Anti-clogging intelligent irrigation system based on biogas slurry concentration and purification

Abstract

The utility model belongs to the technical field of biogas slurry resourceful treatment, and discloses an anti-clogging intelligent irrigation system based on biogas slurry concentration and purification, which comprises a multi-stage filter tank, one side of the multi-stage filter tank is communicated with a liquid guide pipe, and the tail end of the liquid guide pipe is connected with a three-stage filter. A liquid outlet of the third-stage filter is connected with the side of the screen filter through a three-opening liquid inlet nozzle, nutrient substances and active ingredients in the biogas slurry can be intercepted through the combined biogas slurry filtering, concentrating and purifying device, namely a biogas slurry concentrated solution, and the biogas slurry concentrated solution can be precisely conveyed to a fertilizer mixing tank through a liquid pumping pipe; the combined biogas slurry filtering, concentrating and purifying device is a progressive filtering system and comprises a three-stage filter, a screen filter and a concentrating filter, after biogas slurry is filtered by the progressive filtering system, suspended solids, colloids and other impurities can be filtered out, the biogas slurry becomes biogas slurry permeate, and the biogas slurry permeate can meet the agricultural irrigation standard and can be used for farm irrigation.

Description

Technical Field

[0001] The utility model belongs to the technical field of biogas slurry resource processing, in particular to an anti-clogging intelligent irrigation system based on biogas slurry concentration and purification. Background Art

[0002] Biogas slurry is rich in nutrients and has strong fast-acting properties. It is a multi-element fast-acting compound fertilizer. According to measurements, one ton of biogas slurry has the effect of ≥100kg of organic fertilizer. Using biogas slurry concentration and purification and integrated drip irrigation technology and equipment for biogas slurry irrigation is an effective way and method to utilize biogas slurry resources.

[0003] At present, the frequent blockage problems of related domestic biogas slurry concentration and purification equipment and sprinklers have increased the difficulty of popularization. The reason is that the drip irrigation system terminal has high requirements for irrigation water quality, and the drip irrigation pipe is generally in direct contact with the ground. The mud, fertilizer residue or weeds in the soil enter the dripper, which can easily cause the drip irrigation system to be blocked, seriously affecting the drip irrigation performance and even causing the system to be scrapped. In addition, during drip irrigation, the pipe is filled with water and the pressure on crops may cause the crops to die and cause economic losses. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the utility model provides an anti-clogging intelligent irrigation system based on sludge concentration and purification, which can solve the clogging problems of related sludge concentration and purification equipment and sprinklers, prevent the drippers from being blocked by debris, and avoid the branches from pressing on crops and causing economic losses.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an anti-clogging intelligent irrigation system based on biogas slurry concentration and purification, comprising a multi-stage filtering pool, one side of the multi-stage filtering pool is connected to a liquid guide pipe, the end of the liquid guide pipe is connected to a three-stage filter, the liquid outlet of the three-stage filter is connected to the side of the screen filter through three liquid inlet nozzles, the liquid outlet of the screen filter is connected to the top of the concentration filter through a single liquid inlet nozzle, three liquid extraction pipes are fixedly installed on the outside of the three-stage filter, the screen filter and the concentration filter, the three liquid extraction pipes are connected to the top of the fertilizer mixing tank through a first pipe, a liquid level meter is fixedly installed on the upper inner side of the fertilizer mixing tank, the side center of the fertilizer mixing tank is connected to the third pipe, a plurality of second flow controllers are fixedly installed above the third pipe, a plurality of semi-cylindrical plates are fixedly installed below the third pipe, and a supporting frame is fixedly installed on the lower part of the semi-cylindrical plate.

[0006] Preferably, a first valve and a first flow controller are provided on the liquid guide tube, a second valve is provided on the three-port liquid inlet nozzle, a third valve is provided on the single-port liquid inlet nozzle, the liquid outlet of the concentration filter faces the clear water tank, a fourth valve is provided on the liquid extraction pipe, the clear water tank is connected to the fertilizer mixing tank through a second pipe, a fertilizer injector and a mixer are fixedly installed on the top of the fertilizer mixing tank, propeller blades are evenly distributed on the lower part of the mixer, the third pipe is connected to the arc hub, a dripper is fixedly installed inside the semi-cylindrical plate, the dripper is connected to the rotating fan blades, and small holes are evenly arranged on the dripper.

[0007] Preferably, an aeration device is fixedly installed inside the multi-stage filter tank, and three filter plates with mounting grooves are staggered inside the multi-stage filter tank in directions parallel and perpendicular to the liquid guide tube. The filter plates divide the multi-stage filter tank into four spaces, including a first space, a second space, a third space and a fourth space. The filter plates can be installed and removed through the mounting grooves, and a 30-mesh detachable filter screen, a 60-mesh detachable filter screen and a 100-mesh detachable filter screen are fixedly installed on the filter plates.

[0008] Preferably, a first power pump is fixedly mounted on one end of the liquid guiding tube, and a second power pump is fixedly mounted on one end of the liquid extraction tube.

[0009] Preferably, the three-stage filter, mesh filter and concentration filter are constructed into a combined biogas slurry filtration, concentration and purification device, quartz sand is fixedly stacked at the bottom of the three-stage filter, volcanic rocks are stacked at 2 / 3 of the distance from the top of the three-stage filter, and activated carbon is stacked at 1 / 3 of the distance from the top of the three-stage filter.

[0010] Preferably, a 120-mesh stainless steel screen is fixedly installed inside the screen filter, a conical nuclear pore membrane with a filtration accuracy of 20 nm and two layers of nanofiltration membrane with a filtration accuracy of 1 nm are fixedly installed inside the concentration filter, a nanofiltration membrane support ring is provided at the bottom of the nanofiltration membrane, a detachable cover is installed on the top of the screen filter and the concentration filter, and a handle is fixedly installed on one side of the detachable cover.

[0011] Preferably, a pressure gauge is fixedly installed on one side of the mesh filter and the concentration filter, a sewage outlet is installed at the bottom of the mesh filter and the concentration filter, a water pump is fixedly installed at the bottom of the clear water tank, and an energy dissipation ball and an ionizer are installed inside the arc-shaped hub.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The utility model can perform multi-stage filtration for different components in the biogas slurry through the multi-stage filtration pool. The filter screen on the filter plate has high filtration efficiency and is not easy to be clogged. The installation groove arranged on the filter plate ensures that the filter plate is easy to disassemble and install, and is convenient for cleaning, and prevents the filter screen from being clogged due to long-term use, thereby reducing the biogas slurry filtration efficiency. The multi-stage filtration pool has a simple structure and low manufacturing cost.

[0014] The utility model can intercept the nutrients and active ingredients in the biogas slurry, that is, the biogas slurry concentrate, by means of the provided combined biogas slurry filtering, concentrating and purifying device. The biogas slurry concentrate can be accurately transported to the fertilizer mixing tank through the liquid extraction pipe. The combined biogas slurry filtering, concentrating and purifying device is a progressive filtration system, comprising a three-stage filter, a screen filter and a concentration filter. After the biogas slurry is filtered by the progressive filtration system, impurities such as suspended matter and colloids can be filtered out to form biogas slurry permeate. The biogas slurry permeate can meet the agricultural irrigation standards and be used for farmland irrigation.

[0015] The utility model discloses a novel sprinkler is provided with and can effectively prevent the drip irrigation outlet from being clogged by debris. The rotating fan blades fixedly installed at the bottom of the sprinkler can turn over the weeds growing near the dripper to prevent the weeds from entering the drip irrigation outlet and causing the sprinkler to be clogged. The supporting legs fixedly installed on the outside of the sprinkler can support the pipe with the sprinkler, so as to prevent the economic loss caused by the increased weight of the pipe after watering and pressure on crops. The combination of the supporting structure and the rotating structure breaks through the traditional perforated drip irrigation belt drip irrigation method, and has a good drip irrigation effect and is not easy to be clogged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model system;

[0017] Figure 2 This is a schematic diagram of the structure of the multi-stage filter pool of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the three-stage filter of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the screen filter of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the concentration filter of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the fertilizer mixing tank of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the water emitter of the present utility model.

[0023] Figure 1: Multi-stage filter tank; 2: Liquid guide tube; 3: First valve; 4: First flow controller; 5: Third-stage filter; 6: Three-port liquid inlet nozzle; 7: Screen filter; 8: Second valve; 9: Single-port liquid inlet nozzle; 10: Concentration filter; 11: Third valve; 12: Clear water tank; 13: Liquid extraction pipe; 14: Fourth valve; 15: First pipeline; 16: Fertilizer mixing tank; 17: Fertilizer injector; 18: Blender; 19: Propeller blade; 20: Liquid level indicator; 21: Second pipeline; 22: Third pipeline; 23: Arc hub; 24: Second flow controller; 25: Semi-cylindrical plate; 26: Support bracket; 27: Dripper; 28: Rotating fan Leaf; 29. ​​Small hole; 01. Aeration device; 02. Mounting slot; 03. Filter plate; 04. First space; 05. Second space; 06. Third space; 07. Fourth space; 08. 30-mesh detachable filter screen; 09. 60-mesh detachable filter screen; 010. 100-mesh detachable filter screen; 011. First power pump; 012. Second power pump; 013. Quartz sand; 014. Volcanic rock; 015. Activated carbon; 016. 120-mesh stainless steel screen; 017. Conical nuclear pore membrane; 018. Nanofiltration membrane; 019. Nanofiltration membrane support ring; 020. Removable cover; 021. Handle; 022. Pressure gauge; 023. Sewage outlet. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figures 1 to 7 As shown, the utility model provides an anti-clogging intelligent irrigation system based on biogas slurry concentration and purification, comprising a multi-stage filter pool 1, one side of the multi-stage filter pool 1 is connected to a liquid guide pipe 2, the end of the liquid guide pipe 2 is connected to a three-stage filter 5, the liquid outlet of the three-stage filter 5 is connected to the side of the screen filter 7 through three liquid inlet nozzles 6, the liquid outlet of the screen filter 7 is connected to the top of the concentration filter 10 through a single liquid inlet nozzle 9, three liquid extraction pipes 13 are fixedly installed on the outside of the three-stage filter 5, the screen filter 7 and the concentration filter 10, the three liquid extraction pipes 13 are connected to the top of the fertilizer mixing tank 16 through a first pipe 15, a liquid level meter 20 is fixedly installed on the upper side of the inner part of the fertilizer mixing tank 16, the side center of the fertilizer mixing tank 16 is connected to the third pipe 22, a plurality of second flow controllers 24 are fixedly installed above the third pipe 22, a plurality of semi-cylindrical plates 25 are fixedly installed below the third pipe 22, and a support bracket 26 is fixedly installed at the lower part of the semi-cylindrical plate 25.

[0026] After fermentation and solid-liquid separation, the biogas slurry enters the multi-stage filtration tank 1, and the biogas slurry is sprayed from the height of the liquid guide pipe 2 into the combined biogas slurry filtering, concentrating and purifying device. A first flow controller 4 is provided at one end of the liquid guide pipe 2 to control the flow rate and the diversion rate so that the biogas slurry sprayed into the three-stage filter 5 is moderate. The biogas slurry filtered by the three-stage filter 5 enters the mesh filter 7 through the three-port liquid inlet nozzle 6. The biogas slurry filtered by the mesh filter 7 enters the concentration filter 10 through the single-port liquid inlet nozzle 9 and passes through the 20nm membrane filtration at the conical nucleus pore membrane 017 with a filtration accuracy of 20nm, so that the protein, humic acid and carbohydrates in the biogas slurry are retained. The concentrated liquid retained by the three-stage filter 5, the mesh filter 7 and the concentration filter 10 is discharged by the liquid extraction pipe. 13 is pumped to the fertilizer mixing tank 16, and then the water pump is started to pump the permeate in the clear water tank 12 into the fertilizer mixing tank 16 to be mixed with the concentrated liquid therein. When the liquid level of the mixed liquid reaches the liquid level meter 20, the system automatically triggers the power device to drive the mixer 18 to stir, so that the concentrate and the permeate are mixed more evenly. The configured water and fertilizer then reach the drip irrigation unit through the third pipe. The emitters are evenly arranged on the drip irrigation unit. The liquid is dripped into the roots of the crops in the field through the drippers 27 set on the emitters. The support frame 26 prevents the pipe from being pressed on the crops due to the increased weight after irrigation. The rotating fan blades 28 are driven to rotate by wind, so that the liquid falls to the ground over a large area. The rotation process of the rotating fan blades 28 will turn down the weeds growing near the drippers.

[0027] like Figure 1 、 Figure 2 As shown, a first valve 3 and a first flow controller 4 are provided on the liquid guide tube 2, a second valve 8 is provided on the three-port liquid inlet nozzle 6, a third valve 11 is provided on the single-port liquid inlet nozzle 9, the liquid outlet of the concentration filter 10 is facing the clear water tank 12, a fourth valve 14 is provided on the liquid extraction pipe 13, the clear water tank 12 is connected to the fertilizer mixing tank 16 through a second pipe 21, a fertilizer injector 17 and a mixer 18 are fixedly installed on the top of the fertilizer mixing tank 16, propeller blades 19 are evenly distributed on the lower part of the mixer 18, the third pipe 22 is connected to the arc hub 23, a dripper 27 is fixedly installed inside the semi-cylindrical plate 25, the dripper 27 is connected to the rotating fan blade 28, and small holes 29 are evenly arranged on the dripper 27.

[0028] The above scheme is adopted: a first flow controller 4 is provided at one end of the liquid guide tube 2 to control the flow rate and the diversion rate. The permeate is discharged from the liquid outlet of the concentration filter 10 directly into the clear water tank 12 for use in farmland irrigation. The second power pump 012 is started to provide power for the liquid extraction pipe 13. The concentrated liquid intercepted by the tertiary filter 5, the screen filter 7, and the concentration filter 10 is pumped to the fertilizer mixing tank 16 by the liquid extraction pipe 13. When the liquid level of the mixed liquid reaches the liquid level meter 20, the system automatically triggers the power device to drive the mixer 18 for stirring, so that the concentrated liquid and the permeate are mixed more evenly. The liquid is dripped into the roots of the crops in the field through the dripper 27 arranged on the sprinkler. The rotating fan blades 28 are driven to rotate by wind force, so that the liquid falls to the ground over a large area.

[0029] like Figure 1 、 Figure 5 As shown, the three-stage filter 5, the screen filter 7, and the concentration filter 10 constitute a combined biogas slurry filtering, concentrating and purification device, wherein quartz sand 013 is fixedly stacked at the bottom of the three-stage filter 5, volcanic rocks 014 are stacked at 2 / 3 of the distance from the top of the three-stage filter 5, activated carbon 015 is stacked at 1 / 3 of the distance from the top of the three-stage filter 5, a 120-mesh stainless steel screen 016 is fixedly installed inside the screen filter 7, a conical nucleopore membrane 017 with a filtration accuracy of 20 nm and two layers of nanofiltration membrane 018 with a filtration accuracy of 1 nm are fixedly installed inside the concentration filter 10, a nanofiltration membrane support ring 019 is provided at the bottom of the nanofiltration membrane 018, a detachable cover 020 is installed on the top of the screen filter 7 and the concentration filter 10, a handle 021 is fixedly installed on one side of the detachable cover 020, a pressure gauge 022 is fixedly installed on one side of the screen filter 7 and the concentration filter 10, and a sewage outlet 023 is installed at the bottom of the screen filter 7 and the concentration filter 10.

[0030] The above scheme is adopted: by setting a three-stage filter 5, most of the organic suspended matter in the biogas slurry can be removed, by setting a screen filter 7, the suspended matter and colloid in the biogas slurry can be further removed, and by setting a concentration filter 10, the volume, nutritional components and active ingredients of the biogas slurry can be concentrated, thereby achieving high-value agricultural utilization. The liquid passing through the liquid outlet of the concentration filter 10 is the permeate, which is directly discharged into the clear water tank 12. The detachable cover 020 can be easily disassembled by the provided handle 021, and the pressure value of the inner wall of the filter can be monitored by the provided pressure gauge 022.

[0031] like Figure 1 As shown, a water pump is fixedly installed at the bottom of the clear water tank 12.

[0032] With the above solution, the clean water in the clean water tank 12 can be pumped to the fertilizer mixing tank 16 by the provided water pump and mixed with the concentrated liquid in the fertilizer mixing tank 16 .

[0033] like Figure 7As shown, an energy dissipation ball and an ionizer are installed inside the arc-shaped hub.

[0034] By adopting the above solution, the energy dissipation balls can slow down the liquid flow rate in the third pipe 22, further reducing the risk of pipe blockage, and the ionizer can ionize the liquid dirt in the third pipe 22.

[0035] The working principle and use process of this utility model:

[0036] After fermentation and solid-liquid separation, the biogas slurry enters the first space 04 of the multi-stage filtration tank 1. The biogas slurry can relieve some of the impact force in the first space 04 and be fully precipitated. The first power pump 011 is started, and the biogas slurry is sucked into the second space 05 after passing through the 30-mesh detachable filter 08. The precipitated biogas residue remains in the first space. The biogas slurry is then sucked into the third space 06 through the 60-mesh detachable filter 09, and then into the fourth space 07 through the 100-mesh detachable filter 010. The biogas slurry entering the fourth space after three-stage filtration has no obvious large particles. The biogas liquid is injected into the combined biogas liquid filtration, concentration and purification device from the height of the liquid guide pipe 2. A first flow controller 4 is provided at one end of the liquid guide pipe 2 to control the flow rate and diversion rate so that the biogas liquid injected into the three-stage filter 5 is moderate. The biogas liquid first reaches the quartz sand 013 for percolation at a set rate. Sediment particles larger than 40 μm are retained on the upper part of the quartz sand 013. Then, the filtrate reaches the volcanic rock 014 for percolation at a set rate. Sediment particles larger than 30 μm are retained on the upper part of the volcanic rock 014. Then, the filtrate reaches the activated carbon 015 for percolation at a set rate. Sediment particles larger than 20 μm are retained on the upper part of the volcanic rock 014. The deposited particulate matter is retained on the upper part of the activated carbon 015 and is continuously suspended under the disturbance of the rapidly flowing biogas slurry. The biogas slurry filtered by the tertiary filter 5 enters the mesh filter 7 through the three-port liquid inlet nozzle 6. The 120-mesh stainless steel mesh provided in the mesh filter 7 can further filter out smaller impurities. The impurities are continuously suspended under the disturbance of the rapidly flowing biogas slurry. The biogas slurry filtered by the mesh filter 7 enters the concentration filter 10 through the single-port liquid inlet nozzle 9, and is filtered through a 20nm membrane at the conical nucleus pore membrane 017 with a filtration accuracy of 20nm, thereby retaining the protein, humic acid and carbohydrates in the biogas slurry. Then it reaches the two-layer nanofiltration membrane 018 with a filtration accuracy of 1nm and is filtered by the 1nm membrane to intercept the ammonia nitrogen and inorganic nutrients such as calcium, potassium, and phosphorus in the biogas slurry. The intercepted substances are constantly suspended under the disturbance of the rapidly flowing biogas slurry. The permeate is discharged from the liquid outlet of the concentration filter and directly enters the clear water tank 12 for use in farmland irrigation. The second power pump 012 is started to provide power for the liquid extraction pipe 13. The concentrated liquid intercepted by the tertiary filter 5, the screen filter 7, and the concentration filter 10 is pumped to the fertilizer mixing tank 16 by the liquid extraction pipe 13, and then the water pump is started to pump the permeate in the clear water tank 12 to the fertilizer mixing tank 16 and mix with the water in the clean water tank 16. The concentrated liquid is mixed with fertilizer. When the liquid level of the mixed liquid reaches the liquid level meter 20, the system automatically triggers the power device to drive the mixer 18 to stir, so that the concentrated liquid and the permeate are mixed more evenly. The configured water and fertilizer then reach the drip irrigation unit through the third pipe. The emitters are evenly arranged on the drip irrigation unit. The liquid is dripped into the roots of the crops in the field through the drippers 27 set on the emitters. The support legs 26 prevent the pipes from pressing on the crops due to the increased weight after irrigation. The rotating blades 28 are driven to rotate by wind, so that the liquid falls to the ground over a large area. The rotation of the rotating blades 28 will knock down the weeds growing near the drippers.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-clogging intelligent irrigation system based on biogas slurry concentration and purification, comprising a multi-stage filtration tank (1), characterized in that: One side of the multi-stage filtration tank (1) is connected to a liquid guide tube (2), the end of the liquid guide tube (2) is connected to a three-stage filter (5), the liquid outlet of the three-stage filter (5) is connected to the side of the mesh filter (7) through three liquid inlet nozzles (6), the liquid outlet of the mesh filter (7) is connected to the top of the concentration filter (10) through a single liquid inlet nozzle (9), and three liquid extraction pipes (13) are fixedly installed on the outside of the three-stage filter (5), the mesh filter (7), and the concentration filter (10). A liquid extraction pipe (13) is connected to the top of a fertilizer mixing tank (16) through a first pipe (15); a liquid level meter (20) is fixedly installed on the upper side of the inner side of the fertilizer mixing tank (16); the center of the side of the fertilizer mixing tank (16) is connected to a third pipe (22); a plurality of second flow controllers (24) are fixedly installed above the third pipe (22); a plurality of semi-cylindrical plates (25) are fixedly installed below the third pipe (22); and a supporting frame (26) is fixedly installed on the lower part of the semi-cylindrical plate (25).

2. The anti-clogging intelligent irrigation system based on biogas slurry concentration and purification according to claim 1 is characterized by: The liquid guide tube (2) is provided with a first valve (3) and a first flow controller (4), the three-port liquid inlet nozzle (6) is provided with a second valve (8), the single-port liquid inlet nozzle (9) is provided with a third valve (11), the liquid outlet of the concentration filter (10) faces the clear water tank (12), the liquid extraction tube (13) is provided with a fourth valve (14), the clear water tank (12) is connected to the fertilizer mixing tank (16) through a second pipe (21), a fertilizer injector (17) and a mixer (18) are fixedly installed on the top of the fertilizer mixing tank (16), propeller blades (19) are evenly distributed on the lower part of the mixer (18), the third pipe (22) is connected to the arc-shaped hub (23), a dripper (27) is fixedly installed inside the semi-cylindrical plate (25), the dripper (27) is connected to the rotating fan blade (28), and small holes (29) are evenly distributed on the dripper (27).

3. The anti-clogging intelligent irrigation system based on biogas slurry concentration and purification according to claim 1 is characterized by: An aeration device (01) is fixedly installed inside the multi-stage filter tank (1). Three filter plates (03) with mounting grooves (02) are staggeredly arranged inside the multi-stage filter tank (1) in directions parallel and perpendicular to the liquid guide tube (2). The filter plates (03) divide the multi-stage filter tank (1) into four spaces, including a first space (04), a second space (05), a third space (06) and a fourth space (07). The filter plates (03) can be installed and removed through the mounting grooves (02). A 30-mesh detachable filter screen (08), a 60-mesh detachable filter screen (09) and a 100-mesh detachable filter screen (010) are fixedly installed on the filter plate (03).

4. The anti-clogging intelligent irrigation system based on biogas slurry concentration and purification according to claim 1 is characterized by: A first power pump (011) is fixedly mounted on one end of the liquid guiding tube (2), and a second power pump (012) is fixedly mounted on one end of the liquid extraction tube (13).

5. The anti-clogging intelligent irrigation system based on biogas slurry concentration and purification according to claim 1 is characterized by: The three-stage filter (5), the screen filter (7), and the concentration filter (10) form a combined biogas slurry filtering, concentrating, and purification device, wherein quartz sand (013) is fixedly stacked at the bottom of the three-stage filter (5), volcanic rocks (014) are stacked at 2 / 3 of the distance from the top of the three-stage filter (5), and activated carbon (015) is stacked at 1 / 3 of the distance from the top of the three-stage filter (5).

6. The anti-clogging intelligent irrigation system based on biogas slurry concentration and purification according to claim 1 is characterized by: A 120-mesh stainless steel screen (016) is fixedly installed inside the mesh filter (7), a conical nucleus pore membrane (017) with a filtration accuracy of 20 nm and two layers of nanofiltration membranes (018) with a filtration accuracy of 1 nm are fixedly installed inside the concentration filter (10), a nanofiltration membrane support ring (019) is provided at the bottom of the nanofiltration membrane (018), and a detachable cover (020) is installed on the top of the mesh filter (7) and the concentration filter (10), and a handle (021) is fixedly installed on one side of the detachable cover (020).

7. The anti-clogging intelligent irrigation system based on biogas slurry concentration and purification according to claim 2 is characterized by: A pressure gauge (022) is fixedly installed on one side of the mesh filter (7) and the concentration filter (10), a sewage outlet (023) is installed at the bottom of the mesh filter (7) and the concentration filter (10), a water pump is fixedly installed at the bottom of the clear water tank (12), and an energy dissipation ball and an ionizer are installed inside the arc-shaped hub (23).

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