Liquid fertilizer mixing device for new energy irrigation

Abstract

The invention discloses a liquid fertilizer mixing device for new energy irrigation, and relates to the technical field of agricultural irrigation, the liquid fertilizer mixing device comprises a mixing and stirring barrel, a main stirring blade and an auxiliary stirring blade are arranged in the mixing and stirring barrel, liquid is convected up and down under the action of the two groups of blades, and a reflux water pump is arranged to pump the liquid at the lower layer to the upper layer. Uneven mixing caused by sedimentation of the fertilizer at the bottom is avoided, the crushed fertilizer is discharged into a weighing bin to be weighed, when the required weight is reached, a rotating bin door is opened, the fertilizer falls into a pre-dissolving tank to be dissolved and mixed, fertilizer particles are crushed, so that the fertilizer dissolving time is shortened, and the mixing efficiency is improved; the pH detection assembly and the EC detection assembly are arranged to measure the pH value and the conductivity of liquid in the mixing and stirring barrel and detect the proportioning concentration of the fertilizer, the flow of the liquid fertilizer injected into the mixing and stirring barrel is measured and controlled in cooperation with the flowmeter, the proportioning concentration can be adjusted, and the proportioning accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural irrigation, and specifically to a liquid fertilizer mixing device for new energy irrigation. Background Art

[0002] With the continuous emergence of problems such as the shortage of agricultural labor, insufficient water resources, and excessive fertilizer application in China, the domestic water and fertilizer integration technology has developed rapidly due to its advantages of saving time and labor, improving the utilization efficiency of water and fertilizer, and reducing environmental pollution. It has become the best choice for the development of modern agriculture. The liquid fertilizer mixing device for irrigation is the core equipment of the water and fertilizer integration technology. Its function is to mix soluble solid or liquid fertilizers with irrigation water in proportion and achieve precise fertilization through the pipeline system, so as to synchronize fertilization and irrigation, and meet the water and nutrient requirements of crops timely and in appropriate amounts, thereby achieving the coordination and efficient utilization of water and fertilizer. In order to enhance the fertilizer effect, improve the dissolution uniformity and dissolution rate of water-soluble fertilizers in irrigation water, sufficient stirring has become an essential key link in irrigation production.

[0003] Early fertilizer mixing devices relied on manual adjustment of valves to control the ratio, with a relatively high error rate. Due to different particle sizes of some solid fertilizers, their dissolution times in water were different, making it difficult to control the stirring and mixing time and the concentration of the fertilizer after mixing. Moreover, when mixing, a large-capacity mixing barrel was used to mix and stir the fertilizers. The solid fertilizers and liquid fertilizers were added into the mixing barrel at the same time, and the solid fertilizers were prone to settle to the bottom of the barrel, resulting in uneven fertilizer mixing. Therefore, a liquid fertilizer mixing device for new energy irrigation is proposed to solve the above problems. Summary of the Invention

[0004] To solve the above technical problems, a liquid fertilizer mixing device for new energy irrigation is provided. This technical solution solves the problems of relying on manual adjustment of valves to control the ratio, with a relatively high error rate, the solid fertilizers being prone to settle to the bottom of the barrel during fertilizer mixing, being difficult to dissolve, and resulting in uneven fertilizer mixing.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A liquid fertilizer mixing device for new energy irrigation, comprising: A mixing and stirring barrel, on the top of which a stirring motor is installed. The output end of the stirring motor penetrates through the top of the mixing and stirring barrel and is connected to a stirring shaft; A fertilizer storage tank, which is arranged on one side of the mixing and stirring barrel and is used for storing liquid fertilizers; A pre-dissolution tank, which is arranged on one side of the pre-dissolution tank and is used for dissolving solid fertilizers; Fertilizer crushing assembly, the fertilizer crushing assembly is arranged above the pre-dissolution tank, the pre-dissolution tank is used for crushing solid fertilizer, and a support frame is arranged at the lower end of the fertilizer crushing assembly; The fertilizer crushing assembly includes a crushing chamber, a feed hopper, a discharge pipe and a weighing bin. The feed hopper is installed at the upper end of the crushing chamber. A first crushing roller group and a second crushing roller group are rotatably connected inside the crushing chamber. A transmission gearbox is arranged on one side of the crushing chamber. A driving motor for driving the first crushing roller group and the second crushing roller group to rotate is installed on one side of the transmission gearbox. The lower end of the crushing chamber is connected with a discharge pipe, and a weighing bin is arranged below the discharge port of the discharge pipe; Control terminal, the control terminal is arranged on one side of the fertilizer storage tank, and the control terminal is used to control the weight of the fertilizer added to the pre-dissolution tank and the amount of various fertilizers injected from the fertilizer storage tank and the pre-dissolution tank into the mixing and stirring tank.

[0006] Preferably, a plurality of connecting rods are fixedly connected to both the upper and lower ends of the stirring shaft. A plurality of main stirring blades are arranged around the outer side of the stirring shaft. Both the upper and lower ends of the main stirring blades are fixedly connected to the connecting rods. A plurality of auxiliary stirring blades are fixedly connected to the inner wall of the mixing and stirring tank. Both the main stirring blades and the auxiliary stirring blades are arranged in a spiral shape. The top of the mixing and stirring tank is connected with a plurality of fertilizer filling pipes. The plurality of fertilizer filling pipes are respectively communicated with the second fertilizer conveying pipe and the first fertilizer conveying pipe. A first water injection pipe is arranged on one side of the fertilizer filling pipe. One end of the first water injection pipe is communicated with the inside of the mixing and stirring tank. A plurality of stirring rods are fixedly connected to the surface of the stirring shaft, and a plurality of through holes are formed on the surfaces of the plurality of stirring rods.

[0007] Preferably, a plurality of pH detection components and EC detection components are installed on the side wall of the mixing and stirring tank. The plurality of pH detection components and EC detection components are arranged longitudinally and are all electrically connected to the control terminal. A return water pump is arranged on one side of the mixing and stirring tank. The water inlet end of the return water pump is communicated with the bottom of the mixing and stirring tank. The water outlet end of the return water pump is communicated with the top of the mixing and stirring tank through a return pipe. The bottom of the mixing and stirring tank is communicated with a first sewage discharge pipe and a liquid fertilizer discharge pipe for discharging liquid fertilizer.

[0008] Preferably, a first water pump is installed on the outer side of the fertilizer storage tank. The upper end of the first water pump is connected to a first fertilizer delivery pipe. A second sewage pipe is arranged on one side of the first water pump, and the second sewage pipe is connected to the bottom of the fertilizer storage tank. A second water pump is installed on the outer side of the pre-dissolution tank. The upper end of the second water pump is connected to a main delivery pipe. The upper end of the main delivery pipe is connected to a second water injection pipe. A plurality of elbow nozzles are connected to the outer side of one end of the second water injection pipe extending into the pre-dissolution tank. A second fertilizer delivery pipe is connected to one side of the second water pump. The second fertilizer delivery pipe and the first water pump are respectively connected to a fertilizer filling pipe. Flow meters are installed at one ends of the second fertilizer delivery pipe and the first water pump close to the fertilizer filling pipe. Electric control valves are installed between the flow meters and the fertilizer filling pipe.

[0009] Preferably, a first electromagnetic valve is installed in the middle of the main delivery pipe. The first electromagnetic valve is arranged above the second fertilizer delivery pipe. A third electromagnetic valve is installed at one end of the second fertilizer delivery pipe close to the main delivery pipe. A second electromagnetic valve is installed in the middle of the second water injection pipe. The second electromagnetic valve is arranged on one side of the main delivery pipe.

[0010] Preferably, a discharge screw rod is arranged inside the discharge pipe. Both ends of the discharge screw rod are rotatably connected to the inner wall of the discharge pipe. A discharge motor is installed on one side of the discharge pipe. The output end of the discharge motor is fixedly connected to the middle rotating shaft of the discharge screw rod. The lower end of the discharge pipe is fixedly connected to the bottom plate through a support column. A plurality of sliding wheels are rotatably connected to the lower end of the bottom plate through a mounting seat. A positioning block is arranged between the sliding wheels, and the positioning block is fixedly connected to the bottom of the bottom plate.

[0011] Preferably, a surrounding baffle is fixedly connected to the upper end of the weighing bin. The surrounding baffle is arranged below the discharge port of the discharge pipe. A plurality of fixing blocks are fixedly connected to both sides of the weighing bin. Weight detection modules are installed at the lower ends of the plurality of fixing blocks. The lower ends of the weight detection modules are connected to the bottom plate. The weight of the fertilizer in the weighing bin is measured by the plurality of weight detection modules. A longitudinal slide rail is fixedly connected to one side of the weighing bin. A sliding block is slidably connected to the outer side of the longitudinal slide rail. Two pushing cylinders are installed at one end of the sliding block through a connecting plate. The two pushing cylinders are symmetrically arranged. The output rod of the pushing cylinder is fixedly connected to a connecting block. One end of the connecting block is rotatably connected to a rotating rod. A rotating shaft is fixedly connected to one side of the rotating rod. The surface of the rotating shaft is rotatably connected to a rotating frame. The rotating frame is fixedly connected to the side wall of the weighing bin. Two rotating hatch doors are arranged below the weighing bin. One ends of the rotating hatch doors are respectively fixedly connected to the rotating shaft.

[0012] Preferably, a guide rail is installed above the support frame, the guide rail is correspondingly arranged with the sliding wheel, the fertilizer crushing assembly moves along the guide rail through the sliding wheel, and a locking assembly is installed at the upper end of the support frame, and the locking assembly is used for positioning and locking the fertilizer crushing assembly.

[0013] Preferably, the locking assembly includes a rotating seat, a limiting block, a locking block and a first connecting rod. The lower end of the rotating seat is fixedly connected to the support frame. The limiting block and the locking block are respectively rotatably connected to both sides of the rotating seat. The limiting block and the locking block are both fan-shaped and arranged at an alternating angle. The limiting block and the locking block are respectively arranged on both sides of the positioning block and are used for positioning and locking the positioning block.

[0014] Preferably, the locking assembly further includes a first connecting rod, a chute block, a second connecting rod, a rotating bracket, a rotating handle, a tension spring and an elastic reed. The chute block is fixedly connected to one side of the inner cross beam of the support frame. The inner slider of the chute block is rotatably connected to one end of the first connecting rod. The other end of the first connecting rod is rotatably connected to the side surface of the limiting block. One end of the second connecting rod is rotatably connected to the slider in the chute block and the first connecting rod. The other end of the second connecting rod is rotatably connected to the lower end of the rotating handle. The middle of the rotating handle is rotatably connected to the rotating bracket. One side of the rotating bracket is installed on one side of the support frame through a bolt. A tension spring is arranged above the rotating bracket. Both ends of the tension spring are respectively connected to the support frame and the rotating handle. One side of the rotating bracket is fixedly connected to an elastic reed. The elastic reed is attached to one side of the rotating handle. Two wedge-shaped blocks are arranged on the side of the elastic reed close to the rotating handle. One side of the wedge-shaped block abuts against the rotating handle.

[0015] The beneficial effects of the present invention compared with the prior art are as follows: 1. The present invention is provided with a mixing and stirring barrel. A main stirring blade, a stirring rod and a secondary stirring blade are arranged in the mixing and stirring barrel. The main stirring blade and the stirring rod are driven to rotate by a stirring motor. The spiral main stirring blade will drive the liquid inside the mixing and stirring barrel to move upward. While the outer liquid rotates, it contacts the secondary stirring blade and moves downward along the secondary stirring blade, so that the liquid in the mixing and stirring barrel can flow up and down in a convection manner, avoiding liquid stratification. At the same time, multiple stirring rods will stir the liquid, and the liquid passing through the through holes on the stirring rods will also reduce the stratification phenomenon. And a return water pump is provided to pump the lower-layer liquid to the upper layer, further avoiding the phenomenon that solid fertilizers settle at the bottom and cause uneven mixing.

[0016] 2. The present invention is provided with a fertilizer crushing component and a pre-dissolution tank. The first crushing roller group and the second crushing roller group inside the crushing chamber are driven by a driving motor to rotate to crush fertilizer particles. The fertilizer particles after crushing can be made more uniform by the first crushing roller group and the second crushing roller group with different rotation speeds. The crushed fertilizer is discharged into the weighing bin through the discharge screw rod. The weight of the fertilizer in the weighing bin is measured by the weight detection module. When the required weight is reached, two pushing cylinders are controlled to contract to drive the rotating rod to rotate, so that the two rotating hatch doors are opened. The fertilizer inside the weighing bin falls into the pre-dissolution tank for pre-dissolution. The second electromagnetic valve is opened, the first electromagnetic valve and the third electromagnetic valve are closed, and water is transported into the pre-dissolution tank through the second water injection pipe and sprayed out through the elbow nozzle to dissolve and stir the fertilizer. After the dissolution is completed, the third electromagnetic valve is opened and the first electromagnetic valve is closed. The liquid fertilizer in the pre-dissolution tank is transported into the mixing and stirring barrel through the second fertilizer delivery pipe. By crushing the fertilizer particles, the fertilizer dissolution time is reduced. By pre-dissolving the solid fertilizer first and then mixing it with other liquid fertilizers, the time required for sufficient mixing is reduced, and the mixing efficiency is improved.

[0017] 3. The present invention is provided with a pH detection component and an EC detection component. The pH value and the conductivity of the liquid in the mixing and stirring barrel are measured by the pH detection component and the EC detection component. By comparing the pH value and the conductivity data at different heights, when the data are the same, it indicates that the fertilizer in the mixing and stirring barrel has been mixed evenly. And the pH value and the conductivity of the fertilizer also indirectly reflect the fertilizer concentration, so the fertilizer ratio concentration can be detected. By cooperating with the flowmeter to measure the flow rate of the liquid fertilizer injected into the mixing and stirring barrel and the electric control valve to control the flow rate, the ratio concentration can be adjusted according to the detection data, and the ratio accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic internal structure diagram of the mixing and stirring barrel of the present invention; Figure 3 is a schematic structural diagram of the fertilizer storage tank of the present invention; Figure 4 is a schematic internal structure diagram of the pre-dissolution tank of the present invention; Figure 5 is a schematic structural diagram of the fertilizer crushing component and the pre-dissolution barrel of the present invention; Figure 6 is a schematic structural diagram of the fertilizer crushing component and the support frame of the present invention; Figure 7 is a schematic side view of the fertilizer crushing component and the support frame of the present invention; Figure 8It is a schematic side view structure diagram of the fertilizer crushing group in the present invention; Figure 9 is Figure 8 a schematic cross-sectional structure diagram at A-A in; Figure 10 It is a schematic structure diagram of the fertilizer crushing component in the present invention; Figure 11 is Figure 10 a schematic enlarged partial structure diagram at A in; Figure 12 It is a schematic structure diagram of the locking component in the present invention.

[0019] The reference numerals in the figure are: 1. Mixing and stirring tank; 11. Stirring motor; 12. Stirring shaft; 121. Connecting rod; 122. Main stirring blade; 123. Stirring rod; 13. Sub-stirring blade; 14. Return water pump; 141. Return pipe; 15. pH detection component; 16. EC detection component; 17. Fertilizer filling pipe; 18. First sewage discharge pipe; 19. First water injection pipe; 110. Drain pipe; 2. Fertilizer storage tank; 21. First water pump; 22. First fertilizer conveying pipe; 23. Second sewage discharge pipe; 3. Pre-dissolution tank; 31. Second water pump; 32. Main conveying pipe; 321. First electromagnetic valve; 33. Second water injection pipe; 331. Second electromagnetic valve; 34. Second fertilizer conveying pipe; 341. Third electromagnetic valve; 342. Flowmeter; 343. Electric control valve; 35. Elbow nozzle; 4. Fertilizer crushing component; 41. Crushing chamber; 411. Transmission gearbox; 412. Driving motor; 413. First crushing roller group; 414. Second crushing roller group; 42. Feed hopper; 43. Discharge pipe; 431. Discharge screw; 432. Discharge motor; 44. Weighing bin; 441. Enclosure baffle; 442. Fixed block; 443. Weight detection module; 444. Longitudinal slide rail; 445. Slide block; 446. Pushing cylinder; 447. Connecting block; 448. Rotating rod; 449. Rotating shaft; 4410. Rotating frame; 4411. Rotating hatch; 45. Bottom plate; 46. Slide wheel; 47. Positioning block; 5. Support frame; 51. Guide rail; 52. Locking component; 521. Rotating seat; 522. Limiting block; 523. Locking block; 524. First connecting rod; 525. Chute block; 526. Second connecting rod; 527. Rotating bracket; 528. Rotating handle; 529. Tension spring; 5210. Elastic reed; 5211. Wedge-shaped clamping block; 6. Control terminal. Detailed implementation manners

[0020] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not distinguish components by the difference in names, but by the difference in their functions. As used throughout the specification and claims, "comprising" is an open-ended term and should be interpreted as "including but not limited to". The following description in the specification is a preferred embodiment for implementing the present application, but the description is for the purpose of explaining the general principles of the present application and is not intended to limit the scope of the present application.

[0021] As Figures 1 - 6 shown, a liquid fertilizer mixing device for new energy irrigation includes: A mixing and stirring barrel 1, on the top of the mixing and stirring barrel 1 is installed a stirring motor 11, the output end of the stirring motor 11 penetrates through the top of the mixing and stirring barrel 1 and is fixedly connected to a stirring shaft 12. Both the upper and lower ends of the stirring shaft 12 are fixedly connected with a plurality of connecting rods 121, and the plurality of connecting rods 121 are arranged in a circular pattern. A plurality of main stirring blades 122 are arranged around the outer side of the stirring shaft 12, and both the upper and lower ends of the main stirring blades 122 are fixedly connected to the connecting rods 121. A number of auxiliary stirring blades 13 are fixedly connected to the inner wall of the mixing and stirring barrel 1. Both the main stirring blades 122 and the auxiliary stirring blades 13 are arranged in a spiral shape. A plurality of stirring rods 123 are fixedly connected to the surface of the stirring shaft 12, and a number of through holes are opened on the surfaces of the plurality of stirring rods 123. By driving the stirring shaft 12 to rotate through the stirring motor 11, the main stirring blades 122 and the stirring rods 123 rotate simultaneously. The spiral main stirring blades 122 will drive the liquid inside the mixing and stirring barrel 1 to move upward, and the outer liquid will move downward along the auxiliary stirring blades 13 while rotating and contacting the auxiliary stirring blades 13, so that the liquid in the mixing and stirring barrel 1 can flow up and down, avoiding liquid stratification. At the same time, the plurality of stirring rods 123 will stir the liquid, and the liquid passing through the through holes on the stirring rods 123 will also reduce the stratification phenomenon.

[0022] A fertilizer storage tank 2 is arranged on one side of the mixing and stirring barrel 1. The fertilizer storage tank 2 is used to store liquid fertilizer. A first water pump 21 is installed on the outer side of the fertilizer storage tank 2. The upper end of the first water pump 21 is communicated with a first fertilizer delivery pipe 22. A second sewage discharge pipe 23 is arranged on one side of the first water pump 21, and the second sewage discharge pipe 23 is communicated with the bottom of the fertilizer storage tank 2.

[0023] Pre-dissolution tank 3 is arranged on one side of the pre-dissolution tank 3. The pre-dissolution tank 3 is used to dissolve solid fertilizers. First, the solid fertilizers are pre-dissolved in the pre-dissolution tank 3 and then transported to the mixing and stirring barrel 1 for mixing. A second water pump 31 is installed on the outer side of the pre-dissolution tank 3. The upper end of the second water pump 31 is connected to a main delivery pipe 32. The upper end of the main delivery pipe 32 is connected to a second water injection pipe 33. One end of the second water injection pipe 33 extending into the interior of the pre-dissolution tank 3 is connected to a plurality of elbow nozzles 35 on the outer side. The water is sprayed out through the elbow nozzles 35 to drive the liquid in the pre-dissolution tank 3 to rotate and mix and dissolve the fertilizers. One side of the second water pump 31 is connected to a second fertilizer delivery pipe 34. The second fertilizer delivery pipe 34 and the first water pump 21 are respectively connected to a fertilizer filling pipe 17. Flow meters 342 are installed at one end of the second fertilizer delivery pipe 34 and the first water pump 21 close to the fertilizer filling pipe 17. Electric control valves 343 are installed between the flow meters 342 and the fertilizer filling pipe 17. The flow meters 342 and the electric control valves 343 are both electrically connected to a control terminal 6. A first electromagnetic valve 321 is installed in the middle of the main delivery pipe 32. The first electromagnetic valve 321 is arranged above the second fertilizer delivery pipe 34. A third electromagnetic valve 341 is installed at one end of the second fertilizer delivery pipe 34 close to the main delivery pipe 32. A second electromagnetic valve 331 is installed in the middle of the second water injection pipe 33. The second electromagnetic valve 331 is arranged on one side of the main delivery pipe 32. After the solid fertilizers are added to the pre-dissolution tank 3, the second electromagnetic valve 331 is opened, and the first electromagnetic valve 321 and the third electromagnetic valve 341 are closed. Water is transported into the pre-dissolution tank 3 through the second water injection pipe 33 and sprayed out through the elbow nozzles 35. After the water volume in the pre-dissolution tank 3 reaches the requirement, the second electromagnetic valve 331 is closed, the first electromagnetic valve 321 is opened, and the second water pump 31 is started. The liquid at the bottom of the pre-dissolution tank 3 is pumped out through the main delivery pipe 32 and the second water injection pipe 33 and sprayed out again through the elbow nozzles 35, which can prevent the solid fertilizers from settling to the bottom and resulting in insufficient dissolution. After the dissolution is completed, the third electromagnetic valve 341 is opened, and the first electromagnetic valve 321 is closed. The liquid fertilizers in the pre-dissolution tank 3 are transported to the mixing and stirring barrel 1 through the second fertilizer delivery pipe 34, and the liquid flow rate transported to the mixing and stirring barrel 1 is detected by the flow meter 342, and the flow rate is adjusted by the electric control valve 343.

[0024] Fertilizer crushing assembly 4 is arranged above the pre-dissolution tank 3. The pre-dissolution tank 3 is used to crush solid fertilizers. A support frame 5 is arranged at the lower end of the fertilizer crushing assembly 4.

[0025] The fertilizer crushing assembly 4 includes a crushing chamber 41, a feed hopper 42, a discharge pipe 43 and a weighing bin 44. The feed hopper 42 is installed at the upper end of the crushing chamber 41. Inside the crushing chamber 41, a first crushing roller set 413 and a second crushing roller set 414 are rotatably connected. On one side of the crushing chamber 41, there is a transmission gearbox 411. On the side of the transmission gearbox 411 away from the crushing chamber 41, a driving motor 412 is installed. The driving motor 412 drives the first crushing roller set 413 and the second crushing roller set 414 to rotate through the transmission gears inside the transmission gearbox 411 to crush the fertilizer. The first crushing roller set 413 is arranged above the second crushing roller set 414. Both the first crushing roller set 413 and the second crushing roller set 414 are provided with two opposite crushing rollers. Through the transmission of the transmission gearbox 411, the rotation speed of the second crushing roller set 414 is higher than that of the first crushing roller set 413. Through the two groups of crushing rollers with different rotation speeds, the crushed fertilizer particles are more uniform. The lower end of the crushing chamber 41 is connected to the discharge pipe 43. Below the discharge port of the discharge pipe 43, there is a weighing bin 44 for weighing the fertilizer.

[0026] The control terminal 6 is arranged on one side of the fertilizer storage tank 2. The control terminal 6 is used to control the weight of the fertilizer added to the pre-dissolving tank 3 and the amounts of various fertilizers injected from the fertilizer storage tank 2 and the pre-dissolving tank 3 into the mixing and stirring barrel 1, and measures the flow rate of each fertilizer injected into the mixing and stirring barrel 1 through the flow meter 342, and controls the injection amount of each fertilizer through the electric control valve 343 according to the ratio requirements.

[0027] Such as Figure 2As shown in the figure, multiple fertilizer filling pipes 17 are connected to the top of the mixing and stirring tank 1. The multiple fertilizer filling pipes 17 are respectively communicated with the second fertilizer conveying pipe 34 and the first fertilizer conveying pipe 22. Liquid fertilizer is injected into the mixing and stirring tank 1 through the fertilizer filling pipes 17. A first water injection pipe 19 is arranged on one side of the fertilizer filling pipe 17. One end of the first water injection pipe 19 is communicated with the inside of the mixing and stirring tank 1, and the other end of the first water injection pipe 19 is communicated with an external water pump. A plurality of pH detection components 15 and EC detection components 16 are installed on the side wall of the mixing and stirring tank 1. The plurality of pH detection components 15 and EC detection components 16 are arranged longitudinally and are all electrically connected to the control terminal 6. The pH detection component 15 measures the hydrogen ion concentration in the solution through a composite electrode composed of a glass electrode and a reference electrode, and outputs a potential difference signal proportional to the pH value. When the solution is not evenly mixed, the pH difference can be captured by detecting multiple places. The EC detection component 16 indirectly reflects the total concentration of dissolved salts (such as fertilizer ions like nitrogen, phosphorus, potassium, etc.) by measuring the conductivity of the solution. Uneven mixing will cause fluctuations in the conductivity in different regions, and there will be a large difference in the EC value. The pH value and conductivity of the liquid in the mixing and stirring tank 1 are measured by the pH detection component 15 and the EC detection component 16, and the pH value and conductivity data at different heights are compared. When the data are the same, it means that the fertilizer in the mixing and stirring tank 1 has been evenly mixed, and the pH value and conductivity of the fertilizer also indirectly reflect the fertilizer concentration, so that the fertilizer ratio concentration can be detected. A reflux water pump 14 is arranged on one side of the mixing and stirring tank 1. The water inlet end of the reflux water pump 14 is communicated with the bottom of the mixing and stirring tank 1, and the water outlet end of the reflux water pump 14 is communicated with the top of the mixing and stirring tank 1 through a reflux pipe 141. The fertilizer at the bottom of the mixing and stirring tank 1 can be pumped to the upper part through the reflux water pump 14 to reduce liquid stratification and make the mixing more uniform. The bottom of the mixing and stirring tank 1 is communicated with a first sewage discharge pipe 18 and a liquid discharge pipe 110 for discharging liquid fertilizer.

[0028] Please refer to Figure 9 , a discharge screw rod 431 is arranged inside the discharge pipe 43. Both ends of the discharge screw rod 431 are rotatably connected to the inner wall of the discharge pipe 43. A discharge motor 432 is installed on one side of the discharge pipe 43. The output end of the discharge motor 432 is fixedly connected to the middle rotating shaft of the discharge screw rod 431. The lower end of the discharge pipe 43 is fixedly connected to the bottom plate 45 through a support column. A plurality of sliding wheels 46 are rotatably connected to the lower end of the bottom plate 45 through a mounting seat. A positioning block 47 is arranged between the sliding wheels 46, and the positioning block 47 is fixedly connected to the bottom of the bottom plate 45.

[0029] As Figures 9 - 11As shown in the figure, a baffle plate 441 is fixedly connected to the upper end of the weighing bin 44. The baffle plate 441 is arranged below the discharge port of the discharge pipe 43, which can prevent the crushed fertilizer from falling to the outside. A plurality of fixing blocks 442 are fixedly connected to both sides of the weighing bin 44. A weight detection module 443 is installed at the lower end of each of the plurality of fixing blocks 442. The lower end of the weight detection module 443 is connected to the bottom plate 45. The weight of the fertilizer in the weighing bin 44 is measured by the plurality of weight detection modules 443. The weight detection module 443 is electrically connected to the control terminal 6. The control terminal 6 controls the discharge motor 432 to drive the discharge screw 431 to rotate to discharge the crushed fertilizer and receives the weighing data of the fertilizer inside the weighing bin 44 from the weight detection module 443. When the required weight is reached, the control terminal 6 controls the discharge motor 432 to stop. A longitudinal slide rail 444 is fixedly connected to one side of the weighing bin 44. A sliding block 445 is slidably connected to the outside of the longitudinal slide rail 444. One end of the sliding block 445 is provided with two push cylinders 446 through a connecting plate. The two push cylinders 446 are symmetrically arranged. The output rod of the push cylinder 446 is fixedly connected to a connecting block 447. One end of the connecting block 447 is rotatably connected to a rotating rod 448. A rotating shaft 449 is fixedly connected to one side of the rotating rod 448. The surface of the rotating shaft 449 is rotatably connected to a rotating frame 4410. The rotating frame 4410 is fixedly connected to the side wall of the weighing bin 44. Two rotary hatch doors 4411 are arranged below the weighing bin 44. One end of each of the rotary hatch doors 4411 is fixedly connected to the rotating shaft 449. By controlling the two push cylinders 446 to contract, the rotating rod 448 is driven to rotate to open the two rotary hatch doors 4411, and the fertilizer inside the weighing bin 44 falls into the pre-dissolving tank 3.

[0030] Please refer to Figure 6 and Figure 12 , a guide rail 51 is installed above the support frame 5. The guide rail 51 is correspondingly arranged with the sliding wheel 46. The fertilizer crushing assembly 4 moves along the guide rail 51 through the sliding wheel 46. A locking assembly 52 is installed at the upper end of the support frame 5. The locking assembly 52 is used for positioning and locking the fertilizer crushing assembly 4.

[0031] Among them, the locking component 52 includes a rotating seat 521, a limiting block 522, a locking block 523 and a first connecting rod 524. The lower end of the rotating seat 521 is fixedly connected to the support frame 5. The limiting block 522 and the locking block 523 are respectively rotatably connected to both sides of the rotating seat 521. The limiting block 522 and the locking block 523 are both fan-shaped and arranged at a certain staggered angle. The limiting block 522 and the locking block 523 are respectively arranged on both sides of the positioning block 47 and are used to position and lock the positioning block 47. The locking component 52 further includes a first connecting rod 524, a sliding groove block 525, a second connecting rod 526, a rotating bracket 527, a rotating handle 528, a tension spring 529 and an elastic reed 5210. The sliding groove block 525 is fixedly connected to one side of the inner cross beam of the support frame 5. The inner slider of the sliding groove block 525 is rotatably connected to one end of the first connecting rod 524. The other end of the first connecting rod 524 is rotatably connected to the side surface of the limiting block 522. One end of the second connecting rod 526 is rotatably connected to the slider in the sliding groove block 525 and the first connecting rod 524. The other end of the second connecting rod 526 is rotatably connected to the lower end of the rotating handle 528. The middle of the rotating handle 528 is rotatably connected to the rotating bracket 527. One side of the rotating bracket 527 is installed on one side of the support frame 5 by bolts. A tension spring 529 is arranged above the rotating bracket 527. Both ends of the tension spring 529 are respectively connected to the support frame 5 and the rotating handle 528. One side of the rotating bracket 527 is fixedly connected to the elastic reed 5210. The elastic reed 5210 is attached to one side of the rotating handle 528. Two wedge-shaped blocks 5211 are arranged on the side of the elastic reed 5210 close to the rotating handle 528. One side of the wedge-shaped block 5211 abuts against the rotating handle 528. When the rotating handle 528 rotates to not abut against the two wedge-shaped blocks 5211, the limiting block 522 and the locking block 523 rotate to an angle where they do not contact the positioning block 47. When the rotating handle 528 rotates to abut against the first wedge-shaped block 5211, the limiting block 522 rotates and can block the positioning block 47 at this time, and the locking block 523 does not contact the positioning block 47. The rotating handle 528 is tightly abutted against one side of the wedge-shaped block 5211 by the elastic force of the tension spring 529. Rotate the rotating handle 528 again so that the rotating handle 528 abuts against the second wedge-shaped block 5211. At this time, the locking block 523 rotates so that the positioning block 47 is located between it and the limiting block 522, locking the positioning block 47, so that the fertilizer crushing component 4 is located above the pre-dissolving tank 3 at this time. In this embodiment, the number of the pre-dissolving tank 3 and the locking component 52 can be increased or decreased according to actual needs.

[0032] The principle of the present invention is as follows: The driving motor 412 drives the first crushing roller group 413 and the second crushing roller group 414 inside the crushing chamber 41 to rotate to crush the fertilizer particles. The crushed fertilizer is discharged into the weighing bin 44 through the discharge screw rod 431. The weight of the fertilizer in the weighing bin 44 is measured by multiple weight detection modules 443. When the required weight is reached, the two pushing cylinders 446 are controlled to contract, driving the rotating rod 448 to rotate and opening the two rotating hatch doors 4411. The fertilizer inside the weighing bin 44 falls into the pre-dissolution tank 3. The second electromagnetic valve 331 is opened, the first electromagnetic valve 321 and the third electromagnetic valve 341 are closed. Water is transported into the pre-dissolution tank 3 through the second water injection pipe 33 and sprayed out through the elbow nozzle 35 to dissolve and stir the fertilizer. After the dissolution is completed, the third electromagnetic valve 341 is opened and the first electromagnetic valve 321 is closed. The liquid fertilizer in the pre-dissolution tank 3 is transported into the mixing and stirring barrel 1 through the second fertilizer conveying pipe 34. The liquid fertilizer in the fertilizer storage tank 2 is transported into the mixing and stirring barrel 1 through the first fertilizer conveying pipe 22. The liquid flow rate transported into the mixing and stirring barrel 1 is detected by the flow meter 342, and the flow rate is adjusted by the electric control valve 343 according to the ratio requirement. The stirring motor 11 drives the stirring shaft 12 to rotate, and the main stirring blades 122 and the stirring rods 123 rotate simultaneously. The spiral main stirring blades 122 drive the liquid inside the mixing and stirring barrel 1 to move upward. While the outer liquid rotates and contacts the secondary stirring blades 13, it will move downward along the secondary stirring blades 13, enabling the liquid inside the mixing and stirring barrel 1 to flow up and down in convection, avoiding liquid stratification. At the same time, multiple stirring rods 123 agitate the liquid, and the liquid passing through the through holes on the stirring rods 123 will also reduce the stratification phenomenon. The lower-layer liquid is pumped to the upper layer by the return water pump 14 to further prevent the solid fertilizer from settling at the bottom and causing uneven mixing. The pH value and conductivity of the liquid in the mixing and stirring barrel 1 are measured by the pH detection component 15 and the EC detection component 16. By comparing the pH value and conductivity data at different heights, when the data are the same, it indicates that the fertilizer in the mixing and stirring barrel 1 has been evenly mixed, and the concentration of the liquid fertilizer can be detected based on the pH value and conductivity of the fertilizer, improving the ratio accuracy.

[0033] The above is only the specific implementation manner of this application and is not used to limit the protection scope of this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application. Any person skilled in the art within the technical scope disclosed in this application can easily think of changes or replacements, which should also be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

[0034] It should be noted that in this article, relational terms such as first and second are only used 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 "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

Claims

1. A liquid fertilizer mixing device for new energy irrigation, characterized in that, Including: A mixing and stirring tank (1), on the top of the mixing and stirring tank (1) is installed a stirring motor (11), and the output end of the stirring motor (11) penetrates through the top of the mixing and stirring tank (1) and is connected to a stirring shaft (12); A fertilizer storage tank (2), the fertilizer storage tank (2) is arranged on one side of the mixing and stirring tank (1), and the fertilizer storage tank (2) is used for storing liquid fertilizer; A pre-dissolving tank (3), the pre-dissolving tank (3) is arranged on one side of the pre-dissolving tank (3), and the pre-dissolving tank (3) is used for dissolving solid fertilizer; A fertilizer crushing assembly (4), the fertilizer crushing assembly (4) is arranged above the pre-dissolving tank (3), the pre-dissolving tank (3) is used for crushing solid fertilizer, and a support frame (5) is arranged at the lower end of the fertilizer crushing assembly (4); The fertilizer crushing assembly (4) includes a crushing chamber (41), a feed hopper (42), a discharge pipe (43) and a weighing bin (44), the feed hopper (42) is installed at the upper end of the crushing chamber (41), inside the crushing chamber (41) is rotatably connected with a first crushing roller group (413) and a second crushing roller group (414), on one side of the crushing chamber (41) is arranged a transmission gear box (411), on one side of the transmission gear box (411) is installed a driving motor (412) for driving the first crushing roller group (413) and the second crushing roller group (414) to rotate, the lower end of the crushing chamber (41) is connected with a discharge pipe (43), and below the discharge port of the discharge pipe (43) is arranged a weighing bin (44); A control terminal (6), the control terminal (6) is arranged on one side of the fertilizer storage tank (2), and the control terminal (6) is used for controlling the weight of the fertilizer added to the pre-dissolving tank (3) and the amounts of various fertilizers injected from the fertilizer storage tank (2) and the pre-dissolving tank (3) into the mixing and stirring tank (1).

2. The liquid fertilizer mixing device for new energy irrigation according to claim 1, characterized in that: Both the upper and lower ends of the stirring shaft (12) are fixedly connected with a plurality of connecting rods (121), the outer side of the stirring shaft (12) is surrounded by a plurality of main stirring blades (122), both the upper and lower ends of the main stirring blades (122) are fixedly connected with the connecting rods (121), the inner wall of the mixing and stirring tank (1) is fixedly connected with a number of auxiliary stirring blades (13), both the main stirring blades (122) and the auxiliary stirring blades (13) are arranged in a spiral shape, the top of the mixing and stirring tank (1) is connected with a plurality of fertilizer filling pipes (17), the plurality of fertilizer filling pipes (17) are respectively communicated with a second fertilizer conveying pipe (34) and a first fertilizer conveying pipe (22), on one side of the fertilizer filling pipe (17) is arranged a first water injection pipe (19), one end of the first water injection pipe (19) is communicated with the inside of the mixing and stirring tank (1), and the surface of the stirring shaft (12) is fixedly connected with a plurality of stirring rods (123), and a number of through holes are arranged on the surfaces of the plurality of stirring rods (123).

3. The liquid fertilizer mixing device for new energy irrigation according to claim 1, wherein: A plurality of pH detection components (15) and EC detection components (16) are installed on the side wall of the mixing and stirring tank (1). The plurality of pH detection components (15) and EC detection components (16) are arranged longitudinally and are all electrically connected to the control terminal (6). A return water pump (14) is arranged on one side of the mixing and stirring tank (1). The water inlet end of the return water pump (14) is communicated with the bottom of the mixing and stirring tank (1), and the water outlet end of the return water pump (14) is communicated with the top of the mixing and stirring tank (1) through a return pipe (141). The bottom of the mixing and stirring tank (1) is communicated with a first sewage discharge pipe (18) and a liquid discharge pipe (110) for discharging liquid fertilizer.

4. A liquid fertilizer mixing device for new energy irrigation according to claim 1, characterized in that: A first water pump (21) is installed on the outer side of the fertilizer storage tank (2). The upper end of the first water pump (21) is communicated with a first fertilizer delivery pipe (22). A second sewage discharge pipe (23) is arranged on one side of the first water pump (21), and the second sewage discharge pipe (23) is communicated with the bottom of the fertilizer storage tank (2). A second water pump (31) is installed on the outer side of the pre-dissolution tank (3). The upper end of the second water pump (31) is communicated with a main delivery pipe (32). The upper end of the main delivery pipe (32) is communicated with a second water injection pipe (33). A plurality of elbow nozzles (35) are connected to the outer side of one end of the second water injection pipe (33) extending into the pre-dissolution tank (3). A second fertilizer delivery pipe (34) is communicated with one side of the second water pump (31). The second fertilizer delivery pipe (34) and the first water pump (21) are respectively communicated with a fertilizer filling pipe (17). Flow meters (342) are installed at one end of the second fertilizer delivery pipe (34) and the first water pump (21) close to the fertilizer filling pipe (17), and electric control valves (343) are installed between the flow meters (342) and the fertilizer filling pipe (17).

5. The liquid fertilizer mixing device for new energy irrigation according to claim 4, characterized in that: A first electromagnetic valve (321) is installed in the middle of the main delivery pipe (32). The first electromagnetic valve (321) is arranged above the second fertilizer delivery pipe (34). A third electromagnetic valve (341) is installed at one end of the second fertilizer delivery pipe (34) close to the main delivery pipe (32). A second electromagnetic valve (331) is installed in the middle of the second water injection pipe (33). The second electromagnetic valve (331) is arranged on one side of the main delivery pipe (32).

6. The liquid fertilizer mixing device for new energy irrigation according to claim 1, characterized in that: An outlet screw rod (431) is arranged inside the outlet pipe (43). Both ends of the outlet screw rod (431) are rotatably connected to the inner wall of the outlet pipe (43). An outlet motor (432) is installed on one side of the outlet pipe (43). The output end of the outlet motor (432) is fixedly connected to the middle rotating shaft of the outlet screw rod (431). The lower end of the outlet pipe (43) is fixedly connected to the bottom plate (45) through a support column. A plurality of sliding wheels (46) are rotatably connected to the lower end of the bottom plate (45) through a mounting seat. A positioning block (47) is arranged between the sliding wheels (46), and the positioning block (47) is fixedly connected to the bottom of the bottom plate (45).

7. The liquid fertilizer mixing device for new energy irrigation according to claim 1, characterized in that: A baffle plate (441) is fixedly connected to the upper end of the weighing bin (44). The baffle plate (441) is arranged below the discharge port of the discharge pipe (43). A plurality of fixing blocks (442) are fixedly connected to both sides of the weighing bin (44). Weight detection modules (443) are installed at the lower ends of the plurality of fixing blocks (442). The lower ends of the weight detection modules (443) are connected to the bottom plate (45). The weights of the fertilizers in the weighing bin (44) are measured by the plurality of weight detection modules (443). A longitudinal slide rail (444) is fixedly connected to one side of the weighing bin (44). A sliding block (445) is slidably connected to the outer side of the longitudinal slide rail (444). Two push cylinders (446) are installed at one end of the sliding block (445) through a connecting plate. The two push cylinders (446) are symmetrically arranged. The output rod of the push cylinder (446) is fixedly connected to a connecting block (447). One end of the connecting block (447) is rotatably connected to a rotating rod (448). A rotating shaft (449) is fixedly connected to one side of the rotating rod (448). The surface of the rotating shaft (449) is rotatably connected to a rotating frame (4410). The rotating frame (4410) is fixedly connected to the side wall of the weighing bin (44). Two rotating hatch doors (4411) are arranged below the weighing bin (44). One ends of the rotating hatch doors (4411) are respectively fixedly connected to the rotating shaft (449).

8. The liquid fertilizer mixing device for new energy irrigation according to claim 1, wherein: A guide rail (51) is installed above the support frame (5). The guide rail (51) is arranged corresponding to the sliding wheel (46). The fertilizer crushing assembly (4) moves along the guide rail (51) through the sliding wheel (46). A locking assembly (52) is installed at the upper end of the support frame (5). The locking assembly (52) is used for positioning and locking the fertilizer crushing assembly (4).

9. The liquid fertilizer mixing device for new energy irrigation according to claim 8, characterized in that: The locking assembly (52) includes a rotating seat (521), a limiting block (522), a locking block (523) and a first connecting rod (524). The lower end of the rotating seat (521) is fixedly connected to the support frame (5). The limiting block (522) and the locking block (523) are respectively rotatably connected to both sides of the rotating seat (521). The limiting block (522) and the locking block (523) are both fan-shaped and arranged at a certain angle in a staggered manner. The limiting block (522) and the locking block (523) are respectively arranged on both sides of the positioning block (47) and used for positioning and locking the positioning block (47).

10. A liquid fertilizer mixing device for new energy irrigation according to claim 9, characterized in that: The locking assembly (52) further includes a first connecting rod (524), a chute block (525), a second connecting rod (526), a rotating bracket (527), a rotating handle (528), a tension spring (529) and an elastic reed (5210). The chute block (525) is fixedly connected to one side of the inner cross beam of the support frame (5). The inner slider of the chute block (525) is rotatably connected to one end of the first connecting rod (524). The other end of the first connecting rod (524) is rotatably connected to the side surface of the limit block (522). One end of the second connecting rod (526) is rotatably connected to the slider in the chute block (525) and the first connecting rod (524). The other end of the second connecting rod (526) is rotatably connected to the lower end of the rotating handle (528). The middle part of the rotating handle (528) is rotatably connected to the rotating bracket (527). One side of the rotating bracket (527) is installed on one side of the support frame (5) by bolts. A tension spring (529) is arranged above the rotating bracket (527). The two ends of the tension spring (529) are respectively connected to the support frame (5) and the rotating handle (528). One side of the rotating bracket (527) is fixedly connected to the elastic reed (5210). The elastic reed (5210) is attached to one side of the rotating handle (528). Two wedge-shaped clamping blocks (5211) are arranged on the side of the elastic reed (5210) close to the rotating handle (528). One side of the wedge-shaped clamping block (5211) abuts against the rotating handle (528).

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