Liquid urea stock solution mixing equipment

Abstract

The utility model discloses liquid urea stock solution mixing equipment which comprises a shell, a urea box is arranged at the upper end of the shell, the outer surface of the urea box penetrates through the outer surface of the shell, an electromagnetic valve is fixedly installed at the position, located at one end in the shell, of the urea box, and a feeding port is formed in the outer surface of one side of the urea box. And a stirring motor is fixedly mounted at the lower end of the shell. According to the liquid urea stock solution mixing equipment, the gear is driven through rotation of the driving motor, the gear pulls up the piston to the required metering through the gear block, the adjusting sliding block is adjusted to the position of the proximity switch, then the injected urea solution can be quantified, and after the electromagnetic valve is closed, urea is pumped into the urea box through the water pump; along with pumping of the urea solution, the piston is pushed up, when the adjusting sliding block makes contact with the proximity switch, the water pump stops working, the one-way valve prevents liquid in the urea box from being exposed, and automatic quantification of the urea solution is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid urea mixing, in particular to liquid urea stock solution mixing equipment. Background Art

[0002] In traditional agricultural production, farmers usually use solid urea as nitrogen fertilizer, but this fertilizer needs to be processed complicatedly before it can be produced. In contrast, liquid urea has a higher nitrogen content and better solubility. It can be sprayed directly on crops, quickly penetrate into the soil and be absorbed by crops, reducing the loss and volatilization of nitrogen.

[0003] According to different planting environments and soil environments, urea solutions of different concentrations need to be mixed. However, during the mixing process, the capacity of the urea stock solution needs to be measured each time before it can be injected into the water for stirring. Each process is very troublesome and the urea stock solution is prone to spilling. Utility Model Content

[0004] The utility model aims to provide a liquid urea stock solution mixing device to solve the problem in the above background technology that the urea stock solution needs to be weighed every time it is mixed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid urea stock solution mixing device, comprising a shell, a urea tank is arranged at the upper end of the shell, and the outer surface of the urea tank penetrates the outer surface of the shell, and the urea tank located at one end inside the shell is fixedly installed with a solenoid valve, a feed port is arranged on the outer surface of one side of the urea tank, a stirring motor is fixedly installed at the lower end of the shell, and a discharge port is opened on the side surface of the lower end of the shell, and the discharge port of the shell is provided with a solenoid valve, and an automatic quantitative structure is arranged inside the urea tank, and a fixed amount of liquid urea is delivered into the urea tank through a water pump through the automatic quantitative structure.

[0006] Preferably, the automatic quantitative structure includes a piston, the piston is connected to the urea tank by sliding friction, and the piston and the urea tank are of concentric design, and the end of the piston away from the solenoid valve passes through the upper end of the urea tank, the feed port of the urea tank is provided with a one-way valve, and the upper end of the urea tank is provided with a drive motor, and the output end of the drive motor is fixedly installed with a gear, the side surface of the piston is fixedly installed with a gear block, and the gear block and the gear are meshed with each other, the upper end of the urea tank is clamped and installed with a box cover, and the outer surface of the box cover is fixedly installed with a proximity switch, and the side of the piston away from the gear block is slidably installed with an adjusting slider, and the side surface of the adjusting slider is provided with a fastening screw.

[0007] By adopting the above technical solution, by adjusting the height of the adjusting slider on the piston, urea solution is injected into the urea tank through the water pump. When the urea solution is injected to the set amount of the urea tank, the water pump stops working after the proximity switch is triggered.

[0008] Preferably, a rotating structure is provided inside the shell, and the liquid urea is evenly mixed by the rotating structure.

[0009] By adopting the above technical solution, the rotating urea solution is broken up and disturbed by the rotating structure.

[0010] Preferably, the rotating structure includes a stirring motor, which is fixedly mounted at the lower end of the shell, and the lower end of the shell is penetrated by the output end of the stirring motor, the output end of the stirring motor is fixedly mounted with a rotating shaft, and one end of the rotating shaft is rotatably mounted inside the shell, a rotating shell is penetrated through the outer surface of the rotating shaft, and one end of the rotating shell is rotatably connected to the shell, and the rotating shaft and the rotating shell are concentrically designed, the outer surface of the rotating shell is in contact with the stirring blade, and a fastening block is fixedly mounted on the side surface of the stirring blade, and the fastening block and the stirring blade are connected by threads.

[0011] By adopting the above technical solution, the stirring blade can be easily replaced.

[0012] Preferably, an auxiliary stirring mechanism is rotatably installed inside the shell, and the urea solution inside the shell is stirred by the auxiliary stirring mechanism so that the urea solution rotates in the housing as the auxiliary stirring mechanism rotates.

[0013] By adopting the above technical solution, the solution at the lower end of the shell is turned upward by the auxiliary rotating structure.

[0014] Preferably, the auxiliary stirring mechanism includes a bottom stirring rod, the outer surface of the bottom stirring rod passes through the outer surface of the rotating shaft, and the rotating shaft and the bottom stirring rod are concentrically designed, and the upper end of the bottom stirring rod is provided with a first engaging tooth, and the lower end of the rotating shell away from the urea tank is provided with a first engaging tooth, and the rotating shell and the bottom stirring rod are engaged with each other.

[0015] By adopting the above technical solution, the bottom stirring rod is driven to rotate while the rotating shaft rotates, and the rotation of the bottom stirring rod drives the rotating shell to rotate, so that the stirring piece rotates and stirs the solution in the shell together with the bottom stirring rod.

[0016] Preferably, an electromagnet is fixedly installed at the lower end of the bottom stirring rod, and the electromagnet and the bottom stirring rod are concentrically designed, and a spring is arranged between the bottom stirring rod and the shell, and a second engaging tooth is arranged on the outer surface of the rotating shaft, and the second engaging tooth is engaged with the bottom stirring rod, and the bottom stirring rod can slide on the outer surface of the second engaging tooth.

[0017] By adopting the above technical solution, when the electromagnet is energized, the bottom stirring rod will be driven to move downward to compress the spring, allowing the electromagnet to be adsorbed on the inner surface of the shell, so that the bottom stirring rod is separated from the rotating outer shell, and the rotating outer shell stops rotating. The side surface of the bottom stirring rod will fit with the inner surface of the shell, and the bottom stirring rod will rotate through the rotation of the stirring motor, so that the remaining solution inside the shell after discharge is scraped off by the bottom stirring rod and discharged from the shell.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the liquid urea stock solution mixing device:

[0019] 1. The gear is driven by the rotation of the driving motor, and the gear pulls the piston to the required metering through the tooth block. The adjusting slider is adjusted to the position of the proximity switch to complete the quantitative injection of urea solution. After the solenoid valve is closed, urea is pumped into the urea tank through the water pump. As the urea solution is pumped in, the piston is pushed up. When the adjusting slider contacts the proximity switch, the water pump stops working and the one-way valve prevents the liquid in the urea tank from leaking out, completing the automatic quantitative measurement of urea solution.

[0020] 2. Inject a certain amount of water into the shell, inject urea solution into the shell according to the required solution concentration, and then start the stirring motor. The rotation of the stirring motor drives the rotating shaft to rotate, so that the rotating shaft drives the bottom stirring rod to rotate and the rotating shell to rotate to quickly stir the solution in the shell, so that the solution in the shell is stirred evenly from bottom to top;

[0021] 3. When the electromagnet is working and adsorbed to the inner surface of the shell, it will drive the bottom stirring rod to move on the outer surface of the second engaging tooth, so that the bottom stirring rod is separated from the rotating shell, and the side surface of the bottom stirring rod is fitted with the inner surface of the shell. The solution that has not been emptied at the lower end of the shell is completely discharged through the rotation of the stirring motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the connection between the shell and the bottom stirring rod of the utility model;

[0026] Figure 5 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0027] Figure 6 For this utility model Figure 2 Enlarged structural diagram at B in the middle.

[0028] In the figure: 1. shell; 2. urea tank; 3. piston; 4. gear block; 5. drive motor; 6. gear; 7. box cover; 8. proximity switch; 9. adjustment slider; 10. one-way valve; 11. solenoid valve; 12. rotating shaft; 13. rotating shell; 14. stirring piece; 15. fastening block; 16. bottom stirring rod; 17. first engaging tooth; 18. spring; 19. second engaging tooth; 20. electromagnet; 21. stirring motor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-6 The utility model provides a technical solution: a liquid urea stock solution mixing device, comprising a shell 1, a urea tank 2 is arranged at the upper end of the shell 1, and the outer surface of the urea tank 2 penetrates the outer surface of the shell 1, and the urea tank 2 at one end inside the shell 1 is fixedly installed with a solenoid valve 11, a feed port is arranged on one side of the outer surface of the urea tank 2, a stirring motor 21 is fixedly installed at the lower end of the shell 1, and a discharge port is opened on the side surface of the lower end of the shell 1, and the discharge port of the shell 1 is provided with a solenoid valve 11, and an automatic quantitative structure is arranged inside the urea tank 2, and a fixed amount of liquid urea is sent into the urea tank 2 through a water pump through the automatic quantitative structure, and the automatic quantitative structure includes a piston 3. The piston 3 and the urea tank 2 are connected by sliding friction, and the piston 3 and the urea tank 2 are concentrically designed, and the end of the piston 3 away from the solenoid valve 11 passes through the upper end of the urea tank 2, the feed port of the urea tank 2 is provided with a one-way valve 10, and the upper end of the urea tank 2 is provided with a drive motor 5, and the output end of the drive motor 5 is fixedly installed with a gear 6, the side surface of the piston 3 is fixedly installed with a gear block 4, and the gear block 4 and the gear 6 are meshed with each other, the upper end of the urea tank 2 is clamped and installed with a box cover 7, and the outer surface of the box cover 7 is fixedly installed with a proximity switch 8, and the side of the piston 3 away from the gear block 4 is slidably installed with an adjusting slider 9, and the side surface of the adjusting slider 9 is provided with a fastening screw.

[0031] Connect one end of the water pump to the container filled with urea raw liquid, open the box cover 7, and drive the gear 6 to rotate through the rotation of the drive motor 5, meshing with the gear block 4, driving the piston 3 to rise. When the piston 3 reaches the scale line of the required capacity, turn off the drive motor 5, adjust the height of the adjusting slider 9 on the piston 3, so that the proximity switch 8 can be triggered by the adjusting slider 9, and then close the solenoid valve 11 at the lower end of the urea tank 2. The urea is pumped into the interior of the urea tank 2 through the water pump, and the piston 3 will be lifted. When the proximity switch 8 is triggered, the water pump stops the one-way valve 10 to prevent the urea liquid from being unloaded, so that the urea liquid is quantitatively extracted.

[0032] A rotating structure is provided inside the shell 1, and the rotating urea solution is broken up and disturbed by the rotating structure. The rotating structure includes a stirring motor 21, which is fixedly mounted on the lower end of the shell 1, and the lower end of the shell 1 is penetrated by the output end of the stirring motor 21. A rotating shaft 12 is fixedly mounted on the output end of the stirring motor 21, and one end of the rotating shaft 12 is rotatably mounted inside the shell 1. A rotating shell 13 is penetrated and installed on the outer surface of the rotating shaft 12, and one end of the rotating shell 13 is rotatably connected to the shell 1, and the rotating shaft 12 and the rotating shell 13 are concentrically designed.

[0033] When the solenoid valve 11 at the lower end of the urea tank 2 is opened, the drive motor 5 works, and the piston 3 moves to push the urea solution into the shell 1. Then the stirring motor 21 starts to drive the rotating shaft 12 to rotate, and the bottom stirring rod 16 is engaged with the second engaging tooth 19, so that the bottom stirring rod 16 rotates with it. Through the engagement of the first engaging tooth 17 with the rotating shell 13, the rotating shell 13 rotates together, so that the stirring blade 14 cuts the liquid, and the solution in the shell 1 is quickly stirred, so that the urea solution and water are more evenly and quickly merged.

[0034] The outer surface of the rotating housing 13 is in contact with the stirring blade 14 , and a fastening block 15 is fixedly mounted on the side surface of the stirring blade 14 , and the fastening block 15 and the stirring blade 14 are connected by threads.

[0035] The agitating blade 14 can be fixedly mounted on the outer surface of the rotating housing 13 by the fastening block 15 , and the agitating blade 14 can be installed at different heights, which also facilitates the replacement of the agitating blade 14 .

[0036] An auxiliary stirring mechanism is rotatably installed inside the shell 1, and the urea solution inside the shell 1 is stirred by the auxiliary stirring mechanism so that the urea solution rotates in the box body as the auxiliary stirring mechanism rotates. The auxiliary stirring mechanism includes a bottom stirring rod 16, and the outer surface of the bottom stirring rod 16 passes through the outer surface of the rotating shaft 12, and the rotating shaft 12 and the bottom stirring rod 16 are concentrically designed, and the upper end of the bottom stirring rod 16 is provided with a first engaging tooth 17, and the lower end of the rotating shell 13 away from the urea tank 2 is provided with a first engaging tooth 17, and the rotating shell 13 and the bottom stirring rod 16 are engaged with each other, and the lower end of the bottom stirring rod 16 is fixedly installed with an electromagnet 20, and the electromagnet 20 and the bottom stirring rod 16 are concentrically designed, and a spring 18 is arranged between the bottom stirring rod 16 and the shell 1, and the outer surface of the rotating shaft 12 is provided with a second engaging tooth 19, and 19 is engaged with the bottom stirring rod 16, and the bottom stirring rod 16 can slide on the outer surface of the second engaging tooth 19.

[0037] After the solution in the shell 1 is stirred, the solenoid valve 11 at the lower end of the shell 1 can be opened to discharge and store the solution, and then the electromagnet 20 can be started. Through the attraction of the electromagnet 20 and the shell 1, the bottom stirring rod 16 is moved on the outer surface of the second engaging tooth 19, so that the side surface of the bottom stirring rod 16 is close to the inner surface of the shell 1, and at the same time, the bottom stirring rod 16 is separated from the rotating shell 13, and the remaining solution at the lower end of the shell 1 is swept out by the rotation of the stirring motor 21, and then the electromagnet 20 is closed to reset the bottom stirring rod 16 through the spring 18, so that there is no residual solution at the bottom of the shell 1.

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

Claims

1. A liquid urea stock solution mixing device, comprising a shell (1), a urea tank (2) is arranged at the upper end of the shell (1), and the outer surface of the urea tank (2) penetrates the outer surface of the shell (1), and the urea tank (2) located at one end inside the shell (1) is fixedly installed with a solenoid valve (11), a feed port is arranged on one side outer surface of the urea tank (2), a stirring motor (21) is fixedly installed at the lower end of the shell (1), and a discharge port is opened on the side surface of the lower end of the shell (1), and the discharge port of the shell (1) is provided with a solenoid valve (11), characterized in that: An automatic quantitative structure is arranged inside the urea tank (2), and a fixed amount of liquid urea is delivered into the urea tank (2) through a water pump via the automatic quantitative structure.

2. The liquid urea stock solution mixing device according to claim 1, characterized in that: The automatic quantitative structure comprises a piston (3), wherein the piston (3) is connected to the urea tank (2) by sliding friction, and the piston (3) and the urea tank (2) are of concentric design, and the end of the piston (3) away from the solenoid valve (11) penetrates the upper end of the urea tank (2), the feed port of the urea tank (2) is provided with a one-way valve (10), and the upper end of the urea tank (2) is provided with a drive motor (5), and the output end of the drive motor (5) is fixedly mounted with a gear block (4), and the gear block (4) and the gear (6) are meshed with each other, the upper end of the urea tank (2) is clamped and mounted with a box cover (7), and the outer surface of the box cover (7) is fixedly mounted with a proximity switch (8), and the side of the piston (3) away from the gear block (4) is slidably mounted with an adjusting slider (9), and the side surface of the adjusting slider (9) is provided with a fastening screw.

3. The liquid urea stock solution mixing device according to claim 1, characterized in that: A rotating structure is arranged inside the shell (1), and the rotating urea solution is dispersed and disturbed by the rotating structure.

4. The liquid urea stock solution mixing device according to claim 3, characterized in that: The rotating structure comprises a stirring motor (21), wherein the stirring motor (21) is fixedly mounted at the lower end of the shell (1), and the lower end of the shell (1) is penetrated by the output end of the stirring motor (21), a rotating shaft (12) is fixedly mounted at the output end of the stirring motor (21), and one end of the rotating shaft (12) is rotatably mounted inside the shell (1), a rotating shell (13) is penetrated and mounted on the outer surface of the rotating shaft (12), and one end of the rotating shell (13) is rotatably connected to the shell (1), and the rotating shaft (12) and the rotating shell (13) are concentrically designed, the outer surface of the rotating shell (13) is in contact with the stirring blade (14), and a fastening block (15) is fixedly mounted on the side surface of the stirring blade (14), and the fastening block (15) and the stirring blade (14) are connected by threads.

5. The liquid urea stock solution mixing device according to claim 4, characterized in that: An auxiliary stirring mechanism is rotatably installed inside the shell (1), and the urea solution inside the shell (1) is stirred by the auxiliary stirring mechanism so that the urea solution rotates inside the shell as the auxiliary stirring mechanism rotates.

6. The liquid urea stock solution mixing device according to claim 5, characterized in that: The auxiliary stirring mechanism comprises a bottom stirring rod (16), the outer surface of the bottom stirring rod (16) penetrates the outer surface of the rotating shaft (12), the rotating shaft (12) and the bottom stirring rod (16) are designed to be concentric, and the upper end of the bottom stirring rod (16) is provided with a first engaging tooth (17), the lower end of the rotating shell (13) away from the urea tank (2) is provided with the first engaging tooth (17), and the rotating shell (13) and the bottom stirring rod (16) are engaged with each other.

7. The liquid urea stock solution mixing device according to claim 6, characterized in that: An electromagnet (20) is fixedly mounted on the lower end of the bottom stirring rod (16), and the electromagnet (20) and the bottom stirring rod (16) are of concentric design, and a spring (18) is arranged between the bottom stirring rod (16) and the housing (1), and a second engaging tooth (19) is arranged on the outer surface of the rotating shaft (12), and the second engaging tooth (19) is engaged with the bottom stirring rod (16), and the bottom stirring rod (16) can slide on the outer surface of the second engaging tooth (19).

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