Livestock and poultry manure composting fermentation system

Abstract

The livestock and poultry manure composting fermentation system comprises an anti-seepage ground, side walls are arranged around the anti-seepage ground, an air distribution groove is formed in the anti-seepage ground, a cover plate is arranged on the air distribution groove, and through holes are formed in the cover plate; hollow rotating shafts are arranged on the side walls on the two sides, hollow stirring blades are arranged on the rotating shafts, air spraying holes are formed in the stirring blades, and the rotating shafts and the air distribution groove are communicated with an air blower through pipelines. The aeration pipes are used for pressurizing and ventilating the gas distribution grooves, the adjacent gas distribution grooves are arranged at equal intervals, each gas distribution groove is covered with the cover plate with the gas spraying holes, the rotating shafts arranged between the side walls are combined, and the rotating shafts and the stirring blades are hollow and are matched with the gas spraying holes in the stirring blades; livestock and poultry manure in the containing cavity can be rapidly stirred, and gas can be blown into the containing cavity. Meanwhile, livestock and poultry manure and auxiliary materials are stacked above the bottom of the gas distribution groove, at least one layer of semi-permeable membrane covers the surface of a pile body, clean gas such as steam and carbon dioxide is filtered out, and peculiar smell is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of aerobic composting treatment of organic waste, and more specifically, to a livestock and poultry excrement composting fermentation system. Background Art

[0002] Livestock and poultry manure, garden waste or other organic waste such as mushrooms, Chinese medicine residues, tea residues, etc. are rich in biological organic matter. These organic wastes are usually treated by aerobic fermentation to produce fertilizers (composting) at home and abroad, realizing resource utilization while achieving solid waste treatment.

[0003] The feces that have been rendered harmless contain a large number of parasites, pathogenic microorganisms, heavy metals and other harmful substances. In particular, the additives and trace elements in the feed of intensive farms in rural areas that are not easily absorbed by livestock and poultry will be excreted with the feces.

[0004] The common composting methods include windrow type, mechanical turning type, compost box type and farmers' traditional composting. The investment in windrow type and mechanical turning type composting facilities is relatively high, and nitrogen-containing wastes such as livestock and poultry manure are often difficult to control odor, and the factory environment is difficult to maintain. Compost box type mechanized composting equipment can effectively solve the odor problem, but the investment is often high, and the processing scale of a single set is limited, which is a problem for equipment maintenance in rural areas.

[0005] Although various processes have been explored in the implementation of livestock and poultry manure recycling projects across the country, they are unable to effectively improve existing technical problems in terms of odor control, composting cycle, product quality, cost control, etc., especially some animal manure with high water content is more difficult to treat, and the wastewater generated cannot be absorbed in rural areas or the treatment cost is high. Random discharge causes serious water pollution. Therefore, there is still a lack of successful application cases in engineering projects. Utility Model Content

[0006] The utility model provides a livestock and poultry manure composting fermentation system, which is used to solve the problems of insufficient organic matter degradation, high facility construction investment cost, poor product maturity and difficulty in treating livestock and poultry manure leachate in the existing livestock and poultry manure treatment technology.

[0007] According to one aspect of the utility model, a livestock and poultry manure composting fermentation system is provided, comprising an impermeable floor, the impermeable floor is surrounded by side walls, an air distribution groove is opened on the impermeable floor, a cover plate is provided on the air distribution groove, and a through hole is provided on the cover plate; a hollow rotating shaft is installed on the side walls on both sides, a hollow stirring blade is provided on the rotating shaft, and an air jet hole is provided on the stirring blade, and the rotating shaft and the air distribution groove are connected to a blower through a pipeline.

[0008] Preferably, based on the above scheme, it further comprises a covering film, wherein the covering film covers the side wall to form a receiving cavity.

[0009] Preferably, based on the above solution, the covering membrane is a semi-permeable covering membrane, and a temperature probe and a wind pressure probe are installed in the accommodating cavity.

[0010] Preferably, based on the above scheme, the anti-seepage ground is inclined, and a liquid collecting well is provided at a low position of the anti-seepage ground.

[0011] Preferably, based on the above solution, an electromagnetic control valve is provided at the connection between the rotating shaft and each of the stirring blades.

[0012] Preferably, based on the above solution, there are multiple air distribution grooves which are arranged at intervals.

[0013] The utility model is a livestock and poultry manure composting fermentation system, which pressurizes and ventilates the air distribution grooves through the aeration pipeline, and the adjacent air distribution grooves are arranged at equal intervals. Each air distribution groove is covered with a cover plate with air jet holes. At the same time, the rotating shaft and the stirring blade are hollow, and the air jet holes on the stirring blade can be used to quickly stir and blow gas into the livestock and poultry manure in the accommodating cavity. At the same time, livestock and poultry manure and auxiliary materials are piled up on the bottom of the air distribution groove, and at least one layer of semipermeable membrane is covered on the surface of the pile body to filter out clean gases such as water vapor and carbon dioxide to control odor. The air distribution groove at the bottom of the fermentation tank is inclined longitudinally to the liquid collection well, and the two sides of the bottom of the tank are inclined toward the air distribution groove. Finally, the leachate enters the liquid collection well, and then is sprayed back into the pile body for circulation through the leachate reflux pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of the livestock and poultry manure composting and fermentation system of the utility model;

[0016] Figure 2 It is a cross-sectional view of the livestock and poultry manure composting and fermentation system of the utility model;

[0017] Figure 3 For the utility model Figure 2 A magnified view of part A;

[0018] Figure 4 It is a structural schematic diagram of the cover plate of the utility model;

[0019] Figure 5It is a side view of the livestock and poultry manure composting and fermentation system of the utility model;

[0020] Figure 6 It is a structural diagram of the rotating shaft of the utility model;

[0021] Figure 7 It is a cross-sectional view of the rotating shaft of the utility model;

[0022] Description of Figure Numbers:

[0023] Anti-seepage ground 1, covering film 11, temperature probe 13, wind pressure probe 14, side wall 2, air distribution groove 3, cover plate 31, through hole 32, rotating shaft 4, stirring blade 41, air jet hole 42, blower 43, electromagnetic control valve 44, liquid collecting well 5. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0026] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0027] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0028] In the embodiments shown in the drawings, the directions (such as up, down, left, right, front and back) used to explain the structure and movement of the various components of the present invention are not absolute but relative. These descriptions are appropriate when the components are in the positions shown in the drawings. If the description of the positions of the components changes, the directions also change accordingly.

[0029] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0031] See also Figure 1 , and combined with Figure 2 and Figure 5 As shown, a livestock and poultry manure composting and fermentation system of the utility model comprises an impermeable ground 1, and side walls 2 are arranged around the impermeable ground 1, and the side walls 2 and the impermeable ground 1 are arranged to form a concave structure for accommodating livestock and poultry manure.

[0032] The anti-seepage floor 1 of the utility model is provided with an air distribution groove 3, a cover plate 31 is provided on the air distribution groove 3, and a through hole 32 is provided on the cover plate 31. Figure 3 and Figure 4 As shown; a hollow shaft 4 is mounted on the side walls 2 on both sides, a hollow stirring blade 41 is provided on the shaft 4, a jet hole 42 is provided on the stirring blade 41, the shaft 4 and the air distribution groove 3 are connected to the blower 43 through a pipeline, as shown Figure 6 and Figure 7 shown.

[0033] When in use, the blower 43 pressurizes and ventilates the air distribution trough 3 and the rotating shaft 4 through the aeration pipeline to perform aeration, so that the remaining biodegradable organic matter in the livestock and poultry manure can be quickly degraded. The aeration time for each time is T1, the aeration interval time is T2, the aeration number of times per day is N1, and the aeration days are continuous for MI days; after the continuous aeration days are M1 days, air is again transported to the inside of the mature pile through the aeration pipeline for aeration, so as to reduce the moisture content of the stale pile to below W. The aeration time for each time is T3, the aeration interval time is T4, the aeration number of times per day is N2, and the aeration days are continuous for M2 days.

[0034] In order to remove the odor generated during the composting and fermentation of livestock and poultry manure and filter out clean gases such as water vapor and carbon dioxide, the utility model further includes a covering film 11 , which covers the side wall 2 to form a receiving cavity 12 .

[0035] Preferably, the covering film 11 is a semi-permeable covering film 11 , and a temperature probe 13 and a wind pressure probe 14 are installed in the accommodating cavity 12 .

[0036] The utility model also makes the anti-seepage floor 1 inclined, and provides a liquid collecting well 5 at a low position of the anti-seepage floor 1 to collect the generated liquid.

[0037] Preferably, the utility model is provided with an electromagnetic control valve 44 at the connection between the rotating shaft 4 and each stirring blade 41, so as to realize separate and independent aeration of different positions, and the air distribution grooves 3 are multiple and spaced apart, such as Figure 6 and Figure 7 shown.

[0038] The utility model is a livestock and poultry manure composting fermentation system, which pressurizes and ventilates the air distribution groove 3 through the aeration pipeline, and the adjacent air distribution grooves 3 are arranged at equal intervals. Each air distribution groove 3 is covered with a cover plate 31 with an air jet hole 42. At the same time, in combination with the rotating shaft 4 set between the side walls 2, the rotating shaft 4 and the stirring blade 41 are hollow, and the air jet hole 42 on the stirring blade 41 can quickly stir and blow gas into the livestock and poultry manure in the accommodating cavity. At the same time, livestock and poultry manure and auxiliary materials are piled up on the bottom of the air distribution groove 3, and at least one layer of semipermeable membrane is covered on the surface of the pile body to filter out clean gases such as water vapor and carbon dioxide to control odor. The air distribution groove 3 at the bottom of the fermentation tank is inclined longitudinally to the liquid collection well 5, and the two sides of the tank bottom are inclined to the air distribution groove 3. Finally, the leachate enters the liquid collection well 5, and then is sprayed back into the pile body for circulation through the leachate reflux pipeline.

[0039] Compared with the prior art, the livestock and poultry manure composting fermentation system of the utility model has the following advantages:

[0040] 1. The utility model adopts the design of covering film 11 combined with air distribution groove 3 and rotating shaft 4, which can increase the temperature in a short time, accelerate the degradation and stability of livestock and poultry manure, and enhance the maturity of materials.

[0041] 2. Effectively reduce the moisture content of the pile, recycle and spray the leachate, and control the wastewater generated by livestock and poultry manure.

[0042] 3. Allow the mixed materials to undergo high-temperature aerobic fermentation under a semi-permeable membrane to control odor leakage and eliminate it on-site, without the need to build a separate deodorization system.

[0043] Finally, the method of this application is only a preferred implementation scheme and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A livestock and poultry manure composting and fermentation system, characterized in that: It includes an anti-seepage floor, which is surrounded by side walls, an air distribution groove is opened on the anti-seepage floor, a cover plate is provided on the air distribution groove, and a through hole is provided on the cover plate; a hollow rotating shaft is installed on the side walls on both sides, a hollow stirring blade is provided on the rotating shaft, and an air jet hole is provided on the stirring blade, and the rotating shaft and the air distribution groove are connected to a blower through a pipeline.

2. The livestock and poultry manure composting fermentation system according to claim 1, characterized in that: It also includes a covering film, wherein the covering film covers the side wall to form a receiving cavity.

3. The livestock and poultry manure composting fermentation system according to claim 2, characterized in that: The covering film is a semi-permeable covering film, and a temperature probe and a wind pressure probe are installed in the accommodating cavity.

4. The livestock and poultry manure composting fermentation system according to claim 1, characterized in that: The anti-seepage ground is inclined, and a liquid collecting well is arranged at a low position of the anti-seepage ground.

5. The livestock and poultry manure composting fermentation system according to claim 1, characterized in that: An electromagnetic control valve is arranged at the connection point between the rotating shaft and each stirring blade.

6. The livestock and poultry manure composting fermentation system according to claim 1, characterized in that: The air distribution grooves are multiple and arranged at intervals.

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