Purification device for high-purity hafnium oxide production

Abstract

The utility model provides a purification device for producing high-purity hafnium oxide, which belongs to the technical field of chemical purification devices and comprises an extraction tank, a base, a tank cover, an exhaust pipe, a drain pipe, a water storage pipe, a water storage box, a connecting pipe, a partition plate, a reaction barrel, a water storage barrel, a communicating pipe and a water outlet pipe. Due to the fact that the density of water is lower than that of a liquid mixture of the industrial waste liquid and the extraction agent, water is injected into the reaction barrel after the extraction reaction is completed, water can float above the liquid mixture, water in the reaction barrel and water in the water storage barrel are located at the same liquid level according to the liquid level difference principle, water can enter the water storage barrel through the communicating pipe, and therefore the extraction reaction is completed. The liquid mixture is isolated in the reaction barrel by the filter screen in the communicating pipe, and water in the liquid mixture in the reaction barrel is gradually discharged, so that the liquid mixture generated by extraction is separated from the water, the separation speed is greatly increased, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical purification devices, in particular to a purification device for producing high-purity hafnium oxide. Background Art

[0002] Hafnium oxide is the raw material for producing metallic hafnium and hafnium alloys, and is used as refractory materials, anti-radioactive coatings and catalysts;

[0003] At present, the more mature methods for hafnium purification include molten salt distillation and solvent extraction separation. In the solvent extraction method, the organic phase and the aqueous phase are first mixed with each other. After the substance to be separated from the aqueous phase enters the organic phase, the two phases are separated by the difference in mass density of the two phases, thereby achieving separation or purification of the liquid mixture.

[0004] It has been found in actual use that the existing hafnium oxide purification device has the following shortcomings:

[0005] After the extraction reaction is completed, a separation operation is required to separate the generated organic phase from the aqueous phase. Generally, a separating funnel or a centrifuge is used for separation. However, the above two operations require the generated organic phase and aqueous phase to be taken out and then separated. This not only leads to a slow separation speed, but also increases the transportation cost and requires the purchase of other equipment, resulting in a high production cost.

[0006] In addition, the extractant is an organophosphate, which is slightly toxic. When the organic phase and the aqueous phase are mixed, the gas generated by the volatilization of the extractant inside during transportation or purification is likely to evaporate directly and escape when the lid is opened, posing a potential risk to the environment and human health.

[0007] Therefore, the present application provides a purification device for producing high-purity hafnium oxide to meet the demand. Utility Model Content

[0008] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes a purification device for producing high-purity hafnium oxide.

[0009] The technical problem to be solved by the utility model is to provide a purification device for producing high-purity hafnium oxide to solve the problems of the existing purification device for producing high-purity hafnium oxide.

[0010] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0011] A purification device for producing high-purity hafnium oxide comprises: an extraction tank, a base, a tank cover, an exhaust pipe, a drain pipe, a water storage pipe, a water storage box, a connecting pipe, a partition, a reaction barrel, a water storage barrel, a connecting pipe and a water outlet pipe, wherein the base is installed at the bottom of the extraction tank, the tank cover is installed at the top of the extraction tank, the exhaust pipe is installed on the surface of the tank cover, the drain pipe is installed at the upper end of the tank cover, the water storage pipe is installed at one end of the drain pipe, the water storage box is installed at the top of the water storage pipe, the connecting pipe is installed at the other end of the water storage pipe, the partition is installed inside the extraction tank, the reaction barrel is installed on one side of the extraction tank, the water storage barrel is installed inside the extraction tank on the other side of the partition, the connecting pipe is installed on one side of the water storage barrel, and the water outlet pipe is installed on the other side of the water barrel.

[0012] Preferably, the water storage pipe is in a "U" shape and is made of stainless steel.

[0013] Preferably, the water outlet of the drain pipe extends transversely to the outer end of the side of the tank cover, and the water inlet of the drain pipe is connected to the bottom of the water storage pipe.

[0014] Preferably, the connecting pipe is a rubber hose, and the connecting pipe is connected downwardly to the exhaust pipe.

[0015] Preferably, the exhaust pipe is connected to the extraction tank, and the exhaust pipe is located at the top of the reaction barrel.

[0016] Preferably, the volume of the reaction barrel is larger than that of the water storage barrel, and the reaction barrel is connected to the water storage barrel through a connecting pipe, and a filter screen is installed inside the connecting pipe.

[0017] Preferably, the connecting pipe is located at the bottom and middle section of the reaction barrel and the water storage barrel, and the water outlet pipe penetrates the water storage barrel and the extraction tank and extends outward to the outer end of the extraction tank.

[0018] 1. A reaction barrel and a water storage barrel are arranged inside the extraction tank. Since the density of water is lower than the density of the liquid mixture of the industrial waste liquid and the extractant, water is injected into the extraction tank after the extraction reaction is completed, so the water will float on the liquid mixture. When the liquid mixture is generated, it gradually accumulates upwards. When the water submerges the bottom of the connecting pipe, the water will enter the water storage barrel through the connecting pipe. The filter net inside the connecting pipe isolates the liquid mixture inside the reaction barrel. Through the principle of liquid level difference, the water inside the reaction barrel will be at the same liquid level as the water inside the water storage barrel. The water inside the water storage barrel gradually rises and is continuously discharged outward through the water outlet pipe, while the water above the liquid mixture inside the reaction barrel gradually enters the water storage barrel through the connecting pipe and is continuously discharged, thereby separating the liquid mixture generated by the extraction from the water, greatly improving the separation speed and reducing the production cost.

[0019] 2. The volatilized gas from the extraction reaction in the reaction barrel is discharged upward from the exhaust pipe and injected into the water storage pipe through the connecting pipe connected to the exhaust pipe. The "U"-shaped water storage pipe forms a water seal structure. The water storage box on the top of the water storage pipe injects water into the water storage pipe, and the overflowing volatile gas is blocked by the water storage pipe, so that the volatilized gas can be absorbed by water, thereby preventing the gas gathered after opening the cover after extraction from volatilizing directly to the outside, making the extraction safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the specific connection structure of the water storage pipe of the utility model;

[0024] Figure 4 It is a schematic diagram of the connection structure of the reaction barrel and the water storage barrel of the utility model.

[0025] [Reference Signs]

[0026] Extraction tank; 2-base; 3-tank cover; 4-exhaust pipe; 5-drain pipe; 6-water storage pipe; 7-water storage box; 8-connecting pipe; 9-partition; 10-reaction barrel; 11-water storage barrel; 12-connecting pipe; 13-water outlet pipe.

[0027] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4A purification device for producing high-purity hafnium oxide is shown in an embodiment of the utility model, comprising: an extraction tank 1, a base 2, a tank cover 3, an exhaust pipe 4, a drain pipe 5, a water storage pipe 6, a water storage box 7, a connecting pipe 8, a partition 9, a reaction barrel 10, a water storage barrel 11, a connecting pipe 12 and a water outlet pipe 13. The base 2 is installed at the bottom of the extraction tank 1, the tank cover 3 is installed at the top of the extraction tank 1, the exhaust pipe 4 is installed on the surface of the tank cover 3, the drain pipe 5 is installed at the upper end of the tank cover 3, the water storage pipe 6 is installed at one end of the drain pipe 5, the water storage box 7 is installed on the top of the water storage pipe 6, and the connecting pipe 8 is installed at the other end of the water storage pipe 6, the partition 9 is installed inside the extraction tank 1, the reaction barrel 10 is installed on one side of the extraction tank 1, the water storage barrel 11 is installed on the other side of the partition 9 inside the extraction tank 1, the connecting pipe 12 is installed on one side of the water storage barrel 11, and the water outlet pipe 13 is installed on the other side of the bucket 11.

[0029] In the present embodiment, the water storage tube 6 is in a "U" shape and is made of stainless steel. The "U"-shaped water storage tube 6 forms a water seal structure. The water storage box 7 on the top of the water storage tube 6 injects water into the water storage tube 6. The overflowing volatile gas is blocked by the water storage tube 6 so that the volatilized gas can be absorbed by water, thereby preventing the gas gathered after the cover is opened after extraction from volatilizing directly to the outside, making the extraction safer.

[0030] In this embodiment, the water outlet of the drain pipe 5 extends laterally to the outer end of the side of the tank cover 3, and the water inlet of the drain pipe 5 is connected to the bottom of the water storage pipe 6, so that the water diluted and absorbed by the volatile gas in the water storage pipe 6 can be discharged to the outside through the drain pipe 5.

[0031] In this embodiment, the connecting pipe 8 is a rubber hose, and the connecting pipe 8 is connected to the exhaust pipe 4 downward. The connecting pipe 8 made of rubber hose is more flexible and can be plugged in and out during use, so it is convenient to connect to the exhaust pipe 4.

[0032] In this embodiment, the exhaust pipe 4 is connected to the extraction tank 1 , and the exhaust pipe 4 is located at the top of the reaction barrel 10 , and the gas volatilized by the extraction reaction in the reaction barrel 10 is discharged upward from the exhaust pipe 4 .

[0033] In this embodiment, the volume of the reaction barrel 10 is larger than that of the water storage barrel 11, and the reaction barrel 10 is connected to the water storage barrel 11 through a connecting pipe 12. A filter screen is installed inside the connecting pipe 12 to ensure that the capacity of the organic phase and the aqueous phase in the reaction barrel 10 is greater than the capacity of the water in the water storage barrel 11.

[0034] In this embodiment, the connecting pipe 12 is located at the bottom and middle section of the reaction barrel 10 and the water storage barrel 11, and the water outlet pipe 13 penetrates the water storage barrel 11 and the extraction tank 1 and extends outward to the outer end of the extraction tank 1. Since the density of water is lower than the density of the liquid mixture with the extractant in the industrial waste liquid, water is injected into it after the extraction reaction is completed, so the water will float on the liquid mixture. When the liquid mixture is generated, it gradually accumulates upward. When the water submerges the bottom of the connecting pipe 12, the water will enter the water storage barrel 11 through the connecting pipe 12. The filter net inside the connecting pipe 12 isolates the liquid mixture in the reaction barrel 10, and through the principle of liquid level difference, the water inside the reaction barrel 10 will be at the same liquid level as the water inside the water storage barrel 11. The water inside the water storage barrel 11 gradually rises and is continuously discharged outward through the water outlet pipe 13, and the water above the liquid mixture inside the reaction barrel 10 will gradually enter the water storage barrel 11 through the connecting pipe 12 and be continuously discharged, thereby separating the liquid mixture and water generated by the extraction, greatly improving the separation speed and reducing the production cost.

Claims

1. A purification device for producing high-purity hafnium oxide, characterized in that: include: An extraction tank (1), a base (2), a tank cover (3), an exhaust pipe (4), a drain pipe (5), a water storage pipe (6), a water storage box (7), a connecting pipe (8), a partition (9), a reaction barrel (10), a water storage barrel (11), a connecting pipe (12) and a water outlet pipe (13), wherein the bottom of the extraction tank (1) is provided with a base (2), the top of the extraction tank (1) is provided with a tank cover (3), the surface of the tank cover (3) is provided with an exhaust pipe (4), the upper end of the tank cover (3) is provided with a drain pipe (5), and the drain pipe (5) A water storage pipe (6) is installed at one end of the water storage pipe (6), a water storage box (7) is installed on the top of the water storage pipe (6), a connecting pipe (8) is installed at the other end of the water storage pipe (6), a partition (9) is installed inside the extraction tank (1), a reaction barrel (10) is installed on one side of the extraction tank (1), a water storage barrel (11) is installed on the other side of the partition (9) inside the extraction tank (1), a connecting pipe (12) is installed on one side of the water storage barrel (11), and a water outlet pipe (13) is installed on the other side of the water barrel (11).

2. The purification device for producing high-purity hafnium oxide according to claim 1, characterized in that: The water storage pipe (6) is in a "U" shape and is made of stainless steel.

3. The purification device for producing high-purity hafnium oxide according to claim 1, characterized in that: The water outlet of the drainage pipe (5) extends transversely to the outer end of the side of the tank cover (3), and the water inlet of the drainage pipe (5) is connected to the bottom of the water storage pipe (6).

4. The purification device for producing high-purity hafnium oxide according to claim 1, characterized in that: The connecting pipe (8) is a rubber hose, and the connecting pipe (8) is connected downwardly to the exhaust pipe (4).

5. The purification device for producing high-purity hafnium oxide according to claim 1, characterized in that: The exhaust pipe (4) is connected to the extraction tank (1), and the exhaust pipe (4) is located at the top of the reaction barrel (10).

6. The purification device for producing high-purity hafnium oxide according to claim 1, characterized in that: The volume of the reaction barrel (10) is larger than that of the water storage barrel (11), and the reaction barrel (10) is connected to the water storage barrel (11) via a connecting pipe (12), and a filter screen is installed inside the connecting pipe (12).

7. The purification device for producing high-purity hafnium oxide according to claim 1, characterized in that: The connecting pipe (12) is located at the bottom and middle section of the reaction barrel (10) and the water storage barrel (11), and the water outlet pipe (13) penetrates the water storage barrel (11) and the extraction tank (1) and extends outward to the outer end of the extraction tank (1).

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