Flushing equipment for expanded part of sulfur channel at top of desulfurization regeneration tower

Abstract

The invention relates to the technical field of regeneration tower cleaning, in particular to desulfurization regeneration tower top expanded part sulfur channel flushing equipment which comprises a rotating body matched with a sulfur channel in an external regeneration tower and a plurality of spraying units arranged on the rotating body. The rotating body can rotate and drive the spraying unit to move along the track of the sulfur channel, and the spraying unit is used for spraying flushing fluid into the sulfur channel. By means of the sulfur foam flushing device, the working defects of fixed-position flushing, passive flushing and the like in a traditional sulfur foam flushing mode are effectively overcome, sulfur foam is pushed and gathered from the inner side wall of the sulfur channel to the bottom face in the sulfur channel on the vertical section of the sulfur channel through relative rotation of the two rotating sleeves on the spraying unit, and therefore the sulfur foam is prevented from being deposited and solidified on the inner wall of the sulfur channel; and in cooperation with circulating rotation of the spraying unit, the gathered sulfur foam is actively pushed and swept to the outlet position of the sulfur channel, and therefore dual active flushing operation is achieved, and the sulfur foam cleaning effect and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of regeneration tower cleaning technology, and more particularly to a flushing device for the sulfur channel in the enlarged section at the top of a desulfurization regeneration tower. Background Technology

[0002] In the wet desulfurization process, the desulfurization liquid after absorbing hydrogen sulfide (H2S) and hydrogen cyanide (HCN) is transported to the regeneration tower by a desulfurization liquid circulation pump. At the same time, compressed air is introduced from the bottom of the regeneration tower to cause the desulfurization liquid to undergo an oxidation regeneration reaction in the tower. The regenerated desulfurization liquid flows back to the desulfurization tower from the top of the tower through a level regulator for recycling. An enlarged section is usually set at the top of the regeneration tower, and a sulfur channel is set in the enlarged section. Sulfur foam generated by the introduction of air bubbles in the regeneration tower will rise to the enlarged section and flow into the sulfur channel by gravity, thereby achieving gas-liquid separation.

[0003] However, due to the high viscosity and poor fluidity of sulfur foam, it is difficult to achieve effective flow by relying solely on natural elevation differences. It tends to accumulate and settle in the enlarged sulfur channel, gradually solidifying into sulfur paste, which can lead to pipeline blockage and even cause "tower overflow" accidents.

[0004] To facilitate timely cleaning of sulfur foam, a flushing structure is needed for the sulfur channel. However, traditional flushing methods typically use fixed-position spraying, statically spraying the flushing liquid into the sulfur channel and relying on dilution to promote the flow of sulfur foam. This method has obvious drawbacks: the flushing process is passive, relying solely on the fluidity of the sulfur foam itself, resulting in low cleaning efficiency; the flushing liquid consumption is large, and the fixed spraying position cannot cover all areas prone to sulfur accumulation, leading to the risk of sulfur foam solidification in unflushed areas, making it difficult to achieve a continuous and uniform cleaning effect, and increasing the frequency of manual cleaning and safety maintenance costs. Summary of the Invention

[0005] This invention provides a sulfur flushing device for the enlarged section of the desulfurization regeneration tower top, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The sulfur channel flushing equipment for the enlarged section at the top of the desulfurization regeneration tower includes a rotating body that is configured to cooperate with the sulfur channel inside the external regeneration tower and several spraying units configured on the rotating body. The rotating body is capable of rotating and driving the spraying units to move along the sulfur channel trajectory. The spraying units are used to spray flushing liquid into the sulfur channel. The injection unit includes a delivery pipe, two branch pipes disposed on the delivery pipe, and a rotating sleeve rotatably disposed at the end of each branch pipe. The two rotating sleeves rotate in opposite directions, and the rotation trajectory of the rotating sleeves is coplanar with the axis of the sulfur channel. Several injection pipes are connected to the rotating sleeves.

[0007] Furthermore, the injection unit also includes a plurality of guide frames corresponding to each of the branch pipes, the shape of the guide frames corresponding to the shape of the sulfur channel, and the guide frames being fixed relative to the delivery pipe by a support frame; A plurality of movable platforms are provided within the guide frame, and the nozzle is correspondingly disposed on the movable platform. The movable platform moves along the shape trajectory of the guide frame via a sliding body. The nozzle is connected to the rotating sleeve via a flexible hose. The rotating sleeve drives the movable platform to move via a telescopic lever.

[0008] Furthermore, a sealing plate is provided at the end of the rotating sleeve, the hose passes through the sealing plate and communicates with the interior of the rotating sleeve, and a sealing body is provided inside the rotating sleeve for sealing a portion of the interior space of the rotating sleeve, the sealing body being fixed relative to the branch pipe.

[0009] Furthermore, the output end of the nozzle is a flat structure arranged at an angle.

[0010] Furthermore, the rotating body includes two coaxially arranged and relatively rotating rings. During the part of the process in which the conveying pipe follows the rotation of the rings, the conveying pipe is in working state and conveys the flushing liquid, and the movement area of ​​the conveying pipe in working state on the two rings covers the sulfur channel.

[0011] Furthermore, the rotating body also includes a support body; The ring body includes an annular groove and a sealing ring. The annular groove and the sealing ring form an annular chamber. The annular groove is rotatably disposed on the sealing ring. The sealing ring is fixed relative to the support body. The delivery pipe is installed on the annular groove and communicates with the annular chamber. A filling material is disposed in the annular groove to seal a portion of the annular chamber. A plurality of drive wheels are provided between the two annular grooves, and the drive wheels are rotatably mounted on the support body.

[0012] Furthermore, the filling body includes two partitions that divide the internal space of the annular cavity into a working area and an idle area. The support body is provided with a liquid supply tee and a gas supply tee. The two output ends of the liquid supply tee are respectively connected to the working areas of the two annular cavities, and the two output ends of the gas supply tee are respectively connected to the idle areas of the two annular cavities. The high-pressure gas in the idle area enters the working area through the gap between the partition and the inner wall of the annular cavity.

[0013] Furthermore, on the circle containing the annulus, one end of the two working areas overlaps, while the other end of the two working areas is staggered.

[0014] Furthermore, the idle area consists of a backflush area and a shielding area. The backflush area allows high-pressure gas to flow into the corresponding delivery pipe, and the shielding area is provided with a shield to block the delivery pipe. The shield is fixed relative to the sealing ring.

[0015] Furthermore, the separator includes a back plate fixed relative to the sealing ring, a movable plate disposed opposite to the back plate, and a sealing bladder located between the back plate and the movable plate, wherein the movable plate and the back plate are connected by a spring; An arc surface inclined toward the working area is provided at the edge of the sealing bladder.

[0016] The technical solution of this invention can achieve the following technical effects: This method effectively solves the drawbacks of traditional sulfur foam flushing methods, such as fixed-position flushing and passive flushing. By utilizing the relative rotation of two rotating sleeves on the spray unit, sulfur foam is pushed and accumulated from the inner wall of the sulfur channel to the bottom surface in the vertical section of the sulfur channel, thus preventing sulfur foam from depositing and solidifying on the inner wall of the sulfur channel. Combined with the cyclic rotation of the spray unit, the accumulated sulfur foam is actively pushed and swept towards the outlet position of the sulfur channel, thereby achieving a dual active flushing operation and improving the sulfur foam cleaning effect and efficiency. At the same time, by using the rotation of the rotating sleeves to drive the rotation of several nozzles on them, multiple flushing operations can be performed on any position in the sulfur channel, effectively improving the flushing effect.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the sulfur channel flushing equipment for the enlarged section at the top of the desulfurization regeneration tower; Figure 2 This is a schematic diagram of the regeneration tower. Figure 3 for Figure 2 Schematic diagram of cross-section structure; Figure 4 for Figure 1 Explosion structure diagram; Figure 5 for Figure 1 Schematic diagram of the middle injection unit; Figure 6 for Figure 5 A structural diagram from another perspective; Figure 7 for Figure 5 A schematic diagram of the structure of the guide frame; Figure 8 for Figure 5 Explosion-proof diagram of the rotating sleeve and its internal structure; Figure 9 for Figure 4 A schematic diagram of the central sealing ring from below; Figure 10 for Figure 9 Schematic diagram of the cross-sectional structure of the central partition; Attached reference numerals: 100, regeneration tower; 101, sulfur channel; 102, output pipeline; 200. Rotating body; 201. Ring body; 202. Ring groove; 203. Sealing ring; 204. Support body; 205. Drive wheel; 206. Separator; 207. Liquid supply tee; 208. Gas supply tee; 209. Baffle plate; 210. Back plate; 211. Sealing bladder; 212. Movable plate; 213. Spring; 214. Arc surface; 300. Injection unit; 301. Delivery pipe; 302. Branch pipe; 303. Rotating sleeve; 304. Spray nozzle; 305. Guide frame; 306. Support frame; 307. Moving platform; 308. Sliding body; 309. Hose; 310. Telescopic lever; 311. Sealing plate; 312. Sealing body. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] like Figures 1 to 6As shown, this application provides a sulfur channel flushing device for the enlarged part of the top of the desulfurization regeneration tower, including a rotating body 200 that is configured to cooperate with the sulfur channel 101 inside the external regeneration tower 100 and a plurality of spraying units 300 configured on the rotating body 200. The rotating body 200 can rotate and drive the spraying units 300 to move along the trajectory of the sulfur channel 101. The spraying units 300 are used to spray flushing liquid into the sulfur channel 101. The injection unit 300 includes a delivery pipe 301, two branch pipes 302 disposed on the delivery pipe 301, and a rotating sleeve 303 rotatably disposed at the end of each branch pipe 302. The two rotating sleeves 303 rotate in opposite directions, and the rotation trajectory of the rotating sleeves 303 is coplanar with the axis of the sulfur channel 101. Several spray pipes 304 are connected and disposed on the rotating sleeves 303.

[0023] Specifically, since the sulfur foam in the regeneration tower 100 generally floats above the liquid surface, as the amount of sulfur foam increases, when it rises above the outer edge of the sulfur channel 101 within the regeneration tower 100, the sulfur foam will naturally flow into the sulfur channel 101, such as... Figure 2 and Figure 3 As shown, sulfur foam entering the sulfur channel 101 can gather towards the output pipe 102 and be naturally discharged through the output pipe 102; the rotating body 200 is disposed above the sulfur channel 101 in the regeneration tower 100, and there are sufficient gaps between the rotating body 200 and the sulfur channel 101 to facilitate the entry of sulfur foam into the sulfur channel 101. The rotating body 200 can be rotatably disposed in the regeneration tower 100, and in order to facilitate the movement of the spraying unit 300 along the trajectory of the sulfur channel 101, the rotating body 200 is coaxially disposed with the sulfur channel 101; the spraying unit 300 is suspended inside or above the sulfur channel 101, as long as the flushing liquid sprayed by the spraying unit 300 can fall onto the inner wall of the sulfur channel 101.

[0024] It should be noted that when the cross-section of the sulfur channel 101 is square, the inner wall of the sulfur channel 101 includes the left and right side walls and the bottom surface of its cross-section, and the flushing liquid sprayed by the spraying unit 300 can fall completely onto these three inner walls of the sulfur channel 101; when the interface shape of the sulfur channel 101 is circular or other shapes, the spraying unit 300 also needs to adapt to the shape of the sulfur channel 101.

[0025] Taking a square cross-sectional shape for the sulfur channel 101 as an example, the two branch pipes 302 on the conveying pipe 301 can be arranged radially along the sulfur channel 101. Thus, the left branch pipe 302 corresponds to the left inner wall and the left side of the bottom surface of the sulfur channel 101, and the right branch pipe 302 corresponds to the right inner wall and the right side of the bottom surface of the sulfur channel 101. This divides the internal space of the sulfur channel 101 into an inner circle and an outer circle radially, with the two branch pipes 302 corresponding to the inner and outer circles respectively. Due to the rotating sleeve 303 and its several nozzles 30... 4. It can rotate on the branch pipe 302, and the movement trajectory of the rotating sleeve 303 is coplanar with the axis of the sulfur channel 101. Therefore, several nozzles 304 can move in a scanning manner along the trajectory of the sulfur channel 101. The movement power of the two rotating sleeves 303 can be supplied by two separately set motors, or the two rotating sleeves 303 can be driven by the teeth on their outer walls, and then a motor can be used to provide power for the rotating sleeves 303. Alternatively, a transmission structure can be used to provide power for the rotation of the rotating sleeves 303 by using the relative movement of the rotating body 200 and the regeneration tower 100.

[0026] In use, the rotating body 200 rotates on its own axis and drives several spraying units 300 to move synchronously. Two rotating sleeves 303 within each spraying unit 300 move synchronously in opposite directions, driving several nozzles 304 on them to rotate. The nozzles 304 move along the axis of the rotating body 200 and rotate along the axis of the rotating sleeve 303. The delivery pipe 301 sprays the cleaning fluid into the sulfur channel 101 through the branch pipe 302, the rotating sleeves 303, and the nozzles 304. Because the two rotating sleeves 303 move synchronously in opposite directions, when a nozzle 304 on one rotating sleeve 303 moves away from the other, the flushing fluid sprayed from that nozzle 304 flushes the corresponding sidewall of the sulfur channel 101. At this time, the nozzle 304 moves downwards, thus facilitating the flushing of the sulfur channel 101. Sulfur foam on the inner wall is flushed downwards into the sulfur channel 101. When the nozzle 304 moves to the bottom of the rotating sleeve 303, the flushing liquid sprayed from the nozzle 304 will flush the corresponding area on the bottom of the sulfur channel 101. In this way, as the rotating sleeve 303 rotates, the nozzles 304 on the rotating sleeve 303 can cyclically perform multiple flushing operations on any position of the inner wall of the sulfur channel 101. This mode can effectively improve the flushing effect. At the same time, the relative movement of the nozzles 304 on the two rotating sleeves 303 can actively push the sulfur foam on the inner wall of the sulfur channel 101 towards the bottom of the sulfur channel 101, thereby preventing the sulfur foam from depositing on the inner wall of the sulfur channel 101. Meanwhile, with the circumferential movement of the rotating body 200, the spraying unit 300 can perform high-frequency pushing and sweeping treatment on the sulfur foam in the sulfur channel 101, so as to actively push the sulfur foam to the position of the output pipe 102 and discharge it naturally.

[0027] The technical solution of this invention effectively solves the drawbacks of fixed-position flushing and passive flushing in traditional sulfur foam flushing modes. By utilizing the relative rotation of the two rotating sleeves 303 on the spray unit 300, sulfur foam is pushed and accumulated from the inner wall of the sulfur channel 101 to the bottom surface of the sulfur channel 101 in the vertical section, thereby preventing sulfur foam from depositing and solidifying on the inner wall of the sulfur channel 101. Combined with the cyclic rotation of the spray unit 300, the accumulated sulfur foam is actively pushed and swept towards the outlet position of the sulfur channel 101, thus realizing a dual active flushing operation and improving the sulfur foam cleaning effect and efficiency. At the same time, by using the rotation of the rotating sleeve 303 to drive the rotation of several nozzles 304 on it, multiple flushing operations can be performed on any position in the sulfur channel 101, effectively improving the flushing effect.

[0028] Furthermore, the injection unit 300 also includes a number of guide frames 305 corresponding to each branch pipe 302. The shape of the guide frame 305 corresponds to the shape of the sulfur channel 101. The guide frame 305 is fixed relative to the conveying pipe 301 by the support frame 306. Several moving platforms 307 are provided inside the guide frame 305. The nozzle 304 is correspondingly set on the moving platform 307. The moving platform 307 moves along the shape trajectory of the guide frame 305 through the sliding body 308. The nozzle 304 is connected to the rotating sleeve 303 through the hose 309. The rotating sleeve 303 drives the moving platform 307 to move through the telescopic lever 310.

[0029] Two guide frames 305 correspond to two rotating sleeves 303 respectively, thereby enabling each guide frame 305 to guide the movement trajectory of several nozzles 304 on the corresponding rotating sleeve 303. When the cross-sectional shape of the sulfur channel 101 is arc-shaped, at least a part of the guide frame 305 is arc-shaped, and when the shape of the sulfur channel 101 is square, at least a part of the guide frame 305 is square. The support frame 306 can support the two guide frames 305.

[0030] like Figures 5 to 7As shown, taking a square-shaped guide frame 305 as an example, a guide groove with the same shape as the guide frame 305 is provided on the side wall of the guide frame 305. The slider 308 is slidably disposed in the guide groove, thereby guiding the moving stage 307 to move along the trajectory of the guide frame 305. When the moving stage 307 moves on the guide frame 305, the distance between it and the rotating sleeve 303 will change frequently. At this time, in order to keep the nozzle 304 connected to the rotating sleeve 303, a flexible hose 309 is required. At the same time, in order to move the moving stage 307, the moving stage 307 and the rotating sleeve 303 can be connected by a telescopic lever 310. That is, when the rotating sleeve 303 rotates... When the rotating sleeve 303 moves along the guide frame 305, the moving platform 307 can be moved along the trajectory of the guide frame 305 by the telescopic lever 310. With the above structure, the movement trajectory of the nozzle 304 can be kept consistent with the shape of the sulfur channel 101, so that the distance between the position of the nozzle 304 and the inner wall of the sulfur channel 101 can be kept constant, and the equal distance spraying mode can be realized. This avoids the situation where the spray angle is too large or too small when the spray distance changes frequently, which would prevent multiple flushing operations from being performed on a certain area of ​​the sulfur channel 101. When the moving platform 307 moves on the guide frame 305, the telescopic lever 310 performs telescopic movement, and the telescopic lever 310 rotates relative to the rotating sleeve 303 and the moving platform 307.

[0031] It should be noted that the telescopic lever 310 and the rotating sleeve 303 can be hinged, and the telescopic lever 310 and the moving platform 307 can be rotatably connected through a ball.

[0032] Furthermore, such as Figure 8 As shown, a sealing plate 311 is provided at the end of the rotating sleeve 303, and the hose 309 passes through the sealing plate 311 and communicates with the interior of the rotating sleeve 303. A sealing body 312 is provided inside the rotating sleeve 303 to seal a portion of the interior space of the rotating sleeve 303. The sealing body 312 is fixed relative to the branch pipe 302.

[0033] The sealing plate 311 seals the end opening of the rotating sleeve 303. The end of the hose 309 is installed on the sealing plate 311 and communicates with the inside of the rotating sleeve 303. The branch pipe 302 supports the sealing body 312, and the sealing body 312 contacts a part of the sealing plate 311. When the hose 309 moves to the area where the sealing body 312 is located, the sealing body 312 seals the hose 309. When the hose 309 moves away from the sealing body 312, the hose 309 communicates with the rotating sleeve 303.

[0034] Using the above structure, when the nozzle 304 is close to the inner wall of the sulfur channel 101, the nozzle 304 is in working condition. When the nozzle 304 is away from the inner wall of the sulfur channel 101, the seal 312 blocks the hose 309, causing the nozzle 304 to stop spraying. This can save the amount of flushing fluid used and avoid the flushing fluid sprayed from the two nozzles 304 interacting and causing repulsive force between the two nozzles 304 and the two guide frames 305 when the nozzles 304 on the two guide frames 305 are close to each other.

[0035] Furthermore, the output end of the nozzle 304 is a flat structure with an inclined orientation.

[0036] like Figure 7 As shown, when the nozzle 304 adopts a direct injection method, it cannot accurately push the sulfur foam on the inner wall of the sulfur channel 101 to the bottom surface of the sulfur channel 101. However, when the nozzle 304 adopts an inclined setting, it can actively blow the sulfur foam downward, thereby improving the aggregation effect. The flat setting of the output end of the nozzle 304 can expand the effective area of ​​the flushing liquid.

[0037] When the flat shape of the output end of the nozzle 304 is perpendicular to the corresponding inner wall of the sulfur channel 101, the flushing liquid sprayed by the nozzle 304 can achieve a large-area purging effect along the circumference of the sulfur channel 101. When the flat shape of the output end of the nozzle 304 is relatively inclined to the corresponding inner wall of the sulfur channel 101, the flushing liquid sprayed by the nozzle 304 can achieve a large-area purging effect along the rotation direction of the rotating sleeve 303. Both effects can achieve large-area purging, but their specific modes and functions can be determined according to the actual situation.

[0038] Furthermore, such as Figure 4 As shown, the rotating body 200 includes two coaxially arranged and relatively rotating ring bodies 201. During the part of the process of the conveying pipe 301 rotating with the ring body 201, the conveying pipe 301 is in working state and conveys the flushing liquid, and the movement area of ​​the conveying pipe 301 in working state on the two ring bodies 201 covers the sulfur channel 101.

[0039] Both ring bodies 201 are equipped with several spray units 300. When the two ring bodies 201 rotate relative to each other, the spray units 300 on the two ring bodies 201 can flush and purge the sulfur foam in the sulfur channel 101 in two directions. When the spray units 300 on the two ring bodies 201 are in full-time working state, the sulfur foam in any area of ​​the sulfur channel 101 will be subjected to bidirectional purging by the spray units 300 on the two ring bodies 201. At this time, the purging work is contradictory, and the sulfur foam cannot move in a directional manner. To avoid this phenomenon, the working time of the conveying pipe 301 can be set. Specifically, the conveying pipe 301 follows the ring... During the rotation of the body 201, the conveying pipe 301 is in working condition and conveys the flushing liquid. The movement area of ​​the conveying pipe 301 in working condition on both ring bodies 201 covers the sulfur channel 101. That is, when one ring body 201 rotates clockwise and pushes the sulfur foam clockwise, the working area of ​​the spraying unit 300 on the ring body 201 only covers a part of the sulfur channel 101. The remaining part can be completed by the spraying unit 300 on the other ring body 201 pushing counterclockwise. Thus, the spraying units 300 on the two ring bodies 201 do not interfere with each other and can achieve a comprehensive flushing effect on the sulfur foam in the sulfur channel 101.

[0040] In some embodiments, the circle containing the sulfur channel 101 is divided into two equal regions. The output pipe 102 is located at one intersection of the two regions, and the other intersection of the two regions is the starting point of the injection unit 300 on the ring body 201. When the injection unit 300 moves to the intersection point, the delivery pipe 301 starts to deliver the flushing liquid, and the two ring bodies 201 rotate in opposite directions, so that the delivery pipes 301 on the two ring bodies 201 can push the sulfur foam toward the output pipe 102 from two directions. When the injection unit 300 pushes the sulfur foam to the position of the output pipe 102, the delivery pipe 301 stops delivering the flushing liquid. This cycle is repeated to realize the bidirectional flushing mode of sulfur foam in the sulfur channel 101.

[0041] Furthermore, such as Figure 4 and Figure 9 As shown, the rotating body 200 also includes a support body 204; The ring body 201 includes an annular groove 202 and a sealing ring 203. The annular groove 202 and the sealing ring 203 form an annular chamber. The annular groove 202 is rotatably mounted on the sealing ring 203. The sealing ring 203 is fixed relative to the support body 204. The conveying pipe 301 is installed on the annular groove 202 and communicates with the annular chamber. A filling material is provided in the annular groove 202 to seal a part of the annular chamber. Several drive wheels 205 are provided between the two annular grooves 202 for transmission, and the drive wheels 205 are rotatably mounted on the support body 204.

[0042] The support body 204 can support the two annular grooves 202 through two sealing rings 203. Several drive wheels 205 can provide rotational power for the two annular grooves 202, and the two annular grooves 202 rotate synchronously in opposite directions, thereby causing the spraying unit 300 to circulate. The annular chamber formed by the annular grooves 202 and 30 is used to transport the flushing fluid. The filler can block part of the annular chamber, so that the spraying unit 300 will only communicate with the annular chamber when it is away from the filler. The flushing fluid in the annular chamber can be sprayed out through the spraying unit 300. The support body 204 can be directly fixed in the regeneration tower 100, and the rotational power of the drive wheels 205 can be provided by a motor.

[0043] Furthermore, the filling body includes two partitions 206, which divide the internal space of the annular chamber into a working area and an idle area. The support body 204 is provided with a liquid supply tee pipe 207 and a gas supply tee pipe 208. The two output ends of the liquid supply tee pipe 207 are respectively connected to the working areas of the two annular chambers, and the two output ends of the gas supply tee pipe 208 are respectively connected to the idle areas of the two annular chambers. The high-pressure gas in the idle area enters the working area through the gap between the partition 206 and the inner wall of the annular chamber.

[0044] like Figure 4 and Figure 9 As shown, the two separators 206 separate the annular chamber, and the annular groove 202 is still allowed to rotate on the sealing ring 203. The liquid supply tee pipe 207 can introduce flushing liquid into the two working areas, so that when the spray unit 300 moves to the working area, the flushing liquid in the working area can be sprayed out through the spray unit 300. The gas supply tee pipe 208 can introduce high-pressure gas into the idle area. When the spray unit 300 moves to the idle area, the high-pressure gas in the idle area can be sprayed out through the spray unit 300. This makes it convenient to clean the flushing liquid in the spray unit 300 and avoid flushing liquid residue. Especially when the flushing liquid is part of the desulfurization liquid drawn back from the desulfurization tower, this gas cleaning method can keep the inside of the spray unit 300 clean and unobstructed.

[0045] High-pressure gas in the idle area can also enter the working area through the gap between the partition 206 and the inner wall of the annular cavity. This can create an air seal around the partition 206, and some air bubbles in the working area can be discharged synchronously with the flushing fluid, thereby realizing the pulse jet mode of the flushing fluid and improving the flushing effect.

[0046] Furthermore, on the circle containing ring 201, one end of the two working areas is set to overlap, while the other end of the two working areas is set to stagger.

[0047] The overlapping end of the two working areas is located at the outlet of the output pipe 102. This allows the injection units 300 on the two rings 201 to push sulfur foam into the output pipe 102. When the other end of the working areas is staggered, a bidirectional flushing convergence area can be formed on the side away from the output pipe 102. The sulfur foam in this area can be bidirectionally flushed by the injection units 300 on the two rings 201. This keeps the sulfur foam in this area active and allows it to quickly leave the area. This avoids the situation where, when the ends of the two working areas are also overlapped, some of the sulfur foam in this area cannot be flushed by the injection units 300 on the two rings 201 and thus cannot move, resulting in sulfur foam accumulation.

[0048] Furthermore, such as Figure 9 As shown, the idle area consists of a backflow area and a shielding area. The backflow area allows high-pressure gas to flow into the corresponding delivery pipe 301. The shielding area is equipped with a shielding plate 209 to block the delivery pipe 301. The shielding plate 209 is fixed relative to the sealing ring 203.

[0049] When the injection unit 300 in the working area moves into the idle area, the injection unit 300 will first enter the backflush area. At this time, the high-pressure gas in the idle area will enter the injection unit 300 and clean the flushing fluid inside, avoiding flushing fluid residue. Then the injection unit 300 moves into the shielding area. At this time, the shield 209 will block the injection unit 300, so that the high-pressure gas will no longer enter the injection unit 300. This can prevent the injection unit 300 from venting exhaust gas outward throughout the entire process of moving in the idle area, making it convenient to set the exhaust cleaning work at a specific location.

[0050] Furthermore, such as Figure 10 As shown, the separator 206 includes a back plate 210 fixed relative to the sealing ring 203, a movable plate 212 disposed opposite to the back plate 210, and a sealing bladder 211 located between the back plate 210 and the movable plate 212. The movable plate 212 and the back plate 210 are connected by a spring 213. With the movable plate 212 facing the working area, the flushing fluid in the working area acts on the movable plate 212 and compresses the spring 213. At this time, the sealing bladder 211 is compressed, and its outer side will fit more tightly against the inner wall of the annular cavity. Thus, the pressure of the flushing fluid is used to enhance the sealing effect of the partition 206. The high-pressure gas in the idle area can enter the working area through the arc surface 214, thereby allowing the gas to flow in one direction and preventing the flushing fluid from entering the idle area.

[0051] An arc surface 214 inclined toward the working area is provided at the edge of the sealing bag 211.

[0052] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined herein, and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Thus, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. A sulfur flushing device for the enlarged section of the desulfurization regeneration tower top, characterized in that, It includes a rotating body that is configured to cooperate with the sulfur channel inside the external regeneration tower and several spraying units configured on the rotating body. The rotating body is capable of rotating and driving the spraying units to move along the sulfur channel trajectory. The spraying units are used to spray flushing liquid into the sulfur channel. The injection unit includes a delivery pipe, two branch pipes disposed on the delivery pipe, and a rotating sleeve rotatably disposed at the end of each branch pipe. The two rotating sleeves rotate in opposite directions, and the rotation trajectory of the rotating sleeves is coplanar with the axis of the sulfur channel. Several injection pipes are connected to the rotating sleeves.

2. The sulfur flushing equipment for the enlarged section of the desulfurization regeneration tower top as described in claim 1, characterized in that, The injection unit also includes a plurality of guide frames corresponding to each of the branch pipes. The shape of the guide frames corresponds to the shape of the sulfur channel. The guide frames are fixed relative to the conveying pipe by a support frame. A plurality of movable platforms are provided within the guide frame, and the nozzle is correspondingly disposed on the movable platform. The movable platform moves along the shape trajectory of the guide frame via a sliding body. The nozzle is connected to the rotating sleeve via a flexible hose. The rotating sleeve drives the movable platform to move via a telescopic lever.

3. The sulfur channel flushing equipment for the enlarged section at the top of the desulfurization regeneration tower according to claim 2, characterized in that, A sealing plate is provided at the end of the rotating sleeve, the hose passes through the sealing plate and communicates with the interior of the rotating sleeve, and a sealing body is provided inside the rotating sleeve for sealing a portion of the interior space of the rotating sleeve, the sealing body being fixed relative to the branch pipe.

4. The sulfur flushing equipment for the enlarged section of the desulfurization regeneration tower top as described in claim 1, characterized in that, The output end of the nozzle is a flat structure with an inclined orientation.

5. The sulfur flushing equipment for the enlarged section of the desulfurization regeneration tower top as described in claim 1, characterized in that, The rotating body includes two coaxially arranged and relatively rotating rings. During the part of the process in which the conveying pipe follows the rotation of the rings, the conveying pipe is in working state and conveys flushing liquid, and the movement area of ​​the conveying pipe in working state on the two rings covers the sulfur channel.

6. The sulfur channel flushing equipment for the enlarged section at the top of the desulfurization regeneration tower according to claim 5, characterized in that, The rotating body also includes a support body; The ring body includes an annular groove and a sealing ring. The annular groove and the sealing ring form an annular chamber. The annular groove is rotatably disposed on the sealing ring. The sealing ring is fixed relative to the support body. The delivery pipe is installed on the annular groove and communicates with the annular chamber. A filling material is disposed in the annular groove to seal a portion of the annular chamber. A plurality of drive wheels are provided between the two annular grooves, and the drive wheels are rotatably mounted on the support body.

7. The sulfur flushing equipment for the enlarged section of the desulfurization regeneration tower top as described in claim 6, characterized in that, The filling body includes two partitions that divide the internal space of the annular cavity into a working area and an idle area. The support body is provided with a liquid supply tee and a gas supply tee. The two output ends of the liquid supply tee are respectively connected to the working areas of the two annular cavities, and the two output ends of the gas supply tee are respectively connected to the idle areas of the two annular cavities. The high-pressure gas in the idle area enters the working area through the gap between the partition and the inner wall of the annular cavity.

8. The sulfur flushing equipment for the enlarged section of the desulfurization regeneration tower top as described in claim 7, characterized in that, On the circle containing the annulus, one end of the two working areas overlaps, and the other end of the two working areas is staggered.

9. The sulfur flushing equipment for the enlarged section of the desulfurization regeneration tower top as described in claim 7, characterized in that, The idle area consists of a backflush zone and a shielding zone. The backflush zone allows high-pressure gas to flow into the corresponding delivery pipe. The shielding zone is equipped with a shield to block the delivery pipe. The shield is fixed relative to the sealing ring.

10. The sulfur flushing equipment for the enlarged section of the desulfurization regeneration tower top as described in claim 7, characterized in that, The separator includes a back plate fixed relative to the sealing ring, a movable plate disposed opposite to the back plate, and a sealing bladder located between the back plate and the movable plate. The movable plate and the back plate are connected by a spring. An arc surface inclined toward the working area is provided at the edge of the sealing bladder.

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