Wet titanium dioxide drying equipment

Abstract

The invention discloses wet titanium dioxide drying equipment, and relates to the technical field of titanium dioxide production. The wet titanium dioxide drying equipment comprises a device body, the device body further comprises a material attaching and extruding mechanism connected with a hollow shaft, and the material attaching and extruding mechanism is used for extruding wet titanium dioxide entering a drying barrel and attaching the wet titanium dioxide to the inner wall of the drying barrel; the material attaching and extruding mechanism comprises a plurality of partition plates connected with the hollow shaft, arc-shaped plates arranged between every two adjacent partition plates and a driving mechanism for driving the arc-shaped plates to ascend and descend. According to the wet titanium dioxide drying equipment, wet titanium dioxide is sequentially supplied into the multiple drying cavities, meanwhile, the driving mechanism is used for driving the arc-shaped plates to move, the wet titanium dioxide in the drying cavities is extruded, accumulation at the bottom of the drying barrel is avoided, the wet titanium dioxide can be attached to the inner wall of the drying barrel to be heated and dried, and the drying efficiency is improved. And the drying efficiency and effect are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of titanium dioxide production, in particular to a wet-state titanium dioxide drying equipment. BACKGROUND

[0002] After the surface modification or coating of titanium dioxide, a drying equipment is needed to dry the wet-state titanium dioxide to remove water or solvent. A vacuum rake dryer is commonly used for drying wet-state titanium dioxide. Through heating and negative pressure environment, the water in the material is quickly evaporated, and at the same time, the damage of the modified layer by high temperature is avoided. The internal rake stirrer can continuously stir the material to realize the drying operation of the wet-state titanium dioxide. It is a commonly used model for titanium dioxide vacuum drying, and is suitable for processing paste and filter cake wet materials.

[0003] However, when the existing vacuum rake dryer is used, the wet-state titanium dioxide is easy to accumulate at the bottom of the drying cylinder when entering the inside of the drying cylinder through the top feed valve. Although the internal rake stirrer can continuously stir the material, it cannot completely adhere to the inner wall of the drying cylinder for heating and drying, which affects the efficiency and effect of the drying of the wet-state titanium dioxide. SUMMARY

[0004] The purpose of the present application is to provide a wet-state titanium dioxide drying equipment which can completely adhere to the inner wall of the drying cylinder for heating and drying, so as to solve the problem that the wet-state titanium dioxide is easy to accumulate at the bottom and cannot completely adhere to the inner wall of the drying cylinder for heating and drying as mentioned in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a wet-state titanium dioxide drying equipment, comprising a device main body, the device main body comprising a drying cylinder, a vacuum extraction port communicated with the drying cylinder, and a discharge valve communicated with the drying cylinder; the drying cylinder comprises a jacket; the jacket comprises a heat conducting oil inlet and a heat conducting oil outlet; the device main body further comprises a hollow shaft rotating in the drying cylinder and a speed reducer driving the hollow shaft to rotate, and the device main body further comprises a material adhering and extruding mechanism connected with the hollow shaft, for extruding the wet-state titanium dioxide entering the drying cylinder and adhering to the inner wall of the drying cylinder. The material adhering and extruding mechanism comprises a plurality of baffles connected with the hollow shaft, an arc-shaped plate arranged between adjacent two baffles, and a driving mechanism driving the arc-shaped plate to move up and down; the baffles, the arc-shaped plate and the inner wall of the drying cylinder form a drying cavity; the vacuum extraction port is communicated with the drying cavity; the baffle comprises a filter plate, so that the filter plate can slide along the inner wall of the drying cylinder.

[0006] Preferably, the driving mechanism comprises a lifting plate, a fixed plate connected with the partition plate, and a first spring telescopic sleeve rod connected between the fixed plate and the lifting plate; the driving mechanism further comprises an iron block connected with the lifting plate and an electromagnet connected with the fixed plate; the electromagnet is oppositely arranged with the iron block; the driving mechanism further comprises a connecting plate and a second spring telescopic sleeve rod connected between the connecting plate and the lifting plate; the driving mechanism further comprises a sliding mechanism connected between the arc-shaped plate and the connecting plate and a pushing mechanism for pushing the arc-shaped plate to move.

[0007] Preferably, the sliding mechanism comprises a guide rail connected with the arc-shaped plate, a sliding groove opened on the connecting plate, and a third spring telescopic sleeve rod connected between the connecting plate and the arc-shaped plate, so that the guide rail can slide in the sliding groove.

[0008] Preferably, the pushing mechanism comprises a cam, a supporting plate connected with the lifting plate, and a rotating shaft connected between the supporting plate and the cam; the pushing mechanism further comprises a pushing plate connected with the arc-shaped plate, so that the cam can slide on the side wall of the pushing plate; the pushing mechanism further comprises a roller connected with the rotating shaft, so that the roller can roll on the inner wall of the end of the drying cylinder; the arc-shaped plate comprises a rubber plate, so that the rubber plate can abut against the inner walls of the two ends of the drying cylinder.

[0009] Preferably, the device body further comprises an agitating mechanism for agitating the wet titanium dioxide in the drying cavity; the agitating mechanism comprises a plurality of fixed rods connected with the arc-shaped plate and a plurality of rolling balls connected with the ends of the fixed rods.

[0010] Preferably, the device body further comprises a feeding mechanism arranged at the top of the drying cylinder for feeding the wet titanium dioxide; the feeding mechanism comprises a fixed cover in communication with the drying cavity, a moving pipe arranged in the fixed cover, and a moving mechanism for driving the moving pipe to move; the feeding mechanism further comprises a rotating pipe rotationally connected with the moving pipe, a plurality of feeding pipes in communication with the rotating pipe, and a first driving assembly for driving the rotating pipe to rotate; the rotating pipe is in communication with the moving pipe; the feeding mechanism further comprises a feeding valve connected with the fixed cover and an elastic pipe in communication between the feeding valve and the moving pipe.

[0011] Preferably, the moving mechanism comprises a forward-reverse thread rod rotationally connected with the fixed cover, a nut block matched with the forward-reverse thread rod, and a second driving assembly for driving the forward-reverse thread rod to rotate; the moving mechanism further comprises a guiding mechanism for guiding the nut block; the moving pipe is connected with the nut block.

[0012] Preferably, the first driving assembly comprises a circular ring connected with the rotating pipe and a friction plate connected with the inner wall of the fixed cover, so that the circular ring can roll on the friction plate.

[0013] Preferably, the guiding mechanism comprises a guiding rod connected with the fixed cover and a connecting block connected with the side wall of the nut slider; the connecting block is sleeved with the side wall of the guiding rod.

[0014] Preferably, the second driving assembly comprises a driving pulley connected with the hollow shaft, a driven pulley connected with the positive and negative toothed rod, and a belt connected between the driving pulley and the driven pulley.

[0015] Compared with the prior art, the present application has the following beneficial effects: The wet titanium dioxide drying equipment sets the material adhering and extruding mechanism, etc., to feed the wet titanium dioxide into multiple drying cavities in sequence, and uses the driving mechanism to drive the arc-shaped plate to move and extrude the wet titanium dioxide in the drying cavities, so that the wet titanium dioxide can adhere to the inner wall of the drying cylinder for heating and drying, improving the drying efficiency and effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 It is a schematic diagram of the overall structure of the present application from another perspective;

[0018] Figure 3 It is a schematic diagram of the structure of the second driving assembly in the present application;

[0019] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the drying cylinder in the present application;

[0020] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the drying cylinder in the present application from another perspective;

[0021] Figure 6 It is a schematic diagram of the structure of the feeding mechanism in the present application;

[0022] Figure 7 It is a schematic diagram of the structure of the feeding mechanism in the present application from another perspective;

[0023] Figure 8 It is a schematic diagram of the structure of the material adhering and extruding mechanism and the driving mechanism in the present application;

[0024] Figure 9 It is a schematic diagram of the position of the driving mechanism in the present application.

[0025] In the figure: 1, device main body; 101, drying cylinder; 102, jacket; 103, heat conducting oil inlet; 104, heat conducting oil outlet; 105, hollow shaft; 106, speed reducer; 107, vacuumizing port; 108, discharge valve; 2, stirring mechanism; 201, fixed rod; 202, ball; 3, driving mechanism; 301, fixed plate; 302, first spring telescopic sleeve rod; 303, lifting plate; 304, second spring telescopic sleeve rod; 305, connecting plate; 306, iron block; 307, electromagnet; 4, sliding mechanism; 401, sliding groove; 402, guide rail; 403, third spring telescopic sleeve rod; 5, pushing mechanism; 501, support plate; 502, rotating shaft; 503, cam; 504, roller; 505, pushing plate; 6, feeding mechanism; 601, fixed cover; 602, feeding valve; 603, moving pipe; 604, rotating pipe; 605, feeding pipe; 606, telescopic pipe; 7, first driving assembly; 701, circular ring; 702, friction plate; 8, moving mechanism; 801, nut slider; 802, reversible thread rod; 9, second driving assembly; 901, driving pulley; 902, driven pulley; 903, belt; 10, guiding mechanism; 1001, connecting block; 1002, guiding rod; 11, material adhering and extruding mechanism; 1101, partition plate; 1102, filter plate; 1103, arc plate; 1104, rubber plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-9 The present application provides a wet titanium dioxide drying equipment, which comprises a device main body 1, the device main body 1 comprises a drying cylinder 101, a vacuumizing port 107 communicated with the drying cylinder 101 and a discharge valve 108 communicated with the drying cylinder 101, the inlet of the vacuumizing port 107 is provided with a filter screen to reduce the possibility of titanium dioxide being extracted; the drying cylinder 101 comprises a jacket 102; the jacket 102 comprises a heat conducting oil inlet 103 and a heat conducting oil outlet 104; the device main body 1 further comprises a hollow shaft 105 rotating in the drying cylinder 101 and a speed reducer 106 driving the hollow shaft 105 to rotate, both of which are well-known technologies in the technical field and will not be described here, and the device main body 1 further comprises a material adhering and extruding mechanism 11 connected with the hollow shaft 105, which is used for extruding the wet titanium dioxide entering the drying cylinder 101 and adhering to the inner wall of the drying cylinder 101; The material adhering and extruding mechanism 11 comprises a plurality of partitions 1101 connected with the hollow shaft 105, arc-shaped plates 1103 arranged between two adjacent partitions 1101, and a driving mechanism 3 for driving the arc-shaped plates 1103 to move up and down; the partitions 1101, the arc-shaped plates 1103 and the inner wall of the drying cylinder 101 form drying cavities; the vacuumizing port 107 is communicated with the drying cavities; the partition 1101 comprises a filter plate 1102, the filter holes of the filter plate 1102 ensure that air can pass through but titanium dioxide cannot, so that the filter plate 1102 can slide along the inner wall of the drying cylinder 101, wet titanium dioxide is sequentially supplied into a plurality of drying cavities, at the same time, the arc-shaped plates 1103 are driven to move by the driving mechanism 3 and wet titanium dioxide in the drying cavities is extruded to avoid accumulation at the bottom of the drying cylinder 101, and the wet titanium dioxide can adhere to the inner wall of the drying cylinder 101 for heating and drying, improving the efficiency and effect of drying.

[0028] The driving mechanism 3 comprises a lifting plate 303, a fixed plate 301 connected with the partition 1101, and a first spring telescopic sleeve rod 302 connected between the fixed plate 301 and the lifting plate 303; the driving mechanism 3 further comprises an iron block 306 connected with the lifting plate 303 and an electromagnet 307 connected with the fixed plate 301; the electromagnet 307 is arranged opposite to the iron block 306, the electromagnet 307 is a vacuum high-temperature resistant sealed electromagnet, and a connecting wire can be led out through the hollow shaft 105; the driving mechanism 3 further comprises a connecting plate 305 and a second spring telescopic sleeve rod 304 connected between the connecting plate 305 and the lifting plate 303; the driving mechanism 3 further comprises a sliding mechanism 4 connected between the arc-shaped plate 1103 and the connecting plate 305 and a pushing mechanism 5 for pushing the arc-shaped plate 1103 to move; after wet titanium dioxide is sequentially supplied into the drying cavities by the feeding mechanism 6, the electromagnet 307 is powered off, the lifting plate 303 can move away from the fixed plate 301 under the action of the first spring telescopic sleeve rod 302, and the connecting plate 305 is driven to move by the second spring telescopic sleeve rod 304, and then the arc-shaped plate 1103 is driven to move by the sliding mechanism 4; when the arc-shaped plate 1103 abuts against the wet titanium dioxide, the second spring telescopic sleeve rod 304 is gradually compressed, at this time, the wet titanium dioxide can be extruded and laid flat to adhere to the inner wall of the drying cylinder 101 to form a thin layer, at the same time, accumulation of the wet titanium dioxide can be avoided, heat conduction and exchange are strengthened, and the efficiency and effect of heating and drying are improved; and under the action of the second spring telescopic sleeve rod 304, low-pressure flexible extrusion is adopted to avoid strong extrusion and clumping.

[0029] The sliding mechanism 4 comprises a guide rail 402 connected with the arc-shaped plate 1103, a sliding groove 401 opened on the connecting plate 305, and a third spring telescopic sleeve rod 403 connected between the connecting plate 305 and the arc-shaped plate 1103, so that the guide rail 402 can slide in the sliding groove 401. When the arc-shaped plate 1103 moves, the guide rail 402 can slide in the sliding groove 401, the third spring telescopic sleeve rod 403 deforms, and can guide and reset the movement of the arc-shaped plate 1103.

[0030] The pushing mechanism 5 comprises a cam 503, a supporting plate 501 connected with the lifting plate 303, and a rotating shaft 502 connected between the supporting plate 501 and the cam 503; the pushing mechanism 5 further comprises a pushing plate 505 connected with the arc-shaped plate 1103, so that the cam 503 can slide on the side wall of the pushing plate 505; the pushing mechanism 5 further comprises a roller 504 connected with the rotating shaft 502, so that the roller 504 can roll on the inner wall of the end of the drying cylinder 101; the arc-shaped plate 1103 comprises a rubber plate 1104, so that the rubber plate 1104 can abut against the inner walls of the two ends of the drying cylinder 101. When the baffle 1101 and the arc-shaped plate 1103 rotate, the roller 504 can roll on the inner end face of the drying cylinder 101, so as to drive the cam 503 to rotate through the rotating shaft 502. When the tip of the cam 503 abuts against the side wall of the pushing plate 505, the arc-shaped plate 1103 can be pushed to move. Meanwhile, the rubber plate 1104 deforms, so as to push the arc-shaped plate 1103 during the rotation of the baffle 1101 and the arc-shaped plate 1103, which is more convenient and fast. In addition, the rubber plate 1104 is elastic, so as to ensure that the rubber plate 1104 is always sealed with the inner end face of the drying cylinder 101 when the arc-shaped plate 1103 reciprocally moves.

[0031] The device main body 1 further comprises an agitating mechanism 2 for agitating the wet titanium dioxide in the drying cavity. The agitating mechanism 2 comprises a plurality of fixed rods 201 connected with the arc-shaped plate 1103 and a plurality of balls 202 connected with the end portions of the fixed rods 201. When the arc-shaped plate 1103 reciprocally moves, the fixed rods 201 and the balls 202 are driven to synchronously reciprocally move, so as to agitate and disperse the wet titanium dioxide in the drying cavity, so that the wet titanium dioxide is more uniformly dried. Meanwhile, the air and water vapor are conveniently discharged, and the efficiency and effect of the heating and drying are improved. In addition, when the balls 202 abut against the inner wall of the drying cylinder 101, the balls 202 can roll along the inner wall of the drying cylinder 101, so as to reduce the frictional resistance.

[0032] The device body 1 further comprises a feeding mechanism 6 arranged at the top of the drying cylinder 101 for feeding the wet titanium dioxide; the feeding mechanism 6 comprises a fixed cover 601 communicated with the drying cavity, a moving pipe 603 arranged in the fixed cover 601, and a moving mechanism 8 for driving the moving pipe 603 to move; the feeding mechanism 6 further comprises a rotating pipe 604 rotatably connected with the moving pipe 603, a plurality of feeding pipes 605 communicated with the rotating pipe 604, and a first driving assembly 7 for driving the rotating pipe 604 to rotate; the rotating pipe 604 is communicated with the moving pipe 603; the feeding mechanism 6 further comprises a feeding valve 602 connected with the fixed cover 601 and an extension pipe 606 communicated between the feeding valve 602 and the moving pipe 603; the wet titanium dioxide is fed into the feeding valve 602, and then falls into the drying cavity through the extension pipe 606, the moving pipe 603, the rotating pipe 604 and the feeding pipe 605; at the same time, the moving pipe 603 is driven to reciprocate by the moving mechanism 8, and the rotating pipe 604 is driven to rotate by the first driving assembly 7; under the action of centrifugal force, the wet titanium dioxide is scattered into the drying cavity, so that the wet titanium dioxide is more uniformly dispersed when entering the drying cavity, avoiding accumulation at the bottom of the drying cylinder 101, ensuring the efficiency and effect of drying, and making the extrusion fitting effect better.

[0033] The moving mechanism 8 comprises a positive and negative thread rod 802 rotatably connected with the fixed cover 601, a nut block 801 matched with the positive and negative thread rod 802, and a second driving assembly 9 for driving the positive and negative thread rod 802 to rotate; the moving mechanism 8 further comprises a guide mechanism 10 for guiding the nut block 801; the moving pipe 603 is connected with the nut block 801, and the positive and negative thread rod 802 is driven to rotate by the second driving mechanism 3; at this time, the nut block 801 can be pushed to reciprocate along the positive and negative thread rod 802, which is more convenient and fast.

[0034] The first driving assembly 7 comprises a circular ring 701 connected with the rotating pipe 604 and a friction plate 702 connected with the inner wall of the fixed cover 601, so that the circular ring 701 can roll on the friction plate 702; when the rotating pipe 604 moves, the circular ring 701 can be driven to roll on the friction plate 702, and the feeding pipe 605 is driven to rotate by the rotating pipe 604; under the action of centrifugal force, the wet titanium dioxide is scattered into the drying cavity, so that the wet titanium dioxide is more uniformly dispersed when entering the drying cavity.

[0035] The guide mechanism 10 comprises a guide rod 1002 connected with the fixed cover 601 and a connecting block 1001 connected with the side wall of the nut block 801; the connecting block 1001 is sleeved on the side wall of the guide rod 1002, and can guide the movement of the nut block 801.

[0036] The second driving assembly 9 comprises a driving pulley 901 connected with the hollow shaft 105, a driven pulley 902 connected with the reversible toothed rod 802, and a belt 903 connected between the driving pulley 901 and the driven pulley 902, and the speed reducer 106 is started, and the rotation of the speed reducer 106 can drive the plurality of partitions 1101 to rotate through the hollow shaft 105, when the hollow shaft 105 rotates, the driving pulley 901 is driven to rotate, and the driven pulley 902 is driven to rotate through the belt 903, and the reversible toothed rod 802 is driven to rotate, at this time, the nut sliding block 801 is driven to reciprocate along the reversible toothed rod 802, without the need of using an additional motor to drive, thereby reducing the equipment use cost.

[0037] Working principle: in use, when the wet titanium dioxide needs to be dried, the wet titanium dioxide is supplied through the feeding valve 602, then falls into the drying cavity through the telescopic pipe 606, the moving pipe 603, the rotating pipe 604 and the feeding pipe 605, at the same time, the speed reducer 106 is started, the rotation of the speed reducer 106 can drive the plurality of partitions 1101 to rotate through the hollow shaft 105, and the arc-shaped plate 1103 is driven to rotate through the driving mechanism 3, so that the wet titanium dioxide can enter each drying cavity in turn, and the external equipment is used to perform vacuumizing operation on the drying cavity through the vacuumizing port 107.

[0038] When the hollow shaft 105 rotates, the driving pulley 901 is driven to rotate, and the driven pulley 902 is driven to rotate through the belt 903, and the reversible toothed rod 802 is driven to rotate, at this time, the nut sliding block 801 is driven to reciprocate along the reversible toothed rod 802, at the same time, the connecting block 1001 reciprocates on the guide rod 1002, and the feeding pipe 605 is driven to reciprocate through the moving pipe 603 and the rotating pipe 604, and when the rotating pipe 604 moves, the circular ring 701 is driven to roll on the friction plate 702, and the feeding pipe 605 is driven to rotate through the rotating pipe 604, under the action of centrifugal force, the wet titanium dioxide is scattered into the drying cavity, so that the wet titanium dioxide is more uniformly dispersed when entering the drying cavity, avoiding accumulation at the bottom of the drying cylinder 101, and ensuring the drying efficiency and effect.

[0039] After the wet titanium dioxide enters the drying cavity, the electromagnet 307 is powered off, the lifting plate 303 can move away from the fixed plate 301 under the action of the first spring telescopic sleeve rod 302, and drive the connecting plate 305 to move through the second spring telescopic sleeve rod 304, and then drive the arc plate 1103 to move through the sliding mechanism 4, when the arc plate 1103 abuts against the wet titanium dioxide, the second spring telescopic sleeve rod 304 is gradually compressed, at this time, it can be extruded and laid flat to adhere to the inner wall of the drying cylinder 101, forming a thin layer, at the same time, it can avoid the accumulation of wet titanium dioxide, strengthen the conduction heat transfer, improve the efficiency and effect of heating and drying, and under the action of the second spring telescopic sleeve rod 304, low-pressure flexible extrusion is adopted to avoid strong extrusion and clumping.

[0040] At the same time, when the partition plate 1101 and the arc plate 1103 rotate, the roller 504 can roll on the inner end face of the drying cylinder 101, so as to drive the cam 503 to rotate through the rotating shaft 502, when the tip of the cam 503 abuts against the side wall of the push plate 505, the arc plate 1103 can be pushed to move, at the same time, the rubber plate 1104 deforms, and the connecting plate 305 can be driven to slide along the guide rail 402, the third spring telescopic sleeve rod 403 is stretched, when the tip of the cam 503 passes over the side wall of the push plate 505, the connecting plate 305 can move back to the original position under the action of the third spring telescopic sleeve rod 403, and drive the arc plate 1103 to move back to the original position, so as to drive the arc plate 1103 to move back and forth, when the arc plate 1103 moves back and forth, the fixed rod 201 and the ball 202 move back and forth synchronously, which can agitate and disperse the wet titanium dioxide in the drying cavity, so that the wet titanium dioxide is more uniform during drying, at the same time, it is convenient to exhaust air and water vapor, and the efficiency and effect of heating and drying are improved.

[0041] After the wet titanium dioxide in the drying cavity is completely dried, open the discharge valve 108, when the arc plate 1103 rotates to the lower side of the hollow shaft 105, power on the electromagnet 307, the electromagnet 307 is powered on to attract the iron block 306, so that the lifting plate 303 moves upward and can drive the connecting plate 305 and the arc plate 1103 to move upward, then power off the electromagnet 307, so that the arc plate 1103 can move downward to the original position, so as to drive the fixed rod 201 and the ball 202 to impact and crush the dried wet titanium dioxide, at the same time, when the arc plate 1103 moves back and forth through the push mechanism 5, the fixed rod 201 and the ball 202 can move back and forth, which can also agitate and disperse the dried wet titanium dioxide, so as to crush the clumped wet titanium dioxide, and discharge it through the discharge valve 108, avoid the discharge valve 108 from being blocked, improve the efficiency and effect of drying, and reduce the rotating speed of the hollow shaft 105 during discharging.

Claims

1. A wet titanium dioxide drying device, comprising a device body (1), the device body (1) comprising a drying cylinder (101), a vacuum extraction port (107) in communication with the drying cylinder (101), and a hollow shaft (105) disposed in the drying cylinder (101), characterized in that: The device body (1) further comprises a material adhering and extruding mechanism (11) connected with the hollow shaft (105), which is used for extruding the wet titanium dioxide entering the drying cylinder (101) and adhering to the inner wall of the drying cylinder (101). The material adhering and extruding mechanism (11) comprises a plurality of partitions (1101) connected with the hollow shaft (105), an arc-shaped plate (1103) arranged between two adjacent partitions (1101), and a driving mechanism (3) for driving the arc-shaped plate (1103) to move up and down; the partitions (1101), the arc-shaped plate (1103) and the inner wall of the drying cylinder (101) form a drying cavity; the vacuumizing port (107) is in communication with the drying cavity; the partition (1101) comprises a filter plate (1102) which can slide along the inner wall of the drying cylinder (101).

2. The wet titanium dioxide drying apparatus according to claim 1, characterized in that: The driving mechanism (3) comprises a lifting plate (303), a fixed plate (301) connected with the partition (1101), and a first spring telescopic sleeve rod (302) connected between the fixed plate (301) and the lifting plate (303); the driving mechanism (3) further comprises an iron block (306) connected with the lifting plate (303) and an electromagnet (307) connected with the fixed plate (301); the electromagnet (307) is arranged opposite to the iron block (306); the driving mechanism (3) further comprises a connecting plate (305) and a second spring telescopic sleeve rod (304) connected between the connecting plate (305) and the lifting plate (303); the driving mechanism (3) further comprises a sliding mechanism (4) connected between the arc-shaped plate (1103) and the connecting plate (305), and a pushing mechanism (5) for pushing the arc-shaped plate (1103) to move.

3. The wet titanium dioxide drying apparatus according to claim 2, characterized in that: The sliding mechanism (4) comprises a guide rail (402) connected with the arc-shaped plate (1103), a sliding groove (401) formed in the connecting plate (305), and a third spring telescopic sleeve rod (403) connected between the connecting plate (305) and the arc-shaped plate (1103), so that the guide rail (402) can slide in the sliding groove (401).

4. The wet titanium dioxide drying apparatus according to claim 2, characterized in that: The pushing mechanism (5) comprises a cam (503), a support plate (501) connected with the lifting plate (303), and a rotating shaft (502) connected between the support plate (501) and the cam (503); the pushing mechanism (5) further comprises a pushing plate (505) connected with the arc-shaped plate (1103), so that the cam (503) can slide on the side wall of the pushing plate (505); the pushing mechanism (5) further comprises a roller (504) connected with the rotating shaft (502), so that the roller (504) can roll on the inner wall of the end of the drying cylinder (101); the arc-shaped plate (1103) comprises a rubber plate (1104), so that the rubber plate (1104) can abut against the inner wall of the two ends of the drying cylinder (101).

5. The wet titanium dioxide drying apparatus according to claim 1, characterized in that: The device body (1) further comprises an agitating mechanism (2) for agitating the wet titanium dioxide in the drying cavity; the agitating mechanism (2) comprises a plurality of fixed rods (201) connected with the arc-shaped plate (1103) and a plurality of rolling balls (202) connected to the ends of the fixed rods (201).

6. The wet titanium dioxide drying apparatus according to claim 1, characterized in that: The device body (1) further comprises a feeding mechanism (6) arranged at the top of the drying cylinder (101) for feeding the wet titanium dioxide; the feeding mechanism (6) comprises a fixed cover (601) in communication with the drying cavity, a moving pipe (603) arranged in the fixed cover (601), and a moving mechanism (8) for driving the moving pipe (603) to move; the feeding mechanism (6) further comprises a rotating pipe (604) rotatably connected with the moving pipe (603), a plurality of feeding pipes (605) in communication with the rotating pipe (604), and a first driving assembly (7) for driving the rotating pipe (604) to rotate; the rotating pipe (604) is in communication with the moving pipe (603); the feeding mechanism (6) further comprises a feeding valve (602) connected with the fixed cover (601) and an elastic pipe (606) in communication between the feeding valve (602) and the moving pipe (603).

7. A wet titanium dioxide drying apparatus according to claim 6, characterized in that: The moving mechanism (8) comprises a forward-reverse screw rod (802) rotatably connected with the fixed cover (601), a nut block (801) matched with the forward-reverse screw rod (802), and a second driving assembly (9) for driving the forward-reverse screw rod (802) to rotate; the moving mechanism (8) further comprises a guide mechanism (10) for guiding the nut block (801); the moving pipe (603) is connected with the nut block (801).

8. The wet titanium dioxide drying apparatus according to claim 6, characterized in that: The first driving assembly (7) comprises a circular ring (701) connected with the rotating pipe (604) and a friction plate (702) connected to the inner wall of the fixed cover (601), so that the circular ring (701) can roll on the friction plate (702).

9. The wet titanium dioxide drying apparatus according to claim 7, characterized in that: The guide mechanism (10) comprises a guide rod (1002) connected with the fixed cover (601) and a connecting block (1001) connected to the side wall of the nut block (801); the connecting block (1001) is sleeved on the side wall of the guide rod (1002).

10. The wet titanium dioxide drying apparatus according to claim 7, characterized in that: The second driving assembly (9) comprises a driving pulley (901) connected with a hollow shaft (105), a driven pulley (902) connected with the forward-reverse screw rod (802), and a belt (903) connected between the driving pulley (901) and the driven pulley (902).

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