Biogas slurry saline-alkali soil utilization device for manure biogas project in dairy farm

Abstract

The invention discloses a dairy farm manure biogas project biogas slurry saline-alkali land utilization device which comprises a moving mechanism, a plurality of supporting columns are fixedly connected to the moving mechanism, a lifting mechanism is arranged on the supporting columns, and a top plate is in transmission connection to the lifting mechanism; the surface crushing assembly is movably arranged on the top plate; the surface layer assembly comprises a shoveling mechanism, a filtering mechanism and a surface layer spraying mechanism, the shoveling mechanism is arranged between the two supporting arms, the filtering mechanism is fixedly connected to the top plate through a first connecting plate, the filtering mechanism is located at the downstream of the shoveling mechanism, and the surface layer spraying mechanism is located at the discharging end of the filtering mechanism; the lower-layer assembly comprises a stirring mechanism and a lower-layer spraying mechanism, the stirring mechanism is arranged between the two supporting arms, and the lower-layer spraying mechanism is located at the downstream of the stirring mechanism; the liquid supply assembly comprises a solution box which is fixedly connected to the top plate. Layered treatment is conducted on the saline-alkali soil, biogas slurry can be sprayed to the surface layer soil and the lower layer soil of the saline-alkali soil, the soil rotary tillage depth can be reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of biogas slurry utilization devices, and in particular to a biogas slurry utilization device for saline-alkali land in the manure biogas project of dairy farms. Background Technique

[0002] The treatment of dairy farm manure has always been one of the major challenges faced by the livestock industry. Traditional manure treatment methods, such as simple field return or small-scale solid-liquid separation, often have problems such as low efficiency, environmental pollution, and resource waste. In recent years, with the development of biogas engineering technology, the use of anaerobic fermentation to treat dairy farm manure has gradually become the mainstream. After many biogas projects treat dairy farm manure, the generated biogas slurry often fails to be fully utilized. Saline-alkali land is widely distributed in China, and the harm of saline-alkali land is serious, resulting in poor physical and chemical properties of the soil, restricted crop growth or even death, reduced crop yields and crop failures, barren land, and affecting the ecological environment. Therefore, the treatment of saline-alkali land is of great significance for ensuring national food security and the ecological environment.

[0003] Biogas slurry has many benefits for saline-alkali land. It can timely supplement the available nutrient content in saline-alkali land, significantly improve soil fertility, effectively reduce soil pH, reduce salt accumulation, promote the absorption and utilization of trace elements such as calcium, magnesium, and iron, improve the soil environment, and be beneficial to crop growth.

[0004] When applying biogas slurry to saline-alkali land, if the biogas slurry is sprayed on the ground surface, the biogas slurry is easily affected by natural factors such as wind and rain, resulting in nutrient loss and reduced fertilizer efficiency; if it is sprayed and then rotary tillage is carried out, the biogas slurry may be buried too deep, which is not conducive to crop absorption and utilization.

[0005] Therefore, a biogas slurry utilization device for saline-alkali land in the manure biogas project of dairy farms is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a biogas slurry utilization device for saline-alkali land in the manure biogas project of dairy farms to solve the problems existing in the above-mentioned prior art.

[0007] To achieve the above purpose, the present invention provides the following solution: The present invention provides a biogas slurry utilization device for saline-alkali land in the manure biogas project of dairy farms, including:

[0008] A moving mechanism, on which a number of support columns are fixedly connected, a lifting mechanism is arranged on the support columns, a top plate is drivingly connected to the lifting mechanism, and two support arms are fixedly connected to the top plate;

[0009] A surface crushing assembly, which is movably arranged on the top plate, and a number of first electric telescopic rods are arranged between the surface crushing assembly and the top plate;

[0010] Surface spraying assembly, the surface spraying assembly includes a shoveling mechanism, a filtering mechanism and a surface spraying mechanism. The shoveling mechanism is arranged between the two support arms. The filtering mechanism is fixedly connected to the top plate through a first connecting plate. The shoveling mechanism is located downstream of the crushing mechanism, and the filtering mechanism is located downstream of the shoveling mechanism. The shoveling mechanism is used to shovel the surface soil, the filtering mechanism is used to filter the surface soil, and the surface spraying mechanism is located at the discharge end of the filtering mechanism;

[0011] Lower layer spraying assembly, the lower layer spraying assembly includes a turning mechanism and a lower layer spraying mechanism. The turning mechanism is arranged between the two support arms, and the lower layer spraying mechanism is located downstream of the turning mechanism;

[0012] Liquid supply assembly, the liquid supply assembly includes a solution tank. The solution tank is fixedly connected to the top plate. The surface spraying mechanism and the lower layer spraying mechanism are both communicated with the solution supply tank.

[0013] Preferably, the shoveling mechanism includes a front shovel plate and a conveying part. The front shovel plate is fixedly connected between the two support arms. An avoidance groove is formed on the front shovel plate, and the conveying part is located downstream of the front shovel plate.

[0014] Preferably, the conveying part includes two guard plates. The guard plates are fixedly connected to the support arms. Two rollers are rotatably connected between the two guard plates. A conveyor belt is sleeved on the rollers. A plurality of baffles are fixedly connected to the conveyor belt. A first motor is arranged on the guard plate. The output shaft of the first motor is fixedly connected to one of the rollers. The first motor is fixedly connected to the guard plate through a second connecting plate.

[0015] Preferably, the filtering mechanism includes two filtering boxes. The two filtering boxes are symmetrically arranged below the top plate and are fixedly connected. The filtering box is fixedly connected to the top plate through the first connecting plate. The filtering box is provided with a feeding port, a first discharge port and a second discharge port. A filter screen is fixedly connected to the first discharge port. A first guide pipe is fixedly connected to the feeding port. A second guide pipe is fixedly connected to the first discharge port. A third guide pipe is fixedly connected to the second discharge port. A pushing mechanism is arranged in the filtering box.

[0016] Preferably, the pushing mechanism includes a first rotating shaft. The first rotating shaft is rotatably connected in the filtering box. The first rotating shaft is fixedly connected with a spiral blade. A second motor is arranged outside the filtering box. The output shaft of the second motor is fixedly connected to the first rotating shaft. The second motor is fixedly connected to the filtering box through a third connecting plate.

[0017] Preferably, the surface spraying mechanism includes a first branch pipe, and a number of first nozzles are installed on the first branch pipe. The lower layer spraying mechanism includes a second branch pipe, and a number of second nozzles are fixedly connected to the second branch pipe. Both the first branch pipe and the second branch pipe are communicated with the solution tank. The first branch pipe is fixedly connected to the second material guiding pipe through a first fixing plate, and the second branch pipe is fixedly connected to the second material guiding pipe through a second fixing plate.

[0018] Preferably, the turning mechanism includes a first mounting plate and a second mounting plate. The second mounting plate is fixedly connected between the two support arms. A number of first connecting columns are fixedly connected to the first mounting plate. A number of first through holes are formed in the second mounting plate, and a first guiding pipe is fixedly connected in the first through holes. The first connecting columns pass through the first guiding pipes. A number of second electric telescopic rods are arranged between the first mounting plate and the second mounting plate. The output end of the second electric telescopic rod is fixedly connected to the first mounting plate. A moving plate is fixedly connected to the first connecting columns. The moving plate is located below the second mounting plate. A number of second connecting columns are fixedly connected to the bottom surface of the moving plate, and a plowshare is fixedly connected to the second connecting columns.

[0019] Preferably, the surface crushing assembly includes a housing. A second rotating shaft is rotatably connected in the housing. A number of crushing knives are fixedly connected to the second rotating shaft. A third motor is arranged on the housing, and the output shaft of the third motor is fixedly connected to the second rotating shaft. Two fourth connecting plates are fixedly connected to the housing. A fifth connecting plate is fixedly connected to the top plate. The fourth connecting plate is rotatably connected to the fifth connecting plate. A sixth connecting plate is fixedly connected between the two fourth connecting plates. The first electric telescopic rod is in transmission connection with the sixth connecting plate. The fixed end of the first electric telescopic rod is hinged to the top plate, and the output end of the first electric telescopic rod is hinged to the sixth connecting plate.

[0020] Preferably, a first conveying pipe is communicated with the solution tank, and a pressure pump is installed on the first conveying pipe. A high-pressure tank is fixedly connected to the top plate. The high-pressure tank is communicated with the pressure pump through a second conveying pipe. A third conveying pipe is communicated with the high-pressure tank. Both the first branch pipe and the second branch pipe are communicated with the third conveying pipe.

[0021] Preferably, the moving mechanism includes a chassis, the support pillar is fixedly connected to the chassis, a third mounting plate is fixedly connected to the support pillar, a plurality of third electric telescopic rods are fixedly connected to the third mounting plate, the output end of the third electric telescopic rod is fixedly connected to the top plate, a plurality of second through holes are formed in the top plate, a second guide tube is fixedly connected in the second through hole, the support pillar is inserted into the second guide tube, a limiting plate is fixedly connected to the top end of the support pillar, a plurality of rollers are installed on the chassis, and a plurality of collection boxes are fixedly connected to the chassis, and the collection boxes are located below the third material guide tube.

[0022] The present invention discloses the following technical effects: The device is moved by a traction device pulling the moving mechanism, the lifting mechanism facilitates the rising and falling of the top plate, and the surface crushing component is used to crush the surface soil of the saline-alkali land. Since the saline-alkali land is severely compacted and the surface is usually relatively hard, the surface crushing component can be used to crush the surface soil. The first electric telescopic rod can adjust the height of the surface crushing component, so as to adjust the crushing depth of the surface soil. The shoveling mechanism is used to shovel up the crushed surface soil. After the crushed surface soil is shoveled up, it is conveyed into the filtering mechanism. The filtering mechanism filters the crushed surface soil, and can screen out harder impurities such as stones in the surface soil. The surface spraying mechanism sprays biogas slurry on the filtered surface soil, and sprays at the discharge end of the filtering mechanism, which can also reduce the flying of dust. The turning mechanism is used to loosen the lower layer of soil. When the surface soil is shoveled up, the turning mechanism turns the lower layer of soil to loosen the lower layer of soil, which is convenient for plants to take root downward and is beneficial to plant growth. After the turning mechanism loosens the lower layer of soil, the lower layer spraying mechanism sprays biogas slurry on the lower layer of soil, so that the lower layer of soil also has biogas slurry. In this way, both the surface soil and the lower layer of the saline-alkali land have biogas slurry, and deep rotary tillage is not required. The solution tank is filled with biogas slurry. The present invention performs layered treatment on the saline-alkali land, so that both the surface and the lower layer of the saline-alkali land can be sprayed with biogas slurry, and the depth of soil rotary tillage can be reduced, and the operation efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the device for utilizing biogas slurry in saline-alkali land in the biogas project of dairy farm manure of the present invention;

[0025] Figure 2 It is a schematic cross-sectional structure of the present invention Figure 1 ;

[0026] Figure 3 Schematic diagram of the overall structure of another angle of the present invention;

[0027] Figure 4 Schematic sectional structure of the present invention Figure 2 ;

[0028] Figure 5 Schematic sectional structure of the present invention Figure 3 ;

[0029] Figure 6 Schematic sectional structure of the present invention Figure 4 ;

[0030] Figure 7 Schematic top view structure of the present invention;

[0031] Wherein, 1, support column; 2, top plate; 3, support arm; 4, first electric telescopic rod; 5, first connecting plate; 6, front shovel plate; 7, guard plate; 8, rotating roller; 9, conveyor belt; 10, baffle; 11, first motor; 12, second connecting plate; 13, filter box; 14, feed inlet; 15, first discharge port; 16, first guide pipe; 17, second guide pipe; 18, third guide pipe; 19, first rotating shaft; 20, spiral blade; 21, second motor; 22, third connecting plate; 23, branch pipe one; 24, first nozzle; 25, branch pipe two; 26, second nozzle; 27, solution tank; 28, first fixing plate; 29, first mounting plate; 30, second mounting plate; 31, first connecting column; 32, first guide pipe; 33, second electric telescopic rod; 34, moving plate; 35, second connecting column; 36, outer shell; 37, second rotating shaft; 38, crushing knife; 39, third motor; 40, second fixing plate; 41, fourth connecting plate; 42, fifth connecting plate; 43, sixth connecting plate; 44, pressure pump; 45, high-pressure tank; 46, conveying pipe three; 47, chassis; 48, third mounting plate; 49, third electric telescopic rod; 50, second guide pipe; 51, limiting plate; 52, roller; 53, collection box; 54, plow shovel. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Reference Figures 1-7 The present invention provides a saline-alkali land utilization device for biogas engineering of dairy farm manure, comprising:

[0035] A moving mechanism, on which a plurality of pillars 1 are fixedly connected, on which a lifting mechanism is arranged, on which a top plate 2 is drivingly connected, and on which two supporting arms 3 are fixedly connected;

[0036] A surface crushing assembly, which is movably arranged on the top plate 2, and a plurality of first electric telescopic rods 4 are arranged between the crushing mechanism and the top plate 2;

[0037] A surface spraying assembly, which includes a scooping mechanism, a filtering mechanism and a surface spraying mechanism. The scooping mechanism is arranged between two support arms 3, and the filtering mechanism is fixedly connected to the top plate 2 through a first connecting plate 5. The scooping mechanism is located downstream of the crushing mechanism, and the filtering mechanism is located downstream of the scooping mechanism. The scooping mechanism is used to scoop up the surface soil, and the filtering mechanism is used to filter the surface soil. The surface spraying mechanism is located at the discharge end of the filtering mechanism;

[0038] The lower layer spraying assembly includes a flipping mechanism and a lower layer spraying mechanism. The flipping mechanism is arranged between the two support arms 3, and the lower layer spraying mechanism is located downstream of the flipping mechanism.

[0039] The liquid supply assembly includes a solution tank 27 , which is fixedly connected to the top plate 2 , and the surface spraying mechanism and the lower spraying mechanism are both connected to the solution supply tank 27 .

[0040] In this device, the moving mechanism facilitates the movement of the device. The device is moved by pulling the moving mechanism through a traction device. The lifting mechanism facilitates the rising and falling of the top plate 2. The surface crushing component is used to crush the surface soil of the saline-alkali land. Since the saline-alkali land is severely compacted and the surface is usually relatively hard, the surface crushing component can be used to crush the surface soil. The first electric telescopic rod 4 can adjust the height of the surface crushing component, thereby adjusting the crushing depth of the surface soil. A number of first electric telescopic rods 4 extend or retract simultaneously. The shoveling mechanism is used to shovel up the crushed surface soil. After the crushed surface soil is shoveled up, it is conveyed into the filtering mechanism. The filtering mechanism filters the crushed surface soil and can screen out harder impurities such as stones in the surface soil. The surface spraying mechanism sprays biogas slurry on the filtered surface soil at the discharge end of the filtering mechanism, which can also reduce the flying of dust. The turning mechanism is used to loosen the soil in the lower layer. When the surface soil is shoveled up, the turning mechanism turns the soil in the lower layer to loosen the lower soil, facilitating the plants to root downward and being beneficial to plant growth. After the turning mechanism loosens the lower soil, the lower spraying mechanism sprays biogas slurry on the lower soil so that the lower soil also has biogas slurry. In this way, both the surface soil and the lower layer of the saline-alkali land have biogas slurry, and deep rotary tillage is not required. The solution tank 27 is filled with biogas slurry. In this embodiment, the biogas slurry can be desalted in advance.

[0041] In a further optimized solution, the shoveling mechanism includes a front shovel plate 6 and a conveying part. The front shovel plate 6 is fixedly connected between two support arms 3. An avoidance groove is provided on the front shovel plate 6. The conveying part is located downstream of the front shovel plate 6.

[0042] The front shovel plate 6 is used to shovel up the crushed surface soil. The front shovel plate 6 extends into the surface soil. As the device moves forward, the surface soil will continuously move onto the front shovel plate 6. When the surface soil moves to the conveying part, the conveying part conveys the soil backward. The upper surface of the front shovel plate 6 is inclined, and the soil can slide onto the front shovel plate 6.

[0043] In a further optimized solution, the conveying part includes two guard plates 7. The guard plates 7 are fixedly connected to the support arms 3. Two rollers 8 are rotatably connected between the two guard plates 7. A conveyor belt 9 is sleeved on the rollers 8. A number of baffles 10 are fixedly connected to the conveyor belt 9. A first motor 11 is provided on the guard plate 7. The output shaft of the first motor 11 is fixedly connected to one of the rollers 8. The first motor 11 is fixedly connected to the guard plate 7 through a second connecting plate 12.

[0044] The first motor 11 drives one of the rollers 8 to rotate, and the roller 8 drives the conveyor belt 9 to rotate. The baffles 10 can prevent the soil from sliding downward during the conveying process.

[0045] Further optimized solution: The filtering mechanism includes two filtering boxes 13, which are symmetrically arranged below the top plate 2. The two filtering boxes 13 are fixedly connected. The filtering box 13 is fixedly connected to the top plate 2 through the first connecting plate 5. The filtering box 13 is provided with a feeding port 14, a first discharging port 15 and a second discharging port. A filter screen is fixedly connected to the first discharging port 15. A first guiding pipe 16 is fixedly connected to the feeding port 14. A second guiding pipe 17 is fixedly connected to the first discharging port 15. A third guiding pipe 18 is fixedly connected to the second discharging port. A pushing mechanism is arranged inside the filtering box 13.

[0046] The first guiding pipe 16 is at the discharging end of the conveyor belt 9. The conveyor belt 9 transports the soil to the entrance of the first guiding pipe 16. The soil enters the filtering box 13 through the first guiding pipe 16. The first discharging port 15 is used to discharge the soil. The filter screen can filter out larger stones, etc. The pushing mechanism is used to push the soil inside the filtering box 13 to move. During the movement of the soil, it continuously discharges from the filter screen and falls through the second guiding pipe 17. Stones and other impurities that cannot be discharged will be pushed by the pushing mechanism to the second discharging port and discharged through the third guiding pipe 18.

[0047] Further optimized solution: The pushing mechanism includes a first rotating shaft 19, which is rotatably connected inside the filtering box 13. The first rotating shaft 19 is fixedly connected with a spiral blade 20. A second motor 21 is arranged outside the filtering box 13. The output shaft of the second motor 21 is fixedly connected with the first rotating shaft 19. The second motor 21 is fixedly connected to the filtering box 13 through the third connecting plate 22.

[0048] The second motor 21 drives the first rotating shaft 19 to rotate, and the first rotating shaft 19 drives the spiral blade 20 to rotate, and the spiral blade pushes the soil to move.

[0049] Further optimized solution: The surface spraying mechanism includes a first branch pipe 23, and a number of first nozzles 24 are installed on the first branch pipe 23. The lower layer spraying mechanism includes a second branch pipe 25, and a number of second nozzles 26 are fixedly connected to the second branch pipe 25. Both the first branch pipe 23 and the second branch pipe 25 are communicated with the solution tank 27. The first branch pipe 23 is fixedly connected to the second guiding pipe 17 through the first fixing plate 28. The second branch pipe 25 is fixedly connected to the second guiding pipe 17 through the second fixing plate 40.

[0050] The biogas slurry in the solution tank 27 flows into the first branch pipe 23 and the second branch pipe 25. Both the first nozzles 24 and the second nozzles 26 can spray out the biogas slurry. The first nozzles 24 face the surface soil falling through the second guiding pipe 17, and the second nozzles 26 face the ground and are used to spray the lower layer soil turned by the turning mechanism.

[0051] A further optimized solution is that the flipping mechanism includes a first mounting plate 29 and a second mounting plate 30, and the second mounting plates 30 are fixedly connected between the two support arms 3. A plurality of first connecting columns 31 are fixedly connected to the first mounting plate 29, and a plurality of first through holes are opened on the second mounting plate 30. A first guide tube 32 is fixedly connected in the first through hole, and the first connecting column 31 passes through the first guide tube 32. A plurality of second electric telescopic rods 33 are arranged between the first mounting plate 29 and the second mounting plate 30, and the output end of the second electric telescopic rod 33 is fixedly connected to the first mounting plate 29. A movable plate 34 is fixedly connected to the first connecting column 31, and the movable plate 34 is located below the second mounting plate 30. A plurality of second connecting columns 35 are fixedly connected to the bottom surface of the movable plate 34, and a plow shovel 54 is fixedly connected to the second connecting column 35.

[0052] The second electric telescopic rod 33 drives the first mounting plate 29 to move up and down, the first mounting plate 29 drives the first connecting column 31 to move up and down, the first connecting column 31 drives the moving plate 34 to move up and down, the moving plate 34 moves up and down to adjust the depth of the plow 54 entering the soil, the plow 54 is used to loosen the lower soil, and the depth of the plow 54 entering the lower soil can be adjusted according to demand. A plurality of second electric telescopic rods 33 are extended or retracted at the same time.

[0053] A further optimized solution is as follows: the surface crushing assembly includes a shell 36, in which a second rotating shaft 37 is rotatably connected, and a plurality of crushing knives 38 are fixedly connected to the second rotating shaft 37. A third motor 39 is provided on the shell 36, and the output shaft of the third motor 39 is fixedly connected to the second rotating shaft 37. Two fourth connecting plates 41 are fixedly connected to the shell 36, a fifth connecting plate 42 is fixedly connected to the top plate 2, the fourth connecting plate 41 is rotatably connected to the fifth connecting plate 42, a sixth connecting plate 43 is fixedly connected between the two fourth connecting plates 41, the first electric telescopic rod 4 and the sixth connecting plate 43 are transmission connected, the fixed end of the first electric telescopic rod 4 is hinged on the top plate 2, and the output end of the first electric telescopic rod 4 is hinged on the sixth connecting plate 43.

[0054] The third motor 39 drives the second rotating shaft 37 to rotate. When the second rotating shaft 37 rotates, the crushing knife 38 crushes the surface soil. When the first electric telescopic rod 4 is extended or retracted, it can drive the sixth connecting plate 43 to rise or fall, so as to adjust the depth of the crushing knife 38 entering the surface soil.

[0055] To further optimize the solution, the solution tank 27 is connected to a delivery pipe 1, a pressure pump 44 is installed on the delivery pipe 1, a high-pressure tank 45 is fixedly connected to the top plate 2, the high-pressure tank 45 is connected to the pressure pump 44 through a delivery pipe 2, the high-pressure tank 45 is connected to a delivery pipe 3 46, and both the branch pipe 1 23 and the branch pipe 2 25 are connected to the delivery pipe 3 46.

[0056] The pressure pump 44 transports the biogas slurry in the solution tank 27 to the high-pressure tank 45. The biogas slurry in the high-pressure tank 45 has a certain pressure, which facilitates the spraying of the biogas slurry from the first nozzle 24 and the second nozzle 26.

[0057] In a further optimized solution, the moving mechanism includes a chassis 47. The support column 1 is fixedly connected to the chassis 47. A third mounting plate 48 is fixedly connected to the support column 1. A number of third electric telescopic rods 49 are fixedly connected to the third mounting plate 48. The output end of the third electric telescopic rod 49 is fixedly connected to the top plate 2. A number of second through holes are provided on the top plate 2. A second guide tube 50 is fixedly connected in the second through hole. The support column 1 is inserted into the second guide tube 50. A limiting plate 51 is fixedly connected to the top of the support column 1. A number of rollers 52 are installed on the chassis 47. A number of collection boxes 53 are fixedly connected to the chassis 47. The collection boxes 53 are located below the third material guide pipe 18.

[0058] The third electric telescopic rods 49 of the towing rod extend or retract simultaneously, which can drive the top plate 2 to rise or fall. When the device is not working, the third electric telescopic rods 49 extend to raise the top plate 2, thus preventing the components on the top plate 2 from contacting the ground. When working, the third electric telescopic rods 49 retract to lower the top plate 2 for work. The rollers 52 facilitate the movement of the device. The collection boxes 53 are used to collect harder sundries such as stones discharged from the third material guide pipe 18. A component convenient for connecting with the traction equipment is also installed on the chassis 47, and this part adopts the existing technology.

[0059] The usage method of this device: This device is moved through the traction equipment, and the traction equipment is connected to the chassis 47. Before working, biogas slurry is loaded into the solution tank 27. The device is moved to the working area. The third electric telescopic rods 49 retract to lower the top plate 2. The first electric telescopic rod 4 extends to make the crushing knife 38 contact the surface soil. The third motor 39 drives the second rotating shaft 37 to rotate. When the second rotating shaft 37 rotates, the crushing knife 38 crushes the surface soil. The front shovel plate 6 extends into the surface soil. As the device moves, the surface soil will continuously move onto the front shovel plate 6 and then fall onto the conveyor belt 9. The baffle 10 can prevent the soil from sliding down during transportation. The conveyor belt 9 transports the soil to the inlet of the first material guide pipe 16. The soil enters the filter box 13 through the first material guide pipe 16. The first discharge port 15 is used to discharge the soil. The filter screen can filter larger stones, etc. The second motor 21 drives the first rotating shaft 19 to rotate. The first rotating shaft 19 drives the spiral blade 20 to rotate. The spiral blade pushes the soil to move. During the movement of the soil, it continuously discharges from the filter screen and falls through the second material guide pipe 17. Larger stones and other impurities will be pushed by the pushing mechanism to the second discharge port and discharged through the third material guide pipe 18. The collection boxes 53 collect harder sundries such as stones discharged from the third material guide pipe 18.

[0060] The first nozzle 24 faces the surface soil falling onto the second material guide pipe 17. The first nozzle 24 sprays biogas slurry onto the falling surface soil, which can also reduce the flying of dust. The second electric telescopic rod 33 drives the first mounting plate 29 to move downward. The first mounting plate 29 drives the first connecting column 31 to move downward. The first connecting column 31 drives the moving plate 34 to move downward, enabling the plowshare 54 to enter the subsoil. The second nozzle 26 is located downstream of the plowshare 54 and sprays biogas slurry onto the loosened subsoil. The discharge end of the second material guide pipe 17 is located downstream of the second nozzle 26, so that the surface soil continues to cover the subsoil.

[0061] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0062] The embodiments described above are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for utilizing saline-alkali land of biogas project of dairy farm manure, characterized in that: include: A moving mechanism, wherein a plurality of pillars (1) are fixedly connected to the moving mechanism, a lifting mechanism is arranged on the pillars (1), a top plate (2) is drivingly connected to the lifting mechanism, and two support arms (3) are fixedly connected to the top plate (2); a surface crushing assembly, the surface crushing assembly being movably arranged on the top plate (2), and a plurality of first electric telescopic rods (4) being arranged between the surface crushing assembly and the top plate (2); A surface spraying assembly, the surface spraying assembly comprising a scooping mechanism, a filtering mechanism and a surface spraying mechanism, the scooping mechanism being arranged between the two support arms (3), the filtering mechanism being fixedly connected to the top plate (2) via a first connecting plate (5), the scooping mechanism being located downstream of the surface crushing assembly, the filtering mechanism being located downstream of the scooping mechanism, the scooping mechanism being used to scoop up surface soil, the filtering mechanism being used to filter the surface soil, and the surface spraying mechanism being located at a discharge end of the filtering mechanism; A lower layer spraying assembly, the lower layer spraying assembly comprising a flipping mechanism and a lower layer spraying mechanism, the flipping mechanism being arranged between the two support arms (3), and the lower layer spraying mechanism being located downstream of the flipping mechanism; A liquid supply component, the liquid supply component comprising a solution box (27), the solution box (27) is fixedly connected to the top plate (2), and the surface spraying mechanism and the lower layer spraying mechanism are both connected to the solution box (27).

2. The device for utilizing saline-alkali land of biogas engineering of dairy manure according to claim 1, characterized in that: The scooping mechanism comprises a front shovel plate (6) and a conveying portion, wherein the front shovel plate (6) is fixedly connected between the two support arms (3), an avoidance groove is provided on the front shovel plate (6), and the conveying portion is located downstream of the front shovel plate (6).

3. The device for utilizing saline-alkali land of biogas engineering of dairy manure according to claim 2, characterized in that: The conveying part comprises two guard plates (7), the guard plates (7) are fixedly connected to the support arm (3), two rollers (8) are rotatably connected between the two guard plates (7), a conveyor belt (9) is sleeved on the roller (8), a plurality of baffles (10) are fixedly connected to the conveyor belt (9), a first motor (11) is arranged on the guard plate (7), an output shaft of the first motor (11) is fixedly connected to one of the rollers (8), and the first motor (11) is fixedly connected to the guard plate (7) via a second connecting plate (12).

4. The device for utilizing saline-alkali land of biogas engineering of dairy manure according to claim 1, characterized in that: The filtering mechanism comprises two filtering boxes (13), the two filtering boxes (13) are symmetrically arranged below the top plate (2), the two filtering boxes (13) are fixedly connected, the filtering boxes (13) are fixedly connected to the top plate (2) via the first connecting plate (5), the filtering box (13) is provided with an inlet (14), a first outlet (15) and a second outlet, the first outlet (15) is fixedly connected with a filter screen, the inlet (14) is fixedly connected with a first material guide pipe (16), the first outlet (15) is fixedly connected with a second material guide pipe (17), the second outlet (15) is fixedly connected with a third material guide pipe (18), and a pushing mechanism is arranged inside the filtering box (13).

5. The device for utilizing saline-alkali land of biogas engineering of dairy manure according to claim 4, characterized in that: The driving mechanism comprises a first rotating shaft (19), the first rotating shaft (19) is rotatably connected in the filter box (13), the first rotating shaft (19) is fixedly connected with a spiral blade (20), a second motor (21) is arranged outside the filter box (13), an output shaft of the second motor (21) is fixedly connected to the first rotating shaft (19), and the second motor (21) is fixedly connected to the filter box (13) via a third connecting plate (22).

6. The device for utilizing saline-alkali land of biogas engineering of dairy manure according to claim 4, characterized in that: The surface spraying mechanism comprises a branch pipe 1 (23), on which a plurality of first nozzles (24) are installed; the lower layer spraying mechanism comprises a branch pipe 2 (25), on which a plurality of second nozzles (26) are fixedly connected; the branch pipe 1 (23) and the branch pipe 2 (25) are both connected to the solution tank (27); the branch pipe 1 (23) is fixedly connected to the second material guide pipe (17) through a first fixing plate (28); and the branch pipe 2 (25) is fixedly connected to the second material guide pipe (17) through a second fixing plate (40).

7. The device for utilizing saline-alkali land of biogas engineering of dairy manure according to claim 1, characterized in that: The flipping mechanism comprises a first mounting plate (29) and a second mounting plate (30), the second mounting plate (30) being fixedly connected between the two support arms (3), a plurality of first connecting columns (31) being fixedly connected to the first mounting plate (29), a plurality of first through holes being provided on the second mounting plate (30), a first guide tube (32) being fixedly connected in the first through holes, the first connecting column (31) passing through the first guide tube (32), a plurality of second electric telescopic rods (33) being arranged between the first mounting plate (29) and the second mounting plate (30), an output end of the second electric telescopic rod (33) being fixedly connected to the first mounting plate (29), a movable plate (34) being fixedly connected to the first connecting column (31), the movable plate (34) being located below the second mounting plate (30), a plurality of second connecting columns (35) being fixedly connected to the bottom surface of the movable plate (34), a plow shovel (54) being fixedly connected to the second connecting column (35).

8. The device for utilizing saline-alkali land of biogas engineering of dairy manure according to claim 1, characterized in that: The surface layer crushing assembly comprises a shell (36), a second rotating shaft (37) is rotatably connected inside the shell (36), a plurality of crushing knives (38) are fixedly connected to the second rotating shaft (37), a third motor (39) is arranged on the shell (36), an output shaft of the third motor (39) is fixedly connected to the second rotating shaft (37), two fourth connecting plates (41) are fixedly connected to the shell (36), a fifth connecting plate (42) is fixedly connected to the top plate (2), the fourth connecting plate (41) is rotatably connected to the fifth connecting plate (42), a sixth connecting plate (43) is fixedly connected between the two fourth connecting plates (41), the first electric telescopic rod (4) is transmission-connected to the sixth connecting plate (43), a fixed end of the first electric telescopic rod (4) is hinged to the top plate (2), and an output end of the first electric telescopic rod (4) is hinged to the sixth connecting plate (43).

9. The device for utilizing saline-alkali land of biogas engineering of dairy manure according to claim 6, characterized in that: The solution tank (27) is connected to a delivery pipe 1, a pressure pump (44) is installed on the delivery pipe 1, a high-pressure tank (45) is fixedly connected to the top plate (2), the high-pressure tank (45) and the pressure pump (44) are connected via a delivery pipe 2, the high-pressure tank (45) is connected to a delivery pipe 3 (46), and the branch pipe 1 (23) and the branch pipe 2 (25) are both connected to the delivery pipe 3 (46).

10. The device for utilizing saline-alkali land of biogas engineering of dairy manure according to claim 4, characterized in that: The moving mechanism comprises a base frame (47), the support (1) is fixedly connected to the base frame (47), a third mounting plate (48) is fixedly connected to the support (1), a plurality of third electric telescopic rods (49) are fixedly connected to the third mounting plate (48), the output end of the third electric telescopic rod (49) is fixedly connected to the top plate (2), a plurality of second through holes are opened on the top plate (2), a second guide tube (50) is fixedly connected in the second through holes, the support (1) is inserted into the second guide tube (50), a limit plate (51) is fixedly connected to the top of the support (1), a plurality of rollers (52) are installed on the base frame (47), a plurality of collection boxes (53) are fixedly connected to the base frame (47), and the collection boxes (53) are located below the third material guide tube (18).

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