Sulfuric acid method rutile titanium dioxide waste acid sedimentation recovery device

Abstract

The utility model relates to the field of titanium dioxide production auxiliary equipment, and discloses a sulfuric acid method rutile titanium dioxide waste acid sedimentation recovery device which comprises a sedimentation bin, an upper cover is arranged at the top end of the sedimentation bin, a driving motor is arranged at the top end of the upper cover, and the outer wall of the bottom end of an output shaft of the driving motor penetrates through the top end of the upper cover. A moving assembly is arranged on the inner wall of the upper cover and comprises a rotating disc, the top end of the rotating disc is fixedly connected to the bottom end of an output shaft of the driving motor, and a connecting rod is rotationally connected to the position, deviating from the circle center, of the bottom end of the rotating disc. According to the waste acid treatment device disclosed by the utility model, the stirring rod, the moving assembly and the driving motor are matched for use, and when a flocculating agent is added into waste acid in the settling bin, the driving motor is started to drive the moving assembly to move, so that the flocculating agent can completely cover the waste acid, and meanwhile, the stirring rod is driven to rotate, so that the waste acid and the flocculating agent are fully mixed; therefore, the waste acid treatment efficiency and effect are improved.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary equipment for titanium dioxide production, in particular to a waste acid sedimentation and recovery device for sulfuric acid process rutile titanium dioxide. Background Technique

[0002] In the process of producing rutile titanium dioxide by the sulfuric acid method, a large amount of waste acid will be generated. This waste acid mainly comes from processes such as acid digestion, hydrolysis, water washing, and bleaching. The waste acid not only contains high-concentration sulfuric acid, but also is accompanied by ferrous sulfate, metatitanic acid, and sulfates of other heavy metal ions.

[0003] After retrieval, Chinese Patent Publication No.: CN220656505U discloses a waste acid sedimentation and recovery device for sulfuric acid process rutile titanium dioxide. The utility model includes a sedimentation tank body, and also includes a sewage pump and a magnetic separator. A plurality of partition plates are arranged at intervals in the body. The partition plates are all horizontally arranged arc-shaped partition plates, and a turbidimeter is installed on the side wall of the body between adjacent partition plates. The feed end of the sewage pump is connected to the sediment discharge port, and the discharge end of the sewage pump is connected to the magnetic separator. Through a plurality of horizontally arranged arc-shaped partition plates, the utility model effectively slows down the flocculation and sinking speed of the impurity substances in the waste acid under the action of gravity. Compared with the previous inclined plate form, the horizontally arranged arc-shaped partition plates have better flocculation effect and higher clarity of the waste acid.

[0004] In the above technology, although the flocculation and sinking speed of the impurity substances in the waste acid under the action of gravity is effectively slowed down through a plurality of horizontally arranged arc-shaped partition plates, in the above device, a flocculant is added through a shunt funnel, and the shunt funnel is installed on the inner wall of the body, which may cause the flocculant injection area to be relatively concentrated, affecting its full mixing with the waste acid, and thus reducing the flocculation effect. Therefore, a waste acid sedimentation and recovery device for sulfuric acid process rutile titanium dioxide is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a waste acid sedimentation and recovery device for sulfuric acid process rutile titanium dioxide, aiming to improve the problem that "the shunt funnel is installed on the inner wall of the body, which may cause the flocculant injection area to be relatively concentrated, thereby reducing the flocculation effect" in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A waste acid sedimentation and recovery device for sulfuric acid process rutile titanium dioxide includes a sedimentation tank. A top cover is arranged at the top end of the sedimentation tank. A driving motor is arranged at the top end of the top cover. The outer wall of the bottom end of the output shaft of the driving motor penetrates through the top end of the top cover. A moving component is arranged on the inner wall of the top cover. The moving component includes a turntable. The top end of the turntable is fixedly connected to the bottom end of the output shaft of the driving motor. A connecting rod is rotatably connected to a position deviating from the center of the bottom end of the turntable. The right side of the connecting rod is rotatably connected to a moving rod. The outer wall of the moving rod is slidably connected to the inner wall of the top cover.

[0007] As a further description of the above technical solution:

[0008] A moving plate is fixedly connected to the bottom end of the moving rod, and a stabilizing rod is horizontally fixedly connected to the inner wall of the upper cover. There are two groups of the stabilizing rods, and the outer walls of the two groups of stabilizing rods penetrate and are slidably connected to the inner wall of the moving plate.

[0009] As a further description of the above technical solution:

[0010] A spray pipe is fixedly connected to the bottom end of the moving plate. A connecting hose is arranged at the top end of the spray pipe. One end of the connecting hose is fixedly connected to the top end of the moving plate, and the other end of the connecting hose penetrates and is fixedly connected to the inner wall of the right side of the upper cover.

[0011] As a further description of the above technical solution:

[0012] A rotating shaft is rotatably connected through the middle of the moving plate. A gear is fixedly connected to the top end of the rotating shaft. A rack is meshed with the front side of the gear, and the top end of the rack is fixedly connected to the inner wall of the lower side of the upper cover.

[0013] As a further description of the above technical solution:

[0014] A stirring rod is inserted into the inner wall of the bottom end of the rotating shaft. An installation component is arranged on the outer wall of the bottom end of the rotating shaft. The installation component includes a limiting sleeve. The inner wall of the limiting sleeve is rotatably connected to the outer wall of the bottom end of the rotating shaft, and a limiting column is slidably connected to the inner wall of the upper side of the limiting sleeve.

[0015] As a further description of the above technical solution:

[0016] A jack is opened near the top end of the rotating shaft close to the limiting column. The outer wall of the top end of the limiting column is inserted into the inner wall of the jack, and a clamping groove is opened on the inner wall of the limiting sleeve.

[0017] As a further description of the above technical solution:

[0018] A moving ring is fixedly connected to the bottom end of the limiting column. The moving ring and the limiting sleeve are elastically connected through a compression spring. There are multiple groups of the limiting column and the compression spring. A pulling plate is fixedly connected to the outside of the moving ring, and the inner side of the pulling plate slides on the outer wall of the limiting sleeve.

[0019] As a further description of the above technical solution:

[0020] There are two groups of the pulling plates, and the two groups of pulling plates are respectively arranged on the left and right sides of the moving ring.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present utility model, through the coordinated use of the stirring rod, the moving assembly, and the driving motor, when adding the flocculant to the waste acid in the sedimentation tank, by starting the driving motor to drive the moving assembly to move, the flocculant can fully cover the waste acid. At the same time, the stirring rod is driven to rotate, enabling the waste acid and the flocculant to be fully mixed, thereby improving the treatment efficiency and effect of the waste acid.

[0023] 2. In the present utility model, through the coordinated use of the installation assembly and the stirring rod, when it is necessary to maintain or replace the stirring rod, the stirring rod can be quickly removed through the installation assembly, reducing the operation difficulty and ensuring the efficient operation and long-term stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the overall device in the present utility model;

[0025] Figure 2 is a bottom-up three-dimensional structural schematic diagram of the upper cover in the present utility model;

[0026] Figure 3 is a front-view three-dimensional structural sectional schematic diagram of the upper cover in the present utility model;

[0027] Figure 4 is a disassembled three-dimensional structural schematic diagram of the installation assembly in the present utility model;

[0028] Figure 5 is a front-view three-dimensional structural sectional schematic diagram of the limit sleeve in the present utility model;

[0029] Figure 6 is a left-view three-dimensional structural schematic diagram of the overall device in the present utility model.

[0030] LEGEND DESCRIPTION:

[0031] 1. Sedimentation tank; 2. Upper cover; 3. Driving motor; 4. Stirring rod; 51. Turntable; 52. Connecting rod; 53. Moving rod; 54. Moving plate; 55. Spray pipe; 56. Connecting hose; 57. Rotating shaft; 58. Gear; 59. Rack; 61. Limit sleeve; 62. Limit post; 63. Compression spring; 64. Pulling plate; 65. Jack; 66. Card slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Reference Figure 1 、 Figure 3 and Figure 6 , an embodiment provided by the present utility model: a waste acid sedimentation and recovery device for sulfuric acid process rutile titanium dioxide, including a sedimentation tank 1 for accommodating the waste acid of sulfuric acid process rutile titanium dioxide, which is the main space for sedimentation and recovery and is prior art. A top cover 2 is provided at the top of the sedimentation tank 1 to close the top of the sedimentation tank 1, provide installation support for internal components, and prevent material overflow. A driving motor 3 is provided at the top of the top cover 2 for driving the turntable 51 to rotate. The bottom outer wall of the output shaft of the driving motor 3 penetrates through the top of the top cover 2. A moving component is provided on the inner wall of the top cover 2. The moving component includes a turntable 51, which converts the rotational motion of the driving motor 3 into the circular motion of the connecting rod 52. The top of the turntable 51 is fixedly connected to the bottom end of the output shaft of the driving motor 3. A connecting rod 52 is rotatably connected to a position deviating from the center of the bottom end of the turntable 51 for connecting the turntable 51 and the moving rod 53. The right side of the connecting rod 52 is rotatably connected to a moving rod 53. The outer wall of the moving rod 53 is slidably connected to the inner wall of the top cover 2 and moves horizontally under the action of the connecting rod 52, thereby driving the moving plate 54 to move reciprocally. The bottom end of the moving rod 53 is fixedly connected to a moving plate 54 for driving multiple groups of spray pipes 55 thereon to move and achieve uniform spraying. Two groups of stabilizing rods are horizontally and fixedly connected to the inner wall of the top cover 2. The outer walls of the two groups of stabilizing rods penetrate and are slidably connected to the inner wall of the moving plate 54 to provide stability when the moving plate 54 moves.

[0034] Reference Figure 2 and Figure 3 , a spray pipe 55 is fixedly connected to the bottom end of the moving plate 54. Multiple groups of spray pipes 55 are provided. A connecting hose 56 is provided at the top of the spray pipe 55. The flocculant is introduced through the connecting hose 56, and uniform spraying at different positions in the sedimentation tank 1 is achieved under the drive of the moving plate 54. One end of the connecting hose 56 is fixedly connected to the top of the moving plate 54, and the other end of the connecting hose 56 penetrates and is fixedly connected to the inner wall of the right side of the top cover 2. A rotating shaft 57 is rotatably connected through the middle of the moving plate 54 for transmitting power to drive the stirring rod 4 to rotate and stir. An installation groove is provided in the inner wall of the bottom end of the rotating shaft 57 for inserting the stirring rod 4. A gear 58 is fixedly connected to the top end of the rotating shaft 57. The gear 58 meshes with a rack 59. When the moving plate 54 moves, it drives the rotating shaft 57 to rotate. The rack 59 meshes with the front side of the gear 58 and cooperates with the gear 58 to drive the rotating shaft 57 to rotate during the movement of the moving plate 54. The top end of the rack 59 is fixedly connected to the inner wall of the lower side of the top cover 2.

[0035] Reference Figure 2 、 Figure 4 and Figure 5The inner wall at the bottom end of the rotating shaft 57 is plugged with a stirring rod 4 to stir the waste acid and flocculant in the sedimentation bin 1 to promote sedimentation and recovery. Bumps are set on both sides of the top of the stirring rod 4 to match the card slot 66. The outer wall at the bottom end of the rotating shaft 57 is provided with a mounting assembly, which includes a limit sleeve 61 for limiting the stirring rod 4 and providing an installation position for components such as the limit column 62, and cooperates with the rotating shaft 57 to achieve the installation and fixation of the stirring rod 4. The inner wall of the limit sleeve 61 is rotatably connected to the outer wall at the bottom end of the rotating shaft 57, and the upper inner wall of the limit sleeve 61 is slidably connected to the limit column 62. The limit is limited by inserting the jack 65, so that the card slot 66 on the limit sleeve 61 is misaligned with the rotating shaft 57, thereby quickly fixing the stirring rod 4. The rotating shaft 57 is provided with a jack 65 near the top of the limit column 62 to accommodate the top of the limit column 62 to achieve quick connection and fixation.

[0036] Furthermore, the outer wall of the top end of the limiting column 62 is inserted into the inner wall of the socket 65, and a slot 66 is provided on the inner wall of the limiting sleeve 61, which cooperates with the limiting column 62 to quickly fix the stirring rod 4. The bottom end of the limiting column 62 is fixedly connected with a moving ring for fixing multiple groups of limiting columns 62 and compression springs 63, which can drive multiple groups of limiting columns 62 to move at the same time. The moving ring is elastically connected to the limiting sleeve 61 through the compression spring 63, which provides elastic restoring force for the limiting column 62 and the moving ring to ensure that they are stably inserted into the socket 65. Multiple groups of limiting columns 62 and compression springs 63 are arranged, and a pull plate 64 is fixedly connected to the outer side of the moving ring. The inner side of the pull plate 64 slides on the outer wall of the limiting sleeve 61. Two groups of pull plates 64 are arranged, and the two groups of pull plates 64 are respectively arranged on the left and right sides of the moving ring, which are used to pull the moving ring to make the limiting column 62 disengage from the socket 65, thereby facilitating the disassembly of the stirring rod 4.

[0037] Working principle: When in use, when the waste acid of rutile titanium dioxide produced by the sulfuric acid process is being settled and recovered, the waste acid is injected into the sedimentation bin 1, and the driving motor 3 at the top of the upper cover 2 is started, and its output shaft drives the turntable 51 to rotate, and the connecting rod 52 connected to the bottom end of the turntable 51 deviates from the center of the circle and rotates accordingly to make a circular motion, thereby pushing the moving rod 53 connected thereto to move horizontally, and the moving rod 53 drives the moving plate 54 at the bottom end to move horizontally back and forth along the inner wall of the upper cover 2. At this time, multiple groups of spray pipes 55 at the bottom end of the moving plate 54 introduce flocculants through the connecting hose 56, and driven by the moving plate 54, different positions in the sedimentation bin 1 are evenly sprayed.

[0038] At the same time, the gear 58 at the top of the rotating shaft 57 that runs through the middle of the moving plate 54 is engaged with the rack 59 that is fixedly connected to the inner wall of the lower side of the upper cover 2. Therefore, during the movement of the moving plate 54, the gear 58 drives the rotating shaft 57 to rotate, and the stirring rod 4 at the bottom end of the rotating shaft 57 stirs the waste acid and flocculant in the sedimentation bin 1, thereby promoting the sedimentation and recovery of the waste acid.

[0039] When maintenance or replacement of the stirring rod 4 is required, first pull down the pull plate 64. The pull plate 64 drives the moving ring to compress the compression spring 63, so that the bottom end of the limit post 62 disengages from the jack 65. At this time, rotate the limit sleeve 61 to align the slot 66 on the limit sleeve 61 with the installation groove on the inner wall of the rotating shaft 57, so that the stirring rod 4 can be quickly pulled out. Insert the new stirring rod 4, then rotate the limit sleeve 61 in the reverse direction and release the pull plate 64. Under the action of the elastic restoring force of the compression spring 63, the top end of the limit post 62 is inserted into the jack 65 to realize the quick installation and fixation of the stirring rod 4.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A waste acid sedimentation and recovery device for rutile titanium dioxide produced by the sulfuric acid process, comprising a sedimentation bin (1), characterized in that: The top of the sedimentation bin (1) is provided with an upper cover (2), the top of the upper cover (2) is provided with a driving motor (3), the outer wall of the bottom end of the output shaft of the driving motor (3) penetrates the top of the upper cover (2), the inner wall of the upper cover (2) is provided with a moving assembly, the moving assembly comprises a turntable (51), the top of the turntable (51) is fixedly connected to the bottom end of the output shaft of the driving motor (3), the bottom end of the turntable (51) is rotatably connected to a connecting rod (52) at a position deviating from the center of the circle, the right side of the connecting rod (52) is rotatably connected to a moving rod (53), and the outer wall of the moving rod (53) is slidably connected to the inner wall of the upper cover (2).

2. The waste acid sedimentation and recovery device for rutile titanium dioxide produced by the sulfuric acid process according to claim 1, characterized in that: The bottom end of the moving rod (53) is fixedly connected to a moving plate (54), and the inner wall of the upper cover (2) is laterally fixedly connected to a stabilizing rod. Two groups of stabilizing rods are provided, and the outer walls of the two groups of stabilizing rods penetrate and are slidably connected to the inner wall of the moving plate (54).

3. A sulfuric acid process rutile titanium dioxide waste acid settling and recovery device according to claim 2, characterized in that: The bottom end of the movable plate (54) is fixedly connected to a spray pipe (55), the top end of the spray pipe (55) is provided with a connecting hose (56), one end of the connecting hose (56) is fixedly connected to the top end of the movable plate (54), and the other end of the connecting hose (56) passes through and is fixedly connected to the right inner wall of the upper cover (2).

4. The waste acid sedimentation and recovery device for rutile titanium dioxide produced by the sulfuric acid process according to claim 2, characterized in that: A rotating shaft (57) is rotatably connected to the middle of the movable plate (54), a gear (58) is fixedly connected to the top of the rotating shaft (57), a rack (59) is meshed on the front side of the gear (58), and the top of the rack (59) is fixedly connected to the lower inner wall of the upper cover (2).

5. A sulfuric acid process rutile titanium dioxide waste acid settling and recovery device according to claim 4, characterized in that: The inner wall of the bottom end of the rotating shaft (57) is plugged with a stirring rod (4), and the outer wall of the bottom end of the rotating shaft (57) is provided with a mounting assembly, the mounting assembly comprising a limit sleeve (61), the inner wall of the limit sleeve (61) is rotatably connected to the outer wall of the bottom end of the rotating shaft (57), and the upper inner wall of the limit sleeve (61) is slidably connected to the limit column (62).

6. The waste acid sedimentation and recovery device for rutile titanium dioxide produced by the sulfuric acid process according to claim 5, characterized in that: The rotating shaft (57) is provided with an insertion hole (65) near the top of the limiting column (62); the outer wall of the top of the limiting column (62) is inserted into the inner wall of the insertion hole (65); and the inner wall of the limiting sleeve (61) is provided with a slot (66).

7. The waste acid sedimentation and recovery device for rutile titanium dioxide produced by the sulfuric acid process according to claim 5, characterized in that: A moving ring is fixedly connected to the bottom end of the limiting column (62), and the moving ring is elastically connected to the limiting sleeve (61) via a compression spring (63). The limiting column (62) and the compression spring (63) are provided in multiple groups, and a pull plate (64) is fixedly connected to the outer side of the moving ring, and the inner side of the pull plate (64) slides on the outer wall of the limiting sleeve (61).

8. The waste acid sedimentation and recovery device for rutile titanium dioxide produced by the sulfuric acid process according to claim 7, characterized in that: Two groups of the pulling plates (64) are provided, and the two groups of the pulling plates (64) are respectively provided on the left and right sides of the moving circle.

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