Blow-out tower with flow blocking effect for bromine production

Abstract

A bromine production blow-out tower with a flow choking effect relates to the technical field of bromine production and comprises a fixedly arranged blow-out tower body, two sides of the blow-out tower body are respectively provided with an air inlet assembly and a brine pump which are communicated with an inner cavity of the blow-out tower body, and a mixing mechanism is arranged in the blow-out tower body. The mixing mechanism comprises a rotating pipe which is coaxial with the blowing-out tower body and is rotatably arranged, the bottom of the rotating pipe is sealed, a plurality of communicating pipes communicated with an inner cavity of the rotating pipe are uniformly distributed on the circumferential wall of the rotating pipe in the circumferential direction, one end of each communicating pipe is sealed, and a plurality of spraying heads are uniformly distributed on the outer wall of each communicating pipe in the axial direction of the communicating pipe; and water injection nozzles of the plurality of spray headers are arranged upwards. The stripping tower for bromine production solves the problems that the contact time of oxidation liquid and air is short, the contact area is small and the contact effect is poor when the existing stripping tower for bromine production is used for producing bromine; the quality of a product is influenced due to the fact that more particulate matters are contained in the air, and the cleaning process is tedious when the particulate matters are cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of bromine production, in particular to a blowing tower for bromine production with a flow blocking effect. Background Art

[0002] Bromine is a kind of important material in the chemical industry, mainly used for preparing bromides, and used as common analytical reagents, oxidants, absorbents for ethylene and heavy hydrocarbons, and brominating agents for organic synthesis in the fields of medicine, pesticides, dyes, spices, photographic materials, fire extinguishing agents, mineral processing, metallurgy, leather tanning, water purification, etc.

[0003] In the bromine production process, brine is extracted by a brine pump, and dilute acid and chlorine are added from the outlet pipe of the brine pump in sequence. The bromide ions in the brine in the pipe are oxidized into elemental bromine by the acid and chlorine. The oxidized brine (oxidation liquid) is sent to the top of the blowing tower through the pipeline. The oxidation liquid is sprayed downward through the spray head on the top of the blowing tower, and contacts with the air from bottom to top (blown in from the bottom of the blowing tower by the blower), blowing out the free bromine, and blowing out from the top of the tower and flowing into the absorption tower.

[0004] The existing bromine production blow-off tower gradually exposed its shortcomings during use, mainly in the following aspects:

[0005] First, the oxidizing liquid has a certain speed after being sprayed out from the spray head, and under the action of its own gravity, the oxidizing liquid falls quickly, resulting in a shorter contact time between the oxidizing liquid and the air. In addition, the wind blown out by the blower flows in streams, and the gas distribution is uneven. The range of the oxidizing liquid sprayed by the spray head is fixed, and the oxidizing liquid is unevenly distributed, resulting in a small contact area between the oxidizing liquid and the air, poor contact effect, and affecting the production of bromine.

[0006] Second, when the blower is blowing, fine particles such as external dust can easily enter the tower through the blower, resulting in more particles attached to the inner wall of the blowing tower. Some particles will enter the absorption tower along with free bromine under the influence of air, affecting the quality of the product. Therefore, operators are required to regularly use cleaning tools to clean the particles in the blowing tower. The cleaning process is cumbersome, time-consuming and labor-intensive.

[0007] In summary, the existing technology 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 blowing tower for bromine production with a flow blocking effect, which can reduce the flow rate of the oxidizing liquid, so that the oxidizing liquid is fully in contact with the air, and can also achieve uniform liquid distribution and uniform air distribution, thereby improving the contact effect between the oxidizing liquid and the air;

[0009] The absorption tower can also filter particulate matter in the air, reduce the labor intensity of operators and improve the quality of products.

[0010] In order to solve the above problems, the utility model provides the following technical solutions:

[0011] A bromine production blow-out tower with a flow-blocking effect comprises a fixed blow-out tower body, two sides of the blow-out tower body are respectively provided with an air intake assembly and a brine pump connected to the inner cavity thereof, and a mixing mechanism is provided inside the blow-out tower body.

[0012] The mixing mechanism can achieve full contact between the oxidizing liquid and the air, thereby improving the contact effect between the oxidizing liquid and the air; the air intake assembly can filter the particulate matter in the air entering the blowing tower body;

[0013] The mixing mechanism comprises a rotating tube coaxial with the blowing tower body and rotatably arranged, the bottom of the rotating tube is sealed, a plurality of connecting tubes connected to the inner cavity of the rotating tube are evenly distributed on the peripheral wall of the rotating tube along its circumference, one end of the connecting tube is sealed, a plurality of spray heads are evenly distributed on the outer wall of the connecting tube along its axial direction, and the water spraying ports of the plurality of spray heads are all arranged upwards,

[0014] A lower conical cylinder is coaxially fixed inside the blowing tower body and abuts against its inner wall. The end of the lower conical cylinder with a smaller diameter is sealed and is arranged downward. A plurality of vent holes are evenly distributed on the outer wall of the lower conical cylinder, and the diameter of the vent hole is proportional to the distance from the vent hole to the axis of the lower conical cylinder.

[0015] The upper port of the rotating tube extends through the blowing tower body to the outside and is connected to the brine pump. The rotating tube is rotatably connected to the blowing tower body. An exhaust pipe connected to the air intake assembly is coaxially fixed below the lower conical tube.

[0016] A flow-blocking component is also provided between the rotating tube and the lower conical cylinder.

[0017] As an optimized solution, the flow blocking component includes a fixed circular plate coaxial with the blowing tower body and fixedly arranged, the outer wall of the fixed circular plate abuts against the inner wall of the blowing tower body, and a plurality of evenly distributed ventilation pipes are vertically fixed at the bottom of the fixed circular plate, and the upper ports of the ventilation pipes pass through the fixed circular plate and extend to the outside.

[0018] Two upper conical cylinders are coaxially fixed inside the vent pipe and abut against the inner wall thereof. The end with a smaller diameter of the upper conical cylinder is sealed and arranged downward. The outer wall of the upper conical cylinder is evenly distributed with a plurality of exhaust holes that penetrate through it.

[0019] As an optimized solution, two upper scrapers are provided above the fixed circular plate and rotate along its axis, which are in frictional contact with the inner wall of the blowing tower body. The top and bottom of the two upper scrapers are in frictional contact with the top of the blowing tower body and the top of the fixed circular plate respectively.

[0020] As an optimized solution, the top and bottom surfaces of the ventilation pipe are flush with the top and bottom surfaces of the fixed circular plate, and the two upper scrapers are symmetrically arranged along the axial section of the blowing tower body. The bottoms of the two upper scrapers are fixedly connected to the same lower scraper that is in frictional contact with the top of the fixed circular plate.

[0021] As an optimized solution, the air intake assembly includes a blower and a screening box which are connected in sequence, a filter plate which abuts against the inner wall of the screening box is fixed vertically in the screening box, and a cleaning brush which is in frictional contact with the surface of the filter plate is provided in the screening box for vertical reciprocating sliding.

[0022] The opposite ends of the screening box are fixed with air inlet pipes connected to its inner cavity, one of the air inlet pipes is connected to the air outlet of the blower, and the other air inlet pipe passes through the blowing tower body and is connected to the exhaust pipe.

[0023] As an optimized solution, an upper square tube is vertically fixed at the bottom of the screening box, the upper port of the upper square tube passes through the screening box and extends to the inside, a detachable lower square tube is sleeved on the outer wall of the upper square tube, and the outer wall of the upper square tube and the inner wall of the lower square tube are rubbed against each other.

[0024] A collecting box connected to the bottom of the lower square tube is fixedly provided.

[0025] As an optimized solution, the lower port of the exhaust pipe is sealed, and the sealed end of the exhaust pipe is fixedly provided with a solenoid valve connected to the inner cavity thereof.

[0026] As an optimized solution, the top and bottom of the blowing tower body are respectively provided with an air outlet pipe and a waste discharge pipe connected to the inner cavity thereof.

[0027] As an optimized solution, a rotating joint is fixedly provided on the top of the blowing tower body, one end of the rotating joint extends into the rotating tube and is rotatably connected to the rotating tube, and the other end of the rotating joint is connected to the brine pump through a water pipe.

[0028] As an optimized solution, two sliding blocks are provided on one of the inner walls of the screening box for vertical reciprocating sliding, and both sliding blocks are fixedly connected to the cleaning brush.

[0029] Compared with the prior art, the beneficial effects of the utility model are:

[0030] 1. The mixing mechanism can reduce the flow rate of the oxidizing liquid, so that the oxidizing liquid can fully contact with the air, and at the same time can achieve uniform liquid distribution and uniform air distribution, thereby improving the contact effect between the oxidizing liquid and the air;

[0031] 2. The air intake assembly can filter the particulate matter in the air, reduce the labor intensity of operators and improve the quality of products. 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 structural schematic diagram of the utility model;

[0034] Figure 2 It is a structural schematic diagram of the mixing mechanism of the utility model;

[0035] Figure 3 It is a structural schematic diagram of the lower conical cylinder of the utility model;

[0036] Figure 4 It is a structural schematic diagram of the flow-blocking component of the utility model;

[0037] Figure 5 It is a structural schematic diagram of the filter plate of the utility model.

[0038] In the figure: 1-waste discharge pipe; 2-blower; 3-air intake assembly; 4-blowing tower body; 5-driving motor; 6-first driving wheel; 7-first transmission belt; 8-air outlet pipe; 9-rotating joint; 10-first driven wheel; 11-support plate; 12-water pipe; 13-brine pump; 14-air intake pipe; 15-mixing mechanism; 16-connecting rod; 17-rotating pipe; 18-sprinkler head; 19-connecting pipe; 20-fixed shaft; 21-upper scraper; 22-lower scraper; 23-blocking Flow assembly; 24-lower conical cylinder; 25-vent; 26-exhaust pipe; 27-solenoid valve; 28-exhaust hole; 29-upper conical cylinder; 30-vent; 31-fixed circular plate; 32-collection box; 33-lower square tube; 34-upper square tube; 35-filter plate; 36-cleaning brush; 37-screening box; 38-second driven wheel; 39-second driving wheel; 40-control motor; 41-second transmission belt; 42-sliding block; 43-reciprocating screw rod; 44-limiting bolt. 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 bromine production blowing tower with a flow blocking effect comprises a fixed blowing tower body 4, an air intake assembly 3 and a brine pump 13 connected to the inner cavity of the blowing tower body 4 are respectively arranged on both sides of the blowing tower body 4, and a mixing mechanism 15 is arranged inside the blowing tower body 4.

[0041] The mixing mechanism 15 can achieve full contact between the oxidizing liquid and the air, thereby improving the contact effect between the oxidizing liquid and the air; the air intake assembly 3 can filter the particulate matter in the air entering the blowing tower body 4;

[0042] The mixing mechanism 15 includes a rotating tube 17 which is coaxial with the blowing tower body 4 and is rotatably arranged. The bottom of the rotating tube 17 is sealed. A plurality of connecting tubes 19 which are connected to the inner cavity of the rotating tube 17 are evenly distributed along the circumference of the rotating tube 17. One end of the connecting tube 19 is sealed. A plurality of spray heads 18 are evenly distributed along the axial direction of the connecting tube 19 on the outer wall of the connecting tube 19. The water spraying ports of the plurality of spray heads 18 are all arranged upward.

[0043] A lower conical cylinder 24 is coaxially fixed inside the blowing tower body 4 and abuts against its inner wall. The end of the lower conical cylinder 24 with a smaller diameter is sealed and is arranged downward. A plurality of vent holes 25 are evenly distributed on the outer wall of the lower conical cylinder 24, and the diameter of the vent hole 25 is proportional to the distance from the vent hole 25 to the axis of the lower conical cylinder 24.

[0044] The upper end of the rotating tube 17 passes through the blowing tower body 4 and extends to the outside, and is connected to the brine pump 13. The rotating tube 17 is rotatably connected to the blowing tower body 4. An exhaust pipe 26 connected to the air intake assembly 3 is coaxially fixed below the lower conical cylinder 24.

[0045] A flow blocking component 23 is also provided between the rotating tube 17 and the lower conical cylinder 24;

[0046] The spray head 18 sprays the oxidizing liquid upward, which can reduce the falling speed of the oxidizing liquid and increase the air time of the oxidizing liquid. When the connecting pipe 19 rotates, the liquid can be evenly distributed inside the blowing tower body 4.

[0047] When the exhaust pipe 26 blows air toward the lower conical cylinder 24, the air in the form of strands diffuses to the surroundings under the action of the conical surface of the lower conical cylinder 24. At the same time, the aperture of the vent holes 25 in the central area of ​​the lower conical cylinder 24 is smaller than the aperture of the vent holes 25 in the surrounding area, thereby increasing the air content in the surrounding area and achieving uniform air distribution.

[0048] The flow blocking component 23 includes a fixed circular plate 31 which is coaxial with the blowing tower body 4 and fixedly arranged. The outer wall of the fixed circular plate 31 abuts against the inner wall of the blowing tower body 4. A plurality of evenly distributed ventilation pipes 30 are vertically fixedly arranged at the bottom of the fixed circular plate 31. The upper end of the ventilation pipe 30 passes through the fixed circular plate 31 and extends to the outside.

[0049] Two upper conical cylinders 29 are coaxially fixed inside the vent pipe 30 and abut against the inner wall thereof. The end of the upper conical cylinder 29 with a smaller diameter is sealed and is arranged downward. A plurality of exhaust holes 28 are evenly distributed on the outer wall of the upper conical cylinder 29.

[0050] After the initial contact, the brine drips onto the upper conical tube 29, which reduces the falling speed of the brine again. When the brine drops downward through the exhaust hole 28, it can fully contact with the upward flowing air.

[0051] Two upper scrapers 21 are provided above the fixed circular plate 31 and rotate along its axis to make friction contact with the inner wall of the blowing tower body 4. The top and bottom of the two upper scrapers 21 are respectively in friction contact with the top of the blowing tower body 4 and the top of the fixed circular plate 31.

[0052] The top and bottom surfaces of the ventilation pipe 30 correspond to and are flush with the top and bottom surfaces of the fixed circular plate 31 . The two upper scrapers 21 are also symmetrically arranged along the axial section of the blowing tower body 4 . The bottoms of the two upper scrapers 21 are fixedly connected to the same lower scraper 22 which is in frictional contact with the top of the fixed circular plate 31 .

[0053] The air intake assembly 3 includes a blower 2 and a screening box 37 which are connected in sequence. A filter plate 35 which abuts against the inner wall of the screening box 37 is vertically fixed therein. A cleaning brush 36 which is in frictional contact with the surface of the filter plate 35 is vertically reciprocatingly slidable therein.

[0054] The opposite ends of the screening box 37 are fixed with air inlet pipes 14 connected to the inner cavity thereof, one of the air inlet pipes 14 is connected to the air outlet of the blower 2, and the other air inlet pipe 14 passes through the blowing tower body 4 and is connected to the exhaust pipe 26;

[0055] The filter plate 35 can filter particulate matter in the air entering into the blowing tower body 4 , and the cleaning brush 36 can quickly clean the particulate matter adsorbed on the surface of the filter plate 35 .

[0056] An upper square tube 34 is vertically fixed to the bottom of the screening box 37. The upper end of the upper square tube 34 passes through the screening box 37 and extends to the inside. A detachable lower square tube 33 is mounted on the outer wall of the upper square tube 34. The outer wall of the upper square tube 34 and the inner wall of the lower square tube 33 are rubbed against each other.

[0057] A collecting box 32 connected to the lower square tube 33 is fixedly provided at the bottom thereof.

[0058] The lower end of the exhaust pipe 26 is sealed, and a solenoid valve 27 communicating with the inner cavity of the exhaust pipe 26 is fixedly disposed at the sealed end.

[0059] The top and bottom of the blowing tower body 4 are respectively provided with an air outlet pipe 8 and a waste discharge pipe 1 which are connected to the inner cavity thereof.

[0060] A rotary joint 9 is fixedly provided on the top of the blowing tower body 4 , one end of the rotary joint 9 extends into the rotary tube 17 and is rotatably connected to the rotary tube 17 , and the other end of the rotary joint 9 is connected to the brine pump 13 through the water pipe 12 .

[0061] The rotary joint 9 is fixedly connected to the blowing tower body 4 via a support plate 11 .

[0062] A first driven wheel 10 is fixedly mounted on the outer wall of the rotating tube 17 , and a first driving wheel 6 is rotatably mounted on the side of the blowing tower body 4 along a vertical line. The first driving wheel 6 is connected to the first driven wheel 10 via a first transmission belt 7 .

[0063] A driving motor 5 is fixedly provided on the outer wall of the blowing tower body 4 , and an output end of the driving motor 5 is fixedly connected to the first driving wheel 6 .

[0064] A vertically arranged fixed shaft 20 is fixedly connected to the bottom of the rotating tube 17 , and an upper scraper 21 is fixedly connected to the fixed shaft 20 via a plurality of connecting rods 16 .

[0065] Two sliding blocks 42 are provided on one of the inner walls of the screening box 37 for vertical reciprocating sliding, and both sliding blocks 42 are fixedly connected to the cleaning brush 36 .

[0066] Two reciprocating screw rods 43 are provided at the inner bottom of the screening box 37 for rotation along the plumb line. One end of the two reciprocating screw rods 43 passes through the two sliding blocks 42 respectively and is threadedly connected with the two sliding blocks 42 accordingly.

[0067] The same end of the two reciprocating screw rods 43 passes through the screening box 37 and extends to the outer wall, and is respectively fixed with the second driving wheel 39 and the second driven wheel 38 . The second driving wheel 39 is connected to the second driven wheel 38 through the second transmission belt 41 .

[0068] A control motor 40 is fixedly provided on the top of the screening box 37 , and an output end of the control motor 40 is fixedly connected to the second driving wheel 39 .

[0069] Relative ends of the lower square tube 33 are penetrated by limiting bolts 44 threadedly connected thereto. One end of the limiting bolt 44 passes through the upper square tube 34 and is threadedly connected to the upper square tube 34 .

[0070] T-shaped slide plates are fixedly provided at the ends of the two sliding blocks 42 , and T-shaped slide grooves matching with the T-shaped slide plates are provided on the inner wall of the screening box 37 .

[0071] The working principle of this device is:

[0072] When ventilation is introduced into the blowing tower body 4, the blower 2 draws air from the outside, and the air enters the screening box 37 through the air inlet pipe 14, and the filter plate 35 filters the particles in the air. The filtered air enters the inside of the blowing tower body 4 through the ventilation pipe 30. After the filter plate 35 has been used for a period of time, the control motor 40 drives the second driving wheel 39, the second transmission belt 41, the second driven wheel 38 and the two reciprocating screws 43 to rotate, thereby controlling the two sliding blocks 42 and the cleaning brush 36 to slide back and forth vertically. The cleaning brush 36 cleans the particles adsorbed on the surface of the filter plate 35. The cleaned particles pass through the upper square tube 34 and the lower square tube 33 in turn and enter the collecting box 32 for collection, thereby filtering the particles in the air, reducing the labor intensity of the operators, and improving the quality of the product.

[0073] The filtered air enters the exhaust pipe 26 through the vent pipe 30, and the air in the exhaust pipe 26 moves upward. When the air in the form of strands contacts the conical surface of the lower conical cylinder 24, the air diffuses to the surroundings, and the aperture of the vent holes 25 in the central area of ​​the lower conical cylinder 24 is smaller than the aperture of the vent holes 25 in the surrounding areas, thereby increasing the air content in the surrounding areas, so that the air in the blowing tower body 4 is evenly distributed and moves upward. The brine pump 13 transports the oxidizing liquid to the inside of the blowing tower body 4 through the water pipe 12. The oxidizing liquid passes through the rotary joint 9, the rotating tube 17 and the connecting tube 19 in turn, and is sprayed out by the spray head 18. At the same time, the driving motor 5 drives the first driving wheel 6, the first transmission belt 7, the first driven wheel 10, the rotating tube 17, the connecting tube 19 and the spray head 18 to rotate, and the spray head 18 evenly sprays the oxidizing liquid to the inside of the blowing tower body 4.

[0074] After passing through the fixed circular plate 31, the air continues to move upward. After moving upward to the highest position, the oxidizing liquid falls freely and contacts the upwardly moving air. The spray head 18 sprays the oxidizing liquid upward, which increases the air time of the oxidizing liquid, thereby increasing the contact time between the oxidizing liquid and the air. After the initial contact, part of the oxidizing liquid drips onto the upper conical cylinder 29 in the vent pipe 30. Under the action of gravity, the oxidizing liquid drips downward through the exhaust hole 28 on the upper conical cylinder 29, further reducing the descending speed of the oxidizing liquid. At the same time, the oxidizing liquid continues to contact with the upwardly moving air.

[0075] When rotating, the rotating tube 17 can drive the fixed shaft 20, the upper scraper 21 and the lower scraper 22 to rotate, thereby cleaning the oxidizing liquid remaining on the inner wall of the blowing tower body 4 and the top of the fixed circular plate 31, and the cleaned oxidizing liquid enters the ventilation pipe 30 and drips downward, and the oxidizing liquid dripping downward from the ventilation pipe 30 contacts with the air passing through the lower conical tube 24 again, and finally the oxidizing liquid after full contact flows into the bottom of the blowing tower body 4 through the ventilation hole 25 on the lower conical tube 24 and is collected. When there is a lot of waste liquid in the exhaust pipe 26, the solenoid valve 27 is opened to clean the liquid in the exhaust pipe 26, thereby reducing the flow velocity of the oxidizing liquid, making the oxidizing liquid fully contact with the air, and at the same time achieving uniform liquid distribution and uniform air distribution, thereby improving the contact effect between the oxidizing liquid and the air.

[0076] 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 bromine production blow tower with a flow blocking effect, characterized in that: The invention comprises a fixed blowing tower body (4), wherein an air intake assembly (3) and a brine pump (13) which are connected to the inner cavity of the blowing tower body (4) are respectively arranged on both sides of the blowing tower body (4), and a mixing mechanism (15) is arranged inside the blowing tower body (4). The mixing mechanism (15) can achieve full contact between the oxidizing liquid and the air, thereby improving the contact effect between the oxidizing liquid and the air; the air intake component (3) can filter particulate matter in the air entering the blowing tower body (4); The mixing mechanism (15) comprises a rotating tube (17) which is coaxial with the blowing tower body (4) and is rotatably arranged. The bottom of the rotating tube (17) is sealed. A plurality of connecting tubes (19) which are connected to the inner cavity of the rotating tube (17) are evenly distributed on the peripheral wall of the rotating tube (17) along its circumference. One end of the connecting tube (19) is sealed. A plurality of spray heads (18) are evenly distributed on the outer wall of the connecting tube (19) along its axial direction. The water spraying ports of the plurality of spray heads (18) are all arranged upward. A lower conical cylinder (24) is coaxially fixedly disposed inside the blowing tower body (4) and abuts against the inner wall thereof. The end of the lower conical cylinder (24) with a smaller diameter is sealed and is disposed downward. A plurality of vent holes (25) are evenly distributed on the outer wall of the lower conical cylinder (24) and penetrated therethrough. The diameter of the vent hole (25) is proportional to the distance from the vent hole (25) to the axis of the lower conical cylinder (24). The upper end of the rotating tube (17) passes through the blowing tower body (4) and extends to the outside, and is connected to the brine pump (13). The rotating tube (17) is rotatably connected to the blowing tower body (4). An exhaust pipe (26) connected to the air intake assembly (3) is coaxially fixed below the lower conical cylinder (24). A flow-blocking component (23) is also provided between the rotating tube (17) and the lower conical cylinder (24).

2. A bromine production blow-out tower with a flow-blocking effect according to claim 1, characterized in that: The flow blocking component (23) comprises a fixed circular plate (31) which is coaxial with the blowing tower body (4) and fixedly arranged, the outer wall of the fixed circular plate (31) abuts against the inner wall of the blowing tower body (4), a plurality of evenly distributed ventilation pipes (30) are vertically fixedly arranged at the bottom of the fixed circular plate (31), the upper end of the ventilation pipe (30) passes through the fixed circular plate (31) and extends to the outside, Two upper conical cylinders (29) are coaxially fixedly disposed inside the ventilation pipe (30) and are abutted against the inner wall thereof. The end of the upper conical cylinder (29) with a smaller diameter is sealed and is disposed downward. The outer wall of the upper conical cylinder (29) is evenly distributed with a plurality of exhaust holes (28) that penetrate therethrough.

3. A bromine production blow-out tower with a flow-blocking effect according to claim 2, characterized in that: Two upper scrapers (21) are provided above the fixed circular plate (31) and rotate along its axis, and are in frictional contact with the inner wall of the blowing tower body (4). The top and bottom of the two upper scrapers (21) are in frictional contact with the top of the blowing tower body (4) and the top of the fixed circular plate (31) respectively.

4. A bromine production blow-out tower with a flow-blocking effect according to claim 3, characterized in that: The top and bottom surfaces of the ventilation pipe (30) correspond to and are flush with the top and bottom surfaces of the fixed circular plate (31); the two upper scrapers (21) are also symmetrically arranged along the axial section of the blowing tower body (4); and the bottoms of the two upper scrapers (21) are fixedly connected to a lower scraper (22) that is in frictional contact with the top of the fixed circular plate (31).

5. A bromine production blowing tower with a flow blocking effect according to claim 4, characterized in that: The air intake assembly (3) comprises a blower (2) and a screening box (37) which are connected in sequence, a filter plate (35) is vertically fixed in the screening box (37) and abuts against the inner wall thereof, and a cleaning brush (36) is vertically reciprocatingly slidably provided in the screening box (37) and is in frictional contact with the surface of the filter plate (35). The opposite ends of the screening box (37) are fixedly provided with air intake pipes (14) connected to the inner cavity thereof, one of the air intake pipes (14) is connected to the air outlet of the blower (2), and the other air intake pipe (14) passes through the blowing tower body (4) and is connected to the exhaust pipe (26).

6. A bromine production blowing tower with a flow blocking effect according to claim 5, characterized in that: An upper square tube (34) is vertically fixed at the bottom of the screening box (37), an upper end of the upper square tube (34) passes through the screening box (37) and extends to the inside, a lower square tube (33) is detachably mounted on the outer wall of the upper square tube (34), the outer wall of the upper square tube (34) and the inner wall of the lower square tube (33) are frictionally abutted against each other, A collecting box (32) in communication with the lower square tube (33) is fixedly provided at the bottom thereof.

7. A bromine production blowing tower with a flow blocking effect according to claim 6, characterized in that: The lower end of the exhaust pipe (26) is sealed, and a solenoid valve (27) communicating with the inner cavity of the exhaust pipe (26) is fixedly provided at the sealed end.

8. A bromine production blowing tower with a flow blocking effect according to claim 7, characterized in that: The top and bottom of the blowing tower body (4) are respectively provided with an air outlet pipe (8) and a waste discharge pipe (1) which are connected to the inner cavity thereof.

9. A bromine production blowing tower with a flow blocking effect according to claim 8, characterized in that: A rotating joint (9) is fixedly provided on the top of the blowing tower body (4), one end of the rotating joint (9) extends into the rotating tube (17) and is rotatably connected to the rotating tube (17), and the other end of the rotating joint (9) is connected to the brine pump (13) through a water pipe (12).

10. A bromine production blowing tower with a flow blocking effect according to claim 9, characterized in that: Two sliding blocks (42) are provided on one inner wall of the screening box (37) for vertical reciprocating sliding, and the two sliding blocks (42) are fixedly connected to the cleaning brush (36).

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