Intelligent drip irrigation system and method for liquid manure

Abstract

The application discloses an intelligent liquid manure drip irrigation system and method, wherein the intelligent liquid manure drip irrigation system comprises a liquid manure vehicle, a manure conveying pipe, a liquid manure distributor, a drip irrigation distributor and a controller, and a manure storage tank is used for storing manure; the liquid manure distributor is used for mechanically crushing the manure; a plurality of distribution pipes are used for distributing the liquid manure into a plurality of small flow channels; the drip irrigation distributor is used for forming liquid beads from the plurality of small flow channels respectively, and under the control of a plurality of intelligent nozzles, finally the liquid beads are uniformly discharged in the form of drip irrigation; and the controller is used for controlling a combined pump, a motor and each intelligent nozzle, so as to control a first bidirectional screw rod and a second bidirectional screw rod through the motor respectively, and make the first bidirectional screw rod and the second bidirectional screw rod crush the vertically falling high-viscosity and high-solid-content manure transversely to generate liquid manure with smaller solid particles and better fluidity, and finally realize drip irrigation through the plurality of intelligent nozzles.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to an intelligent drip irrigation system and method for liquid manure. Background Technology

[0002] As the world's largest livestock and poultry producer, my country exhibits a significant trend towards large-scale and intensive farming. Farms with over 10,000 head of livestock commonly employ water-flushing manure processing, producing approximately 3.05 billion tons of liquid manure annually. This type of manure is characterized by high solids content and high viscosity. Especially in Northeast China, where the cold climate makes it difficult to initiate traditional anaerobic fermentation processes, the physical application of liquid manure to the fields has become the primary treatment method.

[0003] Distributors and drip irrigation systems are core equipment for returning manure to the field. Currently, these devices are mainly suitable for conventional biogas slurry fertilizers with low viscosity and low solids content, but there is a lack of intelligent equipment capable of handling high viscosity and high solids content manure. Therefore, when transporting high viscosity manure, blockages and uneven fertilizer distribution are prone to occur. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide an intelligent drip irrigation system and method for liquid manure, which solves the current lack of intelligent equipment for distributing high-viscosity, high-solids-content manure, resulting in easy blockage and uneven fertilization during the transportation of liquid manure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] First, this invention discloses an intelligent drip irrigation system for liquid manure, comprising a liquid manure truck and a manure delivery pipe. The liquid manure truck is equipped with a manure storage tank, and a combined pump is installed at the front end of the liquid manure truck. The inlet of the combined pump is connected to the inside of the manure storage tank. The inlet of the manure delivery pipe is connected to the outlet of the combined pump, and its output end is connected to a primary dual-way pipe, which is a three-way pipe. The input end of the primary dual-way pipe is connected to the output end of the manure delivery pipe. The intelligent drip irrigation system for liquid manure also includes: A liquid manure distributor includes a manure storage tank, in which a first bidirectional spiral rod and a second bidirectional spiral rod are transversely inserted. Conveying blades are spirally arranged around the outer walls of the first bidirectional spiral rod and the second bidirectional spiral rod. Motors are configured at the power input ends of the first bidirectional spiral rod and the second bidirectional spiral rod. A drip irrigation spreader is provided, wherein the liquid inlet of the drip irrigation spreader is connected to the storage tank of the liquid manure distributor and the two output ports of the first-stage dual-pipe output end through two distribution pipes, and the liquid outlet of the drip irrigation spreader is equipped with multiple intelligent nozzles. The controller is connected to the combined pump, the motor, and each smart nozzle. The manure storage tank contains high-viscosity, high-solids-content manure. The liquid manure distributor is used to mechanically crush high-viscosity, high-solids-content manure to produce liquid manure with smaller solid particles and better fluidity. Several distribution pipes are used to distribute the bulk liquid manure into multiple small channels for liquid manure; The drip irrigation spreader is used to form liquid droplets from multiple small channels of liquid manure, and under the control of multiple smart nozzles, the liquid droplets are finally discharged evenly in the form of drip irrigation. The controller is used to control the combined pump, the motor, and each smart nozzle, so that the combined pump draws the high-viscosity, high-solids-content manure loaded in the manure storage tank through the manure delivery pipe into the liquid manure distributor; and controls the first and second bidirectional screw rods through the motor to break up the vertically falling high-viscosity, high-solids-content manure laterally to generate liquid manure with smaller solid particles and better flowability; and finally achieves drip irrigation through multiple smart nozzles.

[0007] Preferably, the manure storage tank has a top cover at its opening, with a left fertilizer inlet and a right fertilizer inlet at each end of the top cover. The left fertilizer inlet of the top cover has a left front inlet and a left rear inlet on its front and rear sides, respectively. When the top cover is closed over the opening of the manure storage tank, the end of the left conveying blade of the first bidirectional spiral rod is opposite to the left front inlet, and the end of the left conveying blade of the second bidirectional spiral rod is opposite to the left rear inlet. The left front inlet and the left rear inlet are connected by a two-stage double-sided left pipe, which is a three-way pipe. The top cover has a right front inlet and a right rear inlet on its front and rear sides, respectively. When the top cover is closed on the opening of the manure storage tank, the right conveying blade of the first bidirectional screw rod is opposite to the right front inlet, and the right conveying blade of the second bidirectional screw rod is opposite to the right rear inlet. The right front inlet and the right rear inlet are connected by a two-stage double-way right pipe, which is a three-way pipe. The secondary dual-distribution left pipe and secondary dual-distribution right pipe of the liquid manure distributor are respectively connected to the two output ends of the primary dual-distribution pipe; the bottom of the manure storage tank is provided with two distribution pipe rows, each distribution pipe row includes several distribution pipes, and the liquid inlet end of each distribution pipe is respectively connected to the interior of the manure storage tank; The inlet end of the drip irrigation spreader is connected to the outlet ends of several distribution pipes in the two distribution pipe rows corresponding to the first and second bidirectional spiral rods of the liquid manure distributor.

[0008] Preferably, each distribution pipe row consists of several distribution pipes arranged closely together. Each distribution pipe is equipped with an air bladder valve, and each air bladder valve is equipped with a pressure sensor. The pressure sensor is used to monitor the liquid pressure of the liquid manure fluid in the manure storage tank. Each air bladder valve is associated with its corresponding pressure sensor. The liquid manure will only flow out when the liquid pressure in the distribution pipe reaches the pressure set by the pressure sensor. Each liquid manure channel, through its tiny flow path, enters the drip irrigation spreader only after passing through its respective air bladder valve in the distribution pipe, thus achieving precise drip irrigation control.

[0009] Preferably, the two ends of the first bidirectional spiral rod are respectively provided with a left spiral to form a left conveying blade and a right spiral to form a right conveying blade, and the two ends of the second bidirectional spiral rod are respectively provided with a left spiral to form a left conveying blade and a right spiral to form a right conveying blade, thereby forming a bidirectional spiral rod, and the ends of the left conveying blade and the ends of the right conveying blade of the bidirectional spiral rod form a converging end. The bidirectional spiral rod is horizontally inserted into the manure storage tank, and when the top cover is closed on the opening of the manure storage tank, the end of the left conveying blade of the bidirectional spiral rod is opposite to the left fertilizer inlet, and the end of the right conveying blade of the bidirectional spiral rod is opposite to the right fertilizer inlet. When the motor is kept running and liquid manure is continuously fed into the left and right manure inlets, the high-viscosity, high-solids-content manure falls onto the left and right conveying blades, respectively. At the same time, the motor drives the bidirectional screw to rotate. The left and right conveying blades of the bidirectional screw push the high-viscosity, high-solids-content manure on them to spiral until it detaches from the bidirectional screw and falls into the bottom of the manure storage tank. Finally, it is discharged through several distribution pipes of the distribution pipe. During the process of the left and right conveying blades of the bidirectional screw driving the manure on them, the bidirectional screw breaks the vertically falling manure laterally, so that the liquid manure is evenly distributed at the bottom of the manure storage tank.

[0010] Preferably, the left conveying blade and the right conveying blade are arranged symmetrically with the midpoint of the bidirectional spiral rod as the center, and under the drive of the motor, the left conveying blade and the right conveying blade can respectively and simultaneously push the liquid manure on them to move spirally from both ends to the middle. A front foreign object box and a rear foreign object box are respectively provided on both sides of the center position of the manure storage tank, and the front foreign object box and the rear foreign object box correspond to the converging end of the bidirectional spiral rod. As the left and right conveying blades push the liquid manure from both ends of the bidirectional spiral rod toward the middle, the solid particles in the liquid manure are simultaneously transported to the collecting end of the bidirectional spiral rod and collected by the front and rear foreign matter boxes on the front and rear sides of the collecting end.

[0011] Preferably, foreign object sensors are respectively installed in the front foreign object box and the rear foreign object box, and each foreign object sensor is connected to the controller. The front foreign object box and the rear foreign object box are used to sense whether there are solid particles or straw inside the front foreign object box and the rear foreign object box.

[0012] Preferably, viscosity sensors are respectively installed at the left front inlet, the left rear inlet, the right front inlet, and the right rear inlet. The viscosity sensors are used to detect the viscosity of the liquid manure before it enters the liquid manure distributor to determine the risk of blockage and to ensure that the sewage can enter the liquid manure distributor.

[0013] Preferably, a flow sensor is installed on the pipe near each smart nozzle. The flow sensor is used to detect the flow rate of the liquid manure sprayed by the smart nozzle, so as to determine whether the sprayed liquid manure is uniform.

[0014] Secondly, this invention also discloses an intelligent drip irrigation method for liquid manure, employing the aforementioned intelligent drip irrigation system for liquid manure, the method comprising: Step A: The controller controls the combined pump, which draws the high-viscosity, high-solids-content manure loaded in the manure storage tank through the manure conveying pipe into the liquid manure distributor, where it falls onto the left and right conveying blades respectively. Step B: The controller controls the motor, which drives the bidirectional screw to rotate. The left and right conveying blades of the bidirectional screw not only break the vertically falling sewage laterally, but also drive the manure on it to move in a spiral motion, mechanically breaking down the high-viscosity, high-solids-content manure to produce liquid manure with smaller solid particles and better flowability, and ensuring that the liquid manure is evenly distributed at the bottom of the storage tank; at the same time, it transports the solid particles in the sewage to the collecting end of the bidirectional screw, where they are received and stored by the front and rear foreign matter boxes on both sides of the collecting end. Step C: When the liquid pressure in the distribution pipe reaches the pressure set by the pressure sensor, the air bladder valve of the distribution pipe opens, and the whole liquid manure is distributed into multiple small channels of liquid manure; the multiple small channels of liquid manure enter the drip irrigation spreader through multiple distribution pipes respectively. Step D: Multiple tiny channels of liquid manure form droplets as they pass through the drip irrigation spreader. The droplets are then evenly distributed under the control of multiple smart nozzles, completing precise drip irrigation.

[0015] Before step A, depending on the viscosity and solids content of the high-viscosity, high-solids-content manure to be applied, select a suitable bidirectional screw from the following: a bidirectional screw with conveying blades without diversion holes and serrations, a bidirectional screw with conveying blades only having diversion holes, and a bidirectional screw with conveying blades only having serrations.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (I) This invention discloses an intelligent drip irrigation system for liquid manure, including a liquid manure truck, a manure delivery pipe, a liquid manure distributor, a drip irrigation spreader and a controller. The liquid manure truck is equipped with a manure storage tank. A combined pump is installed at the front end of the liquid manure truck. The inlet of the combined pump is connected to the inside of the manure storage tank. The inlet of the manure delivery pipe is connected to the outlet of the combined pump. Its output end is connected to a first-stage double-pipe, which is a three-way pipe. The input end of the first-stage double-pipe is connected to the output end of the manure delivery pipe. The liquid manure distributor includes a manure storage tank. A first bidirectional spiral rod and a second bidirectional spiral rod are transversely inserted in the manure storage tank. The outer walls of the first bidirectional spiral rod and the second bidirectional spiral rod are spirally arranged with conveying blades. The power input ends of the first bidirectional spiral rod and the second bidirectional spiral rod are equipped with motors. The inlet of the drip irrigation spreader is connected to the storage tank of the liquid manure distributor and the two outlets of the primary dual-pipe output end via two distribution pipes. The outlet of the drip irrigation spreader is equipped with multiple intelligent nozzles. The controller is connected to the combined pump, motor, and each intelligent nozzle. The storage tank contains high-viscosity, high-solids-content manure. The liquid manure distributor mechanically breaks down the high-viscosity, high-solids-content manure into smaller, more fluid liquid manure particles. Several distribution pipes divide the bulk liquid manure into multiple small channels. The drip irrigation spreader distributes the multiple liquid manure particles into these channels. The manure forms droplets in tiny channels, and under the control of multiple smart nozzles, the droplets are eventually discharged evenly in a drip irrigation manner. The controller controls the combined pump, motor, and each smart nozzle to respectively cause the combined pump to draw high-viscosity, high-solids-content manure loaded in the storage tank through the fertilizer delivery pipe into the liquid manure distributor; and to control the first and second bidirectional spiral rods via the motor to laterally break up the vertically falling high-viscosity, high-solids-content manure, generating liquid manure with smaller solid particles and better flowability; and finally, drip irrigation is achieved through multiple smart nozzles. This invention discloses an intelligent drip irrigation system for liquid manure, which not only prevents manure from clogging the liquid manure distributor but also improves the uniformity of fertilization, solving the problems of easy clogging and uneven fertilization during the transportation of liquid manure.

[0017] (II) This invention discloses an intelligent drip irrigation method for liquid manure, employing the aforementioned intelligent drip irrigation system for liquid manure, comprising the following steps: Step A: The controller controls the combined pump, which draws high-viscosity, high-solids-content manure loaded in the storage tank through the manure delivery pipe into the liquid manure distributor, where it falls onto the left and right delivery blades respectively; Step B: The controller controls the motor, which drives the bidirectional screw to rotate. The left and right delivery blades of the bidirectional screw not only horizontally break up the vertically falling manure but also drive the manure on them to spiral, mechanically breaking up the high-viscosity, high-solids-content manure to produce smaller, more fluid solid particles. Good liquid manure is prepared and evenly distributed at the bottom of the storage tank; simultaneously, solid particles in the manure are transported to the collecting end of the bidirectional spiral rod and stored by the front and rear foreign matter boxes on both sides of the collecting end; Step C: When the liquid pressure in the distribution pipe reaches the pressure set by the pressure sensor, the air bladder valve of the distribution pipe opens, and the overall liquid manure is distributed into multiple small channels; the multiple small channels of liquid manure enter the drip irrigation spreader through multiple distribution pipes; Step D: The multiple small channels of liquid manure form liquid droplets as they pass through the drip irrigation spreader, and the droplets are evenly discharged under the control of multiple intelligent nozzles in the form of drip irrigation, completing precise drip irrigation.

[0018] (III) This invention discloses an intelligent drip irrigation method for liquid manure. Through the deep integration of intelligent control unit and mechanical structure, it realizes intelligent crushing, dynamic diversion, automatic separation of foreign objects and anti-blocking early warning of manure, which improves the automation and precision of the whole process of manure treatment, significantly improves the operation efficiency and fertilizer uniformity, and is suitable for the precise application of full liquid manure in large-scale farms. It solves the practical problems such as the difficulty of matching screw rod with high viscosity and high solid content manure, easy blockage of liquid manure during transportation and poor fertilizer distribution control. It is suitable for the application of full liquid manure in large-scale farms and is suitable for the development of modern agriculture towards intelligence and automation.

[0019] Furthermore, the advantages of the present invention are also reflected in the following aspects: 1) Intelligent adaptation to manure characteristics: Through real-time monitoring by multiple sensors, the screw type and speed are automatically matched to solve the problems of "difficult transportation and poor crushing" of high viscosity and high solids content manure, without the need for manual intervention.

[0020] 2) Dynamic anti-blocking and early warning: Real-time monitoring of pipeline pressure. When abnormality occurs, the corresponding airbag valve is automatically closed and the motor speed is adjusted. Combined with the foreign object separation function of the foreign object box, blockage is avoided from the source, and the continuous operation capability of the equipment is improved.

[0021] 3) Precision drip irrigation control: Through intelligent sprinklers and flow regulation, the drip irrigation range (not less than 8 meters) and flow rate can be precisely adjusted, significantly improving the uniformity of fertilization and adapting to the needs of large-scale field operations. Attached Figure Description

[0022] Figure 1 This is an isometric view of the liquid manure distributor provided in Embodiment 1 of the present invention; Figure 2 This is a left view of the liquid manure distributor provided in Embodiment 1 of the present invention; Figure 3 This is a top view of the interior of the liquid manure distributor provided in Embodiment 1 of the present invention; Figure 4 This is an exploded view of the liquid manure distributor provided in Embodiment 1 of the present invention; Figure 5 An isometric view of the bidirectional screw rod (ordinary type) provided in Embodiment 1 of the present invention; Figure 6 An isometric view of the bidirectional helical rod (flow-diverting orifice type) provided in Embodiment 2 of the present invention; Figure 7 The isometric view of the bidirectional helical rod (serrated type) provided in Embodiment 3 of the present invention; Figure 8 This is a three-dimensional front view of the liquid manure drip irrigation system provided in Embodiment 4 of the present invention; Figure 9 This is a three-dimensional rear view of the liquid manure drip irrigation system provided in Embodiment 4 of the present invention; Figure 10 This is a rear view of the liquid manure drip irrigation system provided in Embodiment 4 of the present invention.

[0023] Figure labeling: 100 - Liquid manure dispenser; 1-Manure storage tank, 11-Top cover, 111-Left front inlet, 112-Left rear inlet, 113-Right front inlet, 114-Right rear inlet, 115-Secondary dual-way left pipe, 116-Secondary dual-way right pipe; 2-Motor; 200-Collision end; 201-Left conveyor blade; 202-Right conveyor blade; 21-First bidirectional screw; 22-Second bidirectional screw; 23-Baffle; 24-Diverter hole; 25-Sawtooth; 3-Distribution pipe, 30-Airbag valve; 40 - End cap; 41 - Front foreign object box; 42 - Rear foreign object box; 5-Liquid manure truck, 50-Manure storage tank, 51-Traction frame, 52-Combination pump, 53-Manure delivery pipe, 54-First-stage dual-branch pipe; 6-Drip irrigation spreader. Detailed Implementation

[0024] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0025] To address the current lack of intelligent equipment for distributing high-viscosity, high-solids-content manure, which leads to blockages and uneven distribution during transport, this invention firstly utilizes a large-diameter manure delivery pipe 53 to transport the manure from the storage tank 50. To prevent blockages, the liquid manure transported within the large-diameter pipe 53 needs to be dispersed. Therefore, this invention designs a liquid manure distributor that can laterally break up vertically falling manure, ensuring even distribution at the bottom of the storage tank 1, a prerequisite for uniform manure discharge. Secondly, to improve fertilization uniformity, each distribution pipe row consists of several closely arranged distribution pipes 3, each equipped with an airbag valve 30 and a pressure sensor for real-time monitoring of operation. Liquid manure is only ejected when the liquid pressure within the distribution pipe 3 reaches the pressure set by the pressure sensor. Therefore, the manure enters the drip irrigation spreader 6 only under the precise control of the airbag valve 30. Since the drip irrigation spreader 6 is equipped with multiple intelligent nozzles at its outlet, and each intelligent nozzle is connected to the controller via a signal line, the drip irrigation spreader 6 can separate the fine channels of multiple liquid manure into droplets. Under the control of the multiple intelligent nozzles, the droplets are then evenly discharged in a drip irrigation manner, ultimately completing precise drip irrigation. In summary, the intelligent drip irrigation system for liquid manure disclosed in this invention can achieve intelligent crushing, dynamic diversion, anti-clogging warning, and precise drip irrigation of high-viscosity, high-solids-content manure, significantly improving operational efficiency and fertilization uniformity, and meeting the field application needs of large-scale farms for full-volume manure return.

[0026] Example 1: Liquid manure distributor Embodiment 1 of the present invention provides a liquid manure distributor, the structure of which will be described in detail below with reference to the accompanying drawings.

[0027] refer to Figures 1 to 5 The liquid manure dispenser includes A manure storage tank 1, the opening of the manure storage tank 1 is equipped with a top cover 11, the top cover 11 is provided with at least one fertilizer inlet, the bottom of the manure storage tank 1 is provided with at least one distribution pipe row, each distribution pipe row includes several distribution pipes 3, and each distribution pipe 3 is respectively connected to the interior of the manure storage tank 1. At least one screw rod, the outer wall of which is spirally surrounded by conveying blades, and the power input end of the screw rod is equipped with a motor 2. The screw rod is transversely inserted into the manure storage tank 1. When the motor 2 is kept running and liquid manure is continuously fed into the manure inlet, the liquid manure first falls onto the conveying blades of the screw rod. At the same time, the motor 2 drives the screw rod to rotate continuously. The conveying blades of the screw rod push the liquid manure on it to move in a spiral motion. When it is close to the bottom of the screw rod, the liquid manure is detached from the screw rod and falls into the bottom of the manure storage tank 1. Finally, it is discharged through several distribution pipes 3 of the distribution pipe. During the process of liquid manure falling onto the conveying blades of the screw rod and spiraling under the push of the conveying blades until it falls from the screw rod, the screw rod breaks up the vertically falling liquid manure laterally, so that the liquid manure is evenly distributed at the bottom of the manure storage tank 1, thereby achieving uniform discharge of liquid manure.

[0028] Furthermore, the top cover 11 is provided with a left fertilizer inlet and a right fertilizer inlet at its two ends, respectively. The two ends of the spiral rod are respectively provided with a left spiral to form a left conveying blade 201 and a right spiral to form a right conveying blade 202, thereby forming a bidirectional spiral rod, and the end of the left conveying blade 201 and the end of the right conveying blade 202 of the bidirectional spiral rod form a converging end 200. The bidirectional spiral rod is horizontally inserted into the manure storage tank 1, and when the top cover 11 is closed on the opening of the manure storage tank 1, the end of the left conveying blade 201 of the bidirectional spiral rod is opposite to the left fertilizer inlet, and the end of the right conveying blade 202 of the bidirectional spiral rod is opposite to the right fertilizer inlet. When the motor 2 is kept running and liquid manure is continuously fed into the left and / or right manure inlets, the liquid manure falls onto the left conveying blade 201 and / or the right conveying blade 202, respectively. At the same time, the motor 2 drives the bidirectional screw to rotate. The left and right conveying blades 201 and 202 of the bidirectional screw push the liquid manure on them to move in a spiral motion until it is detached from the bidirectional screw and falls into the bottom of the manure storage tank 1. Finally, it is discharged through several distribution pipes 3 of the distribution pipe. During the process of the left conveying blade 201 and the right conveying blade 202 of the bidirectional screw driving the liquid manure on them, the bidirectional screw breaks the vertically falling liquid manure laterally, so that the liquid manure is evenly distributed at the bottom of the manure storage tank 1.

[0029] A bidirectional screw rod is configured with two distribution pipe rows. For convenient discharge control, each distribution pipe row consists of several closely arranged distribution pipes 3, and each distribution pipe 3 is equipped with an airbag valve 30. Specifically, each airbag valve 30 is equipped with a pressure sensor, which is used to detect the liquid pressure of the liquid manure fluid in the manure storage tank 1. Each airbag valve 30 is associated with its corresponding pressure sensor. The liquid manure only flows out when the liquid pressure in the distribution pipe 3 reaches the pressure set by the pressure sensor. Therefore, this pressure sensor can not only monitor the operating status in real time, but also prevent damage to the equipment due to excessive pressure.

[0030] All the distribution pipes 3 of the two distribution pipe rows are evenly arranged at the bottom of the manure storage tank 1 directly below the bidirectional spiral rod, so that the liquid manure that detaches from the bidirectional spiral rod and falls into the bottom of the manure storage tank 1 can be evenly received.

[0031] In order to collect large solid particles in liquid manure, the left conveying blade 201 and the right conveying blade 202 are symmetrically arranged with the midpoint of the bidirectional spiral rod as the center. Under the drive of the motor 2, the left conveying blade 201 and the right conveying blade 202 can push the liquid manure on them to move spirally from both ends to the middle.

[0032] A front foreign matter box 41 and a rear foreign matter box 42 are respectively provided on both sides of the center of the manure storage tank 1, and the front foreign matter box 41 and the rear foreign matter box 42 correspond to the collecting end 200 of the bidirectional spiral rod. Both the front foreign matter box 41 and the rear foreign matter box 42 are solid particle storage boxes.

[0033] As the left conveying blade 201 and the right conveying blade 202 simultaneously push the liquid manure from both ends of the bidirectional spiral rod toward the middle, the solid particles in the liquid manure are simultaneously transported to the collecting end 200 of the bidirectional spiral rod, and collected by the front foreign matter box 41 and the rear foreign matter box 42 on both sides of the collecting end 200.

[0034] In order to discharge the solid particles collected in the front foreign matter box 41 and the rear foreign matter box 42, end caps 40 are provided on the outer sides of the front foreign matter box 41 and the rear foreign matter box 42.

[0035] As a specific embodiment, the liquid manure distributor includes a first bidirectional spiral rod 21 and a second bidirectional spiral rod 22. The manure storage tank 1 is a rectangular box. The first bidirectional spiral rod 21 and the second bidirectional spiral rod 22 are arranged side by side and at the same height in the manure storage tank 1. The first bidirectional spiral rod 21 and the second bidirectional spiral rod 22 are separated by a partition 23, thereby forming independent spaces for the spaces where the first bidirectional spiral rod 21 and the second bidirectional spiral rod 22 are located. The output shaft of the motor 2 is connected to the power input ends of the first bidirectional screw rod 21 and the second bidirectional screw rod 22 through a transmission mechanism; The top cover 11 has a left front inlet 111 and a left rear inlet 112 on its front and rear sides respectively. When the top cover 11 is closed on the opening of the manure storage tank 1, the left conveying blade 201 of the first bidirectional spiral rod 21 is opposite to the left front inlet 111, and the left conveying blade 201 of the second bidirectional spiral rod 22 is opposite to the left rear inlet 112. The left front inlet 111 and the left rear inlet 112 are connected to a secondary double-splitting left pipe 115, which is a three-way pipe. The left front inlet 111 and the left rear inlet 112 are respectively connected to the two output ends of the secondary double-splitting left pipe 115. The top cover 11 has a right front inlet 113 and a right rear inlet 114 on its front and rear sides, respectively. When the top cover 11 is closed on the opening of the manure storage tank 1, the end of the right conveying blade 202 of the first bidirectional spiral rod 21 is opposite to the right front inlet 113, and the end of the right conveying blade 202 of the second bidirectional spiral rod 22 is opposite to the right rear inlet 114; the right front inlet 113 and the right rear inlet 114 are connected to a secondary dual-way right pipe 116, which is a three-way pipe, and the right front inlet 113 and the right rear inlet 114 are respectively connected to the two output ends of the secondary dual-way right pipe 116; The converging end 200 of the first bidirectional spiral rod 21 is opposite to the front foreign matter box 41, and the converging end 200 of the second bidirectional spiral rod 22 is opposite to the rear foreign matter box 42.

[0036] More specifically, two distribution pipe rows are configured at the bottom of the independent space where the first bidirectional screw rod 21 is located, and two other distribution pipe rows are configured at the bottom of the independent space where the second bidirectional screw rod 22 is located.

[0037] Preferably, the left conveying blade 201 of the first bidirectional spiral rod 21 is opposite to the left conveying blade 201 of the second bidirectional spiral rod 22, and the right conveying blade 202 of the first bidirectional spiral rod 21 is opposite to the right conveying blade 202 of the second bidirectional spiral rod 22. During the rotation of the first bidirectional spiral rod 21 and the second bidirectional spiral rod 22 with the motor, the rotation directions of the first bidirectional spiral rod 21 and the second bidirectional spiral rod 22 are opposite, that is, when the first bidirectional spiral rod 21 rotates counterclockwise, the second bidirectional spiral rod 22 rotates clockwise.

[0038] In order to distinguish it from the bidirectional screw rod with diversion hole type conveying blade in Example 2 and the bidirectional screw rod with serrated type conveying blade in Example 3, the bidirectional screw rod provided in Example 1 has a common type of conveying blade. That is, the bidirectional screw rod used in Example 1 is a bidirectional screw rod without diversion holes and without serrated conveying blades.

[0039] Example 2: Conveyor blades with diversion holes in a bidirectional screw rod Unlike the bidirectional screw in Embodiment 1, Embodiment 2 of the present invention has made improvements to its conveying blades, as detailed below: To divert high-viscosity liquid manure, the left conveying blade 201 and right conveying blade 202 of the bidirectional screw are evenly spaced and densely covered with diversion holes 24, such as... Figure 2 As shown.

[0040] Example 3: A conveyor blade with a serrated edge on a bidirectional spiral rod. Unlike the bidirectional screw in Embodiment 1, Embodiment 3 of the present invention has made improvements to its conveying blades, as detailed below: To break down solids in liquid manure, the edges of the left conveying blade 201 and the right conveying blade 202 of the bidirectional screw are provided with serrations 25, such as... Figure 7 As shown.

[0041] In Example 1, the bidirectional screw rod not only lacks serrations on the edge of the conveying blade, but also lacks through holes on the cross-sectional wall of the conveying blade. It can only crush liquid manure that is conveyed to and passes through it, and can be called the standard type.

[0042] In Example 2, the conveying blades of the bidirectional screw have several through holes circumferentially arranged on the wall surface of the cross section. Liquid manure can flow through the through holes, which is used to transform large solids in the liquid manure into small solids and allow them to pass through, thereby obtaining a liquid manure fluid containing solids of uniform size. At the same time, due to the diversion of high-viscosity liquid manure by the surface holes, the flow resistance of the liquid manure can also be reduced.

[0043] The conveying blades of the bidirectional screw in Example 3 have serrated edges, and the toothed protrusions are used to break up large solids such as straw clumps in liquid manure.

[0044] Example 4: Intelligent Drip Irrigation System for Liquid Manure Embodiment 4 of the present invention provides an intelligent drip irrigation system for liquid manure, including the liquid manure distributor 100 of Embodiment 1, 2 or 3. This part is the focus of the present invention, and its structure will be described in detail below with reference to the accompanying drawings.

[0045] refer to Figures 8 to 10 The liquid manure drip irrigation system includes: A liquid manure truck 5 is equipped with a manure storage tank 50 for loading liquid manure. A combined pump 52 is located at the front end of the liquid manure truck 5, and the inlet of the combined pump 52 is connected to the interior of the manure storage tank 50. Specifically, a towing frame 51 is located at the front end of the liquid manure truck 5, and the combined pump 52 is mounted on the towing frame 51.

[0046] The fertilizer delivery pipe 53 has its inlet connected to the outlet of the combined pump 52, and its output end is connected to a primary dual-pipe 54, which is a three-way pipe. The input end of the primary dual-pipe 54 is connected to the output end of the fertilizer delivery pipe 53.

[0047] A liquid manure distributor 100 includes a manure storage tank 1. A first bidirectional spiral rod 21 and a second bidirectional spiral rod 22 are transversely inserted into the manure storage tank 1. Conveying blades are spirally arranged around the outer walls of the first bidirectional spiral rod 21 and the second bidirectional spiral rod 22. A motor 2 is configured at the power input end of the first bidirectional spiral rod 21 and the second bidirectional spiral rod 22.

[0048] A drip irrigation spreader 6 is provided. The liquid inlet of the drip irrigation spreader 6 is connected to the manure storage tank 1 of the liquid manure distributor 100 and the two output ports of the output end of the first-stage dual-pipe 54 through two distribution pipes. The liquid outlet of the drip irrigation spreader 6 is equipped with multiple intelligent nozzles.

[0049] The controller is connected to the combined pump 52, the motor 2, and each smart nozzle.

[0050] The manure storage tank 50 contains high-viscosity, high-solids-content manure. The liquid manure distributor 100 is used to mechanically crush high-viscosity, high-solids-content manure to produce liquid manure with smaller solid particles and better fluidity. Several distribution pipes 3 are used to distribute the whole liquid manure into multiple small channels of liquid manure; The drip irrigation spreader 6 is used to form liquid droplets from multiple small channels of liquid manure, and under the control of multiple smart nozzles, the liquid droplets are finally discharged evenly in the form of drip irrigation. The controller is used to control the combined pump 52, the motor 2, and each smart nozzle, so that the combined pump 52 draws the high-viscosity, high-solids-content manure loaded in the manure storage tank 50 through the manure delivery pipe 53 into the liquid manure distributor 100; and controls the first bidirectional spiral rod 21 and the second bidirectional spiral rod 22 through the motor 2, so that the first bidirectional spiral rod 21 and the second bidirectional spiral rod 22 respectively break the vertically falling high-viscosity, high-solids-content manure laterally to generate liquid manure with smaller solid particles and better flowability; and finally realizes drip irrigation through multiple smart nozzles.

[0051] Preferably, the liquid manure truck 5 is provided with a sludge removal port on its roof.

[0052] Preferably, the liquid manure truck 5 is provided with a gate valve and a manure loading port on its side, and the liquid manure inlet is provided with a gate valve.

[0053] Specifically, the towing frame 51 is a three-point suspension frame, which is set at the front end of the liquid manure truck 5, and the combined pump 52 is mounted on the towing frame 51.

[0054] Specifically, the drip irrigation spreader 6 is located at the rear end of the liquid manure truck 5. The drip irrigation spreader 6 can complete drip irrigation with a width of not less than 8 meters.

[0055] In one specific implementation, the manure storage tank 1 is equipped with a top cover 11 at its opening, and the top cover 11 has a left manure inlet and a right manure inlet at its two ends, respectively. The top cover 11 has a left front inlet 111 and a left rear inlet 112 on its front and rear sides respectively. When the top cover 11 is closed on the opening of the manure storage tank 1, the left conveying blade 201 of the first bidirectional spiral rod 21 is opposite to the left front inlet 111, and the left conveying blade 201 of the second bidirectional spiral rod 22 is opposite to the left rear inlet 112. The left front inlet 111 and the left rear inlet 112 are connected by a secondary double-sided left pipe 115, which is a three-way pipe. The top cover 11 has a right front inlet 113 and a right rear inlet 114 on its front and rear sides respectively. When the top cover 11 is closed on the opening of the manure storage tank 1, the right conveying blade 202 of the first bidirectional spiral rod 21 is opposite to the right front inlet 113, and the right conveying blade 202 of the second bidirectional spiral rod 22 is opposite to the right rear inlet 114. The right front inlet 113 and the right rear inlet 114 are connected by a secondary double-ended right pipe 116, which is a three-way pipe. The secondary dual-distribution left pipe 115 and secondary dual-distribution right pipe 116 of the liquid manure distributor 100 are respectively connected to the two output ends of the primary dual-distribution pipe 54; the bottom of the manure storage tank 1 is provided with two distribution pipe rows, each distribution pipe row including several distribution pipes 3, and the liquid inlet end of each distribution pipe 3 is respectively connected to the interior of the manure storage tank 1. The inlet end of the drip irrigation spreader 6 is connected to the outlet ends of several distribution pipes 3 of the two distribution pipe rows corresponding to the first bidirectional spiral rod 21 and the second bidirectional spiral rod 22 of the liquid manure distributor 100.

[0056] Specifically, the drip irrigation spreader 6 is equipped with 16 smart nozzles at the liquid outlet end, and each smart nozzle is connected to the controller via a signal line.

[0057] To prevent sewage from clogging the liquid manure distributor 100, firstly, the two ends of the first bidirectional spiral rod 21 are respectively provided with a left spiral to form a left conveying blade 201 and a right spiral to form a right conveying blade 202, and the two ends of the second bidirectional spiral rod 22 are respectively provided with a left spiral to form a left conveying blade 201 and a right spiral to form a right conveying blade 202, thereby forming a bidirectional spiral rod, and the end of the left conveying blade 201 and the end of the right conveying blade 202 of the bidirectional spiral rod form a converging end 200; The bidirectional spiral rod is horizontally inserted into the manure storage tank 1, and when the top cover 11 is closed on the opening of the manure storage tank 1, the end of the left conveying blade 201 of the bidirectional spiral rod is opposite to the left fertilizer inlet, and the end of the right conveying blade 202 of the bidirectional spiral rod is opposite to the right fertilizer inlet. When the motor 2 is kept running and liquid manure is continuously fed into the left and right manure inlets, the high-viscosity, high-solids-content manure falls onto the left conveying blade 201 and the right conveying blade 202, respectively. At the same time, the motor 2 drives the bidirectional screw to rotate. The left and right conveying blades 201 and 202 of the bidirectional screw push the high-viscosity, high-solids-content manure on them to move in a spiral motion until it is detached from the bidirectional screw and falls into the bottom of the manure storage tank 1. Finally, it is discharged through several distribution pipes 3 of the distribution pipe. During the process of the left conveying blade 201 and the right conveying blade 202 of the bidirectional screw driving the manure on them, the bidirectional screw breaks the vertically falling manure horizontally, so that the liquid manure is evenly distributed at the bottom of the manure storage tank 1.

[0058] Secondly, in order to promptly transport foreign objects to the front foreign object box 41 and the rear foreign object box 42 for storage and collection, the left conveying blade 201 and the right conveying blade 202 are symmetrically arranged with the midpoint of the bidirectional spiral rod as the center. Under the drive of the motor 2, the left conveying blade 201 and the right conveying blade 202 can push the liquid manure on them to move spirally from both ends to the middle, respectively and simultaneously. The manure storage tank 1 has a front foreign matter box 41 and a rear foreign matter box 42 respectively located on both sides of the center position, and the front foreign matter box 41 and the rear foreign matter box 42 correspond to the converging end 200 of the bidirectional spiral rod. As the left conveying blade 201 and the right conveying blade 202 simultaneously push the liquid manure from both ends of the bidirectional spiral rod toward the middle, the solid particles in the liquid manure are simultaneously transported to the collecting end 200 of the bidirectional spiral rod, and collected by the front foreign matter box 41 and the rear foreign matter box 42 on both sides of the collecting end 200.

[0059] Finally, to facilitate the detection of solid particles or straw, foreign object sensors are respectively installed in the front foreign object box 41 and the rear foreign object box 42, and each foreign object sensor is connected to the controller; the front foreign object box 41 and the rear foreign object box 42 are used to detect whether there are solid particles or straw in the front foreign object box 41 and the rear foreign object box 42.

[0060] To improve the uniformity of fertilization, each distribution pipe row is composed of several distribution pipes 3 arranged closely together. Each distribution pipe 3 is equipped with an airbag valve 30, and each airbag valve 30 is equipped with a pressure sensor. The pressure sensor is used to monitor the liquid pressure of the liquid manure fluid in the manure storage tank 1, and each airbag valve 30 is associated with its corresponding pressure sensor. The liquid manure will only flow out when the liquid pressure in the distribution pipe 3 reaches the pressure set by the pressure sensor. Each liquid manure, through its tiny flow channel, enters the drip irrigation spreader 6 only under the control of its respective airbag valve 30 when passing through the distribution pipe 3, thereby achieving precise drip irrigation control.

[0061] As the left conveying blade 201 and right conveying blade 202 of the bidirectional screw drive the sewage on them, the bidirectional screw breaks the vertically falling sewage laterally, so that the sewage is evenly distributed at the bottom of the sewage storage tank 1; at the same time, it transports the solid particles in the sewage to the collecting end 200 of the bidirectional screw, and is received and stored by the front foreign matter box 41 and the rear foreign matter box 42 on the front and rear sides of the collecting end 200.

[0062] To assess the risk of blockage and ensure that sewage can enter the liquid manure distributor 100, viscosity sensors are installed at the left front inlet 111, the left rear inlet 112, the right front inlet 113, and the right rear inlet 114, respectively. The viscosity sensors are used to detect the viscosity of the liquid manure before it enters the liquid manure distributor 100.

[0063] To determine whether the liquid manure sprayed is even, a flow sensor is installed on the pipe near each smart nozzle. The flow sensor is used to detect the flow rate of the liquid manure sprayed from the smart nozzle.

[0064] Specifically, this controller is a PLC central control system. Example 5: An intelligent drip irrigation method for liquid manure Embodiment 5 of the present invention provides an intelligent drip irrigation method for liquid manure, using the intelligent drip irrigation system for liquid manure provided in Embodiment 4. The method includes the following steps: Step A: The controller controls the combined pump 52, which draws the high-viscosity, high-solids-content manure loaded in the manure storage tank 50 through the manure conveying pipe 53 into the liquid manure distributor 100, where it falls onto the left conveying blade 201 and the right conveying blade 202 respectively. Step B: The controller controls the motor 2, which drives the bidirectional screw to rotate. The left conveying blade 201 and the right conveying blade 202 of the bidirectional screw not only break the vertically falling sewage laterally, but also drive the manure on it to move in a spiral motion, mechanically breaking the high-viscosity, high-solids-content manure to produce liquid manure with smaller solid particles and better flowability, and making the liquid manure evenly distributed at the bottom of the manure storage tank 1; at the same time, it transports the solid particles in the sewage to the collecting end 200 of the bidirectional screw, and is received and stored by the front foreign matter box 41 and the rear foreign matter box 42 on both sides of the collecting end 200. Step C: When the liquid pressure in the distribution pipe 3 reaches the pressure set by the pressure sensor, the air bladder valve 30 of the distribution pipe 3 of the distribution pipe row opens, and the whole liquid manure is distributed into multiple small channels of liquid manure; the multiple small channels of liquid manure enter the drip irrigation spreader 6 through multiple distribution pipes 3 respectively. Step D: Multiple fine channels of liquid manure form droplets as they pass through the drip irrigation spreader 6. The droplets are then evenly discharged under the control of multiple smart nozzles in the form of drip irrigation, thus completing precise drip irrigation.

[0065] As a preferred option, firstly, prior to step A, based on the required viscosity and solids content of the high-viscosity, high-solids-content manure to be applied, a suitable bidirectional screw is selected from the following: a bidirectional screw with conveying blades without diversion holes and serrations, a bidirectional screw with conveying blades only having diversion holes, and a bidirectional screw with conveying blades only having serrations.

[0066] Specifically, a bidirectional screw rod is selected based on the characteristics of the liquid manure. If the liquid manure to be processed is high-viscosity liquid manure, then the bidirectional screw rod with the left conveying blade 201 and right conveying blade 202 of the diversion hole type conveying blade of Example 2 is selected. If the liquid manure to be processed is high-solids liquid manure, then the bidirectional screw rod with the serrated edges of the left conveying blade 201 and right conveying blade 202 of Example 3 is selected.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent drip irrigation system for liquid manure, comprising a liquid manure truck (5) and a manure delivery pipe (53), wherein the liquid manure truck (5) is equipped with a manure storage tank (50), and a combined pump (52) is installed at the front end of the liquid manure truck (5), the inlet of the combined pump (52) being connected to the interior of the manure storage tank (50); the inlet of the manure delivery pipe (53) is connected to the outlet of the combined pump (52), and its output end is connected to a primary dual-pipe (54), the primary dual-pipe (54) being a three-way pipe, the input end of the primary dual-pipe (54) being connected to the output end of the manure delivery pipe (53); characterized in that, Also includes: A liquid manure distributor (100) includes a manure storage tank (1), in which a first bidirectional spiral rod (21) and a second bidirectional spiral rod (22) are transversely inserted. The outer walls of the first bidirectional spiral rod (21) and the second bidirectional spiral rod (22) are spirally surrounded by conveying blades. The power input ends of the first bidirectional spiral rod (21) and the second bidirectional spiral rod (22) are equipped with motors (2). A drip irrigation spreader (6) is provided. The liquid inlet of the drip irrigation spreader (6) is connected to the manure storage tank (1) of the liquid manure distributor (100) and the two output ports of the first-stage double-pipe (54) through two distribution pipes. The liquid outlet of the drip irrigation spreader (6) is equipped with multiple intelligent nozzles. The controller is connected to the combined pump (52), the motor (2), and each smart nozzle, respectively; The manure storage tank (50) contains high-viscosity, high-solids-content manure. The liquid manure distributor (100) is used to mechanically crush high-viscosity, high-solids-content manure to produce liquid manure with smaller solid particles and better fluidity. Several distribution pipes (3) are used to distribute the whole liquid manure into multiple small channels of liquid manure; The drip irrigation spreader (6) is used to form droplets from the small channels of multiple liquid manure, and under the control of multiple smart nozzles, the droplets are finally discharged evenly in the form of drip irrigation. The controller is used to control the combined pump (52), the motor (2), and each smart nozzle, so that the combined pump (52) draws the high-viscosity, high-solids-content manure loaded in the manure storage tank (50) through the manure delivery pipe (53) into the liquid manure distributor (100); and controls the first bidirectional screw rod (21) and the second bidirectional screw rod (22) through the motor (2), so that the first bidirectional screw rod (21) and the second bidirectional screw rod (22) respectively break the vertically falling high-viscosity, high-solids-content manure laterally to generate liquid manure with smaller solid particles and better fluidity; and finally realizes drip irrigation through multiple smart nozzles; The manure storage tank (1) is equipped with a top cover (11) at its opening. The top cover (11) has a left fertilizer inlet and a right fertilizer inlet at its two ends. The left fertilizer inlet of the top cover (11) has a left front inlet (111) and a left rear inlet (112) on its front and rear sides respectively. When the top cover (11) is closed over the opening of the manure storage tank (1), The left conveying blade (201) of the first bidirectional screw (21) is located at one end opposite to the left front inlet (111), and the left conveying blade (201) of the second bidirectional screw (22) is located at one end opposite to the left rear inlet (112); the left front inlet (111) and the left rear inlet (112) are connected by a secondary double-splitting left pipe (115), which is a three-way pipe; the right front inlet (113) and the right rear inlet (114) are respectively provided on the front and rear sides of the right fertilizer inlet of the top cover (11). When the top cover (11) is closed on the opening of the manure storage tank (1), The right conveying blade (202) of the first bidirectional screw (21) is located at one end opposite to the right front inlet (113), and the right conveying blade (202) of the second bidirectional screw (22) is located at one end opposite to the right rear inlet (114); the right front inlet (113) and the right rear inlet (114) are connected by a secondary bidirectional right pipe (116), which is a three-way pipe; the secondary bidirectional left pipe (115) and the secondary bidirectional right pipe (116) of the liquid manure distributor (100) are connected by a secondary bidirectional left pipe (115) and a secondary bidirectional right pipe (116). The two output ends of the first-stage double-pipe (54) are respectively connected to each other; the bottom of the manure storage tank (1) is provided with two distribution pipe rows, each distribution pipe row includes several distribution pipes (3), and the liquid inlet end of each distribution pipe (3) is respectively connected to the interior of the manure storage tank (1); the liquid inlet end of the drip irrigation spreader (6) is respectively connected to the liquid outlet end of several distribution pipes (3) of the two distribution pipe rows corresponding to the first bidirectional spiral rod (21) and the second bidirectional spiral rod (22) of the liquid manure distributor (100); Each distribution pipe row consists of several distribution pipes (3) arranged closely together. Each distribution pipe (3) is equipped with an airbag valve (30), and each airbag valve (30) is equipped with a pressure sensor. The pressure sensor is used to monitor the liquid pressure of the liquid manure fluid in the manure storage tank (1). Each airbag valve (30) is associated with its corresponding pressure sensor. When the liquid pressure in the distribution pipe (3) reaches the pressure set by the pressure sensor, the liquid manure will flow out. When the small flow channel of each liquid manure passes through the distribution pipe (3), it will enter the drip irrigation spreader (6) under the control of its respective airbag valve (30), thereby realizing the control of precise drip irrigation. The first bidirectional spiral rod (21) has a left spiral forming a left conveying blade (201) and a right spiral forming a right conveying blade (202) at both ends, and the second bidirectional spiral rod (22) has a left spiral forming a left conveying blade (201) and a right spiral forming a right conveying blade (202) at both ends, thus forming a bidirectional spiral rod, and the end of the left conveying blade (201) and the end of the right conveying blade (202) of the bidirectional spiral rod form a converging end (200); the bidirectional spiral rod is transversely inserted into the manure storage tank (1), and when the top cover (11) is closed on the opening of the manure storage tank (1), the end of the left conveying blade (201) of the bidirectional spiral rod is opposite to the left fertilizer inlet, and the end of the right conveying blade (202) of the bidirectional spiral rod is opposite to the right fertilizer inlet; when the motor is kept in place ( 2) When the liquid manure is continuously fed into the left and right manure inlets while the manure is in the start-up state, the high viscosity and high solid content manure falls onto the left conveying blade (201) and the right conveying blade (202) respectively. At the same time, the motor (2) drives the bidirectional screw to rotate. The left conveying blade (201) and the right conveying blade (202) of the bidirectional screw push the high viscosity and high solid content manure on it to move in a spiral motion until it is detached from the bidirectional screw and falls into the bottom of the manure storage tank (1). Finally, it is discharged through several distribution pipes (3) of the distribution pipe. During the process of the manure being pushed by the left conveying blade (201) and the right conveying blade (202) of the bidirectional screw, the bidirectional screw breaks the vertically falling manure laterally, so that the liquid manure is evenly distributed at the bottom of the manure storage tank (1). The left conveying blade (201) and the right conveying blade (202) are symmetrically arranged with the midpoint of the bidirectional spiral rod as the center. Under the drive of the motor (2), the left conveying blade (201) and the right conveying blade (202) can push the liquid manure on them to move spirally from both ends to the middle, respectively and simultaneously. A front foreign matter box (41) and a rear foreign matter box (42) are respectively provided on both sides of the center position of the manure storage tank (1). The rear foreign matter box (42) corresponds to the collection end (200) of the bidirectional spiral rod; when the left conveying blade (201) and the right conveying blade (202) push the liquid manure from both ends of the bidirectional spiral rod to the middle spiral motion, the solid particles in the liquid manure are transported to the collection end (200) of the bidirectional spiral rod and collected by the front foreign matter box (41) and the rear foreign matter box (42) on both sides of the collection end (200); Foreign object sensors are respectively installed in the front foreign object box (41) and the rear foreign object box (42), and each foreign object sensor is connected to the controller; the front foreign object box (41) and the rear foreign object box (42) are used to sense whether there are solid particles or straw in the front foreign object box (41) and the rear foreign object box (42); Viscosity sensors are respectively installed at the left front inlet (111), the left rear inlet (112), the right front inlet (113), and the right rear inlet (114). The viscosity sensors are used to detect the viscosity of the liquid manure before it enters the liquid manure distributor (100) in order to determine the risk of blockage and to ensure that the sewage can enter the liquid manure distributor (100). A flow sensor is installed on the pipe near each smart nozzle. The flow sensor is used to detect the flow rate of the liquid manure sprayed by the smart nozzle, in order to determine whether the liquid manure is sprayed evenly.

2. An intelligent drip irrigation method for liquid manure, employing the intelligent drip irrigation system for liquid manure as described in claim 1, characterized in that, include: Step A: The controller controls the combined pump (52), which draws the high-viscosity, high-solids-content manure loaded in the manure storage tank (50) through the manure conveying pipe (53) into the liquid manure distributor (100), where it falls onto the left conveying blade (201) and the right conveying blade (202) respectively. Step B: The controller controls the motor (2), which drives the bidirectional screw to rotate. The left conveying blade (201) and right conveying blade (202) of the bidirectional screw not only break the vertically falling sewage laterally, but also drive the manure on it to move in a spiral motion, mechanically breaking the high-viscosity, high-solids-content manure, so as to generate liquid manure with smaller solid particles and better fluidity, and make the liquid manure evenly distributed at the bottom of the manure storage tank (1); at the same time, it transports the solid particles in the sewage to the collection end (200) of the bidirectional screw, and is received and stored by the front foreign matter box (41) and the rear foreign matter box (42) on both sides of the collection end (200); Step C: When the liquid pressure in the distribution pipe (3) reaches the pressure set by the pressure sensor, the air bladder valve (30) of the distribution pipe (3) of the distribution pipe row opens, and the whole liquid manure is distributed into multiple small channels of liquid manure; the multiple small channels of liquid manure enter the drip irrigation spreader (6) through multiple distribution pipes (3). Step D: Multiple small channels of liquid manure form droplets as they pass through the drip irrigation spreader (6). The droplets are then evenly discharged under the control of multiple smart nozzles in the form of drip irrigation, thus completing precise drip irrigation.

3. The intelligent drip irrigation method for liquid manure according to claim 2, characterized in that, Before step A, depending on the viscosity and solids content of the high-viscosity, high-solids-content manure to be applied, select a suitable bidirectional screw from the following: a bidirectional screw with conveying blades without diversion holes and serrations, a bidirectional screw with conveying blades only having diversion holes, and a bidirectional screw with conveying blades only having serrations.

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