Crushing and grinding integrated equipment for producing superfine nano calcium carbonate

Abstract

The invention discloses crushing and grinding integrated equipment for superfine nano calcium carbonate production, and relates to the technical field of grinding and smashing, the crushing and grinding integrated equipment comprises a bottom plate, a rack is arranged on the bottom plate, a driving motor is fixedly arranged on the rack, and a cleaning pipe is arranged on the driving motor; the supporting seat is adjacent to the rack and arranged on the bottom plate, and a discharging opening is formed in the supporting seat; the grinding assembly is arranged on the supporting seat, the grinding assembly comprises a grinding table fixedly arranged on the supporting seat, a grinding groove is formed in the middle position of the grinding table, a grinding plate is movably arranged in the grinding groove, and the feeding assembly is arranged on the grinding assembly; the grinding arm comprises a grinding disc located in the grinding groove and a supporting arm connected with the rack, and the efficient grinding and crushing device is provided for improving the dispersity of nano calcium carbonate; the grinding pressure can be controlled by adjusting the height of the grinding disc, nano calcium carbonate is uniformly dispersed through comprehensive treatment, and better performance is obtained.

Description

Technical Field

[0001] The present application relates to the technical field of grinding and crushing, and particularly relates to an integrated crushing and grinding device for the production of ultrafine nano calcium carbonate. Background Art

[0002] The particle size of nano calcium carbonate is between 1 - 100 nm. Compared with ordinary calcium carbonate, nano calcium carbonate has a special crystal structure and surface electron structure, and has excellent quantum size effect and surface effect. Among them, the carbonization method is the current dominant production process. Nano calcium carbonate is prepared by intermittently bubbling carbon dioxide into lime slurry. During the production process, there are many influencing factors for the crystal form, particle size, and dispersion degree of nano calcium carbonate particles.

[0003] Since nano calcium carbonate particles are prone to agglomeration due to their high surface energy, forming secondary particles or aggregates, which will limit their performance in various applications. Grinding is an effective method to break these aggregates. The agglomerated nano calcium carbonate can be treated by grinding to improve the dispersion, making the nano calcium carbonate particles return to a smaller size and improving their dispersion in the medium.

[0004] However, during the grinding process, the large size difference of the aggregates leads to low direct grinding efficiency. In addition, too high grinding pressure may affect the final performance of nano calcium carbonate. Therefore, a technical solution is needed to improve the grinding efficiency and product quality.

[0005] Therefore, it is necessary to provide an integrated crushing and grinding device for the production of ultrafine nano calcium carbonate to solve the problems raised in the above background art. Summary of the Invention

[0006] To achieve the above object, the present application provides the following technical solution: An integrated crushing and grinding device for the production of ultrafine nano calcium carbonate, comprising: A bottom plate, on which a frame is provided. A driving motor is fixedly arranged on the frame, and a cleaning pipe is arranged on the driving motor; A support seat, adjacent to the frame and arranged on the bottom plate, and a discharge port is arranged on the support seat; A grinding assembly, arranged on the support seat. The grinding assembly includes: a grinding table fixedly arranged on the support seat. A grinding groove is opened at the middle position of the grinding table. A grinding plate is movably arranged in the grinding groove. Feed holes and discharge holes are opened on the side wall of the grinding groove, and a valve is arranged at the discharge hole, and the discharge hole is communicated with the discharge port; A feeding assembly, arranged on the grinding assembly; A grinding arm, including a grinding disc located in the grinding groove and a support arm connected to the frame.

[0007] Further, preferably, the feeding assembly includes: a mixing bin, a feeding head, and a feeding port. The mixing bin is fixedly arranged on the grinding table, and the mixing bin communicates with the grinding groove through the feeding hole. Both the feeding head and the feeding port are arranged on the mixing bin.

[0008] Further, preferably, the mixing bin is located at the edge position of the grinding table, and a plurality of channels are opened inside the grinding table for arranging transmission pipes. The transmission pipes are used to connect the discharge hole and the discharge port, as well as the mixing bin and the feeding hole.

[0009] Further, preferably, the grinding assembly further includes: A fixed disk, which is located inside the grinding table, fixedly arranged on the support seat, and the fixed disk faces the grinding groove; A support plate, coaxially and fixedly arranged on the fixed disk, and a plurality of pressure springs and spring pins are evenly distributed in a circle on the support plate; A movable plate, arranged on the support plate, and the movable plate is supported by the pressure springs and spring pins; A guide plate, fixedly arranged inside the grinding table, and a guide groove and a through hole for sleeving the movable plate are opened in the middle of the guide plate; A adapter, fixedly arranged on the movable plate, for connecting the grinding plate.

[0010] Further, preferably, a plurality of guide rods cooperating with the movable plate are evenly distributed in a circle on the fixed disk for guiding the movable plate during vertical movement; and a plurality of positioning cylinders are also evenly distributed on the support plate for supporting the pressure springs and spring pins.

[0011] Further, preferably, the support plate is an annular plate, and the movable plate is provided with a sleeve cooperating with the support plate extending downward for guiding the movable plate during vertical movement.

[0012] Further, preferably, the grinding arm further includes: a crankshaft, a hinge rod, and a driving rod. The crankshaft is rotatably arranged on the support arm, the driving rod, the hinge rod, and the crankshaft are hinged in sequence, the driving rod is slidably arranged on the support arm, the driving rod is powered by a driving motor to perform reciprocating motion, and the power is converted between the driving rod and the driving motor through a speed reducer and a cam assembly.

[0013] Further, preferably, the grinding disk is connected to the crankshaft in a keyed manner, the grinding disk rotates synchronously with the crankshaft, and the grinding disk can be sleeved on the crankshaft and slide up and down for adjustment.

[0014] Further, as an optimization, the radius of the grinding disc is r, the radius of the grinding groove is R, the axis of rotation of the crankshaft coincides with the axis of the grinding groove, the eccentric distance of the grinding disc is H, and the minimum clearance between the grinding disc and the grinding groove is h.

[0015] Compared with the prior art, the present application provides a crushing and grinding integrated device for producing ultrafine nano calcium carbonate, which has the following beneficial effects: In the present application, on the one hand, the lower end surface of the grinding disc and the grinding plate move relative to each other to grind the nano calcium carbonate therebetween. On the other hand, the side surface of the grinding disc and the side surface of the grinding groove squeeze and crush the agglomerated nano calcium carbonate. During the crushing process, the agglomerated nano calcium carbonate is scraped by the edge of the grinding disc and moves towards the minimum clearance between the grinding disc and the grinding groove to be squeezed and crushed, thereby breaking the agglomeration. At the same time, the stable clearance h can prevent the crystal form and particle size of the nano calcium carbonate from being damaged. The crushed nano calcium carbonate enters between the lower end surface of the grinding disc and the grinding plate for grinding, so that the nano calcium carbonate is further dispersed. In addition, the grinding pressure can be controlled by adjusting the height of the grinding disc. Through comprehensive treatment, the nano calcium carbonate is evenly dispersed and better performance is obtained. Description of the Drawings

[0016] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present application will become more obvious: Figure 1 It is a schematic diagram of the overall structure of a crushing and grinding integrated device for producing ultrafine nano calcium carbonate; Figure 2 It is a schematic diagram of the structure of the feeding component of a crushing and grinding integrated device for producing ultrafine nano calcium carbonate; Figure 3 It is a schematic diagram of the internal structure of the grinding component of a crushing and grinding integrated device for producing ultrafine nano calcium carbonate; Figure 4 It is a schematic diagram of the structure of the grinding arm of a crushing and grinding integrated device for producing ultrafine nano calcium carbonate; Figure 5 It is a schematic diagram of the working principle of the grinding disc of a crushing and grinding integrated device for producing ultrafine nano calcium carbonate; In the figure: 1. Bottom plate; 2. Frame; 3. Driving motor; 4. Cleaning pipe; 5. Support seat; 51. Discharge port; 6. Feeding assembly; 61. Mixing bin; 62. Feeding head; 63. Feeding port; 7. Grinding assembly; 71. Grinding table; 711. Grinding groove; 712. Feeding hole; 713. Discharge hole; 72. Grinding plate; 73. Fixed disk; 731. Guide rod; 74. Support plate; 741. Positioning cylinder; 742. Pressing spring; 743. Spring nail; 75. Guide plate; 751. Guide groove; 76. Movable plate; 77. Adapter; 8. Grinding arm; 81. Support arm; 82. Crankshaft; 83. Grinding disk; 84. Hinge rod; 85. Driving rod. Detailed implementation mode

[0017] Please refer to Figures 1 - 5 , in the embodiment of the present application, a crushing and grinding integrated device for the production of ultrafine nano calcium carbonate includes: A bottom plate 1, on which a frame 2 is arranged. A driving motor 3 is fixedly arranged on the frame 2, and a cleaning pipe 4 is arranged on the driving motor 3. The cleaning pipe 4 is externally connected to cleaning water and can be extended for cleaning later; A support seat 5, adjacent to the frame 2 and arranged on the bottom plate 1, and a discharge port 51 is arranged on the support seat 5; A grinding assembly 7, arranged on the support seat 5. The grinding assembly 7 includes: a grinding table 71 fixedly arranged on the support seat 5. A grinding groove 711 is opened at the middle position of the grinding table 71. A grinding plate 72 is movably arranged in the grinding groove 711. A feeding hole 712 and a discharge hole 713 are opened on the side wall of the grinding groove 711. A valve is arranged at the discharge hole 713, and the discharge hole 713 is communicated with the discharge port 51; A feeding assembly 6, arranged on the grinding assembly 7; A grinding arm 8, including a grinding disk 83 located in the grinding groove 711 and a support arm 81 connected to the frame 2.

[0018] It should be explained that the feeding assembly 6 conveys nano calcium carbonate and dispersant into the grinding groove 711 through the feeding hole 712. The grinding disk 83 rotates eccentrically in the grinding groove 711. During this period, the grinding disk 83 and the grinding groove 711 break and refine the agglomerated nano calcium carbonate, facilitating the grinding of nano calcium carbonate. At the same time, the grinding disk 83 and the grinding plate 72 grind the nano calcium carbonate in the middle. The ground nano calcium carbonate is discharged outwards through the discharge hole 713 and the discharge port 51. Through comprehensive treatment, the nano calcium carbonate is evenly dispersed to obtain better performance.

[0019] In this embodiment, as Figure 2, the feeding assembly 6 includes: a mixing bin 61, a feeding head 62, and a feeding port 63. The mixing bin 61 is fixedly arranged on the grinding table 71, and the mixing bin 61 is communicated with the grinding groove 711 through the feeding hole 712. Both the feeding head 62 and the feeding port 63 are arranged on the mixing bin 61. The feeding head 62 and the feeding port 63 are respectively used for conveying a dispersant and nano calcium carbonate. After the dispersant and nano calcium carbonate are preliminarily mixed in the mixing bin 61, they are conveyed to the grinding groove 711 through the feeding hole 712.

[0020] As a preferred embodiment, the mixing bin 61 is located at the edge position of the grinding table 71, and a plurality of channels are opened inside the grinding table 71 for arranging transmission pipes. The transmission pipes are used to connect the discharge hole 713 and the discharge port 51, as well as the mixing bin 61 and the feeding hole 712.

[0021] In this embodiment, as Figures 2 - 3 , the grinding assembly 7 further includes: A fixed disk 73, located inside the grinding table 71, and the fixed disk 73 is fixedly arranged on the support base 5, and the fixed disk 73 faces the grinding groove 711; A support plate 74, coaxially and fixedly arranged on the fixed disk 73, and a plurality of pressure springs 742 and spring pins 743 are evenly distributed in a circumferential direction on the support plate 74; A movable plate 76, arranged on the support plate 74, and the movable plate 76 is supported by the pressure springs 742 and spring pins 743; A guide plate 75, fixedly arranged inside the grinding table 71, and a guide groove 751 and a through hole for sleeving the movable plate 76 are opened in the middle of the guide plate 75. The movable plate 76 can only slide up and down in the guide groove 751; A swivel joint 77, fixedly arranged on the movable plate 76, for connecting the grinding plate 72.

[0022] It should be noted that during the grinding process of the grinding disk 83 and the grinding plate 72, the grinding plate 72 is pressed, and the pressure springs 742 and spring pins 743 transmit a reverse acting force, correspondingly providing the grinding pressure of nano calcium carbonate between the grinding disk 83 and the grinding plate 72.

[0023] As a preferred embodiment, a plurality of guide rods 731 cooperating with the movable plate 76 are evenly distributed in a circumferential direction on the fixed disk 73 for guiding during the vertical movement of the movable plate 76; and a plurality of positioning cylinders 741 are also evenly distributed on the support plate 74 for supporting the pressure springs 742 and spring pins 743.

[0024] As a preferred embodiment, the support plate 74 is an annular plate, and the movable plate 76 is provided with a sleeve extending downward to cooperate with the support plate 74 for guiding during the vertical movement of the movable plate 76.

[0025] In this embodiment, as Figure 4 , the grinding arm 8 further includes: a crankshaft 82, a hinged rod 84, and a driving rod 85. The crankshaft 82 is rotatably arranged on the support arm 81. The driving rod 85, the hinged rod 84, and the crankshaft 82 are sequentially hinged. The driving rod 85 is slidably arranged on the support arm 81. The driving rod 85 is powered by a driving motor 3 to perform reciprocating motion, and the power is converted between the driving rod 85 and the driving motor 3 through a speed reducer and a cam assembly. The driving rod 85 reciprocates, and drives the crankshaft 82 to rotate through the transmission of the hinged rod 84.

[0026] As a preferred embodiment, the grinding disc 83 is connected to the crankshaft 82 in a keyed manner. The grinding disc 83 rotates synchronously with the crankshaft 82, and the grinding disc 83 can slide up and down sleeving the crankshaft 82 to control a certain distance between the grinding disc 83 and the grinding plate 72 initially, facilitating the entry of nano-calcium carbonate for grinding. In addition, the grinding pressure is controlled by adjusting the height of the grinding disc 83. The deeper the grinding disc 83 penetrates into the grinding groove 711, the higher the grinding pressure borne by the nano-calcium carbonate.

[0027] As a preferred embodiment, the radius of the grinding disc 83 is r, the radius of the grinding groove 711 is R, the axis of rotation of the crankshaft 82 coincides with the axis of the grinding groove 711, the eccentric distance of the grinding disc 83 is H, and the minimum clearance between the grinding disc 83 and the grinding groove 711 is h. The minimum clearance is determined by the size of the nano-calcium carbonate.

[0028] It should be explained that during the working process, on the one hand, the lower end surface of the grinding disc 83 and the grinding plate 72 move relative to each other to grind the nano-calcium carbonate therebetween. On the other hand, the side surface of the grinding disc 83 and the side surface of the grinding groove 711 squeeze and break the agglomerated nano-calcium carbonate. During the breaking process, the agglomerated nano-calcium carbonate moves towards the minimum clearance between the grinding disc 83 and the grinding groove 711 under the scraping of the edge of the grinding disc 83 and is squeezed and broken, thereby breaking the agglomeration. At the same time, the stable clearance h can avoid the destruction of the crystal form and particle size of the nano-calcium carbonate. The broken nano-calcium carbonate enters between the lower end surface of the grinding disc 83 and the grinding plate 72 for grinding, making the nano-calcium carbonate further dispersed.

[0029] In the specific implementation, the feed head 62 and the feed port 63 convey the dispersant and the nano-calcium carbonate in the mixing bin 61 for preliminary mixing, and then the dispersant and the nano-calcium carbonate are conveyed to the grinding groove 711 through the feed hole 712; the grinding disc 83 and the grinding plate 72 initially maintain a certain distance to facilitate the entry of the nano-calcium carbonate for grinding, and the grinding disc 83 rotates eccentrically in the grinding groove 711, during which the grinding disc 83 and the grinding groove 711 crush and refine the agglomerated nano-calcium carbonate to facilitate the grinding of the nano-calcium carbonate. At the same time, the grinding disc 83 and the grinding plate 72 grind the nano-calcium carbonate mixed in the middle, and the height of the grinding disc 83 is adjusted according to the required grinding pressure. The ground nano-calcium carbonate is discharged outward through the discharge hole 713 and the discharge port 51.

[0030] What has been described above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and application concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. An integrated crushing and grinding device for producing ultrafine nano calcium carbonate, characterized in that: include: A bottom plate (1) is provided with a frame (2) on which a driving motor (3) is fixedly provided, and a cleaning pipe (4) is provided on the driving motor (3); A support seat (5) adjacent to the frame (2) and arranged on the bottom plate (1), and a discharge port (51) is arranged on the support seat (5); A grinding assembly (7) is arranged on the support seat (5), the grinding assembly (7) comprising: a grinding table (71) fixedly arranged on the support seat (5), a grinding groove (711) being provided at a middle position of the grinding table (71), a grinding plate (72) being movably arranged in the grinding groove (711), a feed hole (712) and a discharge hole (713) being provided on a side wall of the grinding groove (711), the discharge hole (713) being provided with a valve, and the discharge hole (713) being communicated with the discharge port (51); A feeding assembly (6) arranged on the grinding assembly (7); A grinding arm (8) comprises a grinding disc (83) located in the grinding groove (711), and a support arm (81) connected to the frame (2).

2. The crushing and grinding integrated equipment for producing ultrafine nano calcium carbonate according to claim 1, characterized in that: The feeding assembly (6) comprises: a mixing bin (61), a feeding head (62) and a feeding port (63); the mixing bin (61) is fixedly arranged on the grinding table (71), and the mixing bin (61) is connected to the grinding tank (711) through the feeding hole (712); the feeding head (62) and the feeding port (63) are both arranged on the mixing bin (61).

3. A crushing and grinding integrated equipment for producing ultrafine nano calcium carbonate according to claim 2, characterized in that, The mixing bin (61) is located at the edge of the grinding table (71), and a plurality of channels are provided inside the grinding table (71) for accommodating transmission pipes, wherein the transmission pipes are used to connect the discharge hole (713) and the discharge port (51), as well as the mixing bin (61) and the feed hole (712).

4. The integrated crushing and grinding equipment for producing ultrafine nano calcium carbonate according to claim 1, characterized in that: The grinding assembly (7) further comprises: A fixed plate (73) is located inside the grinding table (71), and the fixed plate (73) is fixedly arranged on the support seat (5), and the fixed plate (73) faces the grinding groove (711); A support plate (74) is coaxially fixedly disposed on the fixed disk (73), and a plurality of pressure springs (742) and spring pins (743) are evenly distributed on the circumference of the support plate (74); A movable plate (76) is disposed on the support plate (74), and the movable plate (76) is supported by the pressure spring (742) and the spring pin (743); A guide plate (75) is fixedly arranged in the grinding table (71), and a guide groove (751) and a through hole for sleeve-connecting the movable plate (76) are provided in the middle of the guide plate (75); An adapter (77) is fixedly disposed on the movable plate (76) and is used for connecting to the grinding plate (72).

5. The integrated crushing and grinding equipment for producing ultrafine nano calcium carbonate according to claim 4, characterized in that: The fixed plate (73) is evenly distributed around its circumference with a plurality of guide rods (731) cooperating with the movable plate (76) for guiding the movable plate (76) during its vertical movement; and the support plate (74) is also evenly distributed with a plurality of positioning cylinders (741) for supporting the pressure spring (742) and the spring pin (743).

6. The integrated crushing and grinding equipment for producing ultrafine nano calcium carbonate according to claim 5, characterized in that: The support plate (74) is an annular plate, and the movable plate (76) is provided with a sleeve extending downwardly and matching with the support plate (74) for guiding the movable plate (76) during vertical movement.

7. The integrated crushing and grinding equipment for producing ultrafine nano calcium carbonate according to claim 1, characterized in that: The grinding arm (8) further comprises: a crankshaft (82), an articulated rod (84) and a driving rod (85); the crankshaft (82) is rotatably arranged on the support arm (81); the driving rod (85), the articulated rod (84) and the crankshaft (82) are hinged in sequence; the driving rod (85) is slidably arranged on the support arm (81); the driving rod (85) is powered by a driving motor (3) to perform reciprocating motion; and power conversion is performed between the driving rod (85) and the driving motor (3) via a reducer and a cam assembly.

8. The integrated crushing and grinding equipment for producing ultrafine nano calcium carbonate according to claim 7, characterized in that: The grinding disc (83) is connected to the crankshaft (82) in a keyed manner, the grinding disc (83) and the crankshaft (82) rotate synchronously, and the grinding disc (83) can be sleeved on the crankshaft (82) to slide up and down for adjustment.

9. The integrated crushing and grinding equipment for producing ultrafine nano calcium carbonate according to claim 8, characterized in that: The radius of the grinding disc (83) is r, the radius of the grinding groove (711) is R, the rotation axis of the crankshaft (82) coincides with the axis of the grinding groove (711), the eccentric spacing of the grinding disc (83) is H, and the minimum gap between the grinding disc (83) and the grinding groove (711) is h.

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