Corrosion-promoting nano-film composting device

Abstract

The utility model discloses a decay-promoting nano-film composting device, and belongs to the technical field of organic fertilizer treatment. The device comprises a composting pool, an air blower and a controller, the top of the composting pool is connected with a dome framework in a clamped mode, the dome framework is covered with a nanometer film, a punching net plate is laid on the lower portion in the composting pool, a punching partition cavity is formed in the punching net plate, and biochar is laid in the punching partition cavity. According to the device, the air blower is used for replacing a turner to regulate and control the ventilation condition of a compost body, the effects of saving energy and reducing consumption can be achieved, meanwhile, the device can effectively prevent emission of odor and greenhouse gas through the blocking characteristic of the nanometer film, the physicochemical property of compost is improved through built-in biochar, and the effect of energy conservation and emission reduction is achieved. More favorable environmental conditions are created for microbial activities, so that the degradation and humic degrees of organic matters are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the organic fertilizer processing technical field, more particularly, relate to a kind of promote nanometer membrane compost or fermentation device. BACKGROUND

[0002] With the rapid growth of breeding industry, planting industry and processing industry, a large amount of agricultural solid organic waste is produced, especially livestock manure and crop straw, which is difficult to handle. Improper handling not only causes environmental pollution problems such as odor and greenhouse gas emissions, but also causes waste of organic matter and mineral nutrients. The composting process is to use microorganisms to biodegrade and transform livestock manure. Through this controlled aerobic fermentation process, loose material rich in humus is produced, which can be used as soil improvement or organic fertilizer. Composting is considered an environmentally friendly solid waste treatment method, and its products can be used as organic additives or commercial organic fertilizers, which is the main way of waste resource utilization.

[0003] However, nearly 90% of the breeding enterprises in China currently use static composting method to treat solid manure, i.e. composting without adding auxiliary materials or without air supply. This simple composting technology does not require professional ventilation equipment, and mainly provides micro-aerobic fermentation conditions through free air diffusion. However, this method is relatively primitive, inefficient, and during the composting process, due to the high moisture content of the manure, a crust is easily formed, which prevents the internal material from being stabilized and harmless. Compared with aerobic composting, the temperature of this simple static composting is lower, and the degree of harmlessness is difficult to guarantee. Due to insufficient oxygen supply, local anaerobic conditions can cause microorganisms to convert organic matter in livestock manure into CH4, CO2 and N2O gases. Similarly, nitrogen in the composting process mainly includes organic nitrogen and inorganic nitrogen. Organic nitrogen releases ammonia and nitrogen oxides, while the transformation of inorganic nitrogen produces nitrous oxide and other gases. It is worth noting that the greenhouse effect of CH4 is 25 times that of CO2, while the greenhouse effect of N2O is 298 times that of CO2. The quality of compost products is seriously affected by gas emissions, and similarly, gas emissions also exacerbate climate change. In addition, nitrogen loss during composting is a major problem, which reduces the production efficiency of fertilizer and causes air pollution, mainly the release of NH3 and N2O. About 40% of nitrogen is lost during composting, of which about 80% to 95% of nitrogen is lost in the form of NH3.

[0004] In order to improve the quality of compost and reduce the impact on the environment, appropriate measures need to be taken to achieve the purpose of "emission reduction and promotion of decay" during the composting process, so as to reduce the composting time, improve the degree of organic matter degradation and humification, and reduce the release of ammonia and greenhouse gases. The current livestock manure composting facility structure is relatively simple, mainly building a tank for storing dry manure on the concrete floor, and building a canopy on the tank. This composting facility can prevent manure from getting wet and manure runoff, but the existing dry manure shed is ventilated on all sides, and the odor and greenhouse gases directly enter the air, causing serious pollution to the surrounding environment. Moreover, the available carbon and nitrogen nutrients in livestock manure are also lost in the air, resulting in waste of resources. Practical new type content

[0005] In view of the deficiencies of the prior art, the present application provides a decay-promoting nanometer membrane composting device to save energy and reduce the emission of ammonia and greenhouse gases, while improving the degree of organic matter degradation and humification.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a decay-promoting nanometer membrane composting device, comprising a composting pool, a blower and a controller, the top of the composting pool is clamped with a dome framework, and the dome framework is covered with a nanometer membrane, the inner lower part of the composting pool is paved with a punched screen plate, and the punched screen plate is provided with a punched partition cavity, the punched partition cavity is paved with biochar, the composting pool is paved with an aeration coil below the punched screen plate, the air inlet end of the aeration coil extends out of the composting pool and is connected with the blower, the dome framework is respectively provided with a temperature and humidity sensor, an oxygen content sensor and a pH sensor, and the blower, the temperature and humidity sensor, the oxygen content sensor and the pH sensor are respectively electrically connected with the controller.

[0007] It should be noted that appropriate oxygen needs to be provided for composting, and if the oxygen is insufficient, the composting system will become anaerobic, thereby hindering the composting process. The device of the present application adjusts the ventilation of the pile during the composting process by adding a blower, thereby adjusting the moisture content, temperature and oxygen concentration of the pile, thereby accelerating the microbial activity. In addition, the nanometer membrane of the present application is a marketized fluorine-containing new material e-PTFE molecular membrane, which can be selected to have permeability so that gas and water molecules pass quickly, reduce the moisture content of the material, and effectively prevent odor from overflowing, thereby achieving environmental protection and odor prevention. The biochar is a porous carbon material with good adsorption and water retention properties, which can improve the physical and chemical properties of the compost and create more favorable environmental conditions for microbial activity.

[0008] Further preferably, the decay-promoting nanometer membrane composting device as described above, wherein the top of the composting pool is provided with an annular clamping groove, and the dome framework is clamped in the annular clamping groove.

[0009] Further preferably, the composting device with nanometer membrane for accelerating decomposition as described above, wherein a sealing ring is installed in the annular clamping groove and is arranged between the annular clamping groove and the dome framework.

[0010] Further preferably, the composting device with nanometer membrane for accelerating decomposition as described above, wherein a grommet is arranged at the inner lower portion of the composting pool, and the punched screen plate is fixed on the grommet.

[0011] Further preferably, the composting device with nanometer membrane for accelerating decomposition as described above, wherein an adjusting valve is installed at the air inlet end of the aeration coil, and the adjusting valve is electrically connected with the controller.

[0012] Further preferably, the composting device with nanometer membrane for accelerating decomposition as described above, wherein a discharge port is arranged at the bottom of the composting pool, and a valve is installed on the discharge port.

[0013] Compared with the prior art, the composting device with nanometer membrane for accelerating decomposition has the following beneficial effects:

[0014] (1) The device uses the air blower to replace the turning machine to regulate and control the ventilation of the pile, which can save energy and reduce consumption, and the energy consumption is greatly reduced, and the power saving rate is more than 30%.

[0015] (2) The device is closed by the composting pool and the nanometer membrane, which not only helps to quickly heat the pile and improve the composting efficiency, but also effectively prevents the emission of odor and greenhouse gas based on the high gas barrier property of the nanometer membrane, inhibits the diffusion of dust and odor, and reduces the harm to the environment.

[0016] (3) The biochar built-in the device has good adsorption and water retention, which can improve the physical and chemical properties of the compost, create more favorable environmental conditions for microbial activity, and thus improve the degree of organic matter degradation and humification. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the device of the utility model;

[0018] Fig. 2 It is a sectional view of the device of the utility model;

[0019] Fig. 3 It is a top view of the punched screen plate in the device of the utility model.

[0020] In the drawing: 1, composting pool; 2, air blower; 3, controller; 4, dome framework; 5, nanometer membrane; 6, punched screen plate; 7, punched cavity; 8, biochar; 9, aeration coil; 10, temperature and humidity sensor; 11, oxygen content sensor; 12, pH sensor; 13, annular clamping groove; 14, sealing ring; 15, grommet; 16, adjusting valve; 17, discharge port; 18, valve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Please refer to Figs. 1-3 The utility model discloses a kind of nanometer membrane composting device, including composting pool 1, air blower 2 and controller 3, the top of composting pool 1 is clamped with dome framework 4, and dome framework 4 is covered with nanometer membrane 5, the inner lower portion of composting pool 1 is laid with punched screen plate 6, and punched screen plate 6 is equipped with punched cavity 7, the inner laying of punched cavity 7 is with biochar 8, the inner laying of composting pool 1 below punched screen plate 6 is with aeration coil 9, and the air inlet end of aeration coil 9 is stretched out composting pool 1 outside, and is connected with air blower 2.This device is closed by composting pool 1 and nanometer membrane 5 as a whole, nanometer membrane 5 has higher gas barrier property, can effectively prevent odor and greenhouse gas leakage, built-in biochar 8 has the microorganism hatching effect due to its porous structure, can promote humification of compost.

[0023] The dome framework 4 is respectively installed with temperature and humidity sensor 10, oxygen content sensor 11 and pH sensor 12, and the air blower 2, temperature and humidity sensor 10, oxygen content sensor 11 and pH sensor 12 are respectively electrically connected with controller 3.The device can automatically monitor the index parameter in compost through the above-mentioned sensor, facilitate to realize scientific management, and help to enhance fertilizer efficiency.

[0024] Specifically, the top of composting pool 1 is provided with annular clamping groove 13, and the dome framework 4 is clamped in annular clamping groove 13.In this embodiment, annular clamping groove 13 is a mounting structure for mounting and fixing the dome framework 4.

[0025] Specifically, a sealing ring 14 is installed in the annular clamping groove 13, and the sealing ring 14 is between the annular clamping groove 13 and the dome framework 4.In this embodiment, the main function of the sealing ring 14 is to seal the gap of the equipment, to prevent fluid or substances from leaking from the inside of the equipment to the outside environment, or from the outside environment to the inside of the equipment.

[0026] Specifically, the inner lower portion of composting pool 1 is provided with a grommet 15, and the punched screen plate 6 is fixed on the grommet 15.In this embodiment, the grommet 15 is a supporting structure, mainly used for mounting and fixing the punched screen plate 6.

[0027] Specific, the air inlet end of the aeration disc pipe 9 is provided with a regulating valve 16, and the regulating valve 16 is electrically connected with the controller 3. In the initial stage of composting, air is delivered by the air blower 2, and oxygen is sent into the composting tank 1 through the aeration disc pipe 9 to increase the oxygen concentration in the compost, which is beneficial to the growth of microorganisms in the compost and the degradation and humification of organic matter. The regulating valve 16 is used for controlling the wind speed.

[0028] Specific, the bottom of the composting tank 1 is provided with a discharge port 17, and the discharge port 17 is provided with a valve 18. In the composting process, the leachate generated is discharged through the discharge port 17 by opening the valve 18.

[0029] In use, the device is closed by the composting tank 1 and the nanometer film 5. The nanometer film 5 is a fluorine-containing new material e-PTFE molecular film on the market, which can be selected to have a certain permeability so that gas and water molecules can quickly pass through, reduce the moisture content of the material, and effectively block the odor overflow, realize environmental protection and odor isolation. The built-in biochar 8 is a porous carbon material on the market, which has good adsorption and water retention, can improve the physical and chemical properties of the compost, slow down the rapid loss of water, improve the pH value of the compost, significantly reduce the loss of carbon in the composting process, and the C / N ratio is above 21 at the end of composting, significantly improving the composting degree, providing suitable physical and chemical conditions for microorganisms of different characteristics, and increasing the diversity of bacterial communities. In addition, the composting process is automatically monitored, that is, the main parameters are monitored by using the temperature and humidity sensor 10, the oxygen content sensor 11 and the pH sensor 12, and feedback is given to the controller 3 for analysis and processing, scientific management, which is helpful to enhance the fertilizer efficiency.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A nano-film composting device for promoting soil rot, comprising a composting tank (1), a blower (2) and a controller (3), characterized in that: The top of the composting tank (1) is clamped with a dome frame (4), and the dome frame (4) is covered with a nano film (5). The lower part of the composting tank (1) is paved with a perforated mesh plate (6), and the perforated mesh plate (6) is provided with a perforated compartment (7), and biochar (8) is laid in the perforated compartment (7). An aeration coil (9) is laid below the perforated mesh plate (6) in the composting tank (1), and the air inlet end of the aeration coil (9) extends out of the composting tank (1) and is connected to the blower (2). A temperature and humidity sensor (10), an oxygen content sensor (11), and a pH sensor (12) are respectively installed in the dome frame (4), and the blower (2), the temperature and humidity sensor (10), the oxygen content sensor (11), and the pH sensor (12) are respectively electrically connected to the controller (3).

2. The pro-corrosion nano-film composting device according to claim 1, characterized in that: An annular slot (13) is provided on the top of the composting tank (1), and the dome frame (4) is snap-connected to the annular slot (13).

3. The pro-corrosion nano-film composting device according to claim 2, characterized in that: A sealing ring (14) is installed in the annular groove (13), and the sealing ring (14) is located between the annular groove (13) and the dome frame (4).

4. The pro-corrosion nano-film composting device according to claim 1, characterized in that: A gasket ring (15) is provided at the inner lower portion of the composting tank (1), and the perforated mesh plate (6) is fixed on the gasket ring (15).

5. The pro-corrosion nano-film composting device according to claim 1, characterized in that: A regulating valve (16) is installed at the air inlet end of the aeration coil (9), and the regulating valve (16) is electrically connected to the controller (3).

6. The pro-corrosion nano-film composting device according to claim 1, characterized in that: A discharge port (17) is provided at the bottom of the composting tank (1), and a valve (18) is installed on the discharge port (17).

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