A drip irrigation system for returning manure to fields

Abstract

The invention discloses a manure-returning drip irrigation system, which relates to the technical field of agricultural irrigation equipment, including a drip irrigation pipe, wherein a separation mechanism is arranged inside the drip irrigation pipe; a fermentation mechanism is arranged at the bottom of the drip irrigation pipe; a mixing mechanism is arranged inside the separation mechanism, and the mixing mechanism includes a paddle shaft rotatably installed inside a plurality of cover tubes, and a plurality of comb-shaped parts are sleeved on the outer side of the paddle shaft; a valve mechanism is arranged between the separation mechanism and the fermentation mechanism; the manure water and solid manure introduced into the drip irrigation pipe are stirred and separated by the mixing mechanism in cooperation with the separation mechanism, and the separated solid manure enters the fermentation mechanism to ferment and produce biogas, and when the equipment stops running, the flow rate of biogas is regulated by the valve mechanism, so as to self-clean the separation mechanism. The manure-returning drip irrigation system disclosed by the invention has the precision controllability of traditional liquid manure drip irrigation, and the high efficiency of large-scale spraying of solid manure by traditional agricultural machinery.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural irrigation equipment, and in particular to a manure returning drip irrigation system. Background Art

[0002] The utilization of livestock and poultry manure returning to the fields is mainly based on the principle of nitrogen and phosphorus nutrient supply and demand balance to match the land. Usage and amount are the key. Excessive application will cause soil accumulation and leaching loss of nitrogen and phosphorus nutrients, resulting in non-point source pollution problems such as soil and groundwater. Insufficient application will affect crop growth. Scientific quantification is the basis for the utilization of livestock and poultry manure returning to the fields. If used well, a farm is equivalent to an "organic fertilizer processing plant"; if used poorly, a piece of land is equivalent to a "pollution source."

[0003] There are two existing methods of returning manure to the fields. One is to spread solid manure through large agricultural machinery, and the other is to drip liquid manure through multiple rows of pipes. However, in actual use, the two methods use agricultural machinery for fertilization. Due to their large size and poor adaptability, agricultural machinery may cause over-fertilization, missed fertilizers, and damage vegetation. Although multiple rows of pipes can achieve precise control of the amount of fertilizer, it is easy to cause blockage of the fertilizer pipes and low work efficiency. In actual use, both methods have shortcomings and limitations. Summary of the invention

[0004] The invention discloses a manure returning drip irrigation system, which aims to solve the problems in the existing manure returning methods: when agricultural machinery is used for fertilizing, due to its large size and poor adaptability, there will be phenomena of over-fertilization, missed fertilization and damage to vegetation; and although the use of multiple rows of pipes for fertilizing can achieve precise amount control, it is easy to cause blockage of the fertilizer pipeline and low work efficiency; in actual use, both have technical problems of shortcomings and limitations.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A manure returning drip irrigation system comprises a drip irrigation pipe, wherein a separation mechanism for screening solid manure and manure water is arranged inside the drip irrigation pipe, wherein the separation mechanism comprises a plurality of cover cylinders which are connected to each other and rotatably installed inside the drip irrigation pipe, wherein a lowering cylinder is provided on the outer side of each of the cover cylinders, and an annular plate is fixed on the outer side of each of the lowering cylinders, wherein the annular plate is rotatably fitted to the inner wall of the drip irrigation pipe, and the openings of the plurality of lowering cylinders are staggered in a circle center.

[0007] A fermentation mechanism for stacking, fermenting and spraying solid feces is provided at the bottom of the drip irrigation pipe, and the fermentation mechanism includes a fermentation tank vertically distributed at the bottom of the drip irrigation pipe, and the fermentation tank is connected to the inside of the drip irrigation pipe;

[0008] A mixing mechanism for stirring the manure-water mixture is arranged inside the separation mechanism, and the mixing mechanism includes a paddle shaft rotatably mounted inside a plurality of the cover tubes, a plurality of comb-shaped members are sleeved on the outer side of the paddle shaft, and each of the comb-shaped members is correspondingly distributed inside one of the cover tubes;

[0009] A valve mechanism for controlling the flow rate of fermentation gas is provided between the separation mechanism and the fermentation mechanism;

[0010] The mixing mechanism cooperates with the separation mechanism to stir and separate the manure water and solid manure introduced into the drip irrigation pipe, and the separated solid manure enters the fermentation mechanism to ferment and produce biogas. When the equipment stops running, the valve mechanism is used to regulate the flow of biogas, so as to self-clean the separation mechanism.

[0011] By arranging a separation mechanism for screening solid manure and manure water inside the drip irrigation pipe, the manure-water mixture entering the drip irrigation pipe is efficiently separated by the rotation of the mixing mechanism, and the sewage continues to be irrigated to the fields along the drip irrigation pipe, while the separated solid manure enters the fermentation mechanism for accumulation. When the user needs to irrigate the land with solid manure on a large scale, the user can start the fermentation mechanism and use the operation of the fermentation mechanism to irrigate the fields with solid manure, so that the equipment has the precision controllability of traditional liquid manure drip irrigation and the high efficiency of traditional agricultural machinery spraying solid manure on a large scale; at the same time, after the entire equipment stops running, the solid manure accumulated inside the fermentation mechanism can be fermented to produce high-pressure biogas, and the operation of the valve mechanism is coordinated to control the upwelling of biogas to blow and clean the separation mechanism located inside the drip irrigation pipe, thereby further improving the functionality of the equipment and the perfection of its operation.

[0012] In a preferred embodiment, the separation mechanism further includes a sieve opening on the outer side of each of the cover cylinders, a first sieve plate and a second sieve plate are fixedly installed between the two interconnected cover cylinders, and the sieve hole diameter of the second sieve plate is smaller than the sieve hole diameter of the first sieve plate, and a motor for driving the cover cylinder to rotate is horizontally distributed on the outer side of the drip irrigation pipe.

[0013] The solid feces and impurities in the manure-water mixture are intercepted by the sieve opening and the first sieve plate on the outside of the cover, and the filtered manure water is dripped out. The intercepted solid feces falls into the fermentation mechanism along the lower barrel as the cover rotates, thereby efficiently completing the separation and treatment of the manure-water mixture and providing basic conditions for the subsequent operation of the equipment.

[0014] In a preferred embodiment, the fermentation mechanism also includes a straight pipe connected to the side of the fermentation tank, a sludge pump is installed at the end of the straight pipe, and a material spraying pipe is horizontally connected to the top of the sludge pump. The material spraying pipe and the drip irrigation pipe are staggered in the vertical direction.

[0015] By arranging a through-connected fermentation tank structure at the bottom of the drip irrigation pipe, the separated solid manure is collected separately. When the user needs to fertilize the field on a large scale, the solid manure accumulated in the fermentation tank can be discharged from both sides of the material spreading pipe through the operation of the sludge pump and sprayed on the field on a large scale, thereby improving the working efficiency of the equipment. At the same time, the solid manure accumulated in the fermentation tank can be fermented, and the biogas generated during sterilization can be used to clean the cover tube later, thereby improving the functionality and operational perfection of the equipment.

[0016] In a preferred embodiment, the mixing mechanism also includes an air pipe rotatably installed at the end of the paddle shaft, the air pipe passes through the bottom of the drip irrigation pipe and is connected to the fermentation tank, a pressure valve is provided in the middle of the air pipe, an air cavity is opened through the inside of the paddle shaft and the comb-shaped member, and is connected to the inside of the fermentation tank through the air pipe, and a plug plate is slidably installed inside one end of each comb-shaped member, the plug plates are distributed inside the air cavity, and the moving plug plates are pressed and contacted with the sides of the first sieve plate and the second sieve plate.

[0017] By rotating a paddle shaft structure with a comb-shaped member inside the hood, the force of the manure and water impacting the paddle shaft is used to drive the comb-shaped member to rotate synchronously, thereby stirring the manure and water mixture inside the hood, allowing solid manure and manure to be separated more thoroughly. At the same time, when the equipment stops running, the pressure valve is used to control the air path inside the paddle shaft to be connected, so that the biogas is used to push the plug plate to move horizontally and contact the sieve on the surface of the hood, and the motor drives the hood to rotate to clean the hood, thereby further ensuring the integrity of the operation of the equipment and improving its functionality.

[0018] In a preferred embodiment, the valve mechanism includes a conducting piece connected between the drip irrigation pipe and the fermentation tank, a control part is rotatably installed inside the conducting piece, an end of the control part passes through the side of the conducting piece and is sleeved with a damping part, a ratchet is provided on the outer side of the output end of the motor, and a ratchet is kneaded and connected to the outer side of the ratchet.

[0019] A control unit driven synchronously by the motor is provided to cooperate with the conductive part to change the air flow inside the device. When the motor reverses, the ratchet tooth structure provided on the outside of the motor output shaft will run synchronously, and drive the control unit to flip through the damping part, thereby squeezing the inner wall of the conductive part, changing the air flow range inside the conductive part, and blowing and cleaning the surface of the cover tube in a manner of increasing the air pressure, thereby further improving the functionality of the device.

[0020] In a preferred embodiment, the control part includes a shaft rod rotatably installed inside the conductive member, the end of the shaft rod passes through the side of the conductive member and is sleeved with a damping member, and a short plate member and a long plate member are symmetrically installed on the outer side of the shaft rod, and the length of the short plate member is smaller than the length of the long plate member.

[0021] By providing a shaft rod structure with a short plate and a long plate to rotate along the inside of the conducting member, the length difference between the short plate and the long plate is utilized to cooperate with the conducting member to form a gap, thereby increasing the air pressure flowing from the inside of the conducting member and ensuring the perfect and reasonable operation of the valve mechanism.

[0022] As can be seen from the above, the drip irrigation system for returning manure to fields provided by the present invention has the following improvements and advantages compared with the prior art:

[0023] First, a plurality of cover cylinder structures driven by a motor are arranged inside the drip irrigation pipe, and the manure-water mixture entering the drip irrigation pipe is received by the slowly rotating cover cylinder, and the solid manure and impurities in the manure-water mixture are intercepted by the screen opening and the first screen plate additionally arranged on the outside of the cover cylinder, and the filtered manure-water is drip-irrigated out, and the intercepted solid manure falls into the interior of the reaction tank along the discharge barrel as the cover cylinder rotates, thereby efficiently completing the separation and treatment of the manure-water mixture. At the same time, the solid manure entering the reaction tank can be discharged from the fermentation tank and discharged from both sides of the material spraying pipe according to the needs of the user through the operation of the sludge pump, and sprayed on the fields over a large range, so that the equipment has the precision controllability of traditional liquid manure drip irrigation, and the high efficiency of traditional agricultural machinery spraying solid manure over a large range.

[0024] Secondly, a paddle shaft structure with a comb-shaped part is rotated inside the cover, and the force of the manure and water impacting the paddle shaft is used to drive the comb-shaped part to rotate synchronously, so as to stir the manure and water mixture inside the cover, so that the solid manure and manure water are separated more thoroughly. At the same time, when the equipment stops running, the pressure valve is used to control the air path inside the paddle shaft to connect, so that the biogas generated inside the fermentation tank pushes the plug plate to move horizontally and contact the sieve mouth on the surface of the cover, and cooperates with the additional control part to cooperate with the conduction part to change the air pressure inside the equipment, and then cooperates with the motor to drive the rotation of the cover, so as to scrape and blow the inside and outside of the cover respectively, so as to improve the functionality and work efficiency of the equipment while ensuring the integrity of the operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention provides a schematic diagram of the overall structure of a manure returning drip irrigation system.

[0026] Figure 2This is a schematic diagram of the structure of a single drip irrigation pipe of a manure returning drip irrigation system proposed by the present invention.

[0027] Figure 3 The present invention provides a side view of a single drip irrigation pipe structure of a manure returning drip irrigation system.

[0028] Figure 4 The present invention provides a cross-sectional view of the drip irrigation pipe structure of a manure returning drip irrigation system.

[0029] Figure 5 The present invention provides a schematic diagram of the internal structure of a drip irrigation pipe of a manure returning drip irrigation system.

[0030] Figure 6 This is a cross-sectional view of the separation mechanism structure of a manure returning drip irrigation system proposed by the present invention.

[0031] Figure 7 This is an exploded diagram of the separation mechanism structure of a manure returning drip irrigation system proposed by the present invention.

[0032] Figure 8 This is a cross-sectional view of the structure of a mixing mechanism of a manure returning drip irrigation system proposed by the present invention.

[0033] Fig. 9 A manure returning drip irrigation system proposed by the present invention Figure 8 A magnified view of the structure at center.

[0034] Fig.10 This is a cross-sectional view of the ratchet structure of a manure returning drip irrigation system proposed by the present invention.

[0035] Fig.11 The present invention provides a cross-sectional view of the conductive member structure of a manure returning drip irrigation system.

[0036] In the figure: 1. drip irrigation pipe; 2. separation mechanism; 201. cover tube; 202. discharge barrel; 203. annular plate; 204. sieve mouth; 205. first sieve plate; 206. motor; 207. first belt; 208. flange; 209. second sieve plate; 3. fermentation mechanism; 301. fermentation tank; 302. straight pipe; 303. sludge pump; 304. material sprinkling pipe; 4. mixing mechanism; 401. paddle shaft; 402. comb member; 403. air pipe; 404. pressure valve member; 405. air cavity; 406. plug plate; 407. elastic member; 5. valve mechanism; 501. conduction member; 502. control unit; 5021. shaft; 5022. short plate member; 5023. long plate member; 503. damping member; 504. ratchet; 505. ratchet; 506. second belt. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] The manure returning to the field drip irrigation system disclosed by the invention is mainly applied to the scene of returning manure to the field.

[0039] Reference Figures 1 to 11 A manure returning drip irrigation system comprises a drip irrigation pipe 1, wherein a separation mechanism 2 for screening solid manure and manure water is arranged inside the drip irrigation pipe 1, wherein the separation mechanism 2 comprises a plurality of shield cylinders 201 which are connected to each other and rotatably installed inside the drip irrigation pipe 1, wherein a discharge barrel 202 is provided on the outside of each shield cylinder 201, wherein an annular plate 203 is fixed on the outside of each discharge barrel 202, wherein the annular plate 203 is rotatably fitted to the inner wall of the drip irrigation pipe 1, and the openings of the plurality of discharge barrels 202 are staggered in a circle center; wherein a fermentation mechanism 3 for stacking, fermenting and spraying solid manure is arranged at the bottom of the drip irrigation pipe 1, wherein the fermentation mechanism 3 comprises a fermentation tank 301 which is vertically distributed at the bottom of the drip irrigation pipe 1, wherein the fermentation tank 301 and the inside of the drip irrigation pipe 1 are provided with a plurality of shield cylinders 201 which are rotatably installed inside the drip irrigation pipe 1, wherein the fermentation tank 301 and the inside of the drip irrigation pipe 1 are provided with a plurality of shield cylinders 201 which are rotatably fitted to the inner wall of the drip irrigation pipe 1, and wherein the openings of the plurality of discharge barrels 202 are staggered in a circle center; wherein a fermentation mechanism 3 for stacking, fermenting and spraying solid manure is arranged at the bottom of the drip irrigation pipe 1, wherein the fermentation mechanism 3 comprises a fermentation tank 301 which is vertically distributed at the bottom of the drip irrigation pipe 1, wherein the fermentation tank 301 and the inside of the drip irrigation pipe 1 are provided with a plurality of shield cylinders 201 which are rotatably installed inside the drip irrigation pipe 1, wherein the fermentation tank 301 and the inside of the drip irrigation pipe 1 are provided with a plurality of shield cylinders 201 which are rotatably Through connection; a mixing mechanism 4 for stirring the manure-water mixture is arranged inside the separation mechanism 2, and the mixing mechanism 4 includes a paddle shaft 401 rotatably installed inside a plurality of cover tubes 201, and a plurality of comb-shaped members 402 are sleeved on the outer side of the paddle shaft 401, and each comb-shaped member 402 is correspondingly distributed inside a cover tube 201; a valve mechanism 5 for controlling the flow rate of fermentation gas is arranged between the separation mechanism 2 and the fermentation mechanism 3; the manure-water solid manure introduced into the drip irrigation pipe 1 is stirred and separated by the mixing mechanism 4 in cooperation with the separation mechanism 2, and the separated solid manure enters the fermentation mechanism 3 for fermentation and biogas production. When the equipment stops running, the flow rate of biogas is regulated by the valve mechanism 5, so as to self-clean the separation mechanism 2.

[0040] In this embodiment, before use, manure needs to be concentrated in a designated storage area for full decomposition to prevent pathogens, insect eggs, weed seeds, etc. from affecting subsequent fertilization. The operator connects the ends of several drip irrigation pipes 1 to an external manure transport device, which can simultaneously transport water to adjust the concentration of manure. Then, the manure mixture is transported to the inside of the drip irrigation pipe 1 and the entire device is started. The manure mixture entering the drip irrigation pipe 1 is stirred by the separation mechanism 2 and the mixing mechanism 4, thereby separating. The manure water will continue to drip along the drip irrigation pipe 1 to the field, while the separation mechanism 4 will continue to drip. The moist solid manure and impurities discharged will enter the interior of the fermentation mechanism 3 through the valve mechanism 5 and accumulate inside the fermentation mechanism 3; when the user needs to fertilize the field on a large scale, the fermentation mechanism 3 is started at this time, and the fermentation mechanism 3 will spray the accumulated moist solid manure on a large scale between the fields; and when the equipment stops running, the solid manure inside the fermentation mechanism 3 will accumulate and ferment and produce a large amount of biogas. At this time, the user starts the valve mechanism 5 and the mixing mechanism 4 to control the biogas inside the fermentation mechanism 3 to gush into the interior of the drip irrigation pipe 1, thereby cleaning the surface of the separation mechanism 2.

[0041] In the above scheme, in order to prevent the manure mixture from entering the drip irrigation pipe 1 and causing blockage to the drip irrigation pipe 1, the specific operation is as follows.

[0042] Reference Figures 4 to 7 , Fig.10 In a preferred embodiment, the separation mechanism 2 also includes a sieve opening 204 on the outside of each cover cylinder 201, and a first sieve plate 205 and a second sieve plate 209 are fixedly installed between the two interconnected cover cylinders 201, and the sieve hole diameter of the second sieve plate 209 is smaller than the sieve hole diameter of the first sieve plate 205, and a motor 206 for driving the cover cylinder 201 to rotate is horizontally distributed on the outside of the drip irrigation pipe 1.

[0043] In this embodiment, the motor 206 is started and drives the cover barrel 201 to rotate synchronously, and the manure mixture entering the drip irrigation pipe 1 will first reach the inside of the cover barrel 201. At this time, the manure water in the manure mixture will be filtered through the sieve 204, the first sieve plate 205 and the second sieve plate 209, and continue to flow along the inside of the drip irrigation pipe 1, and drip from the inside of the drip irrigation pipe 1 to the field, while the intercepted solid manure will continue to remain in the inside of the cover barrel 201. As the cover barrel 201 rotates, when the cover barrel 2 01, when the lower barrel 202 on the surface is facing downward, the solid feces inside the cover barrel 201 will fall along the lower barrel 202 to the inside of the fermentation mechanism 3, completing the separation of fecal water and solid feces; wherein, a flange 208 is fixedly installed at the end of the cover barrel 201 located on one side, and the outer diameter of the flange 208 is the same as the inner diameter of the drip irrigation pipe 1, and the outer transmission sleeve of the flange 208 and the output end of the motor 206 is connected with a first belt 207, and the transmission relationship between the motor 206 and the cover barrel 201 is realized through the first belt 207.

[0044] In the above scheme, considering the treatment of the separated solid feces, the specific operations are as follows.

[0045] Reference Figures 1 to 4 In a preferred embodiment, the fermentation mechanism 3 also includes a straight pipe 302 connected to the side of the fermentation tank 301, a sludge pump 303 is installed at the end of the straight pipe 302, and a material sprinkling pipe 304 is horizontally connected to the top of the sludge pump 303. The material sprinkling pipe 304 and the drip irrigation pipe 1 are staggered in the vertical direction.

[0046] In this embodiment, the solid manure that falls into the fermentation tank 301 will accumulate. When the operator needs to fertilize the field on a large scale, the operator starts the sludge pump 303. The sludge pump 303 runs and extracts the solid manure in the fermentation tank 301 through the straight pipe 302 and sprays it into the field through both sides of the spraying pipe 304.

[0047] In the above scheme, in order to further improve the separation efficiency of feces and solid feces, the specific operations are as follows.

[0048] Reference Figures 2 to 6 , Figures 8 to 9In a preferred embodiment, the mixing mechanism 4 also includes an air pipe 403 rotatably installed at the end of the paddle shaft 401, the air pipe 403 passes through the bottom of the drip irrigation pipe 1 and is connected to the fermentation tank 301, and a pressure valve 404 is arranged in the middle of the air pipe 403. An air cavity 405 is opened inside the paddle shaft 401 and the comb-shaped member 402, and is connected to the interior of the fermentation tank 301 through the air pipe 403. A plug plate 406 is slidably installed inside one end of each comb-shaped member 402, and the plug plates 406 are distributed inside the air cavity 405. The movable plug plates 406 are pressed and contacted with the sides of the first sieve plate 205 and the second sieve plate 209.

[0049] In this embodiment, when the manure water inside the manure mixture continues to move along the inside of the drip irrigation pipe 1 through the sieve opening 204 and the first sieve plate 205, the manure water will impact the end of the paddle shaft 401, causing the paddle shaft 401 to drive the comb-shaped member 402 to rotate, and the rotating comb-shaped member 402 will stir the manure mixture, thereby improving the crushing effect and separation efficiency of the manure mixture;

[0050] When the drip irrigation work of the equipment is stopped, the operator needs to control the motor 206 to drive the cover barrel 201 to continue to rotate slightly, so that the annular plate 203 located outside the lower barrel 202 rotates, and the top of the fermentation tank 301 is sealed. The solid feces inside the fermentation tank 301 will gradually ferment and produce a large amount of biogas. During this period, the operator observes the air pressure inside the fermentation tank 301 through the pressure valve 404. After the air pressure reaches the preset value, the pressure valve 404 conducts the air pipe 403 and the air cavity 405, so that a part of the biogas inside the fermentation tank 301 is diverted into the interior of the air cavity 405 and pushes the plug plate 406 to extend outward. The extended plug plate 406 will be squeezed on the sides of the first sieve plate 205 and the second sieve plate 209. As the motor 206 drives the cover barrel 201 to continue to rotate, the surfaces of the first sieve plate 205 and the second sieve plate 209 are scraped and cleaned to complete the maintenance work of the equipment.

[0051] An elastic member 407 is fixedly connected between each plug plate 406 and the comb-shaped member 402 , and the plug plate 406 is pulled to reset and move by the elastic member 407 .

[0052] The fermentation tank 301 is also equipped with a pressure relief valve to ensure that the air pressure in the fermentation tank 301 can be maintained within a safe range when the equipment stops drip irrigation and maintenance work.

[0053] In the above solution, in order to clean the surface of the sieve opening 204, the specific operation is as follows.

[0054] Reference Figure 5 , Figure 10 to Figure 11In a preferred embodiment, the valve mechanism 5 includes a conducting member 501 connected between the drip irrigation pipe 1 and the fermentation tank 301, a control unit 502 is rotatably installed inside the conducting member 501, an end of the control unit 502 passes through the side of the conducting member 501 and is sleeved with a damping member 503, a ratchet 504 is provided on the outer side of the output end of the motor 206, and a ratchet 505 is kneaded and connected to the outer side of the ratchet 504.

[0055] In this embodiment: the operator observes the air pressure inside the fermentation tank 301 through the pressure valve member 404. After the air pressure reaches the preset value, the operator controls the motor 206 to reverse. The reversed motor 206 will drive the damping member 503 to rotate through the meshing relationship between the ratchet 505 and the ratchet 504. The rotating damping member 503 will synchronously drive the control unit 502 to rotate along the inside of the conductive member 501, thereby changing the space for the internal air flow of the conductive member 501, causing the pressure of the biogas surging upward from the fermentation tank 301 to increase. At the same time, as the motor 206 drives the cover barrel 201 to rotate, the corresponding surfaces of the cover barrel 201 and the conductive member 501 are constantly changing, and the biogas blown from the conductive member 501 will blow and clean the sieve opening 204 located outside the cover barrel 201; wherein, a second belt 506 is connected to the transmission sleeve between the ratchet 505 and the damping member 503.

[0056] Further, it is supplemented that: the control part 502 includes a shaft 5021 rotatably installed inside the conductive member 501, the end of the shaft 5021 penetrates from the side of the conductive member 501 and is sleeved with a damping member 503, and a short plate 5022 and a long plate 5023 are symmetrically installed on the outer side of the shaft 5021, and the length of the short plate 5022 is less than the length of the long plate 5023. The shaft 5021 rotates, thereby driving the short plate 5022 and the long plate 5023 to deflect, and the long plate 5023 will be squeezed and contacted with the inner wall of the conductive member 501, and a gap will appear between the short plate 5022 and the conductive member 501 for biogas circulation. The specific state is as follows Fig.11 shown.

[0057] Working principle: When in use, the operator connects the ends of several drip irrigation pipes 1 to the external manure transport equipment, and at the same time transports the manure mixture into the interior of the drip irrigation pipe 1 and starts the entire device. At this time, the motor 206 starts and drives the cover cylinder 201 to rotate synchronously, and the manure mixture entering the interior of the drip irrigation pipe 1 will first reach the interior of the cover cylinder 201. At this time, the manure water in the manure mixture will continue to flow along the interior of the drip irrigation pipe 1 through the sieve 204, the first sieve plate 205 and the second sieve plate 209, and drip from the interior of the drip irrigation pipe 1 to the field, while the intercepted solid manure will continue to remain in the cover. Inside the cylinder 201, along with the rotation of the cover cylinder 201, when the discharge cylinder 202 on the surface of the cover cylinder 201 faces downward, the solid feces inside the cover cylinder 201 will fall along the discharge cylinder 202 to the inside of the fermentation tank 301, completing the separation of feces and solid feces. The solid feces falling into the fermentation tank 301 will accumulate. When the operator needs to fertilize the field on a large scale, the operator starts the sludge pump 303, and the sludge pump 303 runs and extracts the solid feces inside the fermentation tank 301 through the straight pipe 302 and sprays it to the field through both sides of the material spraying pipe 304;

[0058] While the manure water inside the manure mixture continues to move along the inside of the drip irrigation pipe 1, the manure water will impact the end of the paddle shaft 401, causing the paddle shaft 401 to drive the comb-shaped member 402 to rotate, and the rotating comb-shaped member 402 will stir the manure mixture, thereby improving the separation efficiency of the manure mixture;

[0059] When the equipment needs to be shut down for maintenance, the operator needs to control the motor 206 to drive the cover cylinder 201 to continue to rotate slightly, so that the annular plate 203 located outside the discharge cylinder 202 rotates, and the top of the fermentation tank 301 is sealed. The solid feces inside the fermentation tank 301 will gradually ferment and produce a large amount of biogas. During this period, the operator observes the air pressure inside the fermentation tank 301 through the pressure valve 404. After the air pressure reaches the preset value, the pressure valve 404 connects the air pipe 403 and the air cavity 405, so that a part of the biogas inside the fermentation tank 301 is diverted into the interior of the air cavity 405 and pushes the plug plate 406 to extend outward. The extended plug plate 406 will squeeze the sides of the first sieve plate 205 and the second sieve plate 209. At this time, the operator controls the motor 206 to reverse The reversed motor 206 will drive the damping member 503 to rotate through the meshing relationship between the ratchet wheel 505 and the ratchet teeth 504, and the rotating damping member 503 will synchronously drive the control unit 502 to rotate along the inside of the conductive member 501, thereby changing the space for the flow of gas in the conductive member 501, causing the pressure of the biogas surging upward from the fermentation tank 301 to increase. At the same time, as the motor 206 drives the cover cylinder 201 to rotate, the corresponding surfaces of the cover cylinder 201 and the conductive member 501 are constantly changing, and the biogas blown from the conductive member 501 will blow and clean the sieve opening 204 located on the outside of the cover cylinder 201, and as the motor 206 drives the cover cylinder 201 to continue to rotate, the plug plate 406 will scrape and clean the surfaces of the first sieve plate 205 and the second sieve plate 209 to complete self-cleaning.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A manure return drip irrigation system, comprising a drip irrigation pipe (1), characterized in that: The drip irrigation pipe (1) is provided with a separation mechanism (2) for screening solid feces and fecal water, the separation mechanism (2) comprising a plurality of cover cylinders (201) connected to each other and rotatably mounted inside the drip irrigation pipe (1), each cover cylinder (201) is provided with a material discharge cylinder (202) on the outside, each material discharge cylinder (202) is further fixed with an annular plate (203) on the outside, the annular plate (203) is rotatably fitted to the inner wall of the drip irrigation pipe (1), and the openings of the plurality of material discharge cylinders (202) are staggered in a circle center. A fermentation mechanism (3) for stacking, fermenting and spraying solid feces is provided at the bottom of the drip irrigation pipe (1), the fermentation mechanism (3) comprising a fermentation tank (301) vertically distributed at the bottom of the drip irrigation pipe (1), the fermentation tank (301) and the interior of the drip irrigation pipe (1) being connected through-connected; A mixing mechanism (4) for stirring the manure-water mixture is arranged inside the separation mechanism (2), the mixing mechanism (4) comprising a paddle shaft (401) rotatably mounted inside a plurality of the cover tubes (201), a plurality of comb-shaped members (402) being sleeved on the outer side of the paddle shaft (401), and each of the comb-shaped members (402) is correspondingly distributed inside one of the cover tubes (201); A valve mechanism (5) for controlling the flow rate of fermentation gas is provided between the separation mechanism (2) and the fermentation mechanism (3); The mixing mechanism (4) cooperates with the separation mechanism (2) to stir and separate the feces and solid feces introduced into the drip irrigation pipe (1); the separated solid feces enter the fermentation mechanism (3) to ferment and produce biogas; when the equipment stops running, the valve mechanism (5) is used to control the flow of biogas, thereby self-cleaning the separation mechanism (2).

2. A manure returning drip irrigation system according to claim 1, characterized in that: The separation mechanism (2) further comprises a sieve opening (204) on the outside of each of the cover cylinders (201), a first sieve plate (205) and a second sieve plate (209) being fixedly mounted between the two mutually connected cover cylinders (201), the sieve hole diameter of the second sieve plate (209) being smaller than the sieve hole diameter of the first sieve plate (205), and a motor (206) for driving the cover cylinders (201) to rotate being horizontally distributed on the outside of the drip irrigation pipe (1).

3. The manure-returning drip irrigation system according to claim 1 is characterized in that: The fermentation mechanism (3) further comprises a straight pipe (302) connected through the side of the fermentation tank (301), a sludge pump (303) being installed at the end of the straight pipe (302), and a material sprinkling pipe (304) being horizontally connected to the top of the sludge pump (303), wherein the material sprinkling pipe (304) and the drip irrigation pipe (1) are staggered in the vertical direction.

4. A manure returning drip irrigation system according to claim 2, characterized in that: The mixing mechanism (4) further comprises an air pipe (403) rotatably mounted at the end of the paddle shaft (401), the air pipe (403) passing through the bottom of the drip irrigation pipe (1) and connected to the fermentation tank (301), a pressure valve (404) being arranged in the middle of the air pipe (403), an air cavity (405) being formed in the interior of the paddle shaft (401) and the comb-shaped member (402), and being connected to the interior of the fermentation tank (301) through the air pipe (403), and a plug plate (406) being slidably mounted in the interior of one end of each comb-shaped member (402), the plug plates (406) being distributed in the interior of the air cavity (405), and the moving plug plates (406) being pressed and contacted with the side surfaces of the first sieve plate (205) and the second sieve plate (209).

5. The drip irrigation system for returning manure to fields according to claim 2 is characterized in that: The valve mechanism (5) comprises a conducting member (501) connected between the drip irrigation pipe (1) and the fermentation tank (301); a control unit (502) is rotatably mounted inside the conducting member (501); an end of the control unit (502) passes through a side surface of the conducting member (501) and is sleeved with a damping member (503); a ratchet (504) is provided on the outer side of the output end of the motor (206); and a ratchet wheel (505) is kneaded and connected to the outer side of the ratchet (504).

6. A manure returning drip irrigation system according to claim 5, characterized in that: The control part (502) comprises a shaft (5021) rotatably mounted inside the conductive member (501); an end of the shaft (5021) penetrates through a side surface of the conductive member (501) and is sleeved with a damping member (503); a short plate member (5022) and a long plate member (5023) are symmetrically mounted on the outer side of the shaft (5021); and the length of the short plate member (5022) is shorter than the length of the long plate member (5023).

7. A manure returning drip irrigation system according to claim 6, characterized in that: A flange (208) is fixedly mounted on the end of the cover cylinder (201) located on one side, and the outer diameter of the flange (208) is the same as the inner diameter of the drip irrigation pipe (1).

8. The drip irrigation system for returning manure to fields according to claim 7 is characterized in that: The flange (208) and the outer transmission sleeve of the output end of the motor (206) are connected with a first belt (207).

9. The drip irrigation system for returning manure to fields according to claim 4, characterized in that: An elastic member (407) is fixedly connected between each of the plug plates (406) and the comb-shaped member (402).

10. The drip irrigation system for returning manure to fields according to claim 5, characterized in that: A second belt (506) is transmission-sleeved between the ratchet wheel (505) and the damping member (503).

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