Stirring kettle for paint production
By designing a multi-layer structure mixing leaf group and baffle group in paint production, combined with a solid powder feed pipe designed with an inclined port, the problems of poor stirring effect and powder agglomeration during the paint adjustment process are solved, and better mixing effect and discharge uniformity are achieved.
Patent Information
- Application Number
- CN202421915402.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-08
AI Technical Summary
In the existing paint production, the mixing effect is poor during the paint mixing process, resulting in uneven mixing of materials, especially high-viscosity paint, which makes it difficult to achieve the ideal mixing and mixing effect, and the solid powder is prone to agglomeration, affecting the coating effect.
A stirring tank for paint production was designed, using a multi-layer structure of stirring leaf group and baffle group. By setting the interval between stirring leaf and baffle of different lengths, materials of different diameters are formed to enhance the radial mixing effect, and a solid powder feed tube designed through the oblique port is avoided from agglomeration of powder.
The mixing effect and discharge uniformity during the paint mixing process are improved, and the mixture still contains patellar after discharge is avoided, which significantly improves the coating effect.
Smart Images
Figure CN222918527U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to paint production, and more specifically, to a stirring kettle for paint production. Background Art
[0002] Paint is a chemical mixture coating that can firmly cover the surface of an object, serving for protection, decoration, marking and other special purposes. Most paints are made from raw materials such as iron oxide or resin. In the early days, most paints were mainly made from vegetable oils, so they were called "paints", such as the healthy, environmentally friendly and original tung oil. Whether it is a traditional coating product made from natural substances or a modern developing coating product made from synthetic chemical products, they all belong to organic chemical polymer materials, and the formed coating film belongs to the type of polymer compounds. According to the modern general classification of chemical products, paint belongs to fine chemical products. Paint is composed of resin, solvent, pigment, additives, etc., and the resin used plays the most crucial role. Essentially, the production of paint is a process of stirring and crushing pigment solid particles by external force and dispersing them into the resin solution to form a uniform and fine suspension dispersion.
[0003] The existing paint production is divided into the following steps: pre-dispersion, grinding dispersion, paint mixing, purification and packaging. Among them, paint mixing refers to the process of stabilizing the ground paint slurry during the production process of coatings (paints), including adjusting color, solid powder, viscosity, supplementing materials, etc., so as to obtain the required liquid coating product.
[0004] The stirring devices usually used in paint mixing devices are generally common paddle stirrers, turbine stirrers or anchor stirrers, etc. Among them, due to the simple structure of the paddle stirrer and the small power required for stirring, it is a relatively commonly used one. However, due to the poor material mixing effect of the ordinary paddle stirrer, the stirring effect is poor, affecting the material mixing effect. Especially for paints with generally high viscosity, when used for paint preparation, the ideal mixing effect is often not achieved.
[0005] During paint mixing, a diluent (to adjust viscosity) usually needs to be added to the kettle already filled with the ground paint slurry. However, in addition to adding the diluent, sometimes solid powder also needs to be added, and the powder is prone to caking to form a paste. Due to the low rotation speed during paint mixing, the mixed material still contains paste after discharging, ultimately affecting the painting effect. Content of the Utility Model
[0006] Aiming at the above problems, the utility model provides a stirring kettle for paint production, which has a better mixing effect and better discharging uniformity.
[0007] A stirring kettle for paint production, used for paint mixing, includes a kettle cover, a kettle body, and a kettle bottom. The kettle cover, kettle body, and kettle bottom enclose a working chamber. A first feed pipe is connected to the kettle cover, and a discharge pipe is connected to the kettle bottom. A second feed pipe is also connected to the kettle cover. The first feed pipe is a liquid feed pipe, and the second feed pipe is a solid powder feed pipe. The stirring kettle further includes a stirring mechanism, which includes a main shaft and a stirring blade group installed on the main shaft. The stirring blade group includes a first group of stirring blades and a second group of stirring blades. The first group of stirring blades includes more than two layers of first stirring blades, and the second group of stirring blades includes more than two layers of second stirring blades. The first stirring blades and the second stirring blades are installed at intervals. The length of the first stirring blade < the length of the second stirring blade. The stirring blade group is located in the working chamber. One end of the main shaft passes out of the kettle cover and is connected to a power supply mechanism. A baffle group is provided on the inner wall of the kettle body.
[0008] Optionally, each layer of the first stirring blades includes three first blades, which are distributed circumferentially along the main shaft. Each layer of the second stirring blades includes three second blades, which are distributed circumferentially along the main shaft.
[0009] Optionally, each first blade extends upward from the main shaft towards the inner wall of the kettle body, and each second blade extends downward from the main shaft towards the inner wall of the kettle body.
[0010] Optionally, the baffle group includes more than two layers of first baffle groups and more than two layers of second baffle groups. The first baffle groups and the second baffle groups are arranged at intervals from top to bottom. The first baffle group includes several first upper baffles and several first lower baffles. The second baffle group includes several second upper baffles and several second lower baffles. The length of the first upper baffle < the length of the first lower baffle, the length of the second upper baffle > the length of the second lower baffle. The first upper baffle extends upward, the first lower baffle extends downward, the second upper baffle extends upward, and the second lower baffle extends downward.
[0011] Optionally, through holes 19 are distributed on a section of the second feed pipe located in the working liquid. The port of the outlet end of the second feed pipe is an inclined port, and the inclined port is close to the stirring blade group. The diameter of the solid powder < the diameter of the through holes 19 < the diameter of the solid lumps.
[0012] Optionally, a sleeve is provided outside the kettle body. A sandwich space with upper and lower seals is formed between the outer wall of the kettle body and the sleeve. A cooling coil is installed in the sandwich space, and the cooling coil is provided with a cooling water inlet and a hot water outlet.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] The present utility model has a better mixing effect and better discharge uniformity, avoiding the situation that the mixed material still contains slurry after discharge. Description of the Drawings
[0015] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0016] Figure 1 It is a schematic diagram of the overall structure of the stirring kettle for paint production of the present utility model;
[0017] Figure 2 It is a schematic diagram of the part of the second feed pipe of the present utility model located inside the kettle;
[0018] Explanation of reference numerals: 1. kettle cover, 2. kettle body, 3. kettle bottom, 4. first feed pipe, 5. second feed pipe, 6. discharge pipe, 7. stirring mechanism, 8. main shaft, 9. stirring blade group, 10. first stirring blade, 11. second stirring blade, 12. baffle group, 13. first baffle group, 14. second baffle group, 15. first upper baffle, 16. first lower baffle, 17. second upper baffle, 18. second lower baffle, 20. interlayer space, 21. cooling coil. Detailed implementation manners
[0019] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically and precisely defined.
[0021] The terms "first", "second", "third", "fourth", etc. (if any) in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of this application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that comprises a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0022] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the drawings in the embodiments of this application. Obviously, the described embodiments are some but not all of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts fall within the scope of protection of this application.
[0023] The technical solutions of the present utility model will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
[0024] Please refer to Figure 1 - Figure 2 , Figure 1 , which is a schematic diagram of the overall structure of the stirring kettle for paint production provided by the present utility model. Figure 2 , which is a schematic diagram of the part of the second feed pipe of the present utility model located inside the kettle.
[0025] A stirring kettle for paint production, used for paint mixing, includes a kettle cover 1, a kettle body 2 and a kettle bottom 3. The kettle body 2 and the kettle bottom 3 are integrally formed. The kettle body 2 and the kettle cover 1 are detachably connected into one body through a connecting flange. The kettle cover 1, the kettle body 2 and the kettle bottom 3 enclose a working chamber. A first feed pipe 4 and a second feed pipe 5 are respectively connected to the kettle cover 1. The kettle bottom 3 is connected with a discharge pipe 6. The first feed pipe 4 is a liquid feed pipe, and the second feed pipe 5 is a solid powder feed pipe. The stirring kettle further includes a stirring mechanism 7. The stirring mechanism 7 includes a main shaft 8 and a stirring blade group 9 installed on the main shaft 8. The stirring blade group 9 includes a first group of stirring blade groups and a second group of stirring blade groups. The first group of stirring blade groups includes more than 2 layers of first stirring blades 10, and the second group of stirring blade groups includes more than 2 layers of second stirring blades 11. The first stirring blades 10 and the second stirring blades 11 are installed at intervals. The length of the first stirring blade 10 < the length of the second stirring blade 11. The stirring blade group 9 is located in the working chamber. One end of the main shaft 8 passes through the kettle cover 1 and is connected to a power supply mechanism. A baffle group 12 is arranged on the inner wall of the kettle body 2.
[0026] By setting the first feed pipe 4 and the second feed pipe 5, the positions of liquid feeding and solid feeding are distinguished. The first stirring blades 10 and the second stirring blades 11 with different lengths arranged at intervals form material swirls with different diameters in the working chamber, strengthening the effect in the radial direction and improving the homogenization effect. The setting of the baffle group 12 intensifies the material swirl, equivalent to adding a flow channel in the fluid and further intensifying the mixing effect.
[0027] In one or more specific embodiments of the present invention, each layer of the first stirring blade 10 includes 3 first blades, which are circumferentially distributed along the main shaft 8. Each layer of the second stirring blade 11 includes 3 second blades, which are circumferentially distributed along the main shaft 8.
[0028] In one or more specific embodiments of the present invention, in order to obtain a better homogenization effect, the first blade extends upward from the main shaft 8 towards the inner wall of the kettle body 2, and the second blade extends downward from the main shaft 8 towards the inner wall of the kettle body 2. Such a setting makes the flow channel between the two gradually extend or contract, which is more conducive to fluid homogenization.
[0029] In one or more specific embodiments of the present utility model, in order to achieve a better uniform effect, the baffle group 12 includes more than 2 layers of the first baffle group 13 and more than 2 layers of the second baffle group 14. The first baffle group 13 and the second baffle group 14 are arranged at intervals from top to bottom. The first baffle group 13 includes a plurality of first upper baffles 15 and a plurality of first lower baffles 16. The second baffle group 14 includes a plurality of second upper baffles 17 and a plurality of second lower baffles 18. The length of the first upper baffle 15 < the first lower baffle 16, the length of the second upper baffle 17 > the second lower baffle 18. The first upper baffle 15 extends upward, the first lower baffle 16 extends downward, the second upper baffle 17 extends upward, and the second lower baffle 18 extends downward. Through the arrangement of the first baffle group 13 and the second baffle group 14, the flow path is changed, the upward and downward baffles are increased, and the uniform effect is further improved.
[0030] In one or more specific embodiments of the present utility model, a plurality of first upper baffles 15 and a plurality of first lower baffles 16 are both arranged circumferentially along the inner wall of the kettle body 2. A plurality of second upper baffles 17 and a plurality of second lower baffles 18 are both arranged circumferentially along the inner wall of the kettle body. The first upper baffle 15, the first lower baffle 16, the second upper baffle 17, and the second lower baffle 18 can be welded to the inner wall of the kettle body 2.
[0031] The length of the first upper baffle 15 = the second lower baffle 18, the first lower baffle 16 = the length of the second upper baffle 17, and the minimum distance between the first lower baffle 16 and the second stirring blade 11 > 0, to prevent the stirring blade from hitting the first lower baffle 16 or the second upper baffle 17.
[0032] In one or more specific embodiments of the present utility model, through holes 19 are distributed on a section of the second feed pipe 5 located in the working fluid. The port at the outlet end of the second feed pipe 5 is an inclined port, and the inclined port is adjacent to the stirring blade group 9. The diameter of the solid powder < the diameter of the through hole 19 < the diameter of the solid agglomerate. After such a setting, the unagglomerated pigment enters the working fluid through the through holes 19, and the solid agglomerates come out from the inclined port. The solid agglomerates coming out from the inclined port are dispersed by the stirring blade group 9 and then enter the working fluid, avoiding the presence of slurry in the mixed material after discharging.
[0033] In one or more specific embodiments of the present utility model, in order to remove the heat generated by stirring in time, a sleeve is arranged outside the kettle body 2. A sandwich space 20 with upper and lower seals is formed between the outer wall of the kettle body 2 and the sleeve (the sleeve has an upper top and a lower top, and the upper top and the lower top are respectively connected to the sleeve body and the outer wall of the kettle body 2). A cooling coil 21 is installed in the sandwich space 20. The cooling coil 21 is provided with a cooling water inlet and a hot water outlet (the cooling water inlet end and the hot water outlet end both extend outside the sleeve body). By providing the sandwich space 20 and the cooling coil 21, the heat generated during the working process is removed in time to maintain the working temperature.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A stirring kettle for paint production, used for paint mixing, comprising a kettle cover (1), a kettle body (2) and a kettle bottom (3), wherein the kettle cover (1), the kettle body (2) and the kettle bottom (3) form a working chamber, the kettle cover (1) is connected to a first feed pipe (4), and the kettle bottom (3) is connected to a discharge pipe (6), characterized in that: The kettle cover (1) is also connected to a second feed pipe (5), the first feed pipe (4) is a liquid feed pipe, and the second feed pipe (5) is a solid powder feed pipe. The stirring kettle also includes a stirring mechanism (7), the stirring mechanism (7) includes a main shaft (8) and a stirring blade group (9) mounted on the main shaft (8), the stirring blade group (9) includes a first stirring blade group and a second stirring blade group, the first stirring blade group includes more than two layers of first stirring blades (10), the second stirring blade group includes more than two layers of second stirring blades (11), the first stirring blades (10) and the second stirring blades (11) are installed at intervals, the length of the first stirring blades (10) is less than the length of the second stirring blades (11), the stirring blade group (9) is located in the working chamber, one end of the main shaft (8) passes through the outside of the kettle cover (1) and is connected to the power supply mechanism, and a baffle group (12) is arranged on the inner wall of the kettle body (2).
2. The stirred kettle for paint production according to claim 1, characterized in that: The kettle body (2) and the kettle bottom (3) are integrally formed, and the kettle body (2) and the kettle cover (1) are detachably connected as one body via a connecting flange.
3. The stirred kettle for paint production according to claim 1, characterized in that: The first stirring blade (10) of each layer comprises three first blades distributed circumferentially along the main axis (8), and the second stirring blade (11) of each layer comprises three second blades distributed circumferentially along the main axis (8).
4. The stirred kettle for paint production according to claim 3, characterized in that: Each first blade extends upwards along the main axis (8) towards the inner wall of the kettle body (2), and each second blade extends downwards along the main axis (8) towards the inner wall of the kettle body (2).
5. The stirred kettle for paint production according to any one of claims 1 to 4, characterized in that: The baffle plate group (12) comprises more than two layers of first baffle plate groups (13) and more than two layers of second baffle plate groups (14); the first baffle plate group (13) and the second baffle plate group (14) are arranged at intervals from top to bottom; the first baffle plate group (13) comprises a plurality of first upper baffle plates (15) and a plurality of first lower baffle plates (16); the second baffle plate group (14) comprises a plurality of second upper baffle plates (17) and a plurality of second lower baffle plates (18); the length of the first upper baffle plate (15) is less than the length of the first lower baffle plate (16); the length of the second upper baffle plate (17) is greater than the length of the second lower baffle plate (18); the first upper baffle plate (15) extends upward, the first lower baffle plate (16) extends downward, the second upper baffle plate (17) extends upward, and the second lower baffle plate (18) extends downward.
6. The stirred kettle for paint production according to any one of claims 1 to 4, characterized in that: A through hole (19) is distributed on a section of the second feed pipe (5) located in the working liquid. The outlet of the second feed pipe (5) is an oblique opening, which is adjacent to the stirring blade group (9). The diameter of the solid powder is less than the diameter of the through hole (19) and less than the diameter of the solid agglomerates.
7. The stirred kettle for paint production according to any one of claims 1 to 4, characterized in that: A sleeve is arranged outside the kettle body (2), and an upper and lower sealed interlayer space (20) is formed between the outer wall of the kettle body (2) and the sleeve. A cooling coil (21) is installed in the interlayer space (20), and the cooling coil (21) is provided with a cooling water inlet and a hot water outlet.