentation tank, the material discharging vehicle and the conveyor share a belt, and the material distributing machine spans over a plurality of fermentation tanks and can move along the length direction of the fermentation tank; The discharging system comprises a turning machine and a discharging belt conveyor. The turning machine is installed in the fermentation tank and can throw materials to the material distributor. The discharging belt conveyor is arranged at the tail end of the conveyor.

2. The multifunctional conveying system for producing carbon-based fertilizer by trough-type aerobic fermentation as claimed in claim 1, characterized in that: The conveyor comprises a frame, a support leg is arranged at the bottom of the frame, the support leg is fixedly installed in the middle of two adjacent fermentation tank walls, a discharge hopper is arranged at the end of the frame, and the discharge belt conveyor is arranged at the bottom side of the discharge hopper.

3. The multifunctional conveying system for producing carbon-based fertilizer by trough-type aerobic fermentation as claimed in claim 2, characterized in that: A power roller is arranged at one end of the conveyor frame, a redirecting roller is arranged at the other end of the frame, a lower roller is arranged at the lower side of the frame, and an upper roller is arranged at the upper side of the frame. The belt passes through the power roller, the lower roller, the redirecting roller, the upper roller, the blanking car, the upper roller and then to the power roller in sequence to form a closed loop.

4. The multifunctional conveying system for producing carbon-based fertilizer by trough-type aerobic fermentation as claimed in claim 3, characterized in that: The upper roller is an upper centering roller, which includes a horizontal roller and an inclined roller. The inclined rollers are located on both sides of the horizontal roller. The inclined rollers are arranged tilted, and the end of the inclined roller close to the horizontal roller is the low end, and the end away from the horizontal roller is the high end.

5. The multifunctional conveying system for producing carbon-based fertilizer by trough-type aerobic fermentation as claimed in claim 3, characterized in that: A deviation limiter is also installed on the frame of the conveyor. The deviation limiter is arranged on both sides of the upper roller and is used to detect the belt position.

6. The multifunctional conveying system for producing carbon-based fertilizer by trough-type aerobic fermentation as claimed in claim 2, characterized in that: The conveyor also includes an automatic tensioning device, which includes a slide and a tensioning wheel. The slide is slidably mounted on the legs of the frame and can be freely raised and lowered. The tensioning wheel is mounted on the slide, and the belt passes through the bottom of the tensioning wheel.

7. The multifunctional conveying system for producing carbon-based fertilizer by trough-type aerobic fermentation as claimed in claim 2, characterized in that: The material unloading vehicle has a walking frame, which is installed on the steel rails on the top of the adjacent walls of two fermentation tanks. The end of the walking frame protrudes backward to form a protruding frame. There is a set distance between the protruding frame and the conveyor frame, and it is located on the upper side of the material placing machine.

8. The multifunctional conveying system for producing carbon-based fertilizer by trough-type aerobic fermentation as claimed in claim 1, characterized in that: The material dividing belt conveyor comprises a steering device and a material divider, wherein the material divider is mounted on the steering device, the steering device drives the material divider to rotate, and the end of the material divider is connected to the head end of the conveyor.

9. The multifunctional conveying system for producing carbon-based fertilizer by trough-type aerobic fermentation as claimed in claim 1, characterized in that: The material distribution machine is a bidirectional material distribution machine, including a material distribution frame and an upper belt conveyor. The material distribution frame spans across multiple fermentation tanks and can reciprocate along the length direction of the fermentation tanks. The upper belt conveyor is slidably installed on the material distribution frame and can reciprocate in a direction perpendicular to the length direction of the fermentation tanks.

10. The multifunctional conveying system for producing carbon-based fertilizer by trough-type aerobic fermentation as claimed in claim 1, characterized in that: The conveying system also includes a tank changing vehicle, which is arranged at the end of the fermentation tank and is used to replace the turner to a different fermentation tank.

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