A livestock manure treatment odor purification device

Abstract

The utility model belongs to the field of livestock and poultry breeding technology, especially a kind of foul gas purification equipment for livestock and poultry manure treatment. Solve the problem that the single process treatment effect is not good due to the fast odor flow rate in the existing treatment process, realize efficient treatment of foul gas, achieve standard discharge, equipment structure is simple, and the operating cost is low. Two independent closed upper box, lower box are equipped in purification box, operation window is sequentially arranged in upper box, and back is respectively provided with operation window, left purification body section is communicated with air inlet, right purification body section is communicated with air outlet;It can deal with the complex component foul gas generated by livestock and poultry manure fermentation, overcome the problem that single process cannot be fully treated, ensure that foul gas treatment is more thorough. Give consideration to efficient treatment and economic practicality, applicable to the popularization and application of various farms, to improve breeding environment, promote the green development of animal husbandry has important significance.

Description

Technical Field

[0001] This utility model belongs to the field of livestock and poultry breeding technology, and in particular relates to an odor purification device for livestock and poultry manure treatment. Background Technology

[0002] In large-scale livestock and poultry farming, the fermentation treatment of manure is a crucial step in realizing the resource utilization of waste. However, this process inevitably produces a large amount of odor. These odorous gases are extremely complex, containing ammonia, hydrogen sulfide, volatile fatty acids, indole, skatole, and other harmful substances. They not only have a strong, pungent odor but also pollute the surrounding atmospheric environment. If they are not effectively treated or are discharged directly without meeting the standards, they are likely to trigger strong complaints from nearby residents and may even lead to mass environmental disputes, seriously hindering the sustainable development of the livestock industry.

[0003] Currently, existing treatment processes for odors generated during livestock and poultry manure disposal have significant limitations and shortcomings. Constrained by cost control pressures and inherent technological deficiencies, most farms only employ simple deodorization methods for preliminary treatment before direct emission. Some small and medium-sized farms even neglect treatment altogether, resulting in odor emission concentrations far exceeding national standards and failing to meet the stringent requirements of environmental protection departments for odor pollutant compliance.

[0004] Specifically, the shortcomings of existing processing technologies are mainly reflected in the following aspects: Insufficient processing timeliness: The odorous gas produced during the fermentation of manure flows at a relatively fast speed, while existing treatment equipment often lacks sufficient retention space and reaction time, resulting in the odor and treatment medium not being able to fully contact and react, and a large amount of untreated odor escapes directly.

[0005] Limited efficiency of single process: Relying on a single spray treatment can only remove some water-soluble odor components, and it is difficult to effectively treat volatile organic compounds with strong hydrophobicity, thus failing to achieve purification of all components to meet standards.

[0006] Therefore, developing a high-efficiency, low-cost, and easy-to-operate odor treatment equipment for livestock and poultry manure is of great practical significance for solving the odor pollution problem in farms, improving the breeding environment, alleviating neighborhood conflicts, and promoting the green and healthy development of animal husbandry. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides an odor purification device for livestock and poultry manure treatment, which solves the problems of insufficient treatment due to the high flow rate of odor gas and poor treatment effect of single processes in existing treatment processes. It achieves efficient treatment of odor gas, meets emission standards, and has a simple structure and low operating cost.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An odor purification device for treating livestock and poultry manure includes a purification box containing two independent, enclosed upper and lower chambers. The upper chamber contains sequentially arranged operating windows on its back. The left purification section is connected to an air inlet, and the right purification section is connected to an air outlet. Odor gas passes sequentially through the left, middle, and right purification sections via the air inlet and is discharged through the air outlet. The lower chamber contains sequentially arranged left, middle, and right liquid sections, each connected to a spray system and respectively connected to the left, middle, and right purification sections.

[0009] Furthermore, support grids are installed in the left purification section, the middle purification section, and the right purification section, and purification packing is placed on top of the support grids.

[0010] Furthermore, an odor channel I is formed between the left purification section and the middle purification section, and an odor channel II is formed between the middle purification section and the right purification section; the odor passes through the left purification section, through the odor channel I, through the middle purification section, through the odor channel II, and then through the right purification section.

[0011] Furthermore, the spraying system includes a spraying water pump, the water inlet of which is connected to one end of the liquid inlet pipe, the water outlet of which is connected to one end of the liquid outlet pipe, and the other end of the liquid outlet pipe is connected to a nozzle.

[0012] Furthermore, the other end of the liquid inlet pipe is located in the left liquid section, the middle liquid section, and the right liquid section, respectively; the nozzle is located in the left purification body section, the middle purification body section, and the right purification body section, respectively, and is located above the purification packing.

[0013] Furthermore, the supporting grid includes a grid seat and a grid plate detachably installed therein.

[0014] Furthermore, the grille seat includes a seat frame and a partition on the inner side of the seat frame; the grille plate includes a plate frame and mesh holes are evenly distributed on the inner side of the plate frame; the grille plate is placed inside the grille seat and the plate frame is supported by the partition.

[0015] Furthermore, the back sides of the left liquid section, the middle liquid section, and the right liquid section are respectively connected to auxiliary liquid sections, and pH / ORP meters are respectively installed in the auxiliary liquid sections.

[0016] Furthermore, each of the auxiliary liquid sections is connected to an external automatic liquid dispenser.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The equipment has a simple structure, which not only reduces manufacturing costs and initial investment, but also has a low failure rate, reducing subsequent maintenance costs. Furthermore, different purification fillers can be selected for targeted treatment based on the odor composition, avoiding the indiscriminate use of purification fillers and effectively saving costs. This solves the problem of high investment and operating costs associated with existing multi-process combination equipment. Because the particle sizes of fillers used in odor treatment vary, traditional fixed-mesh grids often only accommodate specific filler sizes, becoming inflexible when faced with diverse filler types. However, the split-type support grid of this application, by replacing the grid plate with the corresponding mesh size, can easily handle fillers of different particle sizes, freeing the equipment from limitations on a single filler type and greatly expanding its applicability.

[0018] 2. Through a multi-stage treatment design, it can cope with the complex odor components produced by the fermentation of livestock and poultry manure, overcoming the problem that a single process cannot fully treat the odor, and ensuring more thorough odor treatment. In addition, the equipment space can be flexibly designed according to the amount of odor, which can reduce the flow rate of odor and increase the treatment time, solving the problem of insufficient treatment caused by high flow rate, greatly improving treatment efficiency, and ultimately achieving odor emission standards.

[0019] 3. It combines efficient processing with economic practicality, making it suitable for promotion and application in various types of farms. It is of great significance for improving the breeding environment and promoting the green development of animal husbandry. Attached Figure Description

[0020] Figure 1 This is the front view of the present utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is an exploded view of the support grid of this utility model; Figure 5 This utility model Figure 4 AA view in the middle. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0023] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort prior to the description are within the scope of protection of this utility model.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 utility model.

[0026] like Figure 1-5 As shown: An odor purification device for treating livestock and poultry manure includes a purification box 1. The purification box 1 has two independent and enclosed upper boxes 11 and lower boxes 12. The upper box 11 has a left purification section 111, a middle purification section 112, and a right purification section 113 arranged in sequence, and each has an operation window 13 on its back. The left purification section 111 is connected to an air inlet 14, and the right purification section 113 is connected to an air outlet 15. Each purification section is an independent area. An odor channel I 4 is formed between the left purification section 111 and the middle purification section 112, and an odor channel II 5 is formed between the middle purification section 112 and the right purification section 113. The path of the odor is through the left purification section 111, through the odor channel I 4, through the middle purification section 112, through the odor channel II 5, and through the right purification section 113.

[0027] The odorous gas enters through the air inlet 14 and passes sequentially through the left purification section 111, the middle purification section 112, and the right purification section 113 before being discharged through the air outlet 15; combined with Figure 1 The middle arrow indicates the flow path of the odor within the purification chamber.

[0028] The lower chamber 12 is provided with a left liquid section 121, a middle liquid section 122, and a right liquid section 123 in sequence (the left section adds sulfuric acid, the middle section adds clean water, and the right section adds sodium hypochlorite). The left liquid section 121, the middle liquid section 122, and the right liquid section 123 are respectively connected to the spray system 6 and are respectively connected to the left purification section 111, the middle purification section 112, and the right purification section 113.

[0029] Drain valves can be installed at the bottom of each liquid section, and level sensors can be installed at the top.

[0030] Support grids 2 are installed in the left purification section 111, the middle purification section 112, and the right purification section 113, respectively. Purification packing materials 3 are placed above the support grids 2 (the left section uses honeycomb activated carbon packing, the middle section uses modified molecular sieve packing, and the right section uses polyurethane sponge packing). Liquid is delivered to the corresponding three purification sections via a spray system 6 to spray the purification packing materials 3. The odorous gases move sequentially from below the packing materials upwards, fully contacting the liquid within the packing materials for absorption. Figure 1 The path indicated by the middle arrow.

[0031] Furthermore, the sprinkler system 6 includes three corrosion-resistant sprinkler pumps 61 (made of 316 stainless steel, with a head of 15m and a flow rate of 20m³ / h). 3 / h), each water pump corresponds to one purification section.

[0032] The inlet of the spray pump 61 is connected to the liquid inlet pipe 62 (UPVC material, diameter 50mm) through a flange. A Y-type filter (filtration accuracy 100 mesh) is installed at the end of the pipe. The other end of the liquid inlet pipe 62 is inserted 30cm below the liquid surface of the left liquid section 121, the middle liquid section 122, and the right liquid section 123 respectively to ensure the purity of the extracted liquid.

[0033] The outlet of the spray pump 61 is connected to the liquid outlet pipeline 63 (seamless steel pipe with an external anti-corrosion coating). A pressure transmitter (range 0-0.6MPa) and an electric regulating valve are installed along the pipeline.

[0034] The other end of the liquid outlet pipe 63 extends to the top of the corresponding purification section, and is connected to multiple spiral nozzles 64 (made of polytetrafluoroethylene, with a spray angle of 90° and a flow rate of 1.5m³) via branch pipes. 3 / h), nozzles 64 are evenly distributed 50cm above the purification packing 3 to ensure that the spray liquid evenly covers the surface of the packing.

[0035] Furthermore, the supporting grid 2 is a core component used to fix the purification packing 3 inside each purification section (left purification section 111, middle purification section 112, and right purification section 113). It is installed on the inner wall of each purification section and needs to withstand the load of the purification packing itself and the impact of the spray liquid, while ensuring that the odor passes smoothly through the packing layer. At the same time, it is easy to flexibly replace the appropriate grid plate according to the size of the packing particles. The supporting grid 2 includes a grid seat 21 and a grid plate 22 that can be detachably installed inside it.

[0036] The grille base 21 includes a base frame 211 and a partition 212 on the inner side of the base frame 211. The partitions 212 are evenly distributed along the length and width directions on the inner side of the base frame 211 (i.e., the side in contact with the grille plate). In addition, the top of the partition 212 is 10mm lower than the top of the base frame 211, forming a stepped structure, which facilitates the positioning and installation of the grille plate 22.

[0037] The seat frame 211 is made of Q235 carbon steel and is hot-dip galvanized (zinc layer thickness ≥85μm) to improve corrosion resistance. The four sides of the seat frame 211 are fixed to the inner wall of each purification section by welding.

[0038] The grating panel 22 includes a frame 221, with mesh holes 222 evenly distributed on the inner side of the frame 221. The frame 221 is made of 316 stainless steel (6mm thick), and its overall size is 5mm smaller than the seat frame 211, ensuring that it can be smoothly placed into the grating seat 21 without significant wobbling. The four corners of the frame 221 can be rounded (10mm radius) to avoid scratching operators or the housing during installation.

[0039] The inner surface of the frame 221 is laser-cut to create uniformly distributed grid holes 222. The size of the grid holes is designed according to the particle size of the filler in the corresponding purification section: the left purification section is suitable for honeycomb activated carbon filler (particle diameter ≥ 10 mm), the grid holes are square with a side length of 8 mm and a hole spacing of 2 mm; the middle purification section is suitable for modified molecular sieve filler (particle diameter ≥ 5 mm), the grid holes are circular with a diameter of 4 mm and a hole spacing of 1.5 mm; the right purification section is suitable for polyurethane sponge filler (block size ≥ 20 mm), the grid holes are rectangular with a length of 15 mm, a width of 10 mm, and a hole spacing of 3 mm.

[0040] The grid holes are arranged in a matrix pattern to ensure no leakage during packing installation. At the same time, the gas flow area accounts for more than 60% of the total area of ​​the grid plate, reducing airflow resistance.

[0041] The grating plate 22 is placed inside the grating seat 21, and the plate frame 221 is supported by the partition plate 212. Two stainless steel handles (15cm long and 10mm in diameter) are symmetrically provided at both ends of the outer side wall of the plate frame 221 to facilitate the loading and unloading of the grating plate by the operator. A 1mm thick nitrile rubber pad is pasted at the bottom of the plate frame 221 where it contacts the partition plate 212 to enhance friction and prevent the grating plate from shifting under the impact of the spray.

[0042] Furthermore, the back of the left liquid section 121, the middle liquid section 122, and the right liquid section 123 are respectively connected to an auxiliary liquid section 8, and a pH / ORP meter 7 is installed in the auxiliary liquid section 8.

[0043] In segmented odor purification spray systems, pH meters and ORP meters are the core monitoring devices for achieving precise control of reagents and ensuring treatment efficiency. Through precise monitoring and linkage control of pH / ORP meters, the system's reagent consumption can be reduced by 15%-20%, the comprehensive removal rate of odorous gases can be stabilized at over 90%, and the cost of manual inspection can be significantly reduced, achieving automated and efficient operation.

[0044] Furthermore, each of the auxiliary liquid sections 8 is connected to an external automatic liquid dispenser 9.

[0045] Compared to traditional fixed-point dosing, the external automatic dosing unit 9 achieves closed-loop control through real-time feedback from the pH / ORP meter, keeping the dosing error within ±3%, reducing the problems of overdosing or underdosing. The external design facilitates individual disassembly and maintenance, allowing for cleaning or component replacement without system shutdown. Combined with the automatic replenishment function, it reduces the frequency of manual replenishment (only 1-2 checks per month). The dosing unit is connected to the liquid section via a flexible hose, avoiding vibration transmission caused by rigid connections. Simultaneously, a pressure sensor in the pipeline automatically shuts down the metering pump and triggers an alarm when the pipeline blockage pressure exceeds 0.3 MPa, preventing pipeline rupture. Through the coordinated operation of the external automatic dosing unit and the pH / ORP meter, the system's reagent utilization rate can be further improved by 10%-15%, while ensuring parameter stability in each reaction section, providing reliable reagent support for the efficient treatment of odorous gases. The external automatic heater 9 can be equipped with the HD-300FC touchscreen automatic timed and quantitative dosing unit from Beijing Xinsheng Zhuorui Technology Co., Ltd.

[0046] In use, the collected odor enters the left purification section 111 of the purification chamber 1 through the air inlet 14, passing from bottom to top through the purification packing 3. A nozzle 64 is located above the purification packing 3. The spray pump 61 evenly sprays the solution from the left liquid section 121 onto the purification packing 3 through the nozzle 64. The purification packing 3 ensures full contact between the odor and the sprayed solution. The size design of the purification chamber 1 ensures that the high-speed gas flow in the pipeline slows down after entering the purification chamber 1, allowing sufficient reaction and absorption time for the odor and the deodorizing solution. After being sprayed through the left purification section 111... The deodorized odor enters the middle purification section 112 through odor channel I4 and passes through the purification packing 3 inside from bottom to top (the steps in the middle purification section 112 are the same as those in the left purification section 111, and will not be described again); the deodorized odor after passing through the middle purification section 112 enters the right purification section 113 through odor channel II5 and passes through the purification packing 3 inside from bottom to top (the steps in the right purification section 113 are the same as those in the left purification section 111, and will not be described again); the odor after three stages of purification is discharged from the outlet 15. Different deodorizing agents are added to the left liquid section 121, middle liquid section 122, and right liquid section 123 according to the different odor components in each stage, and different purification fillers are added to the left purification section 111, middle purification section 112, and right purification section 113. The solution concentration in each stage is detected by a pH / ORP meter. If the concentration is lower than the design concentration, the external automatic dosing device 9 can automatically add the prepared agent into the corresponding liquid section to ensure the deodorization effect.

[0047] The grid plate 22 in the support grid 2 has multiple sets, each with different mesh hole sizes 222. Select the appropriate grid plate 22 according to the size of the purification packing, open the operation window 13, and insert the grid plate 22 along the inner side of the seat frame 211 so that the bottom of the frame 221 is completely in contact with the partition 212 and the rubber pad is in close contact with the partition 212 to complete the positioning. At this time, the top of the grid plate 22 is flush with the top of the seat frame 211 to ensure that the purification packing can be laid stably on it.

[0048] When it is necessary to change the type of purification packing, first empty the old packing, and the operator takes the grid plate 22 out of the grid seat 21 by pulling the handle, and then puts in the grid plate 22 that is compatible with the new purification packing. The whole process does not require the assistance of tools and can be completed by one person. The replacement time is ≤5 minutes.

[0049] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above embodiments. Those skilled in the art can make various modifications or variations to the present invention without departing from the technical concept of the present invention, and such modifications or variations naturally fall within the protection scope of the present invention.

Claims

1. An odor purification device for treating livestock and poultry manure, characterized in that: Includes a purification box (1), which has two independent and closed upper boxes (11) and lower boxes (12). The upper boxes (11) are arranged in sequence and have operation windows (13) on the back. The left purification section (111) is connected to the air inlet (14), and the right purification section (113) is connected to the air outlet (15). The odor passes through the inlet (14) in sequence through the left purification section (111), the middle purification section (112), and the right purification section (113) and is discharged through the outlet (15); The lower housing (12) is provided with a left liquid section (121), a middle liquid section (122), and a right liquid section (123) in sequence. The left liquid section (121), the middle liquid section (122), and the right liquid section (123) are respectively connected to a spray system (6) and respectively connected to the left purification body section (111), the middle purification body section (112), and the right purification body section (113).

2. The odor purification equipment for livestock and poultry manure treatment according to claim 1, characterized in that: Support grids (2) are installed in the left purification section (111), the middle purification section (112), and the right purification section (113), and purification filler (3) is placed on top of the support grids (2).

3. The odor purification equipment for livestock and poultry manure treatment according to claim 2, characterized in that: Odor channel I (4) is formed between the left purification section (111) and the middle purification section (112), and odor channel II (5) is formed between the middle purification section (112) and the right purification section (113). The odor passes through the left purification section (111), through odor channel I (4), through the middle purification section (112), through odor channel II (5), and through the right purification section (113).

4. The odor purification equipment for livestock and poultry manure treatment according to claim 3, characterized in that: The spray system (6) includes a spray water pump (61), the water inlet of the spray water pump (61) is connected to one end of the liquid inlet pipe (62), the water outlet of the spray water pump (61) is connected to one end of the liquid outlet pipe (63), and the other end of the liquid outlet pipe (63) is connected to a nozzle (64).

5. The odor purification equipment for livestock and poultry manure treatment according to claim 4, characterized in that: The other end of the liquid inlet pipe (62) is located in the left liquid section (121), the middle liquid section (122), and the right liquid section (123), respectively; The nozzles (64) are located in the left purification section (111), the middle purification section (112), and the right purification section (113) respectively, and are located above the purification packing (3).

6. The odor purification equipment for livestock and poultry manure treatment according to claim 2, characterized in that: The supporting grid (2) includes a grid seat (21) and a grid plate (22) that can be detachably installed therein.

7. The odor purification equipment for livestock and poultry manure treatment according to claim 6, characterized in that: The grille seat (21) includes a seat frame (211) and a partition (212) is provided on the inner side of the seat frame (211); The grating plate (22) includes a plate frame (221) and the inner side of the plate frame (221) is evenly distributed with mesh holes (222). The grating plate (22) is placed inside the grating seat (21), and the plate frame (221) is supported by the partition plate (212).

8. The odor purification equipment for livestock and poultry manure treatment according to any one of claims 1-7, characterized in that: The back of the left liquid section (121), the middle liquid section (122), and the right liquid section (123) are respectively connected to an auxiliary liquid section (8), and a pH / ORP meter (7) is installed in the auxiliary liquid section (8).

9. The odor purification equipment for livestock and poultry manure treatment according to claim 8, characterized in that: Each of the auxiliary liquid sections (8) is connected to an external automatic liquid dispenser (9).

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