Agricultural waste treatment device

Abstract

The utility model discloses an agricultural waste treatment device which comprises a composting tank and a composting control system, the composting tank is covered with a composting film, and the composting control system monitors and adjusts composting conditions in the composting tank; a geothermal heat exchange system and an aeration system are arranged in the composting tank, the aeration system provides oxygen for the composting tank, and the geothermal heat exchange system collects heat generated by fermentation in the composting tank and provides heat for the aeration system. According to the utility model, the geothermal heat exchange system is arranged, when the initial fermentation pile body generates temperature, the heat exchange system starts to circularly work, and heat is collected in the heat exchange system, so that the loss and loss of the heat are reduced. When the temperature in the composting tank is reduced, the heat in the heat exchange system is released, so that the fermentation efficiency can be further improved, and meanwhile, the energy is also saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an agricultural waste treatment device. BACKGROUND

[0002] Aerobic composting is a biological treatment process that uses aerobic microorganisms (microorganisms that thrive in the presence of oxygen) to convert organic waste into fertilizer. This method not only can handle a large amount of organic waste, such as food residue, crop residue, garden waste and some types of paper and wood, but also can produce high-quality compost.

[0003] In the aerobic composting process, aerobic microorganisms obtain energy by oxidizing organic matter, while synthesizing new cytoplasm, thus growing and reproducing. This process generates heat, causing the temperature of the compost pile to rise, usually between 55°C and 60°C. High temperature helps to kill pathogens and weed seeds, while also speeding up the decomposition rate of organic matter.

[0004] Traditional aerobic composting methods include pile, tank and fermentation tank, but they each have certain problems. For example, pile and tank fermentation require frequent turning, which causes heat to be quickly lost, is not conducive to the degradation of the pile, and has a long fermentation time and a poor working environment; tank fermentation requires a large one-time capital investment, has high maintenance costs in the later period, and has a low market share.

[0005] In view of these problems, the film fermentation technology has emerged in recent years. Film fermentation technology is an advanced biological treatment technology, mainly used for the treatment and resource utilization of organic waste, and has shown significant advantages in the management of agricultural waste such as livestock and poultry manure. This technology creates a controlled microbial environment by covering special film materials on organic waste, thereby accelerating the aerobic degradation process of organic matter.

[0006] However, any composting method is susceptible to environmental temperature and human factors. Especially in the plateau and northeast regions of China, due to the large diurnal temperature difference and long duration of low temperature in autumn and winter, it is difficult to raise the temperature of the pile. Such a low-temperature environment is not conducive to the composting fermentation process. Because composting fermentation requires a certain temperature to maintain the activity of microorganisms, and low temperature will inhibit the growth and reproduction of microorganisms, resulting in a slow or even stop of the fermentation rate.

[0007] Secondly, oxygen is an indispensable factor in the composting fermentation process. In aerobic composting, microorganisms need sufficient oxygen to carry out metabolism, thereby decomposing organic matter. However, in cold environments, the aeration system may be affected by freezing, resulting in insufficient oxygen supply, further affecting the stability of the fermentation.

[0008] The prior art has a heating device for heating the input oxygen gas, but this way has high energy consumption and high cost. Utility model content

[0009] The utility model discloses an agricultural waste treatment device, to solve the technical problem mentioned in the above background art.

[0010] The technical scheme for achieving the utility model is: an agricultural waste treatment device, comprising a composting tank and a composting control system, the composting tank is covered with a composting film, the composting control system monitors and adjusts the composting conditions in the composting tank, a geothermal heat exchange system and an aeration system are arranged in the composting tank, the aeration system provides oxygen for the composting tank, and the geothermal heat exchange system collects the heat generated by fermentation in the composting tank and provides heat for the aeration system.

[0011] Further, the composting control system comprises a controller, and a temperature sensor and an oxygen sensor electrically connected to the controller, the temperature sensor detects the temperature in the composting tank, and the oxygen sensor detects the oxygen concentration in the composting tank.

[0012] Further, the composting control system further comprises an oxygen control pipeline, which is communicated with the aeration system.

[0013] Further, the bottom of the composting tank is provided with a pipeline groove, the geothermal heat exchange system comprises a geothermal heat exchange pipeline, and the aeration system comprises an aeration pipeline, and the aeration pipeline and the geothermal heat exchange pipeline are arranged in the pipeline groove.

[0014] Further, the geothermal heat exchange system further comprises a geothermal pipeline inlet, a geothermal pipeline outlet, a geothermal pipeline pump, a geothermal heat exchange energy storage box, an air duct switching switch, an air duct inlet and an air duct outlet, the air duct inlet and the air duct outlet are connected with the aeration pipeline, the geothermal pipeline inlet and the geothermal pipeline outlet are connected with the geothermal heat exchange pipeline, and the air duct switching switch controls the on-off of the air duct inlet and the air duct outlet.

[0015] Further, the pipeline groove is also arranged on the wall around the composting tank.

[0016] Further, the geothermal heat exchange pipeline is a surrounding heat exchange pipeline.

[0017] By adopting the above technical scheme, the utility model has the following beneficial effects:

[0018] (1) The geothermal heat exchange system is arranged, when the initial pile generates temperature during fermentation, the heat exchange system starts to work in cycle, the heat is collected in the heat exchange system, and the heat dissipation and loss are reduced.

[0019] (2) The temperature sensor and the oxygen sensor of the utility model monitor and adjust the key parameters in the composting process to ensure the smooth progress of the composting process.

[0020] (3) The geothermal heat exchange pipeline of the utility model is a surrounding heat exchange pipeline, and a larger heat exchange area can be realized in a relatively smaller space. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the content of the utility model more easily understood clearly, the utility model will be further described in detail below according to specific embodiments and in conjunction with the drawings, wherein

[0022] Fig. 1 It is a structural schematic view of the utility model.

[0023] Fig. 2 It is a structural schematic view of the geothermal heat exchange pipeline and the aeration pipeline of the utility model.

[0024] Fig. 3 It is a structural schematic view of the geothermal heat exchange system of the utility model.

[0025] The reference signs in the drawings are as follows: composting tank 1, composting control system 2, controller 2-1, temperature sensor 2-2, oxygen sensor 2-3, oxygen control pipeline 2-4, composting membrane 3, geothermal heat exchange system 4, geothermal heat exchange pipeline 4-1, geothermal pipeline inlet 4-2, geothermal pipeline outlet 4-3, geothermal pipeline pump 4-4, geothermal heat exchange energy storage box 4-5, air duct switching switch 4-6, air duct inlet 4-7, air duct outlet 4-8, aeration pipeline 5, pipeline tank 6. DETAILED DESCRIPTION

[0026] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the drawings of the specification and specific embodiments.

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0029] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the embodiments of the present application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly understood by those skilled in the art, and are merely for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The present application will be further described below in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and cannot limit the protection scope of the present application.

[0032] (Embodiment 1)

[0033] See Figs. 1-3 The agricultural waste treatment device of the present embodiment comprises a composting tank 1 and a composting control system 2, the composting tank 1 is covered with a composting film 3, and the composting control system 3 monitors and adjusts the composting conditions in the composting tank 1; The composting tank 1 is provided with a geothermal heat exchange system 4 and an aeration system, the aeration system provides oxygen for the composting tank 1, and the geothermal heat exchange system 4 collects the heat generated by fermentation in the composting tank and provides heat for the aeration system.

[0034] The compost control system 2 comprises a controller 2-1, a temperature sensor 2-2 and an oxygen sensor 2-3 electrically connected to the controller 2-1, the temperature sensor 2-2 detects the temperature in the compost tank 1, and the oxygen sensor 2-3 detects the oxygen concentration in the compost tank 1.

[0035] The compost control system 2 further comprises an oxygen control pipeline 2-4 in communication with the aeration system.

[0036] The bottom of the compost tank 1 is provided with a pipeline groove 6, the geothermal heat exchange system 4 comprises a geothermal heat exchange pipeline 4-1, the aeration system comprises an aeration pipeline 5 and a fan; the aeration pipeline 5 and the geothermal heat exchange pipeline 4-1 are both arranged in the pipeline groove 6.

[0037] The geothermal heat exchange system 4 further comprises a geothermal pipeline inlet 4-2, a geothermal pipeline outlet 4-3, a geothermal pipeline pump 4-4, a geothermal heat exchange energy storage box 4-5, an air duct switching switch 4-6, an air duct inlet 4-7 and an air duct outlet 4-8, the aeration pipeline 5 is connected with the air duct inlet 4-7 and the air duct outlet 4-8, the geothermal heat exchange pipeline 4-1 is connected with the geothermal pipeline inlet 4-2 and the geothermal pipeline outlet 4-3, the geothermal pipeline pump 4-4 is started, the whole system runs to store energy and exchange, and the heat inside the cabin is improved. In the early stage of fermentation, when the heat of the aeration pipeline 5 is low, the system will close the air duct switching switch 4-6, which can effectively prevent the heat from being taken away and improve the efficiency; when the fermentation is heated up and the heat of the aeration pipeline 5 is moderate, the system is started, the heat will enter the geothermal heat exchange system 4, at the same time, the heat pump will start to bring the heat into the cabin, and the internal temperature rising speed is accelerated.

[0038] The pipeline groove 6 is also arranged on the wall around the compost tank 1.

[0039] The geothermal heat exchange pipeline 4-1 is a ring-shaped heat exchange pipeline.

[0040] Specifically, the cement hardened ground is used as the production site, the wall around the site is prepared to form the compost tank 1. For example, a 6X20 meter area is selected as the fermentation site. In order to ensure the firmness and durability of the ground, C25 concrete is selected, and the thickness is 200mm. During the construction process, the pipeline groove 6 is reserved in advance on the ground and around the ground, which can facilitate the installation and use of subsequent equipment.

[0041] The aeration pipeline 5 needs to be laid in the pipeline groove 6 on the ground, and the pipelines are connected to the oxygen control pipeline 2-4. In this way, it can ensure that the oxygen supply inside the compost is sufficient, so as to promote the fermentation process.

[0042] Next, the geothermal heat exchange pipeline 4-1 needs to be connected. In this way, the geothermal energy can be used to improve the efficiency of the fermentation process, and the energy consumption can also be reduced.

[0043] The agricultural waste such as rice straw, corn straw, rice husk, manure produced by breeding and the like is mixed uniformly according to certain proportion, and meanwhile, a proper amount of microbial fermentation agent is added. In the process, the moisture of the mixed material is kept at about 65%, and the carbon-nitrogen ratio is controlled at 25-30:1, so as to ensure the fermentation effect.

[0044] The mixed material is poured into the compost tank 1 uniformly, and the height of the compost is kept at about 1.5 meters. Then, the compost film 3 is covered on the compost, so as to prevent the influence of the external environment on the fermentation process.

[0045] Next, the compost control system 2 needs to be started, so that the material starts to ferment. The compost control system 2 can automatically adjust various parameters, so as to ensure the smooth progress of the fermentation process.

[0046] During the fermentation process, the temperature change and the internal oxygen of the compost are monitored by the temperature sensor 2-2 and the oxygen sensor 2-3. If the temperature is too low, the compost control system 2 will automatically adjust the temperature rising auxiliary function of the air burst system, and the temperature is transported by the oxygen control pipeline 2-4, so as to ensure the smooth progress of the material fermentation.

[0047] Finally, when the fermentation is started, the geothermal heat exchange system 4 is automatically started. When the temperature of the initial compost is generated, the geothermal heat exchange system 4 starts to work in circulation, and the heat is collected in the geothermal heat exchange system 4, so as to reduce the heat loss and consumption. When the temperature in the compost tank 1 is reduced, the heat in the geothermal heat exchange system 4 is released, which can further improve the fermentation efficiency, and also saves the energy.

[0048] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above specific embodiments are only the specific embodiments of the present application, and are not used to limit the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An agricultural waste treatment apparatus, characterized by: The composting tank (1) is covered with a composting film (3), and a composting control system (2) is used to monitor and adjust the composting conditions in the composting tank (1); a geothermal heat exchange system (4) and an aeration system are arranged in the composting tank (1), the aeration system provides oxygen for the composting tank (1), and the geothermal heat exchange system (4) collects the heat generated by fermentation in the composting tank (1) and provides heat for the aeration system.

2. An agricultural waste disposal apparatus as claimed in claim 1, wherein: The composting control system (2) comprises a controller (2-1), a temperature sensor (2-2) and an oxygen sensor (2-3) electrically connected to the controller (2-1), the temperature sensor (2-2) detects the temperature in the composting tank (1), and the oxygen sensor (2-3) detects the oxygen concentration in the composting tank (1).

3. An agricultural waste treatment apparatus as claimed in claim 2, wherein: The composting control system (2) further comprises an oxygen control pipeline (2-4) in communication with the aeration system.

4. An agricultural waste disposal apparatus as claimed in claim 1, wherein: The bottom of the composting tank (1) is provided with a pipeline groove (6), the geothermal heat exchange system (4) comprises a geothermal heat exchange pipeline (4-1), and the aeration system comprises an aeration pipeline (5); the aeration pipeline (5) and the geothermal heat exchange pipeline are arranged in the pipeline groove (6).

5. An agricultural waste treatment apparatus as claimed in claim 4, wherein: The geothermal heat exchange system (4) further comprises a geothermal pipeline inlet (4-2), a geothermal pipeline outlet (4-3), a geothermal pipeline pump (4-4), a geothermal heat exchange energy storage box (4-5), an air duct switching switch (4-6), an air duct inlet (4-7) and an air duct outlet (4-8), the air duct inlet (4-7) and the air duct outlet (4-8) are connected with the aeration pipeline (5), the geothermal pipeline inlet (4-2) and the geothermal pipeline outlet (4-3) are connected with the geothermal heat exchange pipeline (4-1), and the air duct switching switch (4-6) controls the on-off of the air duct inlet (4-7) and the air duct outlet (4-8).

6. An agricultural waste disposal apparatus as claimed in claim 4, wherein: The pipeline groove (6) is also arranged on the wall around the composting tank (1).

7. An agricultural waste disposal apparatus as claimed in claim 5, wherein: The geothermal heat exchange pipeline (4-1) is a ring-shaped heat exchange pipeline.

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