Bubbling type absorption and oxidation integrated equipment for sulfur recovery tail gas

Abstract

The invention relates to the technical field of ammonia desulfurization, in particular to sulfur recovery tail gas bubbling type absorption and oxidation integrated equipment which comprises a flue gas washing box, a gas inlet pipe is connected to the outer wall of the middle of one side of the flue gas washing box in a penetrating mode, and first spray heads are distributed and installed on the outer wall of the top of the end, penetrating through the interior of the flue gas washing box, of the gas inlet pipe in a penetrating mode; a linkage spraying assembly is arranged in the flue gas washing box, an absorption circulating tank is arranged on the outer wall of one side of the flue gas washing box, and a gas conveying pipe is connected between the absorption circulating tank and the flue gas washing box in a penetrating mode; flue gas is pre-washed in the flue gas washing box, the pre-washed flue gas is pumped out, pressurized, conveyed, distributed and introduced below the liquid level of the absorption circulation tank, bubbling reaction and oxidation reaction are integrated, the flue gas is oxidized at the lower part in the absorption circulation tank and is absorbed at the upper part in the absorption circulation tank, and the absorption efficiency can be greatly improved; the problems of high requirements on desulfurization equipment, high energy consumption and high investment of the traditional spray tower and packed tower are solved.

Description

Technical Field

[0001] The invention relates to the technical field of ammonia desulfurization, and in particular to a sulfur recovery tail gas bubbling absorption and oxidation integrated equipment. Background Art

[0002] Ammonia desulfurization is an efficient and environmentally friendly flue gas desulfurization technology. The research and application of ammonia desulfurization technology has a long history. Initially, people found that ammonia has good absorption properties for sulfur dioxide, and ammonia and sulfur dioxide can react relatively quickly and effectively. Based on this chemical property, they began to explore its application in the field of flue gas desulfurization. The early ammonia desulfurization process was relatively simple, and there were problems such as poor control of ammonia escape and insufficient system operation stability. However, with the continuous advancement of chemical technology and automation control technology, ammonia desulfurization technology has made great progress in process optimization and equipment improvement. Ammonia desulfurization is a common flue gas desulfurization technology. In the sulfur recovery process, the tail gas mainly contains nitrogen. This is because a large amount of air participates in the reaction in the entire process. Nitrogen in the air, as the main component, does not participate in the main chemical process of desulfurization and sulfur recovery, and thus occupies a large proportion in the tail gas. Sulfur recovery tail gas refers to the sulfur recovery unit that treats sulfur-containing The purpose of the sulfur recovery device is to recover the sulfur in these acidic gases in the form of elemental sulfur or other sulfur-containing compounds (such as sulfuric acid, etc.), but some gases are still discharged after treatment, which is the sulfur recovery tail gas. Sulfur recovery desulfurization is mostly carried out by spray towers and packed towers. The sulfur-containing gas enters from the bottom of the spray tower, and the desulfurizer sprays down from the top through the nozzle. The gas and liquid phases contact in the tower in countercurrent, and the desulfurizer reacts chemically with the sulfide in the sulfur-containing gas to remove the sulfur. The packed tower is filled with various shapes of packing (such as ball rings, Raschig rings, etc.). The sulfur-containing gas enters from the bottom of the tower, and the desulfurizer enters from the top of the tower. The gas and liquid phases are fully in contact on the surface of the packing; the presence of the packing greatly increases the gas-liquid contact area, so that the desulfurization reaction can be carried out more fully.

[0003] The spray tower and packed tower used in the existing sulfur recovery tail gas treatment are relatively traditional and simple in structure, with strict tower height requirements for the spray tower and packed tower, and problems of high energy consumption and high investment. The flue gas of the traditional sulfur recovery tail gas treatment equipment cannot fully and comprehensively contact with the desulfurization treatment liquid, affecting the efficiency and effect of the flue gas desulfurization treatment.

[0004] In order to solve the above problems, the present invention proposes a sulfur recovery tail gas bubbling absorption and oxidation integrated equipment. Summary of the invention

[0005] (1) Technical issues to be resolved The purpose of the present invention is to overcome the problems that the spray tower and packed tower used in the sulfur recovery tail gas treatment in the prior art are relatively traditional and simple in structure, have strict tower height requirements for the spray tower and the packed tower, have high energy consumption and high investment, and the flue gas of the traditional sulfur recovery tail gas treatment equipment cannot fully and comprehensively contact with the desulfurization treatment liquid, affecting the efficiency and effect of the flue gas desulfurization treatment. In order to meet the actual needs, a sulfur recovery tail gas bubbling absorption and oxidation integrated equipment is provided to solve the above technical problems.

[0006] (2) Technical solution In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: A sulfur recovery tail gas bubbling absorption and oxidation integrated equipment comprises a flue gas scrubbing box, an air inlet pipe is connected through the middle outer wall of one side of the flue gas scrubbing box, the air inlet pipe passes through the top outer wall of one end of the flue gas scrubbing box and is distributed and installed with a first nozzle, a linkage spray assembly is arranged inside the flue gas scrubbing box, an absorption circulation tank is arranged on the outer wall of one side of the flue gas scrubbing box, an air supply pipe is connected through the absorption circulation tank and the flue gas scrubbing box, a turbine pump is installed on the outer wall of one side of the flue gas scrubbing box, a driving motor is installed on the outer wall of one side of the turbine pump, the driving motor and the turbine pump are coaxially connected, the turbine pump is connected through the middle of the air supply pipe, a holding filler assembly is arranged inside the absorption circulation tank, and an air outlet pipe is connected through the outer wall of one side of the top of the absorption circulation tank.

[0007] Preferably, the linked spray assembly includes a liquid storage tank fixed on the outer wall of one side of the flue gas washing box, a liquid pump is installed on the top outer wall of the liquid storage tank, the liquid suction end of the liquid pump is connected with a liquid suction pipe, and one end of the liquid suction pipe passes through the interior of the liquid storage tank, the pump liquid end of the liquid pump is connected with a pump liquid main pipe, and one end of the pump liquid main pipe is distributed and connected with a pump liquid branch pipe, end pipes are symmetrically and rotatably installed on the outer walls on both sides of the top of the flue gas washing box, one end of the end pipe passing through the outside of the flue gas washing box is connected with one end of the pump liquid branch pipe, and second nozzles are distributed and installed on the outer walls of the end pipes, a transmission shaft is rotatably installed on the inner wall of the flue gas washing box located between the end pipes, cams are distributed and installed on the outer wall of the transmission shaft, and the cam is located between the second nozzles on both sides, the end of the transmission shaft is coaxial with the turbine pump, first magnet blocks are inlaid and fixed on the outer walls on both sides of the cam, second magnet blocks are correspondingly fixed on the opposite outer walls of the second nozzles on both sides of the cam, and the first magnet block and the second magnet block have the same pole relative to the outer walls.

[0008] Preferably, the pressure-holding filler assembly includes a barrel embedded and fixed at the center of the top outer wall of the absorption circulation tank, a first piston is arranged inside the barrel, a connecting rod is fixed on the bottom outer wall of the first piston, a second piston is fixed on one end of the connecting rod passing through the interior of the absorption circulation tank, a spring is mounted on the outer wall of the connecting rod below the first piston, a first filter plate is distributed, embedded and fixed on the top outer wall of the second piston, a second filter plate is fixed on the middle outer wall of the absorption circulation tank, and a filler is filled on the inner wall of the absorption circulation tank between the second filter plate and the second piston, one end of the gas supply pipe is connected to the outer wall on one side of the top of the barrel, and the other side of the outer wall on the top of the barrel is connected to an injection pipe, and a pressure relief valve is installed at the end of the injection pipe, one end of the injection pipe is connected to the bottom outer wall of the absorption circulation tank, and a linkage flue gas distribution assembly is provided at the connection between the injection pipe and the absorption circulation tank.

[0009] Preferably, the linked flue gas distribution assembly includes a turbine disk fixed on the bottom outer wall of the absorption circulation tank, a rotating main pipe is rotatably connected on the middle outer wall of the turbine disk, an impeller is fixed on the outer wall of one end of the rotating main pipe inside the turbine disk, one end of the air injection pipe is through-connected to the outer wall of one side of the turbine disk, and a bent pipe is through-connected to the outer wall of the other side of the turbine disk, one end of the rotating main pipe passes through the outside of the turbine disk and is rotatably connected to one end of the bent pipe, and a rotating joint is installed at the rotating connection, the rotating main pipe passes through the outer wall of the end portion of the absorption circulation tank and is distributed and through-connected with a rotating branch pipe, and air injection holes are distributed on the bottom outer wall of the rotating branch pipe.

[0010] Preferably, the absorption circulation tank is provided with a box door penetratingly installed on the outer wall on one side of the top of the second filter plate.

[0011] Preferably, an air injection port is provided on the outer wall on the top side of the liquid storage tank and the absorption circulation tank, and a top cover is provided on the top of the air injection port.

[0012] Preferably, connecting flanges are installed at the ends of the air inlet pipe and the air outlet pipe.

[0013] Preferably, the pump liquid branch pipe is a telescopic hose.

[0014] Preferably, support feet are distributed and installed on the outer walls of the bottoms of the flue gas scrubbing box and the absorption circulation tank.

[0015] Preferably, the second nozzle and the first nozzle are arranged opposite to each other, and both the second nozzle and the first nozzle are rotating nozzles.

[0016] (3) Beneficial effects: A. The sulfur recovery tail gas bubbling absorption and oxidation integrated equipment pre-washes the flue gas in the flue gas washing box. After pre-washing, the driving motor drives the turbine pump to work and pumps the treated flue gas in the flue gas washing box out through the gas pipe for pressurized transportation. The flue gas is distributed and introduced under the liquid surface of the absorption circulation tank to realize the integration of bubbling reaction and oxidation reaction. The flue gas is oxidized in the lower part of the absorption circulation tank and absorbed in the upper part, which can greatly improve the absorption efficiency and solve the problems of high tower height, high energy consumption and high investment required for traditional spray tower and packed tower desulfurization equipment.

[0017] B. Through the setting of the linkage spray assembly, the flue gas input from the intake pipe is sprayed into the flue gas washing box through the first nozzle. During the process, the control liquid pump works to pump the desulfurization treatment liquid in the liquid storage tank, and inputs it into the end pipe through the pump liquid main pipe and the pump liquid branch pipe, and sprays it at each second nozzle. The sprayed desulfurization treatment liquid sprays the input flue gas. During the process, the driving motor drives the turbine pump to rotate, and the cam on the transmission shaft rotates. During the process, the distance between the first magnet block on the cam and the second magnet block on the second nozzle changes continuously. Under the repulsion of the same poles of the magnetic blocks, the end pipes on both sides and the second nozzle on the top will be driven to swing back and forth, so that the desulfurization treatment liquid and the flue gas in the flue gas washing box are fully sprayed and contacted, thereby improving the efficiency and effect of the flue gas washing treatment.

[0018] C. Through the arrangement of the holding packing assembly, the treated flue gas in the flue gas washing box is input into the absorption circulation tank through the gas pipe for oxidation absorption. The flue gas pumped out by the turbine pump is first input into the barrel through the gas pipe. The pressure rises in the barrel, driving the first piston and the connecting rod to move downward, and driving the second piston to move downward. The second piston and the second filter plate squeeze the filled packing, so that the packing in the middle of the absorption circulation tank is always kept tight. The flue gas is input into the bottom of the absorption circulation tank through the gas injection pipe. The flue gas input from the bottom of the absorption circulation tank rises and passes through the gap of the packing, which increases the contact time between the flue gas and the desulfurization treatment liquid in the absorption circulation tank, thereby improving the effect of flue gas oxidation absorption in the absorption circulation tank; D. Through the setting of the linked flue gas distribution component, the turbine pump continuously pumps. When the air pressure input into the cylinder through the air delivery pipe reaches the threshold of the pressure relief valve, the excess flue gas is first input into the turbine disc through the air injection pipe and discharged through the elbow. During the process, the pumped flue gas impacts the impeller, which will drive the impeller and the rotating main pipe to rotate. The flue gas discharged from the elbow is input into the rotating main pipe through the rotary joint, and then input into the absorption circulation tank through the air injection hole on the rotating branch pipe. The rotating main pipe will drive the rotating branch pipe to rotate inside the absorption circulation tank, so that the flue gas is evenly distributed and passes into the bottom liquid level of the absorption circulation tank, so that the flue gas undergoes bubbling reaction and oxidation reaction in the absorption circulation tank, with oxidation at the bottom and absorption at the top, which can greatly improve the absorption efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a sulfur recovery tail gas bubbling absorption and oxidation integrated equipment of the present invention; Figure 2 It is a schematic diagram of a three-dimensional cross-section structure of a flue gas scrubber in a sulfur recovery tail gas bubbling absorption and oxidation integrated device of the present invention; Figure 3 This is a schematic diagram of the enlarged structure of point A in a sulfur recovery tail gas bubbling absorption and oxidation integrated equipment of the present invention; Figure 4 This is a schematic diagram of the enlarged structure of point B in a sulfur recovery tail gas bubbling absorption and oxidation integrated equipment of the present invention; Figure 5 It is a schematic diagram of the main cross-sectional structure of an absorption circulation tank in a sulfur recovery tail gas bubbling absorption and oxidation integrated device of the present invention; Figure 6 This is a schematic diagram of the enlarged structure of position C in a sulfur recovery tail gas bubbling absorption and oxidation integrated equipment of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of an absorption circulation tank in a sulfur recovery tail gas bubbling absorption and oxidation integrated device of the present invention; Figure 8 It is a partial three-dimensional structural schematic diagram of a linked flue gas distribution component in a sulfur recovery tail gas bubbling absorption and oxidation integrated device of the present invention.

[0020] The reference numerals are as follows: 1. Flue gas scrubber; 2. Air inlet pipe; 3. First nozzle; 4. Linked spray assembly; 5. Absorption circulation tank; 6. Air pipe; 7. Turbine pump; 8. Driving motor; 9. Pressing and holding filler assembly; 10. Linked flue gas distribution assembly; 11. Air outlet pipe; 12. Box door; 13. Air injection port; 14. Support foot; 401, liquid storage tank; 402, liquid pump; 403, liquid suction pipe; 404, liquid pump main pipe; 405, liquid pump branch pipe; 406, end pipe; 407, second nozzle; 408, transmission shaft; 409, cam; 410, first magnet block; 411, second magnet block; 901, barrel; 902, first piston; 903, connecting rod; 904, second piston; 905, spring; 906, first filter plate; 907, second filter plate; 908, packing; 909, gas injection pipe; 910, pressure relief valve; 101. turbine disc; 102. impeller; 103. rotating main pipe; 104. elbow pipe; 105. rotary joint; 106. rotating branch pipe; 107. air injection hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0022] The following is combined with Figure 1-8 The present invention is further described with examples: In this embodiment, Figure 1-8 As shown, a sulfur recovery tail gas bubbling absorption oxidation integrated equipment comprises a flue gas scrubber 1, an air inlet pipe 2 is connected through the outer wall of the middle part of one side of the flue gas scrubber 1, the air inlet pipe 2 passes through the top outer wall of one end of the flue gas scrubber 1, and a first nozzle 3 is installed through the air inlet pipe 2, a linkage spray assembly 4 is arranged inside the flue gas scrubber 1, an absorption circulation tank 5 is arranged on the outer wall of one side of the flue gas scrubber 1, a gas transmission pipe 6 is connected between the absorption circulation tank 5 and the flue gas scrubber 1, a turbine pump 7 is installed on the outer wall of one side of the flue gas scrubber 1, a driving motor 8 is installed on the outer wall of one side of the turbine pump 7, and the driving motor 8 and the turbine pump 7 are connected. Coaxially connected, the turbine pump 7 is connected through the middle of the air pipe 6, a holding filler assembly 9 is arranged inside the absorption circulation tank 5, and an outlet pipe 11 is connected through the outer wall on the top side of the absorption circulation tank 5. In the sulfur recovery tail gas bubbling absorption and oxidation integrated equipment, the flue gas to be treated enters the flue gas washing box 1 through the air inlet pipe 2 for flue gas pre-washing. After pre-washing, the turbine pump 7 is driven by the driving motor 8 to work and the treated flue gas in the flue gas washing box 1 is pumped out and pressurized and transported to the absorption circulation tank 5 through the air pipe 6. The flue gas is oxidized and absorbed in the absorption circulation tank 5, and the treated flue gas is discharged through the outlet pipe 11.

[0023] Furthermore, connecting flanges are installed at the ends of the air inlet pipe 2 and the air outlet pipe 11, and the air inlet pipe 2 and the air outlet pipe 11 are connected through the connecting flanges, which is conducive to the expansion of the flue gas treatment equipment.

[0024] Furthermore, support legs 14 are distributed and installed on the bottom outer walls of the flue gas scrubbing box 1 and the absorption circulation tank 5 , and the flue gas scrubbing box 1 and the absorption circulation tank 5 are erected and supported by the support legs 14 .

[0025] In this embodiment, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The linkage spray assembly 4 includes a liquid storage tank 401 fixed on the outer wall of one side of the flue gas scrubbing box 1, a liquid pump 402 is installed on the top outer wall of the liquid storage tank 401, the liquid suction end of the liquid pump 402 is connected with a liquid suction pipe 403, and one end of the liquid suction pipe 403 passes through the interior of the liquid storage tank 401, the pumping end of the liquid pump 402 is connected with a pumping liquid main pipe 404, and one end of the pumping liquid main pipe 404 is distributed and connected with a pumping liquid branch pipe 405, and end pipes 406 are symmetrically rotated and installed on the outer walls of both sides of the top of the flue gas scrubbing box 1, and one end of the end pipe 406 passes through the outside of the flue gas scrubbing box 1 and is connected to the pumping liquid branch pipe 405. 5, a second nozzle 407 is installed on the outer wall of the end pipe 406, a transmission shaft 408 is rotatably installed on the inner wall of the flue gas scrubber 1 between the end pipes 406, a cam 409 is installed on the outer wall of the transmission shaft 408, and the cam 409 is located between the second nozzles 407 on both sides, the end of the transmission shaft 408 is coaxial with the turbine pump 7, a first magnet block 410 is embedded and fixed on the outer wall of the cam 409 on both sides, and a second magnet block 411 is fixed on the opposite outer wall of the second nozzle 407 on both sides of the cam 409, and the first magnet block 410 and the second magnet block 411 are fixed on the opposite outer wall of the second nozzle 407 on both sides of the cam 409. The iron block 411 is of the same polarity relative to the outer wall. During the flue gas pre-washing treatment process of the sulfur recovery tail gas bubbling absorption oxidation integrated equipment, the flue gas input from the air inlet pipe 2 is sprayed into the flue gas washing box 1 through the first nozzle 3. During the process, the control liquid pump 402 works to pump the desulfurization treatment liquid in the liquid storage tank 401 through the suction pipe 403, and inputs it into the end pipes 406 on both sides through the pump liquid main pipe 404 and the pump liquid branch pipe 405, and sprays it at each second nozzle 407. The sprayed desulfurization treatment liquid sprays the input flue gas. During the process, the turbine pump 7 works to treat the flue gas after treatment. The pump is pumped out, and the driving motor 8 drives the turbine pump 7 and also drives the transmission shaft 408 to rotate. The cam 409 on the transmission shaft 408 rotates. During the process, the distance between the first magnet block 410 on the cam 409 and the second magnet block 411 on the second nozzle 407 changes continuously. Under the repulsion of the same poles of the magnetic blocks, the end pipes 406 on both sides are driven to swing continuously, thereby driving the second nozzle 407 on the end pipe 406 to swing back and forth, so that the desulfurization treatment liquid and the flue gas in the flue gas washing box 1 are fully sprayed and contacted, thereby improving the efficiency and effect of the flue gas washing treatment.

[0026] Furthermore, an air injection port 13 is provided on the outer wall of the top side of the liquid storage tank 401 and the absorption circulation tank 5, and a top cover is provided on the top of the air injection port 13, and the desulfurization treatment liquid in the liquid storage tank 401 and the absorption circulation tank 5 is injected and supplemented through the air injection port 13.

[0027] Furthermore, the pump branch pipe 405 is a telescopic hose, so that the pump branch pipe 405 can swing along with the end pipe 406 without affecting the injection.

[0028] Furthermore, the second nozzle 407 and the first nozzle 3 are arranged opposite to each other, and both the second nozzle 407 and the first nozzle 3 are rotating nozzles, which improve the spraying effect and facilitate the fume scrubbing treatment.

[0029] In this embodiment, refer to Figure 1 , Figure 5 , Figure 6 and Figure 7 The holding packing assembly 9 includes a tube 901 embedded and fixed at the center of the top outer wall of the absorption circulation tank 5, a first piston 902 is arranged inside the tube 901, a connecting rod 903 is fixed on the bottom outer wall of the first piston 902, a second piston 904 is fixed on one end of the connecting rod 903 passing through the absorption circulation tank 5, a spring 905 is sleeved on the outer wall of the connecting rod 903 located below the first piston 902, and a first filter plate 90 is distributed and embedded and fixed on the top outer wall of the second piston 904. 6. A second filter plate 907 is fixed on the middle outer wall of the absorption circulation tank 5. A filler 908 is filled on the inner wall of the absorption circulation tank 5 between the second filter plate 907 and the second piston 904. One end of the gas delivery pipe 6 is connected to the outer wall of one side of the top of the cylinder 901. An air injection pipe 909 is connected to the outer wall of the other side of the top of the cylinder 901. A pressure relief valve 910 is installed at the end of the air injection pipe 909. One end of the air injection pipe 909 is connected to the outer wall of the bottom of the absorption circulation tank 5. The air injection pipe 909 and the absorption circulation tank 5 are connected to the outer wall of the bottom of the absorption circulation tank 5. A linkage flue gas distribution component 10 is provided at the connection of the collection circulation tank 5. The flue gas treated in the above-mentioned flue gas washing box 1 is input into the absorption circulation tank 5 through the air pipe 6 for oxidation absorption. The flue gas pumped out by the turbine pump 7 is first input into the barrel 901 through the air pipe 6. The pressure increase in the barrel 901 drives the first piston 902 and the connecting rod 903 to move downward, thereby driving the second piston 904 to move downward in the absorption circulation tank 5. The second piston 904 and the second filter plate 907 squeeze the filled filler, so that the filler in the middle of the absorption circulation tank 5 is kept tight at all times during operation. The turbine pump 7 continues to pump. When the air pressure input into the barrel 901 by the air pipe 6 reaches the threshold value of the pressure relief valve 910, the excess flue gas is input into the bottom of the absorption circulation tank 5 through the air injection pipe 909. The flue gas input from the bottom of the absorption circulation tank 5 rises and passes through the gap in the filler, which increases the contact time between the flue gas and the desulfurization treatment liquid in the absorption circulation tank 5, thereby improving the oxidation absorption effect of the flue gas in the absorption circulation tank 5.

[0030] Furthermore, a box door 12 is installed through the outer wall of the absorption circulation tank 5 on one side of the top of the second filter plate 907, and the filling material in the absorption circulation tank 5 can be supplemented and replaced through the box door 12.

[0031] In this embodiment, refer to Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 8The linked flue gas distribution component 10 includes a turbine disk 101 fixed on the outer wall of the bottom of the absorption circulation tank 5, a rotating main pipe 103 is rotatably connected on the middle outer wall of the turbine disk 101, and the rotating main pipe 103 is located on the outer wall of one end of the turbine disk 101 and is fixed with an impeller 102. One end of the injection pipe 909 is connected to the outer wall of one side of the turbine disk 101, and the outer wall of the other side of the turbine disk 101 is connected to a bend pipe 104. The rotating main pipe 103 passes through one end of the outside of the turbine disk 101 and is rotatably connected to one end of the bend pipe 104, and a rotating joint 105 is installed at the rotating connection. The rotating main pipe 103 passes through the outer wall of the end of the absorption circulation tank 5 and is distributed and connected with a rotating branch pipe 106, and the bottom outer wall of the rotating branch pipe 106 is distributed and opened with gas injection holes 107. During the process of flue gas being input into the absorption circulation tank 5 through the gas delivery pipe 6, the turbine pump 7 continues to pump, and the gas delivery pipe 6 is input into the barrel When the air pressure in 901 reaches the threshold value of the pressure relief valve 910, the excess flue gas is first input into the turbine disc 101 through the gas injection pipe 909 and discharged through the elbow 104. During the process, the flue gas pumped by the pump impacts the impeller 102, which will drive the impeller 102 and the rotating main pipe 103 to rotate. The flue gas discharged from the elbow 104 is input into the rotating main pipe 103 through the rotary joint 105. The setting of the rotary joint 105 ensures that the rotation of the rotating main pipe 103 is not affected during the gas transmission process of the elbow 104 and the rotating main pipe 103. The rotating main pipe 103 will drive the rotating branch pipe 106 to rotate inside the absorption circulation tank 5. The process flue gas is input into the absorption circulation tank 5 through the gas injection hole 107 on the rotating branch pipe 106, so that the flue gas is evenly distributed and passed below the bottom liquid level in the absorption circulation tank 5, so that the flue gas undergoes bubbling reaction and oxidation reaction in the absorption circulation tank 5, oxidation at the bottom and absorption at the top, which can greatly improve the absorption efficiency.

[0032] Working principle: When the present invention is in use, during the use of the sulfur recovery tail gas bubbling absorption oxidation integrated equipment, the flue gas input from the air inlet pipe 2 is sprayed into the flue gas washing box 1 through the first nozzle 3. During the process, the control liquid pump 402 works to pump the desulfurization treatment liquid in the liquid storage tank 401 through the liquid suction pipe 403, and inputs it into the end pipes 406 on both sides through the pump liquid main pipe 404 and the pump liquid branch pipe 405, and sprays it at each second nozzle 407. The sprayed desulfurization treatment liquid sprays the input flue gas. During the process, the turbine pump 7 works to pump out the treated flue gas. The driving motor 8 drives the turbine pump 7 and also drives the transmission shaft 408 to rotate. The cam 409 on the transmission shaft 408 rotates. During the rotation, the distance between the first magnet block 410 on the cam 409 and the second magnet block 411 on the second nozzle 407 is constantly changing. Under the repulsion of the same poles of the magnetic blocks, the end pipes 406 on both sides are driven to swing continuously, thereby driving the second nozzle 407 on the end pipe 406 to swing back and forth, so that the desulfurization treatment liquid and the flue gas in the flue gas washing box 1 are fully sprayed and contacted, thereby improving the efficiency and effect of the flue gas washing treatment. The treated flue gas in the flue gas washing box 1 is input into the absorption circulation tank 5 through the gas pipeline 6 for oxidation absorption. During the process, the flue gas pumped out by the turbine pump 7 is first input into the barrel 901 through the gas pipeline 6. The pressure rise in the barrel 901 drives the first piston 902 and the connecting rod 903 to move The second piston 904 moves downward, thereby driving the second piston 904 to move downward in the absorption circulation tank 5. The second piston 904 and the second filter plate 907 squeeze the stuffing filled in the absorption circulation tank 5. During the operation, the stuffing in the middle of the absorption circulation tank 5 is kept tight at all times. The turbine pump 7 continues to pump. When the air pressure input into the barrel 901 by the air delivery pipe 6 reaches the threshold value of the pressure relief valve 910, the excess flue gas is first input into the turbine disc 101 through the air injection pipe 909 and discharged through the elbow 104. During the process, the pumped flue gas impacts the impeller 102, which will drive the impeller 102 and the rotating main pipe 103 to rotate. The flue gas discharged from the elbow 104 is input into the rotating main pipe 103 through the rotary joint 105. The setting of the rotary joint 105 makes the elbow The pipe 104 and the rotating main pipe 103 do not affect the rotation of the rotating main pipe 103 during the gas transmission process. The rotating main pipe 103 will drive the rotating branch pipe 106 to rotate inside the absorption circulation tank 5. The process flue gas is input into the absorption circulation tank 5 through the gas injection hole 107 on the rotating branch pipe 106, so that the flue gas is evenly distributed and passed into the bottom liquid level of the absorption circulation tank 5, so that the flue gas undergoes bubbling reaction and oxidation reaction in the absorption circulation tank 5, oxidation at the bottom and absorption at the top, which can greatly improve the absorption efficiency. The flue gas input from the bottom of the absorption circulation tank 5 rises and passes through the gaps in the filler, which increases the contact time between the flue gas and the desulfurization treatment liquid in the absorption circulation tank 5, thereby improving the oxidation and absorption effect of the flue gas in the absorption circulation tank 5.

[0033] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A sulfur recovery tail gas bubbling absorption and oxidation integrated equipment, characterized in that: The invention comprises a flue gas scrubbing box (1), wherein an air inlet pipe (2) is connected to a central outer wall of one side of the flue gas scrubbing box (1), wherein the air inlet pipe (2) is connected to a top outer wall of one end of the flue gas scrubbing box (1), and a first nozzle (3) is installed on the top outer wall of the flue gas scrubbing box (1), wherein a linkage spray assembly (4) is arranged inside the flue gas scrubbing box (1), an absorption circulation tank (5) is arranged on an outer wall of one side of the flue gas scrubbing box (1), and a through hole is formed between the absorption circulation tank (5) and the flue gas scrubbing box (1). A gas transmission pipe (6) is connected, a turbine pump (7) is installed on one side outer wall of the flue gas scrubbing box (1), a drive motor (8) is installed on one side outer wall of the turbine pump (7), the drive motor (8) and the turbine pump (7) are coaxially connected, the turbine pump (7) is connected through the middle of the gas transmission pipe (6), a holding filler assembly (9) is arranged inside the absorption circulation tank (5), and an air outlet pipe (11) is connected through the outer wall of one side of the top of the absorption circulation tank (5).

2. The sulfur recovery tail gas bubbling absorption and oxidation integrated equipment according to claim 1, characterized in that: The linkage spray assembly (4) comprises a liquid storage box (401) fixed on the outer wall of one side of the flue gas scrubbing box (1); a liquid pump (402) is installed on the top outer wall of the liquid storage box (401); a liquid suction end of the liquid pump (402) is connected to a liquid suction pipe (403), and one end of the liquid suction pipe (403) passes through the interior of the liquid storage box (401); a pump liquid end of the liquid pump (402) is connected to a pump liquid main pipe (404); one end of the pump liquid main pipe (404) is distributed and connected to a pump liquid branch pipe (405); end pipes (406) are symmetrically installed on the outer walls of both sides of the top of the flue gas scrubbing box (1); one end of the end pipe (406) passes through the outside of the flue gas scrubbing box (1) and is connected to one end of the pump liquid branch pipe (405); A second nozzle (407) is installed through the outer wall of the end pipe (406); a transmission shaft (408) is rotatably installed on the inner wall of the flue gas scrubbing box (1) located between the end pipes (406); a cam (409) is installed on the outer wall of the transmission shaft (408); the cam (409) is located between the second nozzles (407) on both sides; an end of the transmission shaft (408) is coaxial with the turbine pump (7); first magnet blocks (410) are embedded and fixed on the outer walls on both sides of the cam (409); second magnet blocks (411) are correspondingly fixed on the opposite outer walls of the second nozzles (407) on both sides of the cam (409); and the first magnet block (410) and the second magnet block (411) have the same polarity relative to the outer walls.

3. The sulfur recovery tail gas bubbling absorption and oxidation integrated equipment according to claim 2, characterized in that: The holding filler assembly (9) comprises a tube (901) inlaid and fixed at the center of the top outer wall of the absorption circulation tank (5); a first piston (902) is arranged inside the tube (901); a connecting rod (903) is fixed on the bottom outer wall of the first piston (902); a second piston (904) is fixed at one end of the connecting rod (903) that passes through the inside of the absorption circulation tank (5); a spring (905) is sleeved on the outer wall of the connecting rod (903) below the first piston (902); a first filter plate (906) is distributed and inlaid and fixed on the top outer wall of the second piston (904); A second filter plate (907) is fixed on the middle outer wall, and a filler (908) is filled on the inner wall of the absorption circulation tank (5) located between the second filter plate (907) and the second piston (904). One end of the gas transmission pipe (6) is connected to the outer wall on one side of the top end of the tube (901), and an air injection pipe (909) is connected to the outer wall on the other side of the top end of the tube (901). A pressure relief valve (910) is installed at the end of the air injection pipe (909). One end of the air injection pipe (909) is connected to the outer wall at the bottom of the absorption circulation tank (5), and a linkage flue gas distribution component (10) is provided at the connection between the air injection pipe (909) and the absorption circulation tank (5).

4. The sulfur recovery tail gas bubbling absorption and oxidation integrated equipment according to claim 3, characterized in that: The linked flue gas distribution assembly (10) comprises a turbine disc (101) fixed on the bottom outer wall of the absorption circulation tank (5); a rotating main pipe (103) is rotatably connected to the middle outer wall of the turbine disc (101); an impeller (102) is fixedly mounted on the outer wall of one end of the rotating main pipe (103) located inside the turbine disc (101); one end of the gas injection pipe (909) is connected to the outer wall of one side of the turbine disc (101); a bend pipe (104) is connected to the outer wall of the other side of the turbine disc (101); one end of the rotating main pipe (103) passing through the outside of the turbine disc (101) is rotatably connected to one end of the bend pipe (104); a rotating joint (105) is installed at the rotatable connection; a rotating branch pipe (106) is distributed and connected to the outer wall of the end of the rotating main pipe (103) passing through the inside of the absorption circulation tank (5); and gas injection holes (107) are distributed and opened on the bottom outer wall of the rotating branch pipe (106).

5. The sulfur recovery tail gas bubbling absorption and oxidation integrated equipment according to claim 3, characterized in that: The absorption circulation tank (5) is provided with a box door (12) penetratingly mounted on an outer wall on one side of the top of the second filter plate (907).

6. The sulfur recovery tail gas bubbling absorption and oxidation integrated equipment according to claim 2, characterized in that: An air injection port (13) is provided on the outer wall of the top side of the liquid storage tank (401) and the absorption circulation tank (5), and a top cover is provided on the top of the air injection port (13).

7. The sulfur recovery tail gas bubbling absorption and oxidation integrated equipment according to claim 1, characterized in that: Connecting flanges are installed at the ends of the air inlet pipe (2) and the air outlet pipe (11).

8. The sulfur recovery tail gas bubbling absorption and oxidation integrated equipment according to claim 2, characterized in that: The pump liquid branch pipe (405) is a telescopic hose.

9. The sulfur recovery tail gas bubbling absorption and oxidation integrated equipment according to claim 1, characterized in that: Support feet (14) are distributed and installed on the outer walls of the bottoms of the flue gas scrubbing box (1) and the absorption circulation tank (5).

10. The sulfur recovery tail gas bubbling absorption and oxidation integrated equipment according to claim 2, characterized in that: The second nozzle (407) and the first nozzle (3) are arranged opposite to each other, and both the second nozzle (407) and the first nozzle (3) are rotating nozzles.

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