A farm emission and pollution reduction device and method

Abstract

The application discloses a farm emission-reducing and pollution-reducing equipment and method, and relates to the field of farm emission-reducing and pollution-reducing equipment. The equipment comprises a fermentation box, a mixing assembly and a heat preservation assembly. The top end of the fermentation box is provided with a mounting platform. The mixing assembly comprises a moving box arranged on the mounting platform, two mixing arms arranged on the lower bottom surface of the moving box, a turning and throwing component arranged on each mixing arm, and a propelling motor for providing power for the moving box. The heat preservation assembly comprises a fan-shaped plate arranged on the mounting platform, a connecting cross beam and a driving arm clamped on the fan-shaped plate, a driving motor for providing power for the driving arm, and a heat preservation film arranged on the connecting cross beam. The equipment has a reasonable structure design. The mixing arms capable of swinging in the fermentation box and the turning and throwing components capable of rotating on the mixing arms are utilized to stir and mix the breeding manure, fermentation bacteria and auxiliary materials, so that the fermentation efficiency of the breeding manure is improved, the emission and pollution of the breeding manure are reduced, the breeding environment is purified, and certain economic benefits are achieved.

Description

Technical Field

[0001] This invention relates to the field of livestock manure treatment technology, specifically to a livestock farm emission reduction and pollution reduction device and method. Background Technology

[0002] The main pollutants in livestock manure include malodorous gases, nitrogen and phosphorus, drugs, additives, harmful pathogens and heavy metals. The environmental pollution caused by intensive dairy farming is a bottleneck restricting the development of dairy farming.

[0003] However, dairy cow manure treatment is still in the exploratory stage. Farm enterprises use methods such as dry-wet separation composting, fermentation bed method, biogas digester method, and combination of multiple methods to treat manure. However, these methods all have problems such as low treatment efficiency, inability to process large amounts of manure, resulting in manure accumulation or the use of uncomposted manure in farmland, causing secondary pollution to the soil. Moreover, existing fermentation equipment for livestock manure generally suffers from low fermentation efficiency and incomplete fermentation, which means that the environmental problems caused by livestock manure cannot be properly treated, and the random discharge of livestock manure also leads to resource waste. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a device and method for reducing emissions and pollution in livestock farms.

[0005] The technical solution of the present invention is: a pollution reduction and emission reduction device for a livestock farm, comprising a fermentation tank, a mixing component disposed inside the fermentation tank, and a heat preservation component disposed at the top of the fermentation tank; an installation platform is provided at the top of the fermentation tank;

[0006] The hybrid assembly includes a movable box movably mounted on the mounting platform, two hybrid arms mounted on the underside of the movable box, a tumbling component mounted on each of the two hybrid arms, and a propulsion motor mounted on the mounting platform that provides power to the movable box.

[0007] The insulation component includes a sector plate set at the top of the installation platform, a connecting beam slidably clipped onto the sector plate, a drive arm rotatably clipped onto the sector plate, a drive motor that provides power to the drive arm, a take-up sleeve set on the installation platform, and an insulation film set on the connecting beam.

[0008] Furthermore, the turning and throwing component includes several turning and throwing wheels that are equidistantly distributed on the side wall of the mixing arm via rotating shafts, and a rotary motor that is installed on the side wall of the mixing arm and provides power to the rotating shafts; each rotating shaft passes through the mixing arm and is fitted with a transmission sprocket; the output shaft of the rotary motor passes through the mixing arm and is fitted with a main sprocket, and the main sprocket is connected to each transmission sprocket via a chain drive;

[0009] The circumferentially equidistantly distributed tumbling teeth of the tumbling wheel;

[0010] The output end of the propulsion motor is equipped with a propulsion screw that is threadedly connected to the moving box.

[0011] Instructions: During use, the propulsion motor drives the propulsion screw to rotate, which in turn moves the moving box and the turning component inside the fermentation tank. During the movement of the turning component, the rotary motor drives the main sprocket to rotate, which in turn drives the corresponding turning wheels and turning teeth to rotate, thus turning and mixing the livestock manure and fermentation agent, improving the fermentation efficiency of the manure.

[0012] Furthermore, each of the two hybrid arms is equipped with a helical gear at its top end, which is rotatably engaged with the bottom surface of the moving box; the moving box is equipped with a swing motor, and the output end of the swing motor is equipped with a helical gear worm gear that meshes with the two helical gears respectively.

[0013] Explanation: The swing motor drives the helical gear worm to rotate, causing the two helical gears to rotate in opposite directions, which in turn drives the corresponding mixing arm to open and close continuously. This allows for adjustment of the mixing path of the mixing arm, which helps to improve the uniformity of mixing between the fermentation agent and the livestock manure.

[0014] Furthermore, a plug rod is provided at the bottom of the helical gear, and a connecting sleeve is provided at the top of the mixing arm to slide and engage with the plug rod. A compression spring that abuts against the plug rod is provided inside the connecting sleeve.

[0015] Note: During the rotation of the mixing arm, a compression spring is used to keep the bottom of the mixing arm in close contact with the inner wall of the fermentation tank, thereby avoiding the formation of mixing dead zones.

[0016] Furthermore, the side wall of the hybrid arm is provided with mounting sleeves that are respectively fitted onto the outside of each rotating shaft, and each mounting sleeve has several shearing teeth evenly distributed in the circumferential direction.

[0017] Explanation: When the turning wheel and turning teeth rotate, the combined action of the shearing teeth and turning teeth cuts and crushes the straw and other debris in the manure, which helps to improve the fermentation efficiency of livestock manure.

[0018] Furthermore, both ends of the bottom surface of the mobile box are provided with annular scrapers that abut against the inner wall of the fermentation box, and wedge-shaped platforms are provided on both sides of the annular scrapers.

[0019] Note: During the movement of the mobile box, the wedge-shaped platform on the ring scraper can be used to remove the manure and fermentation agent at the bottom of the fermentation box, preventing the fermentation agent from accumulating at the bottom of the fermentation box and affecting its effectiveness.

[0020] Furthermore, the annular scraper is hollow inside, and a hot air nozzle is installed on the annular scraper. A hot air blower connected to the hot air nozzle is installed on the side wall of the fermentation box.

[0021] Explanation: Using a hot air blower to introduce heated air into the livestock manure through hot air nozzles to heat and treat the manure helps to shorten the fermentation cycle of the manure and improve production efficiency.

[0022] Furthermore, a partition screen is provided at the top of the hot air nozzle, a connecting shaft is provided through the partition screen, and a cleaning scraper located on the upper surface of the partition screen is sleeved on the connecting shaft; a flow channel is provided through the side wall of the hot air nozzle, and a rotating blade sleeved on the connecting shaft is provided inside the flow channel.

[0023] Explanation: During the movement of the annular scraper, livestock manure flows through the channel and drives the rotating blades to rotate, which in turn causes the connecting shaft to rotate the cleaning scraper, cleaning the pollutants attached to the screen and preventing the hot air nozzles from becoming clogged.

[0024] This invention also provides a method for reducing emissions and pollution in livestock farms, based on the aforementioned equipment for reducing emissions and pollution in livestock farms, comprising the following steps:

[0025] S1. Introduce livestock manure into the fermentation tank, then add fermentation agents and auxiliary materials. The fermentation agents are prepared by mixing indigenous bacteria, Bacillus subtilis, Bacillus licheniformis, lactic acid bacteria, and cellulase in a volume ratio of 1:2:2:1:1. The auxiliary materials are one of straw, rice husks, wheat bran, sawdust, or cornmeal. The volume ratio of fermentation agents, auxiliary materials, and livestock manure is 1:50:10000.

[0026] S2. The propulsion motor (23) drives the moving box (20) to move at the top of the fermentation box (1), and the moving box (20) drives the mixing arm (21) to move inside the fermentation box (1); during the movement of the mixing arm (21), the turning and throwing component (22) is used to mix the livestock manure, fermentation agent and auxiliary materials evenly.

[0027] S3. Use the drive motor to drive the drive arm to rotate. During the rotation of the drive arm, the connecting beam pulls the insulation film to seal the opening at the top of the fermentation box; and the livestock manure, fermentation agent and auxiliary materials continue to ferment for 12 to 14 days.

[0028] The working principle of this invention is as follows:

[0029] Compared with the prior art, the beneficial effects of the present invention are reflected in the following aspects:

[0030] First, the equipment structure of this invention is reasonably designed. It uses a mixing arm that can swing inside the fermentation tank and a turning component that can rotate on the mixing arm to mix and process livestock manure, fermentation agent and auxiliary materials, thereby improving the mixing uniformity of livestock manure, fermentation agent and auxiliary materials, and thus improving the fermentation efficiency of livestock manure.

[0031] Secondly, this invention scientifically combines indigenous bacteria, Bacillus subtilis, Bacillus licheniformis, lactic acid bacteria, and cellulase. The resulting fermentation agent contains beneficial microorganisms that can degrade compounds such as ammonia, indole, and sulfides in manure, deodorizing and eliminating odors, thereby reducing emissions and pollution and purifying the aquaculture environment. At the same time, this invention can absorb a large amount of livestock manure, reducing environmental pollution and turning waste into treasure by utilizing livestock manure as a resource. This can effectively reduce the use of chemical fertilizers and pesticides, lessen the pollution of food and the environment by chemical pesticides, and has significant environmental benefits.

[0032] Third, the device of the present invention uses an openable heat preservation component to seal the upper part of the fermentation box, which can ensure the entry of air during the fermentation of livestock manure and prevent the loss of heat during the fermentation process, thereby shortening the fermentation cycle of livestock manure and improving economic efficiency. Attached Figure Description

[0033] Figure 1 This is a longitudinal sectional view of the device of the present invention;

[0034] Figure 2 This is a schematic diagram showing the connection between the mobile box and the installation platform of the present invention;

[0035] Figure 3 This is a left view of the device of the present invention;

[0036] Figure 4 This is a schematic diagram showing the connection between the annular scraper and the movable box in the invention.

[0037] Figure 5 This is a schematic diagram showing the connection between the rotary motor and the mixing arm of the present invention;

[0038] Figure 6 This is a schematic diagram of the connection between the rotating shaft and the mixing arm of the present invention;

[0039] Figure 7 This is a schematic diagram showing the connection between the thermal insulation film and the sector plate of the present invention;

[0040] Figure 8 This is the present invention. Figure 1 A magnified view of a portion of point A in the middle;

[0041] Figure 9 This is a schematic diagram showing the connection between the hot air nozzle and the annular scraper of the present invention;

[0042] Among them, 1-fermentation box, 10-support, 11-base, 12-conditioning pipe, 13-discharge cover, 14-installation platform, 2-mixing component, 20-moving box, 200-guide slide bar, 21-mixing arm, 210-helical gear, 211-plug rod, 212-connecting sleeve, 213-compression spring, 22-tumbling component, 220-rotating shaft, 2200-transmission sprocket, 221-tumbling wheel, 222-rotary motor, 2220-main sprocket, 223-tumbling tooth, 23-propulsion motor, 230-propulsion screw, 24-oscillating motor. 240-Helical gear worm gear, 25-Mounting sleeve, 250-Shearing tooth, 3-Insulation component, 30-Fan-shaped plate, 31-Connecting crossbeam, 310-Arc-shaped locking block, 32-Drive arm, 320-Connecting gear, 33-Drive motor, 330-Drive gear, 34-Rewinding sleeve, 340-Roll, 35-Insulation film, 4-Annular scraper, 40-Wedge platform, 5-Hot air nozzle, 50-Spacing net, 51-Connecting shaft, 510-Cleaning scraper, 52-Flow channel, 53-Rotating blade, 6-Feeding hopper, 60-Discharge fan blade, 61-Discharge motor. Detailed Implementation

[0043] Example 1

[0044] like Figure 1 , 3 The above-displayed equipment for reducing emissions and pollution in a farm includes a fermentation tank 1, a mixing component 2 installed inside the fermentation tank 1, and a heat preservation component 3 installed at the top of the fermentation tank 1; the bottom of the fermentation tank 1 is connected to a base 11 via a support 10, a conditioning pipe 12 is installed on one side of the fermentation tank 1, and a feeding cover 13 is movably hinged to the other side; an installation platform 14 is installed at the top of the fermentation tank 1.

[0045] like Figure 1 , 2As shown in Figures 4 and 6, the mixing component 2 includes a movable box 20 movably mounted on the mounting platform 14, two vertically arranged mixing arms 21 arranged side by side on the bottom surface of the movable box 20, a turning and throwing component 22 respectively arranged on the two mixing arms 21, and a propulsion motor 23 mounted on the mounting platform 14 and providing power to the movable box 20; the bottom end of the movable box 20 is slidably engaged with a guide rod 200 fixedly connected to the mounting platform 14; the mixing arm 21 is hollow inside; the turning and throwing component 22 includes three components equidistantly distributed on the side wall of the mixing arm 21 via a rotating shaft 220. The system includes a turning wheel 221 and a rotary motor 222 mounted on the side wall of the mixing arm 21, which provides power to the rotating shaft 220. Each rotating shaft 220 passes through the mixing arm 21 and is fitted with a transmission sprocket 2200. The output shaft of the rotary motor 222 passes through the mixing arm 21 and is fitted with a main sprocket 2220. The main sprocket 2220 is connected to each transmission sprocket 2200 by a chain drive. The turning wheel 221 has four turning teeth 223 evenly distributed around its circumference. The output end of the propulsion motor 23 is provided with a propulsion screw 230 that is threadedly connected to the moving box 20.

[0046] like Figure 1 , 3 As shown in Figures 7 and 8, the insulation component 3 includes two symmetrically arranged sector plates 30 at the top of the mounting platform 14, a connecting beam 31 slidably engaged between the two sector plates 30, a drive arm 32 rotatably engaged with one of the sector plates 30 and rotatably engaged with the end of the connecting beam 31, a drive motor 33 provided with power to the drive arm 32 and mounted on the mounting platform 14, a take-up sleeve 34 located on the mounting platform 14 between the two sector plates 30, and insulation material mounted on the connecting beam 31. The film 35; the two ends of the connecting beam 31 are respectively slidably engaged with the two sector plates 30 one by one through the arc-shaped locking blocks 310; the bottom end of the side wall of the drive arm 32 is provided with a connecting gear 320; the output end of the drive motor 33 is provided with a drive gear 330 that meshes with the connecting gear 320; the inside of the take-up sleeve 34 is rotatably engaged with a roller 340, and a reset torsion spring is provided at the connection between the roller and the take-up sleeve 34; the free end of the heat-insulating film 35 passes through the take-up sleeve 34 and is wound around the roller 340.

[0047] Example 2

[0048] This embodiment describes a method for reducing emissions and pollution in a livestock farm, based on an emission reduction and pollution reduction device for a livestock farm according to Embodiment 1, including the following steps:

[0049] S1. The livestock manure is introduced into the fermentation tank 1, and excess water in the manure is discharged using the conditioning pipe 12 to control the moisture content of the manure to 50%. Then, fermentation agents and auxiliary materials are added into the fermentation tank 1. The fermentation agents are prepared by mixing indigenous bacteria, Bacillus subtilis, Bacillus licheniformis, lactic acid bacteria and cellulase in a volume ratio of 1:2:2:1:1. The indigenous bacteria are commercially available products, and the auxiliary material is straw. The volume ratio of fermentation agents, auxiliary materials and livestock manure is 1:50:10000.

[0050] S2. The propulsion motor 23 drives the propulsion screw 230 to rotate, thereby causing the moving box 20 to move along the guide slide 200 on the mounting platform 14, and driving the two mixing arms 21 to move inside the fermentation box 1. During the movement of the mixing arms 21, the rotary motor 222 drives the main sprocket 2220 to rotate, thereby causing each transmission sprocket 2200 to drive the corresponding turning wheel 221 and turning tooth 223 to rotate, so as to evenly mix the livestock manure, fermentation agent and auxiliary materials.

[0051] S3. The drive motor 33 drives the drive gear 330 to rotate. The meshing of the drive gear 330 and the connecting gear 320 causes the drive arm 32 to rotate. During the rotation of the drive arm 32, the connecting beam 31 slides between the two sector plates 30 and pulls the heat-insulating film 35 wrapped around the roller 340 to seal the opening at the top of the fermentation box 1. After the livestock manure, fermentation agent and auxiliary materials have been fermented for 14 days at a temperature of 55°C, the discharge cover 13 is opened to discharge the fermented material from the inside of the fermentation box 1.

[0052] Example 3

[0053] The difference between this embodiment and Embodiment 1 is that:

[0054] like Figure 4 , 6 As shown, each of the two mixing arms 21 has a helical gear 210 at its top end that is rotatably engaged with the bottom surface of the moving box 20; the moving box 20 has a swing motor 24 inside, and the output end of the swing motor 24 has a helical gear worm gear 240 that meshes with the two helical gears 210 respectively; the bottom end of the helical gear 210 has a plug rod 211, and the top end of the mixing arm 21 has a connecting sleeve 212 that is slidably engaged with the plug rod 211; the connecting sleeve 212 has a compression spring 213 inside that abuts against the plug rod 211.

[0055] The oscillating motor 24 drives the helical gear worm gear 240 to rotate, thereby causing the two helical gears 210 to rotate in opposite directions and drive the corresponding mixing arm 21 to open and close continuously, thereby adjusting the mixing path of the mixing arm 21 and improving the uniformity of mixing between the fermentation agent and the livestock manure. During the rotation of the mixing arm 21, the compression spring 213 keeps the bottom of the mixing arm 21 in close contact with the inner wall of the fermentation tank 1, thus avoiding the generation of mixing dead zones.

[0056] Example 4

[0057] This embodiment describes a method for reducing emissions and pollution in a livestock farm, based on a livestock farm emission and pollution reduction device according to Embodiment 3. The difference between this embodiment and Embodiment 2 is that:

[0058] In step S1, the moisture content of livestock manure is controlled to be 65%;

[0059] In step S2, during the movement of the moving box 20, the swing motor 24 drives the helical gear worm gear 240 to rotate, thereby causing the two helical gears 210 to rotate in opposite directions and drive the corresponding mixing arm 21 to open and close continuously. During the swing of the mixing arm 21, the compression spring 213 keeps the bottom of the mixing arm 21 in close contact with the inner wall of the fermentation box 1.

[0060] In step S3, after the livestock manure, fermentation agent and auxiliary materials have been fermenting for 12 days, the discharge cover 13 is opened to discharge the fermented material from the inside of the fermentation box 1.

[0061] Example 5

[0062] The difference between this embodiment and Embodiment 3 is that:

[0063] like Figure 6 As shown, the side wall of the hybrid arm 21 is provided with mounting sleeves 25 respectively sleeved on the outside of each rotating shaft 220, and each mounting sleeve 25 has 4 shearing teeth 250 evenly distributed in the circumferential direction.

[0064] The combined action of shearing teeth 250 and turning teeth 223 is used to shear and crush straw and other debris in manure, which helps to improve the fermentation efficiency of livestock manure.

[0065] Example 6

[0066] This embodiment describes a method for reducing emissions and pollution in a livestock farm, based on a livestock farm emission and pollution reduction device described in Embodiment 5. The difference between this embodiment and Embodiment 4 is that:

[0067] In step S2, when the turning and throwing teeth 223 rotate, the combined action of the shearing teeth 250 and the turning and throwing teeth 223 is used to shear and crush the straw and other debris in the manure.

[0068] Example 7

[0069] The difference between this embodiment and embodiment 5 is that:

[0070] like Figure 1 , 9 As shown, both ends of the bottom surface of the mobile box 20 are provided with annular scrapers 4 that abut against the inner wall of the fermentation box 1. Wedge-shaped platforms 40 are provided on both sides of the annular scraper 4. The annular scraper 4 is hollow inside and a hot air nozzle 5 is provided on the annular scraper 4. A hot air fan connected to the hot air nozzle 5 is provided on the side wall of the fermentation box 1. A partition net 50 is provided at the top inside the hot air nozzle 5. A connecting shaft 51 is provided through the partition net 50. A cleaning scraper 510 located on the upper end face of the partition net 50 is sleeved on the connecting shaft 51. A flow channel 52 is provided through the side wall of the hot air nozzle 5. A rotating blade 53 sleeved on the connecting shaft 51 is provided inside the flow channel 52.

[0071] The wedge-shaped platform 40 on the annular scraper 4 can remove the manure and fermentation agent at the bottom of the fermentation tank 1, preventing the fermentation agent from accumulating at the bottom of the fermentation tank 1 and affecting its effectiveness; the hot air blower is used to introduce heated air into the manure through the hot air nozzle 5 to heat the manure, which helps to shorten the fermentation cycle of the manure and improve production efficiency; and the cleaning scraper 510 can clean the partition 50 in real time to prevent the partition 50 from clogging.

[0072] Example 8

[0073] This embodiment describes a method for reducing emissions and pollution in a livestock farm, based on a livestock farm emission and pollution reduction device described in Embodiment 7. The difference between this embodiment and Embodiment 6 is that:

[0074] In step S2, during the movement of the mobile box 20, the wedge-shaped platform 40 on the annular scraper 4 removes the manure and fermentation agent from the bottom of the fermentation box 1. The heated air is introduced into the manure through the hot air nozzle 5 by the hot air blower to heat the manure. During the movement of the annular scraper 4, the manure flows through the flow channel 52 and drives the rotating blade 53 to rotate, which in turn causes the connecting shaft 51 to drive the cleaning scraper 510 to rotate, cleaning the pollutants attached to the screen 50.

[0075] Example 9

[0076] The difference between this embodiment and embodiment 7 is that:

[0077] like Figure 1 , 2 As shown, a feeding hopper 6 is provided at the front end of the mobile box 20, a feeding fan blade 60 is provided at the lower opening of the feeding hopper 6, and a feeding motor 61 connected to the feeding fan blade 60 is provided on the side wall of the feeding hopper 6.

[0078] By using the feeding motor 61 to drive the feeding fan blades 60 to rotate, the fermentation agent and auxiliary materials inside the feeding hopper 6 can be intermittently fed into the fermentation box 1, thereby reducing the difficulty of mixing the fermentation agent, auxiliary materials and livestock manure.

[0079] Example 10

[0080] This embodiment describes a method for reducing emissions and pollution in a livestock farm, based on a livestock farm emission and pollution reduction device in Embodiment 9, which differs from Embodiment 8 in that:

[0081] In step S1, the fermentation agent and auxiliary materials are put into the feeding hopper 6;

[0082] In step S2, during the movement of the mobile box 20, the feeding motor 61 drives the feeding fan blade 60 to rotate, so that the fermentation agent and auxiliary materials are intermittently fed into the fermentation box 1 and mixed with the livestock manure.

[0083] Example 11

[0084] The difference between this embodiment and embodiment 9 is that:

[0085] like Figure 8 As shown, the insulation film 35 is a reflective film;

[0086] By using reflective film 35 to absorb the heat from sunlight and heat the livestock manure, the energy consumption of the equipment can be reduced.

[0087] It should be noted that the rotary motor 222-, swing motor 24, drive motor 33, hot air blower, hot air nozzle 5 and feeding motor 61 used in this invention all adopt existing technology and are not specifically limited here. The corresponding products can be selected according to actual needs.

[0088] Test case

[0089] The equipment used in Examples 1, 3, 5, 7, 9, and 11 of this invention was used to compost manure discharged from a dairy farm in northern my country. After fermentation, various indicators of the organic fertilizer obtained in each example were tested, and the test results are shown in Table 1.

[0090] Table 1. Indicators of dairy cow manure after fermentation

[0091]

[0092] As shown in Table 1, the organic fertilizers prepared using the equipment in Examples 1, 3, 5, 7, 9, and 11 of this invention all meet the required performance standards. Among them, the organic fertilizer prepared using the equipment in Example 11 has an organic matter content of 32%, a pH of 7, a moisture content of 16%, a miscellaneous bacteria rate of 9%, and a black and odorless appearance. All of these preparation methods are superior to those of the equipment in the other examples, making the equipment in Example 11 the optimal equipment.

Claims

1. A farm emission and pollution reduction apparatus, characterized by, The utility model provides a fermentation box (1), set up mixing subassembly (2) in the fermentation box (1) inside and set up heat preservation subassembly (3) in fermentation box (1) top, fermentation box (1) top is provided with installation platform (14), The mixing subassembly (2) includes a moving box (20) movably arranged on the installation platform (14), two mixing arms (21) arranged on the bottom surface of the moving box (20), a turnover component (22) arranged on each mixing arm (21), and a propulsion motor (23) arranged on the installation platform (14) and providing power for the moving box (20); The heat preservation subassembly (3) includes a fan-shaped plate (30) arranged on the top of the installation platform (14), a connecting beam (31) slidably connected to the fan-shaped plate (30), a drive arm (32) rotatably connected to the fan-shaped plate (30), a drive motor (33) providing power for the drive arm (32), a winding sleeve (34) arranged on the installation platform (14), and a heat preservation film (35) arranged on the connecting beam (31); The turnover component (22) includes a plurality of turnover wheels (221) equidistantly distributed on the side wall of the mixing arm (21) through a rotating shaft (220) and a rotating motor (222) arranged on the side wall of the mixing arm (21) and providing power for the rotating shaft (220); each rotating shaft (220) penetrates the mixing arm (21) and is sleeved with a transmission sprocket (2200); the output shaft of the rotating motor (222) penetrates the mixing arm (21), and the output shaft is sleeved with a main sprocket (2220), and the main sprocket (2220) and each transmission sprocket (2200) are connected through a chain transmission; The turnover wheel (221) is equidistantly distributed with a plurality of turnover teeth (223) in the circumferential direction; The output end of the propulsion motor (23) is provided with a propulsion lead screw (230) threadedly connected with the moving box (20); The top end of each mixing arm (21) is provided with a bevel gear (210) rotatably connected with the bottom surface of the moving box (20); an oscillating motor (24) is arranged in the moving box (20), and the output end of the oscillating motor (24) is provided with a bevel gear worm (240) meshingly connected with the two bevel gears (210); The bottom end of the bevel gear (210) is provided with a plug-in rod (211), the top end of the mixing arm (21) is provided with a connecting sleeve (212) slidably connected with the plug-in rod (211), and the connecting sleeve (212) is provided with a compression spring (213) abutting against the plug-in rod (211) in the inside; The side wall of the mixing arm (21) is provided with a mounting sleeve (25) sleeved outside each rotating shaft (220), and the circumferential direction of each mounting sleeve (25) is equidistantly distributed with a plurality of shearing teeth (250); The bottom surface of the moving box (20) is provided with an annular scraping strip (4) abutting against the inner wall of the fermentation box (1) at both ends, and the two sides of the annular scraping strip (4) are provided with wedge-shaped tables (40).

2. A farm emission and pollution reduction apparatus according to claim 1, characterized in that, The annular scraping strip (4) is hollow inside, the annular scraping strip (4) is provided with a hot air nozzle (5), and the sidewall of the fermentation box (1) is provided with a hot air machine in communication with the hot air nozzle (5).

3. A farm emission and pollution reduction apparatus according to claim 2, wherein A separation net (50) is arranged on the top of the hot air nozzle (5), a connecting shaft (51) is arranged through the separation net (50), a cleaning scraper (510) is arranged on the connecting shaft (51) and located on the upper end surface of the separation net (50); a flow channel (52) is arranged through the sidewall of the hot air nozzle (5), and a rotating paddle (53) is arranged in the flow channel (52) and sleeved on the connecting shaft (51).

4. A method for reducing emissions and pollution in a farm, based on the farm emissions and pollution reduction device according to any one of claims 1-3, characterized in that, The method comprises the following steps: S1, the breeding manure is introduced into the fermentation box (1), and then the fermentation bacteria and the auxiliary materials are added into the fermentation box (1); S2, the moving box (20) is driven by the propelling motor (23) to move at the top end of the fermentation box (1), and the mixing arm (21) is driven by the moving box (20) to move in the fermentation box (1); during the movement of the mixing arm (21), the breeding manure, the fermentation bacteria and the auxiliary materials are uniformly mixed by the turning and throwing component (22); S3, the driving arm (32) is rotated by the driving motor (33), and during the rotation of the driving arm (32), the connecting cross beam (31) pulls the heat preservation film (35) to close the upper end opening of the fermentation box (1), so that the breeding manure, the fermentation bacteria and the auxiliary materials can be continuously fermented for 12-14 days.

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