Deep filtration and water and fertilizer integrated equipment for thick biogas slurry

Abstract

The utility model provides a thick sludge deep filtration and water and fertilizer integration equipment belongs to fertilization technical field. This thick sludge deep filtration and water and fertilizer integration equipment, including sludge pump and screw pump, centrifugal filter and screw pump have disc filter through pipeline and three -way joint intercommunication, the one end of first delivery pipeline far from disc filter is connected with chemical fertilizer mechanism, the other end of pipeline mixer is connected with control fertilization mechanism, and detection unit includes PH detection sensor and EC detection sensor, and first exhaust valve is connected in the end of the pipeline that is installed with PH detection sensor and EC detection sensor, is used to with sprinkling irrigation equipment and drip irrigation equipment carries out the connection, the utility model discloses a chemical fertilizer mechanism and control fertilization mechanism can use chemical fertilizer mechanism to mix water and sludge according to the proportion after filtration to form the mixed solution suitable for irrigation, and through the booster, the sludge after mixing and filtration is conveyed from control fertilization mechanism, thereby facilitating the sprinkling irrigation and drip irrigation of sludge.

Description

Technical Field

[0001] This utility model relates to the field of fertilization technology, specifically to a deep filtration and fertigation system for concentrated biogas slurry. Background Technology

[0002] Integrated water and fertilizer management is a highly efficient agricultural technology that combines irrigation and fertilization. By precisely controlling the water-fertilizer ratio, it improves resource utilization and is applicable to various scenarios such as open fields, greenhouses, and orchards. Among them, biogas slurry is a byproduct of anaerobic fermentation, which is rich in organic matter, nitrogen, phosphorus, potassium and trace elements. Biogas slurry can be utilized as a resource to reduce sewage treatment costs.

[0003] While irrigating with integrated water and fertilizer equipment can meet the needs of agricultural product growth in the short term, long-term and excessive use of chemical fertilizers alters the soil composition, leading to soil degradation and compaction, which will eventually render the soil unusable for planting. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a device for deep filtration of thick biogas slurry and integrated water and fertilizer management that overcomes or at least partially solves the above technical problems.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a deep filtration and fertigation device for thick biogas slurry, including a sludge pump and a screw pump. The outlet end of the sludge pump is connected to a centrifugal filter. The centrifugal filter and the screw pump are connected to a disc filter via a pipe and a T-joint. The disc filter is connected to a first conveying pipe and a second conveying pipe via the T-joint. The end of the second conveying pipe away from the disc filter is connected to a pipe mixer. The end of the first conveying pipe away from the disc filter is connected to a fertilizer application mechanism. The other end of the pipe mixer is connected to a fertilizer application control mechanism.

[0007] The fertilizer control mechanism includes:

[0008] The detection unit includes a pH sensor and an EC sensor, which are installed at the end of the pipe mixer away from the disc filter.

[0009] The first vent valve is connected to the end of the pipe where the pH sensor and EC sensor are installed, and is used to connect to the sprinkler irrigation equipment and the drip irrigation equipment.

[0010] In a preferred embodiment, the fertilizer unit includes a fertilizer tank connected to one end of a first delivery pipeline away from the disc filter, and the other end of the fertilizer tank connected to a Y-type filter. The end of the Y-type filter is connected to a flow regulating valve, and the other end of the flow regulating valve is connected to a Venturi device, which is connected to a pipeline pump via an adapter.

[0011] In a preferred embodiment, a first flow meter and a first check valve are sequentially installed at the inner ends of the centrifugal filter and the disc filter, and a first float flow meter is connected to the outlet end of the screw pump. The other end of the first float flow meter is sequentially connected to a first ball valve, a second flow meter, and a second check valve.

[0012] In a preferred embodiment, a second ball valve is connected to the surface of the first delivery pipe, a second float flow meter is installed inside the Y-type filter and the flow regulating valve, and a first solenoid valve and a third flow meter are sequentially connected to the inside of the flow regulating valve and the venturi device.

[0013] In a preferred embodiment, a third ball valve is installed inside the pipeline pump and pipeline mixer, the second delivery pipeline is connected to a connecting pipe via a tee joint, and the connecting pipe is connected to the Venturi device, with a fourth ball valve and a second vent valve connected to one side of the surface of the connecting pipe.

[0014] In a preferred embodiment, a fourth flow meter and a fifth ball valve are sequentially installed inside the pipeline mixer and the detection unit.

[0015] The beneficial effects of the concentrated biogas slurry deep filtration and integrated water and fertilizer equipment provided by this utility model include:

[0016] 1. By setting up a fertilizer unit and a fertilizer control unit, the fertilizer unit can mix water and biogas slurry in a certain proportion and then filter it to form a mixture suitable for irrigation. The mixed and filtered biogas slurry is then delivered from the fertilizer control unit by pressurization, which facilitates the application of biogas slurry for sprinkler and drip irrigation.

[0017] 2. By setting a first flow meter, a first check valve, a first float flow meter, a first ball valve, a second flow meter, and a second check valve, the first flow meter and the second flow meter can work together to detect the delivery volume of water and biogas slurry, thereby allowing timely adjustment of the delivery volume of water and biogas slurry. In addition, the first check valve and the second check valve can prevent backflow during the delivery of water and biogas slurry. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the process distribution provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the main structure of the centrifugal filter provided in this embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the main structure of the fertilizer tank provided for an embodiment of this utility model;

[0022] In the diagram: 1. Sludge pump; 2. Screw pump; 3. Centrifugal filter; 4. Disc filter; 5. First conveying pipeline; 6. Second conveying pipeline; 7. Pipeline mixer; 8. Detection unit; 10. First exhaust valve; 11. Fertilizer tank; 12. Y-type filter; 13. Flow regulating valve; 14. Venturi device; 15. Pipeline pump; 16. First flow meter; 17. First check valve; 18. First float flow meter; 19. First ball valve; 20. Second flow meter; 21. Second check valve; 22. Second ball valve; 23. Second float flow meter; 24. First solenoid valve; 25. Third flow meter; 26. Third ball valve; 27. Connecting pipe; 28. Fourth ball valve; 29. ​​Second exhaust valve; 30. Fourth flow meter; 31. Fifth ball valve. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Reference Figures 1-3This utility model provides a technical solution: a deep filtration and fertigation device for thick biogas slurry, including a sludge pump 1 and a screw pump 2. The outlet end of the sludge pump 1 is connected to a centrifugal filter 3. The centrifugal filter 3 and the screw pump 2 are connected to a disc filter 4 via a pipe and a T-joint. The disc filter 4 is connected to a first conveying pipe 5 and a second conveying pipe 6 via a T-joint. The end of the second conveying pipe 6 away from the disc filter 4 is connected to a pipe mixer 7. The end of the first conveying pipe 5 away from the disc filter 4 is connected to a fertilizer mechanism. The other end of the pipe mixer 7 is connected to a fertilizer control mechanism. The fertilizer mechanism can be used to mix water and biogas slurry in a certain proportion, filter it to form a mixture suitable for irrigation, and then pressurize and deliver the mixed and filtered biogas slurry from the fertilizer control mechanism. This facilitates the application of biogas slurry for sprinkler and drip irrigation, which can improve soil composition and meet planting needs. Appropriate fertilizers can be added according to the growth needs of agricultural crops at different stages, thus reducing fertilizer usage, lowering planting costs, enriching soil elements, and changing the state of soil degradation and compaction.

[0025] Reference Figure 1 In a preferred embodiment, a fertilizer control mechanism is provided, which includes a pH sensor, an EC sensor, and a first exhaust valve 10. The pH sensor and the EC sensor are installed at the end of the pipe mixer 7 away from the disc filter 4. The first exhaust valve 10 is connected to the end of the pipe where the pH sensor and the EC sensor are installed, and is used to connect to sprinkler irrigation equipment and drip irrigation equipment. This allows the pH sensor and the EC sensor to detect the mixed biogas slurry and detect the nitrogen, phosphorus, and potassium content of the mixed liquid. The fertilizer channel can be controlled according to the content of each element required by crops at different growth stages, so that fertilizer can be applied precisely.

[0026] Reference Figures 1-3 In a preferred embodiment, the fertilizer unit includes a fertilizer tank 11, which is connected to one end of the first conveying pipe 5 away from the disc filter 4. The other end of the fertilizer tank 11 is connected to a Y-type filter 12, and the end of the Y-type filter 12 is connected to a flow regulating valve 13. The other end of the flow regulating valve 13 is connected to a Venturi device 14. The Venturi device 14 is connected to a pipeline pump 15 through an adapter, which allows the mixture of water and biogas slurry to be conveyed to the Y-type filter 12 for filtration. The mixture can be conveyed to the Venturi device 14 to add the elements required for planting and mix with the mixture. The Venturi device 14 will use the Venturi effect when in use. The Venturi effect is manifested in the phenomenon that the fluid velocity increases when the confined flow passes through a narrowed flow cross section. The flow velocity is inversely proportional to the flow cross section, and the increase in flow velocity is accompanied by a decrease in fluid pressure, which is the common Venturi phenomenon. In layman's terms, this effect means that a low pressure is generated near a high-speed flowing fluid, thereby producing an adsorption effect.

[0027] Reference Figure 1 In a preferred embodiment, a first flow meter 16 and a first check valve 17 are sequentially installed on the inner ends of the centrifugal filter 3 and the disc filter 4. The outlet end of the screw pump 2 is connected to a first float flow meter 18. The other end of the first float flow meter 18 is sequentially connected to a first ball valve 19, a second flow meter 20, and a second check valve 21. This allows the first flow meter 16 and the second flow meter 20 to work together to detect the flow rate of water and biogas slurry, thereby adjusting the flow rate of water and biogas slurry in a timely manner. Furthermore, the first check valve 17 and the second check valve 21 can prevent backflow during the flow of water and biogas slurry.

[0028] Reference Figure 1 In a preferred embodiment, a second ball valve 22 is connected to the surface of the first conveying pipe 5, and a second float flow meter 23 is installed inside the Y-type filter 12 and the flow regulating valve 13. A first solenoid valve 24 and a third flow meter 25 are sequentially connected to the inside of the flow regulating valve 13 and the Venturi device 14. The flow rate of the biogas slurry can be detected by the second float flow meter 23 and the third flow meter 25, and the flow rate of the biogas slurry can be controlled by the valve bodies such as the flow regulating valve 13 and the first solenoid valve 24, thereby facilitating the control of the amount of fertilizer applied.

[0029] Reference Figure 1 In a preferred embodiment, a third ball valve 26 is installed inside the pipeline pump 15 and the pipeline mixer 7. The second delivery pipeline 6 is connected to a connecting pipe 27 via a tee joint, and the connecting pipe 27 is connected to the Venturi device 14. A fourth ball valve 28 and a second exhaust valve 29 are connected to one side of the surface of the connecting pipe 27. The biogas slurry can be diverted through the connecting pipe 27, and the amount of biogas slurry added can be adjusted by controlling the flow rate of the diverted biogas slurry.

[0030] Reference Figure 1 In a preferred embodiment, a fourth flow meter 30 and a fifth ball valve 31 are sequentially installed on the inner side of the pipeline mixer 7 and the detection unit 8. The flow rate of the biogas slurry can be measured by the fourth flow meter 30, and the flow rate of the discharged biogas slurry can be controlled by the fifth ball valve 31, thereby adjusting the fertilizer flow rate during fertilization.

[0031] Specifically, the working process or principle of this concentrated biogas slurry deep filtration and integrated water and fertilizer equipment is as follows: During use, the biogas slurry is drawn by the screw pump 2, and the water is drawn by the sludge pump 1. The water and biogas slurry are mixed and filtered through the disc filter 4. The mixture is then diverted through the first conveying pipe 5 and the second conveying pipe 6, allowing it to enter the fertilizer tank 11 for further mixing. The mixture is then filtered again by the Y-type filter 12, enabling it to be transported to the Venturi device 14. Adding the necessary elements for planting can further mix the mixture with the biogas slurry transported by the first conveying pipe 5 in the pipe mixer 7. While the mixture is being continuously transported, the pH sensor and EC sensor can detect the liquid nitrogen, phosphorus, and potassium content in the mixture. This allows the fertilizer channel to be controlled according to the required element content at different stages of crop growth, enabling precise fertilizer application.

Claims

1. A deep filtration and fertigation system for thick biogas slurry, comprising a sludge pump (1) and a screw pump (2), characterized in that: The outlet end of the sludge pump (1) is connected to a centrifugal filter (3). The centrifugal filter (3) and the screw pump (2) are connected to a disc filter (4) through a pipe and a tee joint. The disc filter (4) is connected to a first conveying pipe (5) and a second conveying pipe (6) through a tee joint. The end of the second conveying pipe (6) away from the disc filter (4) is connected to a pipe mixer (7). The end of the first conveying pipe (5) away from the disc filter (4) is connected to a fertilizer mechanism. The other end of the pipe mixer (7) is connected to a fertilizer control mechanism. The fertilizer control mechanism includes: The detection unit (8) includes a pH sensor and an EC sensor, which are installed at the end of the pipe mixer (7) away from the disc filter (4). The first exhaust valve (10) is connected to the end of the pipe where the pH detection sensor and EC detection sensor are installed, and is used to connect to the sprinkler irrigation equipment and the drip irrigation equipment.

2. The equipment for deep filtration of concentrated biogas slurry and integrated water and fertilizer management according to claim 1, characterized in that, The fertilizer unit includes a fertilizer tank (11), which is connected to one end of the first delivery pipe (5) away from the disc filter (4). The other end of the fertilizer tank (11) is connected to a Y-type filter (12). The end of the Y-type filter (12) is connected to a flow regulating valve (13), and the other end of the flow regulating valve (13) is connected to a Venturi device (14). The Venturi device (14) is connected to a pipeline pump (15) through an adapter.

3. The equipment for deep filtration of concentrated biogas slurry and integrated water and fertilizer application according to claim 1, characterized in that, The centrifugal filter (3) and the disc filter (4) are sequentially equipped with a first flow meter (16) and a first check valve (17). The outlet end of the screw pump (2) is connected to a first float flow meter (18). The other end of the first float flow meter (18) is sequentially connected to a first ball valve (19), a second flow meter (20), and a second check valve (21).

4. The equipment for deep filtration of concentrated biogas slurry and integrated water and fertilizer application according to claim 2, characterized in that, The surface of the first conveying pipe (5) is connected to a second ball valve (22), and a second float flow meter (23) is installed inside the Y-type filter (12) and the flow regulating valve (13). The flow regulating valve (13) and the venturi device (14) are connected in sequence to a first solenoid valve (24) and a third flow meter (25).

5. The equipment for deep filtration of concentrated biogas slurry and integrated water and fertilizer application according to claim 2, characterized in that, The pipeline pump (15) and the pipeline mixer (7) are equipped with a third ball valve (26). The second delivery pipeline (6) is connected to a connecting pipe (27) through a tee joint. The connecting pipe (27) is connected to the Venturi device (14). A fourth ball valve (28) and a second exhaust valve (29) are connected to one side of the surface of the connecting pipe (27).

6. The equipment for deep filtration of concentrated biogas slurry and integrated water and fertilizer application according to claim 1, characterized in that, The pipeline mixer (7) and the detection unit (8) are respectively equipped with a fourth flow meter (30) and a fifth ball valve (31).

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