Cooling device for production of bactericidal core-coated titanium dioxide

Abstract

The utility model relates to the technical field of titanium dioxide production, and discloses a cooling device for bactericidal core-wrapped titanium dioxide production, which comprises a cooling barrel, a crystallization barrel is arranged below the cooling barrel, the cooling barrel is communicated with the crystallization barrel through a communicating pipe, a control valve is arranged on the communicating pipe, and a feeding pipe is arranged at the top of the cooling barrel. A first cooling assembly is arranged in the cooling barrel and comprises multiple sets of annular cooling pipes arranged side by side, and the upper ends and the lower ends of the multiple sets of annular cooling pipes communicate with one another through upper communicating pipes and lower communicating pipes correspondingly. The inside of the crystallization barrel is of a double-layer structure, a second cooling assembly is arranged between the double-layer structure and comprises a cooling coil, the two ends of the cooling coil are connected with a liquid inlet pipe and a liquid outlet pipe respectively, the section of the inner wall of the crystallization barrel is of a U-shaped structure, and a stirring assembly is arranged in the crystallization barrel. Cooling is further accelerated, and the overall cooling crystallization efficiency is remarkably improved; and stable operation and efficient operation of equipment are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of titanium dioxide production technology, and in particular to a cooling device for the production of bactericidal cored titanium dioxide. Background Technology

[0002] Titanium dioxide is an important inorganic chemical pigment, primarily composed of titanium dioxide, and has significant applications in industries such as coatings, inks, papermaking, plastics and rubber, synthetic fibers, and ceramics. Depending on the desired bactericidal properties, suitable metal salts or oxides are selected as coating agents, such as silver salts, copper salts, and zinc salts. These metal ions possess bactericidal activity and are adhered to the surface of titanium dioxide particles through a coating process.

[0003] Titanium dioxide production includes titanium ore crushing, acid hydrolysis, freeze crystallization, concentration hydrolysis, salt treatment, and calcination. Freeze crystallization utilizes the property that the solubility of ferrous sulfate decreases as the temperature of the titanium solution decreases. The titanium solution is cooled in a freezer to precipitate ferrous sulfate crystals, which are then separated by a filter.

[0004] The existing application publication number CN222400303U discloses a ferrous sulfate crystallization freezing pot for titanium dioxide production, including a heat exchange pot, a crystallization pot, a cooling coil, an inlet pipe, an outlet pipe, a stirrer, and a stirring motor. The crystallization pot is installed inside the heat exchange pot, and a cooling chamber is formed between the crystallization pot and the heat exchange pot. The cooling coil is installed in the cooling chamber. One end of the inlet pipe and the outlet pipe are fixed in the cooling chamber, and the other end is connected to a pump. The stirring motor is installed on the top of the crystallization pot, and the stirrer is set inside the crystallization pot and connected to the power output end of the stirring motor. This application can solve the problems of ferrous sulfate crystals precipitated from the existing freezing pot remaining on a coil and ferrous sulfate crystals at the bottom of the pot easily precipitating and caking.

[0005] However, this solution still has shortcomings. In actual use, the cooling and crystallization process is not processed in steps. The liquid is cooled and crystallized in a single device, resulting in a long overall time consumption and low efficiency. There are dead corners on the inner wall of the crystallization tank, which are difficult to clean thoroughly with ordinary scrapers. Residual materials can easily affect the quality of subsequent crystallization.

[0006] Therefore, it is necessary to provide a cooling device for the production of sterilizable encapsulated titanium dioxide to solve the above-mentioned technical problems. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cooling device for the production of sterile cored titanium dioxide.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a cooling device for the production of sterilizable cored titanium dioxide, comprising a cooling tank, a crystallization tank below the cooling tank, the cooling tank and the crystallization tank being connected by a connecting pipe, a control valve being provided on the connecting pipe, a feeding pipe being provided at the top of the cooling tank, and a first cooling component being provided inside the cooling tank, the first cooling component comprising multiple sets of annular cooling pipes placed side by side, the upper and lower ends of the multiple sets of annular cooling pipes being connected to each other by an upper connecting pipe and a lower connecting pipe, respectively;

[0009] The crystallization tank has a double-layer structure inside, with a second cooling assembly between the two layers. The second cooling assembly includes a cooling coil, with an inlet pipe and an outlet pipe connected to both ends of the cooling coil. The inner wall of the crystallization tank has a U-shaped cross-section, and a stirring assembly is provided inside the crystallization tank.

[0010] Preferably, the stirring assembly includes a stirring shaft that is rotatably disposed on the inner wall of the crystallization tank, a J-shaped scraper is provided inside the crystallization tank, the J-shaped scraper is in contact with the inner wall of the crystallization tank, and a stirring rod is connected between the J-shaped scraper and the stirring shaft.

[0011] Preferably, a second motor is connected to the bottom of the crystallization tank, and the output end of the second motor extends to the crystallization tank and is connected to the stirring shaft.

[0012] Preferably, the stirring shaft and the bend of the J-shaped scraper are connected by a support rod.

[0013] Preferably, a first motor is provided on the top of the cooling tank, and the output end of the first motor extends to the cooling tank and is connected to the fan blades.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] I. In this utility model, a step-by-step cooling and crystallization process is adopted. The liquid is first initially cooled in a cooling tank through multiple sets of annular cooling pipes, and then flows into a crystallization tank in an orderly manner through a control valve for crystallization. Inside the cooling tank, a first motor drives a fan blade to stir, improving the cooling efficiency; inside the crystallization tank, two layers of stirring rods work in conjunction with a second cooling component to further accelerate cooling and significantly improve the overall cooling and crystallization efficiency.

[0016] Second, in this utility model, the inner wall of the crystallization tank has a U-shaped structure, which is equipped with a J-shaped scraper to ensure thorough cleaning. The stirring shaft and the J-shaped scraper are connected by a support rod to enhance the structural strength of the stirring assembly and ensure stable operation and efficient operation of the equipment. The liquid outlet pipe is connected to the lower connecting pipe, so that the cooling water that has passed through the cooling coil can be reintroduced into the cooling system for cooling the liquid in the tank, which greatly improves the water resource utilization rate. Attached Figure Description

[0017] Figure 1 This is a front structural sectional view of the present invention;

[0018] Figure 2 This is a structural diagram of the first cooling component of this utility model;

[0019] Figure 3 This is a structural diagram of the stirring assembly described in this utility model.

[0020] In the diagram: 1-Cooling tank; 11-Feeding pipe; 12-Connecting pipe; 13-First motor; 14-Fan blade; 15-Annular cooling pipe; 16-Upper connecting pipe; 17-Lower connecting pipe; 2-Crystallizing tank; 21-Cooling coil; 211-Liquid inlet pipe; 212-Liquid outlet pipe; 22-Second motor; 23-Stirring shaft; 24-J-type scraper; 25-Stirring rod; 26-Support rod. Detailed Implementation

[0021] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Please see Figures 1-3This utility model provides an embodiment of a cooling device for the production of sterilizable cored titanium dioxide, comprising a cooling tank 1, a crystallization tank 2 located below the cooling tank 1, the cooling tank 1 and the crystallization tank 2 being connected by a connecting pipe 12, a control valve being provided on the connecting pipe 12, a feeding pipe 11 being provided at the top of the cooling tank 1, a first cooling assembly being provided inside the cooling tank 1, the first cooling assembly including multiple sets of annular cooling pipes 15 placed side by side, the upper and lower ends of the multiple sets of annular cooling pipes 15 being connected to each other by an upper connecting pipe 16 and a lower connecting pipe 17 respectively; the crystallization tank 2 having a double-layer structure inside, with a second cooling assembly between the double-layer structure, the second cooling assembly including a cooling coil 21, with an inlet pipe 211 and an outlet pipe 212 connected to both ends of the cooling coil 21 respectively, the inner wall of the crystallization tank 2 having a U-shaped cross-section, and a stirring assembly being provided inside the crystallization tank 2.

[0025] One end of the upper connecting pipe 16 and the lower connecting pipe 17 extends into the cooling tank 1. The cooling tank 1 is filled with liquid to be cooled through the feeding pipe 11. Cooling water is introduced into the lower connecting pipe 17. The cooling water passes through multiple sets of annular cooling pipes 15 in sequence and is discharged from the upper connecting pipe 16. The liquid inside the cooling tank 1 is initially cooled and preserved through the multiple sets of annular cooling pipes 15. The control valve is opened to allow the liquid to flow into the crystallization tank 2 for crystallization treatment. Cooling water is added to the cooling coil 21 and the mixture is thoroughly stirred by the stirring assembly.

[0026] The liquid outlet pipe 212 can be connected to the lower connecting pipe 17, and the cooling water passing through the cooling coil 21 can be reused, improving the utilization rate. Through cooling and crystallization distribution treatment, the liquid is first cooled in the cooling tank 1 and then transferred to the crystallization tank 2, which greatly improves the cooling and crystallization efficiency. In addition, the liquid is added sequentially through the control valve to avoid adding too much liquid in sequence, which would reduce the cooling efficiency.

[0027] Furthermore, the stirring assembly includes a stirring shaft 23 that is rotatably mounted on the inner wall of the crystallization tank 2. A J-shaped scraper 24 is provided inside the crystallization tank 2. The J-shaped scraper 24 is in contact with the inner wall of the crystallization tank 2. A stirring rod 25 is connected between the J-shaped scraper 24 and the stirring shaft 23. A second motor 22 is connected to the bottom of the crystallization tank 2. The output end of the second motor 22 extends to the crystallization tank 2 and is connected to the stirring shaft 23.

[0028] The inner wall of the crystallization tank 2 adopts a U-shaped structure to avoid dead corners inside the tank. When the J-shaped scraper 24 rotates, it cleans the inner wall more thoroughly. At the same time, the stirring rod 25 adopts a two-layer structure, which fully stirs the internal liquid and makes the liquid fully contact the second cooling component, thereby improving the cooling efficiency.

[0029] Furthermore, the stirring shaft 23 and the bent section of the J-shaped scraper 24 are connected by a support rod 26, thereby improving the structural strength of the stirring assembly.

[0030] Furthermore, a first motor 13 is provided on the top of the cooling tank 1, and the output end of the first motor 13 extends to the cooling tank 1 and is connected to the fan blade 14.

[0031] The first motor 13 stirs the liquid inside the cooling tank 1 with the fan blades 14 to keep the internal liquid temperature consistent and increase the contact with the annular cooling pipe 15, thereby improving the cooling efficiency.

[0032] Working principle of this utility model:

[0033] 1. When using this utility model, the operator adds the liquid to be cooled through the feeding pipe 11, and cool water is introduced into the lower connecting pipe 17. The cool water passes through multiple sets of annular cooling pipes 15 in sequence and is discharged from the upper connecting pipe 16. The liquid inside the cooling tank 1 is initially cooled and stored through the multiple sets of annular cooling pipes 15.

[0034] 2. Open the control valve to allow the liquid to flow into the crystallization tank 2 for crystallization. Add cooling water to the cooling coil 21 and use the stirring component to fully stir the liquid inside, so that the liquid can fully contact the second cooling component and improve the cooling efficiency.

[0035] 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. A cooling device for producing bactericidal peroxynuclear titanium dioxide, characterized in that: The application relates to a cooling barrel (1) provided with a crystallization barrel (2) below, wherein the cooling barrel (1) and the crystallization barrel (2) are communicated through a communicating pipe (12) provided with a control valve, the top of the cooling barrel (1) is provided with a feeding pipe (11), the inside of the cooling barrel (1) is provided with a first cooling assembly, the first cooling assembly comprises a plurality of groups of annular cooling pipes (15) arranged side by side, the upper and lower ends of the plurality of groups of annular cooling pipes (15) are communicated with each other through upper and lower communicating pipes (16) and (17) respectively. The inside of the crystallization barrel (2) is of a double-layer structure, a second cooling assembly is arranged between the double-layer structure, the second cooling assembly comprises cooling coils (21), the two ends of the cooling coils (21) are connected with liquid inlet pipes (211) and liquid outlet pipes (212) respectively, the inner wall section of the crystallization barrel (2) is of a U-shaped structure, and the inside of the crystallization barrel (2) is provided with a stirring assembly.

2. The sterilizing and nucleating titanium dioxide production cooling device according to claim 1, characterized in that: The stirring assembly comprises a stirring rotating shaft (23) rotatably arranged on the inner wall of the crystallization barrel (2), the inside of the crystallization barrel (2) is provided with a J-shaped scraper (24) which is attached to the inner wall of the crystallization barrel (2), and the J-shaped scraper (24) and the stirring rotating shaft (23) are connected with a stirring rod (25).

3. The sterilizing and nucleating titanium dioxide production cooling device according to claim 2, characterized in that: The bottom of the crystallization barrel (2) is connected with a second motor (22), the output end of the second motor (22) extends to the crystallization barrel (2) and is connected with the stirring rotating shaft (23).

4. The sterilizing and nucleating titanium dioxide production cooling device according to claim 3, characterized in that: The stirring rotating shaft (23) and the bending part of the J-shaped scraper (24) are connected through a supporting rod (26).

5. The sterilizing and nucleating titanium dioxide production cooling device according to claim 1, characterized in that: The top of the cooling barrel (1) is provided with a first motor (13), the output end of the first motor (13) extends to the cooling barrel (1) and is connected with a fan blade (14).

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