Distillation tower for bromine production
By designing mixing components, preheating components and condensing components in the distillation tower for bromine production, the problems of insufficient contact with primary acid and chlorine and water vapor and poor condensation are solved, and the full vaporization and uniform condensation of bromine are achieved. Improve product utilization and condensation efficiency.
Patent Information
- Application Number
- CN202421086102.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-18
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-18
AI Technical Summary
The existing distillation tower for bromine production has a small contact area when primary acid contacts chlorine and water vapor, resulting in insufficient reaction and waste of products; poor condensation effect and obvious temperature difference loss.
A distillation tower consisting of a mixing component, a preheating component and a condensing component is designed. The mixing component realizes sufficient contact between primary acid and chlorine and water vapor through rotating blades. The preheating component reduces temperature difference through a liquid-through tube, and the condensing component passes through an interleaving method. The baffle and partition plate achieve uniform cooling of gaseous bromine.
The full reaction between primary acid and chlorine and the full gasification of bromine are achieved, which reduces the temperature difference loss, improves the gasification effect, and improves the condensation effect through uniform cooling.
Smart Images
Figure CN222357977U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of distillation towers, in particular to a distillation tower for bromine production. Background Art
[0002] Bromine is a brown-red, volatile liquid with a strong pungent odor. Its vapor is brown-red and its solid is yellow-green with a metallic luster. It is an important chemical raw material, especially in the pharmaceutical, chemical, pesticide, oil field and other industries. It is mainly used in the preparation of bromides, drugs, fumigants, flame retardants, fire extinguishing agents, fuel intermediates, chemicals, refrigerants, photosensitive materials, etc. It is also used for bleaching and disinfection.
[0003] In the process of producing bromine, it is necessary to spray a primary acid solution containing bromine elements into the distillation tower, and at the same time, introduce chlorine gas and water vapor. The chlorine gas reacts with the primary acid to produce liquid bromine, and the water vapor distills the bromine out of it. After condensation and separation, relatively pure bromine is obtained.
[0004] The existing distillation tower for bromine production has gradually exposed its shortcomings during use, mainly in the following aspects:
[0005] First, when the primary acid contacts chlorine and water vapor, the contact area is small and the contact time is short, which not only easily leads to the inability of the primary acid and chlorine to fully react, resulting in waste of reactants, but also easily leads to the inability of the bromine produced by the reaction to be completely vaporized, resulting in waste of products. In addition, when the primary acid is directly added to the distillation tower, the temperature difference with water vapor is large, resulting in temperature difference loss, which affects the gasification effect of bromine.
[0006] Second, when condensing gaseous bromine, bromine is usually introduced directly into a cooling pipe with a cooling mechanism installed on the outer wall for condensation. However, the temperature in the middle of the cooling pipe is higher than that in other positions, resulting in that the gas in the cooling pipe cannot be evenly cooled. In addition, the speed of gaseous bromine passing through the cooling pipe is relatively fast, and the gaseous bromine cannot be fully condensed, resulting in a poor condensation effect.
[0007] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content
[0008] In view of the defects in the prior art, the technical problem to be solved by the utility model is to provide a distillation tower for bromine production, which can achieve full contact between primary acid and chlorine and water vapor, so that the primary acid and chlorine can fully react, and the bromine produced by the reaction can be fully gasified, and the temperature difference loss can be reduced to improve the gasification effect;
[0009] The distillation tower can also evenly cool the vaporized bromine, and at the same time can slow down the passage rate of the gaseous bromine and improve the condensation effect.
[0010] In order to solve the above problems, the utility model provides the following technical solutions:
[0011] A distillation tower for bromine production comprises a fixed distillation tower body, a mixing assembly and a preheating assembly are arranged vertically inside the distillation tower body, and a condensing assembly connected to the inner cavity of the distillation tower body is arranged on the side of the distillation tower body.
[0012] The mixing component can achieve full contact between the primary acid and the chlorine and water vapor; the preheating component can reduce the temperature difference loss; and the condensing component can evenly cool the gaseous bromine;
[0013] The mixing assembly includes four upper fixed boxes fixedly arranged on the inner wall of the distillation tower body, and the four upper fixed boxes are evenly distributed along the circumference of the distillation tower body, wherein two opposite upper fixed boxes are located above the other two upper fixed boxes, and the ends of the two upper fixed boxes facing each other are both arranged downward and fixed with a plurality of atomizing nozzles, and the ends of the other two opposite upper fixed boxes facing each other are respectively provided with a plurality of spray nozzles and steam nozzles,
[0014] Four fixed lower boxes are evenly distributed along the circumference of the inner wall of the distillation tower body. The lower boxes are located below the upper boxes. The opposite ends of the lower boxes are respectively provided with a plurality of jet nozzles and steam nozzles.
[0015] A rotating shaft is coaxially arranged in the distillation tower body, and a plurality of upper rotating blades and lower rotating blades are evenly distributed along the circumference of the outer wall of the rotating shaft. The upper rotating blades are located between two upper fixed boxes, and the lower rotating blades are located between four lower fixed boxes.
[0016] As an optimized solution, the preheating assembly includes a plurality of vertically arranged liquid pipes, the plurality of liquid pipes are connected through a connecting pipe, and a plurality of vertically arranged fins are coaxially fixed to the outer wall of the liquid pipe.
[0017] The two ports of the liquid pipes are respectively provided with a liquid inlet pipe and a liquid outlet pipe which are connected. The liquid outlet pipe is connected with an upper fixed box provided with an atomizing nozzle through a connecting pipe. One end of the liquid inlet pipe extends to the outside through the distillation tower body.
[0018] As an optimized solution, the condensing assembly includes a vertically arranged fixed tube, a fixed tube coaxially arranged in the fixed tube and abutting against the inner wall thereof, the top and bottom of the fixed tube are both sealed, a plurality of cooling tubes are fixedly arranged at the bottom of the fixed tube, the top of the cooling tube extends upward through the fixed tube, and the top surface of the cooling tube is flush with the top surface of the fixed tube.
[0019] Three water inlet pipes and three water outlet pipes are arranged on both sides of the fixed pipe. The water inlet pipes and the water outlet pipes pass through the fixed pipe and the fixed cylinder in sequence and are both communicated with the inner cavity of the fixed cylinder.
[0020] As an optimized solution, two vertically arranged partition plates are symmetrically provided along the axial section of the inner bottom of the fixed cylinder. The tops of the two partition plates extend upward and are fixedly connected to the inner top of the fixed cylinder. The two partition plates divide the fixed cylinder into three areas. The number of cooling pipes in each area is the same. The three water inlet pipes and the three water outlet pipes are connected to the three areas accordingly.
[0021] As an optimized solution, a plurality of staggered baffles are fixedly provided on the inner wall of the cooling tube, and the baffles can reduce the flow rate of the bromine gas.
[0022] As an optimized solution, the lower port of the fixed pipe is fixedly connected with a lower hopper which is arranged in communication therewith, and the lower port of the lower hopper is detachably provided with a collecting tank which is in communication therewith.
[0023] As an optimized solution, the top of the fixed cylinder is sealed, and the top of the fixed cylinder is provided with a condensation exhaust pipe connected to the inner cavity thereof.
[0024] As an optimized solution, a driving motor is fixedly provided on the top of the distillation tower body, and the output end of the driving motor passes through the distillation tower body and is fixedly connected to the rotating shaft.
[0025] As an optimized solution, ventilation pipes and air inlet pipes are fixedly provided on both sides of the distillation tower body. The ventilation pipes pass through the distillation tower body and are connected to the upper fixed box and the lower fixed box provided with the jet nozzle.
[0026] The air inlet pipe passes through the distillation tower body and is communicated with the upper fixed box and the lower fixed box provided with the steam nozzle.
[0027] As an optimized solution, the distillation tower body is connected to the fixed pipe through the distillation exhaust pipe, and a waste discharge pipe connected to the inner cavity of the distillation tower body is fixedly provided at the bottom of the distillation tower body.
[0028] Compared with the prior art, the beneficial effects of the utility model are:
[0029] 1. The mixing component can achieve full contact between the primary acid, chlorine and water vapor, so that the primary acid and chlorine can fully react, and the bromine produced by the reaction can be fully gasified;
[0030] 2. Preheating components can reduce temperature difference loss and improve the gasification effect of bromine;
[0031] 3. The condensation component can evenly cool the vaporized bromine, slow down the passage rate of gaseous bromine, and improve the condensation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.
[0033] Figure 1 It is a schematic diagram of the structure of the utility model;
[0034] Figure 2 It is a structural schematic diagram of the condensation component of the utility model;
[0035] Figure 3 It is a structural schematic diagram of the baffle of the utility model;
[0036] Figure 4 It is a structural schematic diagram of the liquid passage pipe of the utility model;
[0037] Figure 5 It is a structural schematic diagram of the ventilation pipe of the utility model.
[0038] In the figure: 1-waste discharge pipe; 2-connecting pipe; 3-liquid pipe; 4-fin; 5-preheating assembly; 6-steam nozzle; 7-lower fixed box; 8-atomizing nozzle; 9-mixing assembly; 10-vent pipe; 11-spray nozzle; 12-upper fixed box; 13-distillation tower body; 14-driving motor; 15-inlet pipe; 16-condensation assembly; 17-collecting tank; 18-connecting pipe; 19-liquid outlet pipe; 20-liquid inlet pipe; 21-lower rotating blade; 22-upper rotating blade; 23-rotating shaft; 24-water inlet pipe; 25-distillation exhaust pipe; 26-condensation exhaust pipe; 27-fixed pipe; 28-water outlet pipe; 29-fixed cylinder; 30-lower hopper; 31-partition plate; 32-baffle; 33-cooling pipe. DETAILED DESCRIPTION
[0039] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.
[0040] like Figures 1 to 5 As shown, a distillation tower for bromine production includes a fixed distillation tower body 13, a mixing assembly 9 and a preheating assembly 5 are vertically arranged inside the distillation tower body 13, and a condensing assembly 16 connected to the inner cavity of the distillation tower body 13 is provided on the side of the distillation tower body 13.
[0041] The mixing component 9 can achieve full contact between the primary acid and the chlorine gas and water vapor; the preheating component 5 can reduce the temperature difference loss; the condensing component 16 can evenly cool the gaseous bromine;
[0042] The mixing assembly 9 includes four upper fixed boxes 12 fixedly arranged on the inner wall of the distillation tower body 13. The four upper fixed boxes 12 are evenly distributed along the circumference of the distillation tower body 13, wherein two opposite upper fixed boxes 12 are located above the other two upper fixed boxes 12, and the ends of the two upper fixed boxes 12 facing each other are both arranged downward and fixedly provided with a plurality of atomizing nozzles 8, and the ends of the other two opposite upper fixed boxes 12 facing each other are respectively provided with a plurality of spray nozzles 11 and a steam nozzle 6.
[0043] Four fixed lower boxes 7 are evenly distributed along the circumference of the inner wall of the distillation tower body 13. The lower boxes 7 are located below the upper boxes 12. The opposite ends of the lower boxes 7 are respectively provided with a plurality of jet heads 11 and steam jet heads 6.
[0044] A rotating shaft 23 is coaxially arranged in the distillation tower body 13, and a plurality of upper rotating blades 22 and lower rotating blades 21 are evenly distributed on the outer wall of the rotating shaft 23 along its circumference. The upper rotating blade 22 is located between the two upper fixed boxes 12, and the lower rotating blade 21 is located between the four lower fixed boxes 7.
[0045] When the atomizing nozzle 8 sprays the primary acid, the nozzle 11 and the steam nozzle 6 on the upper fixed box 12 spray chlorine and water vapor respectively, and at the same time, the upper rotating blade 22 rotates to uniformly mix the primary acid with the chlorine and water vapor. The primary acid after the initial reaction is diffused to the surroundings under the stirring of the upper rotating blade 22.
[0046] The diffused primary acid moves downward, and the nozzle 11 and the steam nozzle 6 on the lower fixed box 7 spray chlorine and water vapor respectively. At the same time, the lower rotating blade 21 rotates to evenly mix the chlorine and water vapor. The mixed gas diffuses to the surroundings under the stirring of the lower rotating blade 21, and moves upward at the same time to be evenly mixed with the primary acid after the initial reaction again.
[0047] The preheating assembly 5 includes a plurality of vertically arranged liquid pipes 3, the plurality of liquid pipes 3 are connected through the connecting pipe 2, and a plurality of vertically arranged fins 4 are coaxially fixed to the outer wall of the liquid pipe 3.
[0048] The two liquid pipes 3 are provided with a liquid inlet pipe 20 and a liquid outlet pipe 19 at their ends. The liquid outlet pipe 19 is connected to the upper fixed box 12 provided with the atomizing nozzle 8 through the connecting pipe 18. One end of the liquid inlet pipe 20 passes through the distillation tower body 13 and extends to the outside.
[0049] The primary acid solution enters the liquid passage 3 through the liquid inlet pipe 20, and exchanges heat with the waste liquid at the bottom of the distillation tower body 13 with the cooperation of the fins 4, thereby reducing the temperature difference between the primary acid solution and the water vapor.
[0050] The condensing assembly 16 includes a vertically arranged fixed tube 27, a fixed tube 29 is coaxially arranged in the fixed tube 27 and abuts against the inner wall thereof, the top and bottom of the fixed tube 29 are both sealed, a plurality of cooling tubes 33 are fixedly arranged at the bottom of the fixed tube 29, the top of the cooling tube 33 extends upward through the fixed tube 29, and the top surface of the cooling tube 33 is flush with the top surface of the fixed tube 29.
[0051] Three water inlet pipes 24 and three water outlet pipes 28 are provided on both sides of the fixed pipe 27. The water inlet pipes 24 and the water outlet pipes 28 pass through the fixed pipe 27 and the fixed cylinder 29 in sequence, and are both connected to the inner cavity of the fixed cylinder 29.
[0052] When the gaseous bromine flowing out of the distillation tower body 13 passes through the cooling tubes 33, the temperature thereof can be uniformly reduced.
[0053] Two vertically arranged partition plates 31 are symmetrically arranged along the axial section of the inner bottom of the fixed cylinder 29. The tops of the two partition plates 31 extend upward and are fixedly connected to the inner top of the fixed cylinder 29. The two partition plates 31 divide the fixed cylinder 29 into three areas. The number of cooling pipes 33 in each area is the same. The three water inlet pipes 24 and the three water outlet pipes 28 are connected to the three areas respectively.
[0054] The partition plate 31 divides the fixed cylinder 29 into three areas, thereby improving the circulation effect of the condensed water in the fixed cylinder 29 and maintaining a relatively low temperature in the fixed cylinder 29 .
[0055] A plurality of staggered baffles 32 are fixedly disposed on the inner wall of the cooling tube 33 , and the baffles 32 can reduce the flow rate of the bromine gas.
[0056] The lower end of the fixed pipe 27 is fixedly connected to a lower hopper 30 which is arranged in communication therewith. The lower end of the lower hopper 30 is detachably provided with a collecting tank 17 which is in communication therewith.
[0057] The top of the fixed cylinder 29 is sealed, and a condensation exhaust pipe 26 communicating with the inner cavity of the fixed cylinder 29 is disposed on the top of the fixed cylinder 29 .
[0058] A driving motor 14 is fixedly provided on the top of the distillation tower body 13 , and an output end of the driving motor 14 passes through the distillation tower body 13 and is fixedly connected to the rotating shaft 23 .
[0059] A vent pipe 10 and an air inlet pipe 15 are fixedly provided on both sides of the distillation tower body 13. The vent pipe 10 passes through the distillation tower body 13 and is connected to the upper fixed box 12 and the lower fixed box 7 provided with the jet nozzle 11.
[0060] The air inlet pipe 15 passes through the distillation tower body 13 and is connected to the upper fixed box 12 and the lower fixed box 7 provided with the steam nozzle 6 .
[0061] The distillation tower body 13 is connected to the fixed pipe 27 through the distillation exhaust pipe 25, and a waste discharge pipe 1 connected to the inner cavity of the distillation tower body 13 is fixedly provided at the bottom of the distillation tower body 13.
[0062] The working principle of this device is:
[0063] When distilling bromine, the primary acid solution enters the liquid pipe 3 through the liquid inlet pipe 20. When the primary acid solution passes through the plurality of liquid pipes 3, the fins 4 are used to perform heat exchange with the waste liquid in the distillation tower body 13, thereby increasing the temperature of the primary acid solution, reducing the temperature difference with the water vapor, and improving the gasification effect of the liquid bromine.
[0064] The primary acid solution after heat exchange enters into two opposite upper fixed boxes 12 through the liquid outlet pipe 19 and the connecting pipe 18 in turn. The atomizing nozzle 8 on the upper fixed box 12 atomizes the primary acid solution and sprays it out. Meanwhile, chlorine and water vapor enter into the upper fixed box 12 and the lower fixed box 7 through the ventilation pipe 10 and the air inlet pipe 15 respectively. The spray nozzle 11 and the steam nozzle 6 on the upper fixed box 12 spray out chlorine and water vapor respectively. The driving motor 14 drives the rotating shaft 23 to rotate. The rotating shaft 23 drives the upper rotating blade 22 and the lower rotating blade 21 to rotate. The upper rotating blade 22 evenly mixes the primary acid, chlorine and water vapor. The primary acid reacts with the chlorine and water vapor for the first time.
[0065] The primary acid after the initial reaction diffuses to the surroundings under the stirring of the upper rotating blade 22 and moves downward at the same time. The nozzle 11 on the lower fixed box 7 and the steam nozzle 6 spray chlorine and water vapor. The chlorine and water vapor are evenly mixed under the stirring of the lower rotating blade 21 and diffuse to the surroundings. During the upward movement of the mixed gas, it contacts with the primary acid moving downward and reacts, so that the primary acid is fully contacted with the chlorine and water vapor, so that the primary acid and chlorine react fully, and the bromine produced by the reaction is fully gasified;
[0066] After the vaporized bromine enters the fixed tube 27 through the distillation exhaust pipe 25, it enters into several cooling tubes 33 respectively, and the gaseous bromine is pre-cooled and liquefied. The liquefied bromine flows to the collecting tank 17 through the lower hopper 30 for collection. The gas in the cooling tube 33 is blocked by the baffle 32, and the flow speed becomes slow. At the same time, the partition plate 31 divides the fixed cylinder 29 into three areas, which effectively improves the circulation effect of the condensed water in the fixed cylinder 29, thereby maintaining a relatively low temperature in the fixed cylinder 29, achieving uniform cooling of the vaporized bromine, and at the same time slowing down the passage rate of the gaseous bromine, thereby improving the condensation effect of the bromine.
[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.
Claims
1. A distillation tower for bromine production, characterized in that: The distillation tower body (13) comprises a fixedly arranged distillation tower body, wherein a mixing assembly (9) and a preheating assembly (5) are arranged vertically inside the distillation tower body (13), and a condensing assembly (16) connected to the inner cavity of the distillation tower body (13) is arranged on the side thereof. The mixing component (9) can achieve full contact between the primary acid and the chlorine gas and water vapor; the preheating component (5) can reduce temperature difference loss; and the condensing component (16) can evenly cool the gaseous bromine; The mixing assembly (9) comprises four upper fixed boxes (12) fixedly arranged on the inner wall of the distillation tower body (13), the four upper fixed boxes (12) being evenly distributed along the circumference of the distillation tower body (13), wherein two opposite upper fixed boxes (12) are located above the other two upper fixed boxes (12), the facing ends of the two upper fixed boxes (12) are both arranged downward and fixedly provided with a plurality of atomizing nozzles (8), and the facing ends of the other two opposite upper fixed boxes (12) are respectively provided with a plurality of spray nozzles (11) and a steam nozzle (6), Four fixed lower boxes (7) are evenly distributed along the circumference of the inner wall of the distillation tower body (13). The lower boxes (7) are located below the upper boxes (12). The opposite ends of the lower boxes (7) are respectively provided with a plurality of spray heads (11) and steam spray heads (6). A rotating shaft (23) is coaxially arranged in the distillation tower body (13), and a plurality of upper rotating blades (22) and lower rotating blades (21) are evenly distributed on the outer wall of the rotating shaft (23) along its circumference. The upper rotating blades (22) are located between two upper fixed boxes (12), and the lower rotating blades (21) are located between four lower fixed boxes (7).
2. A distillation tower for bromine production according to claim 1, characterized in that: The preheating assembly (5) comprises a plurality of vertically arranged liquid passage pipes (3), the plurality of liquid passage pipes (3) are connected via a connecting pipe (2), and a plurality of fins (4) vertically arranged in parallel are coaxially fixedly connected to the outer wall of the liquid passage pipe (3). The two ends of the liquid-passing pipes (3) are respectively provided with a liquid inlet pipe (20) and a liquid outlet pipe (19) which are connected to each other. The liquid outlet pipe (19) is connected to an upper fixed box (12) provided with an atomizing nozzle (8) through a connecting pipe (18). One end of the liquid inlet pipe (20) passes through the distillation tower body (13) and extends to the outside.
3. A distillation tower for bromine production according to claim 2, characterized in that: The condensing assembly (16) comprises a vertically arranged fixed tube (27), wherein a fixed tube (29) is coaxially arranged inside the fixed tube (27) and abuts against the inner wall thereof, wherein the top and the bottom of the fixed tube (29) are both sealed, and a plurality of cooling tubes (33) are fixedly arranged at the bottom of the fixed tube (29), wherein the top of the cooling tube (33) extends upward through the fixed tube (29), and the top surface of the cooling tube (33) is flush with the top surface of the fixed tube (29). Three water inlet pipes (24) and three water outlet pipes (28) are arranged on both sides of the fixed pipe (27); the water inlet pipes (24) and the water outlet pipes (28) pass through the fixed pipe (27) and the fixed cylinder (29) in sequence and are both communicated with the inner cavity of the fixed cylinder (29).
4. A distillation tower for bromine production according to claim 3, characterized in that: The inner bottom of the fixed cylinder (29) is symmetrically provided with two vertically arranged partition plates (31) along its axial section. The tops of the two partition plates (31) extend upward and are fixedly connected to the inner top of the fixed cylinder (29). The two partition plates (31) divide the fixed cylinder (29) into three areas. The number of the cooling pipes (33) in each area is the same. The three water inlet pipes (24) and the three water outlet pipes (28) are connected to the three areas accordingly.
5. A distillation tower for bromine production according to claim 4, characterized in that: A plurality of staggered baffles (32) are fixedly provided on the inner wall of the cooling tube (33), and the baffles (32) can reduce the flow rate of the bromine gas.
6. A distillation tower for bromine production according to claim 5, characterized in that: The lower end of the fixed pipe (27) is fixedly connected to a lower hopper (30) which is arranged in communication therewith, and the lower end of the lower hopper (30) is detachably provided with a collecting tank (17) which is in communication therewith.
7. A distillation tower for bromine production according to claim 6, characterized in that: The top of the fixed cylinder (29) is sealed, and the top of the fixed cylinder (29) is provided with a condensation exhaust pipe (26) connected to its inner cavity.
8. A distillation tower for bromine production according to claim 7, characterized in that: A driving motor (14) is fixedly provided on the top of the distillation tower body (13), and an output end of the driving motor (14) passes through the distillation tower body (13) and is fixedly connected to a rotating shaft (23).
9. A distillation tower for bromine production according to claim 8, characterized in that: A vent pipe (10) and an air inlet pipe (15) are fixedly provided on both sides of the distillation tower body (13). The vent pipe (10) passes through the distillation tower body (13) and is connected to an upper fixed box (12) and a lower fixed box (7) provided with a jet nozzle (11). The air inlet pipe (15) passes through the distillation tower body (13) and is connected to the upper fixed box (12) and the lower fixed box (7) provided with the steam nozzle (6).
10. A distillation tower for bromine production according to claim 9, characterized in that: The distillation tower body (13) is connected to a fixed pipe (27) via a distillation exhaust pipe (25), and a waste discharge pipe (1) connected to its inner cavity is fixedly provided at the bottom of the distillation tower body (13).