Injection system suitable for potassium fluoride reaction tank

Abstract

The utility model relates to the technical field of potassium fluoride processing equipment, in particular to a blowing system suitable for a potassium fluoride reaction tank, which comprises a reaction tank, an air compressor, a blowing head and a slurry pump, the bottom end of the reaction tank is connected with an inclined pipe, and the air compressor is connected with the middle of the inclined pipe through a first pipeline to form a three-way structure. The slurry pump is connected with the bottom end of the inclined pipe through a second pipeline, a stirring device is mounted in the reaction tank, and a blowing head is mounted on the inner wall of the bottom of the reaction tank. In the blowing system suitable for the potassium fluoride reaction tank, compressed air is blown out along the inner wall of the reaction tank by the blowing head along four different directions, the stirring device is started when the liquid level of the reaction slurry reaches the stirring rod, and the reaction slurry in the reaction tank flows into the reaction tank under the combined action of the middle stirring device and the blowing head. The slurry pump is arranged in the reaction tank, so that slurry at the inner edge, the bottom and the middle of the reaction tank can be uniformly mixed, the reaction in the tank is more stable, the formation of silica gel is reduced, and a slurry pump pipeline can be blown and thoroughly cleaned by controlling the valve.

Description

Technical Field

[0001] The utility model relates to the technical field of potassium fluoride processing equipment, and specifically, to a blowing system applicable to a potassium fluoride reaction tank. Background Art

[0002] Potassium fluoride, as an important industrial fluorinated salt, has an alkaline aqueous solution and the ability to corrode glass and porcelain, so its application range is very wide. Potassium fluoride on the market is mainly divided into two types: ordinary potassium fluoride and highly active potassium fluoride. Ordinary potassium fluoride has a wide range of applications in fields such as glass engraving, food preservation, electroplating, welding flux, and pesticides; while highly active potassium fluoride is mainly used in fields such as medicine, pesticide intermediates, and electrochemistry.

[0003] At present, there are mainly two production processes for potassium fluoride. One is to use hydrofluoric acid to react with potassium hydroxide or potassium carbonate to prepare potassium fluoride, which is also the mainstream potassium fluoride production process on the market. The other production process is to use fluorosilicic acid to produce potassium fluoride, which is mostly adopted by wet-process phosphoric acid production enterprises, and the by-product fluorosilicic acid is the main raw material. In this process, fluorosilicic acid is first prepared into potassium fluorosilicate, and then potassium fluorosilicate is alkali-decomposed in a potassium hydroxide solution to generate potassium fluoride and silicon dioxide. However, in this process, due to factors such as the concentration of the solution and stirring, silica gel is easily formed. The formation of silica gel will cause blockage of the production pipeline and difficulty in cleaning the reaction tank, which not only affects the smooth progress of production but also shortens the service life of the equipment and pipeline. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a blowing system applicable to a potassium fluoride reaction tank to solve the problems that the formation of silica gel causes blockage of the production pipeline and difficulty in cleaning the reaction tank, which not only affects the smooth progress of production but also shortens the service life of the equipment and pipeline as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides a blowing system applicable to a potassium fluoride reaction tank, which includes a reaction tank, an air compressor, a blowing head, and a slurry pump. The bottom end of the reaction tank is connected with an inclined pipe. The air compressor is connected to the middle part of the inclined pipe through a first pipeline to form a tee structure. The slurry pump is connected to the bottom end of the inclined pipe through a second pipeline. A stirring device is installed inside the reaction tank, and a blowing head is installed on the bottom inner wall of the reaction tank. The bottom end of the blowing head is connected to the inclined pipe.

[0006] Preferably, two feeding pipes are connected to the top of the reaction tank, and a liquid level gauge is installed inside the reaction tank.

[0007] Preferably, the stirring device includes a stirring rod, on which stirring blades are installed, and the top end of the stirring rod is driven to rotate by a stirring motor.

[0008] Preferably, the outer shell of the stirring motor is fixed to the top of the reaction tank through a bracket, a positioning sleeve is installed on the inner wall of the top of the reaction tank, and the stirring rod of the stirring device passes through the positioning sleeve.

[0009] Preferably, a first valve is installed above the connection between the inclined pipe and the first pipe, and a second valve is installed below the connection between the inclined pipe and the first pipe.

[0010] Preferably, a third valve is installed on the first pipe.

[0011] Preferably, the bottom of the reaction tank is of an inverted conical structure, the spray head is of an inverted conical structure, a main channel is arranged below the inside of the spray head, four branch channels are obliquely arranged at the top of the main channel, an outlet is arranged at the top of the branch channel, the outlet is oval, the included angle between the branch channels is 90°, and the included angle between the branch channel and the axis of the reaction tank is 45°.

[0012] Preferably, the bottom cone angle of the reaction tank is 22.5°, and the included angle between the first pipe and the inclined pipe is 30 - 45°.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the spray system applicable to the potassium fluoride reaction tank, compressed air is blown out along the inner wall of the reaction tank in four different directions by the spray head. When the liquid level of the reaction slurry reaches the stirring rod, the stirring device is turned on, so that the reaction slurry in the reaction tank is under the combined action of the intermediate stirring device and the spray head, making the slurry at the edge, bottom and middle of the reaction tank mix evenly, making the reaction in the tank more stable, reducing the formation of silica gel, and being able to realize the spraying of the slurry pump pipeline by controlling the valve to achieve thorough cleaning.

[0015] The potassium fluorosilicate and potassium hydroxide solution in the reaction tank can achieve a more stable reaction, the materials are mixed more evenly, and the formation of silica gel is effectively reduced. This improvement not only avoids the problems of silica gel scaling in the reaction tank and pipeline blockage, but also significantly improves the service life and operation stability of the equipment and pipelines, thereby reducing the time and cost of manual cleaning and bringing significant economic benefits to the enterprise. Generally speaking, the application of this spray system greatly optimizes the production process of potassium fluoride and improves the production efficiency and product quality. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 Schematic diagram of the internal structure of the injection head in the present utility model;

[0018] Figure 3 Partial structure schematic diagram of the present utility model;

[0019] The meanings of each label in the figure are as follows:

[0020] 1. Reaction tank; 11. Feeding pipe; 12. First pipeline; 13. Second pipeline; 14. Positioning sleeve; 15. Stirring motor; 151. Bracket; 16. Inclined pipe; 2. Air compressor; 3. Injection head; 31. Main channel; 32. Branch channel; 33. Outlet; 4. Slurry pump; 5. First valve; 6. Second valve; 7. Third valve; 8. Stirring device; 9. Liquid level gauge. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1

[0023] The present utility model provides a spraying system applicable to a potassium fluoride reaction tank, as Figures 1 - 3 shown, including a reaction tank 1, an air compressor 2, an injection head 3 and a slurry pump 4. An inclined pipe 16 is connected to the bottom end of the reaction tank 1. The air compressor 2 is connected to the middle of the inclined pipe 16 through a first pipeline 12 to form a tee structure. The slurry pump 4 is connected to the bottom end of the inclined pipe 16 through a second pipeline 13. A stirring device 8 is installed inside the reaction tank 1. The injection head 3 is installed on the bottom inner wall of the reaction tank 1, and the bottom end of the injection head 3 is connected to the inclined pipe 16. This system organically combines the air compressor 2, the injection head 3 and the slurry pump 4 with the reaction tank 1 to form an efficient and stable reaction environment. The air compressor 2 is connected to the middle of the inclined pipe 16 through the first pipeline 12. The design of this tee structure enables the compressed air to smoothly enter the reaction tank 1 and provides a stable power source for the injection head 3. At the same time, the slurry pump 4 is connected to the bottom end of the inclined pipe 16 through the second pipeline 13, ensuring that the reaction slurry can smoothly enter the reaction tank 1 and be fully mixed with the compressed air.

[0024] The setting of the stirring device 8 further enhances the mixing effect of the materials in the reaction tank 1, enabling the potassium fluorosilicate and potassium hydroxide solution to react more fully and produce a more uniform product. The spray head 3 is installed on the bottom inner wall of the reaction tank 1, and its bottom end is connected to the inclined pipe 16. This design allows the compressed air to be directly blown out along the inner wall of the reaction tank 1, forming a strong stirring and mixing effect, effectively reducing the formation of silica gel.

[0025] In this embodiment, two feeding pipes 11 are connected to the top of the reaction tank 1, and a liquid level gauge 9 is installed inside the reaction tank 1 to monitor the liquid level of the reaction tank 1.

[0026] Specifically, the stirring device 8 includes a stirring rod, on which stirring blades are installed. The top end of the stirring rod is driven to rotate by a stirring motor 15, facilitating the stirring operation of the materials.

[0027] Furthermore, the outer shell of the stirring motor 15 is fixed to the top of the reaction tank 1 through a bracket 151, and a positioning sleeve 14 is installed on the top inner wall of the reaction tank 1. The stirring rod of the stirring device 8 passes through the positioning sleeve 14, ensuring the stable rotation of the stirring rod.

[0028] Furthermore, a first valve 5 is installed above the connection between the inclined pipe 16 and the first pipe 12, and a second valve 6 is installed below the connection between the inclined pipe 16 and the first pipe 12.

[0029] Furthermore, a third valve 7 is installed on the first pipe 12.

[0030] Furthermore, the bottom of the reaction tank 1 is of an inverted conical structure, the spray head 3 is of an inverted conical structure, the inner wall of the reaction tank 1 is of a sandwich structure, and a heating pipe or steam is installed in the sandwich to ensure the reaction temperature in the tank. A main channel 31 is provided below the inside of the spray head 3, four branch channels 32 are obliquely arranged at the top of the main channel 31, an outlet 33 is provided at the top of the branch channels 32, the outlet 33 is oval, the included angle between the branch channels 32 is 90°, and the axial included angle between the branch channels 32 and the reaction tank 1 is 45°, realizing uniform spraying in the reaction tank 1.

[0031] When the spray system applicable to the potassium fluoride reaction tank of the present utility model is in use, first, the inside of the reaction tank 1 is heated and raised in temperature by the jacket, and materials are added simultaneously through the feeding pipes 11. At this time, the first valve 5, the second valve 6, and the third valve 7 are closed, and the air compressor 2 is turned on. When the liquid level in the reaction tank 1 submerges the lower liquid outlet, the third valve 7 is fully opened, and 3 / 4 of the first valve 5 is opened, so that the compressed gas is blown into the reaction tank 1 by the spray head, enabling the reaction material liquid level to fully react even when it does not contact the stirring paddle liquid level; when the reaction material liquid level reaches the stirring device 8 in the reaction tank 1, the stirring device 8 in the reaction tank 1 is turned on, and the third valve 7 and the first valve 5 are fully opened. The slurry in the tank can be uniformly mixed from the upper part, the lower part, and the edge of the reaction tank, making the reaction in the tank stable and reducing the formation of silica gel.

[0032] During the process, to prevent the formation of silica gel, the temperature in reaction tank 1 must be maintained above 80°C. In addition, the use of stirring and spraying designs in the tank can make the material reaction more stable and evenly mixed, avoiding the generation of silica gel, reducing the time and material losses caused by manual cleaning, increasing the operation cycle of the production device, and increasing the yield of potassium fluoride.

[0033] Example 2

[0034] To further optimize the technical solution in Example 1, in this example, the included angle between the inclined pipe 16 at the bottom end of the reaction tank 1 and the first pipeline 12 of the air compressor 2 is set to 30 - 45°, and a curved pipe with a radian is connected at the joint to avoid material congestion at the corner during material feeding. The bottom cone angle of the reaction tank 1 is 22.5°.

[0035] After the reaction, use the spraying system to clean the materials in the production pipeline to reduce pipeline blockage. First, check the first valve 5, the second valve 6, and the third valve 7 to confirm that they are in the closed state. Then, turn on the air compressor 2. When the pressure reaches between 0.5 - 0.7 MPa, open the first valve 5 and the third valve 7, and use the spraying system to clean the pipeline from the third valve 7 to the bottom end of the reaction tank 1; close the first valve 5, open the third valve 7 and the second valve 6, and use the spraying system to clean the materials in the pipeline from the third valve 7 to the slurry pump 4.

[0036] Finally, it should be noted that the stirring motor 15, the air compressor 2, etc. in this example, and the electronic components in the above components are all general standard components or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or through conventional experimental methods. At the idle places of this device, all the above electrical components are respectively connected by wires. The specific connection means should refer to the sequential working order between the electrical components in the above working principle to complete the electrical connection, which are all well-known technologies in the art.

[0037] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A blowing system applicable to a potassium fluoride reaction tank, characterized in that: It includes a reaction tank (1), an air compressor (2), a spray head (3), and a slurry pump (4). The bottom end of the reaction tank (1) is connected to an inclined pipe (16). The air compressor (2) is connected to the middle of the inclined pipe (16) through a first pipe (12) to form a tee structure. The slurry pump (4) is connected to the bottom end of the inclined pipe (16) through a second pipe (13). A stirring device (8) is installed inside the reaction tank (1). A spray head (3) is installed on the bottom inner wall of the reaction tank (1), and the bottom end of the spray head (3) is connected to the inclined pipe (16).

2. The injection system applicable to the potassium fluoride reaction tank according to claim 1, wherein: Two feeding pipes (11) are connected to the top of the reaction tank (1), and a liquid level gauge (9) is installed inside the reaction tank (1).

3. The sparging system applicable to a potassium fluoride reaction tank according to claim 1, characterized in that: The stirring device (8) includes a stirring rod, stirring blades are installed on the stirring rod, and the top end of the stirring rod is driven to rotate by a stirring motor (15).

4. The sparging system applicable to a potassium fluoride reaction tank according to claim 3, characterized in that: The outer shell of the stirring motor (15) is fixed to the top of the reaction tank (1) through a bracket (151). A positioning sleeve (14) is installed on the top inner wall of the reaction tank (1), and the stirring rod of the stirring device (8) passes through the positioning sleeve (14).

5. The sparging system applicable to a potassium fluoride reaction tank according to claim 1, wherein: A first valve (5) is installed above the connection between the inclined pipe (16) and the first pipe (12), and a second valve (6) is installed below the connection between the inclined pipe (16) and the first pipe (12).

6. The injection system applicable to the potassium fluoride reaction tank according to claim 1, characterized in that: A third valve (7) is installed on the first pipe (12).

7. The injection system applicable to the potassium fluoride reaction tank according to claim 1, wherein: The bottom of the reaction tank (1) is of an inverted conical structure, the spray head (3) is of an inverted conical structure. A main channel (31) is arranged below the interior of the spray head (3). Four branch channels (32) are obliquely arranged at the top of the main channel (31). An outlet (33) is arranged at the top of the branch channels (32). The outlet (33) is oval. The included angle between the branch channels (32) is 90°, and the axial included angle between the branch channels (32) and the reaction tank (1) is 45°.

8. The sparging system applicable to the potassium fluoride reaction tank according to claim 7, wherein: The bottom cone angle of the reaction tank (1) is 22.5°, and the included angle between the first pipe (12) and the inclined pipe (16) is 30 - 45°.

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