A skid-mounted multi-stage purification device for high-sulfur flash gas

Abstract

The present application relates to the technical field of absorption tower, particularly relates to a pry-mounted high-sulfur flash gas multi-stage purification device, which comprises a pry-mounted base, a gas distribution ring movably arranged at the inner bottom of the absorption tower, a packing tray fixedly installed above the gas distribution ring in the absorption tower, and a shaking dispersion assembly arranged in the absorption tower and used for driving the gas distribution ring to perform annular swinging movement, wherein the shaking dispersion assembly comprises a fixed bottom plate, a shaking ring and a shaking column; the gas distribution ring is made to perform composite annular swinging under the constraint of double-orthogonal rotating shafts through the shaking dispersion assembly, so as to disrupt the airflow distribution from the source; the rising waste gas is subjected to rotary cutting and spiral mixing through the rotating turbulence assembly, so as to homogenize the velocity field and the concentration field; the multi-arc-shaped spraying frame is swung to generate a dynamic wave-shaped liquid curtain through the twisting covering assembly, so as to cover different radial regions of the packing tray; the packing particles are subjected to multi-dimensional cross mixing through the staggered material stirring assembly in the superposition of linear reciprocating and circular arc swinging two stirring modes.

Description

Technical Field

[0001] This invention relates to the field of absorption tower technology, and in particular to a skid-mounted multi-stage purification device for high-sulfur flash vapor. Background Technology

[0002] In the field of sulfur-containing natural gas processing, skid-mounted multi-stage purification units are widely used due to their advantages of high integration and convenient transportation. These units typically separate flash vapor in stages and introduce it into an absorption tower. The gas flow is initially distributed by a gas distributor at the bottom of the tower, and the upper spraying device inside the tower sprays the absorbent liquid onto the surface of the packing layer. Mass transfer reaction occurs between the gas and the liquid film between the packing particles.

[0003] However, most existing bottom air distribution structures are fixed distributors, which can only achieve single mechanical division of airflow and lack the ability to continuously disturb and redistribute the airflow direction. Although some devices have added rotating disturbance components above the distributor, the bottom air distribution action and the upper airflow disturbance action are driven independently and lack linkage design. They cannot form a gradient enhanced flow field control from primary dispersion to fine homogenization, resulting in obvious velocity stratification and concentration patches in the rising exhaust gas before entering the packing layer, and it is difficult to obtain uniform air intake conditions in the packing cross section.

[0004] Furthermore, traditional spraying methods cover a relatively fixed area, which can easily lead to blind spots and weak liquid areas at the edges. The existing stirring mechanism and spraying device are driven independently, lacking mechanical synchronization. In actual operation, there are often temporal and spatial mismatches between the changes in the spray liquid curtain coverage area and the position of the packing particles. This results in misalignments such as the liquid curtain sweeping over while the particles remain stationary, or the particles turning over but no new liquid is supplied. The movement of the liquid and solid phases cannot achieve coordinated coupling, which limits the sufficiency of gas-liquid-solid three-phase contact and the potential for improving the overall desulfurization efficiency of the absorption tower. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a skid-mounted multi-stage purification device for high-sulfur flash vapor.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a skid-mounted multi-stage purification device for high sulfur flash vapor, including a skid-mounted base, an inlet separator, a primary separator, a secondary separator and an absorption tower are provided on the top of the skid-mounted base, a gas distribution ring for introducing waste gas is movably provided at the bottom of the absorption tower, a packing disc is fixedly installed inside the absorption tower above the gas distribution ring, and a shaking dispersion component is provided inside the absorption tower to drive the gas distribution ring to make a circular swaying motion, thereby disrupting the airflow direction from the source; the shaking dispersion component includes a fixed base plate, a shaking ring and a shaking column. The swaying column is equipped with a rotating turbulence component, which is used to rotate and turbulent the rising exhaust gas after the gas distribution ring has been initially dispersed, forming a uniform velocity field and concentration field below the packing disk. The rotating turbulence component includes a rotating plate and a spiral turbulence ring. When the swaying column drives the gas distribution ring to sway, the rotating plate rotates around the central axis of the gas distribution ring itself. A spray frame is installed above the packing disc. The spray frame consists of multiple arc-shaped spray seats of different sizes. A torsion covering assembly is installed inside the absorption tower to drive the spray frame to swing and twist above the packing disc. This causes the absorbent sprayed by each arc-shaped spray seat to form multiple sets of wave-shaped liquid curtains that dynamically change with the swing of the spray frame above the packing disc, so as to cover different radial areas of the packing disc. The torsion covering assembly includes a connecting rod and a rotating disc. The bottom of the connecting rod extends through into the stuffing disk. The bottom of the connecting rod is equipped with a cross-mixing component, which is used to cross-mix the particles filled inside the stuffing disk in multiple dimensions. The cross-mixing component includes an incomplete gear, a swing rod, and a cross rod. When the connecting rod drives the swing rod to swing inside the stuffing disk, it simultaneously drives the cross rod to cross-poke between the stuffing particles.

[0007] As a preferred embodiment of the present invention, a flash tank is provided on the top of the skid-mounted base. The gas phase outlet of the flash tank is connected to the inlet of the inlet separator. The inlet separator, the primary separator, and the secondary separator are connected in series. The outlet of the secondary separator is connected to the gas phase inlet at the bottom of the absorption tower, so that the sulfur-containing flash vapor discharged from the flash tank enters the absorption tower after three-stage separation. The shaking dispersion assembly also includes a motor base. A fixed base plate is fixedly installed on the inner wall of the absorption tower at the gas phase inlet. A shaking ring is movably connected to the top of the fixed base plate through a first rotating shaft. A shaking column is movably connected to the through hole of the shaking ring through a second rotating shaft. The axis of the first rotating shaft and the axis of the second rotating shaft are perpendicular to each other so that the shaking column can achieve a compound swaying motion. A motor base is fixedly installed at the top center of the fixed base plate. A first motor is fixedly installed inside the motor base. An arc-shaped drive arm is connected through the output end of the first motor through the motor base.

[0008] The arc-shaped drive arm is movable on the top outer side of the motor base. The bottom end of the rocking column is connected to the top of the arc-shaped drive arm. A connecting plate is fixedly installed on the end of the rocking column away from the arc-shaped drive arm. The gas distribution ring is fixedly installed on the connecting plate. The rocking column is located at the bottom center of the gas distribution ring. Multiple cross-shaped distribution pipes are fixedly installed inside the gas distribution ring. Each distribution pipe has several distribution holes on the side away from the rocking column. The distribution holes are used for the discharge of exhaust gas.

[0009] As a preferred technical solution of the present invention, a control cabinet is also provided on the top of the skid-mounted base, which is responsible for monitoring the operating pressure, flow rate and temperature of the entire line, and automatically controlling the start, stop and switching of the water pump and valve. A booster pump for pressurizing gas delivery is also fixedly installed on the top of the skid-mounted base. The rotating turbulence assembly also includes a rotating hole. A second motor is fixedly installed on the inner top of the rocking column. A drive rod is fixedly installed on the output end of the second motor. The top of the drive rod extends through to the outer side of the top of the rocking column. Three rotating plates are evenly installed on the top of the drive rod.

[0010] Each rotating plate has several rotating holes, and the rotating plate moves above the top of the gas distribution ring. Several spiral turbulence rings are fixedly installed on the top of each rotating plate.

[0011] As a preferred embodiment of the present invention, the top of the skid-mounted base is provided with a membrane assembly for deep gas removal, the torsion cover assembly also includes a third motor, a motor cover is fixedly installed on the outer side of the top of the absorption tower, the third motor is fixedly installed inside the motor cover, a support plate is fixedly installed on the inner wall of the absorption tower, a connecting rod is movably connected to the support plate, an L-shaped torsion rod is fixedly installed at the top of the connecting rod, a T-shaped drive rod is movably connected to the top of the L-shaped torsion rod, and a rotating disk is fixedly installed at the output end of the third motor through a rotating shaft, the rotating disk moving inside the absorption tower.

[0012] The rotating disk has an arc-shaped drive groove, which is matched in size with the T-shaped drive rod. The T-shaped drive rod moves within the arc-shaped drive groove. A spray frame is fixedly installed on the top of the connecting rotating rod. The spray frame is located below the L-shaped torsion rod. Several spray heads are fixedly installed on the bottom of the arc-shaped spray seat. The spray frame swings around the connecting rotating rod inside the absorption tower.

[0013] As a preferred embodiment of the present invention, the staggered mixing assembly further includes a limiting base plate, a limiting base plate is fixedly installed on the inner wall of the filling disc, a moving column is slidably sleeved between the limiting base plates, an incomplete gear is fixedly installed at the bottom end of the connecting rod, and several rack blocks are fixedly installed on the moving column, with the incomplete gear and rack blocks engaging in transmission.

[0014] Several staggered rods are fixedly installed at both ends of the moving column on the side away from the limiting base plate. Several inclined rods are fixedly installed on each staggered rod. The inclined rods disturb the filling particles inside the stuffing disc. A swing rod is fixedly installed at the bottom of the connecting rotating rod. Several arc-shaped swing rings are evenly installed on the swing rod. The swing rod and the arc-shaped swing rings move inside the stuffing disc.

[0015] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. In this invention, the gas distribution ring achieves a compound annular swaying motion under the constraint of the staggered rotating shafts by a shaking dispersion component, thus disrupting the airflow direction from the source. The first motor drives the bottom end of the shaking column to make a circular translation through the arc-shaped drive arm. Due to the constraint of the shaking ring and the two orthogonal rotating shafts, the upper end of the middle section of the shaking column forms a compound swaying motion with rich trajectories. This motion causes the gas distribution ring and its inner cross distribution tube to make synchronous annular swaying motions. The orientation of each distribution hole changes in real time, and multiple exhaust gas flows are continuously redistributed and intertwined on the tower cross section, effectively reducing the deviation flow, short circuit and channeling that are easy to occur in fixed gas distribution. This allows the gas phase to achieve preliminary homogenization of the entire cross section before entering the packing disk, providing more uniform inflow conditions for subsequent gas-liquid contact.

[0016] 2. In this invention, the rotating baffle assembly enables the rotating plate to rotate independently around the central axis of the gas distribution ring and to synchronously stir with the spiral baffle ring, forming a micro-swirling velocity field. The second motor inside the rocking column drives the drive rod, which in turn drives the three rotating plates with rotating holes to rotate continuously above the gas distribution ring, generating radial cutting and circumferential traction on the rising airflow. At the same time, the spiral baffle ring on the plate rotates with the gas, applying continuous spiral disturbance to the passing and surrounding gas, promoting the mixing of airflows at different radial positions. This assembly further homogenizes the local concentration patches and velocity differences in the rising exhaust gas, forming a more uniform velocity field and concentration field, which helps to obtain similar inlet driving force at all parts of the packing disc cross-section, thereby effectively improving the packing utilization rate and mass transfer efficiency.

[0017] 3. In this invention, the reciprocating torsional motion of the connecting rod is achieved through the torsion covering component, which drives the multi-arc spray frame to swing and form a dynamic waveform liquid curtain. The output of the third motor cooperates with the T-shaped drive rod through the arc-shaped drive groove on the rotating disk to convert the continuous rotation into the stable reciprocating torsion of the L-shaped torsion rod and the connecting rod. The spray frame is composed of multiple arc-shaped spray seats of different sizes, which swing and twist with the connecting rod. The absorbent sprayed by each arc-shaped spray seat forms multiple sets of undulating and overlapping waveform liquid curtains under the swing. Its coverage area dynamically sweeps different radial areas of the packing disk, effectively reducing the spray blind area and edge weak liquid area generated by traditional fixed spraying, so that the absorbent can be distributed more evenly on the upper surface of the packing disk, helping the packing particles to form a more complete mass transfer liquid film.

[0018] 4. In this invention, the intermittent meshing of the incomplete gear and rack block drives the linear reciprocating motion of the intermittent rod, and the synchronous arc swing of the swing rod and the arc swing ring, to achieve multi-dimensional cross-mixing of the filler particles. The incomplete gear connected to the bottom of the rotating rod drives the moving column to make pulse-like reciprocating linear motion along the limiting base plate. The intermittent rod and the inclined rod push and pull the filler particles at an inclined angle, generating crisscross displacement. At the same time, the swing rod and the arc swing ring fixed to the rotating rod make circular arc reciprocating swing in the filler disk, stirring the circumferential particles. The two different forms and directions of stirring are superimposed in the bed to form a cross-mixing effect, which effectively prevents the filler particles from caking, bridging and channeling, keeps the bed relatively loose and breathable, and promotes the tearing and renewal of the absorbent liquid film, so as to keep the gas-liquid-solid three-phase contact interface active.

[0019] 5. In this invention, the coordinated operation of the shaking dispersion component and the rotating turbulence component achieves gradient-enhanced flow field control of gas from annular swaying dispersion to rotating cutting micro-mixing. The shaking dispersion component causes the gas distribution ring to sway in a compound manner, dispersing the concentrated flow stream into multiple fine airflows with real-time changes in direction, completing the primary spatial redistribution. The rotating turbulence component rotates around the same central axis at independent speeds, and through the rotating plate and spiral turbulence ring, it performs secondary rotational turbulence and spiral mixing on the initially uniformly distributed but still potentially pulsating rising airflow. The two-stage components work together vertically, with their movements not interfering with each other and their effects continuing. This allows the exhaust gas to undergo large-scale swaying mixing and then small-scale rotating micro-mixing before contacting the packing particles, ultimately forming an incoming flow state with small velocity deviation and relatively uniform concentration across the entire cross-section. This helps to achieve uniform distribution of the airflow across the entire cross-section and efficient utilization of the packing.

[0020] 6. In this invention, the linkage between the torsion covering component and the staggered stirring component achieves mechanical synchronization of the dynamic sweeping of the spray liquid curtain and the multi-dimensional cross-stirring of the packing particles, thus coordinating and coupling the liquid and solid phases. When the connecting rotating rod is driven by the torsion covering component to reciprocate, it not only drives the spray frame to swing and generate a wave-shaped liquid curtain, but also synchronously pulls the staggered stirring component at the bottom to work. The incomplete gear drives the moving column and the staggered rod to perform linear pulse stirring, while the swinging rod and the arc-shaped swinging ring perform arc-shaped stirring. The spraying and stirring are rigidly linked by the same power shaft to maintain coordinated movement. When the liquid curtain sweeps over a certain area, the packing particles below that area are turned over in time by the staggered rod or the arc-shaped swinging ring, so that the absorbent liquid can be directly sprayed onto the freshly exposed particle surface and spread into a film, while the old liquid film is drained away and replaced. This matching action reduces the misalignment phenomenon caused by the liquid curtain sweeping over while the particles remain still, resulting in poor wetting or the particles turning over but no new liquid supply. It enhances the sufficiency of the gas-liquid-solid three-phase contact and the mass transfer rate, thus effectively improving the desulfurization and purification efficiency of the absorption tower.

[0021] 7. In this invention, the dynamic uniformity of the initial gas phase distribution and the multi-dimensional cross-mixing of the packing bed are enhanced through the vertical coordination and motion coupling of the shaking dispersion component and the staggered mixing component, thereby achieving spatiotemporal complementary reinforcement. This fundamentally constructs a high-quality mass transfer condition with uniform inflow and activated bed throughout the entire tower section. The shaking dispersion component causes the gas distribution ring to continuously perform compound annular oscillation under the constraint of the staggered rotating shaft. The flow direction of the gas ejected from each distribution hole is scanned in real time. The velocity field and concentration field of the gas flow entering the bottom of the packing disk are deeply homogenized before entering the bed, eliminating local high-speed flow deviation and dead zones caused by fixed gas distribution. At the same time, the staggered mixing component is driven by the intermittent meshing of incomplete gears and rack blocks. The staggered rods and inclined rods perform pulsed reciprocating push and pull along the limiting base plate. The swing rods and arc-shaped swing rings perform arc-shaped tumbling in the circumferential direction, causing the packing particles to undergo forced misalignment and reorganization in the axial, radial, and circumferential directions. The bed always maintains a loose and breathable dynamic stacking structure. The uniform upward airflow across the entire cross section and the isotropic particle bed maintained by the staggered mixing mutually enhance each other: on the one hand, the uniform airflow avoids impulsive hollowing or compaction of the local particle bed, making the mixing load at all points of the staggered rods and swing rings tend to be consistent, preventing packing separation and channeling caused by differences in gas velocity; on the other hand, the particle bed is constantly renewed and rearranged by staggered mixing, and the porosity and permeability of the bed are highly consistent in time and space, which in turn consolidates and continues the uniform effect of gas phase pre-distribution, avoiding secondary flow deviation inside the bed; the shaking dispersion and staggered mixing work together to match the large-scale oscillating mixing of the gas phase and the micro-scale cross-mixing of particles in time, and the gas-solid two-phase distribution state is optimized synchronously, effectively eliminating abnormal phenomena such as airflow short-circuiting, dry cone zone, particle bridging and local flooding that are prone to occur in traditional fixed gas distribution combined with static bed, significantly improving the operating flexibility and anti-clogging ability of the packing disc, and ensuring the long-term efficient and stable operation of the absorber. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the skid-mounted base of the present invention; Figure 3 This is a schematic diagram of the absorption tower structure of the present invention; Figure 4 This is a schematic diagram of the gas phase inlet of the present invention; Figure 5 This is a schematic diagram of the structure of the fixed base plate of the present invention; Figure 6 This is a schematic diagram of the gas distribution ring structure of the present invention; Figure 7 This is a schematic diagram of the structure of the second motor of the present invention; Figure 8 This is a schematic diagram of the support plate of the present invention; Figure 9This is a schematic diagram of the rotating disk of the present invention; Figure 10 This is a schematic diagram of the structure of the moving column of the present invention.

[0023] The components are as follows: 10. Skid-mounted base; 11. Inlet separator; 12. Primary separator; 13. Secondary separator; 14. Flash tank; 15. Gas phase inlet; 16. Control cabinet; 17. Booster pump; 18. Membrane module; 20. Absorber tower; 21. Fixed base plate; 22. Motor base; 23. First motor; 24. Arc-shaped drive arm; 25. Motor cover; 26. Third motor; 30. Shaking ring; 31. First rotating shaft; 32. Second rotating shaft; 33. Shaking column; 34. Gas distribution ring; 35. Connecting plate; 36. Distribution pipe; 37. 40. Distribution holes; 41. Second motor; 42. Drive rod; 43. Rotating plate; 44. Rotating hole; 55. Spiral turbulence ring; 66. Support plate; 57. Connecting rod; 58. L-shaped torsion bar; 59. T-shaped drive rod; 50. Rotating disk; 51. Arc-shaped drive groove; 52. Spray frame; 53. Arc-shaped spray seat; 54. Spray head; 65. Packing disc; 66. Limiting base plate; 67. Moving column; 68. Incomplete gear; 69. Rack block; 60. Interlaced rod; 61. Diagonal rod; 62. Swing rod; 63. Arc-shaped swing ring. Detailed Implementation

[0024] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0025] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, a skid-mounted multi-stage purification device for high-sulfur flash vapor includes a skid-mounted base 10. An inlet separator 11, a primary separator 12, a secondary separator 13, and an absorption tower 20 are mounted on the top of the skid-mounted base 10. A gas distribution ring 34 for introducing waste gas is movably installed at the bottom of the absorption tower 20. A packing disc 60 is fixedly installed above the gas distribution ring 34 inside the absorption tower 20. A shaking dispersion assembly is installed inside the absorption tower 20 to drive the gas distribution ring 34 in a circular swaying motion, disrupting the airflow direction at the source. The shaking dispersion assembly includes a fixed base plate 21, a shaking ring 30, and a shaking column 33. A flash tank 14 is mounted on the top of the skid-mounted base 10. The gas phase outlet of the flash tank 14 is connected to the inlet of the inlet separator 11. The inlet separator 11, the primary separator 12, and the secondary separator 13 are arranged sequentially... The outlet of the secondary separator 13 is connected in series with the gas phase inlet 15 at the bottom of the absorption tower 20, so that the sulfur-containing flash vapor discharged from the flash tank 14 enters the absorption tower 20 after three-stage separation. The shaking dispersion assembly also includes a motor base 22. A fixed base plate 21 is fixedly installed on the inner wall of the absorption tower 20 at the gas phase inlet 15. The top of the fixed base plate 21 is movably connected to a shaking ring 30 through a first rotating shaft 31. A shaking column 33 is movably connected to the through hole of the shaking ring 30 through a second rotating shaft 32. The axis of the first rotating shaft 31 and the axis of the second rotating shaft 32 are perpendicular to each other so that the shaking column 33 can achieve compound swinging motion. The motor base 22 is fixedly installed at the top center of the fixed base plate 21. A first motor 23 is fixedly installed inside the motor base 22. The output end of the first motor 23 passes through the motor base 22 and is connected to an arc-shaped drive arm 24.

[0026] The arc-shaped drive arm 24 is movable on the top outer side of the motor base 22. The bottom end of the rocking column 33 is connected to the top of the arc-shaped drive arm 24. A connecting plate 35 is fixedly installed on the end of the rocking column 33 away from the arc-shaped drive arm 24. The gas distribution ring 34 is fixedly installed on the connecting plate 35. The rocking column 33 is located at the bottom center of the gas distribution ring 34. Multiple cross-shaped distribution pipes 36 are fixedly installed inside the gas distribution ring 34. Each distribution pipe 36 has several distribution holes 37 on the side away from the rocking column 33. The distribution holes 37 are used for the discharge of exhaust gas.

[0027] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7After being separated in three stages—flash tank 14, inlet separator 11, primary separator 12, and secondary separator 13—sulfur-containing flash vapor is introduced into the annular cavity of gas distribution ring 34 through gas phase inlet 15 at the bottom of absorption tower 20 for collection and pressure equalization. Multiple cross-shaped distribution pipes 36 are fixedly installed inside the gas distribution ring 34. Each distribution pipe 36 has several distribution holes 37 on the side away from the shaking column 33. The pressure-equalized gas is discharged in the form of multiple fine streams through the distribution holes 37, completing the initial mechanical division from concentrated jet to multiple small streams. This static pre-distribution method disperses the gas flow into multiple fine streams when it enters the tower, reducing the impact of a single concentrated jet on the flow field of the tower cross section.

[0028] After the first motor 23 inside the motor base 22 at the top center of the fixed base plate 21 is started, the output end of the first motor 23 drives the arc-shaped drive arm 24 to rotate. The arc-shaped drive arm 24 moves on the top outer side of the motor base 22, and its top end is connected to the bottom end of the rocking column 33. The rotational motion of the arc-shaped drive arm 24 is converted into the circular translation of the bottom end of the rocking column 33. The middle part of the rocking column 33 passes through the through hole of the rocking ring 30 and is movably connected to the rocking ring 30 through the second rotating shaft 32. The rocking ring 30 itself is movably connected to the fixed base plate 21 through the first rotating shaft 31. The axis of the first rotating shaft 31 and the axis of the second rotating shaft 32 are perpendicular to each other. When the bottom end of the rocking column 33 makes a circular translation, its upper end, under the joint constraint of the rocking ring 30 and the two rotating shafts with perpendicular axes, generates a complex rocking motion with rich and varied motion trajectories. This trajectory is not a single circular or linear motion, but a composite superposition of the two, making the disturbance range larger and the spatial coverage more uniform.

[0029] The top of the swaying column 33 is fixedly connected to the gas distribution ring 34 via the connecting plate 35, and the swaying column 33 is located at the bottom center of the gas distribution ring 34. The compound swaying motion of the swaying column 33 is synchronously transmitted to the gas distribution ring 34, causing the entire gas distribution ring 34 to perform a circular swaying motion. During this process, the orientation of each distribution hole 37 is in a state of continuous dynamic change. The multiple small gas streams discharged are continuously redistributed, intertwined and mixed on the cross section of the absorption tower 20, which effectively reduces the local jet, deflection and channeling phenomena that are easy to be generated by the fixed distributor due to the single gas outlet direction. It also reduces the possibility of the gas stream climbing along the tower wall or concentrating in the central area, making the gas phase distribution on the entire cross section of the packing disc 60 more uniform.

[0030] The shaking dispersion component employs a combination of static pre-distribution and dynamic swaying disturbance to perform dual homogenization of the airflow. The first motor 23 is mounted on a fixed base plate 21, which is located at the gas inlet 15. The entire component has a compact structure, and the transmission path is sequentially transmitted from the arc-shaped drive arm 24, the shaking column 33, the shaking ring 30 to the gas distribution ring 34. This ensures high reliability and makes it suitable for long-term stable operation in the limited space of a skid-mounted device. After being fully homogenized by this component, the airflow has a relatively uniform velocity and concentration distribution before entering the packing disc 60, creating uniform inflow conditions for subsequent gas-liquid contact. This also reduces the homogenization burden on the subsequent rotating disturbance component, making the staged homogenization design of the entire gas distribution system more synergistic.

[0031] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The swaying column 33 is equipped with a rotating turbulence assembly, which is used to rotate and turbulent the rising exhaust gas after the gas distribution ring 34 has been initially dispersed, forming a uniform velocity field and concentration field below the packing disc 60. The rotating turbulence assembly includes a rotating plate 42 and a spiral turbulence ring 44. When the swaying column 33 drives the gas distribution ring 34 to sway, the rotating plate 42 rotates around the central axis of the gas distribution ring 34. The top of the skid-mounted base 10 is also equipped with a control cabinet 16, which is responsible for monitoring the pressure, flow rate and temperature of the entire line, and automatically controlling the start, stop and switch of the water pump and valve. The top of the skid-mounted base 10 is also fixedly installed with a booster pump 17 for pressurizing the gas delivery. The rotating turbulence assembly also includes a rotating hole 43. The inner top of the swaying column 33 is fixedly installed with a second motor 40. The output end of the second motor 40 is fixedly installed with a drive rod 41. The top of the drive rod 41 extends through to the outer side of the top of the swaying column 33. Three rotating plates 42 are evenly installed at the top of the drive rod 41.

[0032] Each rotating plate 42 has several rotating holes 43. The rotating plate 42 moves above the top of the gas distribution ring 34. Several spiral turbulence rings 44 are fixedly installed on the top of each rotating plate 42.

[0033] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7After the exhaust gas is initially dispersed by the shaking dispersion component, it continues to rise. At this time, the rotating turbulence component starts to work. A second motor 40 is fixedly installed on the inner top of the shaking column 33. The second motor 40 operates independently of the first motor 23, so that the ring-shaped swaying motion and the rotational turbulence motion can be controlled separately and do not interfere with each other. A drive rod 41 is fixedly installed at the output end of the second motor 40. The top of the drive rod 41 extends through to the outer side of the top of the shaking column 33. Three rotating plates 42 are evenly installed on the top of the drive rod 41. When the second motor 40 is started, the drive rod 41 drives the three rotating plates 42 to rotate continuously around the central axis of the gas distribution ring 34. The rotating plates 42 move above the top of the gas distribution ring 34 and directly cut and stir the rising airflow.

[0034] Each rotating plate 42 has several rotating holes 43. During the rotation of the rotating plate 42, part of the rising exhaust gas passes through the rotating holes 43, while the other part passes around the edge of the rotating plate 42. This rotating cutting method, which alternates between through holes and solid plates, allows the airflow, which was originally mainly axially rising, to obtain radial and circumferential velocity components. The airflow is forced to redistribute on the tower cross section, effectively breaking up local concentration patches and velocity stratification, promoting the mixing of gases at different radial positions, and making the velocity field and concentration field tend to be uniform.

[0035] Several spiral turbulence rings 44 are fixedly installed on the top of each rotating plate 42. The spiral turbulence rings 44 rotate together with the rotating plate 42, and apply continuous spiral agitation to the airflow passing through the rotating hole 43 and around the edge of the rotating plate 42. The rotation of the spiral turbulence rings 44 gives the exhaust gas a strong rotational motion component, forming a controllable micro swirling flow field below the packing disk 60. The subtle pulsations and concentration differences that originally remained in the airflow are further broken up and homogenized. Gases at different radial positions are fully exchanged in the spiral path, and finally a highly uniform velocity field and concentration field are formed.

[0036] The rotating turbulence component is driven independently by the second motor 40, and its combined swaying motion with the rocking column 33 does not interfere with each other. The two achieve a gradient superposition of large-scale swaying mixing and small-scale rotating micro-mixing on the same central axis. After being cut and disturbed by the rotating plate 42 and spirally mixed by the spiral turbulence ring 44, the exhaust gas has the characteristics of small velocity deviation and relatively uniform concentration across the entire cross-section before entering the packing disk 60. This helps to make full use of the entire cross-section of the packing disk 60 for mass transfer, improve the packing utilization rate and the overall desulfurization efficiency of the absorption tower 20.

[0037] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Figure 9 and Figure 10A spray frame 56 is installed above the packing disc 60. The spray frame 56 is composed of multiple arc-shaped spray seats 57 of different sizes. A torsion covering assembly is installed inside the absorption tower 20 to drive the spray frame 56 to swing and twist above the packing disc 60. This causes the absorbent sprayed by each arc-shaped spray seat 57 to form multiple sets of dynamically changing wave-shaped liquid curtains above the packing disc 60, covering different radial areas of the packing disc 60. The torsion covering assembly includes a connecting rod 51 and a rotating disk 54. The top of the skid-mounted base 10 is equipped with a deep gas-permeable device. The membrane module 18 for fine removal and the torsion cover module also include a third motor 26. A motor cover 25 is fixedly installed on the top outer side of the absorption tower 20. The third motor 26 is fixedly installed inside the motor cover 25. A support plate 50 is fixedly installed on the inner wall of the absorption tower 20. A connecting rod 51 is movably connected to the support plate 50. An L-shaped torsion rod 52 is fixedly installed at the top of the connecting rod 51. A T-shaped drive rod 53 is movably connected to the top of the L-shaped torsion rod 52. A rotating disk 54 is fixedly installed at the output end of the third motor 26 through a rotating shaft. The rotating disk 54 moves inside the absorption tower 20.

[0038] The rotating disk 54 has an arc-shaped drive groove 55, which matches the size of the T-shaped drive rod 53. The T-shaped drive rod 53 moves within the arc-shaped drive groove 55. A spray frame 56 is fixedly installed on the top of the connecting rotating rod 51. The spray frame 56 is located below the L-shaped torsion rod 52. Several spray heads 58 are fixedly installed on the bottom of the arc-shaped spray seat 57. The spray frame 56 swings around the connecting rotating rod 51 inside the absorption tower 20.

[0039] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Figure 9 and Figure 10 A motor cover 25 is fixedly installed on the outer side of the top of the absorption tower 20. A third motor 26 is fixedly installed inside the motor cover 25. After the third motor 26 is started, its output end drives the rotating disk 54 to rotate continuously around the inside of the absorption tower 20 through the rotating shaft. An arc-shaped drive groove 55 is opened on the rotating disk 54. The extension trajectory of the arc-shaped drive groove 55 does not coincide with the concentric circle trajectory of the rotating disk 54. The T-shaped drive rod 53 moves through the arc-shaped drive groove 55. When the rotating disk 54 rotates continuously around the top, the groove wall of the arc-shaped drive groove 55 pushes the T-shaped drive rod 53 to slide relatively in the groove, converting the continuous rotational motion of the rotating disk 54 into the reciprocating swing motion of the T-shaped drive rod 53. The transmission process is stable and reliable, the structure is compact, and it is suitable for long-term operation in the limited space of the skid-mounted device.

[0040] The T-shaped drive rod 53 is sleeved at the end of the horizontal arm of the L-shaped torsion rod 52. The L-shaped torsion rod 52 is fixedly installed at the top of the connecting rod 51. A support plate 50 is fixedly installed on the inner wall of the absorption tower 20. The support plate 50 is movably connected to the connecting rod 51, providing stable rotational support for the connecting rod 51. When the T-shaped drive rod 53 swings back and forth, it transmits this swinging motion to the L-shaped torsion rod 52. The L-shaped torsion rod 52 then drives the connecting rod 51 to swing back and forth around its own axis. This transmission chain reliably and stably converts the continuous rotation output by the third motor 26 into the reciprocating torsion of the connecting rod 51. The motion transmission path is concise, reducing the accumulation of gaps and motion lag caused by multi-stage transmission.

[0041] A spray frame 56 is fixedly installed on the top of the connecting rod 51. The spray frame 56 is located below the L-shaped torsion rod 52. The spray frame 56 is composed of multiple arc-shaped spray seats 57 of different sizes. Several spray heads 58 are fixedly installed at the bottom of each arc-shaped spray seat 57. When the connecting rod 51 reciprocates, the spray frame 56 swings and twists around the connecting rod 51 inside the absorption tower 20. The absorbent sprayed by each arc-shaped spray seat 57 through the spray head 58 forms multiple sets of wave-shaped liquid curtains that dynamically change with the swing of the spray frame 56 under the swinging and twisting action of the spray frame 56. The coverage area of ​​the liquid curtain dynamically sweeps different radial areas of the packing disk 60 as the swing angle of the spray frame 56 changes, effectively reducing the spray blind area and edge weak liquid area that are easily generated by the constant spray range of traditional fixed spray devices.

[0042] Each arc-shaped spray seat 57 has a different size and radial position, and the coverage of their sprayed liquid curtains complements and overlaps each other. The wavy liquid curtain continuously sweeps across different radial areas on the surface of the packing disc 60, ensuring that the absorbent is evenly distributed across the entire upper surface of the packing disc 60, so that all packing particles can be fully wetted by the liquid film, providing a large effective mass transfer area for gas-liquid contact. In addition, the swinging and twisting of the spray frame 56 and the staggered stirring component at the bottom of the connecting rod 51 are rigidly linked by the same connecting rod 51. The spraying action and the packing stirring action are naturally synchronized, and the coordinated movement of the liquid and solid phases can be achieved without additional control structures, which helps to further improve the overall mass transfer efficiency of the absorption tower 20.

[0043] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Figure 9 and Figure 10The bottom of the connecting rod 51 extends through into the interior of the filling disk 60. A cross-mixing assembly is provided at the bottom of the connecting rod 51 for multi-dimensional cross-mixing of the particles filled inside the filling disk 60. The cross-mixing assembly includes an incomplete gear 63, a swing rod 67, and a cross rod 65. When the connecting rod 51 drives the swing rod 67 to swing inside the filling disk 60, it simultaneously drives the cross rod 65 to cross-push between the filling particles. The cross-mixing assembly also includes a limiting base plate 61. The limiting base plate 61 is fixedly installed on the inner wall of the filling disk 60. A moving column 62 is slidably sleeved between the limiting base plates 61. An incomplete gear 63 is fixedly installed at the bottom end of the connecting rod 51. Several rack blocks 64 are fixedly installed on the moving column 62. The incomplete gear 63 and the rack blocks 64 are meshed.

[0044] Several staggered rods 65 are fixedly installed at both ends of the moving column 62 on the side away from the limiting base plate 61. Several inclined rods 66 are fixedly installed on each staggered rod 65. The inclined rods 66 disturb the filling particles inside the stuffing disc 60. A swing rod 67 is fixedly installed at the bottom of the connecting rotating rod 51. Several arc-shaped swing rings 68 are evenly installed on the swing rod 67. The swing rod 67 and the arc-shaped swing rings 68 move inside the stuffing disc 60.

[0045] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Figure 9 and Figure 10 While the torsion cover assembly drives the connecting rod 51 to reciprocate torsional motion, the bottom end of the connecting rod 51 extends into the stuffing disc 60, driving the interleaved mixing assembly to work synchronously. A limiting base plate 61 is fixedly installed on the inner wall of the stuffing disc 60, and a moving column 62 is slidably sleeved between the limiting base plates 61. The moving column 62 can reciprocate linearly along the limiting base plates 61. An incomplete gear 63 is fixedly installed at the bottom end of the connecting rod 51, and several rack blocks 64 are fixedly installed on the moving column 62. 3. The transmission meshes with the rack block 64; when the connecting rod 51 reciprocates, the incomplete gear 63 reciprocates and enters the meshing transmission state with the rack block 64, driving the moving column 62 to perform intermittent reciprocating linear motion between the limiting base plates 61; this intermittent driving mode causes the moving column 62 to generate pulse-type agitation on the particle packing in the packing disc 60. The agitation action has the characteristics of pulse, which makes the disturbance to the packing particles more intense, effectively breaking the adhesion and bridging tendency formed between particles due to long-term stillness.

[0046] Several staggered rods 65 are fixedly installed at both ends of the moving column 62 on the side away from the limiting base plate 61, and several inclined rods 66 are fixedly installed on each staggered rod 65. When the moving column 62 moves in a reciprocating linear motion, it drives the staggered rods 65 and inclined rods 66 to push and pull and stir between the packing particles. The inclined rods 66 apply multi-directional pushing force to the packing particles at an inclined angle, so that the particles not only move along the movement direction of the moving column 62, but also generate lateral displacement, forming a crisscrossing particle flow pattern. The stirring range covers a wider area inside the packing disc 60, reducing the stirring blind zone and particle directional accumulation phenomenon that are easy to be generated by unidirectional stirring.

[0047] Meanwhile, a swing rod 67 is fixedly installed at the bottom of the connecting rod 51. Several arc-shaped swing rings 68 are evenly installed on the swing rod 67. The swing rod 67 and the arc-shaped swing rings 68 move inside the packing disc 60. The reciprocating torsional motion of the connecting rod 51 directly drives the swing rod 67 and the arc-shaped swing rings 68 to make reciprocating circular arc swings inside the packing disc 60. The arc-shaped swing rings 68 move the packing particles in an arc trajectory. The stirring range covers the circumferential area of ​​the packing disc 60 along the arc path, which complements the linear reciprocating motion of the staggered rod 65 in terms of motion direction and stirring trajectory.

[0048] The staggered mixing assembly utilizes the linear reciprocating motion of the staggered rod 65 generated by the meshing of the incomplete gear 63 and the rack block 64, as well as the reciprocating circular arc oscillation of the swing rod 67 and the arc-shaped swing ring 68. These two different motion directions and forms of agitation occur simultaneously inside the packing disc 60, forming a multi-dimensional cross-mixing of the packing particles. This composite agitation method effectively prevents the packing particles from caking, channeling, and local blockage due to long-term operation, keeping the packing bed in a loose and permeable state. At the same time, it promotes the continuous tearing and renewal of the liquid film of the absorbent on the surface of the packing particles, ensuring a continuous gas-liquid-solid three-phase contact interface. The system remains active. Furthermore, the oscillation and torsion of the staggered mixing assembly and the upper spray frame 56 are driven by the same connecting rod 51, ensuring that the stirring and spraying movements are synchronized. When the spray liquid curtain sweeps across a certain area, the packing particles below that area are turned over by the staggered rod 65 or the arc-shaped oscillating ring 68. The absorbent liquid is directly sprayed onto the freshly exposed particle surface and spreads into a film. The old liquid film is promptly drained away and replaced, effectively reducing the phenomenon of poor wetting caused by the particles remaining still while the liquid curtain sweeps across, or misalignment caused by the particles turning over but no new liquid being supplied. This makes the gas-liquid-solid three-phase contact more sufficient and improves the overall mass transfer efficiency of the absorption tower 20.

[0049] Working principle: After the sulfur-containing flash vapor is discharged from the flash tank 14, it passes through the inlet separator 11, the primary separator 12 and the secondary separator 13 in sequence for three-stage separation, which removes the free liquid droplets and solid particles entrained in the gas step by step. Then, it enters the absorption tower 20 from the gas phase inlet 15 at the bottom of the absorption tower. The gas is directly introduced into the gas distribution ring 34 that is movable at the bottom of the absorption tower 20 through the gas phase inlet 15, which avoids the formation of local jets or deflection of gas at the bottom of the tower.

[0050] Multiple cross-shaped distribution pipes 36 are fixedly installed inside the gas distribution ring 34. After the gas entering the gas distribution ring 34 is collected and pressure equalized in the ring cavity, it is evenly discharged outward through several distribution holes 37 opened on the distribution pipes 36, completing the primary dispersion of the gas and dividing the exhaust gas from the concentrated stream into multiple fine airflows.

[0051] At this time, the shaking dispersion component starts to work, and the first motor 23, which is fixedly installed inside the motor base 22, starts. The output end of the first motor 23 drives the arc-shaped drive arm 24 to rotate. The arc-shaped drive arm 24 moves on the top outer side of the motor base 22, and its top end is connected to the bottom end of the shaking column 33. Therefore, the rotational motion of the arc-shaped drive arm 24 is converted into the circumferential translation of the bottom end of the shaking column 33. At the same time, the middle part of the shaking column 33 passes through the through hole of the shaking ring 30 and is movably connected to the shaking ring 30 through the second rotating shaft 32. The shaking ring 30 itself is movably connected to the fixed base plate 21 through the first rotating shaft 31, and the axis of the first rotating shaft 31 is perpendicular to the axis of the second rotating shaft 32. This makes it possible for the bottom end of the shaking column 33 to move in a circular motion driven by the arc-shaped drive arm 24, while the upper end of the shaking column 33 achieves a compound swinging motion under the constraint of the shaking ring 30 and the two intersecting rotating shafts, with a rich and varied motion trajectory.

[0052] A connecting plate 35 is fixedly installed at the end of the swaying column 33 away from the arc-shaped drive arm 24. The gas distribution ring 34 is fixedly installed on the connecting plate 35, and the swaying column 33 is located at the bottom center of the gas distribution ring 34. When the swaying column 33 performs a compound swaying motion, the connecting plate 35 synchronously drives the entire gas distribution ring 34 to perform a circular swaying motion. The circular swaying motion causes the orientation of the distribution holes 37 to change in real time. The multiple streams of gas discharged from the distribution holes 37 no longer rise in a fixed direction, but are continuously disrupted, mixed and redistributed on the cross section of the absorption tower 20. This effectively avoids the formation of short circuits or channeling in the gas flow inside the tower, and greatly improves the uniformity of the velocity distribution and concentration distribution of the gas before entering the packing disk 60, creating ideal inflow conditions for subsequent gas-liquid contact.

[0053] The exhaust gas, after being discharged through the distribution holes 37 of the gas distribution ring 34 and further dispersed by the annular swaying motion, continues to rise. Before entering the packing disc 60, it is subjected to secondary rotational disturbance by the rotating turbulence assembly to further eliminate residual airflow unevenness.

[0054] Specifically, a second motor 40 is fixedly installed on the inner top of the rocking column 33. The second motor 40 operates independently of the first motor 23, so that the ring-shaped rocking motion and the rotational disturbance motion can be controlled separately and do not interfere with each other. A drive rod 41 is fixedly installed at the output end of the second motor 40. The top of the drive rod 41 extends through to the outer side of the top of the rocking column 33. Three rotating plates 42 are evenly installed on the top of the drive rod 41. When the second motor 40 is started, the drive rod 41 drives the three rotating plates 42 to rotate around the central axis of the gas distribution ring 34. Each rotating plate 42 has several rotating holes 43. During the rotation of the rotating plate 42, some exhaust gas is allowed to pass through the rotating holes 43. When the rotating plate 42 rotates, it cuts and stirs the rising airflow, causing the airflow to generate radial and circumferential velocity components.

[0055] In addition, several spiral turbulence rings 44 are fixedly installed on the top of each rotating plate 42. The spiral turbulence rings 44 rotate together with the rotating plate 42, and apply continuous spiral agitation to the airflow passing through the rotating hole 43 and around the edge of the rotating plate 42. The rotation of the spiral turbulence rings 44 gives the exhaust gas, which was originally mainly axially rising, a strong rotational motion component. The airflow forms a controllable micro-vortex on the cross section of the tower, which promotes the mixing of gases at different radial positions. After this disturbance, the exhaust gas forms a highly uniform velocity field and concentration field before entering the packing disk 60, thereby making full use of the entire cross section of the packing disk 60 for mass transfer and avoiding the decrease in packing utilization rate caused by local flow deviation.

[0056] During the operation of the absorption tower 20, the absorbent liquid in the packing disc 60 will converge towards the bottom of the tower under the action of gravity. Some absorbent liquid may flow down along the outer wall of the swaying column 33 or splash to the top area of ​​the swaying column 33. To ensure the long-term stable operation of the drive components in a liquid-containing environment, the swaying column 33 adopts a fully enclosed structure design. The second motor 40, which is fixedly installed at the top inside, is covered and isolated by the shell of the swaying column 33. External absorbent liquid cannot penetrate into the motor, so that the second motor 40 operates independently of the first motor 23 and is not affected by the liquid flow. The annular swaying motion and the rotational disturbance motion can be controlled separately and do not interfere with each other. A drive rod 41 is fixedly installed at the output end of the second motor 40 to drive... The top of the rotating rod 41 extends through the sealing sleeve at the top of the rocking column 33 and then to the outer side of the top of the rocking column 33. The sealing sleeve ensures that the driving rotating rod 41 can rotate flexibly while preventing liquid from seeping down along the gap of the rotating rod. Three rotating plates 42 are evenly installed at the top of the driving rotating rod 41. When the second motor 40 is started, the driving rotating rod 41 drives the three rotating plates 42 to rotate around the central axis of the gas distribution ring 34. Each rotating plate 42 has several rotating holes 43. During the rotation of the rotating plate 42, some exhaust gas is allowed to pass through the rotating holes 43. When the rotating plate 42 rotates, it cuts and stirs the rising airflow, causing the airflow to generate radial and circumferential velocity components. In addition, several spiral turbulence rings 44 are fixedly installed on the top of each rotating plate 42. The spiral turbulence rings 44 rotate together with the rotating plate 42, and apply continuous spiral agitation to the airflow passing through the rotating hole 43 and around the edge of the rotating plate 42. The rotation of the spiral turbulence rings 44 gives the exhaust gas, which was originally mainly axially rising, a rotational motion component. The airflow forms a controllable micro-vortex on the cross section of the tower, which promotes the mixing of gases at different radial positions. After this disturbance, the exhaust gas has formed a uniform velocity field and concentration field before entering the packing disk 60, thereby making full use of the entire cross section of the packing disk 60 for mass transfer and avoiding the decrease in packing utilization rate caused by local flow deviation. The absorbent that gathers at the bottom of the shaking column 33 is discharged in time through the bottom drain port of the tower, without forming liquid accumulation. It will not hinder the compound swaying motion of the shaking column 33 and the independent rotation of the rotating plate 42, ensuring that all moving components always operate smoothly under low liquid level interference conditions.

[0057] After passing through the rotating turbulence assembly, the exhaust gas enters the stuffing disk 60 and undergoes a gas-liquid contact reaction with the particles filled inside the stuffing disk 60. At the same time, the spray rack 56 above the stuffing disk 60 sprays absorbent liquid onto the surface of the stuffing disk 60 to form a liquid film covering the entire surface of the stuffing disk 60.

[0058] A motor cover 25 is fixedly installed on the outer side of the top of the absorption tower 20, and a third motor 26 is fixedly installed inside the motor cover 25. After the third motor 26 is started, its output end transmits power to the rotating disk 54 through the rotating shaft to make it rotate continuously for a full circle. An arc-shaped drive groove 55 is opened on the rotating disk 54, and the extension trajectory of the arc-shaped drive groove 55 does not coincide with the concentric circle trajectory of the rotating disk 54. A T-shaped drive rod 53 moves through the arc-shaped drive groove 55. When the rotating disk 54 rotates continuously for a full circle, the groove wall of the arc-shaped drive groove 55 pushes the T-shaped drive rod 53 to slide relatively in the groove, converting the continuous rotational motion of the rotating disk 54 into the reciprocating swing motion of the T-shaped drive rod 53.

[0059] The T-shaped drive rod 53 is sleeved at the end of the horizontal arm of the L-shaped torsion rod 52, which is fixedly installed at the top of the connecting rod 51. When the T-shaped drive rod 53 swings back and forth, it transmits this swinging motion to the L-shaped torsion rod 52, which in turn drives the connecting rod 51 to swing back and forth around its own axis. The transmission chain has a compact structure and reliably converts the continuous rotational motion output by the third motor 26 into the reciprocating torsion of the connecting rod 51, resulting in a smooth driving process.

[0060] A spray frame 56 is fixedly installed on the top of the connecting rod 51, and the spray frame 56 is located below the L-shaped torsion rod 52. The spray frame 56 is composed of multiple arc-shaped spray seats 57 of different sizes, and several spray heads 58 are fixedly installed at the bottom of each arc-shaped spray seat 57. When the connecting rod 51 reciprocates, the spray frame 56 swings and twists around the connecting rod 51 inside the absorption tower 20. The absorbent liquid sprayed by the spray heads 58 from each arc-shaped spray seat 57 is oscillated and twisted by the spray frame 56. Under the action of dynamic torsion, multiple sets of wave-shaped liquid curtains are formed that change dynamically with the swing of the spray frame 56. Since the sizes and radial positions of each arc-shaped spray seat 57 are different, the coverage of their sprayed liquid curtains complement and overlap each other. The wave-shaped liquid curtains continuously sweep across different radial areas on the surface of the packing disc 60, effectively eliminating the spray blind spots that are easy to occur in traditional fixed spray devices, ensuring that the absorbent liquid is evenly distributed on the entire upper surface of the packing disc 60, so that all packing particles can be fully wetted by the liquid film, maximizing the gas-liquid contact area.

[0061] While the connecting rod 51 is reciprocating and twisting, the part of its bottom end extending into the stuffing disc 60 drives the interleaved mixing component to work. Since the swinging and twisting of the spray frame 56 and the agitation of the interleaved mixing component are both driven by the same connecting rod 51, the two naturally maintain synchronous motion, and the coordinated operation of spraying and agitation can be achieved without additional control structure.

[0062] A limiting base plate 61 is fixedly installed on the inner wall of the stuffing disc 60. A moving column 62 is slidably sleeved between the limiting base plates 61. The moving column 62 can reciprocate linearly along the limiting base plates 61. An incomplete gear 63 is fixedly installed at the bottom end of the connecting rod 51. Several rack blocks 64 are fixedly installed on the moving column 62. The incomplete gear 63 and the rack blocks 64 are meshed. When the connecting rod 51 reciprocates, the incomplete gear 63 reciprocates accordingly. The incomplete gear 63 and the rack blocks 64 enter a meshing transmission state, driving the moving column 62 to perform intermittent reciprocating linear motion between the limiting base plates 61. The intermittent driving mode causes the moving column 62 to agitate the granular packing in the stuffing disc 60. The agitation action has the characteristics of pulse, which makes the disturbance to the packing particles more intense.

[0063] Several staggered rods 65 are fixedly installed at both ends of the moving column 62 on the side away from the limiting base plate 61, and several inclined rods 66 are fixedly installed on each staggered rod 65. When the moving column 62 makes reciprocating linear motion, it drives the staggered rods 65 and the inclined rods 66 to push and pull and stir between the packing particles. The inclined rods 66 apply multi-directional pushing force to the packing particles at an inclined angle, so that the particles not only move along the movement direction of the moving column 62, but also generate lateral displacement, forming a crisscrossing particle flow pattern.

[0064] Meanwhile, a swing rod 67 is fixedly installed at the bottom of the connecting rod 51, and several arc-shaped swing rings 68 are evenly installed on the swing rod 67; the reciprocating torsional motion of the connecting rod 51 directly drives the swing rod 67 and the arc-shaped swing rings 68 to reciprocate inside the packing disc 60, and the arc-shaped swing rings 68 move the packing particles in an arc-shaped trajectory, and the stirring range covers the circumferential area of ​​the packing disc 60 along the arc path.

[0065] The linear reciprocating motion of the staggered rod 65 generated by the meshing of the incomplete gear 63 and the rack block 64, and the reciprocating oscillating motion of the swing rod 67 and the arc-shaped swing ring 68, two different motion directions and different motion forms of agitation are carried out simultaneously inside the packing disk 60, forming a multi-dimensional cross-mixing of the packing particles. This composite agitation method can effectively prevent the packing particles from caking, channeling and local blockage due to long-term static state, so that the packing bed is always in a loose and breathable state. At the same time, the liquid film of the absorbent on the surface of the packing particles is constantly renewed, and the gas-liquid-solid three-phase contact is more sufficient, which significantly improves the overall mass transfer efficiency of the absorption tower 20.

[0066] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Those skilled in the art can make various changes within their knowledge without departing from the spirit of the present invention.

Claims

1. A skid-mounted multi-stage purification device for high-sulfur flash vapor, comprising a skid-mounted base (10), wherein an inlet separator (11), a primary separator (12), a secondary separator (13), and an absorption tower (20) are disposed on the top of the skid-mounted base (10), characterized in that, The bottom of the absorption tower (20) is movably provided with a gas distribution ring (34) for introducing waste gas. A packing disc (60) is fixedly installed inside the absorption tower (20) above the gas distribution ring (34). A shaking dispersion component is provided inside the absorption tower (20) to drive the gas distribution ring (34) to make a circular swaying motion, thereby disrupting the airflow direction from the source. The shaking dispersion component includes a fixed base plate (21), a shaking ring (30), and a shaking column (33). The swaying column (33) is equipped with a rotating turbulence assembly, which is used to rotate and turbulent the rising exhaust gas after the gas distribution ring (34) has been initially dispersed, forming a uniform velocity field and concentration field below the packing disk (60). The rotating turbulence assembly includes a rotating plate (42) and a spiral turbulence ring (44). When the swaying column (33) drives the gas distribution ring (34) to sway, the rotating plate (42) rotates around the central axis of the gas distribution ring (34). A spray frame (56) is provided above the packing disc (60). The spray frame (56) is composed of multiple arc-shaped spray seats (57) of different sizes. A torsion covering assembly is provided inside the absorption tower (20) to drive the spray frame (56) to swing and twist above the packing disc (60). This causes the absorbent sprayed by each arc-shaped spray seat (57) to form multiple sets of wave-shaped liquid curtains that dynamically change with the swing of the spray frame (56) above the packing disc (60) to cover different radial areas of the packing disc (60). The torsion covering assembly includes a connecting rod (51) and a rotating disc (54). The bottom of the connecting rod (51) extends through into the interior of the packing disc (60). The bottom of the connecting rod (51) is provided with a cross-mixing assembly for multi-dimensional cross-mixing of the particles filled inside the packing disc (60). The cross-mixing assembly includes an incomplete gear (63), a swing rod (67), and a cross rod (65). When the connecting rod (51) drives the swing rod (67) to swing inside the packing disc (60), it simultaneously drives the cross rod (65) to cross-poke between the packing particles.

2. The skid-mounted multi-stage purification device for high-sulfur flash vapor according to claim 1, characterized in that, A flash tank (14) is installed on the top of the skid-mounted base (10). The gas phase outlet of the flash tank (14) is connected to the inlet of the inlet separator (11). The inlet separator (11), the primary separator (12), and the secondary separator (13) are connected in series. The outlet of the secondary separator (13) is connected to the gas phase inlet (15) at the bottom of the absorption tower (20), so that the sulfur-containing flash vapor discharged from the flash tank (14) enters the absorption tower (20) after three-stage separation. The shaking dispersion component also Including the motor base (22), the inner wall of the absorption tower (20) is fixedly installed with a fixed base plate (21) at the gas phase inlet (15). The top of the fixed base plate (21) is movably connected to a rocking ring (30) through a first rotating shaft (31). The rocking ring (30) is movably connected to a rocking column (33) through a second rotating shaft (32) in the through hole of the rocking ring (30). The axis of the first rotating shaft (31) and the axis of the second rotating shaft (32) are intersected and perpendicular to each other so that the rocking column (33) can realize a compound rocking motion. A motor base (22) is fixedly installed at the top center of the fixed base plate (21). A first motor (23) is fixedly installed inside the motor base (22). The output end of the first motor (23) passes through the motor base (22) and is connected to an arc-shaped drive arm (24).

3. The skid-mounted multi-stage purification device for high-sulfur flash vapor according to claim 2, characterized in that, The arc-shaped drive arm (24) is movable on the top outside of the motor base (22). The bottom end of the rocking column (33) is connected to the top of the arc-shaped drive arm (24). A connecting plate (35) is fixedly installed on the end of the rocking column (33) away from the arc-shaped drive arm (24). The gas distribution ring (34) is fixedly installed on the connecting plate (35). The rocking column (33) is located at the bottom center of the gas distribution ring (34). The gas distribution ring (34) has multiple cross-shaped distribution pipes (36) fixedly installed inside, and each distribution pipe (36) has several distribution holes (37) on the side away from the rocking column (33). The distribution holes (37) are used to discharge the exhaust gas.

4. The skid-mounted multi-stage purification device for high-sulfur flash vapor according to claim 1, characterized in that, The top of the skid-mounted base (10) is also equipped with a control cabinet (16), which is responsible for monitoring the operating pressure, flow rate and temperature of the entire line, and automatically controlling the start, stop and switch of the water pump and valve. The top of the skid-mounted base (10) is also fixedly installed with a booster pump (17) for pressurizing gas delivery. The rotating turbulence assembly also includes a rotating hole (43). The inner top of the rocking column (33) is fixedly installed with a second motor (40). The output end of the second motor (40) is fixedly installed with a drive rod (41). The top of the drive rod (41) extends through to the outer side of the top of the rocking column (33). Three rotating plates (42) are evenly installed at the top of the drive rod (41).

5. A skid-mounted multi-stage purification device for high-sulfur flash vapor according to claim 4, characterized in that, The rotating plate (42) is provided with several rotating holes (43). The rotating plate (42) moves above the top of the gas distribution ring (34). Several spiral turbulence rings (44) are fixedly installed on the top of each rotating plate (42).

6. The skid-mounted multi-stage purification device for high-sulfur flash vapor according to claim 1, characterized in that, The top of the skid-mounted base (10) is provided with a membrane assembly (18) for deep gas removal. The torsion cover assembly also includes a third motor (26). A motor cover (25) is fixedly installed on the outer side of the top of the absorption tower (20). The third motor (26) is fixedly installed inside the motor cover (25). A support plate (50) is fixedly installed on the inner wall of the absorption tower (20). A connecting rod (51) is movably connected to the support plate (50). An L-shaped torsion rod (52) is fixedly installed at the top of the connecting rod (51). The top of the L-shaped torsion bar (52) is movably connected to the T-shaped drive bar (53), and the output end of the third motor (26) is fixedly mounted with a rotating disk (54) through a rotating shaft. The rotating disk (54) moves inside the absorption tower (20).

7. A skid-mounted multi-stage purification device for high-sulfur flash vapor according to claim 6, characterized in that, The rotating disk (54) has an arc-shaped drive groove (55), which is matched in size with the T-shaped drive rod (53). The T-shaped drive rod (53) moves in the arc-shaped drive groove (55). A spray frame (56) is fixedly installed on the top of the connecting rotating rod (51). The spray frame (56) is located below the L-shaped torsion rod (52). Several spray heads (58) are fixedly installed on the bottom of the arc-shaped spray seat (57). The spray frame (56) swings inside the absorption tower (20) with the connecting rotating rod (51) as the center.

8. A skid-mounted multi-stage purification device for high-sulfur flash vapor according to claim 1, characterized in that, The staggered mixing assembly also includes a limiting base plate (61), the limiting base plate (61) is fixedly installed on the inner wall of the filling disc (60), a moving column (62) is slidably sleeved between the limiting base plates (61), an incomplete gear (63) is fixedly installed at the bottom end of the connecting rod (51), and several rack blocks (64) are fixedly installed on the moving column (62), and the incomplete gear (63) and the rack blocks (64) are engaged in transmission.

9. A skid-mounted multi-stage purification device for high-sulfur flash vapor according to claim 8, characterized in that, Several staggered rods (65) are fixedly installed at both ends of the moving column (62) on the side away from the limiting base plate (61). Several inclined rods (66) are fixedly installed on each staggered rod (65). The inclined rods (66) disturb the filling particles inside the stuffing disc (60). A swing rod (67) is fixedly installed at the bottom of the connecting rotating rod (51). Several arc-shaped swing rings (68) are evenly installed on the swing rod (67). The swing rod (67) and the arc-shaped swing rings (68) move inside the stuffing disc (60).

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