Integrated production equipment for catalyzing and hydrolyzing metatitanic acid by using low-concentration titaniferous solution

Abstract

The utility model belongs to the field of chemical equipment, particularly relates to integrated production equipment for catalyzing and hydrolyzing metatitanic acid by using low-concentration titaniferous liquid, and aims to solve the problems that the maintenance cost of the equipment is increased, the heating effect and the subsequent production link are influenced, and hydrolysis scales are easily generated on the inner wall of the existing reaction kettle, but the hydrolysis scales are easily generated on the inner wall of the equipment. According to the scheme, the low-concentration titaniferous solution cleaning device comprises a high-level tank used for heating a low-concentration titaniferous solution; the preparation tank is used for heating a sodium hydroxide solution and mixing the sodium hydroxide solution with a low-concentration titanium solution, the preparation tank is located on one side of the high-level tank, and the high-level tank and the preparation tank are communicated with each other through a pipeline with a pump machine. According to the technical scheme, the reaction kettle for producing metatitanic acid can be conveniently cleaned while the processing production is realized, so that the hydrolysis scale generated on the inner wall is removed, and the influence on heating and subsequent links is avoided.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to an integrated production equipment for the catalytic hydrolysis of metatitanic acid using low-concentration titanium liquid. Background Technology

[0002] Metatitanic acid is a titanium compound with wide applications in chemical engineering, materials science and environmental protection. It can be used as a precursor for the preparation of high-performance materials such as nano-sized titanium dioxide and titanates, and can also be used in catalysts, adsorbents and water treatment.

[0003] Traditional methods for producing metatitanic acid often involve hydrolysis using high-concentration titanium liquid. This not only increases production costs but may also lead to uneven particle size distribution of the hydrolysis products, affecting the performance of subsequent applications. To reduce production costs and improve product quality, the industry has begun to explore catalytic hydrolysis technology using low-concentration titanium liquid to obtain metatitanic acid products with uniform particle size distribution and excellent performance. However, hydrolysis scale is easily generated on the inner wall of the reactor during the hydrolysis process. This not only increases the maintenance cost of the equipment but also affects the heating effect and subsequent production processes. Moreover, because it is located on the inner wall of the equipment, it is relatively inconvenient to clean.

[0004] Therefore, an integrated production equipment for the catalytic hydrolysis of metatitanic acid using low-concentration titanium liquid is proposed. This equipment integrates multiple functions such as heating, mixing, reaction, and wall scraping. It can not only achieve effective catalytic hydrolysis of low-concentration titanium liquid, but also facilitate the cleaning of the reaction vessel, ensuring the continuous and stable operation of the equipment and the high-quality output of the product. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where hydrolysis scale easily forms on the inner wall of the reactor during the hydrolysis process. This scale not only increases the maintenance cost of the equipment but also affects the heating effect and subsequent production processes. Furthermore, the scale is difficult to clean because it is located on the inner wall of the equipment. Therefore, this invention proposes an integrated production equipment for the catalytic hydrolysis of metatitanic acid using low-concentration titanium liquid.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An integrated production equipment for the catalytic hydrolysis of metatitanic acid from low-concentration titanium liquid includes a high-level tank for heating the low-concentration titanium liquid.

[0008] A preparation tank is used to heat a sodium hydroxide solution and mix it with a low-concentration titanium solution. The preparation tank is located on one side of a high-level tank, and the high-level tank and the preparation tank are connected to each other by a pipeline with a pump.

[0009] A reaction vessel is used to mix low-concentration titanium liquid with sodium metatitanate. The reaction vessel is located on one side of the preparation tank. The preparation tank and the reaction vessel are connected to each other through a pipeline with a pump. The high-level tank and the reaction vessel are connected to each other through a pipeline with a pump. A stirring rod is rotatably installed inside the reaction vessel, and multiple stirring blades are fixedly installed on the outer wall of the stirring rod.

[0010] A wall scraping mechanism is used to remove hydrolytic scale from the inner wall of the reactor, and the wall scraping mechanism is located inside the reactor.

[0011] In one possible design, a shell is fixedly installed on the top of the reactor, and a servo motor is fixedly installed inside the shell. The top of the stirring rod rotates through the reactor and is fixedly connected to the reducer of the servo motor.

[0012] In one possible design, the wall scraping mechanism includes multiple scraper strips that are in contact with the inner wall of the reactor. The stirring rod is rotatably fitted with an outer cylinder on the outer wall inside the reactor. The multiple scraper strips are fixedly installed on the outer wall of the outer cylinder, and the top of the outer cylinder rotatably extends to the outside of the reactor.

[0013] In one possible design, the scraping mechanism further includes multiple inserts. The outer cylinder, located on the outer wall of the reactor, has multiple sliding holes, and the multiple inserts are slidably disposed inside the multiple sliding holes. The outer wall of the stirring rod has multiple slots, and one end of each of the multiple inserts engages with one of the multiple slots. A fixing ring is fixedly disposed on the top of the reactor, and the outer cylinder is located inside the fixing ring. The top of the fixing ring has multiple bottom grooves, and the bottom of the other end of each of the multiple inserts engages with one of the multiple bottom grooves.

[0014] In one possible design, the scraping mechanism further includes a threaded cylinder, which is threaded onto the outer wall of the fixing ring. An inner ring is fixedly provided at the top of the inner wall of the threaded cylinder. An inclined surface is provided at the top of one end of the insert. The inner ring cooperates with multiple inclined surfaces. A side groove is provided on one side of the insert. A fixing plate is fixedly provided on the inner wall of one side of the sliding hole, and the fixing plate is located inside the side groove. A tension spring is provided inside the side groove, and the two ends of the tension spring are respectively fixedly provided on one side of the adjacent fixing plate and on one side of the inner wall of the side groove.

[0015] In one possible design, heating elements are installed inside the high-level tank, the preparation tank, and the reaction vessel.

[0016] In this application, during actual use, when the threaded cylinder is rotated upwards, the insert bar will be moved outwards by the force of the tension spring. One end of the insert bar will disengage from the inside of the slot, releasing the connection between the stirring rod and the outer cylinder, while the bottom of the other end will be inserted into the bottom groove, thereby fixing the outer cylinder and the fixing ring. At this time, the drive servo motor can independently drive the stirring rod and the stirring blades on the outer wall to rotate for stirring and mixing. Conversely, when the threaded cylinder is rotated downwards, the inner ring of the inner wall of the threaded cylinder will abut against the inclined surface, thereby pushing the insert bar inwards, fixing the stirring rod and the outer cylinder together, and releasing the outer cylinder from the fixing ring. At this time, the drive servo motor can rotate the outer cylinder together, and the outer cylinder will drive the scraper to rotate, thereby scraping off the hydrolytic scale on the inner wall of the reactor.

[0017] In this utility model, the integrated production equipment for catalytic hydrolysis of metatitanic acid using low-concentration titanium liquid can be directly driven by the existing servo motor through a wall scraping mechanism, thereby driving the internal scraper to rotate, which helps to scrape off the hydrolytic scale generated on the inner wall, making it simpler and more convenient.

[0018] In this invention, the production equipment integrates multiple functions such as heating, mixing, reaction, and wall scraping. While realizing its processing and production, it can easily clean the reaction vessel that produces metatitanic acid, thereby removing the hydrolytic scale generated on the inner wall and avoiding any impact on heating and subsequent processes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of an integrated production equipment for the catalytic hydrolysis of metatitanic acid using low-concentration titanium liquid, as proposed in this utility model.

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the stirring rod of an integrated production equipment for the catalytic hydrolysis of metatitanic acid using low-concentration titanium liquid, as proposed in this utility model.

[0021] Figure 3 This is a cross-sectional structural schematic diagram of the wall scraping mechanism of an integrated production equipment for the catalytic hydrolysis of metatitanic acid using low-concentration titanium liquid, as proposed in this utility model.

[0022] Figure 4 This utility model Figure 3 Enlarged view of the structure of part A in the middle.

[0023] In the diagram: 1. High-level tank; 2. Preparation tank; 3. Reactor; 4. Outer shell; 5. Servo motor; 6. Stirring rod; 7. Outer cylinder; 8. Scraper; 9. Stirring blade; 10. Fixing ring; 11. Threaded cylinder; 12. Inner ring; 13. Insert bar; 14. Tension spring; 15. Slot; 16. Side groove; 17. Fixing plate; 18. Bottom groove; 19. Sliding hole; 20. Inclined surface. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Reference Figure 1 An integrated production equipment includes: a high-level tank 1, a preparation tank 2, a reaction vessel 3, and a wall scraping mechanism, among other components. The high-level tank 1 is used to heat the low-concentration titanium liquid; it is equipped with a heating element, which can be a PTC heating element or other commercially available models. The heated low-concentration titanium liquid is then transported to the preparation tank 2 through a pipeline equipped with a pump.

[0027] Preparation tank 2 is also equipped with a heating element to heat the added sodium hydroxide solution and mix it with the low-concentration titanium liquid transported from high-level tank 1. The resulting sodium metatitanate is then transported to reactor 3 through a pipeline equipped with a pump, while the low-concentration titanium liquid in high-level tank 1 continues to be transported to reactor 3 through a pipeline equipped with a pump.

[0028] Reference Figure 2 The reaction vessel 3 is used to react the sodium metatitanate and sodium metatitanate mixture to generate the desired product. A stirring rod 6 is installed inside the reaction vessel 3, and multiple stirring blades 9 are fixedly installed on the outer wall of the stirring rod 6 to ensure thorough mixing of the reactants. The top of the stirring rod 6 rotates through the reaction vessel 3 and is fixedly connected to the reducer of the servo motor 5. The servo motor 5 is fixed to the top of the reaction vessel 3 through the housing 4, providing power to the stirring rod 6, thereby mixing the sodium metatitanate and sodium metatitanate, heating them through the heating element in the reaction vessel 3, then maintaining the temperature before a second heating to boiling, until metatitanic acid is generated.

[0029] Reference Figure 3-4 To remove the hydrolytic scale formed on the inner wall of the reactor 3, the equipment is also equipped with a wall scraping mechanism. The wall scraping mechanism includes multiple scraper blades 8, which are fitted against the inner wall of the reactor 3. An outer cylinder 7 is rotatably sleeved on the outer wall inside the reactor 3, and the multiple scraper blades 8 are fixedly installed on the outer wall of the outer cylinder 7. The top of the outer cylinder 7 rotatably extends to the outside of the reactor 3.

[0030] Furthermore, the scraping mechanism also includes multiple inserts 13, threaded cylinders 11, inner rings 12, and tension springs 14. The outer cylinder 7, located on the outer wall of the reactor 3, has multiple sliding holes 19, and the inserts 13 are slidably disposed within these holes. The outer wall of the stirring rod 6 has slots 15 that mate with the inserts 13. A fixing ring 10 is fixedly disposed on the top of the reactor 3, and the outer cylinder 7 is located inside the fixing ring 10. Multiple bottom grooves 18 are formed on the top of the fixing ring 10, and the bottom of the other end of the insert 13 mates with one of the bottom grooves 18. The threaded cylinder 11 is threaded onto the outer wall of the fixing ring 10, and the inner ring 12 is fixedly disposed on the top of the inner wall of the threaded cylinder 11, mates with the inclined surface 20 at one end of the insert 13. A side groove 16 is formed on one side of the insert 13, and a fixing plate 17 located inside the side groove 16 is fixedly disposed on the inner wall of one side of the sliding hole 19. The tension spring 14 is disposed inside the side groove 16, with its two ends fixedly disposed on one side of the adjacent fixing plate 17 and the inner wall of one side of the side groove 16, respectively, to provide elastic force for the reset of the insert 13.

[0031] Specifically, when the threaded cylinder 11 is rotated upwards, the insert 13 will be moved outwards by the force of the tension spring 14. One end of the insert 13 will disengage from the inside of the slot 15, releasing the connection between the stirring rod 6 and the outer cylinder 7. The bottom of the other end will be inserted into the bottom groove 18, thereby fixing the outer cylinder 7 and the fixing ring 10. At this time, the drive servo motor 5 can drive the stirring rod 6 and the stirring blade 9 on the outer wall to rotate and mix. Conversely, when the threaded cylinder 11 is rotated downwards, the inner ring 12 on the inner wall of the threaded cylinder 11 will abut against the inclined surface 20, thereby pushing the insert 13 to move inwards, fixing the stirring rod 6 and the outer cylinder 7 together, and releasing the outer cylinder 7 from the fixing ring 10. At this time, the drive servo motor 5 can rotate the outer cylinder 7 together, and the outer cylinder 7 will drive the scraper 8 to rotate, thereby scraping off the hydrolytic scale on the inner wall of the reactor 3. During the scraping, ionized water can also be sprayed into the interior for rinsing to help with cleaning. The waste after cleaning can be discharged by connecting the discharge pipe or by directly removing the bottom of the reactor.

[0032] The connection between the slot 15, insert 13 and bottom groove 18 on the outer wall of the stirring rod 6 can be operated manually by controlling the motor or by opening a reserved gap.

[0033] This application can be used in the field of chemical equipment, or in other fields applicable to this application.

[0034] Example 2

[0035] refer to Figure 1 An improvement based on Example 1: An integrated production equipment for the catalytic hydrolysis of metatitanic acid using low-concentration titanium liquid, which is applied to the field of chemical equipment, wherein the connecting pipes can be titanium alloy or fluoroplastic pipes.

[0036] The preparation tank 2 is also equipped with a stirring mechanism, which can also use a commonly available stirrer to ensure that the sodium hydroxide solution and the low-concentration titanium solution can be fully and evenly mixed.

[0037] However, as is well known to those skilled in the art, the working principles and wiring methods of the servo motor 5, the stirring mechanism and the heating element are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0038] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated production equipment for the catalytic hydrolysis of metatitanic acid using low-concentration titanium liquid, characterized in that, include: High-level tank (1) is used to heat low-concentration titanium liquid; Preparation tank (2) is used to heat sodium hydroxide solution and mix it with low-concentration titanium solution. The preparation tank (2) is located on one side of the high-level tank (1). The high-level tank (1) and the preparation tank (2) are connected to each other by a pipeline with a pump. The reactor (3) is used to mix low-concentration titanium liquid with sodium metatitanate. The reactor (3) is located on one side of the preparation tank (2). The preparation tank (2) and the reactor (3) are connected to each other through a pipeline with a pump. The high-level tank (1) and the reactor (3) are connected to each other through a pipeline with a pump. The reactor (3) is equipped with a stirring rod (6) rotating inside. The outer wall of the stirring rod (6) is fixedly equipped with multiple stirring blades (9). A wall scraping mechanism is used to remove hydrolytic scale from the inner wall of the reactor (3), and the wall scraping mechanism is located inside the reactor (3).

2. The integrated production equipment for low-concentration titanium liquid catalytic hydrolysis of metatitanic acid according to claim 1, characterized in that, The top of the reactor (3) is fixedly provided with a shell (4), and a servo motor (5) is fixedly provided inside the shell (4). The top of the stirring rod (6) rotates through the reactor (3) and is fixedly connected to the reducer of the servo motor (5).

3. The integrated production equipment for low-concentration titanium liquid catalytic hydrolysis of metatitanic acid according to claim 2, characterized in that, The scraping mechanism includes multiple scraper strips (8), which are attached to the inner wall of the reactor (3). The stirring rod (6) is located inside the reactor (3) and is rotatably fitted with an outer cylinder (7). The multiple scraper strips (8) are fixedly installed on the outer wall of the outer cylinder (7). The top of the outer cylinder (7) rotates through to the outside of the reactor (3).

4. The integrated production equipment for low-concentration titanium liquid catalytic hydrolysis of metatitanic acid according to claim 3, characterized in that, The scraping mechanism also includes multiple inserts (13). The outer cylinder (7) is located on the outer wall of the reactor (3) and has multiple sliding holes (19). The multiple inserts (13) are slidably disposed inside the multiple sliding holes (19). The outer wall of the stirring rod (6) has multiple slots (15). One end of the multiple inserts (13) is respectively engaged with the multiple slots (15). The top of the reactor (3) is fixedly provided with a fixing ring (10). The outer cylinder (7) is located inside the fixing ring (10). The top of the fixing ring (10) has multiple bottom grooves (18). The bottom of the other end of the multiple inserts (13) is respectively engaged with the multiple bottom grooves (18).

5. The integrated production equipment for low-concentration titanium liquid catalytic hydrolysis of metatitanic acid according to claim 4, characterized in that, The scraping mechanism also includes a threaded cylinder (11), which is threaded onto the outer wall of the fixing ring (10). An inner ring (12) is fixedly installed on the top of the inner wall of the threaded cylinder (11). A slope (20) is opened on the top of one end of the insert (13). The inner ring (12) cooperates with multiple slopes (20). A side groove (16) is opened on one side of the insert (13). A fixing plate (17) is fixedly installed on the inner wall of one side of the sliding hole (19). The fixing plate (17) is located inside the side groove (16). A tension spring (14) is installed inside the side groove (16). The two ends of the tension spring (14) are respectively fixedly installed on one side of the adjacent fixing plate (17) and on one side of the inner wall of the side groove (16).

6. The integrated production equipment for low-concentration titanium liquid catalytic hydrolysis of metatitanic acid according to claim 1, characterized in that, Heating elements are installed inside the high-level tank (1), the preparation tank (2), and the reaction vessel (3).

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