Ultrafine heavy calcium carbonate powder refining and filtering device
By designing a filtration device with a reciprocating oscillating screening box and an elliptical block vibration, the problem of large particles in powder that are difficult to remove in traditional devices is solved, achieving efficient and stable screening and improving powder quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG KUANGXIN CALCIUM IND CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional filtration devices are ineffective at removing larger particles from ultrafine heavy calcium carbonate powder, which affects the powder quality.
A filtration device was designed, comprising a screening box, a rotating disc, rollers, baffles, and a drive motor. The rotating disc drives the screening box to oscillate back and forth, and the elliptical blocks generate vibration. Combined with the baffles and return springs supporting the screen plate, the screening effect is enhanced.
It improves powder screening efficiency, avoids powder accumulation, enhances screening effect, ensures powder quality, and is easy to operate.
Smart Images

Figure CN224157285U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of powder refining and filtration devices, and in particular to a refining and filtration device for ultrafine heavy calcium carbonate powder. Background Technology
[0002] Ultrafine heavy calcium carbonate is a white powder made from high-quality calcite. Its main component is CaCO3, an inorganic salt, primarily produced by grinding natural carbonate minerals. The preparation process typically includes steps such as cleaning and removing impurities from raw materials, coarse crushing, fine crushing, sieving, grinding and grading, and material collection. In the plastics industry, ultrafine heavy calcium carbonate is widely used in filled plastic products such as polyvinyl chloride (PVC), polyethylene (PE), and polypropylene (PP). It can improve the dimensional stability, hardness, and rigidity of plastic products, improve processing performance, enhance heat resistance, improve light diffusion, and impart functionalities such as insulation and flame retardancy.
[0003] In the production of ultrafine heavy calcium carbonate, fine filtration is required to ensure that the powder is sufficiently fine. Traditional filtration and screening devices are inconvenient for screening powder and cannot filter out larger particles mixed in with the powder, thus affecting the quality of the powder. Therefore, they have certain drawbacks.
[0004] Therefore, in order to solve the above problems, this application provides an ultrafine heavy calcium carbonate powder refining and filtration device. Utility Model Content
[0005] The purpose of this invention is to provide an ultrafine heavy calcium carbonate powder refining and filtration device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an ultrafine heavy calcium carbonate powder refining and filtering device, comprising a base, a support frame installed at one top end of the base, a support seat installed at the top of the support frame, a pulley installed between the inner side walls of the support seat, a rotating disk installed on the outside of the support seat, a connecting rod installed at the outer edge of the rotating disk, two sets of upright plates installed at the top of the base, two sets of inclined rods symmetrically installed between the outer sides of the upright plates, a screening box installed at one end of the connecting rod, rollers installed at the four corners of the bottom of the screening box and on the inclined rods, and a sieve plate provided inside the screening box.
[0007] Preferably, a first drive motor is installed on the top of the base and below the support frame, a rotating wheel is installed on the output shaft of the first drive motor, and a belt is installed between the rotating wheel and the pulley.
[0008] Preferably, one end of the rotating disk is provided with a rotating shaft connected to a pulley, one end of the connecting rod is rotatably connected to the outside of the rotating disk, and the end of the connecting rod away from the rotating disk is rotatably connected to the outside of the screening box. The outer ring surface of the roller is provided with a groove, and the roller rolls on the inclined rod through the external groove.
[0009] Preferably, baffles are installed on the narrower side walls inside the screening box, and the heights of the two sets of baffles are not the same. Telescopic rods are symmetrically installed at both ends of the top of the baffles, and a return spring is installed on the outside of the telescopic rods. The top of the telescopic rods is connected to the bottom of the screen plate.
[0010] Preferably, a second drive motor is installed at one end of the outer side of the screening box, and a rotating rod is installed between the two wider side walls inside the screening box and below the sieve plate. One end of the rotating rod extends through the outside of the screening box and is connected to the output shaft of the second drive motor. Elliptical blocks are symmetrically installed at both ends of the outer ring surface of the rotating rod.
[0011] Preferably, a feed inlet is installed at one end of the top of the screening box, a first discharge outlet is installed on the narrower side of the outer side of the screening box, the first discharge outlet is flush with the screen plate, and a second discharge outlet is installed at one end of the bottom of the outer side of the screening box.
[0012] In summary, this application includes the following beneficial technical effects:
[0013] This is an ultrafine heavy calcium carbonate powder refining and filtering device. When the first drive motor starts, the rotating wheel drives the belt pulley to rotate, which in turn drives the rotating disk to rotate, realizing the reciprocating oscillation of the screening box. The rollers roll in the grooves on the inclined rod to ensure the smooth movement of the screening box and the screening and filtering of powder through the screen plate. The reciprocating motion of the screening box prevents the powder from accumulating on the screen plate. When the second drive motor starts, the rotating rod drives the elliptical block to rotate. Due to the irregular shape of the elliptical block, a periodic impact force is generated, causing the screen plate to vibrate and enhancing the screening effect. The baffle provides support and reset force for the screen plate through the telescopic rod and the return spring, maintaining the stability of the screen plate and the screening efficiency. The device is easy to operate. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a utility model Figure 1 Left side structural diagram;
[0016] Figure 3 This is a utility model Figure 1 Internal structure diagram;
[0017] Figure 4 This is a utility model Figure 3 Partial structural diagram.
[0018] Explanation of reference numerals in the attached drawings: 1. Base; 2. Support frame; 3. Support seat; 4. Pulley; 5. Rotating disc; 6. Connecting rod; 7. Vertical plate; 8. Inclined rod; 9. Roller; 10. Screening box; 11. Screen plate; 12. First drive motor; 13. Rotating wheel; 14. Belt; 15. Feed inlet; 16. First discharge outlet; 17. Second discharge outlet; 18. Baffle; 19. Telescopic rod; 20. Return spring; 21. Second drive motor; 22. Rotating rod; 23. Elliptical block. Detailed Implementation
[0019] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.
[0020] A device for refining and filtering ultrafine heavy calcium carbonate powder, as described in the reference. Figure 1 - Figure 4 The system includes a base 1, a support frame 2 installed at one top end of the base 1, a support seat 3 installed at the top of the support frame 2, a pulley 4 installed between the inner side walls of the support seat 3, a rotating disk 5 installed on the outside of the support seat 3, a connecting rod 6 installed at the outer edge of the rotating disk 5, two sets of upright plates 7 installed at the top of the base 1, two sets of diagonal bars 8 symmetrically installed between the outer sides of the upright plates 7, a screening box 10 installed at one end of the connecting rod 6, rollers 9 installed at the four corners of the bottom of the screening box 10 and located on the diagonal bars 8, and a screen plate 11 installed inside the screening box 10.
[0021] Reference Figure 1 - Figure 3 A first drive motor 12 is installed on the top of the base 1 and below the support frame 2. A rotating wheel 13 is installed on the output shaft of the first drive motor 12. A belt 14 is installed between the rotating wheel 13 and the pulley 4. When the first drive motor 12 starts, the rotating wheel 13 drives the pulley 4 to rotate through the belt 14, which in turn drives the rotating disk 5 to rotate, realizing the reciprocating swing of the screening box 10. One end of the rotating disk 5 is provided with a rotating shaft connected to the pulley 4. One end of the connecting rod 6 is rotatably connected to the outside of the rotating disk 5, and the end of the connecting rod 6 away from the rotating disk 5 is rotatably connected to the outside of the screening box 10. The outer ring surface of the roller 9 is provided with a groove. The roller 9 rolls on the inclined rod 8 through the external groove. The rotation of the rotating disk 5 drives one end of the connecting rod 6 to move. Since the other end of the connecting rod 6 is connected to the screening box 10, the screening box 10 will move left and right accordingly. The roller 9 rolls in the groove on the inclined rod 8 to ensure that the screening box 10 moves smoothly.
[0022] Reference Figure 3 - Figure 4A second drive motor 21 is installed at one end of the screen box 10. A rotating rod 22 is installed between the wider side walls of the screen box 10 and below the screen plate 11. One end of the rotating rod 22 extends through the outside of the screen box 10 and is connected to the output shaft of the second drive motor 21. Elliptical blocks 23 are symmetrically installed at both ends of the outer ring surface of the rotating rod 22. Baffles 18 are installed on the narrower side walls of the screen box 10, and the heights of the two sets of baffles 18 are not the same. Telescopic rods 19 are symmetrically installed at both ends of the top of the baffles 18. A return spring 20 is installed on the outside of the telescopic rods 19. The top of the telescopic rods 19 is connected to the bottom of the screen plate 11. When the second drive motor 21 is started, the rotating rod 22 drives the elliptical blocks 23 to rotate. Due to the irregular shape of the elliptical blocks 23, periodic impact force is generated, causing the screen plate 11 to vibrate and enhance the screening effect. The baffles 18 provide support and return force for the screen plate 11 through the telescopic rods 19 and the return spring 20, maintaining the stability and screening efficiency of the screen plate 11.
[0023] Reference Figure 3 The top end of the screening box 10 is equipped with a feed inlet 15, and the narrower side of the outer side of the screening box 10 is equipped with a first discharge outlet 16, which is flush with the screen plate 11. The bottom end of the outer side of the screening box 10 is equipped with a second discharge outlet 17. The material enters the screening box 10 through the feed inlet 15, and after being screened by the screen plate 11, the fine powder is discharged through the second discharge outlet 17, while the coarse powder continues to remain on the screen plate 11 and is finally discharged from the first discharge outlet 16 through vibration and oscillation.
[0024] The implementation principle of the ultrafine heavy calcium carbonate powder refining and filtration device in this application embodiment is as follows: When using the device, the material enters the screening box 10 through the feed inlet 15. When the first drive motor 12 starts, the rotating wheel 13 drives the pulley 4 to rotate through the belt 14, which in turn drives the rotating disk 5 to rotate, realizing the reciprocating swing of the screening box 10. The roller 9 rolls in the groove on the inclined rod 8 to ensure the smooth movement of the screening box 10. After being screened by the sieve plate 11, the fine powder is discharged through the second discharge port 17, while the coarse powder continues to remain on the sieve plate 11. Finally, the material is discharged from the first outlet 16 through vibration and oscillation. The reciprocating motion of the screening box 10 prevents the powder from accumulating on the screen plate 11, thus accelerating the screening and filtration efficiency. When the second drive motor 21 is started, the rotating rod 22 drives the elliptical block 23 to rotate. Due to the irregular shape of the elliptical block 23, a periodic impact force is generated, causing the screen plate 11 to vibrate and enhancing the screening effect. The baffle 18 provides support and reset force for the screen plate 11 through the telescopic rod 19 and the return spring 20, maintaining the stability of the screen plate 11 and the screening efficiency, and making operation convenient.
[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0026] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0028] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A device for refining and filtering ultrafine heavy calcium carbonate powder, comprising a base (1), characterized in that: A support frame (2) is installed at one end of the top of the base (1), a support seat (3) is installed at the top of the support frame (2), a pulley (4) is installed between the inner side walls of the support seat (3), a rotating disk (5) is installed on the outside of the support seat (3), a connecting rod (6) is installed at the outer edge of the rotating disk (5), two sets of upright plates (7) are installed at the top of the base (1), two sets of inclined rods (8) are symmetrically installed between the outer sides of the upright plates (7), a screening box (10) is installed at one end of the connecting rod (6), rollers (9) are installed at the four corners of the bottom of the screening box (10) and on the inclined rods (8), and a sieve plate (11) is provided inside the screening box (10).
2. The ultrafine heavy calcium carbonate powder refining and filtration device according to claim 1, characterized in that: A first drive motor (12) is installed on the top of the base (1) and below the support frame (2). A rotating wheel (13) is installed on the output shaft of the first drive motor (12). A belt (14) is installed between the rotating wheel (13) and the outside of the pulley (4).
3. The ultrafine heavy calcium carbonate powder refining and filtration device according to claim 1, characterized in that: One end of the rotating disk (5) is provided with a rotating shaft connected to the pulley (4). One end of the connecting rod (6) is rotatably connected to the outside of the rotating disk (5), and the end of the connecting rod (6) away from the rotating disk (5) is rotatably connected to the outside of the screening box (10). The outer ring surface of the roller (9) is provided with a groove, and the roller (9) rolls on the inclined rod (8) through the external groove.
4. The ultrafine heavy calcium carbonate powder refining and filtration device according to claim 1, characterized in that: The screening box (10) has baffles (18) installed on its narrow inner side walls, and the heights of the two sets of baffles (18) are not the same. Telescopic rods (19) are symmetrically installed at the top two ends of the baffles (18), and a return spring (20) is installed on the outside of the telescopic rods (19). The top of the telescopic rods (19) is connected to the bottom of the sieve plate (11).
5. The ultrafine heavy calcium carbonate powder refining and filtration device according to claim 1, characterized in that: A second drive motor (21) is installed at one end of the outer side of the screening box (10). A rotating rod (22) is installed between the two wider side walls inside the screening box (10) and below the sieve plate (11). One end of the rotating rod (22) passes through the outside of the screening box (10) and is connected to the output shaft of the second drive motor (21). Elliptical blocks (23) are symmetrically installed at both ends of the outer ring surface of the rotating rod (22).
6. The ultrafine heavy calcium carbonate powder refining and filtration device according to claim 1, characterized in that: The top end of the screening box (10) is equipped with a feed inlet (15), the narrower side of the outer side of the screening box (10) is equipped with a first discharge port (16), the first discharge port (16) is flush with the screen plate (11), and the bottom end of the outer side of the screening box (10) is equipped with a second discharge port (17).