A production device and method of sodium bromide

Abstract

The application relates to the technical field of crystallization, in particular to a sodium bromide production device and a production method thereof. The device comprises a base, the upper end surface of the base is fixedly connected with a shell, a crystallization mechanism comprises a crystallization box fixedly connected with the upper half portion in the shell, a cross partition plate is fixedly connected in the crystallization box, the cross partition plate divides the crystallization box into multiple crystallization zones with the same volume, one vibration guiding assembly, two resonance assemblies and one liquid level detector are arranged in each crystallization zone, and a flip cover is hingedly connected with the upper end surface of the crystallization box. Through the cross partition plate, the vibration guiding assembly and the resonance assembly in the crystallization mechanism, the sodium bromide waiting for crystallization in the crystallization box can be subjected to partitioned and uniform crystallization, the vibration wave can be transmitted to the detector by the vibration guiding assembly to master the crystallization condition, the uniformity and the quality of the sodium bromide crystallization can be improved, and the uniformity and the efficiency of the crystallization process can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of crystallization technology, and specifically to a sodium bromide production apparatus and production method. Background Technology

[0002] The sodium bromide production unit is an integrated multi-functional unit that, through synergistic optimization of each unit, efficiently produces high-quality sodium bromide, overcoming the shortcomings of traditional processes and meeting the requirements of high efficiency, high quality, energy saving, environmental protection, and the needs of multiple industries. Specifically, the reaction unit uses a corrosion-resistant and well-stirred reactor to ensure the raw materials fully react to produce a sodium bromide solution; the evaporation unit optimizes the evaporator to achieve rapid solution concentration and steam recovery; the crystallization unit uses an advanced crystallizer to control supersaturation, promoting uniform crystal size and regular shape; the separation unit uses a high-efficiency centrifuge or filter to purify the crystals; and the drying unit uses suitable equipment to remove moisture to obtain a qualified finished product. The sodium sulfate crystallization technology disclosed in Chinese Patent Publication No. CN118634513B, with its optimized unit equipment and process approach, can also provide a reference for the design of this unit.

[0003] In existing sodium bromide production equipment, sodium bromide is usually crystallized uniformly in the same crystallization unit (crystallization box) during crystallization. This results in sodium bromide near the evaporation unit (steam heater) crystallizing faster (early crystallization) and sodium bromide far from the evaporation unit crystallizing slower (delayed crystallization), thus causing inconsistency in crystallization speed. Crystals formed rapidly near the evaporation unit tend to contain more impurities due to the rapid crystallization process, resulting in lower crystal purity. In contrast, sodium bromide crystallizes slowly away from the evaporation unit, creating a different crystal growth environment. Consequently, the crystal size, shape, and internal structure vary, making it difficult to meet uniform high-quality product standards. This affects the stability and uniformity of key quality indicators such as purity and particle size distribution in sodium bromide products. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a sodium bromide production apparatus and production method, which can effectively solve the problem that sodium bromide in the prior art usually crystallizes uniformly in the same crystallization unit, resulting in sodium bromide near the evaporation unit crystallizing quickly and sodium bromide far from the evaporation unit crystallizing slowly, thus causing inconsistent crystallization speed.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a sodium bromide production apparatus, comprising: A base, the upper end face of which is fixedly connected to a housing; A crystallization mechanism includes a crystallization box fixedly connected to the upper part of the outer shell. A cross-shaped partition plate is fixedly connected inside the crystallization box, dividing the crystallization box into multiple crystallization zones of equal volume. Each crystallization zone is provided with a vibration guide component, two resonance components, and a liquid level detector. A flip cover is hinged to the upper end face of the crystallization box. A first flow divider and multiple vibration wave detectors are fixedly connected to the upper end face of the flip cover, and the vibration wave detectors correspond to the vibration guide component. The heating mechanism includes a second distributor fixedly connected to the bottom of the lower half of the housing. Multiple pressure regulating valves corresponding to the number and position of the crystallization zones are fixedly connected in a rectangular array around the second distributor at the bottom of the housing. Multiple steam heating boxes corresponding to the crystallization zones are fixedly connected to the bottom of the crystallization box. Each steam heating box is equipped with two steam guiding components, one steam spraying component, and one steam flow limiting component. A vibration mechanism, wherein multiple vibration mechanisms are disposed on the side of the outer shell corresponding to the crystallization region; The upper surface of the base is provided with a steam generator that provides steam for the heating mechanism and the vibration mechanism.

[0006] Preferably, the vibration guiding assembly includes elastic rods fixedly connected to the top two sides of the crystallization zone, the body of the elastic rods being fixedly connected to a vibration guiding rod extending into the crystallization zone, and the top of the vibration guiding rod being fixedly connected to a sub-connector. The resonant assembly includes fixed rods fixedly connected to the top two sides of the crystallization zone. Resonant rods are fixedly connected to the outer walls of the fixed rods and extend into the crystallization zone. Each resonant rod is composed of multiple linear arrays of Hertz resonant spheres fixedly connected to each other. The liquid level detector is fixedly connected to the top wall inside the crystallization zone. The bottom of the flip cover is fixedly connected to multiple female connectors corresponding to the vibration wave detector. The probe of the vibration wave detector passes through the flip cover and contacts the female connector at the corresponding position.

[0007] Preferably, the second diverter has one input end and multiple output ends. The number of output ends of the second diverter is the same as the number of pressure regulating valves, and each output end of the second diverter is connected to the input end of the pressure regulating valve through a pipe. The bottom of the steam heating box is fixedly connected to two water guide pipes, and the side of the outer shell is fixedly connected to multiple drainers corresponding to the number and position of the crystallization zone. The two water guide pipes pass through the crystallization box and the outer shell and are connected to the drainers at the corresponding positions. A perforated plate is fixedly connected to the middle of the steam heating box. The perforated plate divides the interior of the steam heating box into a steam zone and a discharge zone. A heat-conducting cover that contacts the crystallization box is fixedly connected to the upper end of the steam zone. The steam spraying assembly is located at the center of the bottom of the steam zone. The steam spraying assembly includes a spray box fixedly connected to the bottom of the steam zone, and the bottom of the spray box extends through the perforated plate into the discharge zone. The spray box is provided with two sets of inclined nozzles and one set of direct current nozzles from top to bottom. Each set of inclined nozzles and one set of direct current nozzles has multiple nozzles and is fixedly connected to the side of the spray box in a linear array.

[0008] Preferably, the two steam guiding components are symmetrically arranged inside the steam zone centered on the steam spraying component. The steam guiding component includes a fixed plate fixedly connected to the inner wall of the steam zone. The top of the fixed plate is linearly arrayed with multiple spiral fans, and each spiral fan corresponds to the position of two sets of inclined nozzles. The bottom of the fixed plate is linearly arrayed with multiple power fans corresponding to the spiral fans. The central axis of each spiral fan is fixedly connected to a rotating shaft, and the rotating shaft passes through the fixed plate and is fixedly connected to the central axis of the corresponding power fan.

[0009] Preferably, the interior of the discharge zone is fixedly connected to a protective cover corresponding to the position of the steam spraying component. Two arc-shaped plates are symmetrically arranged at the bottom of the discharge zone with the length direction of the protective cover as the center. Two breathable membrane pipes are symmetrically arranged at the bottom of the discharge zone with the width direction of the protective cover as the center. The sides of the breathable membrane pipes are fixedly connected to air intake pipes. The steam flow limiting component is located at the bottom of the spray box extending to the discharge area. The steam flow limiting component includes a compression box fixedly connected to the center of the bottom of the spray box. The output end of the compression box is connected to the spray box, and the input end of the spray box is fixedly connected to a delivery pipe. The end of the delivery pipe away from the compression box is connected to the output end of a pressure stabilizing valve at a corresponding position. Two mounting plates are symmetrically fixedly connected to the bottom of the spray box with the compression box as the center. An electrically controlled telescopic rod is fixedly connected to the side of each mounting plate facing the compression box. The telescopic end of the electrically controlled telescopic rod is fixedly connected to the side of the compression box.

[0010] Preferably, the vibration mechanism includes multiple concentrating hoods fixedly connected to the side of the outer shell in a linear array. Each concentrating hood is fixedly connected to a housing on the side away from the outer shell. A vent valve is fixedly connected to the upper end face of the housing. Inside the housing, there is a gas release assembly and two sets of vibrating plates symmetrically arranged around the gas release assembly. The gas release assembly includes a connecting seat fixedly connected to the center of the bottom of the housing. The top of the connecting seat is fixedly connected to a release pipe, and the bottom of the release pipe is fixedly connected to a connecting pipe. A T-connector is fixedly connected to the bottom of the housing. The connecting pipe passes through the housing and connects to one port of the T-connector. The other two ports of the T-connector are connected to two vent pipes.

[0011] Preferably, the release tube and the two sets of vibrating plates are provided with multiple release holes on both sides of the linear array, and the release tube is provided with multiple discharge structures corresponding to the release holes. The discharge structure includes two fans rotatably connected in symmetrical release holes on both sides. A power shaft is fixedly connected to the center of the opposite face of the two fans. Multiple fan blades are fixedly connected to the shaft of the power shaft in a ring array. A connecting pipe is fixedly connected to the top of the connecting seat, and the connecting pipe penetrates the housing.

[0012] Preferably, the steam generator includes a steam generator fixedly connected to the upper surface of the base, the output end of the steam generator is fixedly connected to a gas guide pipe, and the end of the gas guide pipe away from the steam generator is connected to the input end of the second distributor.

[0013] A method for producing sodium bromide includes: partitioned uniform crystallization of sodium bromide and temperature control of partitioned crystallization of sodium bromide, specifically including the following steps: Temperature control for zoned crystallization of sodium bromide: First, the steam generated by the steam generator is transmitted to the second distributor. Then, the second distributor further delivers the steam to the corresponding pressure regulating valve, thereby achieving uniform and stable transmission of steam to each steam flow limiting component. The steam flow limiting component can control the amount of steam delivered to the steam spraying component according to the crystallization of sodium bromide in the corresponding crystallization zone. The steam sprayed from the steam spraying component will be either direct or oblique. These two spray patterns are used to drive the steam guide component to rotate, which is beneficial for the steam to fully act on the sodium bromide in the corresponding crystallization zone. Uniform crystallization of sodium bromide in different zones: The crystallization chamber can be divided into multiple crystallization zones of uniform volume without interference by a cross-shaped partition plate. Each crystallization zone is equipped with a resonant component and a vibration guide component to transmit vibrations. Gas discharged from the steam heating chamber enters the vibration mechanism, causing it to vibrate. The resonant component collects and amplifies the vibration waves generated by the vibration mechanism, promoting uniform heating of the sodium bromide solution to achieve uniform crystallization. The vibration guide component collects the wave intensity transmitted by the resonant component in the sodium bromide solution, thereby determining the crystallization status of sodium bromide in the current crystallization zone.

[0014] The technical solution provided by this invention has the following advantages compared with the known prior art: 1. By using the cross-shaped partition plate, vibration guide component, and resonance component in the crystallization mechanism, sodium bromide awaiting crystallization in the crystallization box can be crystallized uniformly in different zones. The cross-shaped partition plate divides the crystallization box into multiple crystallization zones of equal volume, allowing sodium bromide, which would otherwise be uniformly contained in one crystallization box, to crystallize in multiple zones. Simultaneously, by setting resonance components in each crystallization zone, resonance occurs with the vibration mechanism, generating vibration waves to achieve uniform heating of sodium bromide in each crystallization zone. The vibration guide component transmits the vibration waves generated by the resonance between the resonance component and the vibration mechanism to the vibration wave detector, thereby determining the crystallization status of sodium bromide in each crystallization zone. By using the cross-shaped partition plate to divide multiple crystallization zones of equal volume, the unevenness of uniform crystallization is changed. The resonance components in each crystallization zone resonate with the vibration mechanism to generate vibration waves for uniform heating. The vibration guide component can also transmit the vibration waves to the detector to monitor the crystallization status. This improves the uniformity and quality of sodium bromide crystallization, effectively enhancing the uniformity and efficiency of the crystallization process and ensuring uniform crystallization of sodium bromide in each crystallization zone.

[0015] 2. The heating mechanism, comprising a steam heating box, steam guiding components, steam spraying components, and steam flow limiting components, enables the crystallization of sodium bromide in each crystallization zone. It also allows for temperature control of the current crystallization zone based on the crystallization status of sodium bromide in each zone. The steam heating box houses the steam guiding components, steam spraying components, and steam flow limiting components, preventing direct contact between steam and sodium bromide. The steam spraying components convert the steam from the steam generator into two spray modes: direct and oblique. Direct steam powers the rotation of the steam guiding components, while oblique steam changes its spray direction due to the rotation of the steam guiding components. The steam flow limiting components determine the crystallization status of sodium bromide in the current crystallization zone based on the vibration waves detected by the corresponding vibration wave detector, controlling the amount of steam supplied to the current crystallization zone. This achieves simultaneous and uniform crystallization of water vapor in each crystallization zone, preventing abnormal crystallization, improving production efficiency and resource utilization, and reducing the defect rate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram of the overall side structure of the present invention; Figure 3 This is a schematic diagram of the flip cover structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the crystallization mechanism of the present invention; Figure 5 This is a schematic diagram of the internal structure of the crystallization mechanism of the present invention in cross-section; Figure 6 This is a schematic diagram of the overall structure of the heating mechanism of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the heating mechanism of the present invention; Figure 8 This is a schematic diagram of the steam flow limiting component of the present invention; Figure 9 This is a schematic diagram of the overall structure of the vibration mechanism of the present invention; Figure 10 This is a schematic diagram of the cross-sectional structure of the vibration mechanism of the present invention; Figure 11 This is a schematic diagram of the emission structure of the present invention.

[0018] Reference numerals: 1. Base; 11. Outer shell; 2. Crystallization mechanism; 21. Crystallization box; 22. Cross-shaped partition plate; 23. Vibration guide assembly; 231. Elastic rod; 232. Vibration guide bar; 233. Sub-connector; 24. Resonance assembly; 241. Fixing rod; 242. Resonance bar; 25. Liquid level detector; 26. Flip cover; 27. First distributor; 28. Vibration wave detector; 281. Female connector; 3. Heating mechanism; 31. Second distributor; 32. Pressure regulating valve; 33. Steam heating box; 331. Water pipe; 332. Drainer; 34. Steam guiding assembly; 341. Fixing plate; 342. Spiral fan; 343. Power fan; 35. Steam spraying assembly; 351. Spraying box; 3 52. Inclined nozzle; 353. Direct current nozzle; 36. Perforated plate; 361. Protective cover; 37. Arc plate; 38. Breathable membrane pipe; 381. Air intake pipe; 39. Steam flow limiting component; 391. Mounting plate; 392. Electrically controlled telescopic rod; 393. Compression box; 394. Delivery pipe; 310. Heat-conducting cover; 4. Vibration mechanism; 41. Housing; 42. Vibration shroud; 43. Vent valve; 44. Vibrating plate; 45. Gas release component; 451. Release pipe; 452. Release hole; 453. Discharge structure; 4531. Power shaft; 4532. Fan blade; 4533. Fan; 454. Connecting seat; 455. Connecting pipe; 46. T-pipe; 5. Steam generator; 51. Air guide pipe. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] The present invention will be further described below with reference to embodiments.

[0021] Example: Refer to Figures 1 to 11 An apparatus for producing sodium bromide, comprising: Base 1, with outer shell 11 fixedly connected to the upper end face of base 1; The crystallization mechanism 2 includes a crystallization box 21 fixedly connected to the upper part of the outer shell 11. A cross partition plate 22 is fixedly connected inside the crystallization box 21, and the cross partition plate 22 divides the crystallization box 21 into multiple crystallization zones with the same volume. Each crystallization zone is provided with a vibration guide component 23, two resonance components 24 and a liquid level detector 25. A flip cover 26 is hinged to the upper end face of the crystallization box 21. A first diverter 27 and multiple vibration wave detectors 28 are fixedly connected to the upper end face of the flip cover 26, and the vibration wave detectors 28 correspond to the vibration guide component 23. Heating mechanism 3 includes a second diverter 31 fixedly connected to the bottom of the lower half of the housing 11. Multiple pressure regulating valves 32, corresponding to the number and position of crystallization zones, are fixedly connected in a rectangular array at the bottom of the housing 11 with the second diverter 31 as the center. Multiple steam heating boxes 33, corresponding to the crystallization zones, are fixedly connected to the bottom of the crystallization box 21. Each steam heating box 33 is provided with two steam guiding components 34, one steam spraying component 35, and one steam flow limiting component 39. Vibration mechanism 4, there are multiple vibration mechanisms 4, and multiple vibration mechanisms 4 are arranged on the side of the outer shell 11 corresponding to the crystallization region; The upper surface of the base 1 is provided with a steam generator 5 that provides steam to the heating mechanism 3 and the vibration mechanism 4.

[0022] The crystallization box 21 can be divided into multiple crystallization zones by using the cross-shaped partition plate 22 in the crystallization mechanism 2. A resonance component 24 and a vibration guide component 23 are set in each crystallization zone. The resonance component 24 can resonate with the vibration mechanism 4 of the corresponding crystallization zone, thereby generating vibration waves. The vibration waves are used to achieve uniform heating and crystallization in the crystallization zone. The steam generator 5 is used to provide water vapor for the sodium bromide crystallization in each crystallization zone and to the corresponding heating mechanism 3 of the crystallization zone (each crystallization zone has a heating mechanism 3). The steam flow limiting component 39 in the heating mechanism 3 can achieve different temperature control for each crystallization zone according to the crystallization of sodium bromide in each crystallization zone. The steam guiding component 34 and the steam spraying component 35 can control the spraying direction of water vapor in the steam heating box 33, so that the energy of water vapor is fully collected, thereby improving the utilization rate of water vapor.

[0023] Reference Figures 3 to 4 The vibration guiding assembly 23 includes elastic rods 231 fixedly connected to the top two sides of the crystallization zone. The body of the elastic rods 231 is fixedly connected to a vibration guiding rod 232 extending into the crystallization zone. The top of the vibration guiding rod 232 is fixedly connected to a sub-connector 233. The resonant assembly 24 includes a fixed rod 241 fixedly connected to the top two sides of the crystallization zone. A resonant rod 242 is fixedly connected to the outer wall of the fixed rod 241, and the resonant rod 242 extends into the crystallization zone. Each resonant rod 242 is composed of multiple linear arrays of Hertz resonant spheres fixedly connected to each other. The liquid level detector 25 is fixedly connected to the top wall inside the crystallization zone. The bottom of the flip cover 26 is fixedly connected to multiple female connectors 281 corresponding to the vibration wave detector 28. The probe of the vibration wave detector 28 passes through the flip cover 26 and contacts the female connector 281 at the corresponding position.

[0024] The vibration guide rod 232 in the vibration guide assembly 23 can resonate with the resonance assembly 24 and the vibration mechanism 4, resulting in synchronous vibration. As sodium bromide gradually crystallizes, the propagation efficiency of the vibration wave in the sodium bromide crystallization gradually decreases, thus reducing the vibration of the vibration guide rod 232. The vibration wave is transmitted from the vibration guide rod 232 to the vibration wave detector 28 by the female connector 281 of the vibration wave detector 28 and the female connector 233 of the vibration guide rod 232. This allows the detector to determine the crystallization status of sodium bromide in the current crystallization zone. Since the resonance rod 242 in the resonance assembly 24 is composed of Hertzian resonant spheres, it can receive and reflect the vibration waves propagated by the vibration mechanism 4, thereby achieving resonance between the vibration mechanism 4 and the resonance rod 242. This is beneficial for the subsequent heating mechanism 3 to control the temperature change of sodium bromide crystallization in the crystallization zone.

[0025] Reference Figures 5 to 8The second diverter 31 has one input end and multiple output ends. The number of output ends of the second diverter 31 is the same as the number of pressure regulating valves 32. Each output end of the second diverter 31 is connected to the input end of the pressure regulating valve 32 through a pipe. The bottom of the steam heating box 33 is fixedly connected to two water guide pipes 331. The side of the outer shell 11 is fixedly connected to multiple drainers 332 that correspond one-to-one with the number and position of the crystallization zone. The two water guide pipes 331 pass through the crystallization box 21, the outer shell 11 and are connected to the drainers 332 at the corresponding positions. A perforated plate 36 is fixedly connected to the middle of the steam heating box 33. The perforated plate 36 divides the interior of the steam heating box 33 into a steam zone and a discharge zone. A heat-conducting cover 310 that contacts the crystallization box 21 is fixedly connected to the upper end of the steam zone. The steam spraying assembly 35 is located at the center of the bottom of the steam zone. The steam spraying assembly 35 includes a spray box 351 fixedly connected to the bottom of the steam zone. The bottom of the spray box 351 extends through the perforated plate 36 into the discharge zone. The spray box 351 is provided with two sets of inclined nozzles 352 and one set of direct current nozzles 353 from top to bottom. Each set of inclined nozzles 352 and one set of direct current nozzles 353 has multiple nozzles and is fixedly connected to the side of the spray box 351 in a linear array.

[0026] The pressure regulating valve 32 can make the water vapor flow rate input to each steam flow limiting component 39 consistent, while the steam spraying component 35 can divide the transmitted water vapor into two different modes to achieve different effects on the steam guiding component 34.

[0027] Reference Figures 6 to 7 Two steam guiding components 34 are symmetrically arranged inside the steam zone centered on the steam spraying component 35. The steam guiding component 34 includes a fixed plate 341 fixedly connected to the inner wall of the steam zone. Multiple spiral fans 342 are rotatably connected to the top of the fixed plate 341 in a linear array, and each spiral fan 342 corresponds to the position of two sets of inclined nozzles 352. Multiple power fans 343 corresponding to the spiral fans 342 are rotatably connected to the bottom of the fixed plate 341 in a linear array. A rotating shaft is fixedly connected to the central axis of each spiral fan 342, and the rotating shaft passes through the fixed plate 341 and is fixedly connected to the central axis of the power fan 343 at the corresponding position.

[0028] By utilizing the direct injection mode of the two different water vapor injection modes in the steam spraying assembly 35, the power fan 343 in the steam guiding assembly 34 can be made to rotate. As the power fan 343 rotates, the spiral fan 342 also rotates. The spiral fan 342 can guide the water vapor in the oblique injection mode of the steam spraying assembly 35, thereby making the water vapor more concentrated and acting on the heat conduction cover 310.

[0029] Reference Figures 7 to 8The interior of the discharge zone is fixedly connected to a protective cover 361 corresponding to the position of the steam spraying component 35. Two arc-shaped plates 37 are symmetrically arranged at the bottom of the discharge zone with the length direction of the protective cover 361 as the center. Two breathable membrane pipes 38 are symmetrically arranged at the bottom of the discharge zone with the width direction of the protective cover 361 as the center. The sides of the breathable membrane pipes 38 are fixedly connected to air intake pipes 381. A steam flow limiting component 39 is installed at the bottom of the spray box 351 extending to the discharge area. The steam flow limiting component 39 includes a compression box 393 fixedly connected to the center of the bottom of the spray box 351. The output end of the compression box 393 is connected to the spray box 351. The input end of the spray box 351 is fixedly connected to a delivery pipe 394. The end of the delivery pipe 394 away from the compression box 393 is connected to the output end of the pressure regulating valve 32 at the corresponding position. Two mounting plates 391 are symmetrically fixedly connected to the bottom of the spray box 351 with the compression box 393 as the center. An electrically controlled telescopic rod 392 is fixedly connected to the side of each mounting plate 391 facing the compression box 393. The telescopic end of the electrically controlled telescopic rod 392 is fixedly connected to the side of the compression box 393.

[0030] The steam heating box 33 can be depressurized using the breathable membrane pipe 38. The breathable membrane pipe 38 only allows airflow and does not allow water droplets that have condensed after the water vapor cools to pass through. The airflow released through the breathable membrane pipe 38 acts on the vibration mechanism 4 through the air intake pipe 381. The arc plate 37 can guide the condensed water droplets, so that the water droplets are transferred to the drainer 332 through the water guide pipe 331, thereby realizing the discharge of condensed water droplets in the steam heating box 33. The electrically controlled telescopic rod 392 in the steam flow limiting component 39 can compress the compression box 393 according to the crystallization of sodium bromide in the corresponding crystallization zone detected by the vibration wave detector 28. This compression of the compression box 393 controls the amount of water vapor delivered by the compression box 393 to the steam spraying component 35.

[0031] Reference Figures 9 to 10 The vibration mechanism 4 includes multiple vibration-concentrating covers 42 fixedly connected to the side of the outer shell 11. Each vibration-concentrating cover 42 is fixedly connected to a housing 41 on the side away from the outer shell 11. A vent valve 43 is fixedly connected to the upper end face of the housing 41. A gas release component 45 and two sets of vibrating plates 44 are symmetrically arranged around the gas release component 45 inside the housing 41. The gas release component 45 includes a connecting seat 454 fixedly connected to the center of the bottom inside the housing 41. The top of the connecting seat 454 is fixedly connected to a release pipe 451. The bottom of the release pipe 451 is fixedly connected to a connecting pipe 455. A three-way pipe 46 is fixedly connected to the bottom of the housing 41. The connecting pipe 455 passes through the housing 41 and connects to one port of the three-way pipe 46. The other two ports of the three-way pipe 46 are connected to two air inlet pipes 381.

[0032] The gas flow transmitted by the gas inlet pipe 381 can be guided to the release pipe 451 in the gas release assembly 45 by the three-way pipe 46. The gas flow collides with the vibrating plate 44 through the release pipe 451, causing the vibrating plate 44 to vibrate. The vibration is transmitted to the corresponding crystallization zone through the vibration shroud 42, and the gas flow in the release pipe 451 is discharged through the vent valve 43.

[0033] Reference Figures 10 to 11 The linear array on both sides of the release tube 451 and the two sets of vibrating plates 44 are provided with multiple release holes 452, and the release tube 451 is provided with multiple discharge structures 453 corresponding to the release holes 452. The discharge structure 453 includes two fans 4533 rotatably connected in symmetrical release holes 452 on both sides. A power shaft 4531 is fixedly connected to the center of the opposite face of the two fans 4533. Multiple fan blades 4532 are fixedly connected to the shaft of the power shaft 4531 in a ring array. A connecting pipe 455 is fixedly connected to the top of the connecting seat 454. The connecting pipe 455 passes through the housing 41.

[0034] The airflow in the release pipe 451 is applied to the vibrating plate 44 through the discharge structure 453. The discharge structure 453 drives the fan blade 4532 to rotate through the airflow, thereby driving the fan 4533 to rotate, so that the airflow discharged from the release pipe 451 acts on the vibrating plate 44 in a spiral state.

[0035] Reference Figures 1 to 11 The steam generator 5 is fixedly connected to the upper surface of the base 1. The output end of the steam generator 5 is fixedly connected to the air guide pipe 51. The end of the air guide pipe 51 away from the steam generator 5 is connected to the input end of the second distributor 31.

[0036] Steam generator 5 can be used to pass water vapor to heating mechanism 3, and steam pipe 51 in steam generator 5 can transfer water vapor generated by steam generator 5 to second distributor 31.

[0037] The working principle of this invention is as follows: Step 1: Connect the first distributor 27 to the previous process of the equipment (in this scheme, the equipment refers to the sodium bromide production unit) through a pipeline, so that the sodium bromide processed in the previous process enters the crystallization box 21 in the crystallization mechanism 2 (the sodium bromide processed in the previous process is in a solution state). The first distributor 27 has one input end and multiple output ends (the specific number of output ends of the first distributor 27 is consistent with the number of crystallization zones). The crystallization box 21 is divided into multiple crystallization zones of the same volume by a cross partition plate 22. Each crystallization zone is equipped with a vibration guide component 23, a resonance component 24 and a liquid level detector 25 (the vibration wave source of the vibration guide component 23 and the resonance component 24 will be explained in Step 3). The elastic rod 231 of the vibration guide assembly 23 is connected to the vibration guide rod 232. The sub-connector 233 at the top of the vibration guide rod 232 corresponds to the female connector 281 at the bottom of the flip cover 26, so as to transmit the vibration wave of the vibration guide rod 232 to the vibration wave detector 28. The frequency and intensity of the vibration wave in the current crystallization zone are detected and the results are transmitted to the controller. The controller can determine the crystallization status of sodium bromide in the current crystallization zone based on the vibration wave transmitted by the vibration guide rod 232 detected by the vibration wave detector 28. The reason for judging the crystallization status of sodium bromide in the current crystallization zone based on vibration waves is as follows: During the crystallization of sodium bromide, as crystallization proceeds, the propagation efficiency of vibration waves in the sodium bromide solution changes, which causes the vibration of the guide rod 232 to change accordingly. The vibration waves are transmitted to the vibration wave detector 28 through the sub-connector 233 and the female connector 281, thereby obtaining the crystallization status of sodium bromide in each crystallization zone and providing a basis for subsequent control. Specifically: When crystallization begins, the sodium bromide solution is in a relatively uniform liquid state, and the vibration wave propagates relatively smoothly within it. The guide rod 232 can receive a strong and stable vibration signal. At this time, the signal intensity received by the vibration wave detector 28 is high and the fluctuation is small. As crystallization progresses, sodium bromide crystals gradually form and grow, and the viscosity of the solution gradually increases. This hinders the propagation of the vibration wave, causing the vibration signal received by the guide rod 232 to gradually weaken. The signal intensity received by the vibration wave detector 28 also changes accordingly. By comparing with the preset standard signal (the preset standard signal can be customized by the operator in the controller), the degree of crystallization can be determined. For example, when the vibration wave signal intensity of a certain crystallization area drops to a certain level, it indicates that the crystallization in that area is close to completion. Based on this, the heating and vibration parameters of the corresponding heating mechanism 3 and vibration mechanism 4 can be adjusted to ensure that the crystallization progress of each crystallization area is consistent. Suppose that when the vibration wave signal intensity drops to 30% to 50% of the initial value, it indicates that the crystallization has entered the later stage. At this time, the heating power can be appropriately reduced or the vibration frequency adjusted to optimize the crystallization process and prevent over-crystallization or uneven crystallization.

[0038] The cross-shaped partition plate 22 is made of high-strength, corrosion-resistant materials (such as stainless steel). Its structural design ensures that the crystallization box 21 is precisely divided into multiple independent crystallization zones with the same volume. For example, there are commonly 4, 6 or 8 crystallization zones. This number can be customized according to the actual production scale and needs. The elastic rod 231 is made of a material with excellent elastic recovery performance, such as rubber or special spring steel, which can maintain stable and effective transmission during vibration transmission. The vibration guide rod 232 is made of highly conductive materials (such as copper alloy) to ensure that the vibration wave can be efficiently transmitted and collected in the crystallization zone. The fixing rod 241 of the resonance component 24 is connected to the resonance rod 242, which is composed of Hertzian resonance balls. It can resonate with the vibration mechanism 4, collect and amplify vibration waves, and promote uniform heating of the sodium bromide solution. The liquid level detector 25 is used to monitor the liquid level in the crystallization zone. The Hertzian resonance balls on the resonance rod 242 are made of ceramic or special alloy material. Their size is replaced according to the resonance frequency requirements. The Hertzian resonance balls are fixedly connected to each other through a linear array to form a specific resonance structure to achieve the best resonance effect and enhance the ability to collect and amplify vibration waves. The liquid level detector 25 can be used as a capacitive or ultrasonic liquid level sensor in the prior art. It can accurately measure the liquid level height of the sodium bromide solution in the crystallization zone in real time, ensuring the accuracy and stability of operation.

[0039] Step 2: When the sodium bromide solution enters each crystallization zone through the first distributor 27, the liquid level detector 25 detects that each crystallization zone is filled with sodium bromide solution. The liquid level detector 25 will feed back information to the controller. At this time, the controller will start the steam generator 5. The steam generator 5 uses electric heating or gas heating to generate stable water steam. The water steam generated by the steam generator 5 is transmitted to the second distributor 31 through the gas pipe 51. The second distributor 31 evenly distributes the water steam to multiple output ends, and then delivers it to the corresponding pressure regulating valve 32 through pipelines to ensure that the water steam flow rate input to each steam flow limiting component 39 is consistent, laying the foundation for subsequent precise control of the temperature of each crystallization zone. Steam output from pressure regulating valve 32 enters steam flow limiting component 39 in steam heating box 33. Steam flow limiting component 39 controls the amount of steam delivered to steam spraying component 35 by compression box 393 through electric telescopic rod 392 based on the crystallization status fed back by vibration wave detector 28. Since the bottom of spraying box 351 extends to the discharge area through perforated plate 36, and multiple sets of inclined nozzles 352 and direct flow nozzles 353 are provided on the side, steam can be sprayed out in both direct and oblique modes. Direct steam acts on the power fan 343 of steam guiding component 34 to make it rotate. Power fan 343 drives the coaxial spiral fan 342 to rotate. Spiral fan 342 guides oblique steam, making the steam more concentrated on heat conduction cover 310, thereby heating sodium bromide solution in crystallization box 21.

[0040] For example, when the crystallization rate in a certain crystallization zone is slow, the steam flow limiting component 39, based on the signal from the vibration wave detector 28, controls the electronically controlled telescopic rod 392 to shorten via the controller, thereby reducing the volume of the compression box 393. This results in a reduction in the amount of steam delivered from the compression box 393 to the spray box 351, thus adjusting the steam input according to the changes in crystallization rate in different crystallization zones, thereby controlling the crystallization temperature in different crystallization zones. The steam delivered to the spray box 351 is sprayed out by the inclined nozzle 352, forming a spiral airflow under the guidance of the spiral fan 342. The heat-conducting cover 310 is uniformly covered; the direct steam ejected from the DC nozzle 353 impacts the blades of the power fan 343, causing it to rotate and drive the spiral fan 342 to rotate, further optimizing the steam distribution and improving heating efficiency. The heat-conducting cover 310 is made of a high thermal conductivity material (such as copper or aluminum alloy), which can quickly and evenly transfer the steam heat to the solution in the crystallization box 21. The spiral fan 342 and the power fan 343 are made of high-temperature resistant plastic or stainless steel, which can efficiently convert the steam kinetic energy into rotational power, so that the steam forms a uniform and stable heat flow in the crystallization zone, ensuring that the solution is heated evenly.

[0041] The steam zone and the discharge zone within the steam heating box 33 are separated by a perforated plate 36. The discharge zone is equipped with a protective cover 361 corresponding to the position of the steam spraying component 35, two arc-shaped plates 37, and a breathable membrane pipe 38. The breathable membrane pipe 38 can release the pressure inside the steam heating box 33, allowing airflow to pass through but preventing water droplets after the water vapor has cooled from passing through. The released airflow acts on the vibration mechanism 4 through the air intake pipe 381. The arc-shaped plates 37 guide water droplets through the water guide pipe 331 to the drainer 332, thereby realizing the discharge of water droplets inside the steam heating box 33 and maintaining the normal operation of the equipment. During the steam heating process, the pressure in the steam zone will rise. Since the breathable membrane pipe 38 only allows gas molecules to pass through, water vapor molecules are blocked due to their larger particle size. The gas will be discharged through the breathable membrane pipe 38 and then enter the vibration mechanism 4 through the air inlet pipe 381 to participate in the vibration generation process. At the same time, water droplets that may be generated in the steam zone fall to the bottom of the discharge zone under the action of gravity. The arc plate 37 guides the water droplets to flow into the water pipe 331 and finally discharges them to the drain 332 to prevent water droplets from accumulating and affecting the steam heating effect.

[0042] Step 3: The airflow in the exhaust zone of the steam heating box 33 enters the release pipe 451 of the gas release assembly 45 through the air intake pipe 381 and the three-way pipe 46. The airflow in the release pipe 451 acts on the vibrating plate 44 through the exhaust structure 453. The fan 4533 in the exhaust structure 453 rotates under the action of the airflow, driving the power shaft 4531 and the fan blades 4532 to rotate, so that the airflow impacts the vibrating plate 44 to generate vibration. The vibration is transmitted to the corresponding crystallization zone through the vibration shroud 42, promoting the uniform heating of the sodium bromide solution. The vent valve 43 on the upper end face of the shell 41 is used to discharge the airflow in the release pipe 451.

[0043] In summary, when the airflow enters the release pipe 451, it is discharged through the symmetrical release holes 452 on both sides of the discharge structure 453. The fan 4533 rotates under the drive of the airflow, and the power shaft 4531 drives the fan blades 4532 to rotate, so that the airflow forms a high-speed pulse impact on the vibrating plate 44. The vibrating plate 44 is made of elastic metal material (such as stainless steel or spring steel), which generates high-frequency vibration under the impact of the airflow. The vibration shroud 42 has good sound absorption and conduction performance, which can effectively transmit the vibration wave to the crystallization area, ensuring that the solution is heated evenly. The venting valve 43 can adjust the air pressure in the release pipe 451 to ensure stable airflow discharge.

[0044] A method for producing sodium bromide includes: partitioned uniform crystallization of sodium bromide and temperature control of partitioned crystallization of sodium bromide, specifically including the following steps: Temperature control for zoned crystallization of sodium bromide: First, the steam generated by the steam generator 5 is transmitted to the second distributor 31. Then, the second distributor 31 further transmits the steam to the corresponding pressure regulating valve 32, thereby achieving uniform and stable transmission of steam to each steam flow limiting component 39. The steam flow limiting component 39 can control the amount of steam delivered to the steam spraying component 35 according to the crystallization of sodium bromide in the corresponding crystallization zone. The steam sprayed from the steam spraying component 35 will be either direct or oblique. These two spray patterns are used to drive the steam guiding component 34 to rotate, which is beneficial for the steam to fully act on the sodium bromide in the corresponding crystallization zone. Uniform crystallization of sodium bromide in different zones: The crystallization box 21 can be divided into multiple crystallization zones with the same volume and without interference by the cross-shaped partition plate 22. At the same time, a resonance component 24 and a vibration guide component 23 for transmitting vibration are set in each crystallization zone. Meanwhile, the gas discharged from the steam heating box 33 enters the vibration mechanism 4, thereby causing the vibration mechanism 4 to vibrate. The resonance component 24 collects and amplifies the vibration waves generated by the vibration mechanism 4, promoting uniform heating of the sodium bromide solution to achieve uniform crystallization of sodium bromide solution. The vibration guide component 23 is used to collect the wave intensity transmitted by the resonance component 24 in the sodium bromide solution, thereby obtaining the crystallization status of sodium bromide in the current crystallization zone.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sodium bromide production apparatus, characterized in that, include: The base (1) has a shell (11) fixedly connected to its upper end surface. Crystallization mechanism (2), the crystallization mechanism (2) includes a crystallization box (21) fixedly connected to the upper part of the outer shell (11), a cross partition plate (22) is fixedly connected inside the crystallization box (21), and the cross partition plate (22) divides the crystallization box (21) into multiple crystallization zones with the same volume. Each crystallization zone is provided with a vibration guide component (23), two resonance components (24) and a liquid level detector (25). The upper end face of the crystallization box (21) is hinged to a flip cover (26), and the upper end face of the flip cover (26) is fixedly connected to a first diverter (27) and multiple vibration wave detectors (28), and the vibration wave detectors (28) correspond to the vibration guide component (23). Heating mechanism (3), the heating mechanism (3) includes a second diverter (31) fixedly connected to the bottom of the lower half of the shell (11), a plurality of pressure regulating valves (32) corresponding to the number and position of crystallization zones are fixedly connected in a rectangular array at the bottom of the shell (11) with the second diverter (31) as the center, and a plurality of steam heating boxes (33) corresponding to the crystallization zones are fixedly connected to the bottom of the crystallization box (21), and each of the steam heating boxes (33) is provided with two steam guiding components (34), one steam spraying component (35) and one steam flow limiting component (39); Vibration mechanism (4), having multiple vibration mechanisms (4), the multiple vibration mechanisms (4) are arranged on the side of the outer shell (11) corresponding to the crystallization zone; The upper surface of the base (1) is provided with a steam generator (5) that provides steam for the heating mechanism (3) and the vibration mechanism (4).

2. The sodium bromide production apparatus according to claim 1, characterized in that, The vibration guiding assembly (23) includes elastic rods (231) fixedly connected to the top two sides of the crystallization zone. The body of the elastic rods (231) is fixedly connected to a vibration guiding rod (232) extending into the crystallization zone. The top of the vibration guiding rod (232) is fixedly connected to a sub-connector (233). The resonant assembly (24) includes a fixed rod (241) fixedly connected to the top two sides of the crystallization zone. The outer wall of the fixed rod (241) is fixedly connected to a resonant rod (242), and the resonant rod (242) extends into the crystallization zone. Each of the resonant rods (242) is composed of multiple linear arrays of Hertz resonant spheres fixedly connected to each other. The liquid level detector (25) is fixedly connected to the top wall of the crystallization zone. The bottom of the flip cover (26) is fixedly connected to a plurality of female connectors (281) corresponding to the vibration wave detector (28). The probe of the vibration wave detector (28) penetrates the flip cover (26) and contacts the female connector (281) at the corresponding position.

3. The sodium bromide production apparatus according to claim 1, characterized in that, The second diverter (31) has one input end and multiple output ends. The number of output ends of the second diverter (31) is the same as the number of pressure regulating valves (32). Each output end of the second diverter (31) is connected to the input end of the pressure regulating valve (32) through a pipe. The bottom of the steam heating box (33) is fixedly connected to two water pipes (331). The side of the outer shell (11) is fixedly connected to multiple drainers (332) that correspond one-to-one with the number and position of the crystallization zone. The two water pipes (331) pass through the crystallization box (21) and the outer shell (11) and are connected to the drainers (332) at the corresponding positions. A perforated plate (36) is fixedly connected in the middle of the steam heating box (33). The perforated plate (36) divides the interior of the steam heating box (33) into a steam zone and a discharge zone. A heat-conducting cover (310) that contacts the crystallization box (21) is fixedly connected to the upper end of the steam zone. The steam spraying assembly (35) is located at the center of the bottom of the steam zone. The steam spraying assembly (35) includes a spray box (351) fixedly connected to the bottom of the steam zone. The bottom of the spray box (351) extends through the perforated plate (36) into the discharge zone. Two sets of inclined nozzles (352) and one set of direct current nozzles (353) are provided on the opposite sides of the spray box (351) from top to bottom. Each set of inclined nozzles (352) and one set of direct current nozzles (353) has multiple units and is fixedly connected to the side of the spray box (351) in a linear array.

4. The sodium bromide production apparatus according to claim 3, characterized in that, Two steam guiding components (34) are symmetrically arranged inside the steam zone centered on the steam spraying component (35). The steam guiding component (34) includes a fixed plate (341) fixedly connected to the inner wall of the steam zone. Multiple spiral fans (342) are rotatably connected to the top of the fixed plate (341) in a linear array, and each spiral fan (342) corresponds to the position of two sets of inclined nozzles (352). Multiple power fans (343) corresponding to the spiral fans (342) are rotatably connected to the bottom of the fixed plate (341) in a linear array. A rotating shaft is fixedly connected to the central axis of each spiral fan (342), and the rotating shaft passes through the fixed plate (341) and is fixedly connected to the central axis of the corresponding power fan (343).

5. The sodium bromide production apparatus according to claim 4, characterized in that, The interior of the discharge zone is fixedly connected to a protective cover (361) corresponding to the position of the steam spraying component (35). Two arc-shaped plates (37) are symmetrically arranged at the bottom of the discharge zone with the length direction of the protective cover (361) as the center. Two breathable membrane pipes (38) are symmetrically arranged at the bottom of the discharge zone with the width direction of the protective cover (361) as the center. The sides of the breathable membrane pipes (38) are fixedly connected to air intake pipes (381). The steam flow limiting component (39) is located at the bottom of the spray box (351) extending to the discharge area. The steam flow limiting component (39) includes a compression box (393) fixedly connected to the center of the bottom of the spray box (351). The output end of the compression box (393) is connected to the spray box (351). The input end of the spray box (351) is fixedly connected to a delivery pipe (394). The end of the delivery pipe (394) away from the compression box (393) is connected to the output end of a pressure stabilizing valve (32) at the corresponding position. Two mounting plates (391) are symmetrically fixedly connected to the bottom of the spray box (351) with the compression box (393) as the center. Each mounting plate (391) has an electrically controlled telescopic rod (392) fixedly connected to the side of the compression box (393) on the side facing the compression box (393). The telescopic end of the electrically controlled telescopic rod (392) is fixedly connected to the side of the compression box (393).

6. The sodium bromide production apparatus according to claim 1, characterized in that, The vibration mechanism (4) includes multiple vibration-concentrating covers (42) fixedly connected to the side of the outer shell (11) in a linear array. Each vibration-concentrating cover (42) is fixedly connected to a housing (41) on the side away from the outer shell (11). A venting valve (43) is fixedly connected to the upper end face of the housing (41). A gas release component (45) and two sets of vibrating plates (44) are symmetrically arranged around the gas release component (45) inside the housing (41). The gas release component (45) includes a connecting seat (454) fixedly connected to the center of the bottom of the housing (41). The top of the connecting seat (454) is fixedly connected to a release pipe (451), and the bottom of the release pipe (451) is fixedly connected to a connecting pipe (455). A three-way pipe (46) is fixedly connected to the bottom of the housing (41). The connecting pipe (455) passes through the housing (41) and connects to one port of the three-way pipe (46). The other two ports of the three-way pipe (46) are connected to two air venting pipes (381).

7. A sodium bromide production apparatus according to claim 6, characterized in that, The release tube (451) and the two sets of vibrating plates (44) are provided with multiple release holes (452) on both sides of the linear array. The release tube (451) is provided with multiple discharge structures (453) corresponding to the release holes (452). The discharge structure (453) includes two fans (4533) rotatably connected in symmetrical release holes (452) on both sides. A power shaft (4531) is fixedly connected to the center of the opposite face of the two fans (4533). Multiple fan blades (4532) are fixedly connected to the shaft of the power shaft (4531) in a ring array. A connecting pipe (455) is fixedly connected to the top of the connecting seat (454). The connecting pipe (455) penetrates the housing (41).

8. A sodium bromide production apparatus according to claim 1, characterized in that, The steam generator (5) includes a steam generator (5) fixedly connected to the upper surface of the base (1). The output end of the steam generator (5) is fixedly connected to a gas guide pipe (51). The end of the gas guide pipe (51) away from the steam generator (5) is connected to the input end of the second distributor (31).

9. A method for producing sodium bromide, applied to the sodium bromide production apparatus according to any one of claims 1-8, characterized in that, This includes: the uniform crystallization of sodium bromide in different zones and the temperature control of sodium bromide crystallization in different zones, specifically including the following steps: Temperature control of sodium bromide in zoned crystallization: First, the steam generated by the steam generator (5) is transmitted to the second distributor (31), and then the second distributor (31) further transmits the steam to the pressure stabilizing valve (32) at the corresponding position, so as to achieve the purpose of uniform and stable transmission of steam to each steam flow limiting component (39). The steam flow limiting component (39) can control the amount of steam delivered to the steam spraying component (35) according to the crystallization of sodium bromide in the corresponding crystallization zone. The steam sprayed from the steam spraying component (35) will be in two states: direct and oblique. The two spraying states are used to drive the steam guiding component (34) to rotate, which is conducive to the full action of steam on sodium bromide in the corresponding crystallization zone. Uniform crystallization of sodium bromide in different zones: The crystallization box (21) can be divided into multiple crystallization zones with the same volume and without interference by the cross partition plate (22). At the same time, a resonance component (24) and a vibration guide component (23) for transmitting vibration are set in each crystallization zone. Meanwhile, the gas discharged from the steam heating box (33) enters the vibration mechanism (4), thereby causing the vibration mechanism (4) to vibrate. The resonance component (24) collects and amplifies the vibration waves generated by the vibration mechanism (4), promoting uniform heating of the sodium bromide solution to achieve uniform crystallization of the sodium bromide solution. The vibration guide component (23) is used to collect the wave intensity transmitted by the resonance component (24) in the sodium bromide solution, thereby obtaining the crystallization status of sodium bromide in the current crystallization zone.

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