A chemical production crystallization kettle

Abstract

The utility model belongs to the technical field of chemical production, and particularly relates to a chemical production crystallization kettle, comprising a kettle body, an upper cover is fixed on the top of the kettle body, a circulating water channel in the shape of a threaded circular tube is opened on the kettle body, and a circulating water inlet is fixed on the outer wall of the kettle body and located at the upper end opening of the circulating water channel; by arranging a transmission component, the rotation directions of the cross frame and the connecting sleeve are opposite, so that the raw materials at various positions in the inner cavity of the kettle body can be fully stirred, and the concentration difference of the raw materials at different positions due to insufficient stirring is avoided, thereby affecting the crystallization reaction, and improving the crystallization efficiency of the device; by arranging a spray component and a scraper, multiple scrapers can clean the inner wall of the kettle body more fully, thereby improving the self-cleaning ability of the device, and reducing the adverse effects of the residue on the inner wall of the kettle body on subsequent use.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical production, in particular to a crystallization kettle for chemical production. Background Art

[0002] Crystallization refers to the separation process of solid crystals from solutions, vapors or melts. The crystallization process is an important operation unit in the chemical process and an important link in the production of chemical products. Crystallization is a high-efficiency, low-energy, and low-pollution manufacturing and separation technology, which has received special attention from the international industrial and scientific communities in recent years. In this process, a crystallization kettle is often used. The crystallization kettle is a crystallization equipment that requires chilled water or refrigerant water to rapidly cool down the interlayer after the material mixing reaction.

[0003] For example, the Chinese patent with publication number CN207085386U discloses a crystallization kettle, including a kettle body, which is provided with a feed port and a discharge port, the outer wall of the kettle body is provided with an outer interlayer, the outer interlayer is provided with an outer heat exchange tube, the outer heat exchange tube is spirally evenly wound around the outer interlayer, the kettle body is provided with an inner interlayer, the inner interlayer is provided with an inner heat exchange tube, the inner heat exchange tube is spirally evenly wound around the inner interlayer, the kettle body is provided with a longitudinal agitator and two transverse agitators, and the kettle body is provided with a vacuum pump. The crystallization kettle of the utility model has a large heat exchange area, high heat transfer efficiency, sufficient stirring, high crystallization rate, and good crystallization effect.

[0004] This patent has some disadvantages when used, such as: after the mixed solution completes the chemical reaction and crystallizes, the device in this patent is prone to crystallization on the inner wall of the kettle body, which is extremely inconvenient to clean, and the stirring effect of the device in this patent is poor, which easily causes deviations in the solution concentration at different positions in the inner cavity of the kettle body, causing the crystallization reaction to be affected to a certain extent. In view of this, we propose a chemical production crystallization kettle. Utility Model Content

[0005] The purpose of the utility model is to provide a crystallization kettle for chemical production to solve the problems raised in the above background technology.

[0006] In view of this, the utility model provides a chemical production crystallization kettle, comprising:

[0007] A kettle body, wherein an upper cover is fixed on the top of the kettle body, a circulating water channel in the shape of a threaded circular tube is opened on the kettle body, a circulating water inlet is fixed on the outer wall of the kettle body and located at the upper end opening of the circulating water channel, a circulating water outlet is fixed on the outer wall of the kettle body and located at the lower end opening of the circulating water channel, and a temperature sensor is installed on the lower surface of the upper cover;

[0008] A stirring mechanism, which is located in the inner cavity of the kettle body and is used to fully stir the mixed raw materials in the kettle body. The stirring mechanism includes a transmission component, a scraping component and a stirring component;

[0009] A spray assembly, which is arranged on the kettle body and is used to spray water on the inner wall of the kettle body and cooperate with the scraper assembly to clean the inner cavity of the kettle body;

[0010] A discharge pipe is installed at the bottom center of the kettle body and is used to discharge the material in the inner cavity of the kettle body.

[0011] In the above technical solution, further, the transmission assembly includes:

[0012] The motor is fixedly mounted on the upper surface of the upper cover, and the output shaft of the motor passes through the upper surface of the upper cover and extends to the inner cavity of the kettle body, and a first gear is fixed to the bottom end of the output shaft of the motor, and a fixing frame fixed to the lower surface of the upper cover is arranged on the circumference of the first gear, and the fixing frame is in a cross-shaped structure, and a second gear is rotatably mounted on the fixing frame, and a connecting column rotatably connected to the fixing frame is fixed to the lower surface of the second gear, and a cross-shaped frame rotatably connected to the fixing frame is fixed to the bottom end of the connecting column, and a bevel gear 1 rotatably connected to the fixing frame is arranged on the lower surface of the cross-shaped frame, and a bevel gear 3 rotatably connected to the fixing frame is arranged directly below the bevel gear 1, and a bevel gear 2 is symmetrically arranged between the bevel gear 1 and the bevel gear 3, and the upper and lower ends of the bevel gear 2 are respectively meshed with the bevel gear 1 and the bevel gear 3, and the bevel gear 2 is rotatably matched with the cross bar end of the fixing frame.

[0013] In the above technical solution, further, the scraper assembly includes:

[0014] Four scrapers are respectively fixedly mounted on one end of the cross frame away from the connecting column, and the outer wall of the scraper is in contact with the inner wall of the kettle body.

[0015] In the above technical solution, further, the stirring assembly includes:

[0016] A connecting sleeve is fixedly mounted on the lower surface of the bevel gear three and is rotatably connected to the fixing frame, and a plurality of inverted L-shaped stirring rods are fixed to the circumferential side wall of the connecting sleeve.

[0017] In the above technical solution, further, the stirring assembly also includes:

[0018] A plurality of round rods are evenly distributed and respectively fixedly mounted on the inner side wall of the scraper, and the plurality of round rods are respectively staggeredly arranged with the plurality of stirring blades on the stirring rod.

[0019] In the above technical solution, further, the spray assembly includes:

[0020] A water tank, the water tank is fixedly mounted on the upper surface of the upper cover, a water pump is installed in the water tank, an annular water pipe is arranged on the upper part of the inner cavity of the kettle body, and the water inlet end of the water pipe passes through the lower surface of the upper cover and extends into the water tank to be fixed with the output end of the water pump, a plurality of high-pressure nozzles distributed at equal intervals in a circle are fixed on the lower surface of the annular part of the water pipe, a water filling pipe is arranged on the upper surface of the water tank, and a plug is installed at the opening of the water filling pipe.

[0021] In the above technical solution, further, protective covers are provided on the outer sides of the first gear and the second gear and the outer sides of bevel gear one, bevel gear two and bevel gear three. The protective covers located on the outer sides of the first gear and the second gear are in the shape of a rectangular frame and are fixed to the lower surface of the upper cover, and the protective covers located on the outer sides of bevel gear one, bevel gear two and bevel gear three are in the shape of a circular tubular structure and are fixed to the cross bar end of the fixed frame.

[0022] The beneficial effects of the utility model are:

[0023] 1. The chemical production crystallization kettle is provided with a transmission component, and uses bevel gear 1, bevel gear 2 and bevel gear 3 for transmission, so that the rotation directions of the cross frame and the connecting sleeve are opposite, that is, the rotation directions of the multiple round rods located on the inner side of the scraper and the multiple stirring blades on the stirring rod are opposite, so that the raw materials at various positions in the inner cavity of the kettle can be fully stirred, avoiding the concentration difference of the raw materials at different positions due to insufficient stirring, thereby affecting the crystallization reaction, and improving the crystallization efficiency of the device.

[0024] 2. The chemical production crystallization kettle is provided with a spray assembly and a scraper, and uses a water pump to transport the water in the water tank to the water pipe, and the inner wall of the kettle body is washed under the action of multiple high-pressure nozzles, so that the multiple scrapers can clean the inner wall of the kettle body more fully, thereby improving the self-cleaning ability of the device and reducing the adverse effects of the residue on the inner wall of the kettle body on subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the inner cavity of the kettle body in the utility model;

[0027] Figure 3 It is a structural schematic diagram of the spray assembly in the utility model;

[0028] Figure 4 It is a structural schematic diagram of the stirring mechanism and the scraping assembly in the utility model;

[0029] Figure 5 It is a structural schematic diagram of the transmission component in the utility model.

[0030] The symbols in the figure are:

[0031] 1. Kettle body; 2. Upper cover; 3. Circulating water channel; 4. Circulating water inlet; 5. Circulating water outlet; 6. Temperature sensor; 7. Motor; 8. First gear; 9. Fixed frame; 10. Second gear; 11. Connecting column; 12. Cross frame; 13. Scraper; 14. Bevel gear one; 15. Bevel gear two; 16. Bevel gear three; 17. Connecting sleeve; 18. Stirring rod; 19. Round rod; 20. Water tank; 21. Water pump; 22. Water pipe; 23. High-pressure nozzle; 24. Water pipe; 25. Plug; 26. Protective cover; 27. Discharge pipe. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0033] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0035] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words 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 cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0036] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0037] Embodiment 1:

[0038] See also Figure 1 - Figure 5 As shown, this embodiment provides a chemical production crystallization kettle, comprising:

[0039] A kettle body 1, an upper cover 2 is fixed on the top of the kettle body 1, a circulating water channel 3 in the shape of a threaded circular tube is opened on the kettle body 1, a circulating water inlet 4 is fixed on the outer wall of the kettle body 1 and located at the upper end opening of the circulating water channel 3, a circulating water outlet 5 is fixed on the outer wall of the kettle body 1 and located at the lower end opening of the circulating water channel 3, and a temperature sensor 6 is installed on the lower surface of the upper cover 2;

[0040] A stirring mechanism, which is located in the inner cavity of the kettle body 1 and is used to fully stir the mixed raw materials in the kettle body 1. The stirring mechanism includes a transmission component, a scraping component and a stirring component;

[0041] A spray assembly is arranged on the kettle body 1 and is used to spray water on the inner wall of the kettle body 1 and cooperate with the scraper assembly to clean the inner cavity of the kettle body 1;

[0042] A discharge pipe 27, which is installed at the bottom center of the kettle body 1 and is used to discharge the material in the inner cavity of the kettle body 1;

[0043] In this embodiment, the transmission assembly includes:

[0044] Motor 7, motor 7 is fixedly mounted on the upper surface of the upper cover 2, and the output shaft of motor 7 passes through the upper surface of the upper cover 2 and extends to the inner cavity of the kettle body 1, a first gear 8 is fixed to the bottom end of the output shaft of motor 7, a fixing frame 9 fixed to the lower surface of the upper cover 2 is arranged on the peripheral side of the first gear 8, the fixing frame 9 is in a cross-shaped structure, a second gear 10 is rotatably mounted on the fixing frame 9, a connecting column 11 rotatably connected to the fixing frame 9 is fixed to the lower surface of the second gear 10, a cross-shaped frame 12 rotatably connected to the fixing frame 9 is fixed to the bottom end of the connecting column 11, a bevel gear 14 rotatably connected to the fixing frame 9 is arranged on the lower surface of the cross-shaped frame 12, a bevel gear 3 16 rotatably connected to the fixing frame 9 is arranged directly below the bevel gear 1 14, a bevel gear 2 15 is symmetrically arranged between the bevel gear 1 14 and the bevel gear 3 16, and the upper and lower ends of the bevel gear 2 15 are respectively meshed with the bevel gear 1 14 and the bevel gear 3 16, and the bevel gear 2 15 is rotatably matched with the cross bar end of the fixing frame 9;

[0045] In this embodiment, the scraper assembly includes:

[0046] Four scrapers 13, the four scrapers 13 are respectively fixedly mounted on one end of the cross frame 12 away from the connecting column 11, and the outer wall of the scraper 13 is in contact with the inner wall of the kettle body 1;

[0047] In this embodiment, the stirring assembly includes:

[0048] A connecting sleeve 17, which is fixedly mounted on the lower surface of the bevel gear 3 16 and is rotatably connected to the fixing frame 9, and a plurality of inverted L-shaped stirring rods 18 are fixed to the circumferential side wall of the connecting sleeve 17;

[0049] In this embodiment, the stirring assembly further includes:

[0050] A plurality of round rods 19, the plurality of round rods 19 are evenly distributed and fixedly mounted on the inner side wall of the scraper 13, and the plurality of round rods 19 are staggered with the plurality of stirring blades on the stirring rod 18;

[0051] In this embodiment, the spray assembly includes:

[0052] The water tank 20 is fixedly mounted on the upper surface of the upper cover 2, a water pump 21 is installed in the water tank 20, an annular water pipe 22 is arranged on the upper part of the inner cavity of the kettle body 1, and the water inlet end of the water pipe 22 passes through the lower surface of the upper cover 2 and extends to the water tank 20 to be fixed with the output end of the water pump 21, a plurality of high-pressure nozzles 23 distributed at equal intervals around the circumference are fixed on the lower surface of the annular part of the water pipe 22, a water supply pipe 24 is arranged on the upper surface of the water tank 20, and a plug 25 is installed at the opening of the water supply pipe 24.

[0053] Among them, the working principle of this device is as follows:

[0054] Reference Manual Attached Figure 1-2, a feeding pipe is arranged on the outer wall of the upper cover 2 and between the circulating water inlet 4 and the circulating water outlet 5. When in use, raw materials can be injected into the inner cavity of the kettle body 1 through the feeding pipe, and then the stirring mechanism is started, at this time, the motor 7 starts to work, the output shaft of the motor 7 drives the first gear 8 to rotate, the first gear 8 drives the second gear 10 to rotate, the second gear 10 drives the cross frame 12 to rotate through the connecting column 11, the scraper 13 located on the side of the cross frame 12 rotates synchronously with the cross frame 12, and scrapes the inner wall of the kettle body 1, and at the same time, a plurality of round rods 19 located on the inner side wall of the scraper 13 stir the raw materials at the outer side of the inner cavity of the kettle body 1; when the cross frame 12 rotates, the cross frame 12 drives the bevel gear 1 14 to rotate, at this time, the bevel gear 1 14 drives the two bevel gears 2 15 to rotate, and when the bevel gear 2 15 rotates, it will drive the bevel gear 3 1 below 6 rotates, and the bevel gear 3 16 drives the connecting sleeve 17 to rotate. The multiple stirring rods 18 located on the connecting sleeve 17 rotate with the connecting sleeve 17, and mix and stir the raw materials at the middle position of the inner cavity of the kettle body 1. The reaction temperature of the inner cavity of the kettle body 1 can be obtained through the temperature sensor 6. After a certain period of sufficient reaction, the solution begins to crystallize. In order to improve the crystallization efficiency, circulating water is input from the circulating water inlet 4, and the circulating water is circulated in the circulating water channel 3 and finally discharged from the circulating water outlet 5. In this process, the circulating water cools the kettle body 1, thereby accelerating the crystallization process of the raw materials in the inner cavity of the kettle body 1. After the crystallization reaction is completed, the discharge valve on the discharge pipe 27 is opened to discharge the crystal from the discharge pipe 27. It is worth adding that the inner cavity of the kettle body 1 is smooth, and the bottom of the kettle body 1 is a bucket-shaped structure, so as to avoid crystals hanging on the inner cavity wall of the kettle body 1 as much as possible;

[0055] When cleaning the inner cavity of the kettle body 1, start the water pump 21, the water pump 21 transports the water in the water tank 20 to the water pipe 22, and forms a high-pressure water column through multiple high-pressure nozzles 23. The high-pressure water column washes the inner wall of the kettle body 1, and cooperates with the action of multiple scrapers 13, so that the crystals still remaining on the inner wall of the kettle body 1 can be fully cleaned; when replenishing water for the water tank 20, it is only necessary to open the plug 25 upwards and inject water into the water tank 20 through the water filling pipe 24.

[0056] By setting a transmission component and using bevel gear 14, bevel gear 2 15 and bevel gear 3 16 for transmission, the rotation directions of the cross frame 12 and the connecting sleeve 17 are opposite, that is, the rotation directions of the multiple round rods 19 located on the inner side of the scraper 13 are opposite to the multiple stirring blades on the stirring rod 18, so that the raw materials at various positions in the inner cavity of the kettle body 1 can be fully stirred, avoiding concentration differences due to insufficient stirring of raw materials at different positions, thereby affecting the crystallization reaction and improving the crystallization efficiency of the device; by setting a spray component and a scraper 13, the water in the water tank 20 is transported to the water pipe 22 by a water pump 21, and the inner wall of the kettle body 1 is washed under the action of multiple high-pressure nozzles 23, so that the multiple scrapers 13 can clean the inner wall of the kettle body 1 more fully, thereby improving the self-cleaning ability of the device and reducing the adverse effects of the residue on the inner wall of the kettle body 1 on subsequent use.

[0057] Embodiment 2:

[0058] The present embodiment provides a chemical production crystallization kettle, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: protective covers 26 are provided on the outer sides of the first gear 8 and the second gear 10 and the outer sides of bevel gear 1 14, bevel gear 2 15 and bevel gear 3 16; the protective covers 26 located on the outer sides of the first gear 8 and the second gear 10 are in the shape of a rectangular frame and are fixed to the lower surface of the upper cover 2; the protective covers 26 located on the outer sides of bevel gear 1 14, bevel gear 2 15 and bevel gear 3 16 are in the shape of a circular tube and are fixed to the cross bar end of the fixing frame 9.

[0059] Among them, by providing the protective cover 26, a good protective effect is played on the first gear 8 and the second gear 10 as well as the bevel gear 1 14, the bevel gear 2 15 and the bevel gear 3 16, thereby improving the service life of the device.

[0060] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A chemical production crystallization kettle, characterized in that: include: A kettle body (1), a top cover (2) is fixed on the top of the kettle body (1), a circulating water channel (3) in the shape of a threaded circular tube is provided on the kettle body (1), a circulating water inlet (4) is fixed on the outer wall of the kettle body (1) and located at the upper end opening of the circulating water channel (3), a circulating water outlet (5) is fixed on the outer wall of the kettle body (1) and located at the lower end opening of the circulating water channel (3), and a temperature sensor (6) is installed on the lower surface of the top cover (2); A stirring mechanism, the stirring mechanism is located in the inner cavity of the kettle body (1) and is used to fully stir the mixed raw materials in the kettle body (1), the stirring mechanism comprising a transmission component, a scraping component and a stirring component; A spray assembly, the spray assembly being arranged on the kettle body (1) and used to spray water on the inner cavity surface wall of the kettle body (1) and cooperate with the scraper assembly to clean the inner cavity of the kettle body (1); A discharge pipe (27) is installed at the bottom center of the kettle body (1) and is used to discharge the material in the inner cavity of the kettle body (1).

2. A chemical production crystallization kettle according to claim 1, characterized in that, The transmission assembly comprises: A motor (7), wherein the motor (7) is fixedly mounted on the upper surface of the upper cover (2), and an output shaft of the motor (7) passes through the upper surface of the upper cover (2) and extends to the inner cavity of the kettle body (1), a first gear (8) is fixed to the bottom end of the output shaft of the motor (7), a fixing frame (9) fixed to the lower surface of the upper cover (2) is arranged on the circumference of the first gear (8), and the fixing frame (9) is in a cross-shaped structure, a second gear (10) is rotatably mounted on the fixing frame (9), and a connecting column (11) rotatably connected to the fixing frame (9) is fixed to the lower surface of the second gear (10), and the connecting column (11) A cross frame (12) rotatably connected to a fixed frame (9) is fixed at the bottom end of the cross frame (12), a bevel gear 1 (14) rotatably connected to the fixed frame (9) is arranged on the lower surface of the cross frame (12), a bevel gear 3 (16) rotatably connected to the fixed frame (9) is arranged directly below the bevel gear 1 (14), a bevel gear 2 (15) symmetrically arranged between the bevel gear 1 (14) and the bevel gear 3 (16), and the upper and lower ends of the bevel gear 2 (15) are respectively meshed with the bevel gear 1 (14) and the bevel gear 3 (16), and the bevel gear 2 (15) is rotatably matched with the cross bar end of the fixed frame (9).

3. A chemical production crystallization kettle according to claim 1, characterized in that, The scraper assembly comprises: Four scrapers (13) are respectively fixedly mounted on one end of the cross frame (12) away from the connecting column (11), and the outer wall of the scraper (13) is in contact with the inner wall of the kettle body (1).

4. A chemical production crystallization kettle according to claim 3, characterized in that, The stirring assembly comprises: A connecting sleeve (17) is fixedly mounted on the lower surface of the bevel gear three (16) and is rotatably connected to the fixing frame (9). A plurality of inverted L-shaped stirring rods (18) are fixed to the circumferential side wall of the connecting sleeve (17).

5. A chemical production crystallization kettle according to claim 4, characterized in that, The stirring assembly also includes: A plurality of round rods (19) are evenly distributed and respectively fixedly mounted on the inner side wall of the scraper (13); the plurality of round rods (19) are respectively arranged in a staggered manner with the plurality of stirring blades on the stirring rod (18).

6. A chemical production crystallization kettle according to claim 1, characterized in that, The spray assembly comprises: A water tank (20) is fixedly mounted on the upper surface of the upper cover (2), a water pump (21) is installed in the water tank (20), a ring-shaped water delivery pipe (22) is arranged on the upper part of the inner cavity of the kettle body (1), and the water inlet end of the water delivery pipe (22) passes through the lower surface of the upper cover (2) and extends into the water tank (20) to be fixed to the output end of the water pump (21), a plurality of high-pressure nozzles (23) distributed at equal intervals in a circle are fixed on the lower surface of the ring-shaped part of the water delivery pipe (22), a water supply pipe (24) is arranged on the upper surface of the water tank (20), and a plug (25) is installed at the opening of the water supply pipe (24).

7. A chemical production crystallization kettle according to claim 2, characterized in that, Protective covers (26) are provided on the outer sides of the first gear (8) and the second gear (10) and the outer sides of the bevel gear one (14), the bevel gear two (15) and the bevel gear three (16); the protective covers (26) located on the outer sides of the first gear (8) and the second gear (10) are in the shape of a rectangular frame and are fixed to the lower surface of the upper cover (2); the protective covers (26) located on the outer sides of the bevel gear one (14), the bevel gear two (15) and the bevel gear three (16) are in the shape of a circular tube and are fixed to the crossbar end of the fixing frame (9).

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