Device for preparing and synthesizing hydrotalcite from carbon dioxide

Abstract

The utility model discloses a device for preparing and synthesizing hydrotalcite from carbon dioxide, which comprises a mixing tank used for preparing hydrotalcite, a hydrate introducing assembly used for introducing hydrotalcite preparation solution is arranged on one side of the mixing tank, and a carbon dioxide introducing assembly used for introducing carbon dioxide is arranged in the center of the top of the mixing tank. A collecting tank for collecting a mixed solution is mounted on one side of the bottom of the mixing tank. A hydrotalcite solution is introduced into the mixing tank through the delivery pump, a low-pressure area is formed when the hydrotalcite solution passes through the contraction section, and when the hydrotalcite solution passes through the throat pipe, the flow rate reaches the maximum value, and the pressure reaches the minimum value, so that carbon dioxide gas in the carbon dioxide storage tank can be sucked through the gas inlet pipe; meanwhile, by arranging the anti-backflow assembly, the gas-liquid mixture can be effectively prevented from flowing back, so that the practicability of the gas-liquid mixing device disclosed by the utility model is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrotalcite preparation technical field, especially in carbon dioxide preparation synthesis hydrotalcite device. BACKGROUND

[0002] The carbon dioxide preparation synthesis hydrotalcite device is an equipment for producing hydrotalcite, and specifically can be used for preparing calcium-aluminum hydrotalcite from carbon dioxide. The device can be related to reacting aluminum hydroxide and calcium hydroxide raw materials in an aqueous solution system to obtain calcium aluminate hydrate slurry, and then passing carbon dioxide into the slurry to form calcium-aluminum hydrotalcite precipitate. After solid-liquid separation and drying, the calcium-aluminum hydrotalcite product can be obtained.

[0003] A magnesium-aluminum hydrotalcite manufacturing device is disclosed in Chinese patent No. CN220531610U, which relates to the technical field of hydrotalcite production. The device includes a premixing box, a reaction kettle fixedly arranged at the bottom of the premixing box, a first motor movably arranged at the top of the premixing box, a movable plate fixedly arranged at the top of the first motor, movable rods fixedly arranged at both ends of the movable plate, a moving block fixedly arranged at one end of each movable rod, a lead screw movably arranged inside the moving block, a first bevel gear fixedly arranged on the outer surface of the lead screw, a second bevel gear movably arranged on the surface of the first bevel gear, a filter-pressing box fixedly arranged at the bottom of the reaction kettle, a liquid discharge pipe fixedly arranged on the surface of the filter-pressing box, a discharge hopper fixedly arranged at the bottom of the filter-pressing box, a feeding box fixedly arranged at the bottom of the discharge hopper, and a flash distillation host fixedly arranged on one side of the feeding box.

[0004] Although the above technical solution solves the corresponding technical problem, the above technical solution still has the following defects:

[0005] The mixing efficiency of the hydrotalcite solution and carbon dioxide in the manufacturing device of the above technical solution is low, thereby reducing the preparation efficiency of the hydrotalcite. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a carbon dioxide preparation synthesis hydrotalcite device, the hydrotalcite solution is passed into the mixing tank through the delivery pump, when the hydrotalcite solution passes through the contraction section, a low-pressure area is formed, when the throat pipe, the flow rate reaches the maximum value, and the pressure reaches the minimum value, thereby the carbon dioxide gas in the carbon dioxide storage tank can be sucked through the air inlet pipe, and the carbon dioxide and the hydrotalcite solution can be fully mixed, and the gas-liquid mixture can be effectively prevented from flowing back through the anti-backflow assembly, thereby improving the practicability of the utility model.

[0007] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the utility model is as follows:

[0008] A device for preparing synthetic hydrotalcite by carbon dioxide comprises:

[0009] The mixing tank for hydrotalcite preparation is provided with a hydrate feeding assembly for feeding the solution for hydrotalcite preparation on one side, a carbon dioxide feeding assembly for feeding carbon dioxide at the center of the top of the mixing tank, and a collecting tank for collecting the mixed solution on one side of the bottom of the mixing tank.

[0010] The device for preparing synthetic hydrotalcite by carbon dioxide comprises a converging section and a diverging section, and a throat pipe is arranged between the converging section and the diverging section.

[0011] The device for preparing synthetic hydrotalcite by carbon dioxide comprises a hydrate feeding assembly, and the hydrate feeding assembly comprises a hydrate storage tank for storing the solution for hydrotalcite preparation.

[0012] The device for preparing synthetic hydrotalcite by carbon dioxide comprises a converging section, and a feeding pump for feeding the solution for hydrotalcite preparation is arranged on one side of the converging section, and the feeding pump is in communication with the hydrate storage tank through a communication pipe.

[0013] The device for preparing synthetic hydrotalcite by carbon dioxide comprises a carbon dioxide feeding assembly, and the carbon dioxide feeding assembly comprises a carbon dioxide storage tank for storing carbon dioxide, and an air inlet pipe is arranged on the bottom of the carbon dioxide storage tank.

[0014] The device for preparing synthetic hydrotalcite by carbon dioxide comprises a carbon dioxide storage tank, and the carbon dioxide storage tank is in communication with the throat pipe through the air inlet pipe.

[0015] The device for preparing synthetic hydrotalcite by carbon dioxide comprises an air inlet pipe, and an anti-backflow assembly for preventing gas backflow is arranged in the air inlet pipe.

[0016] The device for preparing synthetic hydrotalcite by carbon dioxide comprises an anti-backflow assembly, and the anti-backflow assembly comprises a sealing ring fixedly connected to the inner wall of the air inlet pipe, and a sealing plate arranged on the bottom of the sealing ring and capable of being lifted.

[0017] The device for preparing synthetic hydrotalcite by carbon dioxide comprises a sealing ring and a sealing plate, and the sealing plate is fixedly connected to the top of the sealing ring and matched with the sealing ring.

[0018] The device for preparing synthetic hydrotalcite by carbon dioxide comprises an air inlet pipe, and an installation rod is fixedly connected to the inner wall of the air inlet pipe, two symmetrical limiting slide rods are slidably connected to the installation rod, one side of the limiting slide rods close to the sealing plate is fixedly connected to the sealing plate, and a sleeve spring is arranged on the limiting slide rods between the sealing plate and the installation rod.

[0019] The device for preparing synthetic hydrotalcite by carbon dioxide has at least the following beneficial effects:

[0020] The carbon dioxide preparation and synthesis hydrotalcite device provided by the utility model can store carbon dioxide gas in the carbon dioxide storage tank, and then the carbon dioxide gas can be inhaled into the carbon dioxide preparation and synthesis hydrotalcite device through the air inlet pipe, so that the carbon dioxide and the hydrotalcite solution can be fully mixed, and the gas-liquid mixture can be effectively prevented from flowing back through the anti-backflow assembly, thereby improving the practicability of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application. In the drawings:

[0022] Figure 1 It is a structure schematic view of the carbon dioxide preparation and synthesis hydrotalcite device of the utility model;

[0023] Figure 2 It is a structure schematic view of the mixing tank in the carbon dioxide preparation and synthesis hydrotalcite device of the utility model;

[0024] Figure 3 It is a sectional structure schematic view of the mixing tank in the carbon dioxide preparation and synthesis hydrotalcite device of the utility model;

[0025] Figure 4 It is a structure schematic view of the carbon dioxide inlet assembly in the carbon dioxide preparation and synthesis hydrotalcite device of the utility model;

[0026] Figure 5 It is a structure schematic view of the anti-backflow assembly in the carbon dioxide preparation and synthesis hydrotalcite device of the utility model.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 1, mixing tank; 2, hydrate inlet assembly; 3, carbon dioxide inlet assembly; 4, collection tank;

[0029] 101, contraction section; 102, diffusion section; 103, throat; 104, gas pressure stabilizer;

[0030] 201, hydrate storage tank; 202, delivery pump; 2021, communication pipe;

[0031] 301, carbon dioxide storage tank; 302, air inlet pipe; 303, anti-backflow assembly;

[0032] 3031, sealing ring; 3032, sealing plate; 3033, sealing gasket; 3034, mounting rod; 3035, limiting sliding rod; 3036, sleeve spring. DETAILED DESCRIPTION

[0033] The implementation of the application will be described in detail below with the help of the accompanying drawings and examples, so that the realization process of how the application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0034] Please refer to Figures 1 to 5 The embodiment of the utility model provides a kind of carbon dioxide preparation synthetic hydrotalcite device, including: the mixing tank 1 for hydrotalcite preparation, the hydrate inlet assembly 2 for solution into hydrotalcite preparation is installed on one side of mixing tank 1, the carbon dioxide inlet assembly 3 for carbon dioxide into is installed at the center of the top of mixing tank 1, the collecting tank 4 for mixed solution collection is installed on one side of the bottom of mixing tank 1.

[0035] Please refer to Figures 1 to 5 Mixing tank 1 includes contraction section 101 and diffusion section 102, and throat pipe 103 is arranged between contraction section 101 and diffusion section 102;

[0036] By adopting the above technical scheme, the hydrotalcite solution is passed into the mixing tank 1 by the delivery pump 202, a low-pressure area is formed when the hydrotalcite solution passes through the contraction section 101, and the flow rate reaches the maximum value and the pressure reaches the minimum value when passing through the throat pipe 103, so that the carbon dioxide gas in the carbon dioxide storage tank 301 can be sucked into through the air inlet pipe 302, and the carbon dioxide and the hydrotalcite solution can be fully mixed, and the backflow of the gas-liquid mixture can be effectively avoided by the anti-backflow assembly 303, thereby improving the practicability of the utility model.

[0037] The gas pressure stabilizer 104 is further installed on the mixing tank 1, and the gas pressure stabilizer 104 is composed of a pressure sensor, a DSP controller, an actuator and a valve.

[0038] The pressure sensor is used to detect the pressure inside the mixing tank 1, convert the pressure signal into an electrical signal and transmit it to the DSP controller, the DSP controller receives the signal of the pressure sensor, calculates according to the preset pressure value, and controls the actuator to adjust, the actuator controls the opening of the valve according to the instruction of the controller, so as to adjust the air flow, and further ensure that the pressure inside the mixing tank 1 is suitable for the reaction of hydrotalcite.

[0039] Please refer to Figures 1 to 5 The hydrate inlet assembly 2 includes a hydrate storage tank 201 for storing the solution for hydrotalcite preparation.

[0040] Please refer to Figures 1 to 5As shown, the side of the contraction section 101 is provided with a delivery pump 202 for delivering the hydrotalcite preparation solution, and the side of the delivery pump 202 is connected with the hydrate storage tank 201 through a communication pipe 2021, and the delivery pump 202 is arranged to deliver the hydrotalcite preparation solution in the hydrate storage tank 201.

[0041] Please refer to Figures 1 to 5 As shown, the carbon dioxide feeding assembly 3 comprises a carbon dioxide storage tank 301 for storing carbon dioxide, and the bottom of the carbon dioxide storage tank 301 is provided with an air inlet pipe 302, and the air inlet pipe 302 is arranged to deliver the carbon dioxide in the carbon dioxide storage tank 301 to the throat pipe 103.

[0042] Please refer to Figures 1 to 5 As shown, the bottom of the carbon dioxide storage tank 301 is connected with the throat pipe 103 through the air inlet pipe 302.

[0043] Please refer to Figures 1 to 5 As shown, the inside of the air inlet pipe 302 is provided with an anti-backflow assembly 303 for preventing gas backflow.

[0044] The anti-backflow assembly 303 comprises a sealing ring 3031 fixedly connected to the inner wall of the air inlet pipe 302, the bottom of the sealing ring 3031 is provided with a lifting sealing plate 3032, the inner wall of the air inlet pipe 302 is further fixedly connected with a mounting rod 3034, the mounting rod 3034 is slidably connected with two symmetrically arranged limiting slide rods 3035, one side of the limiting slide rod 3035 close to the sealing plate 3032 is fixedly connected with the sealing plate 3032, a sleeve spring 3036 is sleeved on the limiting slide rod 3035 between the sealing plate 3032 and the mounting rod 3034, when the throat pipe 103 generates negative pressure, the air in the air inlet pipe 302 will be sucked, and the sealing plate 3032 will be driven to separate from the sealing ring 3031, so as to ensure that the gas in the carbon dioxide storage tank 301 enters the diffusion section 102, and when the throat pipe 103 stops generating negative pressure, the sealing plate 3032 is driven to block the bottom of the sealing ring 3031 under the elastic force of the sleeve spring 3036, thereby effectively avoiding the gas-liquid backflow in the diffusion section 102.

[0045] Please refer to Figures 1 to 5 As shown, the top of the sealing plate 3032 is fixedly connected with a sealing gasket 3033 matched with the sealing ring 3031, and the sealing gasket 3033 is arranged to increase the sealing of the connection between the sealing plate 3032 and the sealing ring 3031.

[0046] The working principle of the utility model is: the hydrotalcite solution is passed into the mixing tank 1 through the delivery pump 202, when the hydrotalcite solution passes through the contraction section 101, a low pressure area is formed, when the throat pipe 103, the flow rate reaches the maximum value, the pressure reaches the minimum value, thereby can pass through the air inlet pipe 302 and inhale the carbon dioxide gas in the carbon dioxide storage tank 301, further can realize the full mixing of carbon dioxide and hydrotalcite solution, simultaneously when the negative pressure is generated in the throat pipe 103, the air in the air inlet pipe 302 will be inhaled, further can drive the sealing plate 3032 to separate from the sealing ring 3031, thereby guarantee the gas in the carbon dioxide storage tank 301 to enter the diffusion section 102, and when the negative pressure in the throat pipe 103 stops generating, under the elastic force of the sleeve spring 3036, drive the sealing plate 3032 to block the bottom of the sealing ring 3031, thereby effectively avoid the gas-liquid reflux in the diffusion section 102, thereby improve the practicability of the utility model.

[0047] The above description shows and describes several preferred embodiments of the utility model, but as previously described, it should be understood that the utility model is not limited to the form disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein by the above teaching or related art or knowledge. The modification and change made by the person skilled in the art without departing from the spirit and scope of the utility model should be within the protection scope of the utility model claims attached herein.

Claims

1. A device for the preparation of synthetic hydrotalcite from carbon dioxide, comprising a mixing tank (1) for the preparation of hydrotalcite, characterized in that, One side of the mixing tank (1) is provided with a hydrate feeding assembly (2) for feeding the hydrotalcite preparation solution, the center of the top of the mixing tank (1) is provided with a carbon dioxide feeding assembly (3) for feeding carbon dioxide, one side of the bottom of the mixing tank (1) is provided with a collection tank (4) for collecting the mixed solution; the mixing tank (1) comprises a contraction section (101) and a diffusion section (102), and a throat (103) is arranged between the contraction section (101) and the diffusion section (102).

2. A device for preparing synthetic hydrotalcite from carbon dioxide according to claim 1, characterized in that: The hydrate feeding assembly (2) comprises a hydrate storage tank (201) for storing the hydrotalcite preparation solution.

3. A device for producing synthetic hydrotalcite from carbon dioxide according to claim 2, characterized in that: The side of the contraction section (101) is provided with a delivery pump (202) for delivering the hydrotalcite preparation solution, and the side of the delivery pump (202) is in communication with the hydrate storage tank (201) through a communication pipe (2021).

4. The device for preparing synthetic hydrotalcite from carbon dioxide according to claim 3, wherein: The carbon dioxide feeding assembly (3) comprises a carbon dioxide storage tank (301) for storing carbon dioxide dissolved in carbon dioxide, and the bottom of the carbon dioxide storage tank (301) is provided with an air inlet pipe (302).

5. A device for producing synthetic hydrotalcite from carbon dioxide according to claim 4, characterized in that: The bottom of the carbon dioxide storage tank (301) is in communication with the throat (103) through the air inlet pipe (302).

6. A device for producing synthetic hydrotalcite from carbon dioxide according to claim 5, characterized in that: The inside of the air inlet pipe (302) is provided with an anti-backflow assembly (303) for preventing gas backflow.

7. A device for producing synthetic hydrotalcite from carbon dioxide according to claim 6, characterized in that: The anti-backflow assembly (303) comprises a sealing ring (3031) fixedly connected to the inner wall of the air inlet pipe (302), and the bottom of the sealing ring (3031) is provided with a lifting sealing plate (3032).

8. A device for producing synthetic hydrotalcite from carbon dioxide according to claim 7, characterized in that: The top of the sealing plate (3032) is fixedly connected with a sealing gasket (3033) matched with the sealing ring (3031).

9. The device for preparing synthetic hydrotalcite from carbon dioxide according to claim 8, wherein: The inner wall of the air inlet pipe (302) is also fixedly connected with a mounting rod (3034), the mounting rod (3034) is slidably connected with two symmetrically arranged limiting slide rods (3035), one side of the limiting slide rod (3035) close to the sealing plate (3032) is fixedly connected with the sealing plate (3032), and a sleeve spring (3036) is sleeved on the limiting slide rod (3035) between the sealing plate (3032) and the mounting rod (3034).

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