Pipe chain type circulating mixing equipment and use method thereof

Abstract

The invention discloses pipe chain type circulating mixing equipment and a use method thereof, and relates to the field of composting lors.According to the technical scheme, the pipe chain type circulating mixing equipment comprises a composting lorsand a pipe chain conveying device; a feeding hole is formed in the upper part of the composting box, and a discharging hole with a valve is formed in the lower part of the composting box; the feeding end of the pipe chain conveying device is in butt joint with the discharging port, the discharging end of the pipe chain conveying device is in butt joint with the feeding port, and the pipe chain conveying device conveys materials to the feeding port from the discharging port. The material falls down from the discharge port of the composting box and then enters the composting box again through the associated conveying device, so that the material is turned over, the material turning process is very simple, and the material can be turned over stably for a long time.

Description

Technical Field

[0001] This invention relates to the field of composting bins, and in particular to a tubular chain circulating mixing device and its method of use. Background Technology

[0002] For the treatment of organic waste (such as kitchen waste, agricultural straw, and urban sludge), composting is commonly used. Traditional composting relies on manual turning of the pile to improve fermentation and aeration. However, for composting large quantities of organic waste, manual or semi-manual turning of the pile will result in a huge workload, low turning efficiency, and affect composting efficiency. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a tubular chain circulating mixing device and its usage method. The material falls from the discharge port of the compost bin and is then reintroduced into the compost bin through a related conveying device, thereby realizing the turning of the material. The turning process is very simple and can turn the material stably for a long time.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a tubular chain circulating mixing equipment, including a compost bin and a tubular chain conveying device;

[0005] The composting bin has a feed inlet at the top and a discharge outlet with a valve at the bottom.

[0006] The feeding end of the tubular chain conveyor is connected to the discharge port, and the unloading end of the tubular chain conveyor is connected to the inlet port. The tubular chain conveyor transports the material from the discharge port to the inlet port.

[0007] The material is first added into the compost bin through the inlet, and then the material bin moves downward to the outlet. It is then conveyed upward to the inlet via a tubular chain conveyor, and the material re-enters the compost bin. This process of turning the material is very simple and can be carried out slowly over a long period of time.

[0008] Preferably, the tubular chain conveying device includes a chain rope, chain segments, a driving sprocket, a driven sprocket, a feeding pipe, and a circulation pipe;

[0009] The chain has a ring structure, and several chain plates are evenly distributed on the chain. The chain passes through the middle of the chain plates.

[0010] The driving sprocket is located at the top of the compost bin, and the driven sprocket is located at the bottom of the compost bin. The driving sprocket and the driven sprocket are surrounded by grooves, and the driving sprocket and the driven sprocket are radially distributed with plate grooves.

[0011] The feeding pipe and the circulation pipe extend from both sides of the driving sprocket through the outside of the compost bin to both sides of the driven sprocket, respectively.

[0012] The chain rope is wound around and cooperates with the driving sprocket and the driven sprocket respectively. The chain rope between the driving sprocket and the driven sprocket passes through the feeding pipe and the circulation pipe. The chain piece is adapted to the chain piece, and the outer edge of the chain piece cooperates with the feeding pipe and the circulation pipe.

[0013] The lower end sidewall of the feeding pipe is provided with a feeding port that communicates with the discharge port, and the upper end sidewall of the feeding pipe is provided with a discharging port that connects with the inlet.

[0014] The drive sprocket and driven sprocket work together to drive the chain and chain links in a cyclical rotation. Since the chain and chain links pass through the feed pipe and circulation pipe, the feed pipe guides the chain and chain links, facilitating their rotation from the bottom to the top of the compost bin. Simultaneously, the chain links push the material inside the feed pipe. The material first enters the feed pipe through the feed inlet, then is propelled upwards by the chain links, and is discharged when it reaches the discharge outlet. After passing the drive sprocket, the chain and chain links travel through the circulation pipe to the driven sprocket for the next cycle.

[0015] Preferably, the motor drives the drive sprocket via a speed reducer. This facilitates speed reduction, providing greater torque and more stable drive of the chain links within the feed tube.

[0016] Preferably, the system further includes a fermentation liquid chamber connected to the lower end of the feeding pipe, the fermentation liquid chamber containing fermentation liquid. This facilitates the addition of fermentation liquid to the material, allowing for more even addition of the fermentation liquid while turning the material.

[0017] Preferably, a spray pump is installed inside the fermentation liquid tank, and a nozzle is installed inside the feeding pipe. The spray pump is connected to the nozzle via a pipeline, so as to evenly spray the fermentation liquid onto the inner wall of the feeding pipe.

[0018] Preferably, the fermentation liquid chamber is located upstream of the feed inlet. There is no material upstream of the feed inlet, allowing the fermentation liquid to be sprayed more evenly onto the inner wall of the feed pipe, so that the chain conveyor can push it to the feed inlet to mix with the material.

[0019] Preferably, the discharge port is connected to the feeding pipe via a discharge bin, facilitating the connection between the two.

[0020] Preferably, the side wall of the discharge hopper is provided with a transparent observation window to facilitate observation of the material falling inside.

[0021] Preferably, the side wall of the discharge hopper is provided with an inspection window to facilitate internal maintenance.

[0022] A method for using a tubular chain circulating mixing device, the method comprising the following steps:

[0023] The entire composting process is divided into three stages: a pre-composting degradation stage (2 days), a secondary maturation and oxidation stage (4 days), and a tertiary complete maturation and aging stage (2 days). Combined with cyclic turning, the standard composting cycle is 8 days, and the compost product's maturity can reach over 85%. Material mixing and turning are achieved through a pipe chain system, which rapidly cools and heats the compost pile for uniform decomposition, stabilizing it at a high temperature range of 65-85℃ for 2-3 days. The complete post-composting stage involves further cyclic mixing and fermentation for 1-2 days, allowing the temperature to naturally decrease and stabilize at ambient temperature, marking the completion of composting. Specific steps are as follows:

[0024] Step 1: Raw material pretreatment: Crush organic waste into 2-5cm pieces and mix it with nitrogen-containing raw materials to adjust the carbon-nitrogen ratio;

[0025] Step 2: Initial feeding and inoculation: The pretreated nitrogen-containing raw materials are fed into the chamber through the inlet; then, 1‰~3‰ of the dry weight of the raw materials is dissolved in an appropriate amount of water and added to the fermentation liquid chamber. The fermentation liquid is then evenly sprayed onto the fermentation raw materials through a spray pump during the circulation process; the equipment is started to ensure that the raw materials, water and inoculants are fully and evenly mixed; after completion, the outlet valve is closed to put the system into the "circulating fermentation" mode.

[0026] Step 3: The first pre-decomposition and secondary composting oxidation stage. Fermentation parameters are set: target temperature range 55~85℃, humidity range 55%~60%. The motor is started, driving the chain and chain plates through a reducer, causing the material to continuously circulate within the closed pipe, completing three cycles of material mixing. Then, the first pre-decomposition stage begins. After 2 days, the pile is turned over again, entering the secondary composting oxidation stage. During this period, the aeration rate is adjusted to maintain the pile temperature at 55~85℃. When the temperature reaches 90℃, cooling is achieved by increasing aeration and turning the pile. The secondary composting oxidation takes 4 days.

[0027] Step 4: Three complete maturation and aging stages, after the second maturation and oxidation is completed; no additional heating or stirring is required in this stage. Maintain a small amount of ventilation. When the temperature at the center of the pile tends to stabilize, and after standing for two days, the maturation is complete.

[0028] The beneficial effects of this invention are:

[0029] In this solution, the material falls from the outlet of the compost bin and is then re-entered into the compost bin via a connected conveyor, thereby achieving material turning. The turning process is very simple and can be carried out stably for a long time. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only five of the drawings in this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a top perspective view of an embodiment of the present invention;

[0032] Figure 2 This is a bottom-view perspective view of an embodiment of the present invention;

[0033] Figure 3 This is a front view of an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the drive sprocket, chain rope, and chain link according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the fermentation liquid tank and the feeding pipe according to an embodiment of the present invention;

[0036] The components include: 1. compost bin; 2. feed inlet; 3. discharge outlet; 4. chain rope; 5. chain link; 6. drive sprocket; 7. driven sprocket; 8. feeding pipe; 9. feeding port; 10. discharging port; 11. circulation pipe; 12. fermentation liquid tank; 13. spray pump; 14. nozzle; 15. discharge hopper; 16. observation window; and 17. maintenance window. Detailed Implementation

[0037] To enhance understanding of the present invention, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain the invention and do not limit the scope of protection of the invention.

[0038] Example

[0039] like Figure 1 As shown, a tubular chain circulating mixing device includes a compost bin 1 and a tubular chain conveyor.

[0040] The composting bin 1 is provided with a feed inlet 2 at the top and a discharge outlet 3 with a valve at the bottom.

[0041] The feeding end of the tubular chain conveyor is connected to the discharge port 3, and the unloading end of the tubular chain conveyor is connected to the inlet 2. The tubular chain conveyor transports the material from the discharge port 3 to the inlet 2.

[0042] The material is first added into the compost bin 1 through the inlet 2. The material bin moves downward to the outlet 3, and then is conveyed upward to the inlet 2 through the tubular chain conveyor. The material re-enters the compost bin 1, thus realizing the turning of the material. The turning process is very simple and can be slowly turned over over a long period of time.

[0043] The tubular chain conveying device includes a chain rope 4, chain segments 5, a driving sprocket 6, a driven sprocket 7, a feeding pipe 8, and a circulation pipe 11. The chain rope 4 has a ring structure, and several chain segments 5 are evenly distributed on the chain rope 4. The chain rope 4 passes through the middle of the chain segments 5. The driving sprocket 6 is located at the top of the compost bin 1, and the driven sprocket 7 is located at the bottom of the compost bin 1. The driving sprocket 6 and the driven sprocket 7 are surrounded by grooves, and radially distributed with slots. The feeding pipe 8 and the circulation pipe 11 are respectively connected to the driving sprocket 6 and the driven sprocket 7. The two sides of the wheel 6 extend from the outside of the compost bin 1 to the two sides of the driven sprocket 7; the chain rope 4 is wound around the driving sprocket 6 and the driven sprocket 7 respectively, and the chain rope 4 between the driving sprocket 6 and the driven sprocket 7 passes through the feeding pipe 8 and the circulation pipe 11. The chain piece 5 is adapted to the chain piece 5, and the outer edge of the chain piece 5 is engaged with the feeding pipe 8 and the circulation pipe 11; the lower side wall of the feeding pipe 8 is provided with a feeding port 9 that communicates with the discharge port 3, and the upper side wall of the feeding pipe 8 is provided with a discharge port 10 that connects with the inlet port 2.

[0044] The drive sprocket 6 and driven sprocket 7 work together to drive the chain rope 4 and chain links 5 to rotate in a cycle. Since the chain rope 4 drives the chain links 5 through the feed pipe 8 and the circulation pipe 11, the feed pipe 8 guides the chain rope 4 and chain links 5, facilitating their rotation from the bottom to the top of the compost bin 1. Simultaneously, the chain links 5 push the material inside the feed pipe 8. The material first enters the feed pipe 8 through the feed inlet 9, and then is pushed upwards by the chain links 5, exiting when it reaches the discharge outlet 10. After passing the drive sprocket 6, the chain rope 4 drives the chain links 5 through the circulation pipe 11 to the driven sprocket for the next cycle.

[0045] The motor drives the drive sprocket 6 via a reducer. This facilitates speed reduction to provide greater torque and more stable drive for the chain links 5 to be transported within the feed tube 8.

[0046] It also includes a fermentation liquid chamber 12 connected to the lower end of the feeding pipe 8, and the fermentation liquid chamber 12 is filled with fermentation liquid. This facilitates the addition of fermentation liquid to the material, allowing for more even addition of fermentation liquid while turning the material.

[0047] A spray pump 13 is installed inside the fermentation liquid tank 12, and a nozzle 14 is installed inside the feeding pipe 8. The spray pump 13 is connected to the nozzle 14 through a pipe so that the fermentation liquid can be sprayed evenly on the inner wall of the feeding pipe 8.

[0048] The fermentation liquid chamber 12 is located upstream of the feed port 9. There is no material upstream of the feed port 9, so that the fermentation liquid can be sprayed more evenly on the inner wall of the feed pipe 8, so that the chain plate 5 can push it to the feed port 9 to mix with the material.

[0049] The discharge port 3 is connected to the feeding pipe 8 via the discharge bin 15, facilitating the connection between the two.

[0050] The side wall of the discharge hopper 15 is provided with a transparent observation window 16 to facilitate observation of the material falling inside.

[0051] The side wall of the discharge hopper 15 is provided with an inspection window 17 to facilitate internal maintenance.

[0052] The beneficial effects of this invention are:

[0053] In this solution, the material falls from the discharge port 3 of the compost bin 1 and is then reintroduced into the compost bin 1 via a connected conveying device, thereby achieving material turning. The turning process is very simple and can be stable for a long time.

[0054] A method of using a tubular chain circulating mixing device, the method comprising the following:

[0055] The tubular chain composting method uses mechanical circulation and turning to ensure thorough homogenization of the material across multiple surfaces. Simultaneously, it utilizes a multi-point external aeration system to achieve uniform aeration and on-demand aeration control during the composting process, significantly shortening the composting cycle, improving composting efficiency, and ensuring balanced and compliant material maturity. The entire composting process is divided into three stages: a pre-composting degradation stage (2 days), a secondary composting oxidation stage (4 days), and a tertiary complete composting and aging stage (2 days). Combined with cyclic turning, the standard composting cycle is 8 days, and the compost product's maturity can reach over 85%. Material mixing and turning are achieved through the cyclic mixing and turning of the tubular chain system, allowing the pile to rapidly cool and heat up for uniform decomposition, stabilizing at a high temperature range of 65-85℃ for 2-3 days. The complete post-composting stage involves further cyclic mixing and fermentation for 1-2 days, allowing the temperature to naturally decrease and stabilize at ambient temperature, marking the completion of composting. Specific steps are as follows:

[0056] Step 1: Equipment Preparation and Raw Material Pretreatment. Place the compost bin on a level site and ensure a stable power connection. Crush the main organic waste (such as straw and garden waste) into 2-5cm pieces and pre-mix it with nitrogen-containing raw materials (such as poultry and livestock manure and soybean meal) to adjust the carbon-nitrogen ratio. The total amount of material fed in a single batch should not exceed 90% of the effective volume of the bin, leaving space for the material to circulate and turn over in the pipes.

[0057] Step Two: Initial Feeding and Inoculation. The pre-treated mixed raw materials are fed into the fermentation chamber through the inlet. Then, a special compound inoculant at a dry weight of 1‰-3‰ of the raw materials is dissolved in an appropriate amount of water and added to the fermentation broth chamber. The fermentation broth is then evenly sprayed onto the raw materials during the circulation process using a spray pump. The equipment is started, and the tubular chain conveyor system is allowed to complete one full cycle (approximately 15-30 minutes) to ensure thorough and uniform mixing of the raw materials, moisture, and inoculant. After completion, the finished product outlet valve is closed, and the system enters the "circulating fermentation" mode.

[0058] Step 3: The first pre-decomposition and degradation stage (2 days) and the second maturation and oxidation stage (4 days) are completed. On the control panel, set the fermentation parameters: target temperature range of 55~85℃ and humidity range of 55%~60%. Start the system; the motor drives the chain and chain plates through the reducer, causing the material to continuously circulate within the closed pipe, completing three cycles of material mixing. Then, the first pre-decomposition and degradation stage begins. During this period, adjust the aeration rate according to the working conditions to ensure the oxygen required for aerobic fermentation. After 2 days, depending on the working conditions, repeat the cycle and turning to enter the second maturation and oxidation stage. During this period, adjust the aeration rate promptly to maintain the pile temperature at 55~85℃. If the temperature reaches 90℃, increase aeration and cycle and turn the pile to lower the temperature. The second maturation and oxidation stage takes approximately 4 days. Low-temperature regulation: When the temperature and humidity sensor detects that the pile temperature is below 55℃ and cannot be raised for an extended period, adjust the microbial fermentation agent ratio and type, and test the organic matter and pH value of the pile to identify the cause and proceed with a second compound fermentation. Humidity control: Due to heat generation and ventilation during fermentation, the moisture content of the material will gradually decrease. When the humidity is detected to be below the preset threshold of 55%, water can be automatically replenished through atomizing nozzles integrated into the pipeline or from the feed inlet to maintain the moisture content within the optimal range of 55% to 60%. This stage lasts for 4 to 6 days. Through tubular chain high-temperature composting, the material is uniformly decomposed, and pathogens and weed seeds are effectively killed.

[0059] Step 4: Three stages of complete maturation and aging, following the completion of the second stage of maturation and oxidation. The material temperature drops to a uniform level, eventually reaching ambient temperature. No additional heating or stirring is required during this stage, but the ventilation system can maintain a small amount of airflow. The control panel continuously records temperature changes. When the temperature at the center of the pile stabilizes, and after two days of rest, maturation is complete.

[0060] Step 5: Discharge and Equipment Reset. The matured compost is dark brown, with a loose structure and no odor. During discharge, open the finished product discharge valve on the control panel. Then, start the chain conveyor system; the matured compost will be smoothly and continuously conveyed to the discharge port by the chain links for direct baling and collection. After unloading, close the discharge valve. The equipment is now ready to be fed with the next batch of raw materials for continuous operation.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A tubular chain-type circulating mixing device, characterized in that, Includes compost bins (1) and tubular chain conveyor; The composting bin (1) is provided with a feed inlet (2) at the top and a discharge outlet (3) with a valve at the bottom. The feeding end of the tubular chain conveyor is connected to the discharge port (3), and the unloading end of the tubular chain conveyor is connected to the inlet port (2). The tubular chain conveyor transports the material from the discharge port (3) to the inlet port (2).

2. The tubular chain circulating mixing equipment according to claim 1, characterized in that: The tubular chain conveying device includes a chain rope (4), chain pieces (5), a driving sprocket (6), a driven sprocket (7), a feeding pipe (8), and a circulation pipe (11); The chain (4) has a ring structure, and several chain pieces (5) are evenly distributed on the chain (4). The chain (4) passes through the middle of the chain pieces (5). The driving sprocket (6) is located at the top of the compost bin (1), and the driven sprocket (7) is located at the bottom of the compost bin (1). The driving sprocket (6) and the driven sprocket (7) are surrounded by grooves, and the driving sprocket (6) and the driven sprocket (7) are radially distributed with plate grooves. The feeding pipe (8) and the circulation pipe (11) extend from both sides of the driving sprocket (6) through the outside of the compost bin (1) to both sides of the driven sprocket (7); The chain rope (4) is wound around the driving sprocket (6) and the driven sprocket (7) respectively. The chain rope (4) between the driving sprocket (6) and the driven sprocket (7) passes through the feeding pipe (8) and the circulation pipe (11). The chain piece (5) is adapted to the chain piece (5). The outer edge of the chain piece (5) is engaged with the feeding pipe (8) and the circulation pipe (11). The lower end sidewall of the feeding pipe (8) is provided with a feeding port (9) that communicates with the discharge port (3), and the upper end sidewall of the feeding pipe (8) is provided with a discharging port (10) that connects with the inlet port (2).

3. The tubular chain circulating mixing equipment according to claim 2, characterized in that: The motor drives the drive sprocket (6) through a reducer.

4. The tubular chain circulating mixing equipment according to claim 2, characterized in that: It also includes a fermentation liquid tank (12) connected to the lower end of the feeding pipe (8), and the fermentation liquid tank (12) is filled with fermentation liquid.

5. The tubular chain circulating mixing equipment according to claim 4, characterized in that: A spray pump (13) is installed in the fermentation liquid tank (12), and a nozzle (14) is installed in the feeding pipe (8). The spray pump (13) is connected to the nozzle (14) through a pipeline.

6. The tubular chain circulating mixing equipment according to claim 5, characterized in that: The fermentation liquid chamber (12) is located upstream of the feed inlet (9).

7. A tubular chain circulating mixing device according to claim 2, characterized in that: The discharge port (3) is connected to the feeding pipe (8) through the discharge bin (15).

8. A tubular chain circulating mixing device according to claim 7, characterized in that: The side wall of the discharge hopper (15) is provided with a transparent observation window (16).

9. A tubular chain circulating mixing device according to claim 7, characterized in that: The side wall of the discharge hopper (15) is provided with an inspection window (17).

10. A method of using a tubular chain circulating mixing device, the method of using being based on the tubular chain circulating mixing device according to claim 1, characterized in that: Includes the following steps: Step 1: Raw material pretreatment: Crush organic waste into 2-5cm pieces and mix it with nitrogen-containing raw materials to adjust the carbon-nitrogen ratio; Step 2: Initial Feeding and Inoculation: The pretreated nitrogen-containing raw materials are fed into the chamber through the inlet; then, 1‰~3‰ of the dry weight of the raw materials is dissolved in an appropriate amount of water and added to the fermentation liquid chamber. The fermentation liquid is then evenly sprayed onto the fermentation raw materials through a spray pump during circulation; the equipment is started to ensure that the raw materials, water and inoculants are fully and evenly mixed; after completion, the outlet valve is closed to put the system into "circulating fermentation" mode. Step 3: The first pre-decomposition and secondary ripening oxidation stage. Fermentation parameters are set: target temperature range 55~85℃, humidity range 55%~60%. The motor is started, driving the chain and chain plates through a reducer, causing the material to continuously circulate within the closed pipe, completing 3-4 cycles of material mixing. Then, the first pre-decomposition stage begins. After 2 days, the pile is turned over again, entering the secondary ripening oxidation stage. During this period, the aeration rate is adjusted to maintain the pile temperature at 55~85℃. When the temperature reaches 90℃, cooling is achieved by increasing aeration and turning the pile. The secondary ripening oxidation takes 4 days. Step 4: Three complete maturation and aging stages, after the second maturation and oxidation is completed; no additional heating or stirring is required in this stage. Maintain a small amount of ventilation. When the temperature at the center of the pile tends to stabilize, and after standing for two days, the maturation is complete.

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