CN220047721U - Regeneration device for desulfurization rich liquid of coke oven gas - Google Patents
Regeneration device for desulfurization rich liquid of coke oven gas Download PDFInfo
- Publication number
- CN220047721U CN220047721U CN202321465833.6U CN202321465833U CN220047721U CN 220047721 U CN220047721 U CN 220047721U CN 202321465833 U CN202321465833 U CN 202321465833U CN 220047721 U CN220047721 U CN 220047721U
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- air
- regeneration
- pipe
- spiral coil
- air injection
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 91
- 230000023556 desulfurization Effects 0.000 title claims abstract description 91
- 230000008929 regeneration Effects 0.000 title claims abstract description 74
- 238000011069 regeneration method Methods 0.000 title claims abstract description 74
- 239000000571 coke Substances 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 title claims description 81
- 238000002347 injection Methods 0.000 claims abstract description 51
- 239000007924 injection Substances 0.000 claims abstract description 51
- 238000005507 spraying Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 230000001172 regenerating effect Effects 0.000 claims 6
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000000243 solution Substances 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 11
- 239000007789 gas Substances 0.000 description 50
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 18
- 239000007921 spray Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000006260 foam Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000004939 coking Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- -1 hydrogen sulfide ions Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a regeneration device of a coke oven gas desulfurization rich solution, which comprises a regeneration tank and a lean solution outlet arranged at the upper part of the regeneration tank, wherein an air inlet pipe and a rich solution inlet pipe are arranged at the lower part of the regeneration tank, an air injection spiral coil pipe is arranged at the lower part of the regeneration tank, the air inlet pipe is communicated with the air inlet end of the air injection spiral coil pipe, a plurality of air injection pipes are uniformly distributed at the top of the air injection spiral coil pipe along the length direction of the air injection spiral coil pipe, an air hood with an open lower end is sleeved on the air injection pipes, a limiting ring is arranged on the inner wall of the open end of the air hood, and a limiting block is arranged on the outer wall of the air injection pipe above the limiting ring. The utility model can avoid air outlet blockage, has high working efficiency and good regeneration effect, and has obvious economic and social values.
Description
Technical Field
The utility model relates to the technical field of coke oven gas desulfurization, in particular to a regeneration device of a coke oven gas desulfurization rich solution.
Background
In order to meet the requirements of environmental protection and purification of product gas downstream of coke oven gas in the coking industry, a desulfurization device of the coke oven gas is basically built, and most of desulfurization devices adopt a wet oxidation desulfurization process to enable desulfurization lean solution to be in contact with the coking gas, further hydrogen sulfide in the coking gas is washed, the purpose of desulfurization is achieved, purified gas and desulfurization rich solution are obtained, in order to improve the utilization rate of the desulfurization solution, the cost is saved, the desulfurization rich solution is generally regenerated, and then the desulfurization solution is recycled. When the desulfurization rich liquid is regenerated, the desulfurization rich liquid is pressurized or fed into the lower part of the regeneration device by means of static pressure, and meanwhile compressed air is fed into the bottom of the regeneration device, and flows to the top of the regeneration device from bottom to top.
At present, when a desulfurization rich solution is regenerated by a regeneration device, the following problems are often involved: firstly, an outlet of compressed air is exposed in a desulfurization rich solution, and the desulfurization rich solution contains a large amount of particulate matters, when production is stopped or air is not introduced, the particulate matters are precipitated, so that the air outlet is blocked, the problem of insufficient air quantity is caused, the desulfurization rich solution cannot be fully contacted with the air, and the regeneration effect of the desulfurization rich solution is poor; secondly, the problem of uneven mixing of air and the desulfurization rich solution exists, and the regeneration efficiency of the desulfurization rich solution is reduced. Therefore, the regeneration device of the coke oven gas desulfurization rich liquid, which can avoid the blockage of an air outlet, has high working efficiency and good regeneration effect, is objectively needed.
Disclosure of Invention
The utility model aims to provide a regeneration device for coke oven gas desulfurization rich liquid, which can avoid air outlet blockage, has high working efficiency and good regeneration effect.
The utility model aims at realizing the purposes, and the device comprises a regeneration tank and a lean solution outlet arranged at the upper part of the regeneration tank, wherein an air inlet pipe and a rich solution inlet pipe are arranged at the lower part of the regeneration tank, an air injection spiral coil pipe is arranged at the lower part of the regeneration tank, the air inlet pipe is communicated with the air inlet end of the air injection spiral coil pipe, a plurality of air injection pipes are uniformly distributed at the top of the air injection spiral coil pipe along the length direction of the air injection spiral coil pipe, an air hood with an open lower end is sleeved on the air injection pipes, a limiting ring is arranged on the inner wall of the open end of the air hood, and a limiting block is arranged on the outer wall of the air injection pipe above the limiting ring.
Further, the top of the gas hood is provided with a balancing weight.
Further, a spray spiral coil is arranged in the regeneration groove below the spray spiral coil, a plurality of spray pipes are uniformly distributed at the bottom of the spray spiral coil along the length direction of the spray spiral coil, and the spray direction of the spray pipes faces the bottom of the regeneration groove.
Further, the cross-sectional area of the inner wall of the liquid spraying pipe gradually becomes smaller from top to bottom.
Further, a sealing gasket is arranged at the top in the gas hood.
Further, a temperature sensor is arranged in the regeneration tank, and a steam pipe is communicated with the air inlet pipe.
Further, a motor is arranged at the bottom of the regeneration tank, and a stirring blade is arranged after an output shaft of the motor stretches into the regeneration tank.
When the desulfurization device is operated, the desulfurization rich liquid enters the bottom of the regeneration groove from the rich liquid inlet pipe, compressed air is introduced into the air injection spiral coil from the air inlet pipe, is sprayed out along the air injection pipe, overcomes the water pressure and the gravity of the air hood, then lifts the air hood up, is sprayed out along the gap between the air hood and the air injection pipe, is sprayed into the desulfurization rich liquid to form bubbles, contacts with the desulfurization rich liquid to generate oxidation-reduction reaction, forms elemental sulfur, and obtains desulfurization lean liquid, thereby achieving the aim of regeneration of the desulfurization rich liquid, and the desulfurization lean liquid is discharged from the lean liquid outlet and returns to the desulfurization device to continue the desulfurization process of the coke oven gas. In the process, the outlet of compressed air, namely the upper end of the air injection pipe is positioned in the air hood, the air hood is jacked up by air flow during ventilation, and when production is stopped or compressed air is not introduced, the air hood moves downwards under the action of water pressure and self gravity, so that the top of the air hood is tightly attached to the upper port of the air injection pipe, the upper end of the air injection pipe is sealed, the desulfurization rich liquid can be prevented from entering the air injection pipe and the air injection spiral coil, further, the problem that the air injection spiral coil is blocked by particulate matter precipitation in the desulfurization rich liquid is avoided, namely the problem that the outlet of the compressed air is blocked is effectively avoided, the compressed air can be smoothly injected into the desulfurization rich liquid for a long time, and the desulfurization rich liquid is ensured to be better regenerated; secondly, jet spiral coil sets up in the lower part of regeneration groove, and fills up the cross section of regeneration groove, and a plurality of jet pipes are evenly arranged along jet spiral coil's length direction in addition, after compressed air spouts desulfurization rich solution through jet spiral coil and jet pipe in proper order, can produce comparatively even bubble in the desulfurization rich solution, and the bubble distributes evenly in the regeneration groove, does not have the dead angle, can be abundant with desulfurization rich solution contact, regeneration efficiency is higher, and regeneration effect is better. The utility model can avoid air outlet blockage, has high working efficiency and good regeneration effect, and has obvious economic and social values.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an enlarged schematic view of the node A in FIG. 1;
FIG. 3 is a schematic cross-sectional view of B-B of FIG. 2;
in the figure: the device comprises a regeneration tank 1, a lean liquid outlet 2, an air inlet pipe 3, a rich liquid inlet pipe 4, a jet spiral coil pipe 5, a jet pipe 6, a gas hood 7, a limit ring 8, a limit block 9, a balancing weight 10, a jet spiral coil pipe 11, a jet pipe 12, a sealing gasket 13, a temperature sensor 14, a steam pipe 15, a motor 16 and a stirring blade 17.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings, without limiting the utility model in any way, and any alterations or modifications based on the utility model are within the scope of the utility model.
As shown in fig. 1 to 3, the utility model comprises a regeneration tank 1 and a lean solution outlet 2 arranged at the upper part of the regeneration tank 1, wherein the regeneration tank 1 is in the prior art, desulfurization rich solution reacts with air in the regeneration tank 1 so as to realize regeneration, an air inlet pipe 3 and a rich solution inlet pipe 4 are arranged at the lower part of the regeneration tank 1, an air injection spiral coil 5 is arranged at the lower part of the regeneration tank 1, the air inlet pipe 3 is communicated with the air inlet end of the air injection spiral coil 5, a plurality of air injection pipes 6 are uniformly distributed at the top of the air injection spiral coil 5 along the length direction, an air hood 7 with an open lower end is sleeved on the air injection pipes 6, a limiting ring 8 is arranged on the inner wall of the open end of the air hood 7, a limiting block 9 is arranged on the outer wall of the air injection pipe 6 above the limiting ring 8, and when the air hood 7 is jacked by air flow, the limiting ring 8 and the limiting block 9 can limit the jacking height of the air hood 7 so as to prevent the air hood 7 from falling off from the air injection pipes 6.
When the desulfurization and rich liquid is operated, the desulfurization and rich liquid enters the bottom of the regeneration tank 1 from the rich liquid inlet pipe 4, compressed air is introduced into the air injection spiral coil 5 from the air inlet pipe 3, is sprayed out along the air injection pipe 6, overcomes the water pressure and the gravity of the air hood 7, then lifts the air hood 7 up, is sprayed out along the gap between the air hood 7 and the air injection pipe 6, sprays the desulfurization and rich liquid to form bubbles, contacts the desulfurization and rich liquid to perform oxidation-reduction reaction, forms elemental sulfur, and obtains desulfurization lean liquid, thereby achieving the aim of regeneration of the desulfurization and rich liquid, and the desulfurization lean liquid is discharged from the lean liquid outlet 2 and returns to the desulfurization device to continue the desulfurization process of the coke oven gas. In the process, the outlet of compressed air, namely the upper end of the air injection pipe 6 is positioned in the air hood 7, when the air is ventilated, the air hood 7 is jacked up by air flow, and when the production is stopped or the compressed air is not fed in, the air hood 7 moves downwards under the action of water pressure and self gravity, so that the top of the air hood 7 is tightly attached to the upper port of the air injection pipe 6, the upper end of the air injection pipe 6 is sealed, and the desulfurization rich liquid can be prevented from entering the air injection pipe 6 and the air injection spiral coil 5, thereby preventing particulate matters in the desulfurization rich liquid from precipitating to block the air injection spiral coil 5, effectively avoiding the problem that the outlet of the compressed air is blocked, enabling the compressed air to be smoothly injected into the desulfurization rich liquid for a long time, and ensuring that the desulfurization rich liquid can be better regenerated; secondly, the jet spiral coil 5 is arranged at the lower part of the regeneration tank 1 and fills the cross section of the regeneration tank 1, and a plurality of jet pipes 6 are uniformly arranged along the length direction of the jet spiral coil 5, so that after compressed air is sequentially sprayed into the desulfurization rich liquid through the jet spiral coil 5 and the jet pipes 6, relatively uniform bubbles can be generated in the desulfurization rich liquid, the bubbles are uniformly distributed in the regeneration tank 1, no dead angle exists, the air bubbles can fully contact with the desulfurization rich liquid, the regeneration efficiency is higher, and the regeneration effect is better.
When the utility model is implemented, the top of the gas hood 7 is provided with the balancing weight 10, when the production is stopped or compressed air is not introduced, the gas hood 7 moves downwards under the action of water pressure and self gravity, so that the upper port of the gas injection pipe 6 is blocked, and when the utility model is used practically, the balancing weight 10 with a certain weight can be arranged, so that the gas hood 7 can be jacked up by the compressed air flow when the gas is ventilated, and when the gas is stopped, the gas hood 7 can be ensured to fall down quickly and smoothly due to the existence of the balancing weight 10, the desulfurization rich solution is prevented from flowing into the gas injection pipe 6 in the falling process of the gas hood 7, the compression force between the top of the gas hood 7 and the upper port of the gas injection pipe 6 is increased, and the desulfurization rich solution is prevented from flowing into the gas injection pipe 6 from the position between the top of the gas hood 7 and the upper port of the gas injection pipe 6.
The regeneration tank 1 below the jet spiral coil 5 is internally provided with a spray spiral coil 11, the bottom of the spray spiral coil 11 is uniformly provided with a plurality of spray pipes 12 along the length direction of the spray pipes, the spray direction of the spray pipes 12 faces the bottom of the regeneration tank 1, the desulfurization rich liquid is introduced into the spray spiral coil 11 from the rich liquid inlet pipe 4 and is sprayed out from the spray pipes 12, the spray pipes 12 are uniformly distributed on the spray spiral coil 11 and are uniformly distributed on the cross section of the regeneration tank 1, so that desulfurization rich liquid can be uniformly introduced into the regeneration tank 1 on one hand, and elemental sulfur precipitated at the bottom of the regeneration tank 1 can be uniformly sprayed on the other hand, all the precipitated elemental sulfur is flushed without dead angles, more suspended elemental sulfur is formed, more sulfur foams are formed after the sulfur foams are carried to the liquid level by bubbles, and the yield of subsequent sulfur paste is finally improved.
When the desulfurization rich liquid is sprayed out from the lower port of the liquid spraying pipe 12, the flow speed of the desulfurization rich liquid is accelerated due to the reduction of the cross-sectional area, so that the impact force during the spraying of the desulfurization rich liquid is improved, the elemental sulfur precipitated at the bottom of the regeneration tank 1 can be flushed to form more suspended elemental sulfur, more sulfur foam is formed after the elemental sulfur is carried to the liquid level by bubbles, and the yield of the subsequent sulfur paste is finally improved.
When the utility model is implemented, the gas hood 7 moves downwards under the action of water pressure and self gravity when the production is stopped or compressed air is not introduced, when the top of the gas hood 7 is tightly attached to the upper end of the gas spraying pipe 6, the gas hood plays a role in sealing to prevent the desulfurization rich liquid from entering the gas spraying pipe 6 and the gas spraying spiral pipe 11, but in the practical use process, the sealing gasket 13 is arranged at the top of the gas hood 7 to ensure the sealing performance between the top of the gas hood 7 and the upper end of the gas spraying pipe 6 because a certain gap is always formed between the top of the gas hood 7 and the upper end of the gas spraying pipe 6 for a long time, on one hand, precipitation is formed, the gas spraying spiral pipe 11 is gradually blocked, on the other hand, the effective ventilation area is reduced because the desulfurization rich liquid gathers in the gas spraying spiral pipe 11, the ventilation resistance is increased when ventilation is required, the ventilation amount of air is reduced, and the regeneration effect of the desulfurization rich liquid is certainly influenced because the sealing gasket 13 is arranged at the top of the gas hood 7 to ensure the sealing performance between the top of the gas hood 7 and the upper end of the gas spraying spiral pipe 6, and the gas spraying spiral pipe 11 is prevented from entering the desulfurization rich pipe.
The regeneration tank 1 is internally provided with a temperature sensor 14, the air inlet pipe 3 is communicated with a steam pipe 15, when the temperature of the desulfurization rich liquid is low, the reaction efficiency of the desulfurization rich liquid and air is also reduced, so that when the temperature of the desulfurization rich liquid is low, especially in cold winter, the temperature of the desulfurization rich liquid is monitored through the temperature sensor 14, if necessary, high-temperature steam can be introduced into the air inlet pipe 3 to form mixed gas with compressed air and heat the compressed air, and then the mixed gas enters the separation rich liquid, on one hand, the mixed gas reacts with the desulfurization rich liquid to obtain desulfurization lean liquid, on the other hand, the desulfurization rich liquid is heated, the temperature of the desulfurization rich liquid is increased, and further, the efficient regeneration of the desulfurization rich liquid is ensured.
The motor 16 is installed to the bottom of regeneration tank 1, is provided with stirring vane 17 after the output shaft of motor 16 stretches into in the regeneration tank 1, and when motor 16 starts, can drive stirring vane 17 rotation, drives desulfurization rich solution and rotates together when stirring vane 17 rotates and form the whirl, has two effects: firstly, the desulfurization rich liquid drives the bubbles to rotate together, and the rotational flow can increase the contact time of the bubbles and the desulfurization rich liquid, so that the hydrogen sulfide ions in the desulfurization rich liquid can fully react with oxygen in the compressed air, and the regeneration effect of the desulfurization rich liquid can be improved; secondly, when the stirring blade 17 rotates, large bubbles can be crushed to form small bubbles with smaller volume and more quantity, so that the contact area between the bubbles and the desulfurization rich liquid is increased, and the effect of improving the regeneration efficiency is achieved; thirdly, the rotational flow can prevent the precipitation of suspended elemental sulfur, so that the suspended elemental sulfur can be carried to the liquid level by bubbles to form a foam layer, the flotation efficiency of sulfur foam is improved, the suspended elemental sulfur can be separated out to the maximum extent, and the yield of subsequent sulfur paste is further improved.
Claims (7)
1. The regeneration device for the desulfurization rich liquid of the coke oven gas comprises a regeneration groove (1) and a lean liquid outlet (2) arranged on the upper portion of the regeneration groove (1), and is characterized in that an air inlet pipe (3) and a rich liquid inlet pipe (4) are arranged on the lower portion of the regeneration groove (1), an air injection spiral coil pipe (5) is arranged on the lower portion of the regeneration groove (1), the air inlet pipe (3) is communicated with the air inlet end of the air injection spiral coil pipe (5), a plurality of air injection pipes (6) are uniformly distributed on the top of the air injection spiral coil pipe (5) along the length direction of the air injection spiral coil pipe, an air hood (7) with an open lower end is sleeved on the air injection pipe (6), a limiting ring (8) is arranged on the inner wall of the open end of the air hood (7), and a limiting block (9) is arranged on the outer wall of the air injection pipe (6) above the limiting ring (8).
2. The regenerating device for the desulfurization rich liquid of the coke oven gas according to claim 1, wherein a balancing weight (10) is arranged at the top of the gas hood (7).
3. The regeneration device for the coke oven gas desulfurization rich liquid according to claim 1, wherein a liquid spraying spiral coil (11) is arranged in the regeneration groove (1) below the air spraying spiral coil (5), a plurality of liquid spraying pipes (12) are uniformly distributed at the bottom of the liquid spraying spiral coil (11) along the length direction of the liquid spraying spiral coil, and the liquid spraying direction of the liquid spraying pipes (12) faces to the bottom of the regeneration groove (1).
4. A regenerating device for a desulfurization rich liquid of coke oven gas according to claim 3, wherein the cross-sectional area of the inner wall of the liquid spraying pipe (12) is gradually decreased from top to bottom.
5. The regenerating device for the desulfurization rich liquid of the coke oven gas according to claim 1, wherein a sealing gasket (13) is arranged at the top part in the gas hood (7).
6. The regeneration device of the coke oven gas desulfurization rich liquid according to claim 1 is characterized in that a temperature sensor (14) is arranged in the regeneration tank (1), and a steam pipe (15) is communicated with the air inlet pipe (3).
7. The regenerating device for the desulfurization rich liquid of the coke oven gas according to claim 1, wherein a motor (16) is arranged at the bottom of the regenerating tank (1), and a stirring blade (17) is arranged after an output shaft of the motor (16) stretches into the regenerating tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321465833.6U CN220047721U (en) | 2023-06-09 | 2023-06-09 | Regeneration device for desulfurization rich liquid of coke oven gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321465833.6U CN220047721U (en) | 2023-06-09 | 2023-06-09 | Regeneration device for desulfurization rich liquid of coke oven gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220047721U true CN220047721U (en) | 2023-11-21 |
Family
ID=88764860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321465833.6U Active CN220047721U (en) | 2023-06-09 | 2023-06-09 | Regeneration device for desulfurization rich liquid of coke oven gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220047721U (en) |
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2023
- 2023-06-09 CN CN202321465833.6U patent/CN220047721U/en active Active
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