An online zirconium bead adding device for sand mill in titanium dioxide production

Abstract

The present invention relates to the technical field of sand mills, and discloses an online device for adding zirconium beads to a sand mill used in titanium dioxide production. The device comprises a feed mechanism mounted on the top surface of a base, comprising a feed pipe fixed to the middle of the base, a raw material supply cylinder and a zirconium bead supply cylinder mounted on the top of the feed pipe in sequence from front to back. The device also comprises: an adding mechanism for quantitatively adding zirconium beads, a feed chute provided on the top wall of the zirconium bead supply cylinder, a feeding mechanism for intermittent feeding, a guide mechanism for guiding the zirconium beads to fall, and a control mechanism for controlling the falling speed of the zirconium beads. The present invention quantitatively adds zirconium beads through the intermittent rotation of a rotating drum, ensuring stable and continuous production.

Description

Technical Field

[0001] The invention belongs to the technical field of sand mills, in particular to an online zirconium bead adding device for a sand mill in titanium dioxide production. Background Art

[0002] The sand mill uses grinding media to continuously collide with the raw materials to reduce the size of the raw materials. In the production of titanium dioxide, the sand mill needs to use zirconium beads as the grinding medium and water as a liquid grinding aid to grind the titanium dioxide slurry to meet the index control requirements. During the operation of the sand mill, the zirconium beads will continue to wear and reduce, and they need to be added in time to ensure the grinding effect of the sand mill.

[0003] Patent CN209613153U discloses a horizontal sand mill, including a base, an abrasive assembly is arranged above the base, a support assembly for supporting the abrasive assembly is arranged at the lower end of the abrasive assembly, an abrasive assembly stirring shaft, a stirring blade, a stirring barrel and a cooling barrel, a feed pipe and a discharge pipe are arranged at the outer end of the cooling barrel, a feed hose and a discharge hose are respectively arranged on the feed pipe and the discharge pipe, a pump is arranged on the feed hose, a water inlet pipe and a water outlet pipe are arranged on one side of the base, a water inlet hose is arranged on the water inlet pipe, the water inlet hose is connected to the bottom end of the cooling barrel, a water outlet hose is arranged on the water outlet pipe, the water outlet hose is connected to the upper end of the cooling barrel, and a feed port for adding zirconium beads is arranged between the cooling barrel and the stirring barrel. By arranging the abrasive assembly and the feed pipe and the discharge pipe on the base, manual grinding is replaced and the grinding accuracy is also made higher. Patent CN209531041U discloses a nanomaterial grinding device, including a motor, a grinding barrel, a frame, an air filter, an operation panel, a pneumatic diaphragm pump, a transmission device, a screen, and a stirring rod. The motor, grinding barrel, and transmission device are set on the frame. A stirring rod is provided in the grinding barrel. The motor is connected to the stirring rod through the transmission device. A screen is provided in the grinding barrel. The inside of the grinding barrel is filled with zirconia beads. An operation panel is set on the frame. Grinding is performed in a closed grinding barrel to achieve the effect of grinding the material into a finer material.

[0004] The above patents all pre-fill zirconium beads. During the operation, the lost zirconium beads cannot be replenished in time. When replenishing, the equipment needs to be stopped and production interrupted, which affects the stability and continuity of production, thereby affecting production efficiency and product quality.

[0005] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide an online zirconium bead adding device for a sand mill in titanium dioxide production to solve the above-mentioned problems of the prior art.

[0007] To achieve the above-mentioned object, the present invention provides an online zirconium bead adding device for a sand mill in titanium dioxide production, comprising a feeding mechanism mounted on the top surface of a base, the feeding mechanism comprising a feeding pipe fixed to the middle portion of the base, a raw material supply cylinder and a zirconium bead supply cylinder being mounted on the top of the feeding pipe in sequence from front to back, and further comprising:

[0008] An adding mechanism for quantitatively adding zirconium beads, the adding mechanism comprising a rotating drum rotatably connected to the center of the top surface of the zirconium bead supply drum via a rotating rod, the rotating drum being through-through, a plurality of annular partitions with equal spacing fixed between the outer wall of the rotating rod and the inner wall of the rotating drum, and a corrugated plate fixed to the top surface of the rotating drum;

[0009] A feeding trough is provided on the top wall of the zirconium bead supply cylinder, wherein the feeding trough corresponds to the space formed by one pair of adjacent partitions and has a size that matches the space formed by the adjacent partitions;

[0010] A feeding mechanism for intermittent feeding, comprising a storage cylinder fixed obliquely above the zirconium bead supply cylinder by an oblique column, an oblique cylinder being installed at the bottom end of one side of the storage cylinder close to the zirconium bead supply cylinder, the oblique cylinder extending above the space formed by one pair of adjacent partitions, a movable plate being slidably inserted above the rotating cylinder, mounting plates being fixed to the top ends of the front and rear sides of the movable plate, a Y-shaped piece being fixed to the bottom surfaces of the two mounting plates, the bottom ends of the Y-shaped pieces being in close contact with the top surface of the wave plate;

[0011] A guiding mechanism for guiding the zirconium beads to fall, the guiding mechanism being installed between the front and rear side walls of the zirconium bead supply cylinder near the top;

[0012] A control mechanism for controlling the falling speed of the zirconium beads is installed between the front and rear side walls of the zirconium bead supply cylinder near the bottom end.

[0013] In the technical solution of the present invention, the feeding mechanism also includes a driving motor fixed at the center of the front side of the feeding pipe. The output shaft of the driving motor extends into the feeding pipe and is fixedly sleeved with a roller, and a spiral plate is fixed on the outer wall of the roller.

[0014] In the technical solution of the present invention, the adding mechanism also includes a bracket fixed on the outer wall of the zirconium bead supply cylinder near the top, the bracket is in an inverted L shape, the bracket cross plate extends above the rotating rod, and the top of the rotating rod is rotatably connected to the bottom surface of the bracket.

[0015] In the technical solution of the present invention, a control motor is fixed on the top surface of the bracket near the rotating rod. After the output shaft of the control motor passes through the horizontal plate of the bracket, a fixed sleeve is provided with a dial, and the fixed sleeve on the outer wall of the rotating rod is provided with a groove wheel that cooperates with the dial.

[0016] In the technical solution of the present invention, the positions of the radial grooves of the sheave correspond one-to-one with the positions of the partitions, and the positions of the recessed portions of the wave plate correspond one-to-one with the positions of the partitions.

[0017] In the technical solution of the present invention, a plurality of springs are regularly installed between the top surface of the Y-shaped transverse plate and the bottom surface of the inclined cylinder, and the height of the movable plate is greater than the height of the convex portion of the wave plate.

[0018] In the technical solution of the present invention, the guiding mechanism includes two inclined plates arranged opposite to each other, and an insert plate is slidably inserted between the bottom ends of the two inclined plates. One end of the insert plate extends outside the zirconium bead supply cylinder and is fixed with a pull ring.

[0019] In the technical solution of the present invention, a water pump for replenishing liquid grinding aid is also fixed on the outer wall of the zirconium bead supply cylinder between the guide mechanism and the control mechanism. The water outlet of the water pump is connected to a water pipe extending into the zirconium bead supply cylinder, and the water inlet of the water pump is connected to an external supply device through a hose.

[0020] In the technical solution of the present invention, the control mechanism includes two rotating shafts arranged side by side, and the two rotating shafts are respectively close to the left and right inner walls of the zirconium bead supply cylinder. The opposite parts of the outer side walls of the two rotating shafts are fixed with rotating plates, and the opposite surfaces of the two rotating plates are tightly fitted.

[0021] In the technical solution of the present invention, one end of the rotating shaft extends to the outside of the zirconium bead supply cylinder and is fixedly sleeved with a gear. An electric push rod is fixed on the outer side wall of the zirconium bead supply cylinder between the two gears. An I-shaped piece is fixed to the bottom end of the telescopic end of the electric push rod. The opposite surfaces of the two vertical plates of the I-shaped piece are fixed with racks that mesh with the adjacent gears.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. In the present invention, a groove wheel is provided to control the intermittent rotation of the drum, so that the zirconium beads in the storage cylinder are added between two adjacent partitions. When the drum is about to rotate, the movable plate drops to stop the supply of zirconium beads. The zirconium beads then enter the zirconium bead supply cylinder through the discharge chute and are supplied intermittently in a quantitative manner. The zirconium beads can be replenished in time to ensure the stability and continuity of production.

[0024] 2. In the present invention, a water pump is provided to supplement water. Water acts as a liquid grinding aid to assist grinding and can also drive the zirconium beads into the feed pipe. The movement of the two rotating plates can control the falling speed of the zirconium beads, so that the zirconium beads can smoothly enter the feed pipe and be added smoothly, preventing excessive addition from affecting the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a cross-sectional view of the feed pipe in the present invention;

[0027] Figure 3 This is a schematic structural diagram of the zirconium bead supply tube in the present invention;

[0028] Figure 4 is a cross-sectional view of the zirconium bead supply cylinder of the present invention;

[0029] Figure 5 This is a schematic diagram of the partial structure of the adding mechanism in the present invention;

[0030] Figure 6 This is a partial bottom view of the adding mechanism of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the feeding mechanism in the present invention;

[0032] Figure 8 It is a cross-sectional view of the inclined cylinder in the present invention;

[0033] Figure 9 Schematic diagram of the structure of the control mechanism in the present invention.

[0034] Description of reference numerals:

[0035] 1. Base;

[0036] 2. Feeding mechanism; 20. Feeding pipe; 21. Driving motor; 22. Roller; 23. Spiral plate;

[0037] 3. Raw material supply cylinder;

[0038] 4. Zirconium bead supply cylinder; 40. Adding mechanism; 400. Rotating cylinder; 401. Rotating rod; 402. Grooved wheel; 403. Partition; 404. Corrugated plate; 405. Bracket; 406. Control motor; 407. Dial; 41. Discharge chute; 42. Feeding mechanism; 420. Storage cylinder; 421. Inclined cylinder; 422. Movable plate; 423. Mounting plate; 424. Y-shaped part; 425. Spring; 43. Guide mechanism; 430. Inclined plate; 431. Insert plate; 44. Water pump; 45. Control mechanism; 450. Rotating shaft; 451. Rotating plate; 452. Gear; 453. Electric push rod; 454. I-shaped part; 455. Rack. DETAILED DESCRIPTION

[0039] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0040] Unless expressly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising” will be understood to include the stated elements or components but not to exclude other elements or components.

[0041] Reference Figures 1-9 The present invention provides an online zirconium bead adding device for a sand mill in titanium dioxide production, comprising a feeding mechanism 2 installed on the top surface of a base 1, the feeding mechanism 2 comprising a feeding pipe 20 fixed in the middle of the base 1, a raw material supply cylinder 3 and a zirconium bead supply cylinder 4 being sequentially installed on the top of the feeding pipe 20 from front to back, and further comprising: an adding mechanism 40 for quantitatively adding zirconium beads; a feeding chute 41 provided on the top wall of the zirconium bead supply cylinder 4, the feeding chute 41 corresponding to the spatial position formed by one pair of adjacent partitions 403 and having a size adapted thereto; a feeding mechanism 42 for intermittent feeding; a guiding mechanism 43 for guiding the falling of the zirconium beads; and a control mechanism 45 for controlling the falling speed of the zirconium beads. The present invention quantitatively adds zirconium beads through the adding mechanism 40 and replenishes the zirconium beads in time. The control mechanism 45 can smoothly add the zirconium beads, thereby ensuring the stability and continuity of the grinding operation.

[0042] In the present invention, the feeding mechanism 2 also includes a driving motor 21 fixed in the center of the front side of the feeding pipe 20. The output shaft of the driving motor 21 extends into the feeding pipe 20 and is fixedly sleeved with a roller 22. A spiral plate 23 is fixed to the outer wall of the roller 22. The output shaft of the driving motor 21 drives the roller 22 to rotate, and the spiral plate 23 on the roller 22 transports the raw materials and zirconium beads into the sand mill.

[0043] In the present invention, the adding mechanism 40 includes a rotating drum 400 rotatably connected to the center of the top surface of the zirconium bead supply drum 4 via a rotating rod 401. The rotating drum 400 is through-through, and a plurality of annular partitions 403 are fixed between the outer wall of the rotating rod 401 and the inner wall of the rotating drum 400 at equal intervals. A corrugated plate 404 is fixed to the top surface of the rotating drum 400. The partitions 403 divide the internal space of the rotating drum 400 into equal parts, allowing the zirconium beads to be added intermittently and quantitatively.

[0044] Specifically, the adding mechanism 40 also includes a bracket 405 fixed to the outer wall of the zirconium bead supply cylinder 4 near the top. The bracket 405 is in an inverted L shape. The horizontal plate of the bracket 405 extends above the rotating rod 401. The top of the rotating rod 401 is rotatably connected to the bottom surface of the bracket 405, making the rotation of the rotating rod 401 more stable.

[0045] Furthermore, a control motor 406 is fixed to the top surface of the bracket 405 near the rotating rod 401. The output shaft of the control motor 406 passes through the horizontal plate of the bracket 405 and is fixed with a dial 407. The fixed sleeve on the outer wall of the rotating rod 401 is provided with a groove wheel 402 that cooperates with the dial 407. The output shaft of the control motor 406 drives the dial 407 to move, and the dial 407 drives the groove wheel 402 to rotate intermittently, causing the rotating drum 400 to rotate intermittently.

[0046] In addition, the positions of the radial grooves of the sheave 402 correspond one-to-one with the positions of the partitions 403 , and the positions of the recesses of the wave plate 404 correspond one-to-one with the positions of the partitions 403 , so that the rotation of the sheave 402 and the rotation of the drum 400 remain consistent.

[0047] In the present invention, the feeding mechanism 42 includes a storage cylinder 420 fixed to the oblique upper side of the zircon bead supply cylinder 4 by an inclined column, and an inclined cylinder 421 is installed at the bottom end of the storage cylinder 420 close to the zircon bead supply cylinder 4, and the inclined cylinder 421 extends to above the space formed by one pair of adjacent partitions 403, and the inclined cylinder 421 is slidably inserted with a movable plate 422 above the rotating cylinder 400, and the top of the front and rear side surfaces of the movable plate 422 are fixed with mounting plates 423, and the bottom surfaces of the two mounting plates 423 are fixed with the same Y-shaped piece 424, and the bottom end of the Y-shaped piece 424 is tightly fitted with the top surface of the wave plate 404, and the Y-shaped piece 424 moves up and down repeatedly with the wave plate 404. When the rotating cylinder 400 is about to rotate, the movable plate 422 descends to prevent the zirconium beads from entering the rotating cylinder 400.

[0048] Specifically, a number of springs 425 are regularly installed between the top surface of the horizontal plate of the Y-shaped member 424 and the bottom surface of the inclined cylinder 421. The springs 425 enable the bottom end of the Y-shaped member 424 to always fit with the top surface of the wave plate 404. The height of the movable plate 422 is greater than the height of the convex part of the wave plate 404, preventing the movable plate 422 from separating from the inclined cylinder 421.

[0049] In the present invention, the guide mechanism 43 is installed between the front and rear side walls of the zirconium bead supply tube 4 near the top. The guide mechanism 43 includes two inclined plates 430 arranged opposite to each other. An insert plate 431 is slidably inserted between the bottom ends of the two inclined plates 430. One end of the insert plate 431 extends to the outside of the zirconium bead supply tube 4 and is fixed with a pull ring. When only water needs to be added, the insert plate 431 can be used to prevent the zirconium beads from falling.

[0050] In the present invention, a water pump 44 for replenishing liquid grinding aid is fixed to the outer wall of the zirconium bead supply cylinder 4 between the guide mechanism 43 and the control mechanism 45. The water outlet of the water pump 44 is connected to a water pipe extending into the zirconium bead supply cylinder 4, and the water inlet of the water pump 44 is connected to an external supply device through a hose. Water not only serves as a liquid grinding aid but also drives the zirconium beads to fall.

[0051] In the present invention, the control mechanism 45 is installed between the front and rear side walls of the zirconium bead supply cylinder 4 near the bottom end. The control mechanism 45 includes two rotating shafts 450 arranged side by side. The two rotating shafts 450 are respectively close to the left and right inner walls of the zirconium bead supply cylinder 4. The opposite parts of the outer walls of the two rotating shafts 450 are fixed with rotating plates 451. The opposite surfaces of the two rotating plates 451 are tightly fitted, which can control the speed at which the zirconium beads enter the feed pipe 20, so that the zirconium beads can enter the feed pipe 20 smoothly, thereby ensuring the grinding effect.

[0052] Specifically, one end of the rotating shaft 450 extends to the outside of the zircon bead supply cylinder 4 and is fixedly sleeved with a gear 452. An electric push rod 453 is fixed to the outer wall of the zircon bead supply cylinder 4 between the two gears 452. The bottom end of the telescopic end of the electric push rod 453 is fixed with an I-shaped piece 454. The opposite surfaces of the two vertical plates of the I-shaped piece 454 are fixed with racks 455 that mesh with the adjacent gears 452. The telescopic end of the electric push rod 453 pushes the I-shaped piece 454 down, and the rack 455 drives the gear 452 to rotate, causing the two rotating plates 451 to deflect downward at the same time, and the zirconium beads fall from the gap between the two rotating plates 451.

[0053] The working principle of the device for adding zirconium beads online to a sand mill in titanium dioxide production of the present invention is as follows: raw materials are added to the raw material supply cylinder 3, the driving motor 21 is started, the roller 22 rotates accordingly, and the spiral plate 23 feeds the raw materials into the sand mill. After a period of operation, the zirconium beads in the sand mill are worn out.

[0054] The zirconium beads that need to be replenished are added to the storage cylinder 420, and the control motor 406 is started. The output shaft of the control motor 406 drives the dial 407 to rotate, and the dial 407 drives the groove wheel 402 to rotate intermittently, and the rotating drum 400 rotates intermittently accordingly. During the rotation of the rotating drum 400, the zirconium beads in the space corresponding to the discharge chute 41 fall into the zirconium bead supply cylinder 4;

[0055] When the drum 400 is not rotating, the bottom end of the Y-shaped member 424 contacts the convex portion of the wave plate 404, and the zirconium beads fall from the inclined cylinder 421 into the drum 400. At the same time, the spring 425 is compressed. When the drum 400 is about to rotate, the spring 425 drives the bottom end of the Y-shaped member 424 to gradually descend, and the movable plate 422 closes the inclined cylinder 421. The movable plate 422 repeatedly rises and falls, allowing the zirconium beads to be intermittently added to the drum 400.

[0056] The zirconium beads are guided by two inclined plates 430 to continue falling downwards. When only water needs to be added, the insert plate 431 is used to stop the zirconium beads from falling.

[0057] The water pump 44 can replenish water, which acts as a liquid grinding aid to assist in grinding the titanium dioxide, and can also drive the zirconium beads to move downward;

[0058] Start the electric push rod 453, and the telescopic end of the electric push rod 453 pushes the workpiece 454 down, and the racks 455 on both sides descend accordingly, driving the gear 452 to rotate. The two rotating shafts 450 rotate and cause the rotating plate 451 to rotate downward at the same time, which can control the speed at which the zirconium beads enter the feed pipe 20, so that the zirconium beads can be added smoothly to ensure the grinding effect.

[0059] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the invention and various options and modifications. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. An online zirconium bead adding device for a sand mill in titanium dioxide production, comprising a feeding mechanism (2) mounted on the top surface of a base (1), the feeding mechanism (2) comprising a feeding pipe (20) fixed to the middle of the base (1), characterized in that: The top of the feed pipe (20) is provided with a raw material supply cylinder (3) and a zirconium bead supply cylinder (4) in sequence from front to back, and further includes: An adding mechanism (40) for quantitatively adding zirconium beads, the adding mechanism (40) comprising a rotating drum (400) rotatably connected to the center of the top surface of the zirconium bead supply drum (4) via a rotating rod (401), the rotating drum (400) being through-through, a plurality of annular partitions (403) distributed at equal intervals being fixed between the outer wall of the rotating rod (401) and the inner wall of the rotating drum (400), and a wave plate (404) being fixed to the top surface of the rotating drum (400); A feed trough (41) is provided on the top wall of the zirconium bead supply cylinder (4), wherein the feed trough (41) corresponds to a spatial position formed by one pair of adjacent partitions (403) and has a size that matches the spatial position; A feeding mechanism (42) for intermittent feeding, the feeding mechanism (42) includes a storage cylinder (420) fixed obliquely above the zirconium bead supply cylinder (4) through an oblique column, an oblique cylinder (421) is installed at the bottom end of one side of the storage cylinder (420) close to the zirconium bead supply cylinder (4), the oblique cylinder (421) extends above the space formed by one pair of adjacent partitions (403), the oblique cylinder (421) is slidably connected with a movable plate (422) above the rotating cylinder (400), the top of the front and rear side surfaces of the movable plate (422) are fixed with mounting plates (423), the bottom surfaces of the two mounting plates (423) are fixed with the same Y-shaped piece (424), and the bottom end of the Y-shaped piece (424) is tightly fitted with the top surface of the wave plate (404); A guiding mechanism (43) for guiding the zirconium beads to fall, the guiding mechanism (43) being installed between the front and rear side walls of the zirconium bead supply cylinder (4) near the top end; a control mechanism (45) for controlling the falling speed of the zirconium beads, the control mechanism (45) being installed between the front and rear side walls of the zirconium bead supply cylinder (4) near the bottom end; The adding mechanism (40) further comprises a bracket (405) fixed to the outer side wall of the zirconium bead supply cylinder (4) near the top end, the bracket (405) is in an inverted L-shape, the horizontal plate of the bracket (405) extends above the rotating rod (401), a control motor (406) is fixed to the top surface of the bracket (405) near the rotating rod (401), the output shaft of the control motor (406) passes through the horizontal plate of the bracket (405) and is fixedly sleeved with a dial (407), the The outer wall fixed sleeve of the rotating rod (401) is provided with a groove wheel (402) that cooperates with the dial (407). The output shaft of the control motor (406) drives the dial (407) to move, and the dial (407) drives the groove wheel (402) to rotate intermittently, so that the rotating drum (400) rotates intermittently. The Y-shaped member (424) moves up and down repeatedly with the wave plate (404), and then when the rotating drum (400) is about to rotate, the movable plate (422) descends to prevent the zirconium beads from entering the rotating drum (400).

2. The device for adding zirconium beads online to a sand mill in titanium dioxide production according to claim 1, characterized in that: The feeding mechanism (2) further comprises a driving motor (21) fixed at the center of the front side of the feeding pipe (20), wherein the output shaft of the driving motor (21) extends into the feeding pipe (20) and is fixedly sleeved with a roller (22), and a spiral plate (23) is fixed to the outer wall of the roller (22).

3. The device for adding zirconium beads online to a sand mill in titanium dioxide production according to claim 1, characterized in that: The top end of the rotating rod (401) is rotatably connected to the bottom surface of the bracket (405).

4. The device for adding zirconium beads online to a sand mill in titanium dioxide production according to claim 1, characterized in that: The position of the radial groove of the sheave (402) corresponds one-to-one to the position of the partition (403), and the position of the concave portion of the wave plate (404) corresponds one-to-one to the position of the partition (403).

5. The device for adding zirconium beads online to a sand mill in titanium dioxide production according to claim 1, characterized in that: A plurality of springs (425) are regularly installed between the top surface of the transverse plate of the Y-shaped member (424) and the bottom surface of the inclined cylinder (421), and the height of the movable plate (422) is greater than the height of the convex portion of the wave plate (404).

6. The device for adding zirconium beads online to a sand mill in titanium dioxide production according to claim 1, characterized in that: The guide mechanism (43) comprises two inclined plates (430) arranged opposite to each other, an inserting plate (431) is slidably inserted between the bottom ends of the two inclined plates (430), and one end of the inserting plate (431) extends outside the zirconium bead supply cylinder (4) and is fixed with a pull ring.

7. The device for adding zirconium beads online to a sand mill in titanium dioxide production according to claim 1, characterized in that: A water pump (44) for replenishing liquid grinding aid is also fixed on the outer wall of the zirconium bead supply cylinder (4) between the guide mechanism (43) and the control mechanism (45). The water outlet of the water pump (44) is connected to a water pipe extending into the zirconium bead supply cylinder (4), and the water inlet of the water pump (44) is connected to an external supply device through a hose.

8. The device for adding zirconium beads online to a sand mill in titanium dioxide production according to claim 1, characterized in that: The control mechanism (45) includes two rotating shafts (450) arranged side by side. The two rotating shafts (450) are respectively close to the left and right inner walls of the zirconium bead supply cylinder (4). The opposite parts of the outer side walls of the two rotating shafts (450) are fixed with rotating plates (451). The opposite surfaces of the two rotating plates (451) are tightly fitted.

9. The device for adding zirconium beads online to a sand mill in titanium dioxide production according to claim 8, characterized in that: One end of the rotating shaft (450) extends to the outside of the zirconium bead supply cylinder (4) and is fixedly sleeved with a gear (452). An electric push rod (453) is fixed between the two gears (452) on the outer wall of the zirconium bead supply cylinder (4). An I-shaped piece (454) is fixed to the bottom end of the telescopic end of the electric push rod (453). Racks (455) meshing with adjacent gears (452) are fixed to the opposite surfaces of the two vertical plates of the I-shaped piece (454).

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