Device for preparing nano calcium carbonate by using ionic liquid

Abstract

The utility model belongs to the technical field of nano calcium carbonate preparation devices, and particularly discloses a device for preparing nano calcium carbonate by using ionic liquid, which comprises a reaction tank, three supporting legs are fixedly connected to the bottom of the reaction tank, a discharge port is fixedly connected to the bottom of the reaction tank, and the discharge port is positioned among the three supporting legs. The top of the reaction tank is connected with a feeding hole, the top of the reaction tank is connected with an air inlet, and the air inlet is positioned on one side of the feeding hole. According to the utility model, through the stirring assembly of the device, under the driving of the motor, the rotating shaft drives the stirring blades and the spiral blades to synchronously rotate, so that all-directional and high-efficiency stirring of a solution in the reaction tank is realized, not only is the stirring and mixing effect of the solution improved, but also the solution spirally ascends under the guide of the sleeve and falls into the solution at the bottom; the full contact between the solution and the injected carbon dioxide gas is promoted, so that the gas-liquid reaction efficiency is obviously improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of nano calcium carbonate preparation devices, and specifically relates to a device for preparing nano calcium carbonate by using ionic liquid. Background Art

[0002] Nano-calcium carbonate is a type of calcium carbonate particle with nano-scale size, which usually has a high specific surface area and high crystal purity. It is widely used in various fields, including material science, medicine, food, environmental protection, etc. In the field of nano-calcium carbonate preparation, traditional methods mostly use wet or dry processes.

[0003] Among them, the wet process mainly utilizes carbon dioxide gas to react with a calcium source under alkaline conditions to generate nano-calcium carbonate, but this method has the problems of complex reaction condition control, low production efficiency, and difficult to control product particle size and dispersibility. Although the dry process is simple to operate, the product purity is low and the particle size distribution is wide, which is difficult to meet the demand for high-quality nano-calcium carbonate. Therefore, a new method of preparing nano-calcium carbonate using ionic liquids has emerged. It uses ionic liquids as solvents and prepares liquids that can produce nano-scale calcium carbonate inside a reaction vessel through a solvent thermal synthesis method. This technology has the advantages of being environmentally friendly, highly controllable and having a high yield, but it requires multiple mixing and heating, as well as doping gas-liquid reactions during the preparation process. The existing reaction vessels have the problems of high equipment cost, low recycling efficiency of ionic liquids, and complex procedures when preparing this method. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a device for preparing nano calcium carbonate using ionic liquid.

[0005] To achieve the above purpose, the utility model provides a device for preparing nano calcium carbonate using ionic liquid, comprising a reaction tank, three supporting legs are fixedly connected to the bottom of the reaction tank, a discharge port is fixedly connected to the bottom of the reaction tank, and the discharge port is located between the three supporting legs, a feed port is connected to the top of the reaction tank, an air inlet is connected to the top of the reaction tank, and the air inlet is located on one side of the feed port, a stirring component is arranged inside the reaction tank, the stirring component is used to stir the solution inside the reaction tank and accelerate the gas-liquid reaction inside, and the stirring component is connected to the reaction tank.

[0006] In the above technical solution, further, the stirring assembly includes a motor fixedly connected to the top of the reaction tank through a mounting base, the output end of the motor is fixedly connected to a rotating shaft, the rotating shaft is inserted and rotatably connected to the inside of the reaction tank, the bottom end of the rotating shaft is fixedly connected to three stirring blades through a fixed block, the outer wall of the rotating shaft is fixedly connected to spiral blades, and the outer side of the rotating shaft is provided with a barrier cylinder.

[0007] In the above technical solution, further, the barrier cylinder includes connecting arms fixedly connected to the inner wall of the reaction tank and evenly distributed, one end of the evenly distributed connecting arms away from the inner wall of the reaction tank is fixedly connected with a sleeve, and the sleeve is sleeved on the outside of the spiral blade, and the bottom of the sleeve is fixedly connected with an expansion part.

[0008] In the above technical solution, further, the bottom of the connecting arm is provided with cross-distributed liquid balancing holes and liquid flow holes, and the shape of the liquid balancing holes gradually becomes larger from the side close to the sleeve.

[0009] In the above technical solution, further, the top of the sleeve is provided with evenly distributed adapting holes, and the adapting holes are adapted to the shape of the connecting arm.

[0010] In the above technical solution, further, a liquid blocking plate is fixedly connected to the top of the inner wall of the reaction tank, and the shape of the liquid blocking plate is an inverted cone.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] Through the stirring assembly of the device, driven by a motor, the rotating shaft drives the stirring blades and the spiral blades to rotate synchronously, thereby realizing all-round and high-efficiency stirring of the solution inside the reaction tank, which not only improves the stirring and mixing effect of the solution, but also because the solution spirals up under the guidance of the sleeve, in the solution that falls to the bottom, it promotes full contact between the solution and the injected carbon dioxide gas, thereby significantly improving the efficiency of the gas-liquid reaction.

[0013] By setting up a connecting arm, during the stirring process, through the special concave surface design of the connecting arm and the coordination of the liquid flow hole and the liquid equalization hole, part of the solution can flow to one side along the connecting arm. In the process, the solution falls to the bottom and is fully in contact with the carbon dioxide gas, which further strengthens the gas-liquid reaction and ensures the uniformity and efficiency of the reaction. It plays an important role in improving the mixing efficiency and the degree of gas-liquid reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a device for preparing nano calcium carbonate using ionic liquid proposed in the utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of a device for preparing nano calcium carbonate using ionic liquids proposed in the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of a device for preparing nano calcium carbonate using ionic liquids proposed in the utility model;

[0017] Figure 4This is a schematic diagram of the spiral blade structure of a stirring assembly of a device for preparing nano calcium carbonate using ionic liquids proposed in the utility model;

[0018] Figure 5 The utility model discloses a schematic diagram of the connecting arm structure of a device for preparing nano calcium carbonate using ionic liquid.

[0019] In the figure: 1. reaction tank; 2. discharge port; 3. support leg; 4. feed port; 5. air inlet; 6. motor; 7. rotating shaft; 8. liquid blocking plate; 9. connecting arm; 10. sleeve; 11. extension part; 12. stirring blade; 13. spiral blade; 14. adapter hole; 15. liquid equalization hole; 16. liquid flow hole. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figure 1 A device for preparing nano-calcium carbonate using ionic liquid is shown, comprising a reaction tank 1, three supporting legs 3 are fixedly connected to the bottom of the reaction tank 1, a discharge port 2 is fixedly connected to the bottom of the reaction tank 1, and the discharge port 2 is located between the three supporting legs 3, a feed port 4 is connected to the top of the reaction tank 1, an air inlet 5 is connected to the top of the reaction tank 1, and the air inlet 5 is located on one side of the feed port 4. The advantage of such an arrangement is that the reaction tank 1 is the main part of the utility model, and the interior is used to hold and react the solution, and the bottom thereof has three supporting legs 3 to ensure the stability of the reaction tank 1. By arranging the air inlet 5 and the feed port 4, the interior of 1 can have gas and liquid at the same time to support the progress of the gas-liquid reaction.

[0022] like Figure 1-Figure 5As shown, a stirring assembly is arranged inside the reaction tank 1, and the stirring assembly is used to stir the solution inside the reaction tank 1 and accelerate the gas-liquid reaction inside. The stirring assembly is connected to the reaction tank 1, and the stirring assembly includes a motor 6 fixedly connected to the top of the reaction tank 1 through a mounting seat, and the output end of the motor 6 is fixedly connected to a rotating shaft 7, and the rotating shaft 7 is inserted and rotatably connected to the inside of the reaction tank 1, and the bottom end of the rotating shaft 7 is fixedly connected to three stirring blades 12 through a fixing block, and the outer wall of the rotating shaft 7 is fixedly connected to a spiral blade 13, and the outer sleeve of the rotating shaft 7 is provided with There is a barrier cylinder, which includes a connection arm 9 fixedly connected to the inner wall of the reaction tank 1 and evenly distributed. The end of the evenly distributed connection arm 9 away from the inner wall of the reaction tank 1 is fixedly connected with a sleeve 10, and the sleeve 10 is sleeved on the outside of the spiral blade 13. The top of the sleeve 10 is provided with evenly distributed adapter holes 14, and the adapter holes 14 are adapted to the shape of the connection arm 9. The bottom of the sleeve 10 is fixedly connected with an expansion portion 11. The advantage of this arrangement is that the stirring blade 12 and the motor 6 are connected by the rotating shaft 7, and the power from the output end of the motor 6 is transmitted to make the stirring blade 12 The mixing blade 12 and the spiral blade 13 rotate synchronously to stir the solution inside the reaction tank 1 and accelerate the reaction process. The sleeve 10 is provided to cooperate with the stirring blade 12 to form a space that is connected from top to bottom, so that the spiral blade 13 can drive the solution located in the middle of the reaction tank 1 to spiral upward along the channel inside the sleeve 10 to the top of the sleeve 10, and then fall back into the solution at the bottom, thereby further improving the stirring and mixing effect. At the same time, during the process, the solution will also contact with the carbon dioxide gas located at the top of the inner wall of the reaction tank 1, accelerating the gas-liquid reaction and further improving the reaction speed. By setting the connecting arm 9 to fix the sleeve 10, the adapter hole 14 can guide part of the solution brought to the top by the spiral blade 13 to the solution channel formed by the concave surface inside the connecting arm 9, and flow to the inner wall of the reaction tank 1. During the process, the solution will continuously fall to the bottom through the liquid balancing hole 15 and the liquid flow hole 16, thereby improving the uniform mixing effect. By setting the extension part 11, the opening range of the bottom of the sleeve 10 is expanded, so that the spiral blade 13 can drive more solution to the top.

[0023] like Figure 2 , Figure 3 and Figure 5 As shown, the bottom of the connecting arm 9 is provided with cross-distributed liquid balancing holes 15 and liquid flow holes 16, and the liquid balancing holes 15 gradually become larger in shape from the side close to the sleeve 10. The advantage of this arrangement is that the liquid flow holes 16 gradually become larger from the side close to the sleeve 10, reducing the loss of solution from the part close to the sleeve 10, ensuring that enough solution can flow smoothly to the side close to the inner wall of the reaction tank 1, so that the solution will fall to the bottom more comprehensively and evenly and be fully mixed with the solution.

[0024] like Figure 2As shown, a liquid blocking plate 8 is fixedly connected to the top of the inner wall of the reaction tank 1. The shape of the liquid blocking plate 8 is an inverted cone. The advantage of this arrangement is that the liquid blocking plate 8 can effectively prevent liquid splashing and will not affect the reaction process by re-introducing solution or gas through other inlets.

[0025] Working principle: Before using the device, the user first checks the device to confirm that the device is intact and has no damage. The user first pours the pre-configured ion solution into the interior of the reaction tank 1 through the feed port 4, and then injects carbon dioxide into the interior of the reaction tank 1 through the air inlet 5. Then the user starts the motor 6 through the controller to drive the rotating shaft 7 to drive the stirring blade 12 and the spiral blade 13 to rotate synchronously to stir the solution inside the reaction tank 1. Since the sleeve 10 surrounds the outside of the spiral blade 13, a space open up and down is formed. The solution located at the center of the reaction tank 1 is driven by the spiral blade 13 and will spiral up to the top along the sleeve 10. A part of the solution will flow along the concave surface of the connecting arm 9 to the inner wall side of the reaction tank 1. During the process, the solution will fall to the bottom from the concave surface of the connecting arm 9 through the liquid flow hole 16 and the liquid equalization hole 15. During the process, it will contact with the carbon dioxide gas located at the top of the inner wall of the reaction tank 1, which improves the stirring and mixing effect and accelerates the gas-liquid reaction.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for preparing nano calcium carbonate using ionic liquid, comprising a reaction tank (1), characterized in that: The bottom of the reaction tank (1) is fixedly connected to three supporting legs (3), the bottom of the reaction tank (1) is fixedly connected to a discharge port (2), and the discharge port (2) is located between the three supporting legs (3), the top of the reaction tank (1) is connected to a feed port (4), the top of the reaction tank (1) is connected to an air inlet (5), and the air inlet (5) is located on one side of the feed port (4); The reaction tank (1) is provided with a stirring component inside. The stirring component is used to stir the solution inside the reaction tank (1) and accelerate the gas-liquid reaction inside. The stirring component is connected to the reaction tank (1).

2. A device for preparing nano calcium carbonate using ionic liquid according to claim 1, characterized in that, The stirring assembly comprises a motor (6) fixedly connected to the top of the reaction tank (1) via a mounting seat, the output end of the motor (6) is fixedly connected to a rotating shaft (7), the rotating shaft (7) is inserted and rotatably connected inside the reaction tank (1), the bottom end of the rotating shaft (7) is fixedly connected to three stirring blades (12) via a fixing block, the outer wall of the rotating shaft (7) is fixedly connected to a spiral blade (13), and the outer part of the rotating shaft (7) is sleeved with a barrier cylinder.

3. A device for preparing nano calcium carbonate using ionic liquid according to claim 2, characterized in that, The barrier cylinder comprises connecting arms (9) fixedly connected to the inner wall of the reaction tank (1) and evenly distributed, one end of the evenly distributed connecting arms (9) away from the inner wall of the reaction tank (1) is fixedly connected to a sleeve (10), and the sleeve (10) is sleeved on the outside of the spiral blade (13), and the bottom of the sleeve (10) is fixedly connected to an expansion portion (11).

4. A device for preparing nano calcium carbonate using ionic liquid according to claim 3, characterized in that: The bottom of the connecting arm (9) is provided with cross-distributed liquid balancing holes (15) and liquid flow holes (16), and the shape of the liquid balancing holes (15) gradually becomes larger from the side close to the sleeve (10).

5. A device for preparing nano calcium carbonate using ionic liquid according to claim 3, characterized in that: The top of the sleeve (10) is provided with evenly distributed adapting holes (14), and the adapting holes (14) are adapted to the shape of the connecting arm (9).

6. A device for preparing nano calcium carbonate using ionic liquid according to claim 1, characterized in that: A liquid blocking plate (8) is fixedly connected to the top of the inner wall of the reaction tank (1), and the shape of the liquid blocking plate (8) is an inverted cone.

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