A calcium carbonate grinding device
By introducing a multi-layer grinding structure and auger rod into the calcium carbonate grinding device, the problem of incomplete grinding in existing devices has been solved, and efficient multi-stage grinding and particle collection of calcium carbonate have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANZHOU LIANFENG POWDER TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-23
AI Technical Summary
Existing calcium carbonate grinding devices lack a secondary grinding structure, leading to clumping or incomplete grinding, which affects the grinding effect.
A calcium carbonate grinding device was designed, comprising first and second grinding layers inside a tank, a filter screen, a support plate, and an auger rod. Through the cooperation of the inclined grinding layer and the auger rod, the calcium carbonate is ground multiple times, ensuring that the particles meet the requirements and are collected in a concentrated manner.
This process achieves thorough grinding of calcium carbonate, ensuring that powder meeting particle size requirements is collected, while powder that does not meet the requirements is ground again until it does, thus improving grinding efficiency and effectiveness.
Smart Images

Figure CN224388932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calcium carbonate processing technology, specifically a calcium carbonate grinding device. Background Technology
[0002] Calcium carbonate is an inorganic compound, commonly known as limestone, stone powder, and marble. It is an important building material with a wide range of industrial applications. Whether in the construction or industrial sectors, calcium carbonate needs to be crushed and ground before it can be used in the next step.
[0003] The utility model with announcement number CN207126587U discloses a calcium carbonate grinding device, including a tank. The top of the tank is connected to a filling pipe, and a motor is fixedly connected to the top right side of the tank. The rotating shaft of the motor is fixedly connected to a first rotating shaft. The end of the first rotating shaft away from the rotating shaft of the motor passes through the tank and extends into the interior of the tank, where it is movably connected to the inner wall of the tank. However, in actual grinding, this utility model does not have a secondary grinding structure. When agglomerates or incompletely ground calcium carbonate occur, it cannot automatically perform secondary grinding, thus affecting the grinding effect of calcium carbonate.
[0004] Therefore, it is necessary to design a calcium carbonate grinding device to address the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a calcium carbonate grinding device to solve at least one technical problem existing in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A calcium carbonate grinding apparatus, comprising:
[0008] The tank has a collection container at its bottom and a servo motor fixed at its top. A docking post is fixed at the output end of the servo motor, and a support rod is fixed on the surface of the docking post.
[0009] A first grinding layer is fixed to the inner wall of the tank. A second grinding layer is provided on the inner side of the first grinding layer. Grinding strips are provided on the surfaces of the first and second grinding layers facing each other. The second grinding layer is fixedly connected to the end of the support rod away from the docking column.
[0010] A filter screen is located below the first and second grinding layers. The filter screen is fixed to the inner wall of the tank. A support plate is also installed on the filter screen. A column is fixed to the surface of the support plate. A sleeve is installed at the end of the column away from the support plate. The sleeve is fitted inside the second grinding layer. An auger rod is installed inside the sleeve. The auger rod is fixedly connected to the docking column.
[0011] Preferably, the tank is equipped with a feeding port.
[0012] Preferably, the collection container is located directly below the filter screen, and the edge of the collection container is in contact with the inner wall of the tank.
[0013] Preferably, the abrasive strips are evenly distributed on the inner surface of the first abrasive layer and the outer surface of the second abrasive layer.
[0014] Preferably, the upper surfaces of both the first and second grinding layers are inclined on the side facing the grinding strip.
[0015] Preferably, the filter screen has a downwardly recessed structure, and the filter screen is welded to the support plate.
[0016] Preferably, the columns are evenly distributed on the support plate, and the sleeve is fixedly connected to the support plate through the columns.
[0017] Preferably, the outer surface of the sleeve is in contact with the inner surface of the second grinding layer, and the second grinding layer and the sleeve are rotatably connected.
[0018] Preferably, the end of the auger rod furthest from the docking column is rotatably connected to the support plate.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] After calcium carbonate is added to the tank, it rolls down the inclined upper surfaces of the first and second grinding layers and is ground and pulverized between the grinding strips. The ground calcium carbonate powder falls onto the filter screen. Calcium carbonate powder that meets the particle size requirements passes through the filter screen and is collected in the collection container. Calcium carbonate powder that does not meet the particle size requirements is intercepted by the filter screen and rolls down the inclined filter screen onto the support plate. The auger rod will drive the calcium carbonate powder that does not meet the requirements upwards until it is discharged from the opening at the top of the sleeve. Then, it falls back between the first and second grinding layers for secondary grinding until it meets the processing requirements. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0022] Figure 2 This is a schematic diagram of the internal structure of the tank body of this utility model.
[0023] Figure 3 This is a cross-sectional view of the first and second grinding layers of this utility model.
[0024] Figure 4 This is a three-dimensional structural diagram of the filter screen and sleeve of this utility model.
[0025] Figure 5 This is a schematic diagram of the distribution structure of the grinding strips of this utility model.
[0026] In the diagram: 1. Tank; 2. Collection container; 3. Feeding port; 4. Servo motor; 5. Connecting column; 6. Support rod; 7. Second grinding layer; 8. First grinding layer; 9. Grinding strip; 10. Filter screen; 11. Support plate; 12. Column; 13. Sleeve; 14. Screw rod. Detailed Implementation
[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.
[0030] 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.
[0031] Please see Figures 1-5 One embodiment provided by this utility model:
[0032] A calcium carbonate grinding apparatus, comprising:
[0033] Tank 1 has a feeding port 3 installed on it. The calcium carbonate to be processed can be fed into the tank 1 through the feeding port 3 for processing. A collection container 2 is set at the bottom of the tank 1. The collection container 2 is located directly below the filter screen 10. The edge of the collection container 2 is in contact with the inner wall of the tank 1. The collection container 2 can collect the calcium carbonate powder that passes through the filter screen 10. A servo motor 4 is fixed at the top of the tank 1. A docking column 5 is fixed at the output end of the servo motor 4. A support rod 6 is fixed on the surface of the docking column 5.
[0034] The first grinding layer 8 is fixed on the inner wall of the tank 1. The inner side of the first grinding layer 8 is provided with a second grinding layer 7. Grinding strips 9 are provided on the surfaces of the first grinding layer 8 and the second grinding layer 7 facing each other. The second grinding layer 7 is fixedly connected to the end of the support rod 6 away from the docking column 5.
[0035] The filter screen 10 is located below the first grinding layer 8 and the second grinding layer 7. The filter screen 10 is fixed to the inner wall of the tank body 1. A support plate 11 is also installed on the filter screen 10. A column 12 is fixed on the surface of the support plate 11. A sleeve 13 is installed at the end of the column 12 away from the support plate 11. The sleeve 13 is fitted inside the second grinding layer 7. An auger rod 14 is installed inside the sleeve 13. The auger rod 14 is fixedly connected to the docking column 5.
[0036] In one embodiment, the grinding strips 9 are evenly distributed on the inner surface of the first grinding layer 8 and the outer surface of the second grinding layer 7, so that when the first grinding layer 8 and the second grinding layer 7 move relative to each other, the grinding strips 9 on the two surfaces will cooperate to grind the calcium carbonate.
[0037] In one preferred embodiment, the upper surfaces of the first grinding layer 8 and the second grinding layer 7 are both inclined on the side facing the grinding strip 9, which facilitates the calcium carbonate to fall along the inclined upper surfaces of the first grinding layer 8 and the second grinding layer 7 and be ground between the first grinding layer 8 and the second grinding layer 7.
[0038] In one embodiment, the filter screen 10 has a downwardly recessed structure, and the filter screen 10 and the support plate 11 are welded together, which improves the stability of the structure between the filter screen 10 and the support plate 11. At the same time, calcium carbonate powder that does not meet the grinding requirements can fall onto the support plate 11 and collect along the inclined inner wall of the filter screen 10.
[0039] In one preferred embodiment, the columns 12 are evenly distributed on the support plate 11, the sleeve 13 is fixedly connected to the support plate 11 through the columns 12, and the end of the auger rod 14 away from the docking column 5 is rotatably connected to the support plate 11, which improves the structural stability among the sleeve 13, the columns 12 and the support plate 11, and facilitates the upward conveying of calcium carbonate powder that does not meet the grinding requirements through the sleeve 13 when the auger rod 14 rotates.
[0040] In one preferred embodiment, the outer surface of the sleeve 13 is in contact with the inner surface of the second grinding layer 7, and the second grinding layer 7 and the sleeve 13 are rotatably connected, which facilitates the rotation of the second grinding layer 7 on the outside of the sleeve 13 and avoids affecting the grinding process of the second grinding layer 7.
[0041] The working principle of this utility model is as follows: First, calcium carbonate is fed into the tank 1 through the feeding port 3. At this time, the calcium carbonate will roll down along the inclined upper surface of the first grinding layer 8 and the second grinding layer 7 into the gap between the first grinding layer 8 and the second grinding layer 7. At the same time, the servo motor 4 is started. The servo motor 4 drives the auger rod 14 and the second grinding layer 7 to rotate through the docking column 5 and the support rod 6 respectively. At this time, the second grinding layer 7 moves inside the first grinding layer 8. The two are ground and crushed by the grinding strip 9. The ground calcium carbonate powder will fall onto the filter screen 10. The calcium carbonate powder that meets the particle size requirements will pass through the filter screen 10 and be collected in the collection container 2. The calcium carbonate powder that does not meet the particle size requirements will be intercepted by the filter screen 10 and roll down along the inclined filter screen 10 onto the support plate 11. The auger rod 14 will drive the calcium carbonate powder that does not meet the requirements to move upward until the calcium carbonate powder is discharged from the upper opening of the sleeve 13, and then fall back between the first grinding layer 8 and the second grinding layer 7 for secondary grinding until it meets the processing requirements.
[0042] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A calcium carbonate grinding device, characterized by, It includes: The tank (1) has a collection container (2) at its bottom and a servo motor (4) fixed at its top. The output end of the servo motor (4) is fixed with a docking post (5) and a support rod (6) is fixed on the surface of the docking post (5). The first grinding layer (8) is fixed on the inner wall of the tank (1). The inner side of the first grinding layer (8) is provided with a second grinding layer (7). The first grinding layer (8) and the second grinding layer (7) are both provided with grinding strips (9) facing each other. The second grinding layer (7) is fixedly connected to the end of the support rod (6) away from the docking column (5). A filter screen (10) is located below the first grinding layer (8) and the second grinding layer (7). The filter screen (10) is fixed on the inner wall of the tank (1). A support plate (11) is also installed on the filter screen (10). A column (12) is fixed on the surface of the support plate (11). A sleeve (13) is installed at the end of the column (12) away from the support plate (11). The sleeve (13) is fitted inside the second grinding layer (7). An auger rod (14) is provided inside the sleeve (13). The auger rod (14) is fixedly connected to the docking column (5).
2. The calcium carbonate grinding apparatus according to claim 1, characterized in that: The tank (1) is equipped with a feeding port (3).
3. The calcium carbonate grinding apparatus according to claim 1, characterized in that: The collection container (2) is located directly below the filter screen (10), and the edge of the collection container (2) is in contact with the inner wall of the tank (1).
4. The calcium carbonate grinding apparatus according to claim 1, characterized in that: The abrasive strips (9) are evenly distributed on the inner surface of the first abrasive layer (8) and the outer surface of the second abrasive layer (7).
5. A calcium carbonate grinding apparatus according to claim 1, characterized in that: The upper surfaces of the first grinding layer (8) and the second grinding layer (7) are both inclined on the side facing the grinding strip (9).
6. The calcium carbonate grinding apparatus according to claim 1, characterized in that: The filter screen (10) has a downward recessed structure, and the filter screen (10) and the support plate (11) are welded together.
7. The calcium carbonate grinding apparatus according to claim 1, characterized in that: The columns (12) are evenly distributed on the support plate (11), and the sleeve (13) is fixedly connected to the support plate (11) through the columns (12).
8. A calcium carbonate grinding apparatus according to claim 1, characterized in that: The outer surface of the sleeve (13) is in contact with the inner surface of the second grinding layer (7), and the second grinding layer (7) and the sleeve (13) are rotatably connected.
9. A calcium carbonate grinding apparatus according to claim 1, characterized in that: The end of the auger rod (14) away from the docking column (5) is rotatably connected to the support plate (11).