A caustic processing preheating device

Abstract

The utility model relates to caustic soda processing technical field, and disclose a kind of caustic soda processing preheating device, including bottom plate and the fixed plate being fixed in bottom plate top left and right sides, further include: setting in the lifting structure of fixed plate inside, the motor is uniformly provided in the side of fixed plate, the one end of motor output shaft is fixed with rotating shaft, installation box is arranged between the fixed plate;The utility model is by a kind of ingenious dynamic stirring mode, when container overturn, utilize internal movable assembly to the continuous and soft agitation of brine, produce intense liquid convection, effectively break temperature stratification and heat accumulation, ensure that every part of brine is with heat source sufficient, evenly heat exchange, to greatly improve the preheating efficiency and temperature consistency, provide stable and reliable feeding condition for subsequent electrolysis procedure, and the device also has backwashing function, it is convenient for staff to flush inside device quickly, further improve subsequent processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of caustic soda processing technology, specifically to a caustic soda processing preheating device. Background Technology

[0002] Caustic soda, also known as sodium hydroxide, is an essential chemical in chemical laboratories and a common chemical product. The pure form is a colorless, transparent crystal with a wide range of applications, including the production of paper, soap, dyes, rayon, metal smelting, petroleum refining, cotton textile finishing, coal tar product purification, food processing, wood processing, and the machinery industry. In the diaphragm electrolysis process, the raw salt is first dissolved, and then soda ash, caustic soda, and barium chloride are added to remove impurities such as calcium, magnesium, and sulfate ions. Sodium polyacrylate or causticized bran is then added to the clarifying tank to accelerate precipitation. After sand filtration, hydrochloric acid is added for neutralization. The brine is preheated and then sent for electrolysis. The electrolyte is preheated, evaporated, separated, and cooled to obtain liquid caustic soda. Further concentration yields the solid caustic soda product. The salt mud wash water is used for salt dissolution.

[0003] A search revealed a preheating device for uniformly preheating caustic soda processing, application number: CN202120048863.1. This device can only rotate its heating tank, while the heating plates are located on both sides of the heating tank. This results in the brine in the middle of the heating tank not being effectively heated. When the brine at the edge of the heating tank reaches a suitable temperature, the temperature of the brine in the middle is lower, resulting in poor overall preheating effect. Moreover, this preheating device is inconvenient to clean after use, causing inconvenience to the staff. Utility Model Content

[0004] The purpose of this invention is to provide a caustic soda processing preheating device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a caustic soda processing preheating device, comprising a base plate and fixing plates fixed to the left and right sides of the top of the base plate, and further comprising:

[0006] A lifting structure is installed inside a fixed plate. A motor is installed on one side of each fixed plate. A rotating shaft is fixed to one end of the output shaft of the motor. An installation box is installed between the fixed plates. The left and right sides of the installation box are bolted to the rotating shaft. A preheating tank is fixed inside the installation box. A feed pipe is connected to the top of the preheating tank. The top of the feed pipe passes through the installation box and extends to the top of the installation box. Heating plate bodies are fixed on the left and right sides of the inner wall of the installation box. A movable plate is placed at the bottom inside the preheating tank. Liquid-dispensing plates are installed on the left and right sides of the movable plate.

[0007] The backwash valves are fixed on the left and right sides of the bottom of the installation box, and the backwash valves pass through the installation box and are connected to the preheating tank. A waste liquid box is placed on the top of the bottom plate.

[0008] Preferably, the liquid-dispensing plate is arranged in a semi-circular arc shape, and the liquid-dispensing plate is hinged to the movable plate. Both the movable plate and the liquid-dispensing plate are made of industrial pure titanium.

[0009] Preferably, guide strips are fixed on both the left and right sides of the front and rear sides of the inner wall of the preheating tank, and guide plates are fixed on both the front and rear sides of the movable plate, with the guide plates extending between the front and rear guide strips and slidingly connected to the surface of the guide strips.

[0010] Preferably, buffer pads are adhered to both the upper and lower surfaces of the guide plate, and one side of the buffer pad extends to the side of the guide plate. The buffer pads are made of fluororubber.

[0011] Preferably, the lifting structure includes a cylinder, a slide groove, and a slider. The cylinder is fixed to the top of the fixed plate, the slide groove is formed on the surface of the fixed plate, the slider is slidably connected inside the slide groove, and the output shaft of the cylinder passes through the inside of the slide groove and is fixedly connected to the top of the slider. The motor is fixed to the surface of one side of the slider, and the output shaft of the motor passes through the slider and is fixed to the rotation shaft.

[0012] Preferably, guide grooves are provided on both the front and rear sides of the inner wall of the slide groove, and guide blocks are fixed on both the front and rear sides of the slider, with one side of the guide block extending into the interior of the guide groove and slidingly connected to the inner wall of the guide groove.

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

[0014] This invention employs a clever dynamic stirring method. When the container is turned over, the internal moving components continuously and gently agitate the brine, generating strong liquid convection. This effectively breaks down temperature stratification and heat accumulation, ensuring that each part of the brine undergoes sufficient and uniform heat exchange with the heat source. This significantly improves preheating efficiency and temperature consistency, providing stable and reliable feeding conditions for subsequent electrolysis processes. Furthermore, the device also has a backwashing function, allowing workers to quickly flush the inside of the device, further improving subsequent processing efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional schematic diagram of the fixing plate in this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the motor in this utility model;

[0018] Figure 4 This is a cross-sectional view of the mounting box in this utility model;

[0019] Figure 5 This is a cross-sectional view of the preheating tank in this utility model;

[0020] Figure 6 This is a three-dimensional schematic diagram of the movable plate in this utility model.

[0021] In the diagram: 1. Base plate; 2. Fixed plate; 3. Lifting structure; 31. Cylinder; 32. Slide groove; 33. Slider; 4. Motor; 5. Rotating shaft; 6. Mounting box; 7. Preheating tank; 8. Feed pipe; 9. Heating plate body; 10. Movable plate; 11. Liquid-dispensing plate; 12. Backwash valve; 13. Waste liquid box; 14. Guide plate; 15. Guide strip; 16. Buffer protective pad; 17. Guide groove; 18. Guide block. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-6 As shown, a caustic soda processing preheating device includes a base plate 1, with fixed plates 2 fixed on both the left and right sides of the top of the base plate 1. A lifting structure 3 is installed inside each fixed plate 2. A motor 4 is installed on one side of each fixed plate 2, and a rotating shaft 5 is fixed to one end of the output shaft of the motor 4. A mounting box 6 is installed between the fixed plates 2, and the left and right sides of the mounting box 6 are bolted to the rotating shaft 5. A preheating tank 7 is fixed inside the mounting box 6, and a feed pipe 8 is connected to the top of the preheating tank 7. The top of the feed pipe 8 passes through the mounting box 6 and extends to the top of the mounting box 6. A sealing cap is installed at the top of the feed pipe 8. The brine can be poured into the preheating tank 7 inside the installation box 6 through the feed pipe 8. After preheating, the operator can open the sealing cover and extract the preheated brine for further processing using the liquid extraction equipment. Heating plate bodies 9 are fixed on both the left and right sides of the inner wall of the installation box 6. A movable plate 10 is placed at the bottom inside the preheating tank 7. Liquid-dispensing plates 11 are set on both the left and right sides of the movable plate 10. Backwash valves 12 are fixed on both the left and right sides of the bottom of the installation box 6. The backwash valves 12 pass through the installation box 6 and are connected to the preheating tank 7. A waste liquid box 13 is placed on the top of the bottom plate 1.

[0024] The liquid-dispensing plate 11 is semi-circular in shape and is hinged to the movable plate 10. Both the movable plate 10 and the liquid-dispensing plate 11 are made of industrial pure titanium. Guide strips 15 are fixed on the left and right sides of the front and rear sides of the inner wall of the preheating tank 7. Guide plates 14 are fixed on the front and rear sides of the movable plate 10, and the guide plates 14 extend between the front and rear guide strips 15 and slide to connect with the surface of the guide strips 15. When the motors 4 on both sides are turned on, the motors 4 will drive the mounting box 6 to rotate. During the rotation, the vertical position of the preheating tank 7 changes continuously, causing the movable plate 10 and the liquid-dispensing plate to rotate. The plate 11 slides up and down in the brine inside the preheating tank 7. Since the plate 11 is hinged to the movable plate 10, when the movable plate 10 moves up and down, the plate 11 on both sides will tilt, thereby continuously pushing the brine inside the preheating tank 7 to both sides, achieving the purpose of stirring the brine inside the preheating tank 7. This allows the heating plate body 9 to heat the brine inside the preheating tank 7 evenly, improving the preheating effect. The guide strip 15 and guide plate 14 can guide the movable plate 10 that slides up and down, preventing the movable plate 10 from moving randomly inside the preheating tank 7.

[0025] Both the upper and lower surfaces of the guide plate 14 are bonded with buffer pads 16, and one side of the buffer pads 16 extends to the side of the guide plate 14. The buffer pads 16 are made of fluororubber. In order to prevent damage to the upper and lower surfaces of the preheating tank 7 when the movable plate 10 slides up and down, the buffer pads 16 can buffer the sliding movable plate 10.

[0026] The lifting structure 3 includes a cylinder 31, a slide groove 32, and a slider 33. The cylinder 31 is fixed to the top of the fixed plate 2. The slide groove 32 is formed on the surface of the fixed plate 2. The slider 33 is slidably connected inside the slide groove 32, and the output shaft of the cylinder 31 passes through the interior of the slide groove 32 and is fixedly connected to the top of the slider 33. The motor 4 is fixed to the surface of one side of the slider 33, and the output shaft of the motor 4 passes through the slider 33 and is fixed to the rotating shaft 5. Guide grooves 17 are formed on both the front and rear sides of the inner wall of the slide groove 32. Guide blocks 18 are fixed on both the front and rear sides of the slider 33, and one side of the guide block 18 extends into the guide groove 17. The motor 4 is slidably connected to the inner wall of the guide groove 17. When the operator needs to backwash the inside of the preheating tank 7, the mounting box 6 can be flipped so that the feed pipe 8 faces downward and the backwash valve 12 faces upward. At this time, the operator can open the cylinders 31 on both sides so that the output shaft of the cylinder 31 pushes the slider 33 down, so that the discharge position of the feed pipe 8 is lowered as much as possible to avoid splashing of waste liquid and causing pollution to the surrounding working environment. The guide groove 17 and the guide block 18 can guide the slider 33 and increase the stability of the mounting box 6 when it moves up and down.

[0027] Working Principle: First, refined brine is injected into the preheating tank 7 through the feed pipe 8. Then, the feed pipe 8 is sealed, and the heating plates 9 on both sides are activated to heat the preheating tank 7 inside the mounting box 6. Simultaneously, the motors 4 on both sides drive the rotating shaft 5 to periodically rotate the mounting box 6. During the rotation of the preheating tank 7, due to gravity, the movable plate 10 placed inside slides up and down along the guide strip 15 inside the preheating tank 7. The guide plates 14 fixed on the front and rear sides of the movable plate 10 form a sliding fit with the guide strip 15 on the inner wall of the preheating tank 7, ensuring that the movable plate 10 moves along a predetermined trajectory. The liquid-dispersing plates 11 hinged to both sides of the movable plate 10 will change their tilt angle during the movement, continuously dispersing the brine in the preheating tank 7 to both sides, forming forced convection. This effectively breaks the temperature stratification formed by the brine during the heating process, allowing heat to be evenly transferred from the wall of the preheating tank 7 to the entire cavity, significantly improving the heat exchange efficiency. After preheating, the staff opens the sealing cover above the feed pipe 8 and discharges the liquid through the feed pipe 8 using the pumping equipment. When cleaning and maintenance are required, the motor 4 first flips the mounting box 6 to the position where the backwash valve 12 faces upward and the feed pipe 8 faces downward. Then, the cylinder 31 on the top of the fixed plate 2 pushes the slider 33 to move downward along the slide groove 32. The guide blocks 18 on the front and rear sides of the slider 33 slide in the guide groove 17 to ensure a smooth lifting process and lower the discharge port of the feed pipe 8 to the lowest position, effectively preventing the splashing of cleaning waste liquid. The cleaning liquid is injected into the preheating tank 7 from the backwash valve 12. Combined with the continuous flipping motion of the mounting box 6 and the reciprocating motion of the movable plate 10 and the liquid-dispensing plate 11 in the cleaning liquid, the inner wall of the preheating tank 7 is flushed in all directions. The waste liquid generated during the entire cleaning process is finally discharged into the waste liquid box 13 on the top of the bottom plate 1 through the feed pipe 8, realizing the centralized collection and treatment of cleaning waste liquid, thereby completing the preheating operation.

[0028] 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 caustic soda processing preheating device, comprising a base plate (1) and fixing plates (2) fixed to the left and right sides of the top of the base plate (1), characterized in that, Also includes: A lifting structure (3) is set inside the fixed plate (2). A motor (4) is set on one side of the fixed plate (2). A rotating shaft (5) is fixed at one end of the output shaft of the motor (4). An installation box (6) is set between the fixed plates (2). The left and right sides of the installation box (6) are bolted to the rotating shaft (5). A preheating tank (7) is fixed inside the installation box (6). A feed pipe (8) is connected to the top of the preheating tank (7). The top of the feed pipe (8) passes through the installation box (6) and extends to the top of the installation box (6). A heating plate body (9) is fixed on the left and right sides of the inner wall of the installation box (6). A movable plate (10) is placed at the bottom inside the preheating tank (7). A liquid-dispensing plate (11) is set on the left and right sides of the movable plate (10). Backwash valves (12) are fixed on the left and right sides of the bottom of the mounting box (6), and the backwash valves (12) pass through the mounting box (6) and are connected to the preheating tank (7). A waste liquid box (13) is placed on the top of the bottom plate (1).

2. The caustic soda processing preheating device according to claim 1, characterized in that: The liquid-dispelling plate (11) is generally arranged in a semi-circular arc shape, and the liquid-dispelling plate (11) is hinged to the movable plate (10). The movable plate (10) and the liquid-dispelling plate (11) are both made of industrial pure titanium.

3. The caustic soda processing preheating device according to claim 1, characterized in that: Guide strips (15) are fixed on the left and right sides of the front and rear sides of the inner wall of the preheating tank (7), and guide plates (14) are fixed on the front and rear sides of the movable plate (10). The guide plates (14) extend between the front and rear guide strips (15) and slide to connect with the surface of the guide strips (15).

4. The caustic soda processing preheating device according to claim 3, characterized in that: The upper and lower surfaces of the guide plate (14) are both bonded with buffer pads (16), and one side of the buffer pads (16) extends to the side of the guide plate (14). The buffer pads (16) are made of fluororubber.

5. The caustic soda processing preheating device according to claim 1, characterized in that: The lifting structure (3) includes a cylinder (31), a slide groove (32) and a slider (33). The cylinder (31) is fixed on the top of the fixed plate (2). The slide groove (32) is opened on the surface of the fixed plate (2). The slider (33) is slidably connected inside the slide groove (32). The output shaft of the cylinder (31) passes through the inside of the slide groove (32) and is fixedly connected to the top of the slider (33). The motor (4) is fixed on the surface of one side of the slider (33). The output shaft of the motor (4) passes through the slider (33) and is fixed to the rotating shaft (5).

6. The caustic soda processing preheating device according to claim 5, characterized in that: Guide grooves (17) are provided on both the front and rear sides of the inner wall of the slide groove (32). Guide blocks (18) are fixed on both the front and rear sides of the slider (33), and one side of the guide block (18) extends into the interior of the guide groove (17) and slides in connection with the inner wall of the guide groove (17).

Images