A continuous stirring device for processing corrosion-resistant waterborne epoxy paint

Abstract

The utility model relates to water -based paint processing technical field, the utility model provides a kind of for corrosion -resistant water -based epoxy paint processing continuous stirring device, it includes stirring tank body, upper cover, stirring shaft, hierarchical stirring subassembly and annular discharge passage, upper cover detachably setting in the top of stirring tank body and setting feed hopper;The upper end of stirring shaft is provided with control mechanism, its lower end is connected with the bottom rotation of stirring tank body and passes through upper cover;Hierarchical stirring subassembly is set on stirring shaft, and it is distributed along the axial variable diameter distribution of stirring tank body;Annular discharge passage is located in the bottom of upper cover and is empty set on stirring shaft, annular discharge passage is communicated with feed hopper, and its lower end is radially inclined to stirring shaft, material is guided to the working range of hierarchical stirring subassembly.In the above technical scheme, the technical problem of the prior art that material cannot be classified and fully stirred, the coordination of feeding and stirring is poor, material deposition occurs easily in continuous generation and is inconvenient to clean and maintain is solved.

Description

Technical Field

[0001] This utility model relates to the field of water-based paint processing technology, specifically to a continuous stirring device for processing corrosion-resistant water-based epoxy paint. Background Technology

[0002] Corrosion-resistant waterborne epoxy paints play a vital role in modern industry due to their environmental friendliness and corrosion resistance. Achieving high quality relies heavily on the efficient and uniform mixing of complex material systems containing high viscosity, easy settling, and large amounts of solid fillers using agitation equipment during the production process.

[0003] In existing technologies, there are many types of mixing equipment used for water-based epoxy paint processing, most of which use a single-point feed inlet paired with a single type of impeller to mix the materials entering the mixing equipment. However, although ordinary impellers can replace manual mixing for simple purposes, their simple structure makes it impossible to classify and thoroughly mix the materials, resulting in poor micro-dispersion and filler agglomeration, leading to a large amount of material deposition at the bottom of the mixing equipment. Furthermore, since the single-point feed inlet is usually located on one side of the top of the mixing equipment, the coordination between the feeding and mixing processes is poor. Even with continuous feeding, material will still deposit in a certain area at the bottom of the mixing equipment, and the impeller needs a long time to gradually entrain these newly entered materials into the mixing area for mixing. This process not only creates a significant concentration gradient but also seriously affects the quality of the paint.

[0004] Meanwhile, the mixing equipment used in the existing technology is generally a one-piece molded or welded structure. This structure has problems such as inconvenience in internal cleaning and difficulty in maintenance and repair, resulting in poor production continuity and difficulty in ensuring hygiene standards.

[0005] Therefore, there is an urgent need for a continuous mixing device for processing corrosion-resistant waterborne epoxy paint that can achieve graded compound mixing, ensure efficient coordination between the feeding and mixing processes, effectively prevent material deposition during continuous production, and facilitate cleaning and maintenance. Utility Model Content

[0006] To overcome the above-mentioned defects, this utility model provides a continuous stirring device for processing corrosion-resistant water-based epoxy paint, which solves the technical problems in the prior art, such as the inability to classify and fully stir materials, poor coordination between the feeding process and the stirring process, easy material deposition in continuous production, and inconvenience in cleaning and maintenance.

[0007] According to one aspect, at least one embodiment of the present invention provides a continuous stirring apparatus for processing corrosion-resistant water-based epoxy paint, comprising: The mixing tank has an opening at the top; The top cover is detachably mounted on the top of the mixing tank and a feed hopper is provided thereon. A stirring shaft is arranged along the axial direction of the mixing tank body. A control mechanism is provided at the upper end of the stirring shaft, and its lower end passes through the upper cover and is rotatably connected to the bottom of the mixing tank body in the inner cavity. A graded mixing assembly is sleeved on the mixing shaft and located in the inner cavity of the mixing tank. The graded mixing assembly is distributed with varying diameter along the axial direction of the mixing tank to grade and mix the material from top to bottom. An annular feeding channel is located at the bottom of the upper cover and loosely fitted above the stirring shaft of the grading and stirring assembly. The annular feeding channel is connected to the feed hopper, and its lower end is radially inclined inward close to the stirring shaft to guide the material into the working range of the grading and stirring assembly.

[0008] For example, in a continuous stirring device for processing corrosion-resistant water-based epoxy paint provided in at least one embodiment of the present invention, the graded stirring component includes: a wide-width stirring unit located below the annular feeding channel to initially disperse large pieces of filler; an axial stirring unit for promoting longitudinal circulation of materials is provided below the wide-width stirring unit; and a toothed stirring unit for refining and mixing materials is provided below the axial stirring unit.

[0009] For example, in a continuous stirring device for processing corrosion-resistant water-based epoxy paint provided by at least one embodiment of the present invention, the annular feeding channel includes: an annular pipe, a stirring shaft disposed at the bottom of the upper cover and loosely fitted above the wide-width stirring unit, a feeding hopper passing through the upper cover and communicating with the annular pipe, an annular feeding platform or at least three feeding pipes evenly distributed around the lower end of the annular pipe, the annular feeding platform or the feeding pipe communicating with the inner cavity of the annular pipe, and its lower end inclined inward along the radial direction of the annular pipe close to the stirring shaft, so as to guide the material into the working range of the wide-width stirring unit.

[0010] For example, in a continuous stirring device for processing corrosion-resistant water-based epoxy paint provided by at least one embodiment of the present invention, the wide-width stirring unit includes: wide-width blades located radially in the upper inner cavity of the stirring tank body, and at least two wide-width blades are provided and evenly spaced along the inner circumference of the stirring tank body.

[0011] For example, in a continuous stirring device for processing corrosion-resistant water-based epoxy paint provided by at least one embodiment of the present invention, the wide blade includes: a vertical blade, one end of which is mounted on the stirring shaft via a connector, and the other end of which extends close to the upper side wall of the stirring tank body, and the vertical blade is provided with a plurality of guide holes through it along its thickness direction.

[0012] For example, in a continuous stirring device for processing corrosion-resistant water-based epoxy paint provided by at least one embodiment of the present invention, the width of the vertical blade of the wide blade gradually increases from one end near the stirring shaft to the other end, and its upper or lower edge is arc-shaped, with one arc-shaped edge being longer than the other edge. At least two wide blades are arranged radially and centrally symmetrically in the stirring tank body.

[0013] For example, in a continuous stirring device for processing corrosion-resistant water-based epoxy paint provided in at least one embodiment of the present invention, the axial stirring unit includes: a propeller blade located below the wide blade and surrounding the stirring shaft, wherein the propeller blade has at least three blades.

[0014] For example, in a continuous stirring device for processing corrosion-resistant water-based epoxy paint provided by at least one embodiment of the present invention, the toothed stirring unit includes: toothed blades located below the propeller blades and radially positioned within the lower inner cavity of the stirring tank body; at least two toothed blades are provided and evenly spaced along the inner circumference of the stirring tank body.

[0015] For example, in a continuous stirring device for processing corrosion-resistant water-based epoxy paint provided by at least one embodiment of the present invention, the toothed blade includes: a horizontal blade, one end of which is mounted on the stirring shaft via a connector, and the other end of which extends close to the lower side wall of the stirring tank body, and the bottom of the horizontal blade is evenly and densely covered with multiple toothed components.

[0016] For example, in a continuous stirring device for processing corrosion-resistant water-based epoxy paint provided by at least one embodiment of the present invention, the stirring tank body is provided with a plurality of guide plates evenly spaced circumferentially on its inner sidewall corresponding to the wide blade, and the guide plates are inclined inward along the radial direction of the stirring tank body and close to the wide blade, and a plurality of downwardly inclined protruding teeth are evenly distributed on the inclined surface of the guide plates from top to bottom.

[0017] The beneficial effects of the embodiments of this utility model are as follows: In this invention, the annular feeding channel works in conjunction with the grading and mixing assembly. The annular feeding channel guides the material into the working range of the grading and mixing assembly, avoiding material accumulation and improving the synergy between the feeding and mixing processes. At the same time, the grading and mixing assembly is distributed along the axial diameter of the mixing tank, enabling thorough grading and mixing from top to bottom, achieving micro-refining and dispersion of the material, and preventing material deposition at the bottom of the tank. Furthermore, the separate design of the top cover and the mixing tank body makes it easier to clean and maintain the parts of the entire device.

[0018] In this invention, a wide-width stirring unit is used to specifically break up large pieces of filler, an axial stirring unit drives the material to circulate longitudinally, a toothed stirring unit achieves micro-refining mixing, and the three-stage stirring units work together to further ensure the effect of graded stirring.

[0019] In this invention, the material flows circumferentially within the annular pipe by cooperating with the feeding hopper. Combined with the annular discharge platform or discharge pipe that slopes radially inward towards the stirring shaft, the material can simultaneously fall into the working range of the wide-area mixing unit. This effectively solves the problems of localized material accumulation and uneven concentration caused by traditional single-point feeding. Furthermore, the option of two discharge structures allows for adaptation to different viscosities of corrosion-resistant water-based epoxy paint materials, ensuring synergistic effects of feeding and mixing under various working conditions, further enhancing the stability of material mixing during continuous production.

[0020] In this invention, multiple wide blades, evenly spaced and distributed, can cover the upper area of ​​the mixing tank when rotating, and cover the feeding area of ​​the matching annular feeding channel in the radial direction of the mixing tank, ensuring that the falling material is included in the mixing range, realizing the comprehensive initial crushing of large filler pieces, and providing homogenized raw materials for subsequent mixing processes. At the same time, the evenly spaced distribution means that the wide blades generate a continuous radial mixing force when rotating, pushing the material near the tank wall to converge towards the axis, avoiding the material from stagnating and depositing on the upper side wall of the tank.

[0021] In this invention, the wide blades adopt vertical blades and are equipped with guide holes. The upright structure of the vertical blades enhances the impact contact strength with the materials, ensures the crushing effect of large filler pieces, and reduces local deposition. The guide holes through the vertical blades effectively reduce the fluid resistance during the stirring process.

[0022] In this invention, the vertical blades of the wide-bladed impeller have a structure in which the width of the blades increases from the root to the edge, expanding the stirring coverage area at the edge. The arc-shaped design of the upper or lower edge of the vertical blades adapts to the material rotation trajectory, reducing stirring turbulence and bubble entrainment. Furthermore, the long arc-shaped edge increases the contact area with the material, improving crushing and dispersing efficiency. In addition, the centrally symmetrical arrangement ensures that the stirring shaft is subjected to balanced forces, guaranteeing the stability of rotation.

[0023] In this invention, a propeller blade is used to surround the stirring shaft. When rotating, it can generate a strong axial thrust, which promotes the longitudinal circulation of materials. Combined with the radial stirring effect of the wide blade, a three-dimensional stirring mode of radial dispersion and axial circulation is formed, which ensures that all materials in the tank can participate in the stirring process and effectively avoids the problems of material stratification and inadequate local stirring during stirring.

[0024] In this invention, the toothed blades are located below the propeller blades. Their evenly spaced distribution can cover the lower area of ​​the mixing tank when rotating, performing final refining of the material circulated by the propeller blades, breaking up residual micro-filler agglomerates, and simultaneously re-entraining the initially deposited material into the flow field, preventing material deposition in the bottom area of ​​the tank.

[0025] In this invention, the toothed blade adopts a horizontal blade and is equipped with a toothed component at its bottom, which can scrape and cut the material in the dead corner area of ​​the tank bottom. The local strong shear force generated by the toothed component can effectively break up the deposited filler and completely remove the stirring blind area at the bottom of the tank.

[0026] In this invention, the guide plate, which is inclined radially inward along the tank body, works in conjunction with the rotating wide blades to guide the material near the tank wall to the axial mixing zone. This creates a synergistic effect of active mixing and passive flow guidance with the wide blades, eliminating the mixing dead angle on the upper side wall of the tank. At the same time, the protruding toothed strips on the inclined surface can create secondary cutting and disturbance to the flowing material, which can further break up the packing agglomerates. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0028] Figure 1 This is a schematic diagram of the overall appearance of a continuous stirring device for processing corrosion-resistant water-based epoxy paint in one embodiment of the present invention; Figure 2 for Figure 1 A half-sectional schematic diagram of the overall structure in the embodiment; Figure 3 for Figure 1 An assembly diagram of the graded stirring assembly and the annular feeding channel in the embodiment; Figure 4 for Figure 1 A half-sectional view of the mixing tank body in the embodiment; Figure 5 This is a half-sectional schematic diagram of the overall structure of the continuous stirring device for processing corrosion-resistant water-based epoxy paint in another embodiment of the present invention. In the diagram: 1. Mixing tank body; 2. Top cover; 3. Feed hopper; 4. Mixing shaft; 41. Control mechanism; 5. Annular pipe; 51. Annular discharge platform; 52. Discharge pipe; 6. Wide blade; 61. Vertical blade; 62. Guide hole; 7. Propeller blade; 8. Toothed blade; 81. Horizontal blade; 82. Toothed component; 9. Guide plate; 91. Raised toothed rack. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0030] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Example 1 like Figures 1-4As shown, this invention illustrates a continuous stirring device for processing corrosion-resistant water-based epoxy paint according to one embodiment of the present invention. The device includes a stirring tank body 1, a top cover 2, a stirring shaft 4, a staged stirring assembly, and an annular discharge channel. The stirring tank body 1 is a hollow cylindrical structure with an opening at the top and a support or bracket at the bottom for stability, along with a discharge port. The top cover 2 is detachably mounted on the top of the stirring tank body 1. A feed hopper 3 is located on one side of the top of the top cover 2; other feeding pipes or components can also be used as equivalent replacements. Specifically, the top cover 2 is mounted on the top of the stirring tank body 1, and the two can be detachably fixed by means of stud and nut engagement or pin hinge. The separate design of the top cover 2 and the stirring tank body 1 facilitates cleaning and maintenance of the entire device. The stirring shaft 4 is arranged along the axial direction of the mixing tank body 1. The upper end of the stirring shaft 4 is equipped with a control mechanism 41. The lower end of the stirring shaft 4 passes through the upper cover 2 and is rotatably connected to the bottom of the mixing tank body 1 in the inner cavity. Specifically, the control mechanism 41 can be a variable frequency motor, servo motor or other control motor. The control mechanism 41 is fixed on the top outer side of the upper cover 2. Its output end can be connected to the upper end of the stirring shaft 4 through a transmission structure such as a coupling, spline, or key connection. The lower end of the stirring shaft 4 passes through the center of the upper cover 2 and extends into the inner cavity of the mixing tank body 1. It forms a rotatable fit with the bottom of the mixing tank body 1 through a bearing seat, bushing or bearing assembly. The grading mixing assembly is mounted on the mixing shaft 4 and located in the inner cavity of the mixing tank 1. The grading mixing assembly is distributed along the axial direction of the mixing tank 1 with varying diameters to fully grade and mix the material from top to bottom, thereby achieving micro-refining and dispersion of the material. Specifically, the grading mixing assembly consists of multiple mixing units, which are arranged sequentially from top to bottom along the axial direction of the mixing tank 1. The effective mixing diameter of each set of mixing units varies in a gradient, thereby providing grading mixing. The annular feeding channel is located at the bottom of the upper cover 2 and is loosely fitted over the stirring shaft 4 above the grading and mixing assembly. That is, the annular feeding channel is located at the bottom of the upper cover 2 and above the grading and mixing assembly. The term "loosely fitted" means that the annular feeding channel and the stirring shaft 4 are not fixedly fitted. There is space between the inner wall of the annular feeding channel and the stirring shaft 4, which does not restrict the rotation of the stirring shaft 4. The annular feeding channel is connected to the feed hopper 3, and its lower end is radially inclined inward close to the stirring shaft 4. After the material enters the annular feeding channel through the feed hopper 3, the annular feeding channel can guide the material into the working range of the grading and mixing assembly to avoid material accumulation.

[0036] In some examples, the staged mixing assembly includes a wide-width mixing unit, an axial mixing unit, and a toothed mixing unit. The wide-width mixing unit is located below the annular feed channel and is used for initial dispersion of large filler particles. The axial mixing unit is positioned below the wide-width mixing unit and is used to promote longitudinal circulation of the material. The toothed mixing unit is positioned below the axial mixing unit and is used for fine mixing of the material. The three mixing units work together to further ensure the effectiveness of the staged mixing.

[0037] In some examples, such as Figure 2 and Figure 3 As shown, the annular feeding channel includes an annular pipe 5 and feeding pipes 52. The annular pipe 5 is located at the bottom of the upper cover 2 and loosely fitted above the stirring shaft 4 of the wide-width stirring unit. The feed hopper 3 penetrates the upper cover 2 and communicates with the annular pipe 5. At least three feeding pipes 52 are evenly distributed circumferentially at the lower end of the annular pipe 5. Each feeding pipe 52 communicates with the inner cavity of the annular pipe 5, and the lower end of each feeding pipe 52 is radially inclined inwards towards the stirring shaft 4 to guide the material into the working range of the wide-width stirring unit. Through the cooperation of the feed hopper 3 and the annular pipe 5, the material flows circumferentially within the annular pipe 5. With the feeding pipes 52 radially inclined inwards towards the stirring shaft 4, the material can simultaneously fall into the working range of the wide-width stirring unit. This annular feeding channel in this example is suitable for low-viscosity, corrosion-resistant water-based epoxy paint materials.

[0038] In some examples, the wide-width mixing unit includes wide-width blades 6, which are located radially in the upper inner cavity of the mixing tank 1. At least two wide-width blades 6 are provided, and each wide-width blade 6 is evenly spaced along the inner circumference of the mixing tank 1. The upper part of the mixing tank 1 is the initial residence area after the material is put in, which is prone to problems such as particle agglomeration and floating of light components. When the multiple wide-width blades 6 are evenly spaced and rotate, they can cover the upper area of ​​the mixing tank 1 and cover the feeding area of ​​the matching annular feeding channel in the radial direction of the mixing tank 1, ensuring that the falling material is included in the mixing range and achieving comprehensive preliminary crushing of large pieces of filler.

[0039] Furthermore, the wide blade 6 includes a vertical blade 61 and guide holes 62. One end of the vertical blade 61 is mounted on the stirring shaft 4 via a connector, and the other end of the vertical blade 61 extends close to the upper side wall of the mixing tank 1. "Close to" means that the other end of the vertical blade 61 extends to the vicinity of the upper side wall of the mixing tank 1, leaving a certain safety distance. The connector can be a clamp, key, or set screw. The upright structure of the vertical blade 61 enhances the impact contact strength with the material. The vertical blade 61 has multiple guide holes 62 extending through it along its thickness direction, which can effectively reduce the fluid resistance during the stirring process.

[0040] Preferably, the width of the vertical blade 61 of the wide blade 6 gradually increases from one end near the stirring shaft 4 to the other end, expanding the stirring coverage of the edge. The upper or lower edge of the vertical blade 61 is arc-shaped to adapt to the material rotation trajectory, reduce stirring turbulence and bubble entrainment, and the arc-shaped side edge is longer than the other side edge, improving the crushing and dispersion efficiency. That is, when the upper side edge is arc-shaped, the lower side edge is straight and the upper side edge is longer than the lower side edge, and vice versa. In other words, the vertical blade 61 of the wide blade 6 has an airfoil structure. In this preferred example, at least two wide blades 6 are arranged radially and symmetrically in the tank body 1, so that the stirring shaft 4 is subjected to balanced force and ensures the stability of rotation.

[0041] In some examples, the axial stirring unit includes a propeller blade 7 located below the wide blade 6 and surrounding the stirring shaft 4. The propeller blade 7 and the stirring shaft 4 are typically connected by a key, interference fit, or expansion sleeve. The propeller blade 7 can receive the material dispersed by the wide blade 6 in the upper region of the mixing tank 1, guiding the material circulation through axial thrust. The propeller blade 7 has at least three blades; preferably, the blades of the propeller blade 7 are inclined at an angle of 15° to 30° to the stirring shaft 4. When the propeller blade 7 rotates, it generates a strong axial thrust, propelling the material longitudinally. Combined with the radial stirring action of the wide blade 6, this forms a three-dimensional stirring mode of radial dispersion and axial circulation.

[0042] In some examples, the toothed stirring unit includes toothed blades 8 located below the propeller blades 7 and radially within the lower inner cavity of the mixing tank 1. At least two toothed blades 8 are provided, and each toothed blade 8 is evenly spaced along the inner circumference of the mixing tank 1. When the multiple toothed blades 8 rotate, their evenly spaced distribution can cover the lower area of ​​the mixing tank 1, performing final refining treatment on the material circulated by the propeller blades 7, breaking up residual micro-filler agglomerates, and simultaneously re-entraining the initially deposited material into the flow field, preventing material deposition in the bottom area of ​​the tank.

[0043] Furthermore, the toothed blade 8 includes a horizontal blade 81. One end of the horizontal blade 81 is mounted on the stirring shaft 4 via a connector, and the other end extends close to the lower side wall of the mixing tank 1. "Close to" means that the other end of the horizontal blade 81 extends to the vicinity of the lower side wall of the mixing tank 1, leaving a certain safety distance. The connector can be a clamp, key, or set screw. The bottom of the horizontal blade 81 is evenly and densely covered with multiple toothed components 82. Preferably, the toothed components 82 can be triangular teeth, rectangular teeth, trapezoidal teeth, or arc teeth, etc., to scrape and cut the material in the dead corner area of ​​the tank bottom. The local strong shear force generated by the toothed components 82 can effectively break up the deposited material.

[0044] In some examples, such as Figure 2 and Figure 4 As shown, the mixing tank body 1 has multiple guide plates 9 evenly spaced circumferentially on its inner sidewall corresponding to the wide blade 6. The guide plates 9 are inclined inward along the radial direction of the mixing tank body 1 and close to the wide blade 6. Multiple downwardly inclined protruding toothed racks 91 are evenly distributed from top to bottom on the inclined surface of the guide plates 9. The guide plates 9, which are inclined inward along the radial direction of the mixing tank body 1, cooperate with the rotating wide blade 6 to guide the material near the tank wall to the axial mixing zone, forming a synergistic effect of active mixing and passive flow guidance with the wide blade 6.

[0045] Working principle: The corrosion-resistant water-based epoxy paint material enters the annular discharge channel through the feed hopper 3 of the top cover 2. After the annular pipe 5 evenly distributes the material around the circumference, the material is guided to the working area of ​​the graded mixing component through the radially inward-sloping discharge pipes 52. The control mechanism 41 drives the mixing shaft 4 to drive the graded mixing component to operate synchronously, realizing graded mixing from top to bottom. First, the wide blades 6 of the wide mixing unit rotate at high speed, covering the upper area of ​​the mixing tank 1. At the same time, the guide plate 9 on the upper part of the mixing tank 1 cooperates with the wide blades 6 to guide the material on the tank wall to the axis. In the mixing zone, the wide blades 6, through the strong impact of their vertical blades 61 and the drag reduction and efficiency enhancement of the guide holes 62, initially break up large pieces of filler and agglomerated particles. Then, the propeller blades 7 of the axial mixing unit generate strong axial thrust, driving the material to circulate longitudinally. Finally, the toothed blades 8 of the toothed mixing unit, through their horizontal blades 81 and bottom toothed components 82, scrape the material deposited at the bottom of the tank and generate local strong shear force, breaking up residual small agglomerates and completing the final refinement of the material. When cleaning and maintenance are required, the top cover 2 can be opened to clean and repair each component.

[0046] Example 2 (used less frequently) like Figure 5 As shown, it illustrates a continuous stirring device for processing corrosion-resistant water-based epoxy paint in another embodiment of the present invention. The technical solution is largely the same as that of Embodiment 1, so only the differences are described.

[0047] The annular feeding channel includes an annular pipe 5 and an annular feeding platform 51. The annular pipe 5 is located at the bottom of the upper cover 2 and loosely fitted above the stirring shaft 4 of the wide-width stirring unit. The feed hopper 3 passes through the upper cover 2 and communicates with the annular pipe 5. The annular feeding platform 51 is located at the lower end of the annular pipe 5, adapted to the annular pipe 5 and communicating with its inner cavity. The lower end of the annular feeding platform 51 is radially inward along the annular pipe 5, close to the stirring shaft 4, to guide the material within the annular pipe 5 into the working range of the wide-width stirring unit. Through the cooperation of the feed hopper 3 and the annular pipe 5, the material achieves circumferential flow within the annular pipe 5. With the annular feeding platform 51 radially inward along the annular pipe 5, close to the stirring shaft 4, the material can simultaneously fall into the working range of the wide-width stirring unit. In this example, the annular feeding channel is suitable for high-viscosity, corrosion-resistant water-based epoxy paint materials.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A continuous stirring device for processing corrosion-resistant water-based epoxy paint, characterized in that, include: The mixing tank body (1) has an opening at the top; The top cover (2) is detachably mounted on the top of the mixing tank body (1) and a feed hopper (3) is provided thereon. A stirring shaft (4) is arranged along the axial direction of the stirring tank body (1). A control mechanism (41) is provided at the upper end of the stirring shaft (4), and its lower end passes through the upper cover (2) and is rotatably connected to the bottom of the stirring tank body (1) in the inner cavity. A graded stirring assembly is sleeved on the stirring shaft (4) and located in the inner cavity of the mixing tank (1). The graded stirring assembly is distributed along the axial direction of the mixing tank (1) to grade and stir the material from top to bottom. An annular feeding channel is provided at the bottom of the upper cover (2) and loosely fitted above the stirring shaft (4) of the grading and stirring assembly. The annular feeding channel is connected to the feed hopper (3), and its lower end is radially inclined inward close to the stirring shaft (4) to guide the material into the working range of the grading and stirring assembly.

2. The continuous stirring device for processing corrosion-resistant water-based epoxy paint according to claim 1, characterized in that, The graded mixing assembly includes: a wide-width mixing unit located below the annular feeding channel to initially disperse large pieces of filler; an axial mixing unit below the wide-width mixing unit to promote longitudinal circulation of materials; and a toothed mixing unit below the axial mixing unit to refine and mix the materials.

3. The continuous stirring device for processing corrosion-resistant water-based epoxy paint according to claim 2, characterized in that, The annular feeding channel includes: an annular pipe (5), a stirring shaft (4) located at the bottom of the upper cover (2) and loosely fitted above the wide-width stirring unit, a feeding hopper (3) passing through the upper cover (2) and communicating with the annular pipe (5), an annular feeding platform (51) or at least three feeding pipes (52) evenly distributed around the lower end of the annular pipe (5), the annular feeding platform (51) or the feeding pipes (52) communicating with the inner cavity of the annular pipe (5), and its lower end inclined inward along the radial direction of the annular pipe (5) close to the stirring shaft (4) to guide the material into the working range of the wide-width stirring unit.

4. The continuous stirring device for processing corrosion-resistant water-based epoxy paint according to claim 3, characterized in that, The wide-width stirring unit includes: wide-width blades (6), which are located radially in the upper inner cavity of the stirring tank (1). At least two wide-width blades (6) are provided and are evenly spaced along the inner circumference of the stirring tank (1).

5. A continuous stirring device for processing corrosion-resistant water-based epoxy paint according to claim 4, characterized in that, The wide blade (6) includes a vertical blade (61), one end of which is mounted on the stirring shaft (4) via a connector, and the other end of which extends close to the upper side wall of the stirring tank (1). The vertical blade (61) has multiple guide holes (62) extending through it along its thickness direction.

6. A continuous stirring device for processing corrosion-resistant water-based epoxy paint according to claim 5, characterized in that, The width of the vertical blade (61) of the wide blade (6) gradually increases from one end near the stirring shaft (4) to the other end. Its upper or lower edge is arc-shaped, and one side edge is longer than the other side edge. At least two wide blades (6) are arranged symmetrically in the radial direction of the mixing tank body (1).

7. A continuous stirring device for processing corrosion-resistant water-based epoxy paint according to any one of claims 4-6, characterized in that, The axial stirring unit includes a propeller blade (7) located below the wide blade (6) and surrounding the stirring shaft (4), wherein the propeller blade (7) has at least three blades.

8. A continuous stirring device for processing corrosion-resistant water-based epoxy paint according to claim 7, characterized in that, The toothed stirring unit includes: toothed blades (8), located below the propeller blades (7) and radially positioned in the lower inner cavity of the stirring tank body (1). At least two toothed blades (8) are provided and are evenly spaced along the inner circumference of the stirring tank body (1).

9. A continuous stirring device for processing corrosion-resistant water-based epoxy paint according to claim 8, characterized in that, The toothed blade (8) includes: a horizontal blade (81), one end of which is mounted on the stirring shaft (4) via a connector, and the other end of which extends close to the lower side wall of the stirring tank (1). The bottom of the horizontal blade (81) is evenly covered with a plurality of toothed components (82).

10. A continuous stirring apparatus for processing corrosion-resistant water-based epoxy paint according to any one of claims 4-6, characterized in that, The mixing tank body (1) has a plurality of guide plates (9) evenly spaced around its inner sidewall corresponding to the wide blade (6), and the guide plates (9) are inclined inward along the radial direction of the mixing tank body (1) and close to the wide blade (6). The inclined surface of the guide plates (9) has a plurality of downwardly inclined protruding toothed racks (91) evenly distributed from top to bottom.

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