Aerobic fermentation continuous composting system

Abstract

The utility model discloses an aerobic fermentation continuous composting system, which comprises a fermentation bin, a blower device and an aeration pipe network, a plurality of fermentation tanks are arranged side by side in a first direction, each fermentation tank forms a plurality of fermentation areas in a second direction, and the arrangement of the plurality of fermentation areas can realize the miniaturization and continuous material distribution of a pile body. Heat energy generated by decomposition of a pile body is utilized, and the problems of difficult heat generation, slow temperature rise, long fermentation period and the like are solved; the plurality of blower devices are arranged side by side in the second direction, each aeration pipe network comprises a main pipe and a plurality of branch pipes, and the plurality of blower devices and the aeration pipe networks are used for carrying out stepped aeration on the fermentation area, so that the ventilation quantity can be adjusted according to the fermentation temperature of each miniaturized pile body; the energy consumption is reduced while the heating and heat dissipation effects are ensured; the plurality of branch pipes are distributed on the main pipe at intervals and are oppositely arranged in the second direction, so that the oxygen supply and heat dissipation effects of the aeration pipe network on the fermentation area can be ensured, and the optimal fermentation condition is ensured.

Description

Technical Field

[0001] This application relates to the field of composting equipment technology, and in particular to an aerobic fermentation continuous composting system. Background Technology

[0002] Aerobic fermentation technology is an important means to reduce, render harmless, and recycle organic solid waste. Among them, windrow and trough are the most common aerobic fermentation composting systems, which are usually sequencing batch fermentation modes. They have advantages such as large processing scale, low investment cost, and easy operation. However, in windrow and trough systems, due to the large pile size, there are many problems such as slow temperature rise, difficulty in heat dissipation during high-temperature periods, long fermentation cycle, need for large-volume aeration for heat dissipation, and high energy loss. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an aerobic fermentation continuous composting system that can achieve continuous fermentation and stepped aeration, reduce the air volume required for aeration, save energy, and fully utilize the heat generated by the fermentation of each sub-pile. Through the heat generated by the preceding pile, the subsequent pile can be rapidly heated, and the heat generated by the subsequent pile can be used to dry the preceding pile, quickly remove moisture, shorten the composting cycle, and reduce composting costs.

[0004] An aerobic fermentation continuous composting system according to a first aspect embodiment of this application includes:

[0005] A fermentation chamber, comprising multiple fermentation tanks arranged side-by-side in a first direction, with each fermentation tank forming multiple fermentation zones in a second direction;

[0006] A blower device, wherein multiple blowers are provided, the blowers are located on one side of the fermentation chamber, and the multiple blowers are arranged side by side in a second direction;

[0007] The aeration pipe network is provided in multiple ways. Each aeration pipe network includes a main pipe and multiple branch pipes. One end of the main pipe is connected to the blower. The other end of the main pipe extends into the fermentation chamber and passes through multiple fermentation tanks along the first direction. The multiple branch pipes are distributed at intervals on the main pipe and are arranged opposite to each other in the second direction.

[0008] An aerobic fermentation continuous composting system according to an embodiment of the first aspect of this application has at least the following beneficial effects: The aerobic fermentation continuous composting system of this application includes a fermentation chamber, a blower, and an aeration pipe network. Multiple fermentation tanks are arranged side-by-side in a first direction, and each fermentation tank forms multiple fermentation zones in a second direction. The arrangement of multiple fermentation zones enables miniaturized material distribution in the compost pile, allowing each pile in different fermentation zones to undergo different fermentation times, utilizing the heat energy generated by the decomposition of the compost pile, and solving problems such as difficulty in heat generation and slow temperature rise; multiple blowers are arranged side-by-side in the second direction... The aeration pipe network is arranged in a series of multiple sections, each consisting of a main pipe and multiple branch pipes. One end of the main pipe is connected to a blower, and the other end extends into the fermentation chamber and passes through multiple fermentation tanks along a first direction. The fermentation zone is aerated in a stepped manner through multiple blowers and the aeration pipe network, which can dissipate heat separately for each miniaturized pile, ensuring heat dissipation while saving energy. The multiple branch pipes are distributed at intervals on the main pipe and are arranged opposite each other in a second direction, which can ensure the heat dissipation effect of the aeration pipe network on the fermentation zone, achieve sufficient heat dissipation, and solve the problem of high energy consumption.

[0009] According to some embodiments of this application, the fermentation chamber is provided with a groove, and the aeration pipe network is disposed in the groove.

[0010] According to some embodiments of this application, the length of the branch pipe in the second direction is 10% to 20% of the length of the fermentation tank in the second direction, and the branch pipe is provided with a plurality of aeration holes, which are evenly distributed on the branch pipe.

[0011] According to some embodiments of this application, the spacing between the aeration holes is less than or equal to 30 cm.

[0012] According to some embodiments of this application, the length of the fermentation chamber in the first direction is less than 15m, and the length of the fermentation tank in the first direction is less than 4m.

[0013] According to some embodiments of this application, the blower includes a blower and a blower control module, the blower control module is equipped with a temperature sensor, and the temperature sensor is located inside the fermentation chamber.

[0014] According to some embodiments of this application, the blower is configured as a centrifugal blower.

[0015] According to some embodiments of this application, a material spreading device is also included, which is disposed above the fermentation chamber and is used to spread material into the fermentation chamber.

[0016] According to some embodiments of this application, a plurality of discharge devices are also included, the number of which corresponds to the number of fermentation tanks, and the discharge devices are disposed on one side of the fermentation tanks.

[0017] According to some embodiments of this application, the discharge device includes a discharge screw, a screw rotation drive component, and a screw translation drive component. The screw rotation drive component drives the discharge screw to rotate, and the screw translation drive component drives the discharge screw to translate.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of an aerobic fermentation continuous composting system according to one embodiment of this application. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, inside, outside, etc., are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this application, unless otherwise expressly defined, terms such as setting, installing, connecting, assembling, and cooperating should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0025] The following reference Figure 1This application describes an aerobic fermentation continuous composting system according to an embodiment of the present application.

[0026] An embodiment of this application provides an aerobic fermentation continuous composting system, such as... Figure 1 As shown, Figure 1 In this diagram, the X-axis is the first direction and the Y-axis is the second direction. An aerobic fermentation continuous composting system includes a fermentation chamber, a blower 200, and an aeration pipe network. The fermentation chamber includes multiple fermentation tanks 100, which are arranged side-by-side in the first direction. Each fermentation tank 100 forms multiple fermentation zones 110 in the second direction. The arrangement of multiple fermentation zones 110 enables miniaturized material distribution in the compost pile, allowing each pile in different fermentation zones 110 to undergo different fermentation times. This utilizes the heat energy generated by the decomposition of the compost pile, solving problems such as difficulty in heat generation, slow temperature rise, and long fermentation cycles. It can be understood that by setting fermentation zones 110 in the second direction and sequentially distributing material within these zones, the pile with material distributed first will ferment and generate heat first. The pile with material distributed later can utilize the heat energy generated by the decomposition of the earlier pile, shortening the composting cycle and avoiding the problem of difficulty in heating the pile, thus reducing the management difficulty of the composting process.

[0027] Multiple blower devices 200 are provided, located on one side of the fermentation chamber. These blower devices 200 are arranged side-by-side in a second direction. Correspondingly, multiple aeration pipe networks are also provided. Each aeration pipe network includes a main pipe 310 and multiple branch pipes 320. One end of the main pipe 310 is connected to a blower device 200, and the other end extends into the fermentation chamber and passes through multiple fermentation tanks 100 along a first direction. The fermentation zone 110, blower devices 200, and aeration pipe networks correspond one-to-one. Through the multiple blower devices 200 and aeration pipe networks, each fermentation zone 110 in the second direction receives stepped aeration. This allows for heat dissipation based on the material distribution time of each miniaturized pile, ensuring effective heat dissipation while saving energy. Multiple branch pipes 320 are spaced apart on the main pipe 310 and are arranged opposite each other in the second direction, facing towards the second direction. This ensures effective heat dissipation from the aeration pipe network to the fermentation zone 110, achieving sufficient heat dissipation.

[0028] According to some embodiments of this application, the fermentation chamber is provided with a groove, and the aeration pipe network is disposed within the groove. The aeration pipe network includes a main pipe 310 and multiple branch pipes 320. One end of the main pipe 310 is connected to the blower 200, and the other end of the main pipe 310 extends into the fermentation chamber along a first direction and passes through multiple fermentation tanks 100. The fermentation chamber is provided with a groove adapted to the main pipe 310 and the branch pipes 320. The groove accommodates the main pipe 310 and the branch pipes 320 of the aeration pipe network to facilitate the layout of the aeration pipe network.

[0029] According to some embodiments of this application, the length of the branch pipe 320 in the second direction is 10% to 20% of the length of the fermentation tank 100 in the second direction. In some embodiments, five fermentation zones 110 are provided, in which case the length of the fermentation zone 110 is one-fifth of the length of the fermentation tank 100, and the length of the material spreading device in a single application is one-fifth of the length of the fermentation tank 100. In other embodiments, ten fermentation zones 110 are provided, in which case the length of the fermentation zone 110 is one-tenth of the length of the fermentation tank 100, and the length of the material spreading device in a single application is one-tenth of the length of the fermentation tank 100.

[0030] According to some embodiments of this application, a plurality of aeration holes are provided on the branch pipe 320, and the plurality of aeration holes are evenly distributed on the branch pipe 320. The aeration holes on the branch pipe 320 improve the aeration effect and achieve sufficient heat dissipation. Specifically, in some embodiments, the spacing between each aeration hole is less than or equal to 30 cm. In other embodiments, the diameter of the aeration holes is set to 3-8 mm. The number of aeration holes, the spacing between the aeration holes, and the diameter of the aeration holes can be adjusted according to actual needs, all of which are within the protection scope of this application.

[0031] Multiple fermentation tanks 100 are arranged side by side in the first direction, and the width and height of the multiple fermentation tanks 100 are the same to facilitate the feeding and discharging of materials. Specifically, in some embodiments, the length of the fermentation chamber in the first direction is less than 15m, and the length of the fermentation tank in the first direction is less than 4m.

[0032] According to some embodiments of this application, the blower device 200 includes a blower and a blower control module. The blower control module is equipped with a temperature sensor, which is located inside the fermentation chamber. After the material is placed in the fermentation zone 110, the temperature sensor is located in the middle of the pile, with a depth greater than 1m within the pile. The temperature sensor is electrically connected to the blower control module. When the temperature sensor detects that the pile temperature reaches 65°C or above, it sends a signal to the blower control module, which then controls the blower's ventilation rate to be 0.1-0.2 m³ / (min·m³). When the temperature sensor detects that the pile temperature drops to 60°C or below, it sends a signal to the blower control module, which then controls the blower's ventilation rate to be 0.05-0.1 m³ / (min·m³). When the temperature sensor detects that the pile temperature drops to 45°C or below, it sends a signal to the blower control module, which then controls the blower to stop ventilation. In some embodiments, the blower is a centrifugal blower. In other embodiments, the blower may also be a Roots blower or an air pump, which can also achieve ventilation and heat dissipation for the fermentation zone 110.

[0033] According to some embodiments of this application, a material-laying device (not shown in the figures) is also included. The material-laying device is disposed above the fermentation chamber and is used to lay material into the fermentation chamber. The fermentation chamber includes multiple fermentation tanks 100, and each fermentation tank 100 forms multiple fermentation zones 110 in a second direction. The material-laying device is capable of laying material individually into each fermentation zone 110. The initial laying point of the material-laying device is located on the side where the fermentation tank 100 discharges material, and the material is continuously laid out at time intervals. Specifically, the material-laying device lays material into the fermentation zones 110 along the second direction at time intervals, and the length of a single laying operation is the length of one fermentation zone 110. In some embodiments, the time interval for continuous laying by the material-laying device is one to three days.

[0034] According to some embodiments of this application, a plurality of discharge devices 400 are also included, the number of which corresponds to the number of fermentation tanks 100. The discharge devices 400 are disposed on one side of the fermentation tank 100. The discharge devices 400 are used for discharging material from the pile. The discharge devices 400 are disposed correspondingly to the fermentation tanks 100. The initial material distribution point of the pile is located on the side of the fermentation tank 100 near the discharge device 400. The piles are continuously arranged according to time intervals. The fermentation tank 100 forms a plurality of fermentation zones 110 in the second direction. The arrangement of the plurality of fermentation zones 110 enables the miniaturization of material distribution in the pile. Each pile in different fermentation zones 110 is in a different fermentation time. The piles near the discharge device 400 are distributed the earliest and will ferment and generate heat first. This ensures that the piles that are distributed first are discharged first, guaranteeing the discharge process and forming a continuous fermentation mode.

[0035] Specifically, in some embodiments, the discharge device 400 includes a discharge screw, a screw rotation drive component, and a screw translation drive component. The screw rotation drive component drives the discharge screw to rotate, and the rotation of the discharge screw can drive the pile to discharge material. The screw translation drive component drives the discharge screw to translate, and the discharge screw translates to the fermentation zone 110 inside the fermentation chamber, which can discharge material from the pile in other fermentation zones 110.

[0036] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. An aerobic fermentation continuous composting system, characterized in that, include: A fermentation chamber, comprising multiple fermentation tanks arranged side-by-side in a first direction, with each fermentation tank forming multiple fermentation zones in a second direction; A blower device, wherein multiple blowers are provided, and the blowers are located outside the fermentation chamber, with the multiple blowers arranged side by side in a second direction; The aeration pipe network is provided in multiple ways. Each aeration pipe network includes a main pipe and multiple branch pipes. One end of the main pipe is connected to the blower. The other end of the main pipe extends into the fermentation chamber and passes through multiple fermentation tanks along the first direction. The multiple branch pipes are distributed at intervals on the main pipe and are arranged opposite to each other in the second direction.

2. The aerobic fermentation continuous composting system according to claim 1, characterized in that, The fermentation chamber is provided with a groove, and the aeration pipe network is arranged in the groove.

3. The aerobic fermentation continuous composting system according to claim 1, characterized in that, The length of the branch pipe in the second direction is 10% to 20% of the length of the fermentation tank in the second direction. The branch pipe is provided with a plurality of aeration holes, which are evenly distributed on the branch pipe.

4. The aerobic fermentation continuous composting system according to claim 3, characterized in that, The spacing between the aeration holes is less than or equal to 30 cm.

5. The aerobic fermentation continuous composting system according to claim 1, characterized in that, The length of the fermentation chamber in the first direction is less than 15m, and the length of the fermentation tank in the first direction is less than 4m.

6. The aerobic fermentation continuous composting system according to claim 1, characterized in that, The blower device includes a blower and a blower control module. The blower control module is equipped with a temperature sensor, which is located inside the fermentation chamber.

7. The aerobic fermentation continuous composting system according to claim 6, characterized in that, The blower is a centrifugal blower.

8. The aerobic fermentation continuous composting system according to claim 1, characterized in that, It also includes a material spreading device, which is located at the top of the fermentation chamber and is used to spread material into the fermentation chamber.

9. The aerobic fermentation continuous composting system according to claim 1, characterized in that, It also includes multiple discharge devices, the number of which corresponds to the number of fermentation tanks, and the discharge devices are located on one side of the fermentation tanks.

10. An aerobic fermentation continuous composting system according to claim 9, characterized in that, The discharge device includes a discharge screw, a screw rotation drive component, and a screw translation drive component. The screw rotation drive component drives the discharge screw to rotate, and the screw translation drive component drives the discharge screw to translate.

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