Acidolysis device for titanium dioxide production

Abstract

The utility model discloses an acidolysis device for titanium dioxide production, which comprises a cylinder, and a feed port is arranged at the top of the left side of the cylinder. Concentrated sulfuric acid in the liquid storage box can be synchronously conveyed into the inner cavity of the cylinder through the sleeving arrangement of the liquid outlet pipe, the square pipe and the square hole circular pipe, and through the arrangement of the plurality of liquid discharge holes, after flowing into the inner cavity of the cylinder, the concentrated sulfuric acid can be discharged through the plurality of liquid discharge holes and is in contact with a falling material, so that the concentrated sulfuric acid is discharged. A driving motor drives a transmission shaft to rotate, a transmission bevel gear is meshed with a driven bevel gear to drive a square pipe to rotate, and a square hole round pipe rotates to drive a plurality of scrapers and stirring blades to rotate, so that materials and concentrated sulfuric acid can be stirred and mixed when falling, and meanwhile, the materials and the concentrated sulfuric acid can be stirred and mixed through the rotation of the plurality of stirring blades; materials and concentrated sulfuric acid can be quickly and uniformly stirred, and the processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of titanium dioxide processing equipment, in particular to an acid decomposition device for titanium dioxide production. Background Art

[0002] Titanium dioxide is an important inorganic chemical pigment, its main component being titanium dioxide. There are two production processes for titanium dioxide: the sulfuric acid process and the chloride process.

[0003] The acid hydrolysis process is an important step in the production of titanium dioxide using the sulfuric acid method. The acid hydrolysis process involves the acid hydrolysis of ground and dried ilmenite or titanium slag with concentrated sulfuric acid at a temperature of 150° to 180°.

[0004] When performing acid hydrolysis processing, the existing acid hydrolysis device first adds the material into the acid hydrolysis tank and then adds concentrated sulfuric acid to carry out the acid hydrolysis reaction. However, at the beginning of the reaction, the material and the concentrated sulfuric acid are not mixed evenly. In this way, the material and the concentrated sulfuric acid need to be stirred for a period of time to achieve sufficient contact and sufficient reaction. This method is time-consuming and the acid hydrolysis efficiency is not high. Therefore, the utility model proposes an acid hydrolysis device for titanium dioxide production to solve the above-mentioned technical problems. Utility Model Content

[0005] One of the purposes of this utility model is achieved by the following technical solution:

[0006] A kind of acid decomposition device for titanium dioxide production comprises a cylinder, a feed port is provided at the top left side of the cylinder, and a feeding box is provided on the left side of the feed port, and a discharge port is provided on the right side of the feeding box, a partition is fixedly connected to the inner cavity of the cylinder near the top, and a plurality of leakage holes are evenly provided on the partition, a first circular hole is provided at the center of the partition, and a square hole circular tube is rotatably connected to the inner cavity of the first circular hole, a plurality of stirring blades are fixedly connected to the outer wall of the lower half of the square hole circular tube, and a plurality of drainage holes are provided on the outer wall of the square hole circular tube, a second circular hole is provided at the center of the top of the cylinder, vertical plates are fixedly connected near the left and right sides of the top of the cylinder, and an electric telescopic rod is provided on the adjacent side of the two vertical plates, the bottom ends of the two electric telescopic rods are fixedly connected to the top of the cylinder, and the power ends of the two electric telescopic rods are fixedly connected to the same lifting plate, and the lifting plate is fixed The top of the said square hole circular tube passes through the second circular hole and the inner cavity of the bearing, and the same liquid storage box is fixedly connected between the two said vertical plates, and an inlet pipe is fixedly connected to the top of the said liquid storage box near the right side, and a third circular hole is opened at the bottom of the said liquid storage box, and the inner cavity of the said third circular hole is rotatably connected to the liquid outlet pipe, and a square tube is movably sleeved at the bottom end of the outer wall of the said liquid outlet pipe, and the bottom end of the square tube is inserted into the top end of the inner cavity of the square hole circular tube, and a traction mechanism is provided at the top of the said liquid outlet pipe, and a driving motor is provided on the left side of the said vertical plate on the right side, and the power output end of the driving motor is fixedly connected to the transmission shaft, and the other end of the said transmission shaft is fixedly connected to the transmission bevel gear, and the outer wall of the square tube is sleeved and fixed with a driven bevel gear meshing with the transmission bevel gear, a discharge pipe is fixedly plugged in at the bottom right side of the said cylinder, and a pipe valve is provided on the discharge pipe, and an exhaust pipe is fixedly plugged in at the top right side of the said cylinder.

[0007] Furthermore, an L-shaped bottom plate is fixedly connected to the left and right sides of the bottom of the cylinder, and two fixing holes distributed front and back are provided on the L-shaped bottom plate.

[0008] Furthermore, a plurality of scrapers are evenly and fixedly connected to the outer wall of the upper half of the square hole circular tube.

[0009] Furthermore, the traction mechanism includes a limiting ring, and the limiting ring is sleeved and fixed at the top of the outer wall of the liquid outlet pipe, the bottom of the limiting ring is fitted with the bottom of the inner cavity of the liquid storage box, and vertical rods are fixedly connected to the left and right sides of the top of the limiting ring, and the tops of the two vertical rods are fixedly connected to the same circular plate, and a threaded rod is rotatably connected to the top center of the circular plate, and a nut is fixedly connected to the top of the liquid storage box, and the top of the threaded rod passes through the inner cavity of the nut and is fixedly connected to a hand wheel.

[0010] Furthermore, a sealing ring is provided on the outer wall of the liquid outlet pipe, and the top of the sealing ring is fixedly connected to the bottom of the liquid storage box.

[0011] Furthermore, sliders are fixedly connected to the left and right sides of the lifting plate, and adjacent sides of the two vertical plates are provided with sliding grooves adapted to the sliders, and the two sliders are respectively slidably connected to the adjacent sliding groove cavities.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. While feeding the material into the inner cavity of the cylinder through the feeding box, the concentrated sulfuric acid in the liquid storage box can be synchronously transported into the inner cavity of the cylinder through the socket arrangement of the liquid outlet pipe, the square tube and the square-hole round tube. Through the arrangement of a plurality of drainage holes, after the concentrated sulfuric acid flows into the inner cavity of the cylinder, it can be discharged from the plurality of drainage holes and come into contact with the falling material. The drive shaft is driven to rotate by the driving motor, and the square tube is driven to rotate through the engagement of the driving bevel gear and the driven bevel gear. The rotation of the square-hole round tube drives the rotation of the plurality of scrapers and stirring blades, so that the material and the concentrated sulfuric acid can be stirred and mixed when they fall. At the same time, the material and the concentrated sulfuric acid can be quickly and evenly stirred by the rotation of the plurality of stirring blades, thereby improving the processing efficiency.

[0014] 2. The electric telescopic rod drives the lifting plate to move back and forth, thereby driving the square hole round tube to move back and forth on the outer wall of the square tube. Due to the rotatable setting of the square hole round tube, when the scraper and the partition are in contact, the material can be pushed by the rotation of the scraper and discharged downward through several leakage holes, which helps to further improve the processing efficiency by improving the uniformity of the material dispersion in the inner cavity of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of this embodiment;

[0016] Figure 2 This is a top view of the square tube of this embodiment;

[0017] Figure 3 for Figure 1 A magnified view of the structure at point A;

[0018] Figure 4 for Figure 1 A magnified view of the structure at point B.

[0019] In the figure: 1. Cylinder; 2. Feeding box; 3. Vertical plate; 4. Liquid storage box; 5. Liquid inlet pipe; 6. Liquid outlet pipe; 7. Sealing ring; 8. Limiting ring; 9. Square tube; 10. Square hole round tube; 11. Stirring blade; 12. Partition; 13. Leak hole; 14. Drain hole; 15. Scraper; 16. Driving motor; 17. Transmission shaft; 18. Transmission bevel gear; 19. Driven bevel gear; 20. Electric telescopic rod; 21. Lifting plate; 22. Vertical rod; 23. Round plate; 24. Threaded rod; 25. Nut; 26. Hand wheel; 27. Drain pipe; 28. L-shaped bottom plate; 29. ​​Fixing hole; 30. Exhaust pipe. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4 , the utility model provides the following technical solutions:

[0021] A kind of acid hydrolysis device for titanium dioxide production, comprises a cylinder 1, a feed port is provided at the top of the left side of the cylinder 1, and a feeding box 2 is provided on the left side of the feed port, and a discharge port is provided on the right side of the feeding box 2, the inner cavity of the cylinder 1 is fixedly connected to a partition 12 near the top, and a plurality of leakage holes 13 are evenly provided on the partition 12, a first circular hole is provided at the center of the partition 12, and a square hole circular tube 10 is rotatably connected to the inner cavity of the first circular hole, a plurality of stirring blades 11 are fixedly connected to the outer wall of the lower half of the square hole circular tube 10, and a plurality of drainage holes 14 are provided on the outer wall of the square hole circular tube 10, a second circular hole is provided at the center of the top of the cylinder 1, and the top of the cylinder 1 is fixedly connected near the left and right sides. The vertical plates 3 are provided with electric telescopic rods 20 on adjacent sides of the two vertical plates 3. The bottom ends of the two electric telescopic rods 20 are fixedly connected to the top of the cylinder 1, and the power ends of the two electric telescopic rods 20 are fixedly connected to the same lifting plate 21. Sliders are fixedly connected to the left and right sides of the lifting plate 21. The adjacent sides of the two vertical plates 3 are provided with slide grooves adapted to the sliders, and the two sliders are slidably connected to the adjacent slide groove cavities. By sliding the sliders in the adjacent slide groove cavities, the lifting plate 21 can be vertically limited to improve the stability during the reciprocating lifting movement. A bearing is fixedly connected to the lifting plate 21, and the top end of the square hole round tube 10 passes through the second circular hole and the bearing cavity. The top of the liquid storage box 4 is fixedly connected to the same liquid storage box 4, and a liquid inlet pipe 5 is fixedly connected to the top of the liquid storage box 4 near the right side. A third circular hole is provided at the bottom of the liquid storage box 4, and the inner cavity of the third circular hole is rotatably connected to the liquid outlet pipe 6. The outer wall of the liquid outlet pipe 6 is provided with a sealing ring 7, and the top of the sealing ring 7 is fixedly connected to the bottom of the liquid storage box 4 to improve the sealing effect of the liquid storage box 4. A square tube 9 is movably provided at the bottom end of the outer wall of the liquid outlet pipe 6, and the bottom end of the square tube 9 is plugged into the top end of the inner cavity of the square hole circular tube 10. A traction mechanism is provided at the top of the liquid outlet pipe 6. A drive motor 16 is provided on the left side of the vertical plate 3 on the right, and the power output end of the drive motor 16 is fixedly connected to the transmission shaft 17, and the other end of the transmission shaft 17 is fixed. A transmission bevel gear 18 is fixedly connected, and a driven bevel gear 19 meshing with the transmission bevel gear 18 is sleeved and fixed on the outer wall of the square tube 9. A drain pipe 27 is fixed at the bottom of the right side of the cylinder 1, and the drain pipe 27 is provided with a pipe valve. An exhaust pipe 30 is fixed at the top of the right side of the cylinder 1. Several scrapers 15 are evenly fixed on the outer wall of the upper half of the square hole circular tube 10. When the drive motor 16 drives the square hole circular tube 10 to rotate, and the electric telescopic rod 20 drives the square hole circular tube 10 to move back and forth, it can drive several scrapers 15 to rotate and move up and down at the same time, so that the material falling on the top of the partition 12 can be broken up and evenly dropped to the bottom of the inner cavity of the cylinder 1.

[0022] An L-shaped bottom plate 28 is fixedly connected to the left and right sides of the bottom of the cylinder 1, and two fixing holes 29 distributed front and back are opened on the L-shaped bottom plate 28. The acid hydrolysis device can be fixed and installed using external bolts in conjunction with the fixing holes 29 to improve stability during operation.

[0023] The traction mechanism includes a limiting ring 8, and the limiting ring 8 is sleeved and fixed on the top of the outer wall of the liquid outlet pipe 6. The bottom of the limiting ring 8 is fitted with the bottom of the inner cavity of the liquid storage box 4. Vertical rods 22 are fixedly connected to the left and right sides of the top of the limiting ring 8, and the tops of the two vertical rods 22 are fixedly connected to the same circular plate 23. A threaded rod 24 is rotatably connected to the top center of the circular plate 23. A nut 25 is fixedly connected to the top of the liquid storage box 4, and the top of the threaded rod 24 passes through the inner cavity of the nut 25 and is fixedly connected to a hand-cranked wheel 26. The rotation of the hand-cranked wheel 26 can drive the threaded rod 24 to rotate, and under the setting of the nut 25, the liquid outlet pipe 6 can be lifted and lowered by the rotation of the threaded rod 24. When the liquid outlet pipe 6 moves upward and is higher than the liquid level of the concentrated sulfuric acid in the liquid storage box 4, the liquid discharge can be shut down.

[0024] Working principle: When the present invention is in use, first, the L-shaped bottom plate 28 is installed and fixed by means of external bolts and fixing holes 29, then, by feeding materials into the feeding box 2, and turning the hand-cranked wheel 26 to drive the threaded rod 24 to rotate, and push the circular plate 23 to move downward, the circular plate 23 moves downward, and the two vertical rods 22 can jointly drive the limiting ring 8 to move downward, and make the bottom of the limiting ring 8 fit with the bottom of the inner cavity of the liquid storage box 4, so that the concentrated sulfuric acid in the liquid storage box 4 can be introduced into the inlet and outlet pipes 6, and flow into the square hole circular pipe 10 through the square pipe 9, and part of the concentrated sulfuric acid can be discharged through the arrangement of a plurality of drainage holes 14, and contact with the falling material, and the drive motor 16 is started by an external power supply to drive the transmission shaft 17 to rotate, and through the transmission The engagement of the movable bevel gear 18 and the driven bevel gear 19 drives the square tube 9 to rotate, and the rotation of the square tube 9 drives the square hole circular tube 10 to rotate, and the rotation of the square hole circular tube 10 drives the several scrapers 15 to rotate, so that the material and concentrated sulfuric acid can be preliminarily mixed. When the material falls on the top of the partition 12, the electric telescopic rod 20 is started by an external power supply to pull the lifting plate 21 to move up and down. When the lifting plate 21 moves downward, it can drive the square hole circular tube 10 to move downward, and can drive the several scrapers 15 to fit with the top of the partition 12. Through the rotation of the several scrapers 15, the material can be rotated and pushed, and the material can be discharged downward from the several leakage holes 13, thereby improving the uniformity of material dispersion. Through the setting of several stirring blades 11, the material and concentrated sulfuric acid can be fully reacted.

Claims

1. An acid decomposition device for titanium dioxide production, comprising a cylinder (1), characterized in that: A feed port is provided at the top of the left side of the cylinder (1), and a feeding box (2) is provided on the left side of the feed port, and a discharge port is provided on the right side of the feeding box (2). A partition (12) is fixedly connected to the inner cavity of the cylinder (1) near the top, and a plurality of leakage holes (13) are evenly provided on the partition (12). A first circular hole is provided at the center of the partition (12), and the inner cavity of the first circular hole is rotatably connected to a square hole circular tube (10), and a plurality of stirring blades (11) are fixedly connected to the outer wall of the lower half of the square hole circular tube (10), and the square hole circular tube (10) is provided with a plurality of stirring blades (11). A plurality of drainage holes (14) are provided on the outer wall of the hole circular tube (10), a second circular hole is provided at the center of the top circle of the cylinder (1), vertical plates (3) are fixedly connected to the top of the cylinder (1) near the left and right sides, and an electric telescopic rod (20) is provided on the adjacent side of the two vertical plates (3), the bottom ends of the two electric telescopic rods (20) are fixedly connected to the top of the cylinder (1), and the power ends of the two electric telescopic rods (20) are fixedly connected to the same lifting plate (21), and the lifting plate (21) is fixedly connected to a bearing, and the square hole circular tube (10) is provided with a plurality of drainage holes (14), a second circular hole is provided at the center of the top circle of the cylinder (1), and vertical plates (3) are fixedly connected to the top of the cylinder (1) near the left and right sides, and an electric telescopic rod (20) is provided on the adjacent side of the two vertical plates (3), and the bottom ends of the two electric telescopic rods (20) are fixedly connected to the top of the cylinder (1), and the power ends of the two electric telescopic rods (20) are fixedly connected to the same lifting plate (21), and the lifting plate (21) is fixedly connected to a bearing, and the square hole circular tube (10) is provided with a plurality of drainage holes (14), a second circular hole is provided at the center of the top circle of the cylinder (1), and a plurality of drainage holes are provided on ... The top end of the tube (10) passes through the second circular hole and the inner cavity of the bearing. A same liquid storage box (4) is fixedly connected between the two vertical plates (3), and a liquid inlet pipe (5) is fixedly connected to the top of the liquid storage box (4) near the right side. A third circular hole is opened at the bottom of the liquid storage box (4), and the inner cavity of the third circular hole is rotatably connected to a liquid outlet pipe (6). A square tube (9) is movably sleeved at the bottom end of the outer wall of the liquid outlet pipe (6), and the bottom end of the square tube (9) is plugged into the top end of the inner cavity of the square hole circular tube (10). A traction mechanism is provided at the top end of the liquid outlet pipe (6), which is located on the right side. A driving motor (16) is provided on the left side of the vertical plate (3), and the power output end of the driving motor (16) is fixedly connected to a transmission shaft (17), and the other end of the transmission shaft (17) is fixedly connected to a transmission bevel gear (18). A driven bevel gear (19) meshing with the transmission bevel gear (18) is fixedly sleeved on the outer wall of the square tube (9). A drain pipe (27) is plugged and fixed at the bottom right side of the cylinder (1), and a pipe valve is provided on the drain pipe (27). An exhaust pipe (30) is plugged and fixed at the top right side of the cylinder (1).

2. The acid decomposition device for titanium dioxide production according to claim 1, characterized in that: An L-shaped bottom plate (28) is fixedly connected to both left and right sides of the bottom of the cylinder (1), and the L-shaped bottom plate (28) is provided with two fixing holes (29) distributed front and back.

3. The acid decomposition device for titanium dioxide production according to claim 1, characterized in that: A plurality of scrapers (15) are evenly and fixedly connected to the outer wall of the upper half of the square hole circular tube (10).

4. The acid decomposition device for titanium dioxide production according to claim 1, characterized in that: The traction mechanism comprises a limiting ring (8), and the limiting ring (8) is sleeved and fixed on the top of the outer wall of the liquid outlet pipe (6), the bottom of the limiting ring (8) is arranged in contact with the bottom of the inner cavity of the liquid storage box (4), the left and right sides of the top of the limiting ring (8) are fixedly connected with vertical rods (22), and the tops of the two vertical rods (22) are fixedly connected with the same circular plate (23), the top center of the circular plate (23) is rotatably connected with a threaded rod (24), the top of the liquid storage box (4) is fixedly connected with a nut (25), and the top of the threaded rod (24) passes through the inner cavity of the nut (25) and is fixedly connected with a hand-cranked wheel (26).

5. The acid decomposition device for titanium dioxide production according to claim 1, characterized in that: The outer wall of the liquid outlet pipe (6) is provided with a sealing ring (7), and the top of the sealing ring (7) is fixedly connected to the bottom of the liquid storage box (4).

6. The acid decomposition device for titanium dioxide production according to claim 1, characterized in that: Slide blocks are fixedly connected to the left and right sides of the lifting plate (21), and adjacent sides of the two vertical plates (3) are provided with sliding grooves adapted to the slide blocks, and the two slide blocks are respectively slidably connected to the inner cavities of the adjacent sliding grooves.

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