Superfine calcium carbonate grinding device

Abstract

The utility model discloses an ultra-fine calcium carbonate grinding device which comprises a grinding kettle and a fixing assembly, a crushing groove and a grinding groove are formed in the grinding kettle, a plurality of fixing teeth are fixedly connected to the inner surface of the crushing groove, a rotating column is arranged on the inner surface of the grinding kettle, and the fixing assembly is arranged on the rotating column. The outer surface of the rotating column is fixedly connected with four connecting rods, the outer surfaces of the four connecting rods are fixedly connected with dividing knives, the outer surface of the rotating column is fixedly connected with a frustum, the outer surface of the frustum is fixedly connected with a plurality of rotating teeth, and the outer surface of the rotating column is fixedly connected with a grinding roller. The crushing tank and the grinding tank are arranged in the grinding kettle at the same time, and the internal communication design is adopted, so that materials can be crushed and ground in one device in sequence, the material loss and pollution risk are reduced, meanwhile, the efficiency of the whole production process is improved, and the equipment cost and the production space are saved.

Description

Technical Field

[0001] This utility model relates to the technical field of calcium carbonate powder production equipment, and in particular to an ultrafine calcium carbonate grinding device. Background Technology

[0002] Ultrafine calcium carbonate powder refers to powder with an average particle size (d) ≤ 0.02 μm. Due to its advantages of small particle size, uniform particle size, and high surface activity, ultrafine calcium carbonate powder is widely used in various industries such as coatings, plastics, papermaking, and inks. Correspondingly, because ultrafine calcium carbonate powder has high requirements for particle size, it needs to be processed and ground using specific grinding equipment to meet the requirements for particle size and uniformity.

[0003] In the use of ultrafine calcium carbonate grinding equipment, the lack of a coherent internal structure can lead to unnecessary material loss and the risk of contamination, resulting in a waste of material costs. Utility Model Content

[0004] The purpose of this invention is to provide an ultrafine calcium carbonate grinding device. By simultaneously setting a crushing tank and a grinding tank in the grinding kettle and through an internal interconnection design, the material can complete the crushing and grinding processes in one device in sequence, reducing material loss and pollution risk, while improving the efficiency of the entire production process and saving equipment costs and production space.

[0005] To achieve the above objectives, an ultrafine calcium carbonate grinding device is provided, comprising: a grinding vessel and a fixing assembly. The grinding vessel has a crushing groove and a grinding groove inside. Several fixed teeth are fixedly connected to the inner surface of the crushing groove. A rotating column is arranged on the inner surface of the grinding vessel. Four connecting rods are fixedly connected to the outer surface of the rotating column. Dividing blades are fixedly connected to the outer surfaces of the four connecting rods. A frustum is fixedly connected to the outer surface of the rotating column. Several rotating teeth are fixedly connected to the outer surface of the frustum. A grinding roller is fixedly connected to the outer surface of the rotating column. All components work together to achieve continuous processing of materials from dividing and crushing to grinding, thereby improving production efficiency.

[0006] According to the aforementioned ultrafine calcium carbonate grinding device, the cross-section of the crushing trough is inverted conical, and the size of the truncated cone is adapted to the size of the crushing trough. The inverted conical crushing trough and the adapted truncated cone facilitate the downward flow of materials, ensuring a smooth and orderly crushing process.

[0007] According to the aforementioned ultrafine calcium carbonate grinding device, the fixed teeth and rotating teeth are arranged alternately, and the number of fixed teeth corresponds to the number of rotating teeth. The alternation and correspondence of the fixed and rotating teeth enhance the crushing effect, allowing for more thorough material crushing.

[0008] According to the aforementioned ultrafine calcium carbonate grinding device, the crushing tank and the grinding tank are internally connected, and the connecting rod is located above the truncated cone. The connection between the two tanks enables seamless material transition, and the connecting rod first divides the material to facilitate subsequent crushing.

[0009] According to the aforementioned ultrafine calcium carbonate grinding device, the grinding groove has a composite structure of conical and elliptical cross-sections, with the upper part being a conical curved surface and the lower part being formed by rotating an elliptical contour. The size of the grinding roller is adapted to the size of the grinding groove. This special grinding groove structure and compatible grinding roller improve grinding uniformity and fineness, ensuring product quality.

[0010] According to the aforementioned ultrafine calcium carbonate grinding device, a fixing assembly is provided on the outer surface of the grinding vessel. The fixing assembly includes a drive motor, a controller, a feed pipe, a discharge pipe, and support legs. The drive motor is fixedly connected to the upper surface of the grinding vessel. Feed pipes and a controller are respectively located on the left and right sides of the outer surface of the drive motor. Support legs are fixedly connected around the lower surface of the grinding vessel, and discharge pipes are provided between each of the four support legs, with the discharge pipes fixedly connected to the lower surface of the grinding vessel. Each part of the fixing assembly performs its respective function, ensuring stable equipment operation, material feeding and discharging, and parameter control.

[0011] According to the aforementioned ultrafine calcium carbonate grinding device, the output end of the drive motor is fixedly connected to the rotating column, and the feed pipe extends into the interior of the crushing trough. The motor directly connects to the rotating column to provide stable power, and the feed pipe extending into the crushing trough facilitates material feeding.

[0012] The above-mentioned solution has the following beneficial effects:

[0013] This utility model is equipped with a crushing trough, fixed teeth, grinding kettle, rotating column, connecting rod, dividing knife, cone, rotating teeth and grinding roller. By simultaneously setting the crushing trough and grinding trough in the grinding kettle and through the internal interconnection design, the material can complete the crushing and grinding processes in one device in sequence, reducing material loss and pollution risk, while improving the efficiency of the entire production process and saving equipment costs and production space.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a perspective view of an ultrafine calcium carbonate grinding device according to the present invention;

[0017] Figure 2This is a front view of an ultrafine calcium carbonate grinding device according to the present invention;

[0018] Figure 3 This is a cross-sectional perspective view of an ultrafine calcium carbonate grinding device according to the present invention;

[0019] Figure 4 For utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0020] Legend:

[0021] 1. Grinding kettle; 2. Controller; 3. Drive motor; 4. Feed pipe; 5. Discharge pipe; 6. Support leg; 7. Crushing trough; 8. Connecting rod; 9. Dividing blade; 10. Cone; 11. Rotating tooth; 12. Fixed tooth; 13. Grinding roller; 14. Grinding trough; 15. Rotating column. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-4This utility model discloses an ultrafine calcium carbonate grinding device, comprising: a grinding vessel 1 and a fixing assembly. The grinding vessel 1 has a crushing groove 7 and a grinding groove 14 inside. The crushing groove 7 provides space for the initial crushing of materials and cooperates with the grinding groove 14 to allow the materials to complete the continuous processing of crushing and grinding in different functional areas. Several fixed teeth 12 are fixedly connected to the inner surface of the crushing groove 7. The fixed teeth 12 cooperate with the rotating teeth 11. When the materials enter the crushing groove 7, they are sheared and crushed by relative motion, improving the crushing efficiency. A rotating column 15 is provided on the inner surface of the grinding vessel 1. The rotating column 15 serves as the core support of the entire rotating component, providing rotational power and support for the connecting rods 8, the cone 10, and the grinding roller 13, enabling them to work together to process the materials. Four connecting rods 8 are fixedly connected to the outer surface of the rotating column 15. The four connecting rods 8 rotate under the drive of the rotating column 15. The dividing blades 9 on the outer surface of the rotating column 15 can handle larger materials entering the crushing groove 7. The material is initially divided to prepare for subsequent crushing and grinding. Dividing blades 9 are fixedly connected to the outer surfaces of the four connecting rods 8. The dividing blades 9 cut and disperse the material through the rotation of the connecting rods 8, preventing material agglomeration and facilitating subsequent crushing by the fixed teeth 12 and rotating teeth 11. A truncated cone 10 is fixedly connected to the outer surface of the rotating column 15. The truncated cone 10 is adapted to the inverted conical structure of the crushing tank 7, allowing the material to gradually move downwards along the surface of the truncated cone 10 during the crushing process. This facilitates the orderly processing and transfer of the material to the grinding tank 14. Several rotating teeth 11 are fixedly connected to the outer surface of the truncated cone 10. The rotating teeth 11 are staggered with the fixed teeth 12 and, driven by the rotating column 15, move relative to the fixed teeth 12, powerfully crushing the material and refining the particle size. A grinding roller 13 is fixedly connected to the outer surface of the rotating column 15. The grinding roller 13 cooperates with the grinding tank 14 and, driven by the rotating column 15, finely grinds the crushed material, further reducing the particle size.

[0024] The cross-section of the crushing trough 7 is an inverted cone shape. This inverted cone structure allows the material to move naturally downwards under the influence of gravity and rotating components, smoothly entering the grinding trough 14 from the crushing trough 7, ensuring the continuity of material processing. The size of the truncated cone 10 is matched with the size of the crushing trough 7. This matching relationship ensures that the gap between the rotating teeth 11 and the fixed teeth 12 is uniform, effectively crushing the material and ensuring smooth flow of the material within the crushing trough 7. The fixed teeth 12 and the rotating teeth 11 are staggered, which increases the area and intensity of action on the material during crushing, allowing the material to be crushed more thoroughly and improving the crushing effect. The number of fixed teeth 12 corresponds to the number of rotating teeth 11, ensuring that the material is crushed evenly during rotation. During the process, the fixed teeth 12 and the rotating teeth 11 can uniformly crush the material, avoiding uneven crushing. The crushing tank 7 and the grinding tank 14 are internally connected, and this connection design allows the material to transition naturally within the device, smoothly entering the grinding process from the crushing process, thus improving the overall efficiency of the grinding device. The connecting rod 8 is located above the cone 10. This positional relationship allows the dividing blade 9 to perform preliminary processing on the material first, providing a more suitable material state for the crushing work of the rotating teeth 11 on the cone 10. The cross-section of the grinding tank 14 is a composite structure of cone and ellipse, with the upper part being a conical curved surface and the lower part being rotated and formed by an elliptical contour. This special structure allows the grinding roller 13 to have more complex contact and interaction with the material during the grinding process. To improve the uniformity and fineness of grinding, the size of the grinding roller 13 is matched with the size of the grinding tank 14. This matching size ensures that the grinding roller 13 can effectively roll within the grinding tank 14, thoroughly grinding the material to achieve the required particle size. A fixing assembly is provided on the outer surface of the grinding tank 1. This assembly includes a drive motor 3, a controller 2, a feed pipe 4, a discharge pipe 5, and support legs 6. The fixing assembly provides power, control, material feeding and discharging, and support for the normal operation of the grinding tank 1. The various components cooperate to ensure the stable operation of the entire device. The drive motor 3 is fixedly connected to the upper surface of the grinding tank 1. The drive motor 3 provides power for the rotation of the rotating column 15, enabling the crushing and grinding components to operate normally and providing the power for the entire device. The drive motor 3 has a feed pipe 4 and a controller 2 on its left and right sides respectively. The feed pipe 4 is used to feed the material to be processed into the grinding kettle 1, and the controller 2 is used to control the operating parameters of the drive motor 3, such as speed and start / stop. The two work together to realize the feeding of materials and the control of the operation of the device. The lower surface of the grinding kettle 1 is fixedly connected with support legs 6. The support legs 6 provide stable support for the grinding kettle 1, ensuring the stability of the device during operation and preventing the working effect from being affected by vibration and other reasons. The four support legs 6 are all connected with discharge pipes 5, and the discharge pipes 5 are fixedly connected to the lower surface of the grinding kettle 1. The discharge pipes 5 are used to discharge the material after crushing and grinding from the device, and work with the feed pipe 4 to realize the continuous processing of materials.

[0025] Working principle: First, the operating parameters of the drive motor 3, such as the rotation speed, are set by the controller 2 to prepare for the grinding process. Then, the feed pipe 4 is opened, and the calcium carbonate material to be ground is fed into the crushing tank 7 of the grinding kettle 1. The drive motor 3 is started, driving the rotating column 15 to rotate. The connecting rod 8 on the rotating column 15 rotates accordingly. The dividing blades 9 on the outer surface of the connecting rod 8 initially divide the larger materials entering the crushing tank 7, dispersing the material. As the rotating column 15 rotates, the rotating teeth 11 on the outer surface of the cone 10 and the fixed teeth 12 on the inner surface of the crushing tank 7 move alternately, further dividing the divided material. The material undergoes powerful crushing. Because the crushing trough 7 is inverted conical and the size of the truncated cone 10 is adapted to it, the material gradually moves downward along the surface of the truncated cone 10 under the action of gravity and rotation. The crushed material enters the grinding trough 14, which is connected to the inside of the crushing trough 7. The rotating column 15 drives the grinding roller 13 to roll in the grinding trough 14. The special conical and elliptical composite structure of the grinding trough 14 allows the grinding roller 13 to fully contact the material and perform fine grinding, further reducing the particle size of the material. The ultrafine calcium carbonate material after grinding is discharged from the device through the discharge pipe 5, completing the entire grinding process.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An ultrafine calcium carbonate grinding device comprising: The grinding vessel (1) and the fixing assembly are characterized in that: the grinding vessel (1) is provided with a crushing groove (7) and a grinding groove (14) inside, a number of fixing teeth (12) are fixedly connected to the inner surface of the crushing groove (7), a rotating column (15) is provided on the inner surface of the grinding vessel (1), four connecting rods (8) are fixedly connected to the outer surface of the rotating column (15), a dividing blade (9) is fixedly connected to the outer surface of the four connecting rods (8), a frustum (10) is fixedly connected to the outer surface of the rotating column (15), a number of rotating teeth (11) are fixedly connected to the outer surface of the frustum (10), and a grinding roller (13) is fixedly connected to the outer surface of the rotating column (15).

2. The ultrafine calcium carbonate grinding device of claim 1, wherein: The cross-section of the crushing trough (7) is an inverted cone, and the size of the truncated cone (10) is adapted to the size of the crushing trough (7).

3. The ultra-fine calcium carbonate grinding device of claim 1, wherein: The fixed teeth (12) and rotating teeth (11) are arranged alternately, and the number of fixed teeth (12) and the number of rotating teeth (11) are arranged in a corresponding manner.

4. The ultra-fine calcium carbonate grinding device of claim 1, wherein: The internal connections of the crushing tank (7) and the grinding tank (14) are made, and the connecting rod (8) is located above the truncated cone (10).

5. The ultrafine calcium carbonate grinding device of claim 1, wherein: The cross-section of the grinding groove (14) is a composite structure of cone and ellipse, with the upper part being a conical surface and the lower part being formed by rotating an elliptical outline. The size of the grinding roller (13) is compatible with the size of the grinding groove (14).

6. The ultra-fine calcium carbonate grinding device of claim 1, wherein: The outer surface of the grinding vessel (1) is provided with a fixing component, which includes a drive motor (3), a controller (2), a feed pipe (4), a discharge pipe (5) and support legs (6). The upper surface of the grinding vessel (1) is fixedly connected to the drive motor (3). The left and right sides of the outer surface of the drive motor (3) are respectively provided with the feed pipe (4) and the controller (2). The lower surface of the grinding vessel (1) is fixedly connected with support legs (6) around the perimeter. The four support legs (6) are each provided with a discharge pipe (5), and the discharge pipe (5) is fixedly connected to the lower surface of the grinding vessel (1).

7. The ultrafine calcium carbonate grinding device of claim 6, wherein: The output end of the drive motor (3) is fixedly connected to the rotating column (15), and the feed pipe (4) extends into the interior of the crushing trough (7).

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