A stirring type nano calcium carbonate preparation equipment

Abstract

The application belongs to the technical field of preparation equipment, and discloses a stirring type nano calcium carbonate preparation equipment, which comprises a tank body in a cylindrical barrel structure and provided with a discharging structure, a water injection pipe is arranged on the side wall of the tank body, an automatic rotating and coaxial screen drum is rotatably arranged on the inner top wall of the tank body, a plurality of screen holes in uniform distribution are arranged on the surface of the screen drum, a hopper in communication with the screen drum is fixed to the top of the tank body, a discharging pipe capable of automatically opening and closing the internal passage is fixed and communicated to the bottom of the screen drum, and stirring blades are arranged on the side wall of the discharging pipe. According to the application, the existing structure is improved, the screening and stirring of the raw materials are integrated, the complicated operation of transporting the screened raw materials to the preparation equipment and putting them into the preparation equipment is not needed, time is saved, and the overall processing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of preparation equipment technology, and in particular to a stirring-type nano-calcium carbonate preparation equipment. Background Technology

[0002] Nano-calcium carbonate is an important inorganic functional filler widely used in plastics, rubber, coatings, inks, papermaking, and other fields. Its preparation process typically includes limestone calcination, quicklime digestion, lime milk refining, carbonation reaction, dehydration, drying, and post-treatment.

[0003] In existing technologies, the screening and digestion of quicklime are carried out in separate equipment. After screening, the qualified quicklime needs to be removed from the screening equipment and transferred to the digestion equipment via conveying equipment, where it is then added and mixed with water. This transfer process involves multiple operations such as loading and unloading, feeding, etc., which is cumbersome, labor-intensive, and the transfer time accounts for a high proportion of the entire preparation cycle, seriously affecting production efficiency. Summary of the Invention

[0004] To address the above problems, this invention provides a stirred nano-calcium carbonate preparation device.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a stirring nano-calcium carbonate preparation device, comprising a tank with a cylindrical structure and a discharge structure, a water injection pipe provided on the side wall of the tank, a sieve cylinder that can automatically rotate and is coaxially arranged with the tank body rotatably installed on the top wall of the tank body, a plurality of uniformly distributed sieve holes being provided through the surface of the sieve cylinder, a hopper communicating with the inside of the sieve cylinder being fixed on the top of the tank body, a discharge pipe that can automatically open and close the internal channel being fixed and communicated with the bottom of the sieve cylinder, and stirring blades being provided on the side wall of the discharge pipe.

[0006] By adopting the above technical solution, raw materials are first injected into the screening cylinder through the hopper. At the same time, the screening cylinder rotates to screen the raw materials. Qualified raw materials will enter the tank through the screening holes of the screening cylinder and fall to the inner bottom wall of the tank. In addition, clean water is injected into the bottom wall of the tank through the water injection pipe and mixed with the raw materials. The rotating screening cylinder drives the discharge pipe and the stirring blades connected to the discharge pipe to rotate, stirring and mixing the clean water and raw materials. After the mixing is completed, the material is discharged by the discharge structure of the tank. This realizes the integrated operation of screening and stirring of raw materials. It eliminates the cumbersome operation of transferring the screened raw materials to the preparation equipment after screening and feeding them into the preparation equipment, which is necessary in the existing technology. This saves time and helps to improve the overall processing efficiency.

[0007] Furthermore, the tank body is provided with a rotating mechanism, which includes an outer gear ring fixedly sleeved on the screening cylinder, a drive housing fixed to the top of the tank body with a hollow structure and an open bottom, a rotating gear rotatably installed inside the tank body and meshing with the outer gear ring, a motor fixed to the drive housing and driving the rotating gear to rotate, and a protective shell fixed to the top wall of the tank body. The hopper passes through the top of the drive housing and is fixedly connected to the drive housing. The output end of the motor passes through the top of the drive housing and the top of the tank body in sequence. The screening cylinder passes through the bottom of the protective shell and is rotatably connected to the protective shell through a rotating shaft seal. The outer gear ring and the rotating gear are both located inside the protective shell. The screening holes provided on the screening cylinder are located below the protective shell.

[0008] Furthermore, the tank body is provided with an auxiliary mechanism, which includes an auxiliary component. The auxiliary component includes a drive pipe that runs through the top of the tank body and is rotatably connected to the tank body through a rotating shaft seal and is coaxially arranged with the screening cylinder, a stirring rod fixed to the side wall of the drive pipe, two sprockets that are respectively fixedly sleeved on the output end of the motor and the drive pipe, and a chain that meshes with both sprockets. The upper end of the drive pipe is rotatably connected to the inner top wall of the drive housing. The auxiliary mechanism also includes a sealing component for blocking the channel inside the discharge pipe during screening in the screening cylinder.

[0009] By adopting the above technical solution, when the motor is working, it drives the sprocket fixed to the output end of the motor, the chain meshing with the sprocket, another sprocket meshing with the chain, the drive tube fixed to the other sprocket, and the stirring rod fixed to the drive tube to rotate. Since the stirring rod rotates in the opposite direction to the screening cylinder, the stirring rod stirs and breaks up the lumpy raw materials in the screening cylinder, ensuring that the raw materials are fully screened.

[0010] Furthermore, the sealing assembly includes a drive rod that passes through the drive tube coaxially, a sealing block fixed to the lower end of the drive rod, a drive bar fixed to the side wall of the drive rod, a mounting bracket fixed to the top of the drive housing, and a hydraulic push rod fixed to the mounting bracket. The upper ends of the drive bar and the drive rod pass through the top of the drive housing and are slidably engaged. The telescopic end of the hydraulic push rod is rotatably connected to the upper end of the drive rod and is coaxially arranged. The sealing block passes through the discharge pipe and engages with it. The inner wall of the drive tube is provided with a drive groove that slidably engages with the drive bar.

[0011] By adopting the above technical solution, after the overall work is completed, the hydraulic push rod works to retract its telescopic end, which drives the drive rod fixed to the telescopic end of the hydraulic push rod, the sealing block fixed to the drive rod, and the drive bar fixed to the drive rod to rise. When the telescopic end of the hydraulic push rod retracts to the minimum stroke, the sealing block separates from the discharge pipe, and at this time, the impurities remaining in the screening cylinder can be discharged from the discharge pipe.

[0012] Furthermore, the auxiliary mechanism also includes a discharge assembly, which includes a discharge pipe fixed and connected to the bottom of the tank, a connecting rod fixed to the bottom of the sealing block and coaxially arranged with the sealing block, a spiral blade one fixedly sleeved on the connecting rod and located inside the discharge pipe, and a spiral blade two fixedly sleeved on the connecting rod and located inside the discharge pipe. An electrically controlled valve is provided on the discharge pipe to open and close the channel inside the discharge pipe.

[0013] By adopting the above technical solution, during the rotation of the sealing block, the connecting rod fixed to the sealing block and the spiral blade fixed to the connecting rod also rotate. The rotating spiral blade can evenly discharge the residual impurities after screening through the discharge pipe. The rotation of the connecting rod can drive the spiral blade to rotate, thus evenly discharging the mixed product from the tank through the discharge pipe.

[0014] Furthermore, the stirring blade is rotatably mounted on the side wall of the discharge pipe, and a driving mechanism is provided on the tank body. The driving mechanism includes a transmission assembly, which includes a drive shaft fixed to the side wall of the stirring blade away from the discharge pipe, two annular plates fixed to the inner wall of the tank body and coaxially arranged with the tank body, and an annular plate 2 rotatably mounted between the two annular plates and coaxially arranged with the annular plates via a rotating shaft seal. The drive shaft passes through the side wall of the annular plate 2 and is rotatably connected to the annular plate 2 via a rotating shaft seal. The driving mechanism also includes a driving component for driving the drive shaft to rotate.

[0015] By adopting the above technical solution, the drive component works to drive the drive shaft to rotate, which in turn drives the stirring blades connected to the drive shaft to rotate and mix the materials.

[0016] Furthermore, the drive assembly includes a bevel gear one fixedly sleeved on the drive shaft and located between two annular plates, and a bevel gear two fixed between the two annular plates and coaxially arranged with the annular plates and kept stationary, wherein the bevel gear one meshes with the bevel gear two.

[0017] By adopting the above technical solution, the rotation of the discharge pipe drives the rotation of the stirring blade, which in turn drives the drive shaft connected to the stirring blade and the annular plate connected to the drive shaft to rotate around the axis of the discharge pipe. This causes the bevel gear one meshing with the bevel gear two, the drive shaft fixed to the bevel gear one, and the stirring blade connected to the drive shaft to rotate around the drive shaft, achieving multi-directional stirring and improving the mixing effect.

[0018] Furthermore, a screening box is fixed to the bottom of the tank, and a protrusion is provided on the screening box. The discharge pipe passes through the protrusion of the screening box and is fixedly connected to the screening box. An inclined filter cylinder is installed through the side wall of the screening box. Filter holes are installed through the side wall of the filter cylinder located inside the screening box. The bottom of the screening box is fixed and connected to a discharge pipe. A connecting pipe is connected to the end of the filter cylinder near the tank. The lower end of the discharge pipe extends into the connecting pipe.

[0019] By adopting the above technical solution, the product in the discharge pipe flows to the connecting pipe, and then is discharged into the filter cartridge through the connecting pipe. Qualified products will be discharged into the screening box through the filter holes of the filter cartridge and discharged through the discharge pipe, while impurities in the product will be discharged from the end of the filter cartridge away from the tank, which helps to improve the purity of the product.

[0020] Furthermore, the filter cartridge is rotatably connected to the screening box, and a mounting shell is fixed on the side wall of the screening box. The filter cartridge passes through the side wall of the mounting shell and is rotatably connected to the mounting shell. The connecting pipe is fixed on the side wall of the mounting shell. The end of the filter cartridge near the connecting pipe is rotatably connected to the connecting pipe and coaxially arranged. The inner diameter of the connecting pipe is equal to the inner diameter of the filter cartridge. A second motor is fixed on the mounting shell. An external gear ring II located inside the mounting shell is fixedly sleeved on the filter cartridge. A rotating gear that meshes with the external gear ring II is rotatably installed inside the mounting shell. The second motor drives the rotating gear to rotate.

[0021] By adopting the above technical solution, the second motor drives the rotating gear to rotate, which in turn drives the second outer gear ring meshing with the rotating gear and the filter cylinder fixed to the second outer gear ring to rotate. The rotating screening cylinder can improve the screening and filtration speed of the product.

[0022] Furthermore, a metal ring is rotatably fitted on the sealing block, and an annular gasket is fixedly fitted on the metal ring. The annular gasket is made of corrosion-resistant and high-temperature-resistant material, and the sidewall of the annular gasket abuts against the inner wall of the discharge pipe.

[0023] By adopting the above technical solution, the annular gasket improves the sealing performance between the sealing block and the inner wall of the discharge pipe. The metal ring is rotatably connected to the sealing block, reducing frictional loss between the annular gasket and the inner wall of the discharge pipe when the sealing block rotates.

[0024] In summary, the present invention has the following beneficial effects: In this application, by improving the existing structure, the operation of screening and stirring of raw materials is integrated, eliminating the need for the cumbersome operation of transferring the screened raw materials to the preparation equipment after screening and putting them into the preparation equipment, thus saving time and improving the overall processing efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present invention; Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present invention used to highlight the internal structure of the tank; Figure 4 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between annular plate one and annular plate two; Figure 5 This is a schematic diagram illustrating the connection structure between the drive tube and the drive rod in an embodiment of the present invention; Figure 6 This is an exploded view of an embodiment of the present invention to highlight the connection structure between the drive tube and the drive rod; Figure 7 This is a cross-sectional schematic diagram of an embodiment of the present invention used to highlight the internal structure of the mounting shell.

[0026] In the diagram: 1. Tank; 2. Screening cylinder; 3. Hopper; 4. Discharge pipe; 5. Agitator blade; 6. Rotating mechanism; 61. External gear ring 1; 62. Drive housing; 63. Rotary gear; 64. Motor 1; 65. Protective housing; 7. Auxiliary mechanism; 71. Auxiliary components; 711. Drive pipe; 712. Agitator rod; 713. Sprocket; 714. Chain; 72. Sealing assembly; 721. Drive rod; 722. Sealing block; 723. Drive bar; 724. Mounting bracket; 725. Hydraulic push rod; 726. Drive groove; 73. Discharge assembly; 731. Discharge pipe; 732. Connecting rod; 733. Spiral blade one; 734. Spiral blade two; 8. Drive mechanism; 81. Transmission assembly; 811. Drive shaft; 812. Annular plate one; 813. Annular plate two; 82. Drive assembly; 821. Bevel gear one; 822. Bevel gear two; 9. Screening box; 10. Filter cartridge; 11. Discharge pipe; 12. Mounting shell; 13. Connecting pipe; 14. Motor two; 15. External gear ring two; 16. Rotating gear; 17. Metal ring; 18. Annular pad. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] like Figure 1-7As shown in the illustration, this application discloses a stirred nano-calcium carbonate preparation device, including a tank 1, a rotating mechanism 6, an auxiliary mechanism 7, and a driving mechanism 8. The tank 1 has a cylindrical structure and a discharge structure. A water injection pipe is provided on the side wall of the tank 1, and a sieve cylinder 2 that can rotate automatically and is coaxially arranged with the tank 1 is rotatably installed on the top wall of the tank 1. Multiple evenly distributed sieve holes are provided through the surface of the sieve cylinder 2, and a hopper 3 that communicates with the inside of the sieve cylinder 2 is fixed to the top of the tank 1. A discharge pipe 4 that can automatically open and close the internal channel is fixed to the bottom of the sieve cylinder 2, and stirring blades 5 are provided on the side wall of the discharge pipe 4. First, raw materials are injected into the screening cylinder 2 through the hopper 3. At the same time, the screening cylinder 2 rotates to screen the raw materials. Qualified raw materials will enter the tank 1 through the screening holes of the screening cylinder 2 and fall to the inner bottom wall of the tank 1. In addition, clean water is injected into the inner bottom wall of the tank 1 through the water injection pipe and mixed with the raw materials. The rotating screening cylinder 2 drives the discharge pipe 4 and the stirring blade 5 connected to the discharge pipe 4 to rotate, stirring and mixing the clean water and raw materials. After the mixing is completed, the material is discharged by the discharge structure of the tank 1. This realizes the integrated operation of screening and stirring of raw materials. It eliminates the cumbersome operation of transferring the screened raw materials to the preparation equipment after screening and feeding them into the preparation equipment, which is necessary in the existing technology. This saves time and helps to improve the overall processing efficiency.

[0029] A rotating mechanism 6 is mounted on the tank body 1. The rotating mechanism 6 includes an external gear ring 61, a drive housing 62, a rotating gear 63, a motor 64, and a protective housing 65. The external gear ring 61 is fixedly fitted onto the screening cylinder 2. The drive housing 62 is fixed to the top of the tank body 1 and has a hollow structure with an open bottom. The hopper 3 penetrates the top of the drive housing 62 and is fixedly connected to it. The rotating gear 63 is rotatably mounted inside the tank body 1 and meshes with the external gear ring 61. The output end of the motor 64 passes sequentially through the top of the drive housing 62 and the top of the tank body 1. The motor 64 is fixed to the drive housing 62 and drives the rotating gear 63 to rotate. The protective housing 65 is fixed to the inner top wall of the tank body 1. The screening cylinder 2 penetrates the bottom of the protective housing 65 and is rotatably connected to it via a rotating shaft seal. Both the external gear ring 61 and the rotating gear 63 are located inside the protective housing 65. The screening holes on the screening cylinder 2 are located below the protective housing 65. When the motor 64 operates, it drives the rotating gear 63 to rotate, which in turn drives the outer gear ring 61 that meshes with the rotating gear 63 and the screening cylinder 2 that is fixed to the outer gear ring 61 to rotate. The rotating screening cylinder 2 can speed up the screening process.

[0030] Auxiliary mechanism 7 is installed on tank body 1, and includes auxiliary component 71, sealing component 72, and discharge component 73. Auxiliary component 71 includes drive pipe 711, stirring rod 712, sprocket 713, and chain 714. Drive pipe 711 is installed through the top of tank body 1 and is rotatably connected to tank body 1 via a rotating shaft seal and is coaxially arranged with screening cylinder 2. The upper end of drive pipe 711 is rotatably connected to the inner top wall of drive housing 62, and stirring rod 712 is fixed to the side wall of drive pipe 711. There are two sprockets 713, which are respectively fixedly sleeved on the output end of motor 64 and drive pipe 711, and chain 714 meshes with both sprockets 713. When motor 64 is working, it drives the sprocket 713 fixed to the output end of motor 64, the chain 714 meshing with the sprocket 713, another sprocket 713 meshing with the chain 714, the drive tube 711 fixed to the other sprocket 713, and the stirring rod 712 fixed to the drive tube 711 to rotate. Since the stirring rod 712 rotates in the opposite direction to the sieve cylinder 2, the stirring rod 712 stirs and breaks up the clumps of raw materials in the sieve cylinder 2, ensuring that the raw materials are fully sieved.

[0031] The sealing assembly 72 is used to block the inner channel of the discharge pipe 4 during screening in the screening cylinder 2. The sealing assembly 72 includes a drive rod 721, a sealing block 722, a drive strip 723, a mounting bracket 724, and a hydraulic push rod 725. The drive rod 721 passes through the drive tube 711 coaxially, and the sealing block 722 is fixed to the lower end of the drive rod 721. The sealing block 722 is inserted into the discharge pipe 4 and engages with it. The drive strip 723 is fixed to the side wall of the drive rod 721. The inner wall of the drive tube 711 has a drive groove 726 that slides with the drive strip 723. The upper ends of the drive strip 723 and the drive rod 721 pass through the top of the drive housing 62 and slide with it. The mounting bracket 724 is fixed to the top of the drive housing 62. The hydraulic push rod 725 is fixed to the mounting bracket 724, and the telescopic end of the hydraulic push rod 725 is rotatably connected to the upper end of the drive rod 721 and coaxially arranged. After the overall operation is completed, the hydraulic push rod 725 retracts its telescopic end, which drives the drive rod 721 fixed to the telescopic end of the hydraulic push rod 725, the sealing block 722 fixed to the drive rod 721, and the drive bar 723 fixed to the drive rod 721 to rise. When the telescopic end of the hydraulic push rod 725 retracts to its minimum stroke, the sealing block 722 separates from the discharge pipe 4, and the impurities remaining in the screening cylinder 2 can be discharged from the discharge pipe 4.

[0032] The discharge assembly 73 includes a discharge pipe 731, a connecting rod 732, a first spiral blade 733, and a second spiral blade 734. The discharge pipe 731 is fixed and connected to the bottom of the tank 1, and an electrically controlled valve is installed on the discharge pipe 731 to open and close the internal passage of the discharge pipe 731. The connecting rod 732 is fixed to the bottom of the sealing block 722 and is coaxially arranged with the sealing block 722. The first spiral blade 733 is fixedly sleeved on the connecting rod 732 and located inside the discharge pipe 4, and the second spiral blade 734 is fixedly sleeved on the connecting rod 732 and located inside the discharge pipe 731. During the rotation of the sealing block 722, the connecting rod 732 and the first spiral blade 733 fixed to the connecting rod 732 are driven to rotate. The rotating first spiral blade 733 can evenly discharge the residual impurities after screening from the discharge pipe 4. The rotation of connecting rod 732 can drive the spiral blade 734 to rotate, so that the mixed product can be evenly discharged from tank 1 through drain pipe 731.

[0033] The stirring blade 5 is rotatably mounted on the side wall of the discharge pipe 4. The drive mechanism 8 is mounted on the tank body 1 and includes a transmission assembly 81 and a drive assembly 82. The transmission assembly 81 includes a drive shaft 811, a first annular plate 812, and a second annular plate 813. The drive shaft 811 is fixed to the side wall of the stirring blade 5 away from the discharge pipe 4. There are two first annular plates 812, which are fixed to the inner wall of the tank body 1 and coaxially arranged with the tank body 1. The second annular plate 813 is rotatably mounted between the two first annular plates 812 via a rotating shaft seal and is coaxially arranged with the first annular plates 812. The drive shaft 811 passes through the side wall of the second annular plate 813 and is rotatably connected to the second annular plate 813 via the rotating shaft seal. The operation of the drive assembly 82 drives the drive shaft 811 to rotate, thereby driving the stirring blade 5 connected to the drive shaft 811 to rotate and mixing the materials.

[0034] The drive assembly 82 is used to drive the drive shaft 811 to rotate. The drive assembly 82 includes a first bevel gear 821 and a second bevel gear 822. The first bevel gear 821 is fixedly sleeved on the drive shaft 811 and located between two annular plates 812. The second bevel gear 822 is fixed between the two annular plates 812 and is coaxially arranged with the annular plates 812 and remains stationary. The first bevel gear 821 and the second bevel gear 822 mesh. The rotation of the discharge pipe 4 drives the stirring blade 5 to rotate, which in turn drives the drive shaft 811 connected to the stirring blade 5 and the second annular plate 813 connected to the drive shaft 811 to rotate around the axis of the discharge pipe 4. This causes the first bevel gear 821 meshing with the second bevel gear 822, the drive shaft 811 fixed to the first bevel gear 821, and the stirring blade 5 connected to the drive shaft 811 to rotate around the drive shaft 811, realizing multi-directional stirring and improving the mixing effect.

[0035] A screening box 9 is fixed to the bottom of the tank 1, and the screening box 9 has a protrusion. A discharge pipe 731 passes through the protrusion of the screening box 9 and is fixedly connected to the screening box 9. An inclined filter cylinder 10 is installed through the side wall of the screening box 9. Filter holes are installed through the side wall of the filter cylinder 10 inside the screening box 9. A discharge pipe 11 is fixed to and connected to the bottom of the screening box 9. A connecting pipe 13 is connected to the end of the filter cylinder 10 near the tank 1, and the lower end of the discharge pipe 731 extends into the connecting pipe 13. The product in the discharge pipe 731 flows to the connecting pipe 13, and then is discharged into the filter cylinder 10. Qualified products are discharged into the screening box 9 through the filter holes of the filter cylinder 10 and discharged through the discharge pipe 11, while impurities in the product are discharged from the end of the filter cylinder 10 away from the tank 1, which helps to improve the purity of the product.

[0036] The filter cylinder 10 is rotatably connected to the screening box 9, and a mounting shell 12 is fixed to the side wall of the screening box 9. The filter cylinder 10 passes through the side wall of the mounting shell 12 and is rotatably connected to the mounting shell 12. The connecting pipe 13 is fixed to the side wall of the mounting shell 12. The end of the filter cylinder 10 near the connecting pipe 13 is rotatably connected to the connecting pipe 13 and is coaxially arranged. The inner diameter of the connecting pipe 13 is equal to the inner diameter of the filter cylinder 10. A motor 14 is fixed on the mounting shell 12, and an external gear ring 15 located inside the mounting shell 12 is fixedly sleeved on the filter cylinder 10. A rotating gear 16 that meshes with the external gear ring 15 is rotatably installed inside the mounting shell 12. The motor 14 drives the rotating gear 16 to rotate. The operation of the motor 14 drives the rotating gear 16 to rotate, which in turn drives the external gear ring 15 that meshes with the rotating gear 16 and the filter cylinder 10 that is fixed to the external gear ring 15 to rotate. The rotating screening cylinder 2 can improve the screening and filtration speed of the product.

[0037] A metal ring 17 is rotatably fitted onto the sealing block 722, and an annular gasket 18 is fixedly fitted onto the metal ring 17. The annular gasket 18 is made of corrosion-resistant and high-temperature-resistant material, and its sidewall abuts against the inner wall of the discharge pipe 4. The annular gasket 18 improves the sealing performance between the sealing block 722 and the inner wall of the discharge pipe 4. The rotatable connection between the metal ring 17 and the sealing block 722 reduces frictional loss between the annular gasket 18 and the inner wall of the discharge pipe 4 when the sealing block 722 rotates.

[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A stirred nano-calcium carbonate preparation device, characterized in that: The tank includes a tank body (1), a water injection pipe is provided on the side wall of the tank body (1), a sieve cylinder (2) that can rotate automatically and is coaxial with the tank body (1) is rotatably installed on the top wall of the tank body (1), a plurality of sieve holes are provided through the surface of the sieve cylinder (2), a hopper (3) that communicates with the inside of the sieve cylinder (2) is fixed on the top of the tank body (1), and a discharge pipe (4) that can automatically open and close the internal channel is fixed and connected to the bottom of the sieve cylinder (2), and a stirring blade (5) is provided on the side wall of the discharge pipe (4).

2. The stirred nano-calcium carbonate preparation device according to claim 1, characterized in that: The tank (1) is provided with a rotating mechanism (6), which includes an external gear ring (61) fixedly sleeved on the screening cylinder (2), a drive housing (62) fixed to the top of the tank (1) and having a hollow structure with an open bottom, a rotating gear (63) rotatably installed inside the tank (1) and meshing with the external gear ring (61), a motor (64) fixed to the drive housing (62) and driving the rotating gear (63) to rotate, and a protective shell (65) fixed to the inner top wall of the tank (1). The hopper (3) passes through the top of the drive housing (62) and is fixedly connected to the drive housing (62). The output end of the motor (64) passes through the top of the drive housing (62) and the top of the tank (1) in sequence. The screening cylinder (2) passes through the bottom of the protective shell (65) and is rotatably connected to the protective shell (65) through a rotating shaft seal. The external gear ring (61) and the rotating gear (63) are both located inside the protective shell (65). The screening holes provided on the screening cylinder (2) are located below the protective shell (65).

3. The stirred nano-calcium carbonate preparation device according to claim 2, characterized in that: The tank (1) is provided with an auxiliary mechanism (7), which includes an auxiliary component (71). The auxiliary component (71) includes a drive pipe (711) that runs through the top of the tank (1) and is rotatably connected to the tank (1) through a rotating shaft seal and is coaxial with the screening cylinder (2), a stirring rod (712) fixed on the side wall of the drive pipe (711), two sprockets (713) that are respectively fixedly sleeved on the output end of the motor (64) and the drive pipe (711), and a chain (714) that meshes with both sprockets (713). The upper end of the drive pipe (711) is rotatably connected to the inner top wall of the drive housing (62). The auxiliary mechanism (7) also includes a sealing component (72) for blocking the inner channel of the discharge pipe (4) during screening in the screening cylinder (2).

4. The stirred nano-calcium carbonate preparation device according to claim 3, characterized in that: The sealing assembly (72) includes a drive rod (721) that passes through the drive tube (711) coaxially, a sealing block (722) fixed to the lower end of the drive rod (721), a drive bar (723) fixed to the side wall of the drive rod (721), a mounting bracket (724) fixed to the top of the drive housing (62), and a hydraulic push rod (725) fixed to the mounting bracket (724). The upper ends of the drive bar (723) and the drive rod (721) pass through the top of the drive housing (62) and slide together. The telescopic end of the hydraulic push rod (725) is rotatably connected to the upper end of the drive rod (721) and coaxially arranged. The sealing block (722) passes into the discharge pipe (4) and fits together. The inner wall of the drive tube (711) is provided with a drive groove (726) that slides together with the drive bar (723).

5. The stirred nano-calcium carbonate preparation device according to claim 4, characterized in that: The auxiliary mechanism (7) further includes a discharge assembly (73), which includes a discharge pipe (731) fixed and connected to the bottom of the tank (1), a connecting rod (732) fixed to the bottom of the sealing block (722) and coaxially arranged with the sealing block (722), a spiral blade one (733) fixedly sleeved on the connecting rod (732) and located in the discharge pipe (4), and a spiral blade two (734) fixedly sleeved on the connecting rod (732) and located in the discharge pipe (731). An electric control valve is provided on the discharge pipe (731) to open and close the channel inside the discharge pipe (731).

6. The stirred nano-calcium carbonate preparation device according to claim 1, characterized in that: The stirring blade (5) is rotatably mounted on the side wall of the discharge pipe (4). The tank (1) is provided with a drive mechanism (8). The drive mechanism (8) includes a transmission assembly (81). The transmission assembly (81) includes a drive shaft (811) fixed to the side wall of the stirring blade (5) away from the discharge pipe (4), two annular plates (812) fixed to the inner wall of the tank (1) and coaxially arranged with the tank (1), and an annular plate (813) rotatably mounted between the two annular plates (812) and coaxially arranged with the annular plates (812) through a rotating shaft seal. The drive shaft (811) passes through the side wall of the annular plate (813) and is rotatably connected to the annular plate (813) through a rotating shaft seal. The drive mechanism (8) also includes a drive assembly (82) for driving the drive shaft (811) to rotate.

7. The stirred nano-calcium carbonate preparation device according to claim 6, characterized in that: The drive assembly (82) includes a bevel gear one (821) fixedly sleeved on the drive shaft (811) and located between two annular plates one (812), and a bevel gear two (822) fixed between the two annular plates one (812) and coaxially arranged with the annular plates one (812) and kept stationary. The bevel gear one (821) meshes with the bevel gear two (822).

8. The stirred nano-calcium carbonate preparation device according to claim 5, characterized in that: A screening box (9) is fixed to the bottom of the tank (1). The screening box (9) has a protrusion. The discharge pipe (731) passes through the protrusion of the screening box (9) and is fixedly connected to the screening box (9). A filter cylinder (10) is installed on the side wall of the screening box (9) at an incline. The filter cylinder (10) has filter holes installed on the side wall inside the screening box (9). The bottom of the screening box (9) is fixed and connected to a discharge pipe (11). The end of the filter cylinder (10) near the tank (1) is connected to a connecting pipe (13). The lower end of the discharge pipe (731) extends into the connecting pipe (13).

9. The stirred nano-calcium carbonate preparation device according to claim 8, characterized in that: The filter cylinder (10) is rotatably connected to the screening box (9). A mounting shell (12) is fixed on the side wall of the screening box (9). The filter cylinder (10) passes through the side wall of the mounting shell (12) and is rotatably connected to the mounting shell (12). The connecting pipe (13) is fixed on the side wall of the mounting shell (12). The end of the filter cylinder (10) near the connecting pipe (13) is rotatably connected to the connecting pipe (13) and coaxially arranged. The inner diameter of the connecting pipe (13) is equal to the inner diameter of the filter cylinder (10). A motor (14) is fixed on the mounting shell (12). An external gear ring (15) located inside the mounting shell (12) is fixedly sleeved on the filter cylinder (10). A rotating gear (16) meshing with the external gear ring (15) is rotatably installed inside the mounting shell (12). The motor (14) drives the rotating gear (16) to rotate.

10. The stirred nano-calcium carbonate preparation device according to claim 4, characterized in that: A metal ring (17) is rotatably sleeved on the sealing block (722), and an annular gasket (18) is fixedly sleeved on the metal ring (17). The annular gasket (18) is made of corrosion-resistant and high-temperature resistant material, and the side wall of the annular gasket (18) abuts against the inner wall of the discharge pipe (4).

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