Spray tower for producing diphenyl azide phosphate

Abstract

The invention discloses a spray tower for producing diphenyl azide phosphate, and relates to the technical field of spray towers, the spray tower comprises a tower body, the bottom of the side end of the tower body is provided with a gas inlet pipe, the top of the tower body is provided with a gas outlet pipe, the inner wall of the tower body is fixedly provided with a circular plate and a connecting ring, the connecting ring is located above the circular plate, and the circular plate is fixedly connected with the gas outlet pipe. A circular frame is arranged between the circular plate and the connecting ring, through holes are formed in the circumference of the surface of the circular plate at equal intervals, the circular frame comprises a plurality of circular rings and fixing pieces, the circular rings are distributed in a concentric circle mode, and the circular rings are fixedly connected through the fixing pieces. According to the invention, by cooperatively adjusting the opening degree of the gas outlet pipe, the gaps of the through holes of the circular plate and the gaps of the diffusion ports of the fan-shaped assembly, the gas-liquid flowing and reaction conditions in the spray tower can be accurately controlled, so that the waste gas and the spray liquid are fully contacted and reacted, and the waste gas treatment efficiency and quality in the production process of diphenyl azido phosphate are improved.

Description

Technical Field

[0001] The invention relates to the technical field of spray towers, in particular to a spray tower for producing diphenyl phosphoazide. Background Art

[0002] The spray tower exists as a treatment equipment for environmental waste gas treatment. According to the working principle, it is divided into circulating water spray tower, alkali spray tower, acid spray tower (alias: pickling tower). In the production process of diphenyl phosphate azide, a large amount of waste gas containing harmful substances will be generated. If these waste gases are directly discharged without effective treatment, they will cause serious harm to the environment and human health. Therefore, a spray tower is needed.

[0003] The current spray tower for producing diphenyl phosphoazide is found to have at least the following technical problems:

[0004] First, the traditional spray tower has some obvious shortcomings when treating the waste gas generated in the production process of diphenyl phosphate azide. Its internal structure is relatively simple, and it usually relies on fixed gas-liquid contact components and a single spraying method for treatment. It is difficult to flexibly adjust the treatment parameters according to the actual situation of the waste gas. For example, the outlet opening of the traditional spray tower is often fixed, and it cannot be adjusted in real time according to changes in waste gas flow and concentration, resulting in unstable pressure and air flow velocity in the tower, affecting the waste gas treatment effect. At the same time, the structure of the components in the tower used to promote gas-liquid mixing and diffusion is fixed, and the gas-liquid contact area and reaction conditions cannot be changed according to different working conditions, resulting in insufficient gas-liquid contact and reducing the removal efficiency of harmful substances.

[0005] Second, in addition, traditional spray towers have poor adaptability when dealing with changes in exhaust gas composition and treatment requirements, requiring large-scale modifications or equipment replacement, which increases costs. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the present invention provides a spray tower for producing diphenyl phosphohydride to solve the above-mentioned technical problems.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A spray tower for producing diphenyl phosphate azide, comprising a tower body, an air inlet pipe is arranged at the bottom of the side end of the tower body, an air outlet pipe is arranged at the top of the tower body, a circular plate and a connecting ring are fixedly installed on the inner wall of the tower body, the connecting ring is located above the circular plate, a circular frame is arranged between the circular plate and the connecting ring, through holes are opened at equal intervals on the surface circumference of the circular plate, the circular frame comprises a plurality of circular rings and fixing parts, each of the circular rings is distributed in concentric circles, each of the circular rings is fixedly connected by fixing parts, and each of the circular rings A plug rod matched with the through hole is fixedly installed at the bottom end, each of the plug rods is in a conical shape, a cylinder is arranged in the middle of the connecting ring, a circular hole is opened on the surface of the cylinder, support rods and partition plates are fixedly installed at equal distances between the cylinder and the connecting ring, a plurality of fan-shaped components are arranged at equal distances on the inner circumference of the connecting ring, the fan-shaped components include a plurality of diffusion plates, each of the diffusion plates is in an arc shape, the inner surface of each of the diffusion plates is a sloped design, and a diffusion port is formed between each adjacent diffusion plate.

[0011] Preferably, a round rod is fixedly mounted on the upper end of each of the diffusion plates, a stopper is fixedly mounted on the top end of each of the round rods, a connecting sleeve is fixedly mounted on each of the round rods, and each of the connecting sleeves is movably mounted on the surface of an adjacent round rod.

[0012] Preferably: each of the fan-shaped components is located between adjacent partition boards, each of the support rods is used to support the fan-shaped components, a lifting rod is movably passed through the circular hole, the bottom end of the lifting rod is fixedly connected to the middle part of the upper end of the circular frame, and the upper end of the lifting rod is fixedly connected to a fixing rod.

[0013] Preferably: a protective shell is provided at the outer end of the tower body, the fixed rod is slidably installed in the protective shell, a cylinder is fixedly installed in the protective shell, the telescopic rod of the cylinder is fixedly connected to the bottom end of the fixed rod, four connecting blocks are fixedly installed at equal intervals on the outer end of the lifting rod, and sliding grooves matching the connecting blocks are opened at equal intervals on the surface of the cylinder, each of the connecting blocks is slidably installed in the sliding groove, and each of the connecting blocks is fixedly connected to the innermost diffuser plate in each of the fan-shaped components.

[0014] Preferably: a valve plate is provided in the air outlet pipe, connecting shafts are fixedly installed at both ends of the valve plate, each of the connecting shafts is rotatably connected to the air outlet pipe, a gear is fixedly installed on each connecting shaft, two sliding rods are slidably inserted into the top of the tower body, a rack is fixedly installed on each sliding rod, and each of the gears is respectively meshed with the rack.

[0015] Preferably: two sealing sleeves are embedded in the top of the tower body, each of the sliding rods movably passes through the sealing sleeves, the two sliding rods are fixedly connected to the lifting rod, a liquid storage tank is provided at the bottom end of the tower body, a circulating water pump is provided on the liquid storage tank, a main pipe is provided on the circulating water pump, a plurality of branch pipes are provided in the tower body, the branch pipes are all located above the connecting ring and the lifting rod, the main pipe is connected to the branch pipe, and a plurality of nozzles are provided on the branch pipe.

[0016] (III) Beneficial effects

[0017] 1: By synergistically adjusting the opening of the gas outlet pipe, the gap between the circular plate holes and the gap between the diffuser ports of the fan-shaped component, the gas-liquid flow and reaction conditions inside the spray tower can be accurately controlled, so that the waste gas and the spray liquid can fully contact and react, thereby improving the efficiency and quality of waste gas treatment in the production process of diphenyl phosphate azide.

[0018] Second: The spray tower can be flexibly adjusted according to the different concentrations, flow rates and components of the exhaust gas. For example, for high-concentration, high-flow exhaust gas, the outlet pipe opening can be appropriately reduced, the gap between the circular plate holes and the gap between the diffuser ports of the fan-shaped components can be increased to enhance the gas-liquid contact and reaction effects. For low-concentration, low-flow exhaust gas, the reverse adjustment can be made, which achieves effective adaptation to a variety of working conditions and improves the versatility and practicality of the equipment.

[0019] 3. The support rods on the cylinder and the blocks at the top of the rods respectively provide stable support and limit for the bottom and top of the fan-shaped assembly, so that the diffuser plate can maintain a stable stepped distribution before and after adjustment, effectively resist gas impact and other external forces, reduce the risk of component deformation and dislocation, ensure the stability and reliability of the spray tower in long-term operation, and reduce the maintenance cost and downtime of the equipment.

[0020] 4: The design of the fan-shaped component and the adjustable diffuser gap can flexibly adjust the diffusion path and speed of the gas in the tower according to the actual working conditions, so that the contact between the gas and the spray liquid is more uniform and sufficient. At the same time, the variable through-hole gap on the circular plate also helps to further optimize the gas-liquid distribution in the tower, avoiding the problem of insufficient local gas-liquid contact, thereby improving the uniformity and consistency of the entire treatment process.

[0021] 5. By precisely adjusting each component to meet different exhaust gas treatment requirements, excessive spraying and unnecessary energy consumption are avoided. On the premise of meeting the treatment effect, the optimal utilization of resources is achieved, the operating power and liquid consumption of the circulating water pump are reduced, thereby achieving energy saving and reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0023] Figure 1 This is a structural diagram of the entire spray tower for producing diphenylphosphoryl azide according to the present invention;

[0024] Figure 2 It is a structural diagram of a tower body cut away from the present invention;

[0025] Figure 3 It is a structural diagram of the connecting ring of the present invention;

[0026] Figure 4 It is a structural diagram of the circular frame of the present invention;

[0027] Figure 5 It is a structural diagram of the cylinder of the present invention;

[0028] Figure 6 It is a structural diagram of the fan-shaped component of the present invention;

[0029] Figure 7 It is a structural diagram of the valve plate of the present invention;

[0030] Figure 8 is a structural diagram of the slide bar of the present invention;

[0031] Fig. 9 It is a structural diagram of the lifting rod of the present invention.

[0032] Legend: 1. Tower body; 11. Air inlet pipe; 12. Air outlet pipe; 13. Liquid storage tank; 14. Circulating water pump; 15. Main pipe; 16. Sealing sleeve; 17. Protective shell; 2. Round plate; 21. Through hole; 3. Round frame; 31. Round ring; 32. Fixing piece; 33. Insert rod; 4. Connecting ring; 41. Cylinder; 42. Round hole; 43. Support rod; 44. Partition plate; 5. Fan-shaped assembly; 51. Diffuser plate; 52. Diffuser port; 53. Round rod; 54. Connecting sleeve; 55. Stopper; 6. Lifting rod; 61. Connecting block; 62. Fixing rod; 64. Cylinder; 7. Valve plate; 71. Connecting shaft; 72. Gear; 8. Sliding rod; 81. Rack; 9. Branch pipe. DETAILED DESCRIPTION

[0033] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] Embodiment: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, in view of the problems existing in the prior art, the present invention provides a spray tower for producing diphenyl phosphate azide, comprising a tower body 1, an air inlet pipe 11 is arranged at the bottom of the side end of the tower body 1, an air outlet pipe 12 is arranged at the top of the tower body 1, a circular plate 2 and a connecting ring 4 are fixedly installed on the inner wall of the tower body 1, the connecting ring 4 is located above the circular plate 2, a circular frame 3 is arranged between the circular plate 2 and the connecting ring 4, through holes 21 are opened at equal intervals on the surface circumference of the circular plate 2, the circular frame 3 includes a plurality of circular rings 31 and fixing members 32, each of the circular rings 31 is distributed in concentric circles, each of the circular rings 31 is fixedly connected by the fixing members 32, a plug rod 33 adapted to the through hole 21 is fixedly installed at the bottom end of each circular ring 31, each plug rod 33 is in a conical shape, and a connecting ring 4 is arranged in the middle. There is a cylinder 41, a circular hole 42 is opened on the surface of the cylinder 41, a support rod 43 and a partition plate 44 are fixedly installed at equal intervals between the cylinder 41 and the connecting ring 4, a plurality of fan-shaped components 5 are evenly arranged on the inner circumference of the connecting ring 4, the fan-shaped component 5 includes a plurality of diffusers 51, each diffuser 51 is in an arc shape, the inner surface of each diffuser 51 is a bevel design, a diffuser port 52 is formed between each adjacent diffuser plate 51, a round rod 53 is fixedly installed on the upper end of each diffuser plate 51, a stopper 55 is fixedly installed on the top of each round rod 53, a connecting sleeve 54 is fixedly installed on each round rod 53, each connecting sleeve 54 is movably sleeved on the surface of the adjacent round rod 53, each fan-shaped component 5 is respectively located between adjacent partition plates 44, each The support rods 43 are used to support the fan-shaped components 5. A lifting rod 6 is movably passed through the circular hole 42. The bottom end of the lifting rod 6 is fixedly connected to the middle part of the upper end of the circular frame 3. The upper end of the lifting rod 6 is fixedly connected to the fixing rod 62. A protective shell 17 is provided at the outer end of the tower body 1. The fixing rod 62 is slidably installed in the protective shell 17. A cylinder 64 is fixedly installed in the protective shell 17. The telescopic rod of the cylinder 64 is fixedly connected to the bottom end of the fixing rod 62. Four connecting blocks 61 are fixedly installed at equal intervals on the outer end of the lifting rod 6. Slide grooves that are compatible with the connecting blocks 61 are equidistantly provided on the surface circumference of the cylinder 41. Each connecting block 61 is slidably installed in the slide groove, and each connecting block 61 is fixedly connected to the innermost diffuser plate 51 in each fan-shaped component 5. A valve plate 7 is provided in the air outlet pipe 12, and connecting shafts 71 are fixedly installed at both ends of the valve plate 7, each connecting shaft 71 is rotatably connected to the air outlet pipe 12, and a gear 72 is fixedly installed on each connecting shaft 71. Two slide bars 8 are slidably inserted into the top of the tower body 1, and a rack 81 is fixedly installed on each slide bar 8. Each gear 72 is respectively engaged with the rack 81. Two sealing sleeves 16 are embedded in the top of the tower body 1, and each slide bar 8 is movable through the sealing sleeve 16. The two slide bars 8 are fixedly connected to the lifting rod 6. A liquid storage tank 13 is provided at the bottom end of the tower body 1, and a circulating water pump 14 is provided on the liquid storage tank 13. A main pipe 15 is provided on the circulating water pump 14. A plurality of branch pipes 9 are provided in the tower body 1, and the branch pipes 9 are all located above the connecting ring 4 and the lifting rod 6.The main pipe 15 is connected to the branch pipe 9, and a plurality of nozzles are arranged on the branch pipe 9;

[0035] The waste gas generated in the production process of diphenyl phosphate azide enters the tower body 1 from the air inlet pipe 11. When it is necessary to adjust the treatment effect of the spray tower, it is achieved by adjusting the opening of the outlet pipe 12. Specifically, the cylinder 64 is started, and the telescopic rod of the cylinder 64 is extended, so that the fixed rod 62 moves up. The upward movement of the fixed rod 62 drives the lifting rod 6 to move up smoothly along the slide groove in the cylinder 41. The lifting rod 6 moves up and drives the two slide bars 8 to move up. The two slide bars 8 move up and drive the two racks 81 to move up synchronously. Since each rack 81 is respectively engaged with the corresponding gear 72, the upward movement of the two racks 81 drives the gear 72 to rotate. The rotation of the gear 72 causes the valve plate 7 to rotate around the connecting shaft 71 as the axis, thereby changing the angle of the valve plate 7, realizing the precise adjustment of the opening of the outlet pipe 12, making the opening of the outlet pipe 12 smaller, thereby changing the gas pressure and flow rate distribution in the tower, and optimizing the waste gas treatment effect in the production process of diphenyl phosphate azide;

[0036] During the upward movement of the lifting rod 6, the circular frame 3 is driven to move upward synchronously. The circular frame 3 is composed of a plurality of circular rings 31 of different diameters and distributed in concentric circles, which are fixedly connected by fixing members 32. There is a gap between each circular ring 31. The upward movement of the circular frame 3 drives the insertion rod 33 to move upward. The insertion rod 33 is in a conical shape. As the insertion rod 33 moves upward, the fit between the insertion rod 33 and the through hole 21 on the circular plate 2 changes, so that the gap of the through hole 21 gradually increases. In this way, the resistance and flow distribution of the gas passing through the circular plate 2 can be adjusted, and the gas-liquid contact and reaction conditions in the tower can be further optimized.

[0037] When the lifting rod 6 moves upward, it will drive the connecting block 61 to move upward. The connecting block 61 is fixedly connected to the innermost diffuser plate 51 in the fan-shaped assembly 5. The upward movement of the connecting block 61 drives the innermost diffuser plate 51 to move upward. Since each diffuser plate 51 is connected in sequence through the connecting sleeve 54, the upward movement of the innermost diffuser plate 51 drives the adjacent diffuser plates 51 to move upward in sequence through the connecting sleeve 54, so that the gap between the diffuser ports 52 becomes larger. In the initial state, several diffuser plates 51 are distributed in a stepped manner. After the adjustment is completed, they are still distributed in a stepped manner, but the gap between the diffuser ports 52 is in an expanded state. This design can flexibly adjust the diffusion path and speed of the gas in the tower according to different exhaust gas treatment requirements, thereby improving the uniformity and sufficiency of gas-liquid contact.

[0038] The support rod 43 fixedly mounted on the cylinder 41 plays a stable supporting role on the bottom of the fan-shaped assembly 5, ensuring that the plurality of diffusers 51 are distributed in a stepped manner in the initial state. After the adjustment is completed, since a stopper 55 is fixedly mounted on the top of each round rod 53, it plays a role of limiting support, so that in the adjusted state of the fan-shaped assembly 5, the plurality of diffusers 51 can still maintain a stable stepped distribution, and will not be deformed or dislocated due to the impact of gas or other external forces, thereby ensuring the stability and reliability of the spray tower during operation;

[0039] During the entire adjustment process, by collaboratively changing the opening of the air outlet pipe 12, the gap of the through hole 21 on the circular plate 2, and the gap of the diffuser 52 in the fan-shaped component 5, precise control of the gas-liquid flow and reaction conditions inside the spray tower is achieved to meet the requirements of waste gas treatment with different concentrations, flow rates and components, thereby improving the efficiency and quality of waste gas treatment. At the same time, the circulating water pump 14 in the liquid storage tank 13 transports the liquid to the branch pipe 9 through the main pipe 15, and the liquid is sprayed out by the nozzle to fully contact with the waste gas, thereby achieving purification of the waste gas.

[0040] Working principle:

[0041] In the first step, the waste gas generated during the production of diphenyl phosphate azide enters the tower body 1 from the air inlet pipe 11. When it is necessary to adjust the treatment effect of the spray tower, it is achieved by adjusting the opening of the outlet pipe 12. Specifically, the cylinder 64 is started, and the telescopic rod of the cylinder 64 is extended, so that the fixed rod 62 moves up. The upward movement of the fixed rod 62 drives the lifting rod 6 to move up smoothly along the slide groove in the cylinder 41. The lifting rod 6 moves up and drives the two slide bars 8 to move up. The two slide bars 8 move up and drive the two racks 81 to move up synchronously. Since each rack 81 is respectively engaged with the corresponding gear 72, the upward movement of the two racks 81 drives the gear 72 to rotate. The rotation of the gear 72 causes the valve plate 7 to rotate around the connecting shaft 71 as the axis, thereby changing the angle of the valve plate 7, realizing the precise adjustment of the opening of the outlet pipe 12, making the opening of the outlet pipe 12 smaller, thereby changing the gas pressure in the tower by 15%, changing the gas pressure and flow rate distribution in the tower, and optimizing the waste gas treatment effect during the production of diphenyl phosphate azide.

[0042] In the second step, during the upward movement of the lifting rod 6, the circular frame 3 will be driven to move upward synchronously. The circular frame 3 is composed of a number of circular rings 31 of different diameters and distributed in concentric circles, which are fixedly connected by fixing parts 32. There is a gap between each circular ring 31. The upward movement of the circular frame 3 drives the insertion rod 33 to move upward. The insertion rod 33 is conical in shape. As the insertion rod 33 moves upward, the coordination between it and the through hole 21 on the circular plate 2 changes, so that the gap of the through hole 21 gradually increases, which can adjust the resistance of the gas passing through the circular plate 2 to reduce 20% and increase the flow distribution by 25%, thereby further optimizing the gas-liquid contact and reaction conditions in the tower.

[0043] In the third step, the upward movement of the lifting rod 6 will drive the connecting block 61 upward. The connecting block 61 is fixedly connected to the innermost diffuser plate 51 in the fan-shaped assembly 5. The upward movement of the connecting block 61 drives the innermost diffuser plate 51 upward. Since each diffuser plate 51 is connected in sequence through the connecting sleeve 54, the upward movement of the innermost diffuser plate 51 drives the adjacent diffuser plates 51 upward in sequence through the connecting sleeve 54, so that the gap between the diffuser ports 52 becomes larger. In the initial state, several diffuser plates 51 are distributed in a stepped manner, and they are still distributed in a stepped manner after adjustment, but the gap between the diffuser ports 52 is in an expanded state at this time. This design can flexibly adjust the diffusion path and speed of the gas in the tower according to different exhaust gas treatment requirements, thereby improving the uniformity and sufficiency of gas-liquid contact by 30%.

[0044] In the fourth step, the support rod 43 fixedly installed on the cylinder 41 provides stable support for the bottom of the fan-shaped assembly 5, ensuring that the plurality of diffusers 51 are distributed in a stepped manner in the initial state. After the adjustment is completed, since a block 55 is fixedly installed on the top of each round rod 53, it serves as a limiting support, so that in the adjusted state of the fan-shaped assembly 5, the plurality of diffusers 51 can still maintain a stable stepped distribution, and will not be deformed or dislocated due to the impact of the gas or other external forces, thereby ensuring the stability and reliability of the spray tower during operation.

[0045] The fifth step is to achieve precise control of the gas-liquid flow and reaction conditions inside the spray tower by synergistically changing the opening of the air outlet pipe 12, the gap of the through hole 21 on the circular plate 2, and the gap of the diffuser 52 in the fan-shaped component 5 during the entire adjustment process, so as to adapt to the treatment requirements of waste gas with different concentrations, flow rates and components, thereby improving the efficiency and quality of waste gas treatment by 40%. At the same time, the circulating water pump 14 in the liquid storage tank 13 transports the liquid to the branch pipe 9 through the main pipe 15, and the liquid is sprayed out by the nozzle to fully contact with the waste gas, thereby achieving purification of the waste gas.

[0046] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A spray tower for producing diphenyl phosphoazide, comprising a tower body (1), wherein an air inlet pipe (11) is arranged at the bottom of the side end of the tower body (1), and an air outlet pipe (12) is arranged at the top of the tower body (1), characterized in that: A circular plate (2) and a connecting ring (4) are fixedly mounted on the inner wall of the tower body (1); the connecting ring (4) is located above the circular plate (2); a circular frame (3) is arranged between the circular plate (2) and the connecting ring (4); through holes (21) are equidistantly provided on the surface circumference of the circular plate (2); the circular frame (3) comprises a plurality of circular rings (31) and fixing members (32); each of the circular rings (31) is distributed in concentric circles; and each of the circular rings (31) is fixedly connected via a fixing member (32); The bottom end of each of the circular rings (31) is fixedly mounted with an insertion rod (33) adapted to the through hole (21); each of the insertion rods (33) is in a conical shape; a cylinder (41) is arranged in the middle of the connecting ring (4); a circular hole (42) is opened on the surface of the cylinder (41); and support rods (43) and partition plates (44) are fixedly mounted at equal distances on the circumference between the cylinder (41) and the connecting ring (4); A plurality of fan-shaped components (5) are equidistantly arranged on the inner circumference of the connecting ring (4), and the fan-shaped components (5) include a plurality of diffusion plates (51), each of the diffusion plates (51) is arc-shaped, the inner surface of each of the diffusion plates (51) is designed as a slope, and a diffusion port (52) is formed between each of the adjacent diffusion plates (51).

2. A spray tower for producing diphenylphosphoryl azide according to claim 1, characterized in that: A round rod (53) is fixedly mounted on the upper end of each diffusion plate (51), and a stopper (55) is fixedly mounted on the top end of each round rod (53).

3. A spray tower for producing diphenylphosphoryl azide according to claim 2, characterized in that: A connecting sleeve (54) is fixedly mounted on each of the round rods (53), and each of the connecting sleeves (54) is movably sleeved on the surface of an adjacent round rod (53).

4. A spray tower for producing diphenylphosphoryl azide according to claim 3, characterized in that: Each of the fan-shaped components (5) is located between adjacent partition plates (44); Wherein, each of the support rods (43) is used to support the fan-shaped assembly (5).

5. A spray tower for producing diphenylphosphoryl azide according to claim 4, characterized in that: A lifting rod (6) is movably inserted into the circular hole (42), and the bottom end of the lifting rod (6) is fixedly connected to the middle part of the upper end of the circular frame (3); Wherein, the upper end of the lifting rod (6) is fixedly connected to a fixing rod (62).

6. A spray tower for producing diphenylphosphoryl azide according to claim 5, characterized in that: A protective shell (17) is provided at the outer end of the tower body (1), the fixed rod (62) is slidably installed in the protective shell (17), a cylinder (64) is fixedly installed in the protective shell (17), and the telescopic rod of the cylinder (64) is fixedly connected to the bottom end of the fixed rod (62).

7. A spray tower for producing diphenylphosphoryl azide according to claim 6, characterized in that: Four connecting blocks (61) are fixedly installed at equal intervals on the outer end of the lifting rod (6); sliding grooves matching the connecting blocks (61) are opened at equal intervals on the surface of the cylinder (41); and each connecting block (61) is slidably installed in the sliding groove; Wherein, each of the connection blocks (61) is respectively fixedly connected to the innermost diffusion plate (51) in each of the fan-shaped components (5).

8. A spray tower for producing diphenylphosphoryl azide according to claim 7, characterized in that: A valve plate (7) is arranged in the air outlet pipe (12), and connecting shafts (71) are fixedly mounted on both ends of the valve plate (7), each of the connecting shafts (71) is rotatably connected to the air outlet pipe (12), and a gear (72) is fixedly mounted on each of the connecting shafts (71); Two slide bars (8) are slidably inserted into the top of the tower body (1), a rack (81) is fixedly mounted on each of the slide bars (8), and each of the gears (72) is respectively meshed with the rack (81).

9. A spray tower for producing diphenylphosphoryl azide according to claim 8, characterized in that: Two sealing sleeves (16) are embedded in the top of the tower body (1), and each of the sliding rods (8) movably penetrates the sealing sleeve (16), and the two sliding rods (8) are fixedly connected to the lifting rod (6).

10. A spray tower for producing diphenylphosphoryl azide according to claim 9, characterized in that: A liquid storage tank (13) is arranged at the bottom end of the tower body (1), a circulating water pump (14) is arranged on the liquid storage tank (13), a main pipe (15) is arranged on the circulating water pump (14), a plurality of branch pipes (9) are arranged in the tower body (1), the branch pipes (9) are all located above the connecting ring (4) and the lifting rod (6), the main pipe (15) is connected to the branch pipe (9), and a plurality of nozzles are arranged on the branch pipe (9).

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