Regeneration and sedimentation integrated equipment for acid gas desulfurization

Abstract

The present application discloses a regeneration and sedimentation integrated device for acid gas desulfurization, including a tank body, in which a regeneration zone and a sedimentation zone are sequentially arranged along the flow direction of the desulfurized rich liquid, the regeneration zone includes at least 3 sub-regeneration zones connected in sequence, the bottom of each sub-regeneration zone is provided with an aeration device, the first terminal regeneration zone located at the front end of the desulfurized rich liquid flow direction is provided with a liquid inlet pipe, and the outlet end of the liquid inlet pipe is located close to the aeration device; partitions are provided between adjacent sub-regeneration zones, and between the terminal sub-regeneration zone and the sedimentation zone located at the end of the desulfurized rich liquid flow direction, the lower part of the partition is connected to the tank body and extends upward in the vertical direction, and the upper part of the partition is folded back in the direction of the previous sub-regeneration zone of each sub-regeneration zone. The present application can realize multi-stage regeneration of desulfurized rich liquid in stages, with good regeneration effect, low operating cost, obvious sedimentation effect, and solve the problem of sulfur particles carried by desulfurized lean liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of gas purification and treatment, in particular to a regeneration and sedimentation integrated device for acid gas desulfurization. Background Art

[0002] Hydrogen sulfide is a toxic and harmful acidic gas. Gas containing hydrogen sulfide must be desulfurized before being discharged into the atmosphere or entering the next process stage. The complex iron desulfurization process in wet desulfurization is widely used as a method for removing high-concentration hydrogen sulfide. Its chemical reaction principle is to use oxygen in the air to oxidize hydrogen sulfide into elemental sulfur in the complex iron desulfurization liquid, and the desulfurization liquid is regenerated and recycled.

[0003] At present, the regeneration in the complex iron desulfurization process is divided into floating type and sedimentation type to separate the sulfur produced by the reaction. The floating regeneration separation requires more operating equipment, such as foam tanks, etc., and the operation is complicated, the equipment is large in size, and the operating cost is high; with sedimentation regeneration separation, air is directly introduced into the regeneration tank, and the complex iron in the desulfurization liquid is regenerated and oxidized by the oxygen in the air. The sulfur particles in the desulfurization liquid rely on their own gravity to settle at the bottom of the sedimentation area and are sent to the separation and recovery unit through the sulfur slurry outlet, thereby realizing solid-liquid separation. The regenerated desulfurization liquid is discharged to the hydrogen sulfide absorption unit through the liquid outlet for recycling. When treating high-concentration hydrogen sulfide, sedimentation-type regeneration separation will produce a large amount of sulfur, and the sedimentation effect is not obvious. It is difficult for the regeneration tank to completely separate and settle all the sulfur particles. The desulfurization lean liquid contains sulfur particles. The desulfurization liquid that circulates into the absorption tower after regeneration contains too many sulfur particles, which will cause foaming and seriously affect the sedimentation and regeneration effects. The weakened regeneration effect directly affects the effect of removing hydrogen sulfide, resulting in unqualified hydrogen sulfide content in the purified gas. It will also cause blockage of the air aeration device and the desulfurization liquid to carry waste air into the hydrogen sulfide absorption tower, resulting in low air utilization and high desulfurization costs.

[0004] Therefore, it is necessary to optimize the structure of the regeneration equipment, improve the sedimentation effect and regeneration effect, solve the problem of sulfur particles carried in the desulfurization lean liquid, further improve the desulfurization effect, and reduce the operating costs of the equipment. Utility Model Content

[0005] In order to solve at least one of the problems mentioned in the background technology, an embodiment of the present application provides an integrated regeneration and sedimentation equipment for acid gas desulfurization, which can realize staged multi-stage regeneration of desulfurized rich liquid, improve the regeneration efficiency, reduce the flow rate of the air fan, improve the utilization rate of oxygen in the air, and reduce the processing cost. After regeneration, the desulfurized rich liquid is efficiently separated in the sedimentation area, the desulfurized lean liquid in the upper layer of the inclined plate sedimentation area carries less sulfur particles, and the amount of sulfur settled increases, thereby improving the overall desulfurization efficiency.

[0006] The embodiment of the present application provides a regeneration and sedimentation integrated device for acid gas desulfurization, comprising a tank body, wherein a regeneration zone and a sedimentation zone are sequentially arranged in the tank body along the flow direction of the desulfurized rich liquid, wherein the regeneration zone comprises at least three sub-regeneration zones connected in sequence, and an aeration device is arranged at the bottom of each sub-regeneration zone, and a liquid inlet pipe is arranged in the head terminal regeneration zone located at the front end of the flow direction of the desulfurized rich liquid, and the outlet end of the liquid inlet pipe is located close to the aeration device;

[0007] A partition is provided between adjacent sub-regeneration zones, and between the terminal sub-regeneration zone at the end of the desulfurized rich liquid flow direction and the sedimentation zone, the lower part of the partition is connected to the tank body and extends upward in the vertical direction, and the upper part of the partition is bent back toward the direction of the previous sub-regeneration zone of each sub-regeneration zone;

[0008] The sub-regeneration zone located in the middle and the terminal sub-regeneration zone located at the end of the desulfurized rich liquid flow direction are also provided with baffles, the baffles are located at the upper part of each sub-regeneration zone and are arranged close to the sub-regeneration zone of the previous stage, the baffles include horizontal plates and vertical plates, the horizontal plates extend in the horizontal direction, and the vertical plates are connected to the rear end of the horizontal plates and extend upward in the vertical direction;

[0009] The terminal sub-regeneration zone located at the end of the desulfurized rich liquid flow direction is connected to the sedimentation zone, and an inclined plate sedimentation zone is arranged on the upper part of the sedimentation zone.

[0010] In a feasible implementation, an overflow plate is provided on the partition, and the overflow plate is connected to the front end of the folded portion on the upper portion of the partition and extends vertically upward.

[0011] In one feasible embodiment, there is a flow gap between the folded portion at the upper part of the partition and the partition of the sub-regeneration zone of the previous stage, the deflector is located at the flow gap, there is a first gap between the front end of the horizontal plate and the partition of the sub-regeneration zone of the previous stage, the vertical plate extends upward to the front end of the folded portion near the upper part of the partition and has a second gap, and the distance of the first gap is greater than the distance of the second gap.

[0012] In one feasible embodiment, the settling zone is provided with a first baffle, a second baffle, a liquid outlet and a sulfur slurry outlet.

[0013] The first baffle is close to the terminal regeneration zone, the second baffle is far away from the terminal regeneration zone and is arranged in parallel with the first baffle, and the inclined plate sedimentation zone is located between the first baffle and the second baffle; the bottom end of the first baffle extends to the bottom of the sedimentation zone, the top end of the first baffle extends upward and is higher than the inclined plate sedimentation zone, the top end of the second baffle extends upward to the top of the sedimentation zone, and the bottom end of the second baffle extends downward to the middle of the sedimentation zone;

[0014] A clear liquid overflow port is provided on the second baffle plate above the inclined plate sedimentation zone, the liquid outlet is located in the middle of the side of the sedimentation zone close to the second baffle plate, and the sulfur slurry outlet is located at the bottom of the side of the sedimentation zone close to the second baffle plate, for connecting to the sulfur recovery unit.

[0015] In a feasible implementation, the settling area is provided with a guide plate, a settling inclined plate and an anti-sedimentation plate;

[0016] The guide plate is inclined from the bottom of the first baffle plate from the terminal regeneration zone toward the direction close to the sulfur slurry outlet, the sedimentation inclined plate is inclined from the bottom of the second baffle plate toward the direction close to the regeneration zone to the middle position between the first baffle plate and the second baffle plate, and the anti-deposition plate is inclined from the bottom of the liquid outlet to the top of the sedimentation inclined plate.

[0017] In a feasible embodiment, the sedimentation zone is also provided with a liquid return port, which is higher than the inclined plate sedimentation zone and is arranged at the upper part of the side surface of the sedimentation zone close to the second baffle side, for returning the liquid separated by the sulfur recovery unit to the sedimentation zone.

[0018] In a feasible implementation, the tank body is provided with a top cover, the top cover is provided with at least one exhaust chimney, and the top cover is also provided with a plurality of maintenance manholes.

[0019] In an achievable embodiment, the top cover is provided with a liquid inlet interface for inputting the desulfurized rich liquid to be treated, and the liquid inlet interface is connected to the inlet end of the liquid inlet pipe;

[0020] The top cover is also provided with an air inlet interface corresponding to the aeration device one by one, and the air inlet interface is connected with the aeration device through an air inlet pipe.

[0021] In a feasible implementation, a channel steel is provided on the outside of the trough body, and the channel steel is welded to the outer side surface of the trough body for fixing and strengthening the trough body.

[0022] In an achievable implementation, a liquid level meter installation opening is provided at the bottom of the first terminal regeneration zone on a side away from the sedimentation zone.

[0023] In summary, the regeneration and sedimentation integrated equipment for acid gas desulfurization provided by the present application has a regeneration zone with multiple sub-regeneration zones connected in sequence, and air is introduced into each sub-regeneration zone respectively. The desulfurized rich liquid is diverted multiple times and regenerated in stages in the regeneration zone, which effectively increases the regeneration time. There is no need to introduce a large amount of air at one time, which can effectively avoid the phenomenon of excessive one-time output of a large amount of sulfur causing blockage of the aeration device, and at the same time can reduce the flow rate of the air fan, improve the utilization rate of oxygen in the air, and reduce the processing cost; at the same time, the sulfur generated in the regeneration process enters the next-level sub-regeneration zone with the liquid diversion, further improving the regeneration effect, improving the utilization rate of oxygen in the air, and improving the regeneration effect; the desulfurized liquid after graded regeneration enters the sedimentation zone and is efficiently separated through the inclined plate sedimentation zone. The desulfurized lean liquid in the upper layer of the inclined plate sedimentation zone carries less sulfur particles, and the amount of sulfur settled at the bottom of the sedimentation zone increases, thereby improving the overall desulfurization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of the structure of the integrated regeneration and sedimentation equipment for acid gas desulfurization provided in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 10-tank body; 11-top cover; 12-exhaust chimney; 13-maintenance manhole; 14-liquid inlet interface; 15-air inlet interface; 16-channel steel; 17-liquid level gauge installation port;

[0028] 20-regeneration zone; 21-sub-regeneration zone; 211-head terminal regeneration zone; 212-terminal sub-regeneration zone; 22-aeration device; 23-liquid inlet pipe; 24-partition plate; 25-overflow plate; 26-baffle plate; 27-air inlet pipe;

[0029] 30-sedimentation zone; 31-first baffle; 32-second baffle; 321-clear liquid overflow port; 33-inclined plate sedimentation zone; 34-liquid outlet; 35-sulfur slurry outlet; 36-liquid return port; 37-guide plate; 38-sedimentation inclined plate; 39-anti-deposition plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the embodiment of the present application. It is worth noting that the embodiments described in the drawings are only part of the embodiments of the present application, not all of the embodiments. That is, the embodiments described by the drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application.

[0031] The following will be combined Figure 1 The integrated regeneration and sedimentation equipment for acid gas desulfurization provided in the embodiments of the present application is described.

[0032] The present application provides a regeneration and sedimentation integrated device for acid gas desulfurization, such as Figure 1 As shown, it includes a tank body 10, in which a regeneration zone 20 and a sedimentation zone 30 are sequentially arranged along the flow direction of the desulfurized rich liquid. The regeneration zone 20 includes at least three sub-regeneration zones 21 connected in sequence. An aeration device 22 is arranged at the bottom of each sub-regeneration zone 21. A liquid inlet pipe 23 is arranged in the head terminal regeneration zone 211 located at the front end of the flow direction of the desulfurized rich liquid, and the outlet end of the liquid inlet pipe 23 is located close to the aeration device 22.

[0033] Partitions 24 are provided between adjacent sub-regeneration zones 21, and between the terminal sub-regeneration zone 212 located at the end of the flow of the desulfurized rich liquid and the sedimentation zone 30. The lower part of the partition 24 is connected to the tank body 10 and extends upward in the vertical direction, and the upper part of the partition 24 is bent back toward the direction of the previous sub-regeneration zone 21 of each sub-regeneration zone 21.

[0034] Baffles 26 are also provided in the middle sub-regeneration zone 21 and the terminal sub-regeneration zone 212 located at the end of the desulfurized rich liquid flow. The baffles 26 are located at the upper part of each sub-regeneration zone 21 and are close to the previous sub-regeneration zone 21. The baffles 26 include horizontal plates and vertical plates. The horizontal plates extend in the horizontal direction, and the vertical plates are connected to the rear end of the horizontal plates and extend upward in the vertical direction.

[0035] The terminal sub-regeneration zone 212 located at the end of the desulfurized rich liquid flow direction is connected to the sedimentation zone 30 , and an inclined plate sedimentation zone 33 is provided at the upper part of the sedimentation zone 30 .

[0036] The tank body 10 is a rectangular parallelepiped tank, and each sub-regeneration zone 21 of the regeneration zone 20 and the sedimentation zone 30 are arranged along the length direction in the tank body 10 .

[0037] Exemplarily, the number of sub-regeneration zones 21 is 5, and the desulfurized rich liquid is subjected to a staged five-stage regeneration in the regeneration zone 20. The desulfurized rich liquid overflows from the previous sub-regeneration zone 21 into the next sub-regeneration zone 21, and the baffle 26 guides the desulfurized rich liquid to flow downward to the aeration device 22. After the desulfurized rich liquid is fully contacted and reacted with the air, it flows out along the partition 24. The air utilization rate of the graded regeneration can be increased to 18% to 25%, the flow rate of the air fan is reduced, and the regeneration effect is accumulated step by step. The generated sulfur flows into the sedimentation zone 30 along with the desulfurized liquid in the step-by-step regeneration reaction, thereby avoiding the deposition of sulfur in the regeneration zone 20.

[0038] The regeneration zone 20 of the regeneration and sedimentation integrated equipment for acid gas desulfurization provided in the embodiment of the present application has a plurality of sub-regeneration zones 21 connected in sequence, and air is respectively introduced into each sub-regeneration zone 21. The desulfurized rich liquid is repeatedly diverted and regenerated in stages in the regeneration zone 20, which effectively increases the regeneration time. There is no need to introduce a large amount of air at one time, which can effectively avoid the phenomenon that a large amount of sulfur is produced at one time and causes the aeration device 22 to be blocked. At the same time, the sulfur generated during the regeneration process enters the next-level sub-regeneration zone 21 with the liquid diverted, further improving the regeneration effect. The sedimentation zone 30 effectively separates the sulfur particles and gas in the desulfurized liquid by setting an inclined plate sedimentation zone 33, and the upper clear liquid of the inclined plate sedimentation zone 30 is a desulfurized lean liquid without sulfur particles and gas. The problems of blockage of the absorption tower, incomplete absorption of hydrogen sulfide, and liquid carrying waste air into the absorption tower are avoided.

[0039] In summary, the integrated regeneration and sedimentation equipment for acid gas desulfurization provided in the embodiment of the present application has a simple structure and complex functions. The desulfurized rich liquid is deflected multiple times and regenerated in stages in the regeneration zone 20. The utilization rate of oxygen in the air is high, which reduces the operating cost. The sulfur particles carried by the desulfurized lean liquid are reduced, and the amount of sulfur settled at the bottom of the sedimentation zone 30 is increased. The sedimentation effect is obvious, which is beneficial to improving the overall desulfurization efficiency.

[0040] In one possible implementation, Figure 1 As shown, an overflow plate 25 is provided on the partition 24, and the overflow plate 25 is connected to the front end of the folded portion at the upper part of the partition 24 and extends vertically upward.

[0041] This arrangement can extend the regeneration reaction time, further save costs, and increase the regeneration reaction rate at each level.

[0042] In one possible implementation, Figure 1 As shown, there is a flow gap between the folded portion at the top of the partition 24 and the partition 24 of the previous sub-regeneration zone 21, the deflector 26 is located at the flow gap, there is a first gap s1 between the front end of the horizontal plate and the partition 24 of the previous sub-regeneration zone 21, the vertical plate extends upward to the front end of the folded portion near the top of the partition 24 and has a second gap s2, and the distance of the first gap s1 is greater than the distance of the second gap s2.

[0043] The liquid overflowing from the previous sub-regeneration zone 21 enters the bottom of the sub-regeneration zone 21 through the first gap s1, and the desulfurized rich liquid fully contacts and reacts with the air output by the aeration device 22, and then overflows into the next sub-regeneration zone 21 through the second gap s2. The distance of the first gap s1 is set to be greater than the distance of the second gap s2, which can ensure that the desulfurized rich liquid flows along the Figure 1 The path indicated by the middle arrow is deflected through the regeneration zone 20, further improving the staged multi-level regeneration effect.

[0044] In one possible implementation, Figure 1 As shown, the settling zone 30 is provided with a first baffle 31 , a second baffle 32 , a liquid outlet 34 and a sulfur slurry outlet 35 .

[0045] The first baffle plate 31 is close to the terminal sub-regeneration zone 212, the second baffle plate 32 is far away from the terminal sub-regeneration zone 212 and is arranged parallel to the first baffle plate 31, and the inclined plate sedimentation zone 33 is located between the first baffle plate 31 and the second baffle plate 32; the bottom end of the first baffle plate 31 extends to the bottom of the sedimentation zone 30, the top end of the first baffle plate 31 extends upward and is higher than the inclined plate sedimentation zone 33, the top end of the second baffle plate 32 extends upward to the top of the sedimentation zone 30, and the bottom end of the second baffle plate 32 extends downward to the middle of the sedimentation zone 30.

[0046] A clear liquid overflow port 321 is provided on the second baffle plate 32 above the inclined plate sedimentation zone 33. The liquid outlet 34 is located in the middle of the side of the sedimentation zone 30 close to the second baffle plate 32. The sulfur slurry outlet 35 is located at the bottom of the side of the sedimentation zone 30 close to the second baffle plate 32, for connecting to the sulfur recovery unit.

[0047] The first baffle 31 can intercept the regenerated desulfurization liquid flowing from the regeneration zone 20, so that the desulfurization liquid will not directly impact the rear end of the sedimentation zone 30, which fully reduces the situation where sulfur particles are carried away by the desulfurization liquid and improves the sedimentation effect.

[0048] The inclined plate sedimentation zone 33 has the function of separating gas, solid and liquid. Combined with the clear liquid overflow port 321 on the second baffle 32, the problem of the clear liquid in the upper layer of the inclined plate sedimentation zone 33 carrying sulfur particles and waste gas is effectively solved.

[0049] With this arrangement, the first baffle 31, the inclined plate sedimentation zone 33 and the second baffle 32 have a triple sedimentation effect, which further improves the sedimentation effect and facilitates gas desulfurization related operations.

[0050] In one possible implementation, Figure 1 As shown, the sedimentation area 30 is provided with a guide plate 37 , a sedimentation inclined plate 38 and an anti-sedimentation plate 39 .

[0051] The guide plate 37 is inclined from the bottom of the first baffle plate 31 from the terminal sub-regeneration zone 212 toward the direction close to the sulfur slurry outlet 35, the sedimentation inclined plate 38 is inclined from the bottom of the second baffle plate 32 toward the direction close to the regeneration zone 20 to the middle position between the first baffle plate 31 and the second baffle plate 32, and the anti-deposition plate 39 is inclined from the bottom of the liquid outlet 34 to the top of the sedimentation inclined plate 38.

[0052] With this arrangement, a small amount of sulfur directly impacting the rear end of the settling area 30 is returned to the bottom at the settling inclined plate 38 due to its own gravity, so that the settling effect is better.

[0053] In one possible implementation, Figure 1 As shown, the sedimentation zone 30 is also provided with a liquid return port 36 , which is higher than the inclined plate sedimentation zone 33 and is arranged at the upper part of the side surface of the sedimentation zone 30 close to the second baffle 32 , for returning the liquid separated by the sulfur recovery unit to the sedimentation zone 30 .

[0054] Such an arrangement has a certain buffering effect on the clear liquid separated from the inclined plate sedimentation zone 33, further improving the sedimentation effect and increasing the utilization rate of the desulfurized liquid.

[0055] In one possible implementation, Figure 1 As shown, the tank body 10 is provided with a top cover 11 , and the top cover 11 is provided with at least one exhaust chimney 12 , and the top cover 11 is also provided with a plurality of maintenance manholes 13 .

[0056] This arrangement facilitates the collection and treatment of waste gas in the tank as well as subsequent operation and maintenance.

[0057] In one possible implementation, Figure 1 As shown, a liquid inlet interface 14 for inputting the desulfurized rich liquid to be treated is provided on the top cover 11 , and the liquid inlet interface 14 is communicated with the inlet end of the liquid inlet pipe 23 .

[0058] The top cover 11 is also provided with an air inlet interface 15 corresponding one-to-one with the aeration device 22 , and the air inlet interface 15 is connected to the aeration device 22 through an air inlet pipe 27 .

[0059] This arrangement makes installation and maintenance easier and improves operational accuracy and reliability.

[0060] In one possible implementation, Figure 1 As shown, a channel steel 16 is provided outside the trough body 10 , and the channel steel 16 is welded to the outer surface of the trough body 10 for fixing and strengthening the trough body 10 .

[0061] This arrangement can improve the structural stability and safety of the equipment.

[0062] In one possible implementation, Figure 1As shown, a liquid level meter installation opening 17 is provided at the bottom of the first terminal regeneration zone 211 on the side away from the sedimentation zone 30 .

[0063] With this arrangement, the overall control and adjustment of the equipment can be conveniently and efficiently performed by performing instrument monitoring on the first terminal regeneration zone 211 .

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A regeneration and sedimentation integrated device for acid gas desulfurization, characterized in that: It comprises a tank body, wherein a regeneration zone and a settling zone are sequentially arranged in the tank body along the flow direction of the desulfurized rich liquid, the regeneration zone comprises at least three sub-regeneration zones connected in sequence, an aeration device is arranged at the bottom of each sub-regeneration zone, and a liquid inlet pipe is arranged in the head terminal regeneration zone located at the front end of the flow direction of the desulfurized rich liquid, and the outlet end of the liquid inlet pipe is located close to the aeration device; A partition is provided between adjacent sub-regeneration zones, and between the terminal sub-regeneration zone at the end of the desulfurized rich liquid flow direction and the sedimentation zone, the lower part of the partition is connected to the tank body and extends upward in the vertical direction, and the upper part of the partition is bent back toward the direction of the previous sub-regeneration zone of each sub-regeneration zone; Baffles are also provided in the sub-regeneration zone located in the middle and the terminal sub-regeneration zone located at the end where the desulfurized rich liquid flows. The baffles are located at the upper part of each sub-regeneration zone and are close to the sub-regeneration zone of the previous stage. The baffles include horizontal plates and vertical plates. The horizontal plates extend in the horizontal direction, and the vertical plates are connected to the rear end of the horizontal plates and extend upward in the vertical direction. The terminal sub-regeneration zone located at the end where the desulfurized rich liquid flows is connected to the sedimentation zone, and an inclined plate sedimentation zone is provided at the upper part of the sedimentation zone.

2. The regeneration and sedimentation integrated equipment for acid gas desulfurization according to claim 1, characterized in that: An overflow plate is arranged on the partition, and the overflow plate is connected to the front end of the folded portion at the upper part of the partition and extends vertically upward.

3. The regeneration and sedimentation integrated equipment for acid gas desulfurization according to claim 2, characterized in that: There is a flow gap between the folded portion at the upper part of the partition and the partition of the sub-regeneration zone of the previous level, the deflector is located at the flow gap, there is a first gap between the front end of the horizontal plate and the partition of the sub-regeneration zone of the previous level, the vertical plate extends upward to the front end of the folded portion near the upper part of the partition and has a second gap, and the distance of the first gap is greater than the distance of the second gap.

4. The regeneration and sedimentation integrated equipment for acid gas desulfurization according to claim 1, characterized in that: The settling zone is provided with a first baffle, a second baffle, a liquid outlet and a sulfur slurry outlet. The first baffle is close to the terminal regeneration zone, the second baffle is far away from the terminal regeneration zone and is arranged in parallel with the first baffle, and the inclined plate sedimentation zone is located between the first baffle and the second baffle; the bottom end of the first baffle extends to the bottom of the sedimentation zone, the top end of the first baffle extends upward and is higher than the inclined plate sedimentation zone, the top end of the second baffle extends upward to the top of the sedimentation zone, and the bottom end of the second baffle extends downward to the middle of the sedimentation zone; A clear liquid overflow port is provided on the second baffle plate above the inclined plate sedimentation zone, the liquid outlet is located in the middle of the side of the sedimentation zone close to the second baffle plate, and the sulfur slurry outlet is located at the bottom of the side of the sedimentation zone close to the second baffle plate, for connecting to the sulfur recovery unit.

5. The regeneration and sedimentation integrated equipment for acid gas desulfurization according to claim 4, characterized in that: The settling area is provided with a guide plate, a settling inclined plate and an anti-sedimentation plate; The guide plate is inclined from the bottom of the first baffle plate from the terminal regeneration zone toward the direction close to the sulfur slurry outlet, the sedimentation inclined plate is inclined from the bottom of the second baffle plate toward the direction close to the regeneration zone to the middle position between the first baffle plate and the second baffle plate, and the anti-deposition plate is inclined from the bottom of the liquid outlet to the top of the sedimentation inclined plate.

6. The regeneration and sedimentation integrated equipment for acid gas desulfurization according to claim 4, characterized in that: The sedimentation zone is also provided with a liquid return port, which is higher than the inclined plate sedimentation zone and is arranged at the upper part of the side surface of the sedimentation zone close to the second baffle, for returning the liquid separated by the sulfur recovery unit to the sedimentation zone.

7. The regeneration and sedimentation integrated equipment for acid gas desulfurization according to any one of claims 1 to 6, characterized in that: The tank body is provided with a top cover, the top cover is provided with at least one exhaust chimney, and the top cover is also provided with a plurality of maintenance manholes.

8. The regeneration and sedimentation integrated equipment for acid gas desulfurization according to claim 7, characterized in that: The top cover is provided with a liquid inlet interface for inputting the desulfurized rich liquid to be treated, and the liquid inlet interface is connected to the inlet end of the liquid inlet pipe; The top cover is also provided with an air inlet interface corresponding to the aeration device one by one, and the air inlet interface is connected with the aeration device through an air inlet pipe.

9. The regeneration and sedimentation integrated equipment for acid gas desulfurization according to claim 7, characterized in that: A channel steel is disposed outside the trough body, and the channel steel is welded to the outer side surface of the trough body to fix and strengthen the trough body.

10. The regeneration and sedimentation integrated equipment for acid gas desulfurization according to claim 7, characterized in that: A liquid level meter installation opening is provided at the bottom of the first terminal regeneration zone on a side away from the sedimentation zone.

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