Automatic cleaning device for inner wall of liquid fertilizer storage tank

Abstract

The utility model relates to the technical field of liquid fertilizer processing, in particular to an automatic cleaning device for the inner wall of a liquid fertilizer storage tank, which comprises a tank body, a liquid storage space is arranged in the tank body, the upper part and the lower part of the tank body are respectively provided with a feed port and a discharge port, the top of the tank body is provided with a rotating motor, the rotating motor is coaxially connected with a rotating shaft, and the rotating shaft vertically penetrates into the tank body; a transverse rod is transversely connected to the rotating shaft, a supporting rod is vertically arranged at the end, close to the inner wall of the tank body, of the transverse rod, a vibration wall scraping structure is arranged on the supporting rod, the vertical length of the supporting rod is consistent with the depth of the tank body, and the supporting rod is used for vibrating and scraping stubborn impurities in the tank body; the vibration wall scraping structure comprises a miniature vibration motor and a scraping piece, the miniature vibration motor is fixed between the scraping piece and the supporting rod, and the scraping piece makes contact with the inner wall of the tank body. The technical problem of automatic cleaning of the inner wall of the storage tank after liquid fertilizer raw material preparation reaction is solved.

Description

Technical Field

[0001] This utility model relates to the field of liquid fertilizer processing technology, and more specifically, to an automatic cleaning device for the inner wall of a liquid fertilizer storage tank. Background Technology

[0002] Liquid fertilizer is a type of fertilizer that exists in liquid form. It typically contains essential nutrients for plant growth, such as nitrogen, phosphorus, and potassium, as well as trace elements, organic matter, or microorganisms. Compared to traditional solid fertilizers, liquid fertilizers are characterized by rapid dissolution, high absorption efficiency, and ease of use, and are widely used in agriculture, horticulture, and home gardening. The preparation process of liquid fertilizer involves pouring various liquid raw materials into a reaction vessel, adding auxiliary agents, and reacting and mixing them to produce the finished liquid fertilizer product.

[0003] In the existing technology, after the various raw materials of liquid fertilizer are reacted and prepared in a reaction tank to form liquid fertilizer, and then the liquid fertilizer is discharged from the outlet of the tank, the inner wall of the tank will form residues due to the reaction of the liquid fertilizer raw materials. These residues include harder crystalline residues and softer colloidal residues. When cleaned with a regular brush or water, the harder residues are difficult to wash off and continue to adhere to the inner wall of the tank. During the repeated liquid fertilizer preparation process, these residues will continue to accumulate in the inner wall of the tank, affecting the preparation of liquid fertilizer in the tank.

[0004] A Chinese utility model patent, titled "An Automatic Cleaning Device for Liquid Fertilizer Storage Tanks" (publication number CN220781687U), discloses a rotating drive assembly located on the top exterior of the storage tank body. This assembly includes a support frame with an annular groove on the top exterior of the support frame. Evenly distributed arc-shaped sliders slide within the annular groove, and a drive gear ring is welded to the bottom of each arc-shaped slider. A cleaning component is located at the center of the drive gear ring. This utility model uses a cleaning brush rod that rotates against the inner wall of the tank, combined with a continuously rotating spray pipe, to clean the inner wall of the tank.

[0005] Although this invention utilizes a cleaning brush and a spray pipe together to clean the inner wall of the tank, thus improving the cleaning effect, it is difficult to remove crystalline residues generated during the reaction of liquid fertilizer raw materials using the cleaning brush, resulting in poor cleaning performance. Summary of the Invention

[0006] The purpose of this application is to provide an automatic cleaning device for the inner wall of a liquid fertilizer storage tank, which solves the technical problem of automatic cleaning of the inner wall of the storage tank after the liquid fertilizer raw material preparation and reaction.

[0007] To solve the above-mentioned technical problems, the solution adopted in this application is as follows:

[0008] An automatic cleaning device for the inner wall of a liquid fertilizer storage tank includes a tank body, the inside of which is a liquid storage space, and inlet and outlet ports are provided at the top and bottom of the tank body.

[0009] Preferably, a rotating motor is installed on the top of the tank, the rotating motor is coaxially connected to a rotating shaft, and the rotating shaft is vertically inserted inside the tank.

[0010] Preferably, a crossbar is horizontally connected to the rotating shaft, and a support rod is vertically installed on the end of the crossbar near the inner wall of the tank. A vibration scraping structure is installed on the support rod, and the vertical length of the support rod is consistent with the depth of the tank.

[0011] Preferably, the vibratory wall scraping structure includes a miniature vibratory motor and a scraper, with the miniature vibratory motor fixed between the scraper and the support rod, and the scraper in contact with the inner wall of the tank.

[0012] Preferably, the inner wall of the tank is also provided with a number of high-pressure water spray heads, which are connected to an external pump water pressure through water pipes extending out of the tank, and the water spray direction of the high-pressure water spray heads is towards the inner wall of the tank.

[0013] Preferably, the crossbar is located in the middle of the tank, and the support rod is divided into an upper support rod and a lower support rod, which are respectively hinged to the crossbar.

[0014] Preferably, the crossbar is further provided with two rotating components, the rotating ends of the two rotating components are respectively connected to the hinge ends of the upper support rod and the lower support rod, and the rotation direction is along the vertical direction of the tank.

[0015] Preferably, when cleaning the tank, the upper support rod and the lower support rod form a right angle with the crossbar via the rotating assembly.

[0016] Preferably, when the tank cleaning work is not carried out, the angle between the upper support rod and the lower support rod and the crossbar through the rotating assembly is an acute angle.

[0017] Preferably, the tank body is also provided with a number of stirring blades, which are evenly arranged in a circular pattern on the rotating shaft.

[0018] Preferably, the upper support rod and the lower support rod are located in the gap space between adjacent stirring blades through the rotation path of the rotating assembly.

[0019] Preferably, the rotating assembly includes a hinge rod.

[0020] Preferably, the crossbar is slidably fitted with a sliding sleeve along its length. The sliding sleeve is connected to the upper support rod and the lower support rod respectively through two hinge rods. The two ends of the two hinge rods are respectively hinged to the sliding sleeve and the upper support rod, and the sliding sleeve and the lower support rod, forming an umbrella-shaped structure.

[0021] Preferably, the crossbar has an clearance cavity inside, and a displacement driving component is fixed inside the clearance cavity.

[0022] Preferably, the crossbar has a slot along its length, the slot passing through the clearance cavity, and the driving end of the displacement drive component is fixedly connected to the sliding sleeve outside the crossbar through the slot.

[0023] Preferably, a stop is provided at the end of the crossbar where it is hinged to the support rod.

[0024] Preferably, when cleaning the tank, the baffle is located between the support rod and the inner wall of the tank.

[0025] Preferably, the scraper is formed by combining several evenly arranged oblique blades.

[0026] The technical solution of this application has at least the following advantages and beneficial effects:

[0027] In this invention, a horizontal bar is set on a rotatable shaft and connected to a vertical bar. A vibrating scraper structure is set on the vertical bar. The vibrating scraper structure uses a vibrating micro motor to drive the scraper blades to make micro-vibration contact with the inner wall of the pipe, which quickly vibrates and peels off the crystalline and colloidal residues attached to the inner wall of the tank. Then, a high-pressure water spray head is used to flush the residues to the outlet, thus achieving automatic cleaning of the residues that are difficult to clean.

[0028] In this invention, by hinged the support rod to the crossbar and driven by a rotating assembly, the support rod and the moving scraper structure on the support rod can be folded and stored at the crossbar when cleaning is not being performed. This avoids the cleaning device from continuously contacting the inner wall of the tank during the liquid fertilizer raw material preparation reaction, thus preventing ineffective cleaning work. Attached Figure Description

[0029] Figure 1 This is a cross-sectional structural diagram of the tank body of this utility model.

[0030] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0031] Figure 3 In this utility model Figure 2 An enlarged structural diagram.

[0032] Figure 4 This is a cross-sectional view of the rotating component in this utility model.

[0033] Figure 5 This is a schematic diagram of the vibratory wall scraping structure in this utility model.

[0034] In the diagram: 1-tank body, 2-rotating motor, 3-rotating shaft, 4-crossbar, 5-rotating assembly, 501-hinged rod, 502-sliding sleeve, 503-avoiding cavity, 504-displacement drive component, 505-grooving, 6-lower support rod, 7-upper support rod, 8-vibrating scraper structure, 801-micro vibration motor, 802-scraper blade, 9-high-pressure flushing head. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. The terms "center," "upper," "lower," "inner," and "outer," indicating orientation or positional relationships based on the orientation or positional relationships shown in the figures, or the orientation or positional relationships commonly used when the product is in use, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation on this application. It should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In existing technologies, during the mixing and preparation of liquid fertilizer raw materials, the required solid raw materials, water, and auxiliary agents are placed in a reaction tank and mixed and reacted according to a certain ratio to produce liquid fertilizer. After preparation, the liquid fertilizer flows out through the outlet of the reaction tank. However, during the reaction, nutrients such as humic acid, nitrogen, phosphorus, and potassium in the solid raw materials will adhere to the inner wall of the tank, forming a layer of residue (such as humic acid colloid and NPK crystals), which is difficult to clean by flushing with water.

[0038] Example 1

[0039] Please refer to Figures 1-5This utility model provides an automatic cleaning device for the inner wall of a liquid fertilizer storage tank, including a tank 1 for storing prepared liquid fertilizer. The tank 1 has inlet and outlet ports at the top and bottom. When the liquid fertilizer flows out from the outlet port at the bottom of the tank 1, the inner wall of the tank 1 can be cleaned.

[0040] The tank body 1 is equipped with a rotating motor 2, which is coaxially fixedly connected to a rotating shaft 3 to drive it to rotate. The rotating shaft 3 passes through the inside of the tank body 1, and a horizontal bar 4 is fixedly connected to the rotating shaft 3 to allow the horizontal bar 4 to rotate horizontally.

[0041] A vertical support rod is installed on one end of the crossbar 4 near the inner wall of the tank 1. A vibrating scraping structure 8 is installed on the support rod, and the length of the support rod is the same as the depth of the tank 1. During the cleaning process inside the tank 1, the horizontally rotating crossbar 4 drives the support rod to move in a circular motion, so that the vibrating scraping structure 8 on the support rod comes into contact with the inner wall of the tank 1, scraping away the residue on the inner wall of the tank 1.

[0042] Furthermore, the vibratory scraping structure 8 includes a micro vibration motor 801 and a scraper 802. The micro vibration motor 801 is fixed between the scraper 802 and the support rod and is connected to the control power supply via a cable. The scraper 802 is formed by a combination of several evenly arranged oblique blades. During cleaning, several oblique blades in the scraper 802 contact the inner wall of the tank 1. Then, the control power supply is turned on, and the micro vibration motor 801 vibrates, causing the oblique blades to vibrate at high frequency and small amplitude, forming a "vibratory scraping" effect.

[0043] This vibration changes the contact between the scraper 802 and the inner wall of the tank 1 from static friction to dynamic friction, allowing the vibration to be transmitted to the interface between the residue and the tank wall, disrupting the intermolecular forces and physical adsorption forces, causing the adhesive layer to peel off from the surface of the tank wall, achieving a cleaning effect and improving the peeling efficiency.

[0044] Among them, the miniature vibration motor 801 can also peel off different types of residues through vibration at different frequencies:

[0045] For brittle crystalline residues (such as phosphates): the high-frequency vibration of the micro vibration motor 801 causes local stress concentration, leading to crystal breakage.

[0046] For viscous colloidal residues (such as humic acid): the miniature vibration motor 801 uses low-frequency vibration to weaken the adhesion between the colloid and the tank wall through shear waves.

[0047] Furthermore, several high-pressure water nozzles are fixed inside the inner wall of the tank 1. The high-pressure water nozzles are connected to an external pump to pressurize the water through water pipes that pass through the tank 1. The water spray direction of the high-pressure water nozzles is towards the inner wall of the tank 1, spraying high-pressure water jets onto the inner wall of the tank 1. After the vibrating scraping structure 8 cleans the residue on the inner wall of the tank 1, these residues are washed off and flow out of the tank 1 from the discharge port, achieving an automatic cleaning effect.

[0048] Example 2

[0049] Because after the inner wall of the tank 1 is cleaned, it will continue to be used in the reaction preparation process of liquid fertilizer. At this time, stirring blades are also fixed on the rotating shaft 3. The rotating shaft 3 is used to stir the raw materials in the tank 1 to accelerate the reaction. Therefore, the crossbar 4, support rod and vibrating scraper structure 8 on the rotating shaft 3 will rotate. In order to avoid the cleaning device interfering with the stirring and reaction effect of the raw materials, the cleaning device needs to be folded and stored.

[0050] Please refer to Figures 2-5 In this embodiment, the crossbar 4 is located in the middle of the tank body 1, and the support rod is divided into an upper support rod 7 and a lower support rod 6, which are respectively hinged to the crossbar 4, so that the support rod can swing and fold, and thus be folded and stored at the crossbar 4.

[0051] The crossbar 4 is also equipped with a rotating component 5, which is connected to the hinge end of the support rod (the upper support rod 7 and the lower support rod 6 are respectively connected to a rotating component 5), providing driving force for the swing of the support rod and causing it to swing.

[0052] During the stirring reaction of raw materials in tank 1, the rotating component 5 drives the upper support rod 7 and the lower support rod 6 (at this time, the angle between the support rod and the horizontal rod 4 is a right angle) to swing towards the horizontal rod 4, folding the upper support rod 7 and the lower support rod 6 to a position close to the surface of the horizontal rod 4 (at this time, the angle between the support rod and the horizontal rod 4 is an acute angle), so as to avoid the vibrating scraping structure 8 on the support rod from constantly contacting the inner wall of tank 1 during the stirring reaction, thus avoiding ineffective cleaning work (because the residue generated by the reaction is constantly being generated at this time).

[0053] During the automatic cleaning of residues on the inner wall of tank 1, the rotating component 5 drives the folded upper support rod 7 and lower support rod 6 to swing towards the inner wall of tank 1 simultaneously, swinging the upper support rod 7 and lower support rod 6 to an upright position. At this time, the vibrating scraping structure 8 on the support rod comes into contact with the inner wall of tank 1, and the vibrating scraping structure 8 and high-pressure water spray head are used to clean the inner wall of tank 1.

[0054] The swing paths of the upper support rod 7 and the lower support rod 6 are located between the blade gaps of the stirring blades, so that when the upper support rod 7 and the lower support rod 6 swing and fold, they will not interfere with or touch the stirring blades on the rotating shaft 3, thus preventing damage. The crossbar 4 and the folded support rods can also rotate together with the stirring blades during the stirring reaction process to provide auxiliary stirring.

[0055] Example 3

[0056] Please refer to Figure 3 and Figure 4 In this embodiment, in order to avoid the rotating component 5 being directly exposed in the reaction space inside the tank 1 and to reduce the volume of the entire cleaning device, the rotating component 5 includes a hinge rod 501, a sliding sleeve 502, a clearance cavity 503, a displacement drive component 504, and a slot 505.

[0057] Specifically, a sliding sleeve 502 is slidably fitted along the outer length of the crossbar 4. The sliding sleeve 502 is connected to the upper support rod 7 and the lower support rod 6 respectively through a hinge rod 501. The two ends of the hinge rod 501 are respectively hinged to the sliding sleeve 502 and the upper support rod 7 (lower support rod 6), forming an umbrella-shaped structure. When the sliding sleeve 502 slides on the crossbar 4, the sliding sleeve 502 will push the two support rods through the hinge rod 501, causing the two support rods to swing along the hinge end of the crossbar 4.

[0058] Specifically, the crossbar 4 has an internal clearance cavity 503, within which a displacement drive component 504 is fixed. The displacement drive component 504 is an electric cylinder, and its push rod is fixedly connected to a sliding sleeve 502 on the outside of the crossbar 4, driving the sliding sleeve 502 to slide on the crossbar 4. A slot 505 is provided along the length of the crossbar 4, penetrating the clearance cavity 503, thus fixing the sliding sleeve 502 on the outside of the crossbar 4 and the push rod of the electric cylinder inside the crossbar 4 together, achieving the connection operation.

[0059] In addition, a stop block is fixed at the end where the crossbar 4 is hinged to the two support rods. The stop block is located on the outer edge of the hinged end of the support rod. When the support rod swings close to the inner wall of the tank 1, the stop block will block the support rod when the support rod swings until it forms a right angle with the crossbar 4, thus restricting it from continuing to swing towards the inner wall of the tank 1, thereby restricting the support rod to a vertical state and improving the fit between the vibrating scraping structure 8 and the inner wall of the tank 1.

[0060] It is worth noting that the space between the push rod of the electric cylinder and the clearance cavity 503 is filled with sealing rubber, so that the space of the electric cylinder body in the clearance cavity 503 is a sealed space, preventing the liquid in the tank 1 from entering the clearance cavity 503 through the slot 505 and coming into contact with the circuit of the electric cylinder body in the clearance cavity 503, which would cause damage to the circuit.

[0061] It is worth noting that the clearance cavity 503 runs through the entire crossbar 4, and the rotating shaft 3 connected to the crossbar 4 is hollow inside, with its top end connected to the outside. This allows external power and control cables to pass through the top end of the rotating shaft 3 and enter the clearance cavity 503 of the crossbar 4, connecting with the electric cylinder in the clearance cavity 503. At this time, when the rotating shaft 3 rotates, the cable passing through the top end of the rotating shaft 3 will not rotate with the rotating shaft 3, reducing the occurrence of cable rotation and entanglement. Some cables will also pass through the sealing rubber and connect to the miniature vibration motor 801 on one end of the support rod of the crossbar 4, providing it with control power. Since the support rod can swing, the cable connected to the miniature vibration motor 801 in the clearance cavity 503 has a slack, which can extend out of the clearance cavity 503 when the support rod swings, preventing the cable from being stretched and broken by the swinging support rod.

[0062] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solution of this utility model based on the above description. The scope of this utility model is defined by the appended claims.

Claims

1. An automatic cleaning device for the inner wall of a liquid fertilizer storage tank, comprising a tank body (1), the interior of which is a liquid storage space, and inlet and outlet ports provided at the top and bottom of the tank body (1), characterized in that... ； A rotating motor (2) is installed on the top of the tank (1), and the rotating motor (2) is coaxially connected to a rotating shaft (3), which is vertically inserted inside the tank (1). A horizontal bar (4) is connected to the rotating shaft (3) laterally. A support rod is vertically installed on one end of the horizontal bar (4) near the inner wall of the tank (1). A vibration scraping structure (8) is installed on the support rod. The vertical length of the support rod is consistent with the depth of the tank (1). The vibrating scraping structure (8) includes a micro vibration motor (801) and a scraper (802). The micro vibration motor (801) is fixed between the scraper (802) and the support rod, and the scraper (802) is in contact with the inner wall of the tank (1). Two rotating components (5) are also provided on the crossbar (4). The support rod is divided into an upper support rod (7) and a lower support rod (6). The rotating component (5) includes a hinge rod (501). The crossbar (4) is slidably fitted with a sliding sleeve (502) along its length. The sliding sleeve (502) is connected to the upper support rod and the lower support rod respectively through two hinge rods (501). The two ends of the two hinge rods (501) are respectively hinged to the sliding sleeve (502) and the upper support rod (7), and the sliding sleeve (502) and the lower support rod (6), forming an umbrella-shaped structure. The crossbar (4) has an clearance cavity (503) inside, and a displacement driving component (504) is fixed inside the clearance cavity (503). A slot (505) is provided on the crossbar (4) along its length direction. The slot (505) passes through the relief cavity (503). The driving end of the displacement driving component (504) is fixedly connected to the sliding sleeve (502) outside the crossbar (4) through the slot (505).

2. The automatic cleaning device for the inner wall of a liquid fertilizer storage tank according to claim 1, characterized in that, Several high-pressure water nozzles are also provided in the inner wall of the tank (1). The high-pressure water nozzles are connected to the external pump water pressure through water pipes that pass through the tank (1). The water spraying direction of the high-pressure water nozzles is towards the inner wall of the tank (1).

3. The automatic cleaning device for the inner wall of a liquid fertilizer storage tank according to claim 1, characterized in that, The crossbar (4) is located in the middle of the tank body (1), and the upper support rod (7) and the lower support rod (6) are respectively hinged to the crossbar (4); The rotating ends of the two rotating components (5) are respectively connected to the hinge ends of the upper support rod (7) and the lower support rod (6), and the rotation direction is along the vertical direction of the tank body (1).

4. The automatic cleaning device for the inner wall of a liquid fertilizer storage tank according to claim 3, characterized in that, When cleaning the tank (1), the upper support rod (7) and the lower support rod (6) form a right angle with the crossbar (4) through the rotating assembly (5); If the tank (1) is not cleaned, it will die. The upper support rod (7) and the lower support rod (6) form an acute angle between the rotating assembly (5) and the crossbar (4).

5. The automatic cleaning device for the inner wall of a liquid fertilizer storage tank according to claim 3, characterized in that, The tank (1) is also provided with several stirring blades, which are evenly arranged in a circular pattern on the rotating shaft (3); The upper and lower support rods are located in the gap space between adjacent stirring blades through the rotation path of the rotating assembly (5).

6. The automatic cleaning device for the inner wall of a liquid fertilizer storage tank according to claim 1, characterized in that, A stop block is also provided at the end of the crossbar (4) where it is hinged to the support rod; When cleaning the tank (1), the baffle is located between the support rod and the inner wall of the tank (1).

7. The automatic cleaning device for the inner wall of a liquid fertilizer storage tank according to claim 1, characterized in that, The scraper (802) is formed by combining several evenly arranged oblique blades.

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