A food-grade titanium dioxide beating and dispersing device and method

Abstract

The present application relates to the technical field of titanium dioxide production, in particular to a food-grade titanium dioxide beating dispersion device and method, the present application comprises a beating drum, a drain valve is arranged at the bottom center of the beating drum, a rectangular operation frame is arranged at the top center inside the beating drum, the bottom of the operation frame is in an open structure, a rotating rod is rotatably connected to the inner wall of the front end of the operation frame near the bottom of both ends, and a limiting gear is fixedly installed at the front and rear ends of the rotating rod; the present application realizes the sorting, crushing and re-dispersion of materials by setting a dispersion outer frame and a material distribution mechanism, which not only facilitates the efficient processing of titanium dioxide coarse materials and speeds up the reaction rate with the solution, but also assists the dispersion and discharge of the powder, reduces the concentration and deposition of the powder, and affects the beating effect; the present application also sets a stirring rod and a bottom uncovering assembly, which facilitates the lifting of the bottom deposited powder of the beating equipment, reduces the influence of the purity of the slurry product caused by the deposition of the powder, and further improves the beating efficiency of the titanium dioxide.

Description

Technical Field

[0001] This invention relates to the field of titanium dioxide production technology, specifically to a pulping and dispersing device and method for food-grade titanium dioxide. Background Technology

[0002] Titanium dioxide is an inorganic substance, a white solid or powdery amphoteric oxide, considered to be the best-performing white pigment in the world today. Titanium dioxide is also used in the food industry as a whitening agent for all food products. In the production of titanium dioxide, a pulping process is required. Pulping involves dispersing and modifying crude titanium dioxide. In this process, the crude titanium dioxide is mostly simply stirred and mixed. However, because the crude titanium dioxide particles are of different sizes, when the crude material is poured into a container, due to gravity, the particles in the slurry settle at the bottom of the slurry container and separate from the slurry, which can easily reduce the pulping efficiency of titanium dioxide and reduce the purity of the finished titanium dioxide slurry. Chinese patent CN216062820U discloses a pulper for producing food-grade titanium dioxide. It uses an inner cylinder to force the slurry to impact the cylinder wall and needle-like protrusions on the stirring paddle during mixing, which helps to crush large particles in the slurry. However, due to the high stirring resistance in the stirring paddle, and the relatively small size of the coarse particles relative to the paddle, they are difficult to contact the paddle as they flow with the liquid, thus affecting the efficiency of coarse particle crushing. Additionally, brush heads are installed at the bottom of the first and second stirring rods to prevent powder from settling at the bottom of the tank. While this method can lift some of the powder deposited at the bottom of the tank, it also easily leads to powder residue between the brush bristles, causing powder loss and requiring regular brush head replacement, which is time-consuming, labor-intensive, and reduces pulping efficiency. To address this technical deficiency, a solution is proposed. Summary of the Invention

[0003] The purpose of this invention is to achieve the sorting, crushing, and re-dispersing of materials by setting up a dispersing frame and a material distribution mechanism. This not only facilitates the efficient processing of titanium dioxide coarse material and accelerates its reaction rate with the solution, but also assists in the dispersion and discharge of powder, reducing the situation where powder concentrates and settles, thus affecting the pulping effect. Furthermore, the invention includes a stirring rod and a bottom-lifting component to facilitate the lifting of powder deposited at the bottom of the pulping equipment, reducing the impact of powder sedimentation on the purity of the finished pulp, and further improving the pulping efficiency of titanium dioxide.

[0004] The objective of this invention can be achieved through the following technical solution: a pulping and dispersing device for food-grade titanium dioxide, comprising a pulping cylinder, a drain valve at the center of the bottom of the pulping cylinder, a rectangular operating frame at the center of the top of the pulping cylinder, and an open structure at the bottom of the operating frame, rotating rods rotatably connected to the inner wall of the front end of the operating frame near the bottom of both ends, and limiting gears fixedly installed at the front and rear ends of the rotating rods, one set of the rotating rods extending to the outside of the operating frame and equipped with a motor, and the top of the four sets of limiting gears being connected to a circular dispersing frame, the dispersing frame being located inside the operating frame at the front end, and toothed grooves being provided on the outer wall of the dispersing frame at the front and rear edges, and the four sets of limiting gears respectively meshing with the front and rear edges of the dispersing frame; An annular mesh plate is embedded in the outer wall of the dispersing frame between the front and rear frame edges. A material distribution mechanism is provided inside the dispersing frame. A horizontal plate is fixedly installed inside the pulping cylinder at the bottom of the operating frame. A second motor is provided at the center of the upper surface of the horizontal plate. A stirring rod is fixedly installed at the bottom output end of the second motor. Several sets of pulping blades are arranged at equal intervals from top to bottom on the outside of the stirring rod. Bottom-lifting components are provided at both ends of the horizontal plate.

[0005] Furthermore, the material distribution mechanism includes a dispersing inner frame, which is disposed inside the dispersing outer frame, and the outer diameter of the dispersing inner frame is 3cm smaller than the inner diameter of the dispersing outer frame. A material passage pipe is provided at the center of the front end face of the dispersing inner frame, and the front end of the material passage pipe extends to the outside of the pulping cylinder and is fixedly installed with a blower. A material discharge frame is provided at the middle section of the upper end face of the material passage pipe.

[0006] Furthermore, the outer ring surface of the inner dispersing frame is provided with an annular groove, and rollers are rotatably arranged at equal intervals inside the annular groove. A vertical cylinder is provided through the center of the inner rear wall of the inner dispersing frame, and the rear end of the vertical cylinder extends to the outside of the inner dispersing frame and is fixedly connected to the inner rear wall of the outer dispersing frame. The front end of the vertical cylinder extends into the inner dispersing frame and is fixedly installed with a disc, and a grinding disc is fixedly installed at the top position of the front end face of the disc. The top of the grinding disc extends into the annular groove and contacts the rollers.

[0007] Furthermore, a limiting shaft is fixedly installed at the center of the rear end face of the dispersed outer frame, and a horizontal frame is sleeved on the outside of the limiting shaft. The two ends of the horizontal frame are slidably connected to the inside of the grooves opened at the center of the inner walls at both ends of the operating frame. A horizontal groove is opened inside the horizontal frame, and the limiting shaft is engaged at the center of the horizontal groove. Uprights are fixedly installed at both ends of the bottom surface of the horizontal frame. The bottom of the uprights extends to the bottom of the groove, and a round shaft is fixedly installed at the front end of the uprights at the bottom of the groove.

[0008] Furthermore, the two sets of bottom-removing components are mirror-symmetrical about the central axis of the horizontal plate, and the bottom-removing components include a movable cylinder, which is disposed through one end of the horizontal plate and corresponds to the position of the upright. The movable cylinder and the through groove of the horizontal plate are rotatably connected. A spiral groove is provided on the outside of the movable cylinder. The upright passes through the movable cylinder and is slidably connected in the spiral groove at the higher end.

[0009] Furthermore, a connecting rod is fixedly installed at the bottom of the movable cylinder, and a pusher plate is fixedly installed at the bottom of the connecting rod. The bottom of the pusher plate is close to the inner wall of the bottom of the pulping cylinder, and the top surface of the pusher plate is symmetrically inclined at the front and rear ends. The length of the pusher plate is adapted to the radius of the pulping cylinder, and several sets of slots are equally spaced on the inclined surfaces at the front and rear ends of the pusher plate.

[0010] A method for slurry dispersing food-grade titanium dioxide includes the following steps: Step 1: First, the coarse titanium dioxide powder is thrown into the feed pipe through the feeding frame, and the blower is started. The blower is used to send the titanium dioxide powder into the inner dispersion frame. The fine titanium dioxide powder is directly fed into the outer dispersion frame through the intermittent downwards between the two adjacent sets of rollers, while the unfiltered coarse powder is stuck between the two adjacent sets of rollers. Step Two: Start motor one, which drives a set of rotating rods and two external limiting gears to rotate clockwise. The two sets of limiting gears mesh with the front and rear edges of the dispersing frame to achieve counterclockwise rotation of the dispersing frame. At the same time, it forces the two limiting gears and rotating rods on the other side of the dispersing frame to rotate in the opposite direction, so as to jointly support the bottom of the dispersing frame and maintain the stable rotation of the dispersing frame. As the dispersing frame rotates, it drives the disc and grinding disc to rotate through the vertical cylinder. The outer wall of the grinding disc rotates counterclockwise along the annular groove and contacts the roller shaft to achieve the rotation of the roller shaft. When the grinding disc rotates to the inner wall of the bottom of the annular groove, the outer wall of the grinding disc crushes the unscreened titanium dioxide coarse material deposited in the annular groove. Similarly, the rotation of the bottom roller shaft accelerates the screening of titanium dioxide fine powder, which is introduced into the dispersing frame along with the previously discharged titanium dioxide powder to achieve the initial screening and crushing of titanium dioxide coarse powder. Step 3: After the outer frame rotates, the titanium dioxide powder is dispersed and discharged through the mesh of the ring-shaped mesh plate and directly introduced into the pulping cylinder. A certain amount of water and dispersant has been added to the pulping cylinder beforehand. Then, the second motor is started, which drives the stirring rod and multiple sets of pulping blades to rotate, which fully stirs the solution and powder inside the pulping cylinder. The fine material is dispersed and introduced to reduce its deposition at the bottom of the pulping cylinder, while accelerating the reaction rate between the fine material and the solution and improving the pulping efficiency. Step 4: The limiting shaft rotates with the outer frame and slides laterally inside the chute, forcing the horizontal frame to move up and down along the two sets of chute. The horizontal frame pushes the two sets of uprights downward, causing the round shaft to move downward along the spiral groove, realizing the rotation of the movable cylinder, connecting rod and push plate. The two sets of push plates set in opposite directions rotate 180 degrees along the inner wall of the bottom of the pulping cylinder. When the horizontal frame pulls the two sets of uprights upward, the round shaft returns to its original position along the spiral groove, forcing the push plate on the same side to rotate 180 degrees in the opposite direction. This process is repeated, and the push plate rotates clockwise and counterclockwise along the inner wall of the bottom of the pulping cylinder. The groove scrapes and lifts up some of the powder that has settled at the bottom of the pulping cylinder. Combined with the stirring of the upper pulping blades, this reduces the situation where powder sedimentation affects the pulping efficiency. Step 5: After thorough mixing, open the drain valve to discharge the solid-liquid mixture.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a dispersing outer frame and a material distribution mechanism. Coarse titanium dioxide is fed into the dispersing inner frame via a feed pipe, forcing some fine particles to pass through the gap between two adjacent sets of rollers to the dispersing outer frame. The remaining coarse particles remain in the dispersing inner frame. As the dispersing outer frame, disc, and grinding disc rotate, the grinding disc rotates along the inner wall of the dispersing inner frame and crushes the coarse titanium dioxide, resulting in fine particles that are then discharged into the inner wall of the dispersing outer frame via the gap between the two sets of rollers. The outer frame then rotates to disperse and discharge the crushed powder, which is then added to the mixing area. This structure achieves material sorting, crushing, and dispersing, facilitating efficient processing of coarse titanium dioxide and accelerating its reaction rate with the solution. It also assists in the dispersion and discharge of powder, reducing the risk of powder accumulation and sedimentation that could affect the pulping effect.

[0012] 2. This invention utilizes a stirring rod and a bottom-lifting assembly, which work in conjunction with a horizontal frame and a dispersing frame. First, the stirring rod thoroughly stirs the powder and reaction solution introduced into the pulping cylinder. Then, the rotation of the dispersing frame causes the horizontal frame and uprights to reciprocate up and down. As the two sets of uprights move downwards, they force the two sets of movable cylinders, connecting rods, and pushers to rotate. The two sets of pushers with opposite structures intermittently rotate and scrape along the inner wall of the bottom of the pulping cylinder, thereby carrying up some of the titanium dioxide powder deposited on the inner wall of the bottom of the pulping cylinder and bringing it into contact with the stirring rod for thorough mixing. This reduces the impact of powder sedimentation on the purity of the finished pulp and further improves the pulping efficiency of titanium dioxide. Attached Figure Description

[0013] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a top view of the combination of the pulping cylinder and the operation frame of the present invention; Figure 3 This is a cross-sectional view of the outer frame of the present invention; Figure 4 This is a front sectional view of the pulping cylinder of the present invention; Figure 5 This is a cross-sectional view of the back of the pulping cylinder of the present invention; Figure 6 This is a side sectional view of the combination of the operation frame, the dispersing frame and the material distribution mechanism of the present invention; Figure 7 This is a top sectional view of the pulping cylinder of the present invention; Figure 8 This is a schematic diagram of the pusher structure of the present invention.

[0015] In the diagram: 1. Pulping cylinder; 101. Drain valve; 2. Operating frame; 3. Rotating rod; 301. Limiting gear; 302. Motor 1; 4. Dispersing outer frame; 401. Gear assembly; 402. Annular mesh plate; 5. Material distribution mechanism; 501. Dispersing inner frame; 502. Material passage pipe; 503. Fan; 504. Discharge frame; 505. Annular groove; 506. Roller shaft; 507. Vertical cylinder; 508. Disc; 509. Grinding disc; 6. Horizontal plate; 601. Motor 2; 602. Stirring rod; 603. Pulping blade; 7. Bottom-lifting assembly; 701. Movable cylinder; 702. Spiral groove; 703. Connecting rod; 704. Push plate; 705. Slot; 8. Limiting shaft; 9. Horizontal frame; 901. Sliding groove; 902. Horizontal groove; 903. Vertical rod; 904. Round shaft. Detailed Implementation

[0016] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0017] Please see Figure 1 - Figure 8As shown, a pulping and dispersing device for food-grade titanium dioxide includes a pulping cylinder 1. A drain valve 101 is provided at the center of the bottom of the pulping cylinder 1. A rectangular operating frame 2 is provided at the center of the top of the pulping cylinder 1. The bottom of the operating frame 2 is open. Rotating rods 3 are rotatably connected to the inner wall of the front end of the operating frame 2 near the bottom of both ends. Limiting gears 301 are fixedly installed at the front and rear ends of the rotating rods 3. The front end of one set of rotating rods 3 extends to the outside of the operating frame 2 and is provided with a motor 302. The top of the four sets of limiting gears 301 are connected to a circular dispersing frame 4. The dispersing frame 4 is located inside the operating frame 2 at the front end. The outer wall of the dispersing frame 4 is provided with toothed grooves 401 at the front and rear frame edges. The four sets of limiting gears 301 mesh with the front and rear frames of the dispersing frame 4 respectively. An annular mesh plate 402 is embedded in the outer wall of the dispersing frame 4 between the front and rear frame edges. The outer dispersing frame 4 is equipped with a material distribution mechanism 5, which includes an inner dispersing frame 501. The inner dispersing frame 501 is located inside the outer dispersing frame 4, and the outer diameter of the inner dispersing frame 501 is 3 cm smaller than the inner diameter of the outer dispersing frame 4. A material passage pipe 502 is provided at the center of the front end face of the inner dispersing frame 501, and the front end of the material passage pipe 502 extends to the outside of the pulping cylinder 1 and is fixedly installed with a blower 503. A feeding frame 504 is provided at the middle section of the upper end face of the material passage pipe 502. First, the titanium dioxide coarse powder is thrown into the material passage pipe 502 through the feeding frame 504, and the blower 503 is started to use the wind power to send the titanium dioxide powder into the inner dispersing frame 501, reducing the powder being thrown up during feeding. The inner dispersing frame 501 is used to screen and crush the introduced titanium dioxide coarse powder, and the crushed fine material is automatically introduced into the outer dispersing frame 4. By starting the motor 302, it drives a set of rotating rods 3 and two external limiting gears 301 to rotate clockwise. The two sets of limiting gears 301 that rotate on their own mesh with the front and rear edges of the dispersing frame 4 respectively, so as to realize the counterclockwise rotation of the dispersing frame 4. At the same time, it forces the two limiting gears 301 and rotating rods 3 on the other side of the dispersing frame 4 to rotate in the opposite direction, so as to support the bottom of the dispersing frame 4 together while maintaining the stable rotation of the dispersing frame 4. As the dispersing frame 4 rotates, the titanium dioxide powder is dispersed and discharged by the mesh of the annular mesh plate 402 and directly introduced into the pulping cylinder 1. A certain amount of water and dispersant have been added to the pulping cylinder 1 in advance. A horizontal plate 6 is fixedly installed inside the pulping cylinder 1 at the bottom of the operating frame 2. A motor 601 is installed at the center of the upper surface of the horizontal plate 6. A stirring rod 602 is fixedly installed at the bottom output end of the motor 601. Several sets of pulping blades 603 are arranged at equal intervals from top to bottom on the outside of the stirring rod 602. When the motor 601 is started, it drives the stirring rod 602 and the multiple sets of pulping blades 603 to rotate, thereby fully stirring the solution and powder inside the pulping cylinder 1. The fine material is dispersed and introduced to reduce its deposition at the bottom of the pulping cylinder 1. At the same time, it accelerates the reaction rate between the fine material and the solution and improves the pulping efficiency. Example 2

[0018] Please see Figure 6 As shown, an annular groove 505 is formed on the outer ring surface of the inner dispersing frame 501, and rollers 506 are rotatably arranged at equal intervals inside the annular groove 505. A vertical cylinder 507 is inserted through the center of the inner wall of the rear end of the inner dispersing frame 501, and the rear end of the vertical cylinder 507 extends to the outside of the inner dispersing frame 501 and is fixedly connected to the inner wall of the rear end of the outer dispersing frame 4. The front end of the vertical cylinder 507 extends into the inner dispersing frame 501 and is fixedly installed with a disc 508. A grinding disc 509 is fixedly installed at the top position of the front end face of the disc 508. The top of the grinding disc 509 extends into the annular groove 505 and contacts the rollers 506. As the outer dispersing frame 4 rotates, it drives the disc 508 and the grinding disc 509 to rotate through the vertical cylinder 507. The outer wall of the grinding disc 509 rotates counterclockwise along the annular groove 505 and contacts the rollers 506 to realize the rotation of the rollers 506. When the grinding disc 509 rotates to the bottom inner wall of the annular groove 505, the outer wall of the grinding disc 509 crushes the unscreened titanium dioxide coarse material deposited in the annular groove 505. Similarly, the bottom roller 506 rotates to accelerate the screening of titanium dioxide fine powder, which is then introduced into the dispersion frame 4 along with the previously discharged titanium dioxide powder. This structure not only enables automatic screening of materials but also facilitates the automatic crushing of separately screened coarse material, reducing the situation where large coarse particles settle at the bottom of the mixing equipment and are difficult to mix fully, thus improving the pulping efficiency. Example 3

[0019] Please see Figure 4 - Figure 6 As shown, a limiting shaft 8 is fixedly installed at the center of the rear end face of the dispersing outer frame 4. A horizontal frame 9 is sleeved on the outside of the limiting shaft 8. The two ends of the horizontal frame 9 are slidably connected to the inside of the sliding grooves 901 opened at the center of the inner walls at both ends of the operating frame 2. A horizontal groove 902 is opened inside the horizontal frame 9, and the limiting shaft 8 is engaged at the center of the horizontal groove 902. A vertical rod 903 is fixedly installed at both ends of the bottom surface of the horizontal frame 9. The bottom of the vertical rod 903 extends to the bottom of the sliding groove 901, and a round shaft 904 is fixedly installed at the bottom of the sliding groove 901 on the front end face of the vertical rod 903. The limiting shaft 8 rotates with the dispersing outer frame 4 and slides laterally inside the sliding groove 901, forcing the horizontal frame 9 to move up and down along the two sets of sliding grooves 901 respectively. Please see Figure 4 , Figure 7 - Figure 8As shown, two bottom-lifting components 7 are respectively provided at both ends of the horizontal plate 6. The two sets of bottom-lifting components 7 are mirror-symmetrical with respect to the central axis of the horizontal plate 6. The bottom-lifting component 7 includes a movable cylinder 701. The movable cylinder 701 is installed through one end of the horizontal plate 6 and corresponds to the position of the upright 903. The movable cylinder 701 is rotatably connected to the through slot of the horizontal plate 6. A spiral groove 702 is opened on the outside of the movable cylinder 701. The upright 903 passes through the movable cylinder 701. The round shaft 904 is slidably connected in the spiral groove 702 at the higher end. A connecting rod 703 is fixedly installed at the bottom of the movable cylinder 701, and a pusher plate 704 is fixedly installed at the bottom of the connecting rod 703. The bottom of the pusher plate 704 is close to the inner wall of the bottom of the pulping cylinder 1, and the top surface of the pusher plate 704 is symmetrically inclined at the front and rear ends. The length of the pusher plate 704 is adapted to the radius of the pulping cylinder 1, and several sets of slots 705 are equally spaced on the inclined surfaces at the front and rear ends of the pusher plate 704. The horizontal frame 9 pushes the two sets of uprights 903 downward, so that the circular shaft 904 moves downward along the spiral groove 702, realizing the rotation of the movable cylinder 701, the connecting rod 703 and the pusher plate 704. Two sets of push blades 704 arranged in opposite directions rotate 180 degrees along the inner wall of the bottom of the pulping cylinder 1. When the horizontal frame 9 pulls the two sets of uprights 903 upward, the round shaft 904 returns to its original position along the spiral groove 702, forcing the push blades 704 on the same side to rotate 180 degrees in the opposite direction. This process is repeated, and the push blades 704 rotate clockwise and counterclockwise along the inner wall of the bottom of the pulping cylinder 1. The slot 705 scrapes and lifts up some of the powder that has settled at the bottom of the pulping cylinder 1. This is then combined with the stirring of the upper pulping blades 603 to reduce the amount of powder settling and thus reduce the impact on the pulping efficiency.

[0020] In both Embodiment 1 and Embodiment 2, the coarse titanium dioxide material is first introduced into the inner dispersion frame 501 by the feed pipe 502 and the blower 503. This forces some of the fine particles in the coarse material to pass through the gap between two sets of rollers 506 to the outer dispersion frame 4, while the remaining coarse material remains in the inner dispersion frame 501. As the outer dispersion frame 4, disc 508, and grinding disc 509 rotate, the grinding disc 509 rotates along the inner wall of the inner dispersion frame 501 and crushes the coarse titanium dioxide material, causing it to be crushed into fine powder. This powder is then discharged into the inner wall of the outer dispersion frame 4 through the gap between the two sets of rollers 506. The outer dispersion frame 4 then uses its own rotation to disperse and discharge the crushed powder to the stirring area. This structure achieves the sorting, crushing, and dispersing of materials, which not only facilitates the efficient processing of coarse titanium dioxide material and accelerates its reaction rate with the solution, but also assists in the dispersion and discharge of powder, reducing the situation where powder concentrates and settles, thus affecting the pulping effect. Based on Examples 1 and 2, Example 3 is set up. The powder and reaction solution introduced into the pulping cylinder 1 are thoroughly stirred by the stirring rod 602. Then, the horizontal frame 9 and the vertical rod 903 are reciprocated up and down by the rotation of the outer dispersion frame 4. The two sets of vertical rods 903 move downward, forcing the two sets of movable cylinders 701, connecting rods 703 and push plates 704 to rotate. The two sets of push plates 704 with opposite structures rotate intermittently in opposite directions along the bottom of the pulping cylinder 1 and scrape against each other, so as to carry up some of the titanium dioxide powder deposited on the inner wall of the bottom of the pulping cylinder 1 and contact it with the stirring rod 602 for thorough stirring. This reduces the impact of powder sedimentation on the purity of the finished pulp and further improves the pulping efficiency of titanium dioxide.

[0021] As an embodiment of the present invention, a method for pulping and dispersing food-grade titanium dioxide is also disclosed, comprising the following steps: Step 1: First, the coarse titanium dioxide powder is thrown into the feed pipe 502 through the feeding frame 504, and the blower 503 is started to use the wind power to send the titanium dioxide powder into the inner dispersion frame 501. The fine titanium dioxide powder is directly passed directly between the two adjacent sets of rollers 506 and intermittently introduced into the inner dispersion frame 4, while the unfiltered coarse material is stuck between the two adjacent sets of rollers 506. Step Two: Start motor 302, which drives a set of rotating rods 3 and two external limiting gears 301 to rotate clockwise. The two sets of limiting gears 301 mesh with the front and rear edges of the dispersing frame 4 respectively, so as to realize the counterclockwise rotation of the dispersing frame 4. At the same time, it forces the two limiting gears 301 and the rotating rods 3 on the other side of the dispersing frame 4 to rotate in the opposite direction, so as to achieve joint support for the bottom of the dispersing frame 4 and maintain the stable rotation of the dispersing frame 4. As the dispersing frame 4 rotates, it drives the disc 5 through the vertical cylinder 507. 08 and the grinding disc 509 rotate. The outer wall of the grinding disc 509 rotates counterclockwise along the annular groove 505 and contacts the roller shaft 506 to achieve the rotation of the roller shaft 506. When the grinding disc 509 rotates to the bottom inner wall of the annular groove 505, the outer wall of the grinding disc 509 crushes the unscreened titanium dioxide coarse material deposited in the annular groove 505. Similarly, the screening of titanium dioxide fine powder is accelerated along with the rotation of the bottom roller shaft 506, and it is introduced into the dispersion frame 4 along with the titanium dioxide powder that was discharged in advance to achieve the initial screening and crushing of titanium dioxide coarse powder. Step 3: After the outer frame 4 rotates, the titanium dioxide powder is dispersed and discharged through the mesh of the annular mesh plate 402 and directly introduced into the pulping cylinder 1. A certain amount of water and dispersant has been added to the pulping cylinder 1 beforehand. Then, the motor 601 is started, which drives the stirring rod 602 and multiple sets of pulping blades 603 to rotate, so as to fully stir the solution and powder inside the pulping cylinder 1. The fine material is dispersed and introduced to reduce its deposition at the bottom of the pulping cylinder 1, while accelerating the reaction rate between the fine material and the solution and improving the pulping efficiency. Step 4: The limiting shaft 8 rotates with the dispersing outer frame 4 and slides laterally inside the slide groove 901, forcing the horizontal frame 9 to move up and down along the two sets of slide grooves 901 respectively. The horizontal frame 9 pushes the two sets of uprights 903 downward, causing the round shaft 904 to move downward along the spiral groove 702, realizing the rotation of the movable cylinder 701, connecting rod 703 and push plate 704. The two sets of push plates 704 set in opposite directions rotate 180 degrees along the bottom inner wall of the pulping cylinder 1. When the horizontal frame 9 pulls the two sets of uprights 903 upward, the round shaft 904 returns to its original position along the spiral groove 702, forcing the push plate 704 on the same side to rotate 180 degrees in the opposite direction. This is repeated, and the push plate 704 rotates clockwise and counterclockwise along the bottom inner wall of the pulping cylinder 1. The slot 705 scrapes and lifts up some of the powder that has settled at the bottom of the pulping cylinder 1. Then, it is combined with the upper pulping blade 603 to stir, so as to reduce the situation where the powder settles and affects the pulping efficiency. Step 5: After thorough mixing, open drain valve 101 to drain the solid-liquid mixture.

[0022] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A food-grade titanium dioxide beating dispersion device, comprising a beating cylinder (1), a drain valve (101) is arranged at the bottom center of the beating cylinder (1), characterized in that: The pulping cylinder (1) has a rectangular operating frame (2) located at the top center inside, and the bottom of the operating frame (2) is open. The inner wall of the front end of the operating frame (2) is rotatably connected to the bottom of both ends, and the front and rear ends of the rotating rod (3) are fixedly installed with limit gears (301). One set of the rotating rods (3) extends to the outside of the operating frame (2) and is equipped with a motor (302). The top of the four sets of limit gears (301) is connected to a circular dispersion frame (4). The dispersion frame (4) is located inside the operating frame (2) at the front end, and the outer wall of the dispersion frame (4) is equipped with a toothed groove group (401) at the front and rear end frame edges. The four sets of limit gears (301) mesh with the front and rear frames of the dispersion frame (4) respectively. The outer wall of the dispersing frame (4) is embedded with a ring mesh plate (402) between the front and rear frame edges. The dispersing frame (4) is equipped with a material distribution mechanism (5). The pulping cylinder (1) is fixedly installed with a horizontal plate (6) at the bottom of the operating frame (2). A motor (601) is installed at the center of the upper surface of the horizontal plate (6). A stirring rod (602) is fixedly installed at the bottom output end of the motor (601). Several sets of pulping blades (603) are arranged at equal intervals from top to bottom on the outside of the stirring rod (602). Bottom-lifting components (7) are respectively provided at both ends of the horizontal plate (6). A limiting shaft (8) is fixedly installed at the center of the rear end face of the dispersed outer frame (4). A horizontal frame (9) is sleeved on the outside of the limiting shaft (8). The two ends of the horizontal frame (9) are slidably connected to the inside of the sliding groove (901) opened at the center of the inner wall of the two ends of the operating frame (2). A horizontal groove (902) is opened inside the horizontal frame (9). The limiting shaft (8) is snapped into the center of the horizontal groove (902). A vertical rod (903) is fixedly installed at both ends of the bottom surface of the horizontal frame (9). The bottom of the vertical rod (903) extends to the bottom of the sliding groove (901). A round shaft (904) is fixedly installed at the bottom of the sliding groove (901) on the front end face of the vertical rod (903). The two sets of bottom-removing components (7) are mirror-symmetrical about the central axis of the horizontal plate (6), and the bottom-removing component (7) includes a movable cylinder (701). The movable cylinder (701) is disposed through one end of the horizontal plate (6) and corresponds to the position of the upright (903). The movable cylinder (701) and the through slot of the horizontal plate (6) are rotatably connected. A spiral groove (702) is provided on the outside of the movable cylinder (701). The upright (903) passes through the movable cylinder (701), and the round shaft (904) is slidably connected in the spiral groove (702) at the higher end. A connecting rod (703) is fixedly installed at the bottom of the movable cylinder (701), and a pusher plate (704) is fixedly installed at the bottom of the connecting rod (703). The bottom of the pusher plate (704) is close to the inner wall of the bottom of the pulping cylinder (1), and the top surface of the pusher plate (704) is symmetrically inclined at the front and rear ends. The length of the pusher plate (704) is adapted to the radius of the pulping cylinder (1), and several sets of slots (705) are evenly arranged on the inclined surfaces at the front and rear ends of the pusher plate (704).

2. The pulping and dispersing device for food-grade titanium dioxide according to claim 1, characterized in that, The material distribution mechanism (5) includes a dispersing inner frame (501), which is located inside the dispersing outer frame (4). The outer diameter of the dispersing inner frame (501) is 2-3 cm smaller than the inner diameter of the dispersing outer frame (4). A material passage pipe (502) is provided at the center of the front end face of the dispersing inner frame (501), and the front end of the material passage pipe (502) extends to the outside of the pulping cylinder (1) and is fixedly installed with a blower (503). A material discharge frame (504) is provided at the middle section of the upper end face of the material passage pipe (502).

3. The pulping and dispersing device for food-grade titanium dioxide according to claim 2, characterized in that, The outer ring surface of the inner dispersing frame (501) is provided with an annular groove (505), and rollers (506) are rotatably arranged at equal intervals inside the annular groove (505). A vertical cylinder (507) is provided through the center of the inner wall of the rear end of the inner dispersing frame (501), and the rear end of the vertical cylinder (507) extends to the outside of the inner dispersing frame (501) and is fixedly connected to the inner wall of the rear end of the outer dispersing frame (4). The front end of the vertical cylinder (507) extends to the inside of the inner dispersing frame (501) and is fixedly installed with a disc (508). A grinding disc (509) is fixedly installed at the top position of the front end face of the disc (508), and the top of the grinding disc (509) extends into the annular groove (505) and contacts the rollers (506).

4. A method for pulping and dispersing food-grade titanium dioxide, used in the pulping and dispersing apparatus for food-grade titanium dioxide as described in any one of claims 1-3, characterized in that, Includes the following steps: Step 1: First, the coarse titanium dioxide powder is thrown into the feed pipe (502) through the feeding frame (504), and the blower (503) is started to use the wind power to send the titanium dioxide powder into the inner dispersion frame (501). The fine titanium dioxide powder is directly passed through the two adjacent sets of rollers (506) and intermittently introduced into the inner dispersion frame (4), while the unfiltered coarse material is stuck between the two adjacent sets of rollers (506). Step 2: Start motor 1 (302), which drives a set of rotating rods (3) and two external limiting gears (301) to rotate clockwise. The two sets of limiting gears (301) that rotate on their own mesh with the front and rear edges of the dispersing frame (4) to achieve counterclockwise rotation of the dispersing frame (4). At the same time, it forces the two limiting gears (301) and rotating rods (3) on the other side of the dispersing frame (4) to rotate in the opposite direction, so as to achieve joint support for the bottom of the dispersing frame (4) while maintaining the stable rotation of the dispersing frame (4). As the dispersing frame (4) rotates, it drives the disc through the vertical cylinder (507). (508) and the grinding disc (509) rotate. The outer wall of the grinding disc (509) rotates counterclockwise along the annular groove (505) and contacts the roller shaft (506) to achieve the rotation of the roller shaft (506). When the grinding disc (509) rotates to the inner wall of the bottom of the annular groove (505), the outer wall of the grinding disc (509) crushes the unscreened titanium dioxide coarse material deposited in the annular groove (505). Similarly, the screening of titanium dioxide fine powder is accelerated along with the rotation of the bottom roller shaft (506), and it is introduced into the interior of the dispersion frame (4) in the same way as the titanium dioxide powder that was discharged in advance, so as to achieve the initial screening and crushing of titanium dioxide coarse powder. Step 3: After the outer frame (4) rotates, the titanium dioxide powder is dispersed and discharged through the mesh of the ring mesh plate (402) and directly introduced into the pulping cylinder (1). A certain amount of water and dispersant have been added to the pulping cylinder (1) beforehand. Then, the motor (601) is started, which drives the stirring rod (602) and multiple sets of pulping blades (603) to rotate and fully stir the solution and powder inside the pulping cylinder (1). The fine material is dispersed and introduced to reduce its deposition at the bottom of the pulping cylinder (1), while accelerating the reaction rate between the fine material and the solution and improving the pulping efficiency. Step 4: The limiting shaft (8) rotates with the dispersing outer frame (4) and slides laterally inside the slide groove (901), forcing the horizontal frame (9) to move up and down along the two sets of slide grooves (901) respectively. The horizontal frame (9) pushes the two sets of uprights (903) to move downward, causing the round shaft (904) to move downward along the spiral groove (702), realizing the rotation of the movable cylinder (701), connecting rod (703) and push plate (704). The two sets of push plates (704) set in opposite directions move 180 degrees along the bottom inner wall of the pulping cylinder (1) respectively. The rotational motion of the horizontal frame (9) pulls the two sets of uprights (903) upward, and the circular shaft (904) returns to its original position along the spiral groove (702), forcing the pusher (704) on the same side to rotate 180 degrees in the opposite direction. This is repeated, and the pusher (704) rotates clockwise and counterclockwise along the inner wall of the bottom of the pulping cylinder (1). The slot (705) scrapes and lifts up some of the powder that has settled at the bottom of the pulping cylinder (1), and then it is stirred by the upper pulping blade (603) to reduce the situation where the powder settles and affects the pulping efficiency. Step 5: After thorough mixing, open the drain valve (101) to drain the solid-liquid mixture.

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