DTB crystallizer for preparing uniform particle sodium triazole and preparation process

Abstract

The invention provides a DTB crystallizer for preparing uniform particle sodium triazole and a preparation process, and relates to the technical field of sodium triazole preparation.The DTB crystallizer comprises a tank body, a cylinder baffle is arranged at the top of the tank body, the lower end of the cylinder baffle extends into the tank body, a guide cylinder is arranged in the cylinder baffle, and a rotating shaft is arranged in the guide cylinder; a liquid inlet pipe is arranged at the center of the bottom of the tank body, the upper end of the liquid inlet pipe extends into the guide cylinder and is in sealed rotating connection with the lower end of the rotating shaft, a feed liquid flow channel is arranged in the rotating shaft, the lower end of the feed liquid flow channel is communicated with the upper end of the liquid inlet pipe, and a liquid outlet hole is formed in the outer wall of the rotating shaft and is communicated with the feed liquid flow channel. According to the preparation device, high-temperature prepared feed liquid flows into the feed liquid flow channel through the liquid inlet pipe and flows into the guide cylinder through the liquid outlet holes, the high-temperature prepared feed liquid and the feed liquid in the guide cylinder are fully mixed and rise along the guide cylinder under the action of the propeller, the utilization rate of the high-temperature prepared feed liquid is increased, and the preparation efficiency of the triazole sodium crystal is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sodium triazole preparation, and particularly relates to a DTB crystallizer and a preparation process for preparing uniform particle sodium triazole. Background Art

[0002] The DTB crystallizer belongs to a typical internal circulation crystallizer of crystal slurry. Since an internal draft tube is arranged in the crystallizer, a circulation channel is formed, enabling the crystal slurry to have good mixing conditions.

[0003] A Chinese patent with the authorization announcement number CN218833621U, a DTB crystallizer, belongs to the technical field of crystallization equipment, and includes a first cylinder, a second cylinder, a draft tube, and a connection mechanism; the bottom of the first cylinder is open, and the top has a steam outlet; the top of the second cylinder is open, and the bottom has a crystal outlet and a feed liquid inlet; the open end of the second cylinder is inserted and matched with the open end of the first cylinder, and the open end of the first cylinder extends into the second cylinder and forms an annular baffle; the draft tube is arranged in the second cylinder and is detachably connected to the first cylinder; the connection mechanism is arranged on the outer wall at the connection of the first cylinder and the second cylinder for axially limiting the first cylinder and the second cylinder; the connection mechanism includes a sealing member suitable for sealing the connection of the first cylinder and the second cylinder. By connecting the first cylinder and the second cylinder through the connection mechanism, it is convenient to disassemble the first cylinder and the second cylinder, and then it is convenient to clean the draft tube and the annular baffle, reducing cleaning dead corners.

[0004] However, in the above DTB crystallizer, after the high-temperature feed liquid enters from the feed liquid inlet, it will mix with the feed liquid at the bottom of the crystallizer to form a mixed feed liquid, and only part of the mixed feed liquid will rise along the draft tube and evaporate, resulting in a low utilization rate of the high-temperature feed liquid and reducing the preparation efficiency of sodium triazole crystals. Summary of the Invention

[0005] The present invention provides a DTB crystallizer and a preparation process for preparing uniform particle sodium triazole to solve the technical problem that the utilization rate of high-temperature feed liquid in the current DTB crystallizer is relatively low, reducing the preparation efficiency of sodium triazole crystals.

[0006] To solve the above technical problems, the present invention discloses a DTB crystallizer for preparing uniform granular sodium triazole, comprising: a tank body, a cylindrical baffle is arranged at the top of the tank body, the lower end of the cylindrical baffle extends into the tank body, the lower end of the cylindrical baffle is communicated with the inside of the tank body through an opening, a draft tube is arranged inside the cylindrical baffle, the draft tube is connected with the cylindrical baffle through a connecting component, a rotating shaft is arranged inside the draft tube, the upper end of the rotating shaft extends outside the cylindrical baffle and is connected with the output end of a driving motor, a propeller is arranged near the lower end of the rotating shaft, a liquid inlet pipe is arranged at the center of the bottom of the tank body, the upper end of the liquid inlet pipe extends into the draft tube and is hermetically and rotationally connected with the lower end of the rotating shaft, a liquid flow channel is arranged inside the rotating shaft, the lower end of the liquid flow channel is communicated with the upper end of the liquid inlet pipe, liquid outlet holes are arranged on the outer wall of the rotating shaft, and the liquid outlet holes are communicated with the liquid flow channel.

[0007] Preferably, the connecting component includes a plurality of connecting rods, the plurality of connecting rods are equally spaced on the outer periphery of the draft tube, one end of the connecting rod is connected with the outer wall of the draft tube, and the other end of the connecting rod is connected with the inner wall of the cylindrical baffle.

[0008] Preferably, a discharge pipe is arranged at the lower end of the tank body.

[0009] Preferably, a circulation component is arranged outside the tank body, the circulation component includes a heater, a circulation pipe and a circulation pump, one end of the circulation pipe is connected with the side wall of the upper end of the tank body, the other end of the circulation pipe is connected with the input end of the heater, the circulation pump is arranged on the circulation pipe, and the output end of the heater is connected with the end of the liquid inlet pipe far from the rotating shaft.

[0010] Preferably, the liquid outlet holes are located above the propeller.

[0011] Preferably, stirring plates are arranged at the liquid outlet holes, cavities are arranged inside the stirring plates, one end of the cavity is communicated with the liquid flow channel through the liquid outlet holes, a plurality of through holes are arranged at the upper end of the stirring plates, the lower ends of the through holes are communicated with the cavities, and the upper ends of the through holes are communicated with the inside of the draft tube.

[0012] Preferably, a diffuser is arranged at the upper end of the draft tube, the diffuser is in a horn shape, and the diameter of the upper end of the diffuser is larger than the diameter of the lower end of the diffuser.

[0013] Preferably, a flow dividing plate is arranged inside the diffuser, and a plurality of dispersing holes are arranged inside the flow dividing plate.

[0014] Preferably, a dispersing component is arranged inside the dispersing holes, the dispersing component includes a mounting frame, the mounting frame is arranged inside the dispersing holes, a rotating shaft is rotatably arranged at the center of the mounting frame, blades are arranged at the lower end of the rotating shaft, the upper end of the rotating shaft extends above the dispersing holes and a rolling ball is arranged, a dispersing baffle is arranged above the rolling ball, the bottom area of the dispersing baffle is larger than the cross-sectional area of the upper end of the dispersing holes, a connecting column is arranged at the center of the bottom of the dispersing baffle, a connecting hole is arranged at the lower end of the connecting column, the connecting hole is adapted to the outer wall of the rolling ball, and the connecting column is connected with the rolling ball through the connecting hole.

[0015] A preparation process for preparing uniform granular sodium triazole uses the above-mentioned DTB crystallizer for preparing uniform granular sodium triazole to prepare sodium triazole, including:

[0016] The prepared feed liquid flows into the feed liquid flow channel through the feed pipe and flows into the draft tube through the liquid outlet holes. Driven by the propeller, the prepared feed liquid flows upward along the draft tube.

[0017] The prepared feed liquid flows out from the upper end of the draft tube and flows downward between the draft tube and the cylindrical baffle.

[0018] Part of the prepared feed liquid flows back from the lower end of the draft tube to the draft tube for circulating flow. The sodium triazole particles gradually grow during the circulating flow to obtain uniform granular sodium triazole crystals.

[0019] The technical solution of the present invention has the following advantages: The present invention provides a DTB crystallizer and a preparation process for preparing uniform granular sodium triazole, which relates to the technical field of sodium triazole preparation. The DTB crystallizer includes a tank body. A cylindrical baffle is arranged at the top of the tank body. The lower end of the cylindrical baffle extends into the tank body. The lower end of the cylindrical baffle is communicated with the inside of the tank body through an opening. A draft tube is arranged inside the cylindrical baffle. The draft tube is connected to the cylindrical baffle through a connecting component. A rotating shaft is arranged inside the draft tube. The upper end of the rotating shaft extends outside the cylindrical baffle and is connected to the output end of the driving motor. A propeller is arranged at a position close to the lower end of the rotating shaft. A feed pipe is arranged at the center of the bottom of the tank body. The upper end of the feed pipe extends into the draft tube and is hermetically and rotationally connected to the lower end of the rotating shaft. A feed liquid flow channel is arranged inside the rotating shaft. The lower end of the feed liquid flow channel is communicated with the upper end of the feed pipe. Liquid outlet holes are arranged on the outer wall of the rotating shaft. The liquid outlet holes are communicated with the feed liquid flow channel. In the present invention, the high-temperature prepared feed liquid first flows into the feed liquid flow channel through the feed pipe, and then flows into the draft tube through the liquid outlet holes. The high-temperature prepared feed liquid is mixed with the feed liquid in the draft tube and flows upward along the draft tube under the action of the propeller, improving the utilization rate of the high-temperature prepared feed liquid and enhancing the preparation efficiency of sodium triazole crystals.

[0020] Other features and advantages of the present invention will be described in the following specification, and, in part, will be obvious from the specification, or will be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained by the devices specifically pointed out in the written specification and the drawings of the specification.

[0021] Next, through the drawings and embodiments, the technical solution of the present invention will be further described in detail. Description of the Drawings

[0022] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0023] Figure 1Schematic diagram of the overall structure of a DTB crystallizer for preparing uniform granular sodium triazole according to the present invention;

[0024] Figure 2 According to the present invention Figure 1 Enlarged schematic diagram of the structure at position A in the present invention;

[0025] Figure 3 According to the present invention Figure 1 Enlarged schematic diagram of the structure at position B in the present invention;

[0026] Figure 4 Top view of the flow dividing plate in the present invention;

[0027] Figure 5 According to the present invention Figure 4 Partial sectional view of the structure at C-C in the present invention;

[0028] Figure 6 According to the present invention Figure 5 Enlarged schematic diagram of the structure at position D in the present invention;

[0029] Figure 7 According to the present invention Figure 6 Enlarged schematic diagram of the structure at position E in the present invention.

[0030] In the figure: 1. Tank body; 2. Cylindrical baffle; 3. Draft tube; 4. Rotating shaft; 5. Driving motor; 6. Propeller; 7. Liquid inlet pipe; 8. Liquid flow channel; 9. Connecting rod; 10. Discharge pipe; 11. Heater; 12. Circulation pipe; 13. Circulation pump; 14. Stirring plate; 15. Cavity; 16. Through hole; 17. Diffusion tube; 18. Flow dividing plate; 19. Dispersion hole; 20. Mounting frame; 21. Rotating shaft; 22. Blade; 23. Rolling ball; 24. Dispersion baffle; 25. Connecting column; 26. Sealing cylinder; 27. Rotating block; 28. Driving rod; 29. First ball; 30. Second ball; 31. Return spring. Detailed implementation manners

[0031] The following is a description of the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0032] In addition, in the present invention, descriptions such as "first", "second", etc. are for descriptive purposes only, and do not particularly refer to the meaning of order or sequence, nor are they used to limit the present invention. They are merely used to distinguish components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] Embodiment 1

[0034] An embodiment of the present invention provides a DTB crystallizer for preparing uniform granular sodium triazole, as Figures 1-7 shown, including: a tank body 1, a cylindrical baffle 2 is arranged at the top of the tank body 1, the lower end of the cylindrical baffle 2 extends into the tank body 1, the lower end of the cylindrical baffle 2 is communicated with the inside of the tank body 1 through an opening, a draft tube 3 is arranged inside the cylindrical baffle 2, the draft tube 3 is connected to the cylindrical baffle 2 through a connecting component, a rotating shaft 4 is arranged inside the draft tube 3, the upper end of the rotating shaft 4 extends outside the cylindrical baffle 2 and is connected to the output end of a driving motor 5, a propeller 6 is arranged at a position near the lower end of the rotating shaft 4, a liquid inlet pipe 7 is arranged at the center of the bottom of the tank body 1, the upper end of the liquid inlet pipe 7 extends into the draft tube 3 and is hermetically and rotationally connected to the lower end of the rotating shaft 4, a liquid flow channel 8 is arranged inside the rotating shaft 4, the lower end of the liquid flow channel 8 is communicated with the upper end of the liquid inlet pipe 7, and liquid outlet holes are arranged on the outer wall of the rotating shaft 4, and the liquid outlet holes are communicated with the liquid flow channel 8;

[0035] The connecting component includes a plurality of connecting rods 9, the plurality of connecting rods 9 are evenly distributed on the outer periphery of the draft tube 3, one end of the connecting rod 9 is connected to the outer wall of the draft tube 3, and the other end of the connecting rod 9 is connected to the inner wall of the cylindrical baffle 2;

[0036] A discharge pipe 10 is arranged at the lower end of the tank body 1;

[0037] A circulation component is arranged outside the tank body 1, the circulation component includes a heater 11, a circulation pipe 12 and a circulation pump 13, one end of the circulation pipe 12 is connected to the side wall of the upper end of the tank body 1, the other end of the circulation pipe 12 is connected to the input end of the heater 11, the circulation pump 13 is arranged on the circulation pipe 12, and the output end of the heater 11 is connected to the end of the liquid inlet pipe 7 away from the rotating shaft 4;

[0038] The liquid outlet holes are located above the propeller 6.

[0039] The working principle and beneficial effects of the above technical solution are as follows: The high-temperature prepared liquid flows into the liquid flow channel 8 of the rotating shaft 4 through the liquid inlet pipe 7, and then flows out through the liquid outlet holes to be mixed with the liquid in the guide cylinder 3 to form a mixed liquid. The driving motor 5 at the upper end of the cylindrical baffle 2 drives the rotating shaft 4 to rotate, so that the propeller 6 rotates in the guide cylinder 3. The propeller 6 pushes the mixed liquid in the guide cylinder 3 to rise to the liquid surface. The mixed liquid evaporates, cools and crystallizes. The steam after the evaporation of the mixed liquid is discharged from the steam outlet at the upper end of the cylindrical baffle 2, and the crystals are pushed by the unevaporated mixed liquid to flow into the space between the cylindrical baffle 2 and the guide cylinder 3 and flow downward between the cylindrical baffle 2 and the guide cylinder 3. Part of the mixed liquid flows into the space between the tank body 1 and the cylindrical baffle 2 under the action of the circulating pump 13 and flows into the heater 11 from the circulating pipe 12. After being heated by the heater 11, it forms a high-temperature prepared liquid, and then the high-temperature prepared liquid flows into the liquid channel through the liquid inlet pipe 7. Another part of the mixed liquid flows back into the guide cylinder 3 under the action of the propeller 6 to form a circulating flow of the liquid. In the above solution, by directly introducing the high-temperature prepared liquid into the guide pipe, the heat loss caused by the mixing of the high-temperature prepared liquid and the liquid at the bottom of the tank body 1 can be reduced, and the high-temperature prepared liquid can be prevented from flowing back into the heater 11 from the circulating pipe 12, improving the utilization rate of the high-temperature prepared liquid, enhancing the preparation efficiency of the sodium triazole crystals. Moreover, the high-temperature preparation raw material is fully mixed with the liquid in the guide pipe, with high heat transfer efficiency, and can more accurately control the temperature of the mixed liquid in the guide pipe, ensuring the uniform growth of the sodium triazole crystals at an appropriate temperature, making the sodium triazole particles uniform and improving the preparation quality of the sodium triazole crystals.

[0040] Example 2

[0041] On the basis of the above Example 1, as Figure 1 、 Figure 3 shown, a stirring plate 14 is arranged at the liquid outlet hole. A cavity 15 is arranged inside the stirring plate 14. One end of the cavity 15 is communicated with the liquid flow channel 8 through the liquid outlet hole. A plurality of through holes 16 are arranged at the upper end of the stirring plate 14. The lower ends of the through holes 16 are communicated with the cavity 15, and the upper ends of the through holes 16 are communicated with the inside of the guide cylinder 3.

[0042] The working principle and beneficial effects of the above technical solution are as follows: The high-temperature prepared liquid flows into the cavity 15 of the stirring plate 14 through the liquid passage, and then flows upward through a plurality of through holes 16, which can shunt the high-temperature prepared liquid. The outflow of multiple prepared liquids increases the contact area between the high-temperature prepared liquid and the raw liquid in the draft tube 3, improves the mixing efficiency of the high-temperature prepared liquid and the liquid in the draft tube 3, reduces the mixing time, is conducive to heat transfer, and can also avoid the problem of excessive local temperature. At the same time, the rotation of the rotating shaft 4 drives the rotation of the stirring plate 14. The rotation of the stirring plate 14 can not only change the position of the through holes 16, thereby adjusting the outflow position of the high-temperature prepared liquid, so that the high-temperature prepared liquid is mixed with the liquid in different regions, but also further stir the mixed liquid in the draft tube 3, making the high-temperature prepared liquid and the liquid mix more evenly, achieving efficient mixing, thereby improving the uniformity of the temperature of the mixed liquid, making the supersaturated liquid evenly distributed, and being conducive to the uniform growth of sodium triazole crystals.

[0043] Example 3

[0044] On the basis of Example 1 or 2, as Figure 1 、 Figure 4 、 Figure 5 shown, a diffusion cylinder 17 is provided at the upper end of the draft tube 3. The diffusion cylinder 17 is in a horn shape, and the diameter of the upper end of the diffusion cylinder 17 is larger than the diameter of the lower end of the diffusion cylinder 17.

[0045] The working principle and beneficial effects of the above technical solution are as follows: When the mixed liquid passes through the diffusion cylinder 17, since the diffusion cylinder 17 is in a horn shape, it can expand the outflow area of the mixed liquid, thereby increasing the evaporation area of the mixed liquid and improving the preparation efficiency.

[0046] Example 4

[0047] On the basis of Example 3, as Figure 5 、 Figure 6 shown, a shunt plate 18 is provided in the diffusion cylinder 17, and a number of dispersion holes 19 are provided in the shunt plate 18;

[0048] A dispersion component is provided in the dispersion hole 19. The dispersion component includes a mounting frame 20. The mounting frame 20 is provided in the dispersion hole 19. A rotating shaft 21 is rotatably provided at the center of the mounting frame 20. A blade 22 is provided at the lower end of the rotating shaft 21. The upper end of the rotating shaft 21 extends above the dispersion hole 19 and a rolling ball 23 is provided. A dispersion baffle 24 is provided above the rolling ball 23. The bottom area of the dispersion baffle 24 is larger than the cross-sectional area of the upper end of the dispersion hole 19. A connecting column 25 is provided at the center of the bottom of the dispersion baffle 24. A connecting hole is provided at the lower end of the connecting column 25. The connecting hole is adapted to the outer wall of the rolling ball 23. The connecting column 25 is connected to the rolling ball 23 through the connecting hole.

[0049] The working principle and beneficial effects of the above technical solution are as follows: When the mixed material liquid reaches the diversion plate 18, it can flow out through a plurality of dispersion holes 19 to the outside of the diffusion cylinder 17, and then evaporate and crystallize at the liquid surface. When the mixed material liquid flows through the dispersion holes 19, it can drive the blades 22 to rotate, thereby driving the rotation of the rotating shaft 21. Then, when the mixed material liquid reaches the dispersion baffle 24, the dispersion baffle 24 can block the continuous upward flow of the mixed material liquid, and disperse the mixed material liquid through the blockage of the dispersion baffle 24, so that the flow direction of the mixed material liquid is changed, from upward flow to diffusion in all directions, which is beneficial to expanding the evaporation area of the mixed material liquid and further improving the preparation efficiency of sodium triazole crystals.

[0050] Example 5

[0051] On the basis of Example 4, as Figure 6 , Figure 7 shown, a sealing cylinder 26 is arranged on the lower surface of the mounting frame 20. The upper and lower ends of the sealing cylinder 26 are respectively and rotationally connected to the rotating shaft 21 in a sealed manner. A rotating block 27 is arranged in the sealing cylinder 26. The center of the rotating block 27 is fixedly connected to the outer wall of the rotating shaft 21. An inclined surface is arranged at the upper end of the rotating block 27. Driving rods 28 are symmetrically arranged on the left and right sides of the rotating shaft 21. The upper ends of the driving rods 28 extend below the dispersion baffle 24 and are provided with first balls 29. The first balls 29 are in contact with the lower surface of the dispersion baffle 24. The lower ends of the driving rods 28 extend into the sealing cylinder 26 and are provided with second balls 30. The second balls 30 are in contact with the upper surface of the rotating block 27. The driving rods 28 are connected to the mounting frame 20 and the upper end of the sealing cylinder 26 in a vertically sliding manner. A return spring 31 is sleeved outside the driving rods 28. One end of the return spring 31 is connected to the inner wall of the sealing cylinder 26, and the other end of the return spring 31 is connected to the outer wall of the driving rods 28.

[0052] The working principle and beneficial effects of the above technical solution are as follows: During the preparation process, if the crystallization conditions are not well controlled (including uneven temperature and uneven contact between the feed liquid and suspended particles), it will lead to uneven preparation of sodium triazole crystals. Some of the prepared sodium triazole crystals are in the form of small particles or powders. The powdered sodium triazole crystals are easily carried out of the dryer by the drying gas during subsequent drying, resulting in waste. Moreover, the amount carried out is very large and needs to be collected for secondary crystallization, wasting energy and having a low one-time yield. Based on this, the present application provides a dispersion component that can make the feed liquid and suspended particles fully contact. Specifically, the rotation of the rotating shaft 21 in the dispersion component can drive the rotating block 27 to rotate in the sealing cylinder 26. When the rotating block 27 rotates, under the action of the return spring 31, the second ball 30 at the lower end of the driving rod 28 can roll along the upper surface of the rotating block 27. Since the upper surface of the rotating block 27 is an inclined surface, the rotating block 27 can drive the driving rods 28 on both sides to alternately perform up and down reciprocating motions when it rotates. Preferably, the driving rod 28 can be selected as a telescopic rod. When the driving rod 28 performs up and down reciprocating motions, the first ball 29 rolls along the lower surface of the dispersion baffle 24, thereby driving the dispersion baffle 24 to swing alternately, which can change the outflow amount of the mixed feed liquid in different directions, making the mixed feed liquid flowing out of the diversion cylinder 3 further spread to different positions on the liquid surface. This not only further increases the evaporation crystallization area but also makes the internal temperature more uniform. At the same time, it can also achieve full contact with the suspended particles in different regions, so as to deposit and grow on the surface of the suspended particles, reduce the generation of powdered sodium triazole crystals, improve the preparation efficiency and quality of sodium triazole crystals. Under the swing of the dispersion baffle 24, part of the mixed feed liquid can flow out obliquely upward. The mixed feed liquid flowing out obliquely upward is beneficial to the suspension of the crystal slurry and facilitates the nucleation and growth of crystals.

[0053] The present invention also discloses a preparation process for preparing uniform particle sodium triazole. Using the above DTB crystallizer for preparing uniform particle sodium triazole to prepare sodium triazole, it includes:

[0054] The prepared feed liquid flows into the feed liquid flow channel 8 through the feed pipe 7 and flows into the diversion cylinder 3 through the liquid outlet hole. Driven by the propeller 6, the prepared feed liquid flows upward along the diversion cylinder 3;

[0055] The prepared feed liquid flows out from the upper end of the diversion cylinder 3 and flows downward between the diversion cylinder 3 and the cylindrical baffle 2;

[0056] Part of the prepared feed liquid flows back from the lower end of the diversion cylinder 3 to the diversion cylinder 3 for circulating flow. The sodium triazole particles gradually grow during the circulating flow to obtain uniform particle sodium triazole crystals.

[0057] By adopting the above preparation process, the high-temperature preparation liquid can be directly introduced into the diversion pipe, reducing the heat loss caused by the mixing of the high-temperature preparation liquid and the liquid at the bottom of the tank body 1, preventing the high-temperature preparation liquid from flowing back into the heater 11 through the circulation pipe 12, improving the utilization rate of the high-temperature preparation liquid, enhancing the preparation efficiency of the sodium triazole crystal. Moreover, the high-temperature preparation raw material is fully mixed with the liquid in the diversion pipe, with high heat transfer efficiency, and can more accurately control the temperature of the mixed liquid in the diversion pipe, ensuring the uniform growth of the sodium triazole crystal at an appropriate temperature, making the sodium triazole particles uniform and improving the preparation quality of the sodium triazole crystal.

[0058] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0059] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] Although the embodiments of the present invention have been disclosed above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the examples shown and described here.

Claims

1. A DTB crystallizer for preparing uniform granular sodium triazole, characterized in that, Comprising: A tank body (1), a cylindrical baffle (2) is arranged at the top of the tank body (1), the lower end of the cylindrical baffle (2) extends into the tank body (1), the lower end of the cylindrical baffle (2) is communicated with the inside of the tank body (1) through an opening, a draft tube (3) is arranged inside the cylindrical baffle (2), the draft tube (3) is connected with the cylindrical baffle (2) through a connecting component, a rotating shaft (4) is arranged inside the draft tube (3), the upper end of the rotating shaft (4) extends outside the cylindrical baffle (2) and is connected with the output end of a driving motor (5), a propeller (6) is arranged at a position near the lower end of the rotating shaft (4), a liquid inlet pipe (7) is arranged at the center of the bottom of the tank body (1), the upper end of the liquid inlet pipe (7) extends into the draft tube (3) and is hermetically and rotationally connected with the lower end of the rotating shaft (4), a liquid flow channel (8) is arranged inside the rotating shaft (4), the lower end of the liquid flow channel (8) is communicated with the upper end of the liquid inlet pipe (7), and liquid outlet holes are arranged on the outer wall of the rotating shaft (4), and the liquid outlet holes are communicated with the liquid flow channel (8).

2. The DTB crystallizer for preparing uniform granular sodium triazole according to claim 1, wherein, The connecting component comprises a plurality of connecting rods (9), the plurality of connecting rods (9) are equally spaced on the outer periphery of the draft tube (3), one end of the connecting rod (9) is connected with the outer wall of the draft tube (3), and the other end of the connecting rod (9) is connected with the inner wall of the cylindrical baffle (2).

3. The DTB crystallizer for preparing uniform granular sodium triazole according to claim 1, characterized in that, A discharge pipe (10) is arranged at the lower end of the tank body (1).

4. The DTB crystallizer for preparing uniform granular sodium triazole according to claim 1, wherein, A circulation component is arranged outside the tank body (1), the circulation component comprises a heater (11), a circulation pipe (12) and a circulation pump (13), one end of the circulation pipe (12) is connected with the side wall of the upper end of the tank body (1), the other end of the circulation pipe (12) is connected with the input end of the heater (11), the circulation pump (13) is arranged on the circulation pipe (12), and the output end of the heater (11) is connected with one end of the liquid inlet pipe (7) far away from the rotating shaft (4).

5. A DTB crystallizer for preparing uniform granular sodium triazole according to claim 1, characterized in that, The liquid outlet holes are located above the propeller (6).

6. The DTB crystallizer for preparing uniform granular sodium triazole according to claim 1, characterized in that, Agitating plates (14) are arranged at the liquid outlet holes, a cavity (15) is arranged inside the agitating plate (14), one end of the cavity (15) is communicated with the liquid flow channel (8) through the liquid outlet holes, a plurality of through holes (16) are arranged at the upper end of the agitating plate (14), the lower ends of the through holes (16) are communicated with the cavity (15), and the upper ends of the through holes (16) are communicated with the inside of the draft tube (3).

7. The DTB crystallizer for preparing uniform granular sodium triazole according to claim 1, characterized in that, A diffuser tube (17) is arranged at the upper end of the draft tube (3), the diffuser tube (17) is in a horn shape, and the diameter of the upper end of the diffuser tube (17) is larger than the diameter of the lower end of the diffuser tube (17).

8. The DTB crystallizer for preparing uniform granular sodium triazole according to claim 7, characterized in that, A flow dividing disc (18) is arranged inside the diffuser tube (17), and a plurality of dispersion holes (19) are arranged inside the flow dividing disc (18).

9. The DTB crystallizer for preparing uniform granular sodium triazole according to claim 8, characterized in that, Dispersion components are arranged inside the dispersion holes (19), each dispersion component comprises a mounting frame (20), the mounting frame (20) is arranged inside the dispersion hole (19), a rotating shaft (21) is rotatably arranged at the center of the mounting frame (20), blades (22) are arranged at the lower end of the rotating shaft (21), the upper end of the rotating shaft (21) extends above the dispersion hole (19) and a rolling ball (23) is arranged, a dispersion baffle (24) is arranged above the rolling ball (23), the bottom area of the dispersion baffle (24) is larger than the upper cross-sectional area of the dispersion hole (19), a connecting column (25) is arranged at the center of the bottom of the dispersion baffle (24), a connecting hole is arranged at the lower end of the connecting column (25), the connecting hole is adapted to the outer wall of the rolling ball (23), and the connecting column (25) is connected with the rolling ball (23) through the connecting hole.

10. A preparation process for preparing uniform granular sodium triazole uses a DTB crystallizer for preparing uniform granular sodium triazole as described in any one of claims 1-9 to prepare sodium triazole, characterized in that, Comprising: The prepared feed liquid flows into the feed liquid flow channel (8) through the feed pipe (7), and flows into the draft tube (3) through the liquid outlet holes. Driven by the propeller (6), the prepared feed liquid flows upward along the draft tube (3); The prepared feed liquid flows out from the upper end of the draft tube (3) and flows downward between the draft tube (3) and the cylindrical baffle (2); Part of the prepared feed liquid flows back from the lower end of the draft tube (3) to the draft tube (3) for circulating flow. The sodium triazole particles gradually grow during the circulating flow, and sodium triazole crystals with uniform particles are obtained.

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