A hydrolysis apparatus for the production of titanium dioxide

Abstract

The utility model relates to titanium dioxide preparation technical field, and disclose a kind of for preparing titanium dioxide hydrolytic device, including bearing mechanism and preparation mechanism, the preparation mechanism is set in the top of bearing mechanism, the preparation mechanism includes proportioning unit and stirring unit group composition, the proportioning unit fixedly connected in the top of bearing mechanism, the stirring unit movably connected in the top of bearing mechanism.This for preparing titanium dioxide hydrolytic device, by the double control mode of metering valve and weighing table, accurate metering and weighing are carried out to ingredients, ensure that the proportion of raw material entering reaction tank is accurate, provide basis for preparing high-quality titanium dioxide, avoid product quality problem caused by batching error, by concentration detector can real-time monitoring reaction tank inner material concentration, judge whether concentration is qualified before discharging, ensure that product meets pharmaceutical standard, improve production efficiency and product qualification rate.

Description

Technical Field

[0001] This utility model relates to the field of titanium dioxide preparation technology, specifically to a hydrolysis device for preparing titanium dioxide. Background Technology

[0002] A hydrolysis apparatus for titanium dioxide preparation is a device used to hydrolyze molten titanium. It typically consists of a reaction vessel, a stirrer, a heating or cooling device, an inlet, and an outlet. During hydrolysis, the molten titanium is thoroughly mixed and reacted under specific temperature and acidity conditions by the stirrer, causing titanium ions to hydrolyze and form titanium dioxide hydrate precipitate. Subsequent processing yields pharmaceutical-grade titanium dioxide. This apparatus allows for precise control of the hydrolysis reaction conditions to ensure product quality and yield.

[0003] The prior art discloses a hydrolysis device for titanium dioxide production, application number 202122238516.8, which includes a sealing cover and a motor. The motor is located above the center of the sealing cover, the feed port is located above the left end of the sealing cover, the observation port is located above the right end of the sealing cover, the body is located at the lower end of the sealing cover, and the discharge port is located at the lower center of the body. This utility model uses a water storage tank to continuously hold boiling water. During the titanium dioxide production hydrolysis process, the internal situation can be observed through the observation port, and then an appropriate amount of water can be added. The water added throughout the process does not come into contact with boiling water, ensuring the safety of the operators. A heat insulation layer is installed on the outside of the reaction tank. The heat insulation layer uses rock wool as the main material, which has the characteristics of being non-flammable, non-toxic, having a low thermal conductivity, good sound absorption performance, insulation, good chemical stability, and long service life. This prevents the risk of burns to the operators due to excessive heat in the machine body, thus improving its practicality.

[0004] The aforementioned device features a multi-layer design to prevent burns to operators from overheating the machine. However, the device typically requires manual material addition, which results in inaccurate material feeding and poor performance. Improvements are needed to address this issue. Utility Model Content

[0005] The purpose of this invention is to provide a hydrolysis apparatus for preparing titanium dioxide, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hydrolysis device for preparing titanium dioxide, comprising a support mechanism and a preparation mechanism, wherein the preparation mechanism is disposed on the top of the support mechanism.

[0007] The preparation mechanism comprises a proportioning unit and a stirring unit. The proportioning unit is fixedly connected to the top of the support mechanism, and the stirring unit is movably connected to the top of the support mechanism.

[0008] Preferably, the supporting mechanism includes a base, a reaction vessel, a protective shell, a control panel, a discharge valve, and a concentration detector. The reaction vessel is fixedly connected to the top of the base, the protective shell is fixedly connected to the surface of the reaction vessel, the control panel is fixedly connected to the surface of the protective shell, the discharge valve is fixedly connected to the bottom of the reaction vessel, and the concentration detector is fixedly connected to the surface of the discharge valve.

[0009] Preferably, the proportioning unit includes a support frame, a weighing platform, a metering valve, a feed connection pipe, a proportioning box, and a discharge port. The support frame is fixedly connected to the top of the base, the weighing platform is fixedly connected to the top of the support frame, the metering valve is fixedly connected inside the support frame, the feed connection pipe is fixedly connected to the bottom of the metering valve, the proportioning box is fixedly connected to the top of the weighing platform, and a pressure weighing component is provided on the top of the weighing platform. The proportioning box is fixed to the load-bearing end of the pressure weighing component, and the discharge port is fixedly connected to the side of the proportioning box. An electric valve is provided inside the discharge port, which can accurately proportion each ingredient through both metering transmission and weighing.

[0010] Preferably, the stirring unit includes a top cover, a connecting pipe, a pressure relief valve, a motor, and a stirring frame. The top cover is threaded to the top of the reaction vessel, the connecting pipe is fixedly connected to the top of the top cover, the pressure relief valve and the motor are both fixedly connected to the top of the top cover, the motor is fixedly connected to the top of the top cover, and the stirring frame is rotatably connected to the bottom of the top cover to stir the reaction.

[0011] Preferably, the output pipe of the metering valve is connected to the interior of the mixing tank, serving as the main guide valve.

[0012] Preferably, both the surface of the top cover and the surface of the discharge connection port are provided with threaded sleeves, and the two are connected to each other by a connecting pipe provided on the surface of the top cover. This facilitates disassembly and assembly.

[0013] Preferably, the stirring rack is fixedly connected to the output end of the motor, serving the function of outputting stirring.

[0014] Preferably, a heating wire is provided inside the protective shell, wherein the heating wire is electrically connected to the control panel and plays the main heating role.

[0015] Preferably, the detection head of the concentration detector extends into the discharge valve and the interior of the reaction vessel, enabling the detection of whether the concentration is within acceptable limits before discharge.

[0016] Preferably, the bottom of the reaction vessel is provided with a discharge port, which is connected to a discharge valve for easy discharge.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This hydrolysis device for preparing titanium dioxide uses a dual control method of metering valve and weighing platform to accurately measure and weigh the ingredients, ensuring the precise proportion of raw materials entering the reaction tank. This provides a foundation for the preparation of high-quality titanium dioxide, such as pharmaceutical titanium dioxide and other applications with high requirements for titanium dioxide quality, and avoids product quality problems caused by ingredient errors.

[0019] 2. This hydrolysis device for preparing titanium dioxide can monitor the concentration of materials in the reaction tank in real time through a concentration detector, determine whether the concentration is qualified before discharge, ensure that the product meets pharmaceutical standards, and improve production efficiency and product qualification rate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0021] Figure 2 This is a side view of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the separation structure of the proportioning box of this utility model;

[0023] Figure 4 This is a schematic diagram of the top cover separation structure of this utility model.

[0024] In the diagram: 1. Supporting mechanism; 101. Base; 102. Reaction vessel; 103. Protective outer shell; 104. Control panel; 105. Discharge valve; 106. Concentration detector; 2. Preparation mechanism; 201. Support frame; 202. Weighing platform; 203. Metering valve; 204. Feed connection pipe; 205. Proportioning box; 206. Discharge connection port; 207. Pressure weighing assembly; 211. Top cover; 212. Connecting pipe; 213. Pressure relief valve; 214. Motor; 215. Stirring frame. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-4 The present invention provides the following technical solution: a hydrolysis device for preparing titanium dioxide, comprising a support mechanism 1 and a preparation mechanism 2, wherein the preparation mechanism 2 is disposed on the top of the support mechanism 1.

[0027] The preparation mechanism 2 consists of a proportioning unit and a stirring unit. The proportioning unit is fixedly connected to the top of the support mechanism 1, and the stirring unit is movably connected to the top of the support mechanism 1.

[0028] The supporting mechanism 1 consists of a base 101, a reaction vessel 102, a protective shell 103, a control panel 104, a discharge valve 105, and a concentration detector 106. The reaction vessel 102 is fixedly connected to the top of the base 101, and a discharge port is provided at the bottom of the reaction vessel 102, which is connected to the discharge valve 105 for easy discharge. The detection head of the concentration detector 106 extends to the discharge valve 105 and the interior of the reaction vessel 102, and can detect whether the concentration is qualified before discharge. The protective shell 103 is fixedly connected to the surface of the reaction vessel 102, and a heating wire is provided inside the protective shell 103. The heating wire is electrically connected to the control panel 104 and plays the main heating role. The control panel 104 is fixedly connected to the surface of the protective shell 103. The discharge valve 105 is fixedly connected to the bottom of the reaction vessel 102, and the concentration detector 106 is fixedly connected to the surface of the discharge valve 105.

[0029] The proportioning unit includes a support frame 201, a weighing platform 202, a metering valve 203, a feed connection pipe 204, a proportioning box 205, and a discharge connection port 206. The support frame 201 is fixedly connected to the top of the base 101, the weighing platform 202 is fixedly connected to the top of the support frame 201, the metering valve 203 is fixedly connected inside the support frame 201, and the output pipe of the metering valve 203 is connected to the inside of the proportioning box 205, serving as the main inlet. The feed connection pipe 204 is fixedly connected to the bottom of the metering valve 203, the proportioning box 205 is fixedly connected to the top of the weighing platform 202, and the discharge connection port 206 is fixedly connected to the side of the proportioning box 205, enabling the proportioning of each ingredient through metering and transmission. The mixing unit, which uses both weighing and other methods for precise proportioning, includes a top cover 211, a connecting pipe 212, a pressure relief valve 213, a motor 214, and a stirring frame 215. The top cover 211 is threaded to the top of the reaction vessel 102. Both the surface of the top cover 211 and the surface of the discharge port 206 are provided with threaded sleeves, and the two are connected to each other through the connecting pipe 212 provided on the surface of the top cover 211, which facilitates disassembly and assembly. The pressure relief valve 213 and the motor 214 are both fixedly connected to the top of the top cover 211. The stirring frame 215 is rotatably connected to the bottom of the top cover 211 and is fixedly connected to the output end of the motor 214, which plays the role of outputting stirring and stirring reaction.

[0030] In use, the metering valve 203 is an electromagnetic metering valve. First, through the metering valve 203 and the feed connection pipe 204 of the proportioning unit, an external centrifugal pump sequentially introduces the titanium raw material solution, crystal guiding agent, neutralizing agent, etc., into the proportioning tank 205 in proportion. Among these, the additives for adjusting acidity and promoting reaction, which exist in powder form, are dissolved into liquid form in the reaction solvent before being added. During this process, the pressure weighing component 207 between the weighing platform 202 and the proportioning tank 205 weighs the proportioning tank 205 in real time to ensure accurate material proportioning. After all the above materials have been added, water is introduced through metering valve 203. The water flow not only participates in the hydrolysis reaction but also flushes the inside of the mixing tank 205 and the pipes, reducing material residue and preventing it from affecting the accuracy of subsequent weighing and causing pipe contamination. After the mixing is completed, the electric valve in the discharge port 206 is opened, allowing the mixed materials to enter the reaction tank 102 through the discharge port 206 and connecting pipe 212. Then, the heating wire in the protective shell 103 is activated through the control panel 104 to heat the reaction tank 102, providing a suitable temperature for the hydrolysis reaction. At the same time, the motor 214 drives the stirring rack 215 to rotate, promoting thorough mixing of the materials. During the reaction, if the internal pressure is too high, the pressure relief valve 213 can release the pressure to ensure safety. After the reaction is complete, concentration detector 106 detects the material concentration at reaction vessel 102 and discharge valve 105. Titanium dioxide generated by the hydrolysis reaction generally exists in the reaction vessel as a solid precipitate. The concentration detector can be based on optical principles, such as a spectrophotometer, to calculate the concentration by measuring the absorbance of light at a specific wavelength, or on electrochemical principles, such as an ion-selective electrode, to determine the concentration by detecting the ion electrode potential, thus determining whether the reaction is complete and whether the product concentration meets the standard. The detection results are transmitted to control panel 104 for data recording and analysis. If the data is qualified, discharge valve 105 is opened, and the material is discharged through the discharge port at the bottom of reaction vessel 102. Here, the concentration detector used is typically an optical spectrophotometer-type concentration detector, which calculates the material concentration by measuring the absorbance of light at a specific wavelength passing through the material and applying the Lambert-Beer law; alternatively, an electrochemical ion-selective electrode-type concentration detector can be used, which determines the concentration by detecting the relationship between the ion electrode potential and the concentration.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrolysis apparatus for preparing titanium dioxide, comprising a support mechanism (1) and a preparation mechanism (2), characterized in that: The preparation mechanism (2) is located on top of the support mechanism (1); The preparation mechanism (2) consists of a proportioning unit and a stirring unit. The proportioning unit is fixedly connected to the top of the support mechanism (1), and the stirring unit is movably connected to the top of the support mechanism (1). The supporting mechanism (1) includes a base (101), a reaction vessel (102), a protective shell (103), a control panel (104), a discharge valve (105), and a concentration detector (106). The reaction vessel (102) is fixedly connected to the top of the base (101), the protective shell (103) is fixedly connected to the surface of the reaction vessel (102), the control panel (104) is fixedly connected to the surface of the protective shell (103), the discharge valve (105) is fixedly connected to the bottom of the reaction vessel (102), and the concentration detector (106) is fixedly connected to the surface of the discharge valve (105). The proportioning unit includes a support frame (201), a weighing platform (202), a metering valve (203), a feed connection pipe (204), a proportioning box (205), and a discharge connection port (206). The support frame (201) is fixedly connected to the top of the base (101), the weighing platform (202) is fixedly connected to the top of the support frame (201), the metering valve (203) is fixedly connected to the inside of the support frame (201), the feed connection pipe (204) is fixedly connected to the bottom of the metering valve (203), the proportioning box (205) is fixedly connected to the top of the weighing platform (202), and the discharge connection port (206) is fixedly connected to the side of the proportioning box (205).

2. The hydrolysis apparatus for preparing titanium dioxide according to claim 1, characterized in that: The stirring unit includes a top cover (211), a connecting pipe (212), a pressure relief valve (213), a motor (214), and a stirring rack (215). The top cover (211) is threaded to the top of the reaction vessel (102). The connecting pipe (212) is fixedly connected to the top of the top cover (211). The pressure relief valve (213) and the motor (214) are both fixedly connected to the top of the top cover (211). The motor (214) is fixedly connected to the top of the top cover (211). The stirring rack (215) is rotatably connected to the bottom of the top cover (211).

3. The hydrolysis apparatus for preparing titanium dioxide according to claim 2, characterized in that: The output pipe of the metering valve (203) is connected to the interior of the mixing tank (205).

4. The hydrolysis apparatus for preparing titanium dioxide according to claim 3, characterized in that: Both the surface of the top cover (211) and the surface of the discharge connection port (206) are provided with threaded sleeves, and the two are connected to each other by a connecting pipe (212) provided on the surface of the top cover (211).

5. The hydrolysis apparatus for preparing titanium dioxide according to claim 4, characterized in that: The stirring rack (215) is fixedly connected to the output end of the motor (214).

6. The hydrolysis apparatus for preparing titanium dioxide according to claim 1, characterized in that: The protective housing (103) is provided with a heating wire inside, which is electrically connected to the control panel (104).

7. The hydrolysis apparatus for preparing titanium dioxide according to claim 1, characterized in that: The detection head of the concentration detector (106) extends into the discharge valve (105) and the interior of the reaction vessel (102).

8. The hydrolysis apparatus for preparing titanium dioxide according to claim 7, characterized in that: The bottom of the reaction vessel (102) is provided with a discharge port, which is connected to the discharge valve (105).

9. The hydrolysis apparatus for preparing titanium dioxide according to claim 1, characterized in that: The top of the weighing platform (202) is provided with a pressure weighing component (207), wherein the proportioning box (205) is fixed to the load-bearing end of the pressure weighing component (207).

10. The hydrolysis apparatus for preparing titanium dioxide according to claim 1, characterized in that: An electric valve is installed inside the discharge port (206).

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