A high-efficiency raw material preheating device for hydrofluoric acid production

Abstract

This utility model discloses a high-efficiency raw material preheating device for hydrofluoric acid production, relating to the field of hydrofluoric acid processing technology. It includes support legs and a preheating box, and further comprises: a conveyor box, a feed inlet, a conveying mechanism mounted on the conveyor box, a first inclined screen plate, a second inclined screen plate, a U-shaped support plate, a preheating mechanism mounted on the U-shaped support plate, a recovery mechanism mounted on the preheating box, a striking mechanism mounted on the preheating box, and a discharge port. Through the cooperation of the conveying mechanism, the first inclined screen plate, the second inclined screen plate, the preheating mechanism, and the striking mechanism, fluorite powder is evenly transported to the first inclined screen plate. The striking mechanism causes the first and second inclined screen plates to vibrate, causing the fluorite powder to fall along the inclined screen plates, preventing accumulation. The preheating mechanism preheats the fluorite powder, improving the preheating effect. The recovery mechanism enables the recycling of heat energy, reducing waste heat.

Description

Technical Field

[0001] This utility model relates to the field of hydrofluoric acid processing technology, and in particular to a high-efficiency raw material preheating device for hydrofluoric acid production. Background Technology

[0002] Hydrofluoric acid is a weak inorganic acid formed by dissolving hydrogen fluoride in water. As an important chemical raw material, hydrofluoric acid has wide applications in many fields. Currently, the main industrial method for preparing hydrofluoric acid is the fluorite-sulfuric acid process. This method requires preheating of raw materials such as fluorite powder during production to improve reaction efficiency and product quality.

[0003] However, when preheating fluorite powder in current preheating devices, the powder is mostly preheated by piling it up, which easily leads to uneven internal temperature of the fluorite powder and poor preheating effect. Therefore, it is urgent to improve this method. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-efficiency raw material preheating device for hydrofluoric acid production, which aims to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency raw material preheating device for hydrofluoric acid production includes support legs and a preheating box, and further includes:

[0007] The conveyor box is fixedly installed on the preheating box;

[0008] The feed inlet is located on the conveyor box;

[0009] A conveying mechanism, mounted on the conveying box, is used to transport raw materials to the preheating box;

[0010] The first inclined sieve plate is fixedly installed on the preheating box;

[0011] The second inclined sieve plate is disposed on the preheating box and is fixedly connected to the preheating box;

[0012] A U-shaped support plate is fixedly installed on the preheating box;

[0013] A preheating mechanism, mounted on the U-shaped support plate, is used to preheat the raw materials with generated hot air;

[0014] The recycling mechanism is installed on the preheating box;

[0015] A striking mechanism is installed on the preheating box to strike the first inclined screen plate and the second inclined screen plate to promote the falling of raw materials;

[0016] The discharge port is located on the preheating box.

[0017] Preferably, the conveying mechanism includes:

[0018] A conveyor motor is fixedly mounted on the conveyor box;

[0019] A rotating rod is mounted on the conveyor motor and is fixedly connected to the output end of the conveyor motor.

[0020] The conveyor blades are fixedly mounted on the rotating rod.

[0021] Preferably, the preheating mechanism includes:

[0022] The hair dryer is fixedly mounted on the U-shaped support plate.

[0023] A heating box is mounted on the U-shaped support plate and is fixedly connected to the U-shaped support plate;

[0024] A first air supply pipe is disposed on the blower and the heating box, one end of the first air supply pipe is fixedly connected to the blower, and the other end of the first air supply pipe is fixedly connected to the heating box;

[0025] A blower assembly is installed on the preheating box and the heating box.

[0026] Preferably, the blower assembly includes:

[0027] A honeycomb flow divider is fixedly installed on the preheating box;

[0028] A second air supply duct is disposed on the honeycomb diversion plate. One end of the second air supply duct is fixedly connected to the heating box, and the other end of the second air supply duct is fixedly connected to the honeycomb diversion plate.

[0029] Preferably, the recycling mechanism includes:

[0030] A hot air recovery hood is fixedly installed on the preheating box;

[0031] The filter plate is fixedly installed on the hot air recovery hood;

[0032] The first return air duct is installed on the hot air recovery hood and the heating box. One end of the first return air duct is fixedly connected to the hot air recovery hood, and the other end of the first return air duct is fixedly connected to the heating box.

[0033] The second return air duct is installed on the hot air recovery hood and the conveying box. One end of the second return air duct is fixedly connected to the hot air recovery hood, and the other end of the second return air duct is fixedly connected to the conveying box.

[0034] Preferably, the striking mechanism includes:

[0035] The motor is fixedly mounted on the preheating box.

[0036] A rotating rod is mounted on the striking motor and is fixedly connected to the output end of the striking motor;

[0037] A rotating disk is fixedly mounted on the rotating rod;

[0038] An elastic component is disposed on the rotating disk.

[0039] Preferably, the elastic component includes:

[0040] A fixed housing is fixedly mounted on the rotating disk;

[0041] A spring is disposed on the fixed shell, and one end of the spring is fixedly connected to the fixed shell;

[0042] The slider is slidably mounted on the fixed shell and fixedly connected to the other end of the spring.

[0043] The striking rod is fixedly mounted on the slider.

[0044] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0045] Through the coordinated operation of the conveying mechanism, the first inclined sieve plate, the second inclined sieve plate, the preheating mechanism, and the striking mechanism, fluorite powder is evenly transported onto the first inclined sieve plate. The striking mechanism causes the first and second inclined sieve plates to vibrate, causing the fluorite powder to fall along the sieve plates and preventing accumulation. The preheating mechanism preheats the fluorite powder, improving the preheating effect. A recovery mechanism enables the recycling of heat energy, reducing waste heat. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 A three-dimensional structural schematic diagram of a high-efficiency raw material preheating device for hydrofluoric acid production is shown.

[0048] Figure 2 It shows Figure 1 Rear view sectional view.

[0049] Figure 3 A side cross-sectional view of body 1 is shown.

[0050] Figure 4 It shows Figure 2 A partial three-dimensional structural diagram.

[0051] Figure 5 It shows Figure 4 An explosion diagram.

[0052] Legend:

[0053] 1. Support leg; 2. Preheating box; 3. Conveying box; 4. Feed inlet; 5. First inclined screen plate; 6. Second inclined screen plate; 7. U-shaped support plate; 8. Discharge port; 9. Conveying motor; 10. Rotating rod; 11. Conveying blade; 12. Blower; 13. Heating box; 14. First air duct; 15. Honeycomb diverter plate; 16. Second air duct; 17. Hot air recovery hood; 18. Filter plate; 19. First return air duct; 20. Second return air duct; 21. Striking motor; 22. Rotating rod; 23. Rotating disc; 24. Fixed shell; 25. Spring; 26. Slider; 27. Striking rod. Detailed Implementation

[0054] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0055] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0056] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] Reference Figures 1 to 5 The present invention provides a further description of an embodiment of a high-efficiency raw material preheating device for hydrofluoric acid production.

[0059] A high-efficiency raw material preheating device for hydrofluoric acid production includes a support leg 1 and a preheating box 2, wherein the support leg 1 is fixedly mounted on the preheating box 2; and further includes:

[0060] Conveyor box 3 is fixedly mounted on the preheating box 2; it is used to limit the position of the conveying mechanism.

[0061] Feed inlet 4 is located on the conveyor box 3;

[0062] Reference Figure 1 and Figure 2 In a preferred embodiment, a conveying mechanism is disposed on the conveying box 3 for transporting raw materials to the preheating box 2; the conveying mechanism includes:

[0063] The conveyor motor 9 is fixedly mounted on the conveyor box 3;

[0064] A rotating rod 10 is mounted on the conveying motor 9 and is fixedly connected to the output end of the conveying motor 9.

[0065] The conveying blade 11 is fixedly mounted on the rotating rod 10.

[0066] When in operation, the conveyor motor 9 is started, which drives the rotating rod 10 fixedly connected to its output end to rotate. The rotating rod 10 drives the conveyor blades 11 to rotate, and the conveyor blades 11 transport the fluorite powder raw material evenly into the conveyor box 3 and drop it onto the first inclined screen plate 5.

[0067] The first inclined sieve plate 5 is fixedly installed on the preheating box 2 to prevent the accumulation of fluorite powder raw materials.

[0068] The second inclined sieve plate 6 is disposed on the preheating box 2 and fixedly connected to the preheating box 2; it is used to prevent the accumulation of fluorite powder raw materials.

[0069] U-shaped support plate 7 is fixedly installed on the preheating box 2; it provides support for the blower 12 and the heating box 13.

[0070] Reference Figure 2 and Figure 3 In a preferred embodiment, a preheating mechanism is disposed on the U-shaped support plate 7 and is used to preheat the raw materials by generating hot air; the preheating mechanism includes:

[0071] The hair dryer 12 is fixedly mounted on the U-shaped support plate 7;

[0072] The heating box 13 is mounted on the U-shaped support plate 7 and is fixedly connected to the U-shaped support plate 7;

[0073] A first air supply pipe 14 is disposed on the blower 12 and the heating box 13. One end of the first air supply pipe 14 is fixedly connected to the blower 12, and the other end of the first air supply pipe 14 is fixedly connected to the heating box 13.

[0074] A blower assembly is disposed on the preheating box 2 and the heating box 13. The blower assembly includes:

[0075] The honeycomb diversion plate 15 is fixedly installed on the preheating box 2;

[0076] The second air supply pipe 16 is disposed on the honeycomb diversion plate 15. One end of the second air supply pipe 16 is fixedly connected to the heating box 13, and the other end of the second air supply pipe 16 is fixedly connected to the honeycomb diversion plate 15.

[0077] When working, the heating box 13 is started, which raises the air temperature inside the heating box 13. The blower 12 is started, which generates flowing gas and forms wind. The wind is blown into the heating box 13 through the first air supply pipe 14, and the hot air inside the heating box 13 is blown onto the honeycomb diverter plate 15 through the second air supply pipe 16. The honeycomb diverter plate 15 blows the hot air into the preheating box 2 from multiple places.

[0078] Reference Figures 1 to 3 In a preferred embodiment, a recycling mechanism is disposed on the preheating box 2; the recycling mechanism includes:

[0079] A hot air recovery hood 17 is fixedly installed on the preheating box 2;

[0080] The filter plate 18 is fixedly mounted on the hot air recovery cover 17;

[0081] The first return air duct 19 is disposed on the hot air recovery cover 17 and the heating box 13. One end of the first return air duct 19 is fixedly connected to the hot air recovery cover 17, and the other end of the first return air duct 19 is fixedly connected to the heating box 13.

[0082] The second return air duct 20 is installed on the hot air recovery hood 17 and the conveying box 3. One end of the second return air duct 20 is fixedly connected to the hot air recovery hood 17, and the other end of the second return air duct 20 is fixedly connected to the conveying box 3.

[0083] During operation, the preheated hot air passes through the filter plate 18 and arrives at the hot air recovery hood 17. It is then blown back into the heating box 13 through the first return air duct 19 to improve the circulation of heat. After passing through the second return air duct 20, it arrives at the conveying box 3 to preheat the raw materials during transportation, thereby improving the utilization of energy.

[0084] Reference Figure 4 and Figure 5 In a preferred embodiment, a striking mechanism is disposed on the preheating box 2 to strike the first inclined screen plate 5 and the second inclined screen plate 6, thereby promoting the falling of raw materials; the striking mechanism includes:

[0085] The striking motor 21 is fixedly mounted on the preheating box 2;

[0086] A rotating rod 22 is mounted on the striking motor 21 and is fixedly connected to the output end of the striking motor 21;

[0087] The rotating disk 23 is fixedly mounted on the rotating rod 22;

[0088] An elastic component is disposed on the rotating disk 23. The elastic component includes:

[0089] The fixed housing 24 is fixedly mounted on the rotating disk 23;

[0090] A spring 25 is disposed on the fixed shell 24, and one end of the spring 25 is fixedly connected to the fixed shell 24;

[0091] The slider 26 is slidably disposed on the fixed shell 24 and fixedly connected to the other end of the spring 25;

[0092] The striking rod 27 is fixedly mounted on the slider 26.

[0093] During operation, the striking motor 21 is started, which drives the rotating rod 22, which is fixedly connected to its output end, to rotate. The rotating rod 22 drives the rotating disk 23 to rotate, and the rotating disk 23 drives the elastic component to rotate, generating centrifugal force. This causes the slider 26 to move away from the center of the rotating disk 23. The slider 26 stretches the spring 25 and drives the striking rod 27 to move. The striking rod 27 impacts the first inclined screen plate 5 and the second inclined screen plate 6, thereby accelerating the fall of the raw material.

[0094] The discharge port 8 is located on the preheating box 2.

[0095] Working principle: The heating chamber 13 is started, raising the air temperature inside. The blower 12 is then activated, generating flowing gas and creating airflow. This airflow is blown into the heating chamber 13 through the first air duct 14, and then through the second air duct 16 onto the honeycomb distribution plate 15. The honeycomb distribution plate 15 then directs the hot air into the preheating chamber 2 from multiple points. Raw materials are manually poured into the conveyor box 3 through the feed inlet 4. The conveyor motor 9 is started, driving the rotating rod 10, which is fixedly connected to its output end, to rotate. The rotating rod 10 then drives the conveyor blades 11 to rotate. The sheet 11 evenly transports the fluorite powder raw material into the conveyor box 3, where it falls onto the first inclined screen plate 5. The striking motor 21 is activated, driving the rotating rod 22, which is fixedly connected to its output end, to rotate. The rotating rod 22 drives the rotating disk 23 to rotate, which in turn drives the elastic component to rotate, generating centrifugal force. This causes the slider 26 to move away from the center of the rotating disk 23. The slider 26 stretches the spring 25, causing the striking rod 27 to move. The striking rod 27 impacts the first inclined screen plate 5 and the second inclined screen plate 6, causing the raw material to fall along the inclined surfaces of the first and second inclined screen plates 5 and 6, and exit from the discharge port 8. The preheated hot air passes through the filter plate 18 and reaches the hot air recovery hood 17. Part of the hot air is blown back into the heating box 13 through the first return air pipe 19, and part of the hot air passes through the second return air pipe 20 to reach the conveyor box 3, used to preheat the raw material during transportation, thus improving energy utilization.

[0096] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency raw material preheating device for hydrofluoric acid production, comprising a support leg (1) and a preheating box (2), characterized in that, Also includes: The conveying box (3) is fixedly installed on the preheating box (2); The feed inlet (4) is located on the conveyor box (3); A conveying mechanism is provided on the conveying box (3) for transporting raw materials to the preheating box (2); The first inclined sieve plate (5) is fixedly installed on the preheating box (2); The second inclined sieve plate (6) is disposed on the preheating box (2) and is fixedly connected to the preheating box (2); U-shaped support plate (7) is fixedly installed on the preheating box (2); A preheating mechanism is provided on the U-shaped support plate (7) and is used to preheat the raw materials by generating hot air; A recycling mechanism is installed on the preheating box (2); A striking mechanism is provided on the preheating box (2) to strike the first inclined screen plate (5) and the second inclined screen plate (6) to promote the falling of raw materials; The discharge port (8) is located on the preheating box (2).

2. The high-efficiency raw material preheating device for hydrofluoric acid production according to claim 1, characterized in that, The conveying mechanism includes: A conveyor motor (9) is fixedly mounted on the conveyor box (3); A rotating rod (10) is mounted on the conveying motor (9) and is fixedly connected to the output end of the conveying motor (9); The conveying blade (11) is fixedly mounted on the rotating rod (10).

3. The high-efficiency raw material preheating device for hydrofluoric acid production according to claim 2, characterized in that, The preheating mechanism includes: A hair dryer (12) is fixedly mounted on the U-shaped support plate (7); A heating box (13) is mounted on the U-shaped support plate (7) and is fixedly connected to the U-shaped support plate (7); A first air supply pipe (14) is provided on the blower (12) and the heating box (13). One end of the first air supply pipe (14) is fixedly connected to the blower (12), and the other end of the first air supply pipe (14) is fixedly connected to the heating box (13). A blower assembly is installed on the preheating box (2) and the heating box (13).

4. The high-efficiency raw material preheating device for hydrofluoric acid production according to claim 3, characterized in that, The blowing assembly includes: A honeycomb diversion plate (15) is fixedly installed on the preheating box (2); The second air supply pipe (16) is disposed on the honeycomb diversion plate (15). One end of the second air supply pipe (16) is fixedly connected to the heating box (13), and the other end of the second air supply pipe (16) is fixedly connected to the honeycomb diversion plate (15).

5. The high-efficiency raw material preheating device for hydrofluoric acid production according to claim 4, characterized in that, The recycling facility includes: A hot air recovery hood (17) is fixedly installed on the preheating box (2); The filter plate (18) is fixedly installed on the hot air recovery hood (17); The first return air duct (19) is installed on the hot air recovery hood (17) and the heating box (13). One end of the first return air duct (19) is fixedly connected to the hot air recovery hood (17), and the other end of the first return air duct (19) is fixedly connected to the heating box (13). The second return air duct (20) is installed on the hot air recovery hood (17) and the conveying box (3). One end of the second return air duct (20) is fixedly connected to the hot air recovery hood (17), and the other end of the second return air duct (20) is fixedly connected to the conveying box (3).

6. The high-efficiency raw material preheating device for hydrofluoric acid production according to claim 5, characterized in that, The striking mechanism includes: A striking motor (21) is fixedly mounted on the preheating box (2); A rotating rod (22) is mounted on the striking motor (21) and is fixedly connected to the output end of the striking motor (21); A rotating disk (23) is fixedly mounted on the rotating rod (22); An elastic component is disposed on the rotating disk (23).

7. The high-efficiency raw material preheating device for hydrofluoric acid production according to claim 6, characterized in that, The elastic component includes: A fixed shell (24) is fixedly mounted on the rotating disk (23); A spring (25) is disposed on the fixed shell (24), and one end of the spring (25) is fixedly connected to the fixed shell (24); The slider (26) is slidably disposed on the fixed shell (24) and fixedly connected to the other end of the spring (25); The striking rod (27) is fixedly mounted on the slider (26).

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