A complex iron desulfurization hydraulic deblocking structure and use method

Abstract

The present invention discloses a complex iron desulfurization hydraulic unblocking structure and a method of use, comprising a complex iron desulfurization device oxidation tower, a connecting flange, a transition pipe, a blowdown pipe, a liftable hydraulic unblocking assembly and a compressed air purge assembly, wherein the transition pipe and the blowdown pipe are sequentially connected and arranged at the outlet bottom of the complex iron desulfurization device oxidation tower, the connecting flange is installed between the conical bottom of the complex iron desulfurization device oxidation tower and the transition pipe, and the compressed air purge assembly is connected and arranged on the outer bottom side wall of the complex iron desulfurization device oxidation tower. The present invention belongs to the technical field of unblocking structures, and specifically provides a complex iron desulfurization hydraulic unblocking structure that can be unblocked without stopping production, reduces the impact on production, facilitates centralized cleaning of blockages, reduces pollution to the environment, and replaces manual cleaning with machines to reduce the labor of workers.

Description

Technical Field

[0001] The invention belongs to the technical field of blockage-removing structures, and in particular relates to a complex iron desulfurization hydraulic blockage-removing structure. Background Art

[0002] The complex iron desulfurization technology is a method of removing hydrogen sulfide by wet oxidation using complex iron as a catalyst. It is a new desulfurization technology with simple process, high working sulfur capacity, environmental protection and non-toxicity. The complex iron gas desulfurization technology contains solid sulfur particles in the desulfurization liquid. These particles are easy to gather at the conical bottom of the oxidation tower, causing blockage of the conical bottom pipeline and valve.

[0003] After the blockage, the current method of clearing the blockage is to stop production and empty the liquid in the oxidation tower and manually clear the blockage. This method of clearing the blockage will affect production efficiency due to the need to stop production. During the cleaning process, a large amount of desulfurization liquid will be lost, polluting the surrounding environment. In addition, manual cleaning has the disadvantages of harsh environment and high labor intensity. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a complex iron desulfurization hydraulic blockage unblocking structure which can unblock without stopping production, reduces the impact on production, facilitates centralized cleaning of blockages, reduces pollution to the environment, replaces manual cleaning with machines, and reduces the labor of workers.

[0005] The technical scheme adopted by the present invention is as follows: the hydraulic unblocking structure of the complex iron desulfurization device of the present scheme comprises an oxidation tower of the complex iron desulfurization device, a connecting flange, a transition pipe, a drain pipe, a liftable hydraulic unblocking component and a compressed air purge component, the transition pipe and the drain pipe are connected in sequence at the bottom of the outlet of the oxidation tower of the complex iron desulfurization device, the connecting flange is installed between the conical bottom of the oxidation tower of the complex iron desulfurization device and the transition pipe, the upper end of the liftable hydraulic unblocking component is slidingly connected between the transition pipe and the conical bottom of the oxidation tower of the complex iron desulfurization device, and the compressed air purge component is connected and arranged on the outer bottom side wall of the oxidation tower of the complex iron desulfurization device; the liftable hydraulic unblocking component comprises a mounting frame, a flushing height adjustment component, a flushing component and a flushing anti-blocking component, the mounting frame is connected to the bottom of the transition pipe and the drain pipe, the flushing height adjustment component The component is connected to the inside of the mounting frame, the lower end of the flushing component is connected to the inside of the mounting frame, the upper end of the flushing component can be lifted and connected between the transition pipe and the conical bottom of the oxidation tower of the complex iron desulfurization device, and the flushing anti-blocking component is sleeved on the outside of the flushing component; the flushing height adjustment component includes a lifting adjustment box, a first limit plate, a second limit plate, a first threaded rod, a second threaded rod and a lifting connecting plate, the lifting adjustment box is connected to the inside of the mounting frame, the first limit plate and the second limit plate are respectively connected to the two opposite inner walls of the lifting adjustment box, the first threaded rod is rotatably connected between the first limit plate and the inner bottom of the lifting adjustment box, the second threaded rod is rotatably connected between the second limit plate and the inner bottom of the lifting adjustment box, and the two ends of the lifting connecting plate are respectively threadedly sleeved on the outside of the first threaded rod and the second threaded rod.

[0006] Preferably, the lower ends of the first threaded rod and the second threaded rod are respectively fixedly sleeved with a left driving worm gear and a right driving worm gear, the internal rotation connection of the lifting and lowering adjustment box is provided with a driving worm, the left driving worm gear and the right driving worm gear are respectively meshed and connected with the driving worm, and the outer side of the mounting frame is connected with a first motor plate, the upper end of the first motor plate is connected with a first motor, and the output shaft of the first motor is connected to one end of the driving worm.

[0007] Preferably, the flushing assembly includes a water tank, a micro high-pressure water pump and an internal water outlet cover, the water tank is connected to the upper end of the lifting connecting plate, the micro high-pressure water pump is connected to the upper end of the water tank, the water inlet of the micro high-pressure water pump is connected to the inside of the water tank, the lower end of the internal water outlet cover is connected to the water outlet of the micro high-pressure water pump, and the upper end of the internal water outlet cover can be lifted and connected between the transition pipe and the conical bottom of the oxidation tower of the complex iron desulfurization device.

[0008] Preferably, the flushing anti-blocking component includes an outgoing water cover, a driven gear, a second motor plate, a second motor and a driving gear, the outgoing water cover is sleeved on the outside of the inner water outlet cover, the driven gear is fixedly sleeved on the outside of the lower end of the outgoing water cover, the second motor plate is connected to the upper end of the water tank, the second motor is connected to the upper end of the second motor plate, the driving gear is fixedly sleeved on the outside of the output shaft of the second motor, and the driving gear is meshingly connected to the driven gear.

[0009] Preferably, the outer side of the inner water outlet cover is connected to a first water outlet, and the outer side of the outer water outlet cover is connected to a second water outlet. The first water outlet is arranged in eight groups in a circular array on the outer side of the inner water outlet cover, and the second water outlet is arranged in eight groups in a circular array on the outer side of the outer water cover.

[0010] Preferably, a blocking groove is connected between two adjacent first water outlets, a blocking ball is slidably connected inside the blocking groove, and a return spring is connected between the outer side of the blocking ball and the inner wall of the blocking groove.

[0011] Preferably, the outer top of the inner water outlet cover is connected with a rotating ring groove, the inner top of the outlet water cover is connected with an auxiliary rotating wheel, and the lower end of the auxiliary rotating wheel is rotatably connected to the inside of the rotating ring groove.

[0012] Preferably, a sealing structure is provided between the outgoing water hood and the sewage pipe so that the outgoing water hood will not leak when the sewage pipe is raised or lowered. The sealing structure can adopt packing seal, mechanical seal or flexible material seal, and a sewage valve is provided on the sewage pipe.

[0013] Preferably, the compressed air purge assembly includes a purge pipe, a purge fixture, a nozzle and a connecting pipe. The purge pipe is fixed on the outer bottom wall of the oxidation tower of the complex iron desulfurization device through the purge fixture. The nozzle is connected to the purge pipe, and the nozzle is connected to the inner wall of the oxidation tower of the complex iron desulfurization device. The connecting pipe is connected to the purge pipe, and an air valve connected to the air pump is provided on one side of the connecting pipe.

[0014] Preferably, the method for using the complex iron desulfurization hydraulic deblocking structure comprises the following steps:

[0015] Step 1: Connect the device to the lower end of the cone bottom valve of the oxidation tower 1 of the complex iron desulfurization device through the connecting flange, and connect the connecting pipe to the external air pump;

[0016] Step 2: Open the cone bottom valve of the oxidation tower of the complex iron desulfurization device, and move the flushing component to the sulfur blockage position through the flushing height adjustment component 8;

[0017] Step 3: Start the second motor and the micro high-pressure water pump to connect the first water outlet with the second water outlet, and remove the sulfur blockage through the inner water outlet cover, the first water outlet and the second water outlet. The stripped sulfur blockage falls to the lower part of the transition pipe and is discharged through the sewage pipe;

[0018] Step 4: Use an air pump to inject gas into the purge pipe and nozzle to prevent sulfur particles from adhering to the inner wall through purge and flushing of the gas;

[0019] Step 5: After all the blockages are cleared, the upper ends of the flushing assembly and the flushing anti-blocking assembly are lowered into the transition pipe, the second motor is reversed to stagger the first water outlet and the second water outlet, and the blocking ball enters the second water outlet to block it;

[0020] Step six: Close the cone bottom valve of the oxidation tower of the complex iron desulfurization unit, disconnect the connection between the connecting flange and the cone bottom valve, and complete the dismantling of the equipment and unblocking.

[0021] Step 7: Open the drain valve and clean up the blockages in a centralized manner to reduce pollution to the external environment.

[0022] The beneficial effects achieved by the present invention using the above structure are as follows: the complex iron desulfurization hydraulic blockage removal structure of this scheme,

[0023] 1. No need to stop production, reducing the impact on production;

[0024] 2. Use machines to replace manual cleaning, reduce the labor intensity of workers and improve the efficiency of unblocking;

[0025] 3. The blockages can be centrally processed without causing loss of desulfurization liquid and reducing pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the complex iron desulfurization hydraulic deblocking structure of this scheme;

[0027] Figure 2 This is a schematic diagram of the structure of the complex iron desulfurization hydraulic deblocking structure of this scheme;

[0028] Figure 3 It is a schematic diagram of the connection between the inner water outlet hood and the outer water outlet hood in the complex iron desulfurization hydraulic deblocking structure of this scheme;

[0029] Figure 4 for Figure 1 A partial enlarged schematic diagram of part A;

[0030] Figure 5 for Figure 1 A partial enlarged schematic diagram of part B.

[0031] Among them, 1. Oxidation tower of complex iron desulfurization device, 2. Connecting flange, 3. Transition pipe, 4. Drain pipe, 5. Liftable hydraulic unblocking assembly, 6. Compressed air purge assembly, 7. Mounting frame, 8. Flushing height adjustment assembly, 9. Flushing assembly, 10. Flushing anti-blocking assembly, 11. Lifting adjustment box, 12. First limit plate, 13. Second limit plate, 14. First threaded rod, 15. Second threaded rod, 16. Lifting connecting plate, 17. Left drive worm gear, 18. Right drive worm gear, 19. Drive worm, 2 0. First motor plate, 21. First motor, 22. Water tank, 23. Mini high-pressure water pump, 24. Inner water outlet cover, 25. Outer water cover, 26. Driven gear, 27. Second motor plate, 28. Second motor, 29. Driving gear, 30. First water outlet, 31. Second water outlet, 32. Blocking groove, 33. Blocking ball, 34. Reset spring, 35. Rotating ring groove, 36. Auxiliary runner, 37. Sealing structure, 38. Drain valve, 39. Purge pipe, 40. Purge fixture, 41. Connecting pipe.

[0032] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] like Figure 1-5 As shown, a hydraulic unblocking structure for complex iron desulfurization of the present invention comprises an oxidation tower 1 of a complex iron desulfurization device, wherein the bottom of the outlet of the oxidation tower 1 of the complex iron desulfurization device is connected in sequence with a transition pipe 3 and a sewage pipe 4, a connecting flange 2 is connected between the conical bottom of the oxidation tower 1 of the complex iron desulfurization device and the transition pipe 3, a liftable hydraulic unblocking component 5 is connected between the transition pipe 3 and the conical bottom of the oxidation tower 1 of the complex iron desulfurization device, and a compressed air purge component 6 is connected to the outer bottom side wall of the oxidation tower 1 of the complex iron desulfurization device.

[0035] like Figure 4As shown, the liftable hydraulic deblocking assembly 5 includes a mounting frame 7, and the mounting frame 7 is connected to the bottom of the transition pipe 3 and the sewage pipe 4. The interior of the mounting frame 7 is connected with a flushing height adjustment assembly 8 and a flushing assembly 9. The upper end of the flushing assembly 9 is liftable and connected between the transition pipe 3 and the conical bottom of the oxidation tower 1 of the complex iron desulfurization device, and the outer side of the flushing assembly 9 is provided with a flushing anti-blocking assembly 10.

[0036] like Figure 4 As shown, the flushing height adjustment assembly 8 includes a lifting adjustment box 11, a first limit plate 12, a second limit plate 13, a first threaded rod 14, a second threaded rod 15, a left drive worm gear 17, a right drive worm gear 18, a drive worm 19, a first motor plate 20 and a first motor 21. The lifting adjustment box 11 is connected to the inside of the mounting frame 7, the first limit plate 12 and the second limit plate 13 are respectively connected to the two opposite inner walls of the lifting adjustment box 11, the first limit plate 12 and the inner bottom of the lifting adjustment box 11 are rotatably connected with the first threaded rod 14, and the second limit plate 13 is connected to the inner bottom of the lifting adjustment box 11. A second threaded rod 15 is provided, and the outer threads of the first threaded rod 14 and the second threaded rod 15 are sleeved with a lifting connecting plate 16, and the left driving worm gear 17 and the right driving worm gear 18 are respectively fixedly sleeved on the outer sides of the lower ends of the first threaded rod 14 and the second threaded rod 15, and the driving worm 19 is rotatably connected to the inside of the lifting adjustment box 11, and the left driving worm gear 17 and the right driving worm gear 18 are respectively meshed and connected with the driving worm 19, and the first motor plate 20 is connected to the outer side of the mounting frame 7, the first motor 21 is connected to the upper end of the first motor plate 20, and the output shaft of the first motor 21 is connected to one end of the driving worm 19.

[0037] like Figure 4 As shown, the flushing component 9 includes a water tank 22, and the water tank 22 is connected to the upper end of the lifting connecting plate 16, and the micro high-pressure water pump 23 is connected to the upper end of the water tank 22. The water inlet of the micro high-pressure water pump 23 is connected to the inside of the water tank 22, and the water outlet of the micro high-pressure water pump 23 is connected to an internal water outlet cover 24, and the upper end of the internal water outlet cover 24 can be lifted and connected between the transition pipe 3 and the conical bottom of the oxidation tower 1 of the complex iron desulfurization device.

[0038] like Figure 4 As shown, the flushing anti-blocking component 10 includes an outgoing water cover 25, which is sleeved on the outside of the inner water outlet cover 24, and a driven gear 26 is fixedly sleeved on the outside of the lower end of the outgoing water cover 25. A second motor plate 27 is connected to the upper end of the water tank 22, and a second motor 28 is connected to the upper end of the second motor plate 27. A driving gear 29 is fixedly sleeved on the outside of the output shaft of the second motor 28, and the driving gear 29 is meshed and connected with the driven gear 26.

[0039] Among them, the outer side of the inner water outlet cover 24 is connected to a first water outlet 30, and the outer side of the outer water cover 25 is connected to a second water outlet 31. The first water outlet 30 is arranged in eight groups in a circular array on the outer side of the inner water outlet cover 24, and the second water outlet 31 is arranged in eight groups in a circular array on the outer side of the outer water cover 25.

[0040] A blocking groove 32 is connected between two adjacent first water outlets 30 . A blocking ball 33 is slidably connected inside the blocking groove 32 . A return spring 34 is connected between the outer side of the blocking ball 33 and the inner wall of the blocking groove 32 .

[0041] A rotating annular groove 35 is connected to the outer top of the inner water outlet cover 24 , and an auxiliary rotating wheel 36 is connected to the inner top of the outer water outlet cover 25 . The lower end of the auxiliary rotating wheel 36 is rotatably connected to the inside of the rotating annular groove 35 .

[0042] A sealing structure 37 is provided between the outgoing water cover 25 and the sewage pipe 4 so that the outgoing water cover 25 will not leak when the sewage pipe 4 is raised or lowered. The sealing structure 37 can be sealed by packing, mechanical seal or flexible material, and a sewage valve 38 is provided on the sewage pipe 4.

[0043] The compressed air purge assembly 6 includes a purge pipe 39, a purge fixture 40, a nozzle and a connecting pipe 41. The purge pipe 39 is fixed on the outer bottom wall of the oxidation tower 1 of the complex iron desulfurization device through the purge fixture 40. The nozzle is connected to the purge pipe 39, and the nozzle is connected to the inner wall of the oxidation tower 1 of the complex iron desulfurization device. The connecting pipe 41 is connected to the purge pipe 39, and an air valve connected to the air pump is provided on one side of the connecting pipe 41.

[0044] When in use, the external power supply supplies power to the device, and the unblocking method includes the following steps:

[0045] Step 1: Connect the device to the lower end of the cone bottom valve of the oxidation tower 1 of the complex iron desulfurization device through the connecting flange 2, and connect the connecting pipe 41 to the external air pump;

[0046] Step 2: Open the cone bottom valve of the oxidation tower 1 of the complex iron desulfurization device, and move the flushing component 9 to the sulfur blockage position through the flushing height adjustment component 8; start the first motor 21, the first motor 21 drives the driving worm 19 to rotate, and the driving worm 19 drives the first threaded rod 14 and the second threaded rod 15 to rotate through the left driving worm gear 17 and the right driving worm gear 18, thereby driving the flushing component 9 and the flushing anti-blocking component 10 to move upward through the lifting connecting plate 16, so that the top ends of the flushing component 9 and the flushing anti-blocking component 10 enter the blockage;

[0047] Step 3: Start the second motor 28 and the micro high-pressure water pump 23, connect the first water outlet 30 with the second water outlet 31, and remove the sulfur blockage from the water in the water tank 22 through the inner water outlet cover 24, the first water outlet 30 and the second water outlet 31. The stripped sulfur blockage falls to the lower part of the transition pipe 3 and is discharged through the sewage pipe 4; the second motor 28 rotates forward through the driving gear 29 and the driven gear 26 to rotate the outer water cover 25, and stops running when the first water outlet 30 is connected with the second water outlet 31, and the micro high-pressure water pump 23 pumps the water in the water tank 22 into the inner water outlet cover 24;

[0048] Step 4: inject gas into the purge pipe 39 and the nozzle through an air pump to prevent sulfur particles from adhering to the inner wall through purge and flushing of the gas;

[0049] Step 5: After all the blockages are removed, the upper ends of the flushing assembly 9 and the flushing anti-blocking assembly 10 are lowered into the transition pipe 3, and the second motor 28 is reversed to stagger the first water outlet 30 and the second water outlet 31, and the blocking ball 33 enters the second water outlet 31 to block it;

[0050] Step 6: Close the cone bottom valve of the oxidation tower 1 of the complex iron desulfurization unit, disconnect the connection between the connecting flange 2 and the cone bottom valve, and dismantle the equipment to complete the unblocking.

[0051] Step 7: Open the drain valve 38 to centrally clean the blockages to reduce pollution to the external environment.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0054] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A complex iron desulfurization hydraulic unblocking structure, characterized in that: It includes an oxidation tower of a complex iron desulfurization device, a connecting flange, a transition pipe, a drain pipe, a liftable hydraulic unblocking assembly and a compressed air purge assembly, wherein the transition pipe and the drain pipe are connected in sequence and arranged at the bottom of the outlet of the oxidation tower of the complex iron desulfurization device, the connecting flange is installed between the conical bottom of the oxidation tower of the complex iron desulfurization device and the transition pipe, the upper end of the liftable hydraulic unblocking assembly is slidingly connected between the transition pipe and the conical bottom of the oxidation tower of the complex iron desulfurization device, and the compressed air purge assembly is connected and arranged on the outer bottom side wall of the oxidation tower of the complex iron desulfurization device; the liftable hydraulic unblocking assembly includes a mounting frame, a flushing height adjustment assembly, a flushing assembly and a flushing anti-blocking assembly, the mounting frame is connected to the bottom of the transition pipe and the drain pipe, the flushing height adjustment assembly is connected to the inside of the mounting frame, the lower end of the flushing assembly is connected to the inside of the mounting frame, the upper end of the flushing assembly is liftably connected between the transition pipe and the conical bottom of the oxidation tower of the complex iron desulfurization device, and the flushing anti-blocking assembly is sleeved on the outside of the flushing assembly;The flushing height adjustment component includes a lifting and adjusting box, a first limit plate, a second limit plate, a first threaded rod, a second threaded rod and a lifting connecting plate. The lifting and adjusting box is connected to the inside of the mounting frame, the first limit plate and the second limit plate are respectively connected to the two opposite inner walls of the lifting and adjusting box, the first threaded rod is rotatably connected between the first limit plate and the inner bottom of the lifting and adjusting box, the second threaded rod is rotatably connected between the second limit plate and the inner bottom of the lifting and adjusting box, and the two ends of the lifting and connecting plate are respectively threadedly sleeved on the outside of the first threaded rod and the second threaded rod. The flushing component includes a water tank, a micro high-pressure water pump and an inner water outlet cover. The water tank is connected to the upper end of the lifting and connecting plate, the micro high-pressure water pump is connected to the upper end of the water tank, the water inlet of the micro high-pressure water pump is connected to the inside of the water tank, the lower end of the inner water outlet cover is connected to the water outlet of the micro high-pressure water pump, and the upper end of the inner water outlet cover can be lifted and connected between the transition pipe and the conical bottom of the oxidation tower of the complex iron desulfurization device. The flushing anti-blocking component includes an outgoing Water cover, driven gear, second motor plate, second motor and driving gear, the outgoing water cover is sleeved on the outside of the inner water cover, the driven gear is fixedly sleeved on the outside of the lower end of the outgoing water cover, the second motor plate is connected to the upper end of the water tank, the second motor is connected to the upper end of the second motor plate, the driving gear is fixedly sleeved on the outside of the output shaft of the second motor, and the driving gear is meshed with the driven gear, the outside of the inner water cover is connected with a first water outlet, the outside of the outgoing water cover is connected with a second water outlet, the first water outlet is arranged in eight groups in a circular array on the outside of the inner water cover, the second water outlet is arranged in eight groups in a circular array on the outside of the outgoing water cover, a blocking groove is connected between two adjacent first water outlets, a blocking ball is slidably connected inside the blocking groove, a reset spring is connected between the outer side of the blocking ball and the inner wall of the blocking groove, the outer top of the inner water cover is connected with a rotating ring groove, the inner top of the outgoing water cover is connected with an auxiliary rotating wheel, and the lower end of the auxiliary rotating wheel is rotatably connected inside the rotating ring groove. ; 2. A complex iron desulfurization hydraulic unblocking structure according to claim 1, characterized in that: The lower ends of the first threaded rod and the second threaded rod are respectively fixedly sleeved with a left driving worm gear and a right driving worm gear, the internal rotation connection of the lifting and lowering adjustment box is provided with a driving worm, the left driving worm gear and the right driving worm gear are respectively meshed and connected with the driving worm, and the outer side of the mounting frame is connected with a first motor plate, the upper end of the first motor plate is connected with a first motor, and the output shaft of the first motor is connected to one end of the driving worm.

3. A complex iron desulfurization hydraulic unblocking structure according to claim 2, characterized in that: A sealing structure is arranged between the outgoing water cover and the sewage pipe. The sealing structure can adopt packing seal, mechanical seal or flexible material seal, and a sewage valve is arranged on the sewage pipe.

4. A complex iron desulfurization hydraulic unblocking structure according to claim 3, characterized in that: The compressed air purge assembly includes a purge pipe, a purge fixture and a connecting pipe. The purge pipe is fixed to the outer bottom wall of the oxidation tower of the complex iron desulfurization device through the purge fixture. The outer side of the purge pipe is connected to a nozzle, and the nozzle is connected to the inner wall of the oxidation tower of the complex iron desulfurization device. The connecting pipe is connected to one end of the purge pipe, and an air valve connected to the air pump is provided on one side of the connecting pipe.

5. A complex iron desulfurization hydraulic blockage removal structure according to claim 4, characterized in that: The method for using the complex iron desulfurization hydraulic plugging removal structure comprises the following steps: Step 1: Connect the equipment to the lower end of the cone bottom valve of the oxidation tower of the complex iron desulfurization device through the connecting flange, and connect the connecting pipe to the external air pump; Step 2: Open the cone bottom valve of the oxidation tower of the complex iron desulfurization unit, and move the flushing component to the sulfur blockage position through the flushing height adjustment component; Step 3: Start the second motor and the micro high-pressure water pump to connect the first water outlet with the second water outlet, and remove the sulfur blockage through the inner water outlet cover, the first water outlet and the second water outlet. The stripped sulfur blockage falls to the lower part of the transition pipe and is discharged through the sewage pipe; Step 4: Use an air pump to inject gas into the purge pipe and nozzle to prevent sulfur particles from adhering to the inner wall through purge and flushing of the gas; Step 5: After all the blockages are cleared, the upper ends of the flushing assembly and the flushing anti-blocking assembly are lowered into the transition pipe, the second motor is reversed to stagger the first water outlet and the second water outlet, and the blocking ball enters the second water outlet to block it; Step 6: Close the cone bottom valve of the oxidation tower of the complex iron desulfurization device, disconnect the connection between the connecting flange and the cone bottom valve, and dismantle the equipment to complete the unblocking; Step 7: Open the drain valve and clean up the blockages in a centralized manner to reduce pollution to the external environment.

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