A sodium chlorate solution continuous concentration reactor with temperature gradient regulation

Abstract

The utility model discloses a kind of sodium chlorate solution continuous concentration reaction kettle with temperature gradient regulation and control, belong to sodium chlorate solution preparation related technical field, to solve the problem of the working efficiency of sodium chlorate solution continuous concentration in prior art due to the temperature of whole kettle is consistent, therefore the evaporation rate of sodium chlorate solution is limited by solution overall boiling point, this leads to the evaporation speed of sodium chlorate solution slows down, to reduce, including kettle body, the outer wall of the kettle body is fixedly connected with fixed ring, the outer wall of the kettle body is contacted with three jackets, the upper surface of the fixed ring and three jackets is all processed with ring groove, the lower surface of three the jacket is all processed with convex ring, the lower end of the kettle body is processed with discharge gate, the upper end of the kettle body is processed with feed inlet, the shape of the middle part of the kettle body is cylindrical, the shape of upper and lower ends is bowl-shaped.

Description

Technical Field

[0001] This invention belongs to the technical field of sodium chlorate solution preparation, and more specifically, relates to a continuous concentration reactor for sodium chlorate solution with temperature gradient control. Background Technology

[0002] Sodium chlorate is an important chemical raw material with wide applications in various industrial fields. For example, it is used for bleaching pulp in the paper industry, for dyeing fabrics in the printing and dyeing industry, for manufacturing pharmaceutical intermediates in the pharmaceutical field, and as a disinfectant and bactericide in water treatment. The production of sodium chlorate solution requires continuous concentration processing using a reaction vessel.

[0003] Currently, when sodium chlorate solution is processed in a reactor, the temperature is uniform throughout the reactor. Therefore, the evaporation rate of the sodium chlorate solution is limited by the overall boiling point of the solution, which slows down the evaporation rate and reduces the efficiency of continuous concentration of sodium chlorate solution. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a continuous concentration reactor for sodium chlorate solution with temperature gradient control. This solves the problem in existing technologies where the evaporation rate of sodium chlorate solution is limited by the overall boiling point of the solution because the temperature of the entire reactor is uniform. This results in a slower evaporation rate of sodium chlorate solution, thus reducing the efficiency of continuous concentration.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a vessel body, the outer wall of which is fixedly connected to a fixing ring, the outer wall of which is in contact with three jackets, the upper surfaces of the fixing ring and the three jackets are all machined with ring grooves, the lower surfaces of the three jackets are all machined with convex rings, the lower end of the vessel body is machined with a discharge port, the upper end of the vessel body is machined with a feed port, the middle part of the vessel body is cylindrical, and the upper and lower ends are bowl-shaped.

[0006] As a preferred embodiment of this utility model, the surfaces of the three jackets are respectively equipped with corresponding feed pipes, and the sidewalls of the three jackets are respectively equipped with corresponding discharge pipes.

[0007] As a preferred embodiment of this utility model, a motor is installed on the upper surface of the vessel body, the output shaft of the motor is fixedly connected to a rotating rod, the end of the rotating rod is rotatably connected to the vessel body through a bearing, and the inner wall of the vessel body is in contact with two scrapers.

[0008] As a preferred embodiment of this utility model, the lower end of the rotating rod is fixedly connected to the extension rod, and the outer wall of the extension rod is fixedly connected to two scrapers.

[0009] As a preferred technical solution of this utility model, multiple pressure plates are provided on both sides of the three jackets, the outer walls of the multiple pressure plates are in contact with the corresponding jackets, and two fixing bolts are movably passed through the surfaces of the multiple pressure plates through through holes, and the multiple fixing bolts are threadedly connected to the corresponding jackets.

[0010] As a preferred embodiment of this invention, an anchor-type stirring paddle is installed on the outer wall of the rotating rod.

[0011] This invention provides a continuous concentration reactor for sodium chlorate solution with temperature gradient control, which has the following advantages:

[0012] 1. This novel reactor, consisting of a vessel body, a fixed ring, a jacket, an annular groove, and a convex ring, allows for temperature gradient control within the reactor when necessary. The operator places one jacket over the side wall of the vessel body from above, inserting the lower convex ring into the fixed ring on the side wall, and then inserting the convex ring into the annular groove. Two more jackets are then placed on the side of the vessel body, with the convex ring of the upper jacket positioned in the annular groove of the lower jacket. A pressure plate is then placed against the two jackets, and two fixing bolts are screwed into the jackets to secure the pressure plate, ensuring it is tightly against the jackets. The remaining pressure plates are then secured using the same method. Different heat transfer media are then introduced into the three feed pipes. This method allows the three jackets to heat the reactor at different temperatures, enabling temperature gradient control within the reactor. This results in locally high evaporation rates, while the upper low-temperature zone reduces excessive steam escape, making the evaporation process more concentrated and efficient, thereby improving the working efficiency of the continuous concentration reactor for sodium chlorate solution.

[0013] 2. When processing sodium chlorate solution, the motor, rotating rod, anchor-type stirring paddle, extension rod, and scrapers are used. The motor is started, which drives the rotating rod to rotate. Simultaneously, the rotating rod drives the anchor-type stirring paddle and the extension rod to rotate. The extension rod drives two scrapers to move along the inner wall of the reactor. In this way, the anchor-type stirring paddle can stir the sodium chlorate solution while the scrapers prevent the sodium chlorate solution from adhering to the inner wall of the reactor, thus making the stirring of the sodium chlorate solution more uniform. This improves the working efficiency of the continuous concentration reactor for sodium chlorate solution. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 for Figure 1 Top rear view diagram;

[0016] Figure 3 for Figure 1 A partial sectional view;

[0017] Figure 4 for Figure 3 A magnified view of part A in the middle.

[0018] In the diagram: 1. Kettle body; 2. Fixing ring; 3. Jacket; 4. Ring groove; 5. Protruding ring; 6. Feed pipe; 7. Discharge pipe; 8. Motor; 9. Rotating rod; 10. Anchor-type stirring paddle; 11. Extension rod; 12. Scraper; 13. Pressure plate; 14. Fixing bolt; 15. Discharge port; 16. Feed port. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1 to 4This utility model provides a technical solution for a continuous concentration reactor for sodium chlorate solution with temperature gradient control: it includes a reactor body 1, the outer wall of the reactor body 1 is fixedly connected to a fixing ring 2, the outer wall of the reactor body 1 is in contact with three jackets 3, the heat medium in the jackets 3 can heat the reactor body 1, the three jackets 3 are tightly attached to the reactor body 1, the upper surfaces of the fixing ring 2 and the three jackets 3 are all machined with annular grooves 4, the lower surfaces of the three jackets 3 are all machined with protruding rings 5, the protruding rings 5 ​​can be inserted into the annular grooves 4, the lower end of the reactor body 1 is machined with a discharge port 15, the upper end of the reactor body 1 is machined with a feed port 16, the middle part of the reactor body 1 is cylindrical, and the upper and lower ends are bowl-shaped. The bowl-shaped design prevents sodium chlorate solution from remaining inside the reactor body 1. When temperature gradient control is required within the reactor, the operator places a jacket 3 over the side wall of the reactor body 1 from above, and inserts the lower convex ring 5 into the fixing ring 2 fixed to the side wall of the reactor body 1, so that the convex ring 5 is inserted into the annular groove 4. Then, two more jackets 3 are successively placed over the side of the reactor body 1, and the convex ring 5 of the upper jacket 3 is placed in the annular groove 4 of the lower jacket 3. Next, a pressure plate 13 is placed tightly against the two jackets 3, and two fixing bolts 14 are screwed into the jackets 3 to fix the pressure plate 13, so that the pressure plate 13 is tightly against the two jackets 3. Then, the remaining pressure plates 13 are fixed in the same way. Finally, different heat transfer media are added into the three feed pipes 6. For example, rapid evaporation is achieved in the lowest jacket 3 using saturated steam at 110℃-120℃, while the middle jacket 3 uses heat-conducting oil at 100℃-110℃ to maintain the flow and heat transfer balance of the solution. The upper jacket 3 uses warm water at 80℃-90℃ to condense the steam, reducing mist entrainment. The heat transfer medium can be selected according to actual needs. This method allows the three jackets 3 to heat the reactor at different temperatures, enabling temperature gradient control inside the reactor and creating a localized high evaporation rate. The lower temperature zone at the top reduces excessive steam escape, making the evaporation process more concentrated and efficient, thereby improving the working efficiency of the sodium chlorate solution continuous concentration reactor.

[0023] The three jackets 3 are each equipped with a corresponding feed pipe 6, which allows the heat medium to enter the jacket 3. The three jackets 3 are each equipped with a corresponding discharge pipe 7 on their side walls, which allows the heat medium in the jacket 3 to be discharged from the jacket 3.

[0024] The upper surface of the vessel body 1 is equipped with a motor 8. The model of the motor 8 is selected according to actual needs, and only those that meet the working requirements are selected. The output shaft of the motor 8 is fixedly connected to the rotating rod 9. The motor 8 drives the rotating rod 9 to rotate. The end of the rotating rod 9 is rotatably connected to the vessel body 1 through a bearing. The rotating rod 9 rotates on the vessel body 1. The inner wall of the vessel body 1 is in contact with two scrapers 12. The scrapers 12 can scrape the inside of the vessel body 1 to prevent sodium chlorate solution from adhering to the inner wall of the vessel body 1. The material of the scrapers 12 can be a material with high chemical stability, corrosion resistance and non-reactive properties, such as Hastelloy.

[0025] The lower end of the rotating rod 9 is fixedly connected to the extension rod 11. The rotating rod 9 drives the extension rod 11 to rotate. The outer wall of the extension rod 11 is fixedly connected to two scrapers 12. The extension rod 11 drives the scrapers 12 to rotate.

[0026] Multiple pressure plates 13 are provided on both sides of the multiple jackets 3. The pressure plates 13 are placed close to the two jackets 3. The outer walls of the multiple pressure plates 13 are in contact with the corresponding jackets 3. Two fixing bolts 14 are movably passed through the surface of the multiple pressure plates 13 through through holes. The fixing bolts 14 fix the pressure plates 13. The multiple fixing bolts 14 are threadedly connected to the corresponding jackets 3.

[0027] An anchor-type stirring paddle 10 is installed on the outer wall of the rotating rod 9, and the rotating rod 9 drives the anchor-type stirring paddle 10 to rotate.

[0028] The specific usage and function of this embodiment are as follows:

[0029] In use, the operator first places a jacket 3 over the side wall of the vessel body 1 from above, and inserts the lower convex ring 5 into the fixing ring 2 fixed to the side wall of the vessel body 1, so that the convex ring 5 is inserted into the annular groove 4. Then, two more jackets 3 are placed on the side of the vessel body 1 in sequence, and the convex ring 5 of the upper jacket 3 is placed in the annular groove 4 of the lower jacket 3. Then, a pressure plate 13 is placed tightly against the two jackets 3, and two fixing bolts 14 are screwed into the jackets 3 to fix the pressure plate 13 tightly against the two jackets 3. Then, the remaining pressure plates 13 are fixed in the same way. Then, different heat transfer media are added into the three feed pipes 6. The three jackets 3 heat the reactor at different temperatures, allowing for temperature gradient control within the reactor to create localized high evaporation rates. The upper low-temperature zone reduces excessive steam escape, making the evaporation process more concentrated and efficient. Sodium chlorate solution is then poured into the reactor body 1 through the inlet 16. The external power supply to the motor 8 is then connected, starting the motor 8. The motor 8 drives the rotating rod 9 to rotate, which in turn drives the anchor-type stirring paddle 10. Simultaneously, the rotating rod 9 drives the extension rod 11 to rotate, which in turn drives the scraper 12 to rotate, scraping the interior of the reactor body 1. After continuous concentration, the sodium chlorate solution is discharged from the reactor body 1 through the outlet 15, completing the continuous concentration of the sodium chlorate solution.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A continuous concentration reactor for sodium chlorate solution with temperature gradient control, characterized in that: The vessel includes a vessel body (1), the outer wall of which is fixedly connected to a fixing ring (2), the outer wall of which is in contact with three jackets (3), the upper surfaces of the fixing ring (2) and the three jackets (3) are all machined with ring grooves (4), the lower surfaces of the three jackets (3) are all machined with convex rings (5), the lower end of the vessel body (1) is machined with a discharge port (15), the upper end of the vessel body (1) is machined with a feed port (16), the middle part of the vessel body (1) is cylindrical, and the upper and lower ends are bowl-shaped.

2. The sodium chlorate solution continuous concentration reactor with temperature gradient control according to claim 1, characterized in that: The surfaces of the three jackets (3) are respectively equipped with corresponding feed pipes (6), and the side walls of the three jackets (3) are respectively equipped with corresponding discharge pipes (7).

3. The continuous concentration reactor for sodium chlorate solution with temperature gradient control according to claim 1, characterized in that: A motor (8) is installed on the upper surface of the vessel body (1). The output shaft of the motor (8) is fixedly connected to the rotating rod (9). The end of the rotating rod (9) is rotatably connected to the vessel body (1) through a bearing. The inner wall of the vessel body (1) is in contact with two scrapers (12).

4. The continuous concentration reactor for sodium chlorate solution with temperature gradient control according to claim 3, characterized in that: The lower end of the rotating rod (9) is fixedly connected to the extension rod (11), and the outer wall of the extension rod (11) is fixedly connected to the two scrapers (12).

5. The continuous concentration reactor for sodium chlorate solution with temperature gradient control according to claim 1, characterized in that: Multiple pressure plates (13) are provided on both sides of the three jackets (3). The outer walls of the multiple pressure plates (13) are in contact with the corresponding jackets (3). Two fixing bolts (14) are movably passed through the surfaces of the multiple pressure plates (13) through through holes. The multiple fixing bolts (14) are threadedly connected to the corresponding jackets (3).

6. The continuous concentration reactor for sodium chlorate solution with temperature gradient control according to claim 3, characterized in that: An anchor-type stirring paddle (10) is installed on the outer wall of the rotating rod (9).

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