A wet grinding device for calcium carbonate

Abstract

The utility model relates to calcium carbonate grinding technical field, concretely relates to a calcium carbonate wet grinding device, including grinder body, the bottom of grinder body is equipped with the inner box, the top of inner box is equipped with separation assembly, separation assembly is used for separating out the big particle calcium carbonate contained in the material of grinding discharge, separation assembly includes the filter plate in the inner box, the top of filter plate is equipped with the pressing plate, and the fixed connection of grinder body has the discharge pipe and the transfer pipe, and the discharge pipe is connected on the transfer pipe. The utility model discloses through the separation assembly can make the grinder body in the process of calcium carbonate wet grinding, the mixed mud of calcium carbonate and water can separate and filter out the big particle calcium carbonate not being fully ground among them when passing through the filter plate, prevents the big particle calcium carbonate from flowing out and influences the final quality of product.

Description

Technical Field

[0001] This utility model relates to the field of calcium carbonate grinding technology, and in particular to a wet grinding device for calcium carbonate. Background Technology

[0002] A wet grinding apparatus for calcium carbonate is a system used to grind calcium carbonate raw materials (such as natural calcite, limestone, dolomite, etc.) into ultrafine powder through a wet process. Its core is to use water or solution as a dispersion medium and combine it with grinding machinery to achieve ultrafine calcium carbonate particles.

[0003] When a wet grinding device for calcium carbonate completes the grinding of calcium carbonate, the discharged grinding material is essentially a mixture of calcium carbonate powder and water, and the mixture is usually in the form of slurry. Due to limitations of the equipment, such as the grinding media (e.g., steel balls, zirconia beads) being too large or having insufficient filling rate, dead corners in the grinding chamber, or uneven flow field, a small amount of incompletely ground large calcium carbonate particles may be present in the discharged slurry. A small amount of incompletely ground large calcium carbonate particles will affect the final quality of the product.

[0004] To address this, a wet grinding apparatus for calcium carbonate is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a wet grinding device for calcium carbonate to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wet grinding device for calcium carbonate, comprising a grinding mill body, an inner box at the bottom of the grinding mill body; a separation component at the top of the inner box, the separation component being used to quickly separate large particles of calcium carbonate contained in the material discharged from the grinding mill, the separation component including a filter plate disposed in the inner box, a pressure plate at the top of the filter plate, and a discharge pipe and a transfer pipe fixedly connected to the grinding mill body, the discharge pipe being connected to the transfer pipe.

[0007] Preferably, an electric push rod is fixedly installed in the transfer tube, and the end of the electric push rod is fixedly connected to a push plate adapted to the transfer tube, and the push plate is slidably connected in the transfer tube.

[0008] Preferably, a connecting pipe is fixedly connected to the pressure plate, and the connecting pipe is slidably connected in the transfer pipe. An outer box is provided outside the inner box, and a tension spring is fixedly connected between the outer box and the pressure plate.

[0009] Preferably, a motor is fixedly installed on the outer casing, and a threaded rod is fixedly connected to the output shaft of the motor. A limit groove is provided in the outer casing, and a push frame is slidably connected in the limit groove, and the push frame is threadedly connected to the threaded rod.

[0010] Preferably, the push frame is slidably connected in the inner box, and push rods are fixedly connected to both sides of the push frame. The pressure plate has a notch for the push frame to slide.

[0011] Preferably, a frame is fixedly installed on the outer box, a sealing plate is slidably connected in the inner box, and a spring and a telescopic rod are fixedly connected between the frame and the sealing plate.

[0012] Preferably, discharge channels are fixedly connected to both sides of the bottom of the outer casing, and lifting devices are fixedly connected to the discharge channels. The lifting devices are used to discharge large particles of calcium carbonate back into the grinding machine body for further grinding.

[0013] The beneficial effects of this utility model are: This invention, by incorporating a separation component, enables the grinding mill body to separate and filter out large, insufficiently ground calcium carbonate particles during the wet grinding process of calcium carbonate. This prevents large particles from flowing out and affecting the final product quality. Furthermore, as the grinding mill body continuously discharges slurry onto the filter plate, the slurry accumulates on the filter plate. The downward movement of the push plate pushes the pressure plate at the bottom to squeeze the slurry, thereby accelerating its passage through the filter plate and improving separation efficiency.

[0014] Meanwhile, the large calcium carbonate particles separated from the slurry material by the filter plate are located on the surface of the filter plate. Driven by the motor, the pusher frame can push the large calcium carbonate particles to both ends of the inner cavity of the inner box, and the sealing plate gradually opens. The pusher frame pushes the large calcium carbonate particles into the discharge channel and is then transported to the grinding mill body by the lifting device for further grinding, so that it becomes qualified in a suitable size. The entire device does not require manual handling of the separated large calcium carbonate particles, and timely handling can prevent clogging of the filter plate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model 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 only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a wet grinding apparatus for calcium carbonate according to an embodiment of the present invention; Figure 2 This invention relates to a wet grinding apparatus for calcium carbonate. Figure 1 Enlarged structural diagram at point A in the middle; Figure 3This is a cross-sectional view of the outer casing of a wet grinding apparatus for calcium carbonate according to an embodiment of the present invention. Figure 4 This is a cross-sectional view of the transfer tube of a wet grinding apparatus for calcium carbonate according to an embodiment of the present invention; Figure 5 This invention relates to a wet grinding apparatus for calcium carbonate. Figure 4 Enlarged structural diagram at point B.

[0017] The components in the diagram are labeled as follows: 1. Grinding machine body; 2. Inner box; 3. Filter plate; 4. Pressure plate; 5. Discharge pipe; 6. Transfer pipe; 7. Electric push rod; 8. Push plate; 9. Connecting pipe; 10. Outer box; 11. Tension spring; 12. Motor; 13. Threaded rod; 14. Limiting groove; 15. Push frame; 16. Push rod; 17. Notch; 18. Frame; 19. Sealing plate; 20. Spring; 21. Telescopic rod; 22. Discharge channel; 23. Lifting device. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] like Figures 1 to 5As shown in the figure, a specific embodiment of this utility model provides a wet grinding device for calcium carbonate, including a grinding mill body 1, an inner box 2 at the bottom of the grinding mill body 1, and a separation component at the top of the inner box 2. The separation component is used to quickly separate large particles of calcium carbonate contained in the material discharged from the grinding mill. During the operation of the grinding mill body 1, a small amount of large particles of calcium carbonate are not fully ground and are discharged outward in the mixed slurry. By setting the separation component, they can be quickly separated from the mixed slurry and then re-enter the grinding mill body 1 to be fully ground in the subsequent process, thereby preventing the material discharged from the grinding mill body 1 from still containing large particles of calcium carbonate and affecting the final quality of the product. The separation component includes a filter plate 3 in the inner box 2, a pressure plate 4 at the top of the filter plate 3, and a discharge pipe 5 and a transfer pipe 6 fixedly connected to the grinding mill body 1, with the discharge pipe 5 connected to the transfer pipe 6.

[0021] like Figures 1 to 5 As shown, specifically, an electric push rod 7 is fixedly installed in the transfer pipe 6, and a push plate 8 adapted to the transfer pipe 6 is fixedly connected to the end of the electric push rod 7. The push plate 8 is slidably connected in the transfer pipe 6. A connecting pipe 9 is fixedly connected to the pressure plate 4, and the connecting pipe 9 is slidably connected in the transfer pipe 6. An outer box 10 is provided outside the inner box 2, and a tension spring 11 is fixedly connected between the outer box 10 and the pressure plate 4. The grinding machine body 1 is existing technology and can grind calcium carbonate. The slurry mixture formed after grinding is discharged downward through the discharge pipe 5 at the bottom. The mixed slurry enters the transfer pipe 6 through the discharge pipe 5 and then enters the connecting pipe 9. The slurry is discharged downward through the connecting pipe 9 and falls onto the surface of the filter plate 3 at the bottom. At this time, the filter plate 3 can process the slurry material. The process involves filtration and separation. Calcium carbonate particles that meet the grinding size requirements can be discharged downwards through filter plate 3 and collected at the bottom of filter plate 3 by a collection box set up by staff. Large calcium carbonate particles that do not meet the size requirements cannot pass through filter plate 3 and are separated and accumulate on the surface of filter plate 3. At the same time, as slurry material is continuously discharged downwards from the grinding mill body 1, the flow rate of the slurry is low when it gradually passes through filter plate 3, resulting in more and more slurry material accumulating on the surface of filter plate 3. At this point, the downward discharge of slurry material from the grinding mill body 1 is stopped, and the electric push rod 7 is activated to push the push plate 8 at the bottom to move downwards. The push plate 8 moves downwards in the transfer pipe 6 and pushes the connecting pipe 9 at the bottom to move downwards, thereby pushing the pressure plate 4 to move downwards.

[0022] As the pressure plate 4 descends, the tension spring 11 contracts under pressure, generating a reaction force. The pressure plate 4 gradually enters the inner box 2 at the bottom. Due to the excessive accumulation of mud material on the surface of the filter plate 3, i.e., in the inner box 2, the downward movement of the pressure plate 4 can squeeze the accumulated mud material, thereby accelerating its passage through the filter plate 3 and improving the filtration and separation efficiency. This allows large particles of calcium carbonate to be separated more quickly. After the pressure plate 4 has completed a period of squeezing, it reverses the electric push rod 7 to drive the push plate 8 to move upward and reset. At the same time, after the pressure of the push plate 8 is no longer applied, the connecting pipe 9 can move upward and reset under the reaction force of the tension spring 11.

[0023] like Figures 1 to 5 As shown, specifically, a motor 12 is fixedly installed on the outer casing 10, and a threaded rod 13 is fixedly connected to the output shaft of the motor 12. A limit groove 14 is opened in the outer casing 10, and a push frame 15 is slidably connected in the limit groove 14. The push frame 15 is threadedly connected to the threaded rod 13. The push frame 15 is slidably connected in the inner casing 2. Push rods 16 are fixedly connected to both sides of the push frame 15. A notch 17 is opened on the pressure plate 4 for the push frame 15 to slide. After the filter plate 3 completes the separation of the mud material, a large amount of separated large particles of calcium carbonate will accumulate on the surface of the filter plate 3. At this time, the motor 12 is started. When the threaded rod 13 rotates, the push frame 15 can slide in the limiting groove 14 under the cooperation of the limiting groove 14 and the threaded rod 13. That is, the push frame 15 can slide along the bottom filter plate 3 in the inner box 2. At this time, the sliding of the push frame 15 can push and move the large particles of calcium carbonate accumulated on the surface of the filter plate 3 to both ends of the inner box 2. The notch 17 is set so that when the push frame 15 is not working and is in the middle position of the inner box 2, the downward movement of the pressure plate 4 can make the push frame 15 slide in the notch 17, so that the presence of the push frame 15 does not affect the movement of the pressure plate 4.

[0024] A frame 18 is fixedly installed on the outer casing 10, and a sealing plate 19 is slidably connected in the inner casing 2. A spring 20 and a telescopic rod 21 are fixedly connected between the frame 18 and the sealing plate 19. Discharge channels 22 are fixedly connected to both sides of the bottom of the outer casing 10. A lifting device 23 is fixedly connected to the discharge channel 22. The lifting device 23 is used to discharge large-particle calcium carbonate back into the grinding machine body 1 for re-grinding. When the pushing frame 15 moves to push the large-particle calcium carbonate to both sides of the inner cavity of the inner casing 2, the push rod 16 gradually approaches and applies pressure to the sealing plate 19. Under the pressure of the push rod 16, the sealing plate 19 gradually separates from the inner casing 2. The spring 20 and the telescopic rod 21 contract under force to generate a reaction force, and the sealing plate 19 opens, allowing the pushing frame 15 to push the large-particle calcium carbonate into the discharge channel 22. The large-particle calcium carbonate entering the discharge channel 22... Finally, the material enters the lifting device 23 and is transported again to the grinding machine body 1 for grinding. After being ground to the appropriate size, it is finally collected. The large particles of calcium carbonate are treated in time to prevent them from clogging the filter plate 3. The lifting device 23 is existing technology and can lift and transport materials upwards, so it will not be described in detail. The reverse drive motor 12 can cause the push frame 15 to move in the reverse direction. The push rod 16 is disengaged from the sealing plate 19. The sealing plate 19 is no longer under the pressure of the push rod 16. At this time, under the reaction force of the spring 20, it is pushed into the inner box 2 to form a seal again. The back-and-forth cyclical movement of the push frame 15 can transport all the large particles of calcium carbonate on the surface of the filter plate 3 to the lifting device 23. After the large particles of calcium carbonate are processed, the push frame 15 is placed in the middle position of the inner box 2 again for subsequent reuse.

[0025] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0026] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wet grinding apparatus for calcium carbonate, comprising a grinding mill body (1), wherein the bottom end of the grinding mill body (1) is provided with an inner box (2), characterized in that: The top of the inner box (2) is provided with a separation component, which is used to quickly separate large particles of calcium carbonate contained in the material discharged from the grinding process. The separation component includes a filter plate (3) installed in the inner box (2), and a pressure plate (4) is provided at the top of the filter plate (3). A discharge pipe (5) and a transfer pipe (6) are fixedly connected to the grinding machine body (1), and the discharge pipe (5) is connected to the transfer pipe (6).

2. The wet grinding apparatus for calcium carbonate according to claim 1, characterized in that, An electric push rod (7) is fixedly installed in the transfer tube (6), and a push plate (8) adapted to the transfer tube (6) is fixedly connected to the end of the electric push rod (7), and the push plate (8) is slidably connected in the transfer tube (6).

3. The wet grinding apparatus for calcium carbonate according to claim 1, characterized in that, A connecting pipe (9) is fixedly connected to the pressure plate (4), and the connecting pipe (9) is slidably connected in the transfer pipe (6). An outer box (10) is provided outside the inner box (2), and a tension spring (11) is fixedly connected between the outer box (10) and the pressure plate (4).

4. The wet grinding apparatus for calcium carbonate according to claim 3, characterized in that, A motor (12) is fixedly installed on the outer casing (10), and a threaded rod (13) is fixedly connected to the output shaft of the motor (12). A limit groove (14) is opened in the outer casing (10), and a push frame (15) is slidably connected in the limit groove (14), and the push frame (15) is threadedly connected to the threaded rod (13).

5. The wet grinding apparatus for calcium carbonate according to claim 4, characterized in that, The push frame (15) is slidably connected in the inner box (2), and push rods (16) are fixedly connected on both sides of the push frame (15). The pressure plate (4) has a notch (17) for the push frame (15) to slide.

6. The wet grinding apparatus for calcium carbonate according to claim 4, characterized in that, A frame (18) is fixedly installed on the outer box (10), and a sealing plate (19) is slidably connected in the inner box (2). A spring (20) and a telescopic rod (21) are fixedly connected between the frame (18) and the sealing plate (19).

7. The wet grinding apparatus for calcium carbonate according to claim 4, characterized in that, Both sides of the bottom of the outer box (10) are fixedly connected to discharge channels (22), and a lifting device (23) is fixedly connected to the discharge channels (22). The lifting device (23) is used to discharge large particles of calcium carbonate back into the grinding machine body (1) for grinding again.

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