A defoaming mixing tank for fertilizer mixing

Abstract

This utility model relates to a defoaming mixing tank for fertilizer mixing, belonging to the field of fertilizer mixing technology. It includes a tank body with a feed inlet at the top and a discharge outlet at the bottom. A stirring shaft is rotatably connected to the tank body through the top of the tank body. A through groove is formed through the side wall of the stirring shaft, and a defoaming block is slidably disposed within the through groove. The outer wall of the defoaming block is in contact with the inner wall of the through groove. A limiting component is provided between the defoaming block and the stirring rod to keep the defoaming block and the stirring shaft relatively stationary. Defoaming rods are fixedly disposed at both ends of the defoaming block, and several teeth are fixedly disposed at the bottom of the defoaming rods. Several stirring blades are fixedly disposed on the side wall of the stirring shaft, and the teeth and stirring blades are all located inside the tank body. This application has the effect of facilitating the defoaming and mixing of liquid fertilizers and improving the applicability of the defoaming mixing tank.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer mixing technology, and in particular to a defoaming mixing tank for fertilizer mixing. Background Technology

[0002] In the production process of liquid fertilizer, it is usually necessary to mix the liquid using a mixing device. Since the liquid is prone to foaming during the high-speed rotation of the mixing device, defoaming treatment is usually required in the mixing tank to avoid the foam affecting the uniformity and utilization rate of the mixture.

[0003] A related technology, Chinese patent CN213942809U, discloses a defoaming mixing tank for liquid fertilizer production. It includes a shell with an inlet at the top and an outlet at the bottom. A stirring rod is rotatably mounted inside the shell. A set of fixing plates and several stirring blades are fixedly installed on the stirring rod. The fixing plates are located above the stirring blades, and a row of teeth is fixedly installed at the bottom of the fixing plates. Liquid fertilizer is added to the shell through the inlet. The rotation of the stirring rod drives the stirring blades and teeth to rotate. The rotating blades stir and mix the liquid fertilizer, while air bubbles in the liquid fertilizer rise to the surface. When the air bubbles reach the surface, the teeth puncture them, achieving the effect of defoaming and stirring the liquid fertilizer.

[0004] In the process of developing this application, the inventors discovered that the technology has at least the following problems: Since the teeth are fixedly installed on the stirring rod, the teeth can only be used to puncture the air bubbles on the surface of the liquid fertilizer when the liquid fertilizer level is within a limited range. When the liquid fertilizer is too small to make the liquid fertilizer level unable to contact the teeth, the stirring blades can only be used to stir the liquid fertilizer. Utility Model Content

[0005] In order to facilitate defoaming and mixing of liquid fertilizers and improve the applicability of defoaming mixing tanks, this application provides a defoaming mixing tank for fertilizer mixing.

[0006] The defoaming mixing tank for fertilizer mixing provided in this application adopts the following technical solution:

[0007] A defoaming mixing tank for fertilizer mixing includes a tank body with an inlet at the top and an outlet at the bottom. A stirring shaft is rotatably connected to the tank body through the top of the tank body. A through groove is formed through the side wall of the stirring shaft, and a defoaming block is slidably disposed within the through groove. The outer wall of the defoaming block is in contact with the inner wall of the through groove. A limiting component is provided between the defoaming block and the stirring rod to keep the defoaming block and the stirring shaft relatively stationary. Defoaming rods are fixedly disposed at both ends of the defoaming block, and several teeth are fixedly disposed at the bottom of the defoaming rods. Several stirring blades are fixedly disposed on the side wall of the stirring shaft, and the teeth and stirring blades are all located inside the tank body.

[0008] By adopting the above technical solution, liquid fertilizer is added to the tank through the inlet. Then, according to the liquid fertilizer level, the defoaming block slides, causing the defoaming block to move up and down the teeth. When the teeth contact the liquid fertilizer surface, the limiting component limits the defoaming block and the stirring shaft, keeping them relatively stationary. Then, the stirring shaft is driven to rotate, which drives the stirring blades and teeth to rotate synchronously. The rotating stirring blades stir and mix the liquid fertilizer, while the teeth puncture the air bubbles that float to the surface of the liquid fertilizer. By using the sliding connection between the defoaming block and the stirring shaft, the teeth move up and down with the liquid fertilizer level, achieving a convenient defoaming and stirring effect for liquid fertilizer and improving the applicability of the defoaming mixing tank.

[0009] Preferably, the limiting assembly includes a limiting screw, a limiting nut, a limiting sleeve, and a limiting ring plate. A through hole is formed at the top of the stirring shaft, and the through hole communicates with a through groove. The limiting screw passes through the through hole and is slidably connected to the through hole. The bottom end of the limiting screw is connected to the top of the defoaming block. The limiting nut and the limiting ring plate are both sleeved on the limiting screw, and the limiting ring plate is movably connected to the limiting screw. The limiting nut is threadedly connected to the limiting screw and is located between the bottom of the limiting ring plate and the top of the stirring shaft. The bottom end of the limiting nut abuts against the top end of the stirring shaft, and the top end of the limiting nut abuts against the bottom end of the limiting ring plate. The limiting sleeve is sleeved on the limiting ring plate and is fixedly connected to the limiting ring plate. The limiting sleeve is threadedly connected to the stirring shaft.

[0010] By adopting the above technical solution, when the defoaming block moves up and down along the stirring shaft, the limiting sleeve is first rotated relative to the stirring shaft. After the limiting sleeve separates from the stirring shaft, the limiting nut and the limiting screw rotate relative to each other until the limiting nut and the limiting ring plate are both disengaged from the limiting screw. Then, the limiting screw is moved, and the limiting screw drives the defoaming block to move up and down along the stirring shaft. When the defoaming block and the stirring shaft remain relatively stationary, the limiting nut is first threaded onto the limiting screw until the bottom end of the limiting nut abuts against the top end of the stirring shaft. Then, the limiting ring plate is fitted onto the limiting screw, and the limiting sleeve is threaded onto the stirring shaft until the bottom end of the limiting ring plate abuts against the top end of the limiting nut. When the limiting nut abuts between the limiting ring plate and the stirring shaft, the defoaming block and the stirring shaft remain relatively stationary.

[0011] Preferably, a corrugated tube is sleeved on the limiting screw, the corrugated tube is located in the through groove, the top end of the corrugated tube is fixedly connected to the inner wall of the through groove, and the bottom end of the corrugated tube is fixedly connected to the top end of the defoaming block.

[0012] By adopting the above technical solution, the bellows provides protection for the limiting screw.

[0013] Preferably, the outer wall of the stirring shaft has an external thread groove located above the tank body, and the inner ring wall of the limiting sleeve has an internal thread groove, which cooperates with the external thread groove.

[0014] By adopting the above technical solution, the stirring shaft and the limiting sleeve are connected by internal and external thread grooves.

[0015] Preferably, a transmission gear is sleeved on the stirring shaft, the transmission gear is fixedly connected to the stirring shaft, the transmission gear is rotatably connected to the top of the tank, the transmission gear is located below the external thread groove, a drive motor is fixedly installed on the top of the tank, a drive gear is fixedly installed on the output shaft of the drive motor, and the drive gear and the transmission gear mesh with each other.

[0016] By adopting the above technical solution, the drive motor starts and drives the drive gear to rotate, the drive gear rotates and drives the transmission gear to rotate, and the transmission gear rotates and drives the stirring shaft to rotate.

[0017] Preferably, a scraper is fixedly installed at the end of the stirring blade away from the stirring shaft, and the scraper is in contact with the inner wall of the tank.

[0018] By adopting the above technical solution, the scraper eliminates the air bubbles adhering to the inner wall of the tank.

[0019] Preferably, a feed pipe is connected to the feed inlet and fixedly connected to the tank body. A filter screen is inserted into the feed pipe, and an abutment ring plate is fixedly installed at the top of the filter screen. The bottom of the abutment ring plate is used to abut against the top of the feed pipe. An end cap is detachably installed at the top of the abutment ring plate to close the top of the feed pipe.

[0020] By adopting the above technical solution, when the liquid fertilizer poured into the tank needs to be filtered, the end cap is removed from the top of the abutment ring plate, and then the liquid fertilizer is poured into the filter screen cylinder. The liquid fertilizer enters the tank after being filtered through the filter screen cylinder. If the filter screen cylinder needs to be cleaned, it is removed from the feed pipe for cleaning. When the liquid fertilizer poured into the tank does not need to be filtered, the filter screen cylinder is removed from the feed pipe, and then the liquid fertilizer is poured into the feed pipe. The liquid fertilizer enters the tank through the feed pipe.

[0021] Preferably, a discharge pipe is connected to the discharge port, the discharge pipe is fixedly connected to the tank body, and a discharge valve is provided on the discharge pipe.

[0022] By adopting the above technical solution, when the discharge valve is opened, the liquid fertilizer in the tank is discharged from the discharge pipe, and when the discharge valve is closed, the discharge pipe is cut off.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a tank body, inlet, outlet, stirring shaft, through groove, defoaming block, limiting component, defoaming rod, teeth and stirring blades, and adopting the sliding connection between the defoaming block and the stirring shaft, the teeth can rise and fall with the liquid fertilizer level, thereby achieving the effect of defoaming and stirring the liquid fertilizer and improving the applicability of the defoaming mixing tank;

[0025] 2. By setting limit screws, limit nuts, limit sleeves, limit rings, and through holes, the defoaming block and the stirring shaft are kept relatively stationary;

[0026] 3. By setting a bellows, the limit screw is protected. Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of a defoaming mixing tank for fertilizer mixing according to an embodiment of this application.

[0028] Figure 2 This is a cross-sectional view illustrating the positional relationship between the stirring blade and the defoaming rod in an embodiment of this application.

[0029] Figure 3 This is a cross-sectional view illustrating the connection between the defoaming block and the stirring shaft in the embodiments of this application.

[0030] Figure 4This is a cross-sectional view illustrating the connection relationship between the limiting screw and the stirring shaft in the embodiments of this application.

[0031] Figure 5 This is a schematic diagram illustrating the connection relationship between the limiting sleeve and the stirring shaft in the embodiments of this application.

[0032] Figure 6 This is a cross-sectional view illustrating the positional relationship between the limiting screw and the bellows in the embodiments of this application.

[0033] Figure 7 This is a cross-sectional view illustrating the connection between the drive motor and the stirring shaft in an embodiment of this application.

[0034] Figure 8 This is a cross-sectional view illustrating the connection between the feed pipe and the filter cylinder in the embodiments of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Tank body; 11. Inlet; 111. Inlet pipe; 112. Filter screen cylinder; 113. Abutment ring plate; 114. End cap; 12. Outlet; 121. Outlet pipe; 122. Outlet valve; 2. Stirring shaft; 21. Stirring blade; 22. Scraper; 23. External threaded groove; 3. Through groove; 31. Through hole; 4. Defoaming block; 41. Defoaming rod; 42. Tooth; 5. Limiting assembly; 51. Limiting screw; 52. Limiting nut; 53. Limiting sleeve; 531. Internal threaded groove; 54. Limiting ring plate; 6. Bellows; 7. Drive motor; 71. Drive gear; 72. Transmission gear. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0037] This application discloses an antifoaming mixing tank for fertilizer mixing. (See also...) Figures 1 to 8The system includes a tank body 1, on which an inlet pipe 111 and an outlet pipe 121 are welded. An inlet 11 is located at the top of the tank body 1, and the inlet pipe 111 is connected to the inlet 11. An outlet 12 is located at the bottom of the tank body 1, and the outlet pipe 121 is connected to the outlet 12. A outlet valve 122 is installed on the outlet pipe 121. When the outlet valve 122 is open, the liquid fertilizer in the tank body 1 is discharged from the outlet pipe 121. When the outlet valve 122 is closed, the outlet pipe 121 is cut off. A filter screen cylinder 112 is inserted into the inlet pipe 111. An abutment ring plate 113 is installed at the top of the filter screen cylinder 112, and the bottom of the abutment ring plate 113 is used to abut against the top of the inlet pipe 111. A detachable end cap 114 is installed at the top of the abutment ring plate 113 to close the top of the inlet pipe 111. When the liquid fertilizer poured into tank 1 needs to be filtered, remove the end cap 114 from the top of the abutment ring plate 113, and then pour the liquid fertilizer into the filter screen cylinder 112. The liquid fertilizer enters tank 1 after being filtered through the filter screen cylinder 112. If the filter screen cylinder 112 needs to be cleaned, remove the filter screen cylinder 112 from the feed pipe 111 for cleaning. When the liquid fertilizer poured into tank 1 does not need to be filtered, remove the filter screen cylinder 112 from the feed pipe 111, and then pour the liquid fertilizer into the feed pipe 111. The liquid fertilizer enters tank 1 through the feed pipe 111.

[0038] To mix and defoam liquid fertilizer, refer to... Figure 1 and Figure 2A stirring shaft 2 is installed through the top of the tank body 1, and the stirring shaft 2 is rotatably connected to the tank body 1 via bearings. A through groove 3 is opened through the side wall of the stirring shaft 2, and a defoaming block 4 is slidably installed in the through groove 3, with the outer wall of the defoaming block 4 in contact with the inner wall of the through groove 3. A limiting component 5 is installed between the defoaming block 4 and the stirring rod to keep the defoaming block 4 and the stirring shaft 2 relatively stationary. Defoaming rods 41 are installed at both ends of the defoaming block 4, and several teeth 42 are installed at the bottom of the defoaming rods 41, all of which are located inside the tank body 1. Several stirring blades 21 are installed on the side wall of the stirring shaft 2, and all of the stirring blades 21 are located inside the tank body 1. There are no stirring blades 21 in the projection area directly above or below the defoaming rods 41. A scraper 22 is installed at the end of the stirring blade 21 away from the stirring shaft 2, and the scraper 22 is in contact with the inner wall of the tank body 1. Based on the liquid fertilizer level, the defoaming block 4 slides, causing the teeth 42 to rise and fall. Once the teeth 42 contact the liquid fertilizer surface, the limiting component 5 limits the defoaming block 4 to the stirring shaft 2, keeping them relatively stationary. Then, the stirring shaft 2 is driven to rotate, causing the stirring blades 21, teeth 42, and scraper 22 to rotate synchronously. The stirring blades 21 mix the liquid fertilizer; the scraper 22 eliminates air bubbles adhering to the inner wall of the tank 1; and the teeth 42 puncture air bubbles that rise to the surface of the liquid fertilizer. By using a sliding connection between the defoaming block 4 and the stirring shaft 2, the teeth 42 rise and fall with the liquid fertilizer level, achieving a convenient defoaming and mixing effect for liquid fertilizer and improving the applicability of the defoaming mixing tank.

[0039] To keep the defoaming block 4 relatively stationary with respect to the stirring shaft 2, refer to... Figures 1 to 5The limiting assembly 5 includes a limiting screw 51, a limiting nut 52, a limiting sleeve 53, and a limiting ring plate 54. A through hole 31 is formed at the top of the stirring shaft 2, and the through hole 31 communicates with the through groove 3. The limiting screw 51 passes through the through hole 31 and is movably connected to the through hole 31. The bottom end of the limiting screw 51 is connected to the top of the defoaming block 4. Both the limiting nut 52 and the limiting ring plate 54 are fitted onto the limiting screw 51. The limiting ring plate 54 is movably connected to the limiting screw 51, and the limiting nut 52 is threadedly connected to the limiting screw 51. The limiting nut 52 is located between the bottom of the limiting ring plate 54 and the top of the stirring shaft 2. The bottom end of the limiting nut 52 abuts against the top end of the stirring shaft 2, and the top end of the limiting nut 52 abuts against the bottom end of the limiting ring plate 54. The limiting sleeve 53 is fitted onto the limiting ring plate 54 and is welded to the limiting ring plate 54. An external threaded groove 23 is formed on the outer wall of the stirring shaft 2, located above the tank body 1. An internal threaded groove 531 is formed on the inner ring wall of the limiting sleeve 53. The internal threaded groove 531 and the external threaded groove 23 cooperate with each other to make the limiting sleeve 53 threadedly connected to the stirring shaft 2. When the defoaming block 4 is raised and lowered along the stirring shaft 2, the limiting sleeve 53 and the stirring shaft 2 are rotated relative to each other first. After the limiting sleeve 53 is separated from the stirring shaft 2, the limiting nut 52 and the limiting screw 51 are rotated relative to each other until the limiting nut 52 and the limiting ring plate 54 are both disengaged from the limiting screw 51. Then the limiting screw 51 is moved, and the limiting screw 51 drives the defoaming block 4 to rise and fall along the stirring shaft 2. When the defoaming block 4 and the stirring shaft 2 are kept relatively stationary, first connect the limiting nut 52 to the limiting screw 51 until the bottom end of the limiting nut 52 abuts against the top end of the stirring shaft 2. Then, put the limiting ring plate 54 on the limiting screw 51 and connect the limiting sleeve 53 to the stirring shaft 2 until the bottom end of the limiting ring plate 54 abuts against the top end of the limiting nut 52. When the limiting nut 52 abuts between the limiting ring plate 54 and the stirring shaft 2, the defoaming block 4 and the stirring shaft 2 remain relatively stationary.

[0040] Reference Figure 6 A bellows 6 is fitted onto the limiting screw 51, and the bellows 6 is located inside the through groove 3. The top end of the bellows 6 is sealed to the inner wall of the through groove 3, and the bottom end of the bellows 6 is sealed to the top end of the defoaming block 4, so that the bellows 6 protects the limiting screw 51.

[0041] In order to drive the stirring shaft 2 to rotate, refer to Figures 1 to 7 A transmission gear 72 is fitted onto the stirring shaft 2, located below the external threaded groove 23. The transmission gear 72 is welded to the stirring shaft 2, and is rotatably connected to the top of the tank body 1 via bearings. A drive motor 7 is mounted on the top of the tank body 1, and a drive gear 71 is mounted on the output shaft of the drive motor 7. The drive gear 71 meshes with the transmission gear 72. When the drive motor 7 starts, it drives the drive gear 71 to rotate, which in turn drives the transmission gear 72 to rotate, which in turn drives the stirring shaft 2 to rotate.

[0042] The implementation principle of a defoaming mixing tank for fertilizer mixing in this application embodiment is as follows: Based on the liquid fertilizer level, the defoaming block 4 slides, causing the defoaming block 4 to move the teeth 42 up and down. When the teeth 42 contact the liquid fertilizer surface, the limiting component 5 limits the defoaming block 4 to the stirring shaft 2, keeping them relatively stationary. Then, the stirring shaft 2 is driven to rotate, causing the stirring blades 21, teeth 42, and scraper 22 to rotate synchronously. The stirring blades 21 rotate to stir and mix the liquid fertilizer; the scraper 22 eliminates air bubbles adhering to the inner wall of the tank 1; and the teeth 42 puncture air bubbles that float to the surface of the liquid fertilizer. By using a sliding connection between the defoaming block 4 and the stirring shaft 2, the teeth 42 rise and fall with the liquid fertilizer level, achieving a convenient defoaming and stirring effect for liquid fertilizer, thus improving the applicability of the defoaming mixing tank.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A defoaming type mixing tank for mixing fertilizers, comprising a tank body, a feeding port being formed on the top of the tank body, and a discharging port being formed on the bottom of the tank body, characterized in that: A stirring shaft is installed through the top of the tank and is rotatably connected to the tank. A through groove is opened through the side wall of the stirring shaft, and a defoaming block is slidably installed in the through groove. The outer wall of the defoaming block is in contact with the inner wall of the through groove. A limiting component is provided between the defoaming block and the stirring rod to keep the defoaming block and the stirring shaft relatively stationary. Defoaming rods are fixedly installed at both ends of the defoaming block, and several teeth are fixedly installed at the bottom of the defoaming rods. Several stirring blades are fixedly installed on the side wall of the stirring shaft. The teeth and stirring blades are all located inside the tank.

2. The defoaming type mixing tank for mixing fertilizers according to claim 1, characterized in that: The limiting assembly includes a limiting screw, a limiting nut, a limiting sleeve, and a limiting ring plate. A through hole is formed at the top of the stirring shaft, and the through hole communicates with a through groove. The limiting screw passes through the through hole and is slidably connected to the through hole. The bottom end of the limiting screw is connected to the top of the defoaming block. The limiting nut and the limiting ring plate are both sleeved on the limiting screw, and the limiting ring plate is movably connected to the limiting screw. The limiting nut is threadedly connected to the limiting screw and is located between the bottom of the limiting ring plate and the top of the stirring shaft. The bottom end of the limiting nut abuts against the top end of the stirring shaft, and the top end of the limiting nut abuts against the bottom end of the limiting ring plate. The limiting sleeve is sleeved on the limiting ring plate and is fixedly connected to the limiting ring plate. The limiting sleeve is threadedly connected to the stirring shaft.

3. The defoaming type mixing tank for mixing fertilizers according to claim 2, characterized in that: A corrugated tube is sleeved on the limiting screw. The corrugated tube is located in the through groove. The top end of the corrugated tube is fixedly connected to the inner wall of the through groove, and the bottom end of the corrugated tube is fixedly connected to the top end of the defoaming block.

4. The defoaming type mixing tank for mixing fertilizers according to claim 2, characterized in that: The outer wall of the stirring shaft has an external threaded groove, which is located above the tank body. The inner ring wall of the limiting sleeve has an internal threaded groove, which cooperates with the external threaded groove.

5. The defoaming mixing tank for fertilizer mixing according to claim 4, characterized in that: A transmission gear is sleeved on the stirring shaft. The transmission gear is fixedly connected to the stirring shaft and rotatably connected to the top of the tank. The transmission gear is located below the external thread groove. A drive motor is fixedly installed on the top of the tank. A drive gear is fixedly installed on the output shaft of the drive motor. The drive gear and the transmission gear mesh with each other.

6. The defoaming type mixing tank for mixing fertilizers according to claim 1, characterized in that: A scraper is fixedly installed at the end of the stirring blade away from the stirring shaft, and the scraper is in contact with the inner wall of the tank.

7. The defoaming type mixing tank for mixing fertilizers according to claim 1, characterized in that: A feed pipe is connected to the feed inlet and is fixedly connected to the tank body. A filter screen is inserted into the feed pipe. An abutment ring plate is fixedly installed at the top of the filter screen. The bottom of the abutment ring plate is used to abut against the top of the feed pipe. An end cap is detachably installed at the top of the abutment ring plate to close the top of the feed pipe.

8. The defoaming mixing tank for fertilizer mixing according to claim 1, characterized in that: A discharge pipe is connected to the discharge port, and the discharge pipe is fixedly connected to the tank body. A discharge valve is installed on the discharge pipe.

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