Lithium silicate solution concentration device

Abstract

The utility model discloses a lithium silicate solution concentration device, which relates to the technical field of lithium silicate solution concentration, and comprises a reaction tank, the peripheral side of the reaction tank is fixedly connected with supporting legs, the top and the bottom of the reaction tank are respectively provided with a feed port and a discharge port, and the feed port and the discharge port are both fixedly connected with valves. The top of the reaction tank is fixedly connected with a motor, a rotating rod is arranged in the reaction tank, the top of the rotating rod extends to the outer side of the reaction tank and is fixedly connected with the output end of the motor, and the gas inlet pipe and the exhaust pipe are arranged, so that high-purity argon is input into the reaction tank through the gas inlet pipe, and air in the reaction tank is exhausted through the exhaust pipe; the concentration of carbon dioxide in the reaction tank is reduced, so that the carbon dioxide is prevented from entering a solution and reacting in the concentration process, the air pressure sensor is used for detecting the air pressure in the reaction tank, and high-purity argon is automatically input into the reaction tank through the air pump to ensure that the high-purity argon is sufficient.

Description

Technical Field

[0001] This utility model relates to the field of lithium silicate solution concentration technology, specifically a lithium silicate solution concentration device. Background Technology

[0002] Lithium silicate is a compound formed by the reaction of lithium hydroxide and silicic acid. It is a colorless, odorless, transparent liquid with weak alkalinity. It is commonly used in glass systems, molten salt systems, and high-temperature ceramic glazes. It is also used as an anti-rust coating for steel and other surfaces, or as an adhesive in inorganic zinc-rich coatings and high-grade welding electrodes.

[0003] Primary lithium silicate products are mostly dilute solutions with a concentration of 5%, while the lithium silicate solutions used in the production of glass, ceramic glazes, and other products are mostly concentrated solutions with a concentration of 20% or higher. Therefore, it is necessary to concentrate the dilute lithium silicate solutions, which is generally done by heating the dilute solutions. However, lithium silicate absorbs carbon dioxide at high temperatures, so it is necessary to remove the carbon dioxide from the equipment. However, the existing equipment does not completely remove carbon dioxide during use, leaving carbon dioxide residue in the equipment. This results in the concentrated lithium silicate solution containing some lithium carbonate, a product of the reaction between lithium silicate and carbon dioxide, leading to a decrease in product quality. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology in that the carbon dioxide removal is incomplete, and to provide a lithium silicate solution concentration device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lithium silicate solution concentration device, comprising a reaction tank, with legs fixedly connected to the periphery of the reaction tank, an inlet and an outlet respectively opened at the top and bottom of the reaction tank, and valves fixedly connected to both the inlet and outlet, a motor fixedly connected to the top of the reaction tank, a rotating rod provided inside the reaction tank, the top of the rotating rod extending to the outside of the reaction tank and fixedly connected to the output end of the motor, an electric heating tube provided inside the reaction tank, a stirring rod fixedly connected to the rotating rod, an air inlet pipe and an air outlet pipe fixedly connected to the reaction tank, and air valves installed on both the air inlet pipe and the air outlet pipe, a pressure sensor fixedly connected to the inner wall of the reaction tank, and an air pump fixedly connected to the top of the air inlet pipe.

[0006] As described above, there are several stirring rods, which are distributed laterally around the rotating rod and arranged in a spiral shape from top to bottom.

[0007] As described above, the reaction vessel is cylindrical in shape and hemispherical at the bottom. The discharge port is located at the lowest point of the bottom of the reaction vessel. A cavity is provided at the bottom of the reaction vessel, and the heating tubes are located inside the cavity. Several heating tubes are provided and evenly distributed around the discharge port.

[0008] As described above, two L-shaped scrapers are fixedly connected to the rotating rod, which are arranged symmetrically on the left and right. An arc-shaped plate is fixedly connected to the bottom of the two scrapers, and both the scrapers and the arc-shaped plate are in contact with the inner wall of the reaction vessel.

[0009] As described above, the exhaust pipe penetrates the side wall of the reaction tank, passes through the inside of the reaction tank, and the part of the exhaust pipe located inside the reaction tank is arranged in a spiral coil shape with the outlet end located at the bottom. The exhaust pipe is located above the scraper and the stirring rod, and a check valve is fixedly connected to the end of the exhaust pipe.

[0010] As described above, a circulation pump is fixedly connected to the top of the reaction tank, a circulation pipe is fixedly connected to the outer wall of the reaction tank, one end of the circulation pipe passes through the side wall of the reaction tank, and the other end is fixedly connected to the circulation pump. A spray pipe is fixedly connected to the inner side of the reaction tank.

[0011] As described above, the spray pipe is arranged in a ring shape, with several evenly distributed nozzles fixedly connected to the bottom of the spray pipe, and the spray pipe is located above the exhaust pipe and fixedly connected to the top of the reaction tank.

[0012] Compared with existing technologies, this lithium silicate solution concentration device has the following advantages:

[0013] I. This utility model, by setting up an air inlet pipe and an exhaust pipe, introduces high-purity argon gas into the reaction vessel through the air inlet pipe and exhausts the air in the reaction vessel through the exhaust pipe, thereby reducing the concentration of carbon dioxide in the reaction vessel and preventing carbon dioxide from entering the solution and reacting during the concentration process. A pressure sensor is used to detect the pressure in the reaction vessel, and a gas pump automatically introduces high-purity argon gas into the reaction vessel to ensure sufficient high-purity argon gas, thereby controlling the carbon dioxide concentration.

[0014] II. This utility model uses a circulating pump and circulating pipe to pump the solution into a spray pipe above the inside of the reaction tank and spray it out. At the same time, an exhaust pipe passes through the inside of the reaction tank and spirals through the bottom of the spray pipe. After the steam rises, it enters the exhaust pipe. Meanwhile, the solution sprayed from the spray pipe falls onto the exhaust pipe. The heat of the steam is transferred to the solution through the exhaust pipe. The condensate formed after the steam heat exchange is located in the exhaust pipe and slides downward to the outlet end of the exhaust pipe under its own gravity, thereby recovering heat, facilitating solution concentration, and reducing heating loss.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the stirring rod structure of this utility model.

[0019] In the diagram: 1. Reaction vessel; 2. Feed inlet; 3. Discharge outlet; 4. Valve; 5. Air inlet pipe; 6. Motor; 7. Circulation pump; 8. Exhaust pipe; 9. Circulation pipe; 10. Air pump; 11. Spray pipe; 12. Air pressure sensor; 13. Stirring rod; 14. Rotating rod; 15. Heating element; 16. Scraper; 17. Arc plate. Detailed Implementation

[0020] 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.

[0021] like Figure 1-3 As shown, this utility model provides a technical solution for a lithium silicate solution concentration device: A lithium silicate solution concentration device includes a reaction tank 1, with support legs fixedly connected to the periphery of the reaction tank 1. The top and bottom of the reaction tank 1 are respectively provided with an inlet 2 and an outlet 3, and valves 4 are fixedly connected to both the inlet 2 and the outlet 3. A motor 6 is fixedly connected to the top of the reaction tank 1. A rotating rod 14 is provided inside the reaction tank 1, with the top of the rotating rod 14 extending to the outside of the reaction tank 1 and fixedly connected to the output end of the motor 6. An electric heating tube 15 is provided inside the reaction tank 1. A stirring rod 13 is fixedly connected to the rotating rod 14. An air inlet pipe 5 and an exhaust pipe 8 are fixedly connected to the reaction tank 1, and air valves are installed on both the air inlet pipe 5 and the exhaust pipe 8. A pressure sensor 12 is fixedly connected to the inner wall of the reaction tank 1, and an air pump 10 is fixedly connected to the top of the air inlet pipe 5.

[0022] According to the overall structure of the device, the solution is poured into the reaction tank 1 through the feed port 2, the valve 4 is closed, the electric heating tube 15 is started, the electric heating tube 15 heats the solution to concentrate it, and the motor 6 is started. The motor 6 drives the rotating rod 14 to rotate and drives the stirring rod 13 to stir the solution to accelerate the concentration. The gas inlet pipe 5 is connected to the external high-purity argon equipment, and high-purity argon is introduced into the reaction tank 1 through the gas inlet pipe 5 to discharge the air in the reaction tank 1 and reduce the carbon dioxide concentration, thereby preventing carbon dioxide from entering the solution during the concentration process. At the same time, the gas pressure sensor 12 detects the gas pressure in the reaction tank 1 to maintain a sufficient supply of high-purity argon in the reaction tank 1. The water vapor generated during concentration is discharged from the reaction tank 1 through the exhaust pipe 8. After the concentration is completed, the concentrated solution is discharged from the reaction tank 1 through the discharge port 3.

[0023] like Figure 3 As shown, there are several stirring rods 13, which are distributed laterally around the rotating rod 14 and are spirally distributed from top to bottom.

[0024] The stirring effect of the solution is improved by using several stirring rods 13. The stirring rods 13 are arranged in a spiral shape, so that the stirring rods 13 can stir the solution at both the upper and lower levels at the same time, thereby making the stirring thorough.

[0025] like Figure 2 As shown, the reaction vessel 1 is cylindrical in shape and hemispherical at the bottom. The discharge port 3 is located at the lowest point of the bottom of the reaction vessel 1. A cavity is provided at the bottom of the reaction vessel 1, and the electric heating tube 15 is located in the cavity. There are several electric heating tubes 15, which are evenly distributed around the discharge port 3.

[0026] The hemispherical surface increases the heating surface of the solution, thereby increasing the heat transfer rate of the heating tube 15 and improving the heating efficiency of the solution, thus improving the concentration efficiency. The hemispherical bottom surface facilitates the discharge of the solution after processing. The solution is uniformly heated by several surrounding heating tubes 15.

[0027] like Figure 3 As shown, two L-shaped scrapers 16 are fixedly connected to the rotating rod 14, which are arranged symmetrically on the left and right. An arc-shaped plate 17 is fixedly connected to the bottom of the two scrapers 16. Both the scrapers 16 and the arc-shaped plate 17 are in contact with the inner wall of the reaction vessel 1.

[0028] The rotating rod 14 drives the scraper 16 to rotate. The lithium silicate solution is viscous and will adhere to the inner wall of the reaction vessel 1. The rotating scraper 16 can scrape off the solution on the inner wall of the reaction vessel 1 to prevent solution residue. The arc plate 17 can fit with the bottom of the reaction vessel 1 to avoid dead corners.

[0029] like Figure 2As shown, the exhaust pipe 8 penetrates the side wall of the reaction tank 1 and passes through the inside of the reaction tank 1. The part of the exhaust pipe 8 located inside the reaction tank 1 is arranged in a spiral coil shape with the exhaust port end located at the bottom. The exhaust pipe 8 is located above the scraper 16 and the stirring rod 13. A check valve is fixedly connected to the end of the exhaust pipe 8. A circulation pump 7 is fixedly connected to the top of the reaction tank 1. A circulation pipe 9 is fixedly connected to the outer wall of the reaction tank 1. One end of the circulation pipe 9 penetrates the side wall of the reaction tank 1, and the other end is fixedly connected to the circulation pump 7. A spray pipe 11 is fixedly connected to the inside of the reaction tank 1. The spray pipe 11 is arranged in a ring shape. Several evenly distributed nozzles are fixedly connected to the bottom of the spray pipe 11. The spray pipe 11 is located above the exhaust pipe 8 and is fixedly connected to the top of the reaction tank 1.

[0030] The solution is pumped from below into the spray pipe 11 via the circulation pump 7 and circulation pipe 9, and then sprayed out through the spray pipe 11, thus circulating the solution. Combined with the stirring rod 13, this accelerates the concentration. The solution is sprayed out from the spray pipe 11, and the spray range covers the exhaust pipe 8 through the annular spray pipe 11. At the same time, the exhaust pipe 8 is coiled, so that the solution can fully contact the exhaust pipe 8, thereby fully absorbing the heat of the steam in the exhaust pipe 8 and heating the sprayed solution. This allows the heat of the steam to be recovered and utilized. A check valve prevents the steam from flowing back into the reaction tank 1.

[0031] Working principle: Connect the device to an external power source and connect the inlet pipe 5 to an external high-purity argon gas equipment. Pour the solution into the inlet 2, close valve 4, and start the heating element 15. The heating element 15 heats and concentrates the solution. Simultaneously, start the motor 6, which drives the rotating rod 14 to rotate and stirs the stirring rod 13 to accelerate concentration. The upper and lower spiral distribution of the stirring rod 13 ensures thorough stirring of the solution. Simultaneously, the circulating pump 7, circulation pipe 9, and spray pipe 11 allow the solution to circulate vertically, improving the stirring effect and accelerating concentration efficiency. Furthermore, the rotation of the rotating rod 14 drives the scraper 16 to scrape off the solution adhering to the inner wall of the reaction vessel 1. High-purity argon gas is introduced into the reaction vessel 1 through the gas pipe 5, and the air inside the reaction vessel 1 is discharged to reduce the carbon dioxide concentration, thereby preventing carbon dioxide from entering the solution during the concentration process. At the same time, the gas pressure sensor 12 detects the gas pressure inside the reaction vessel 1, and high-purity argon gas is automatically injected through the gas pump 10 when the gas pressure changes, thereby maintaining a sufficient supply of high-purity argon gas in the reaction vessel 1. The water vapor generated during concentration is discharged from the reaction vessel 1 through the exhaust pipe 8. By making the exhaust pipe 8 pass through the reaction vessel 1 and form a coil, the solution sprayed by the spray pipe 11 is in full contact with the exhaust pipe 8, thereby recovering and utilizing the heat in the steam and reducing heating loss. After the concentration is completed, the concentrated solution is discharged from the reaction vessel 1 through the discharge port 3.

[0032] 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 these 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 lithium silicate solution concentration apparatus, comprising a reaction vessel (1), characterized in that: The reaction vessel (1) is fixedly connected to the periphery with support legs. The top and bottom of the reaction vessel (1) are respectively provided with a feed inlet (2) and a discharge outlet (3), and valves (4) are fixedly connected to both the feed inlet (2) and the discharge outlet (3). A motor (6) is fixedly connected to the top of the reaction vessel (1). A rotating rod (14) is provided inside the reaction vessel (1). The top of the rotating rod (14) extends to the outside of the reaction vessel (1) and is fixedly connected to the output end of the motor (6). An electric heating tube (15) is provided inside the reaction vessel (1). A stirring rod (13) is fixedly connected to the rotating rod (14). An air inlet pipe (5) and an exhaust pipe (8) are fixedly connected to the reaction vessel (1), and air valves are installed on both the air inlet pipe (5) and the exhaust pipe (8). A pressure sensor (12) is fixedly connected to the inner wall of the reaction vessel (1). An air pump (10) is fixedly connected to the top of the air inlet pipe (5).

2. The lithium silicate solution concentration device according to claim 1, characterized in that: The stirring rod (13) is provided in several parts, and the stirring rod (13) is distributed laterally around the rotating rod (14) in a spiral shape from top to bottom.

3. The lithium silicate solution concentration device according to claim 1, characterized in that: The reaction vessel (1) is cylindrical in shape and hemispherical at the bottom. The discharge port (3) is located at the lowest point of the bottom of the reaction vessel (1). A cavity is provided at the bottom of the reaction vessel (1). The heating tube (15) is located in the cavity and there are several heating tubes (15) evenly distributed around the discharge port (3).

4. The lithium silicate solution concentration device according to claim 1, characterized in that: Two L-shaped scrapers (16) are fixedly connected to the rotating rod (14) and are arranged symmetrically on the left and right. An arc plate (17) is fixedly connected to the bottom of the two scrapers (16). Both the scrapers (16) and the arc plate (17) are in contact with the inner wall of the reaction vessel (1).

5. The lithium silicate solution concentration device according to claim 1, characterized in that: The exhaust pipe (8) penetrates the side wall of the reaction tank (1) and passes through the inside of the reaction tank (1). The part of the exhaust pipe (8) located inside the reaction tank (1) is arranged in a spiral coil shape with the outlet end located at the bottom. The exhaust pipe (8) is located above the scraper (16) and the stirring rod (13). A check valve is fixedly connected to the end of the exhaust pipe (8).

6. The lithium silicate solution concentration device according to claim 1, characterized in that: A circulation pump (7) is fixedly connected to the top of the reaction tank (1), and a circulation pipe (9) is fixedly connected to the outer wall of the reaction tank (1). One end of the circulation pipe (9) passes through the side wall of the reaction tank (1), and the other end is fixedly connected to the circulation pump (7). A spray pipe (11) is fixedly connected to the inner side of the reaction tank (1).

7. A lithium silicate solution concentration device according to claim 6, characterized in that: The spray pipe (11) is arranged in a ring shape. Several evenly distributed nozzles are fixedly connected to the bottom of the spray pipe (11), and the spray pipe (11) is located above the exhaust pipe (8) and fixedly connected to the top of the reaction tank (1).

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