A grinding device applied to production of self-crosslinking reinforced water-based single-component epoxy dispersion
The grinding device, which combines a horizontal box-type internal and external mesh structure with abrasive rollers, solves the problems of poor stability and difficult maintenance of vertical grinding devices, and achieves efficient and refined grinding and improved equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU BOGAO SYNTHETIC MATERIAL CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-09
AI Technical Summary
Existing vertical grinding equipment has a high center of gravity, resulting in poor stability and high maintenance costs. In addition, two-stage grinding occupies a lot of space and is difficult to inspect and clean.
It adopts a horizontal box design, an inner and outer mesh structure and an abrasive roller combination, and achieves multi-stage grinding by the difference in the aperture of the inner and outer mesh. It is equipped with an auger shaft and a spiral propeller, and combined with an elastic sleeve and a positioning tube to improve stability and abrasive effect.
It achieves efficient and refined grinding, reduces equipment space occupation, simplifies maintenance process, and improves equipment stability and abrasive fineness.
Smart Images
Figure CN224332325U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coatings, and more specifically, to a grinding device used in the production of self-crosslinking reinforced waterborne single-component epoxy dispersions. Background Technology
[0002] Self-crosslinking reinforced waterborne single-component epoxy dispersion is a waterborne epoxy coating system that achieves internal crosslinking through molecular structure design. Its core advantages lie in single-component packaging, room temperature self-curing, and excellent comprehensive performance, and it is widely used in metal corrosion protection, floor coatings, and other fields.
[0003] In the production process of self-crosslinking reinforced waterborne single-component epoxy dispersions, it is usually necessary to grind the difficult-to-disperse solid components. Currently, vertical grinding devices such as those disclosed in CN2095041U are commonly used. In order to make the grinding more thorough, a two-stage process of coarse grinding followed by fine grinding is adopted, and both coarse grinding and fine grinding are carried out using vertical grinding devices.
[0004] Existing grinding devices, such as CN2095041U, have the following shortcomings:
[0005] The high center of gravity leads to poor stability and requires complex anti-tipping design. The difficulty of inspection and drainage cleaning leads to high maintenance costs, and the two-stage grinding occupies more space. Utility Model Content
[0006] To address the aforementioned problems, this invention provides a grinding apparatus for the production of self-crosslinking reinforced waterborne single-component epoxy dispersions. This grinding apparatus aims to improve at least one of the problems mentioned in the background art.
[0007] A grinding apparatus for producing self-crosslinking reinforced waterborne single-component epoxy dispersions includes a horizontal housing and a main shaft. A discharge pipe is located at the bottom of the horizontal housing, forming an outer cavity. The main shaft is horizontally positioned at the center of the outer cavity, with its left end extending out of the horizontal housing. An outer mesh is installed inside the outer cavity, forming a middle cavity. An inner mesh is installed inside the middle cavity, forming an inner cavity. The main shaft and auger shaft are located within the inner cavity. The right end of the inner mesh is connected to the right wall of the horizontal housing, and the left end of the outer mesh is mounted on the main shaft. An abrasive roller is installed on the portion of the main shaft located within the inner cavity. A receiving hole is provided at the left end of the inner mesh, allowing the main shaft to pass through. Grinding balls are placed in the space between the inner and outer meshes, with the aperture of the outer mesh being smaller than that of the inner mesh.
[0008] Optionally, it also includes an auger shaft, the left end of which passes through the horizontal housing, and a feeding hopper is installed above the auger shaft.
[0009] Optionally, the auger shaft is located above the main shaft.
[0010] Optionally, a propeller is installed on a section of the main shaft near the right wall of the horizontal housing.
[0011] Optionally, the inner network is provided with a plurality of baffles extending toward the abrasive roller.
[0012] Optionally, the abrasive roller is provided with helical grooves at equal intervals.
[0013] Optionally, a first positioning tube is welded to the right wall of the horizontal housing, and the right end of the spindle is located inside the first positioning tube.
[0014] Optionally, a second positioning tube and a third positioning tube are welded to the right wall of the horizontal box, and the right end of the outer mesh is located in the gap formed between the second positioning tube and the third positioning tube.
[0015] Optionally, a gap is provided between the wall of the receiving hole and the outer wall of the spindle, and an elastic sleeve is embedded in the gap.
[0016] Optionally, the aperture of the outer mesh is <5μm. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of a partial unfolded internal network of this utility model;
[0020] Figure 3 This is a schematic diagram of a partial unfolded external network of this utility model;
[0021] Figure 4 This is a schematic diagram showing the relationship between the first positioning tube and the main shaft of this utility model;
[0022] Figure 5 This is a schematic diagram showing the relationship between the second positioning tube, the outer mesh, and the third positioning tube of this utility model.
[0023] Explanation of reference numerals in the attached drawings: 1. Horizontal housing; 2. Outer cavity; 3. Discharge pipe; 4. Main shaft; 5. Screw shaft; 6. Outer mesh; 7. Middle cavity; 8. Inner mesh; 9. Inner cavity; 10. Abrasive roller; 11. Grinding ball; 12. Feed hopper; 13. Screw propeller; 14. Baffle; 15. Spiral groove; 16. First positioning tube; 17. Second positioning tube; 18. Third positioning tube. Detailed Implementation
[0024] In the description of this utility model, 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 a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise precisely specified.
[0026] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0028] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.
[0029] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a schematic diagram of a partial unfolded internal network of this utility model. Figure 3 This is a schematic diagram of a partial unfolded external network of this utility model. Figure 4 This is a schematic diagram showing the relationship between the first positioning tube and the main shaft of this utility model. Figure 5 This is a schematic diagram showing the relationship between the second positioning tube, the outer mesh, and the third positioning tube of this utility model.
[0030] A grinding apparatus for producing self-crosslinking reinforced waterborne single-component epoxy dispersions includes a horizontal housing 1 and a main shaft 4. A discharge pipe 3 is provided at the bottom of the horizontal housing 1, which forms an outer cavity 2. The main shaft 4 is horizontally located at the center of the outer cavity 2, with its left end extending out of the horizontal housing 1. An outer mesh 6 is provided inside the outer cavity 2, forming a middle cavity 7. An inner mesh 8 is provided inside the middle cavity 7, forming an inner cavity 9. The main shaft 4 and an auger shaft 5 are located inside the inner cavity 9. The right end of the inner mesh 8 is connected to the right wall of the horizontal housing 1. The left end of the outer mesh 6 is mounted on the main shaft 4. An abrasive roller 10 is installed on the portion of the main shaft 4 located inside the inner cavity 9. An accommodating hole is provided at the left end of the inner mesh 8, allowing the main shaft 4 to pass through. Grinding balls 11 are provided in the space between the inner mesh 8 and the outer mesh 6. The aperture of the outer mesh 6 is smaller than the aperture of the inner mesh 8.
[0031] By setting up an inner mesh 8 and an outer mesh 6, as well as an abrasive roller 10 and a grinding ball 11, during operation, the rotation of the main shaft 4 drives the abrasive roller 10 and the outer mesh 6 to rotate. The difficult-to-disperse solid components are first refined by the grinding of the abrasive roller 10. After grinding, the solid components that meet the aperture requirements of the inner mesh 8 enter the space between the inner mesh 8 and the outer mesh 6 through the mesh of the inner mesh 8. They are further refined by the grinding of the grinding ball 11. The solid components that meet the aperture requirements of the outer mesh 6 enter the gap between the outer mesh 6 and the horizontal box 1 through the mesh of the outer mesh 6. Under the action of gravity, they gather in the bottom space of the horizontal box 1 and are discharged from the discharge pipe 3.
[0032] In one or more specific embodiments of this utility model, in order to facilitate feeding, a screw conveyor shaft 5 is also included. The left end of the screw conveyor shaft 5 is inserted into the horizontal box 1. A feeding hopper 12 is installed above the screw conveyor shaft 5. The material is conveyed from the feeding hopper 12 into the inner cavity 9 for grinding via the screw conveyor shaft 5.
[0033] In one or more specific embodiments of this utility model, the auger shaft 5 is located above the main shaft 4 for efficient feeding.
[0034] In one or more specific embodiments of this utility model, in order to push the difficult-to-disperse solid components to the left, a screw propeller 13 is installed on a section of the main shaft 4 near the right wall of the horizontal housing 1.
[0035] In one or more specific embodiments of this utility model, in order to improve the abrasive effect, the inner mesh 8 is provided with a plurality of baffles 14 extending toward the abrasive roller 10.
[0036] In one or more specific embodiments of this utility model, in order to improve the abrasive effect, the abrasive roller 10 is provided with spiral grooves 15 at equal intervals.
[0037] In one or more specific embodiments of this utility model, in order to prevent the spindle 4 from shifting, a first positioning tube 16 is welded on the right wall of the horizontal housing 1, and the right end of the spindle 4 is located inside the first positioning tube 16.
[0038] In one or more specific embodiments of this utility model, in order to prevent the outer net 6 from shifting, a second positioning tube 17 and a third positioning tube 18 are welded on the right wall of the horizontal box 1, and the right end of the outer net 6 is located in the gap formed between the second positioning tube 17 and the third positioning tube 18.
[0039] In one or more specific embodiments of this utility model, a gap is provided between the wall of the receiving hole and the outer wall of the main shaft 4, and an elastic sleeve is embedded in the gap to prevent material from leaking out from the left side. The elastic sleeve can be a rubber ring or other elastomer, and is not particularly limited here. Those skilled in the art can set it as needed.
[0040] In one or more specific embodiments of this utility model, in order to extend the lifespan of the outer network 6 and the inner network 8, reinforcing ribs are provided at equal intervals on the outer network 6 and the inner network 8.
[0041] In one or more specific embodiments of this utility model, the aperture of the outer mesh 6 is <5μm.
[0042] With the design of this invention, the grinding fineness of high-performance hydroxyl acrylic resin can be less than 5μm.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A grinding apparatus for the production of self-crosslinking reinforced aqueous single-component epoxy dispersions, characterized in that, Includes a horizontal housing (1) and a main shaft (4). The bottom of the horizontal housing (1) is provided with a discharge pipe (3). The horizontal housing (1) forms an outer cavity (2). The main shaft (4) is horizontally located at the center of the outer cavity (2). The left end of the main shaft (4) extends out of the horizontal housing (1). An outer mesh (6) is provided inside the outer cavity (2). The outer mesh (6) forms a middle cavity (7). An inner mesh (8) is provided inside the middle cavity (7). The inner mesh (8) forms an inner cavity (9). The main shaft (4) and the auger... The dragon shaft (5) is located inside the inner cavity (9). The right end of the inner mesh (8) is connected to the right wall of the horizontal box (1). The left end of the outer mesh (6) is installed on the main shaft (4). The part of the main shaft (4) located inside the inner cavity (9) is equipped with an abrasive roller (10). The left end of the inner mesh (8) is provided with a receiving hole that allows the main shaft (4) to pass through. Abrasive balls (11) are set in the space between the inner mesh (8) and the outer mesh (6). The aperture of the outer mesh (6) is < the aperture of the inner mesh (8).
2. The grinding apparatus for producing self-crosslinking reinforced aqueous single-component epoxy dispersions according to claim 1, characterized in that, It also includes an auger shaft (5), the left end of which is inserted into the horizontal box (1), and a feeding hopper (12) is installed above the auger shaft (5).
3. The grinding apparatus for producing self-crosslinking reinforced aqueous single-component epoxy dispersions according to claim 2, characterized in that, The auger shaft (5) is located above the main shaft (4).
4. The grinding apparatus for producing self-crosslinking reinforced aqueous single-component epoxy dispersions according to claim 1, characterized in that, A screw propeller (13) is installed on a section of the main shaft (4) near the right wall of the horizontal housing (1).
5. The grinding apparatus for producing self-crosslinking reinforced aqueous single-component epoxy dispersions according to claim 1, characterized in that, The inner mesh (8) is provided with several baffles (14) extending toward the abrasive roller (10).
6. The grinding apparatus for producing self-crosslinking reinforced aqueous single-component epoxy dispersions according to claim 1, characterized in that, The abrasive roller (10) has spiral grooves (15) spaced out at equal intervals.
7. The grinding apparatus for producing self-crosslinking reinforced aqueous single-component epoxy dispersions according to claim 1, characterized in that, The right wall of the horizontal housing (1) is welded with a first positioning tube (16), and the right end of the main shaft (4) is located inside the first positioning tube (16).
8. The grinding apparatus for producing self-crosslinking reinforced aqueous single-component epoxy dispersions according to claim 7, characterized in that, The horizontal box (1) has a second positioning tube (17) and a third positioning tube (18) welded on its right wall. The right end of the outer mesh (6) is located in the gap formed between the second positioning tube (17) and the third positioning tube (18).
9. The grinding apparatus for producing self-crosslinking reinforced aqueous single-component epoxy dispersions according to claim 1, characterized in that, A gap is provided between the wall of the receiving hole and the outer wall of the main shaft (4), and an elastic sleeve is embedded in the gap.
10. The grinding apparatus for producing self-crosslinking reinforced aqueous single-component epoxy dispersions according to claim 1, characterized in that, The aperture of the outer mesh (6) is <5μm.