A guide device for a settling tank used in sulfuric acid method titanium dioxide production

Abstract

The utility model discloses a kind of sedimentation tank flow guide devices for sulphuric acid method titanium dioxide production, belong to sedimentation tank equipment technical field, including flow guide shell and feed pipe;The internal space of flow guide shell is divided into buffer chamber and flow guide chamber, wherein buffer chamber is communicated with feed pipe;Buffer plate vertically arranged is installed between buffer chamber and flow guide chamber with interval, multiple linear array distribution is set on each buffer plate and buffer groove is communicated with buffer chamber and flow guide chamber;Multiple linear array distribution and vertically inclined flow guide plate are fixed in flow guide chamber, and flow guide groove flowing up and down is formed between every two adjacent flow guide plates. After titanium liquid is pressurized into buffer chamber by feed pipe, change titanium liquid flow direction by buffer groove, to reduce titanium liquid initial kinetic energy, then guide flow by inclined flow guide groove, gradually consume titanium liquid kinetic energy, avoid impurities splash up;Secondly, directional flow of flow guide groove reduces noise, so that whole sedimentation process is more quiet.

Description

Technical Field

[0001] This utility model relates to the technical field of settling tank equipment, specifically a flow guiding device for a settling tank used in the production of titanium dioxide using the sulfuric acid process. Background Technology

[0002] In the sulfuric acid process for titanium dioxide production, the settling tank is the core equipment for separating molten titanium (containing impurities such as silica and zircon) from other impurities, relying on gravity settling to achieve solid-liquid separation. Existing settling tanks generally suffer from the following technical problems: Without a flow guide structure: the titanium liquid is directly fed in from the top. When the titanium liquid in the high settling tank reaches the bottom of the tank, it still has a large kinetic energy, which easily splashes impurities and disrupts the uniformity of settling. Noise issue: The high-speed flow of molten titanium impacts the tank walls / bottom, generating significant noise; Therefore, there is an urgent need for a flow guiding device that can buffer kinetic energy and guide the smooth flow of molten titanium. Utility Model Content

[0003] The first technical problem this utility model aims to solve is to provide a flow guiding device for a settling tank in the production of titanium dioxide using the sulfuric acid process. By reducing the kinetic energy of the titanium liquid and guiding the flow in a directional manner, it can prevent impurities from splashing up, thereby improving the uniformity of settling and the quietness of the process, thus solving the problems of poor uniformity of settling and high noise in traditional settling tanks.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A settling tank flow guiding device for sulfuric acid process titanium dioxide production includes a vertically arranged flow guiding shell and a feed pipe communicating with the inside of the flow guiding shell; Its core improvement lies in the fact that the internal space of the flow guide shell is divided into a buffer chamber in the middle and flow guide chambers on the left and right sides of the buffer chamber, wherein the buffer chamber is connected to the feed pipe. A vertically arranged buffer plate is installed between the buffer chamber and the flow guide chamber. Each buffer plate has multiple linearly arranged buffer grooves that connect the buffer chamber and the flow guide chamber. The opening direction of the buffer groove is perpendicular to the flow direction of the titanium liquid in the buffer chamber. Multiple linearly arranged and vertically inclined flow guide plates are fixed in the flow guide chamber. Each pair of adjacent flow guide plates forms a flow guide groove for vertical flow.

[0005] By adopting the above scheme, after the titanium liquid is pressurized and enters the buffer chamber through the feed pipe, the flow direction of the titanium liquid is changed by the buffer tank to reduce the initial kinetic energy of the titanium liquid. Then, the flow is guided by the inclined guide channel to gradually consume the kinetic energy of the titanium liquid and avoid splashing of impurities. Secondly, the directional flow of the guide channel reduces noise, making the whole settling process quieter.

[0006] In a preferred embodiment of the settling tank guiding device for sulfuric acid process titanium dioxide production, the number of buffer tanks is equal to the number of guiding tanks, and the position of each buffer tank corresponds vertically to the position of each guiding tank, so that the titanium liquid flows more smoothly from the buffer chamber into the guiding chamber.

[0007] As a preferred embodiment of the flow guiding device for a settling tank in the sulfuric acid process for titanium dioxide production, the flow guiding plate is a corrugated plate to improve the overall rigidity and strength of the flow guiding plate.

[0008] As a preferred embodiment of the flow guiding device for a settling tank in the sulfuric acid process for titanium dioxide production, both the front and rear surfaces of the flow guide plate are coated with a wear-resistant layer, such as a ceramic coating, which can resist particle abrasion and further extend the service life of the flow guide plate.

[0009] As a preferred embodiment of the flow guiding device for the settling tank in the sulfuric acid process for titanium dioxide production, all flow guide plates are permeated with multiple reinforcing screws arranged perpendicularly to each other. The front and rear ends of the reinforcing screws are respectively equipped with reinforcing nuts to fasten all the flow guide plates, which further improves the positioning effect of all flow guide plates and also prevents the flow guide plates from deforming.

[0010] As a preferred embodiment of the flow guiding device for a settling tank in the sulfuric acid process for titanium dioxide production, the angle of inclination between the guide plate and the horizontal plane is 40-60°, which ensures smooth flow and reduces flow velocity.

[0011] The second technical problem to be solved by this utility model is to provide a flow guiding device for a settling tank in the production of titanium dioxide using the sulfuric acid process. By adding a flow divider in the buffer chamber, the titanium liquid can flow evenly into the flow guiding chambers on the left and right sides, further solving the problem of poor settling uniformity in traditional settling tanks.

[0012] To achieve the above objectives, the present invention adopts the following technical solution: Based on the above scheme, a flow divider seat is fixed at the bottom of the buffer cavity, located in the middle and facing the flow direction of the titanium liquid; wherein, the cross-sectional shape of the flow divider seat is an isosceles triangle, and the apex of the isosceles triangle faces the flow direction of the titanium liquid.

[0013] By adopting the above scheme, when the titanium liquid enters the buffer chamber, it first rushes towards the diversion seat. The isosceles triangular diversion seat can ensure the uniform distribution of the titanium liquid, so that the titanium liquid flows evenly into the guide chambers on the left and right sides, further improving the uniformity of titanium liquid sedimentation.

[0014] The beneficial effects of this utility model are: 1. Buffering and reducing kinetic energy: After the titanium liquid is pressurized and enters the buffer chamber through the feed pipe, the flow direction of the titanium liquid is changed by the buffer tank to reduce the initial kinetic energy of the titanium liquid. Then, the flow is guided by the inclined guide channel to gradually consume the kinetic energy of the titanium liquid and avoid impurities splashing. 2. Quiet and uniform: The directional flow of the guide channel reduces noise, making the entire settling process quieter; 3. High durability: The corrugated plate can improve the overall rigidity and strength of the guide plate, the wear-resistant layer can extend the service life of the guide plate, and the reinforced screw can improve the positioning effect of all guide plates and prevent their deformation. 4. Improve sedimentation uniformity: When the titanium liquid enters the buffer chamber, it first rushes towards the diversion seat. The isosceles triangular diversion seat can ensure the uniform distribution of the titanium liquid, so that the titanium liquid flows evenly into the guide chambers on the left and right sides, further improving the uniformity of titanium liquid sedimentation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 The three-dimensional structure of the settling tank diversion device for sulfuric acid process titanium dioxide production in Example 1. Figure 1 ; Figure 2 The three-dimensional structure of the settling tank diversion device for sulfuric acid process titanium dioxide production in Example 1. Figure 2 ; Figure 3 To showcase Figure 1 Three-dimensional diagram of the internal structure of the buffer chamber; Figure 4 To showcase Figure 1 Three-dimensional diagram of the internal structure of the central guide cavity; Figure 5 for Figure 4 A magnified view of a section at point A in the middle; Figure 6 for Figure 4 A magnified view of a section at point B in the middle; Figure 7 This is a top view of the settling tank diversion device used in the sulfuric acid process for titanium dioxide production in Example 2; Reference numerals in the attached drawings: 1-Guide shell; 2-Feed pipe; 3-Buffer chamber; 4-Guide chamber; 5-Buffer plate; 6-Buffer groove; 7-Guide plate; 8-Guide groove; 9-Reinforcing screw; 10-Reinforcing nut; 11-Diverter seat. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1, as Figures 1 to 2 As shown, a flow guiding device for a settling tank in the production of titanium dioxide using the sulfuric acid process is applied in a settling tank. The settling tank is used to separate titanium liquid (containing impurities such as silica and zircon) from impurities. It includes a vertically arranged flow guiding shell 1 and a feed pipe 2 that communicates with the inside of the flow guiding shell 1.

[0019] Continue as Figures 1 to 2 As shown, the internal space of the flow guide housing 1 is divided into a buffer chamber 3 located in the middle and flow guide chambers 4 located on the left and right sides of the buffer chamber 3, wherein the buffer chamber 3 is connected to the feed pipe 2.

[0020] like Figures 3 to 5 As shown, a vertically arranged buffer plate 5 is installed between the buffer chamber 3 and the flow guiding chamber 4. Each buffer plate 5 has 10 linearly arranged buffer grooves 6 (strip grooves) that connect the buffer chamber 3 and the flow guiding chamber 4. The opening direction of the buffer groove 6 is perpendicular to the flow direction of the titanium liquid in the buffer chamber 3. Ten linearly arranged and vertically inclined flow guiding plates 7 are fixed in the flow guiding chamber 4. Each pair of adjacent flow guiding plates 7 forms a flow guiding groove 8 for vertical flow.

[0021] Continue as Figures 3 to 5 As shown, the number of buffer tanks 6 (10) is equal to the number of guide tanks 8 (10), and the position of each buffer tank 6 corresponds vertically to the position of each guide tank 8, so that the titanium liquid flows more smoothly from the buffer cavity 3 into the guide cavity 4.

[0022] like Figure 5 As shown, the guide plate 7 is a corrugated plate to improve the overall rigidity and strength of the guide plate 7; the front and rear surfaces of the guide plate 7 are coated with a wear-resistant layer (ceramic coating) to resist particle wear and further extend the service life of the guide plate 7.

[0023] like Figure 6 As shown, all the guide plates 7 are permeated by two reinforcing screws 9 arranged perpendicularly to each other. The front and rear ends of the reinforcing screws 9 are respectively equipped with reinforcing nuts 10 to fasten all the guide plates 7, which further improves the positioning effect of all the guide plates 7 and can also prevent the guide plates 7 from deforming.

[0024] like Figure 4As shown, the angle of inclination between the guide plate 7 and the horizontal plane is 40-60°, with 60° being the preferred angle in the figure, which ensures smooth flow and reduces flow velocity.

[0025] Working principle of Example 1: After the titanium liquid is pressurized and enters the buffer chamber 3 through the feed pipe 2, the flow direction of the titanium liquid is changed by the buffer tank 6 to reduce the initial kinetic energy of the titanium liquid. Then, the flow is guided by the inclined guide tank 8 to gradually consume the kinetic energy of the titanium liquid and avoid splashing of impurities. Secondly, the directional flow of the guide tank 8 reduces noise, making the whole settling process quieter.

[0026] Example 2, as Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that, based on Embodiment 1, a flow divider 11 located in the center of the buffer cavity 3 and facing the flow direction of the titanium liquid is welded and fixed at the bottom of the buffer cavity 3; wherein, the cross-sectional shape of the flow divider 11 is an isosceles triangle, and the apex of the isosceles triangle faces the flow direction of the titanium liquid.

[0027] Working principle of Example 2: When the titanium liquid enters the buffer chamber 3, it first rushes towards the diversion seat 11. The isosceles triangular diversion seat 11 can ensure the uniform distribution of the titanium liquid, so that the titanium liquid flows evenly into the guide chambers 4 on the left and right sides, further improving the uniformity of titanium liquid sedimentation.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flow guiding device for a settling tank in the production of titanium dioxide using the sulfuric acid process, comprising a vertically arranged flow guiding shell and a feed pipe communicating with the interior of the flow guiding shell; Its features are: The internal space of the flow guide shell is divided into a buffer chamber in the middle and flow guide chambers on the left and right sides of the buffer chamber, wherein the buffer chamber is connected to the feed pipe. A vertically arranged buffer plate is installed between the buffer chamber and the flow guiding chamber. Each buffer plate has multiple buffer grooves arranged in a linear array that connect the buffer chamber and the flow guiding chamber. The opening direction of the buffer groove is perpendicular to the flow direction of the titanium liquid in the buffer chamber. Multiple linearly arranged and vertically inclined flow guiding plates are fixed in the flow guiding chamber. Each pair of adjacent flow guiding plates forms a flow guiding groove for vertical flow.

2. The settling tank diversion device for sulfuric acid process titanium dioxide production according to claim 1, characterized in that: The number of buffer slots is equal to the number of guide slots, and the position of each buffer slot corresponds vertically to the position of each guide slot.

3. The settling tank diversion device for sulfuric acid process titanium dioxide production according to claim 1, characterized in that: The guide plate is a corrugated plate.

4. The settling tank diversion device for sulfuric acid process titanium dioxide production according to claim 1, characterized in that: The front and rear surfaces of the guide plate are coated with a wear-resistant layer.

5. The settling tank diversion device for sulfuric acid process titanium dioxide production according to claim 1, characterized in that: All the deflectors are permeated by multiple reinforcing screws that are perpendicular to each other, and the front and rear ends of the reinforcing screws are respectively fitted with reinforcing nuts that fasten all the deflectors.

6. The settling tank diversion device for sulfuric acid process titanium dioxide production according to claim 1, characterized in that: The angle of inclination between the guide plate and the horizontal plane is 40-60°.

7. The settling tank diversion device for sulfuric acid process titanium dioxide production according to claim 1, characterized in that: The bottom of the buffer chamber is fixed with a flow divider located in the center and facing the direction of titanium liquid flow.

8. The settling tank diversion device for sulfuric acid process titanium dioxide production according to claim 7, characterized in that: The cross-sectional shape of the flow divider is an isosceles triangle, with the apex of the isosceles triangle facing the flow direction of the titanium liquid.

Images