CN221182275U - Purification device for ion liquid desulfurization flue gas - Google Patents
Purification device for ion liquid desulfurization flue gas Download PDFInfo
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- CN221182275U CN221182275U CN202322486298.9U CN202322486298U CN221182275U CN 221182275 U CN221182275 U CN 221182275U CN 202322486298 U CN202322486298 U CN 202322486298U CN 221182275 U CN221182275 U CN 221182275U
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- flue gas
- tower
- turbulent
- filter
- purification device
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- 239000007788 liquid Substances 0.000 title claims abstract description 102
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000003546 flue gas Substances 0.000 title claims abstract description 59
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 20
- 230000023556 desulfurization Effects 0.000 title claims abstract description 20
- 238000000746 purification Methods 0.000 title claims abstract description 20
- 150000002500 ions Chemical class 0.000 title abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 72
- 238000011010 flushing procedure Methods 0.000 claims abstract description 38
- 238000005507 spraying Methods 0.000 claims abstract description 28
- 238000001914 filtration Methods 0.000 claims abstract description 24
- 239000007921 spray Substances 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000002608 ionic liquid Substances 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 239000002562 thickening agent Substances 0.000 claims description 13
- 239000000779 smoke Substances 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 17
- 239000000428 dust Substances 0.000 abstract description 13
- 239000002245 particle Substances 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 5
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 239000003595 mist Substances 0.000 description 8
- 238000003723 Smelting Methods 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model belongs to the technical field of flue gas purification, and particularly relates to a purification device for ion liquid desulfurization flue gas. The specific technical scheme is as follows: the device comprises a turbulent flushing tower, wherein a filtering mechanism is arranged at the bottom of the turbulent flushing tower, the filtering mechanism comprises a filtering cover which is arranged at the inner bottom of the turbulent flushing tower and is provided with an opening at the upper end, an adaptive filter screen is arranged at the top of the filtering cover, the bottom of the filtering cover is communicated with a washing liquid recycling pipe, the other end of the washing liquid recycling pipe is connected with a spraying device, and the spraying device is arranged at the upper part of the turbulent flushing tower. The washing liquid at the bottom of the turbulent flushing tower enters the filter cover after being filtered by the filter screen, then enters the spraying device from the filter cover through the washing liquid recycling pipe, and solid particles such as dust in the washing liquid at the bottom of the turbulent flushing tower are prevented from entering the spraying device through the washing liquid recycling pipe, so that the spraying device is blocked, and the normal use of the turbulent flushing tower is influenced.
Description
Technical Field
The utility model belongs to the technical field of flue gas purification, and particularly relates to a purification device for ion liquid desulfurization flue gas.
Background
The smelting process of the sulphide ore generates high-concentration sulfur dioxide flue gas and low-concentration sulfur dioxide ring-collecting flue gas, the high-concentration sulfur dioxide flue gas is used for preparing acid, and the low-concentration sulfur dioxide flue gas is discharged after dust removal and desulfurization. The flue gas generated in the smelting process is cooled by a wet method, dedusted and purified, and then enters the next working procedure for acid making or other processes for desulfurization. For the flue gas generated in the sulphide ore smelting process, the common absorption method is also called wet method, specifically, the dust-containing and sulphide gas flow directly impacts the liquid level to decompose and oxidize organic matters and make the organic matters escape in a gaseous state.
At present, the flue gas treatment device recycles the washing liquid in the turbulent wash tower, namely, the washing liquid at the bottom of the turbulent wash tower is pumped to the spraying device at the upper part of the turbulent wash tower again, but the washing liquid at the bottom of the turbulent wash tower is partially liquid after flue gas is washed, and solid impurities such as dust exist in the liquid, and if part of the liquid is directly introduced into the spraying device, the spraying device can be blocked, so that the normal use of the flue gas treatment device is affected.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a purification device for ionic liquid desulfurization flue gas.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: the utility model provides a purifier of ionic liquid desulfurization flue gas, includes the turbulent wash tower, turbulent wash tower bottom is provided with filtering mechanism, filtering mechanism is including setting up the filter mantle of bottom and upper end open-ended in the turbulent wash tower, the filter mantle top is provided with the filter screen of adaptation, its lower part and washing liquid retrieval and utilization pipe intercommunication, the washing liquid retrieval and utilization pipe other end is connected with spray set, spray set sets up in turbulent wash tower upper portion.
Preferably: the top of the filter cover is provided with a filter screen cover with a downward opening; the filter mesh of the filter screen cover is larger than that of the filter screen.
Preferably: the spraying device can be arranged in one group in the turbulent flushing tower or two or more groups in the vertical direction.
Preferably: a reverse spray pipe is arranged beside the turbulent flow tower, and a smoke inlet is arranged at the top of the reverse spray pipe; the bottom of the turbulent flushing tower is communicated with the lower part of the reverse jet pipe through a first pipeline, and washing liquid at the bottom of the turbulent flushing tower is sent to the lower part of the reverse jet pipe.
Preferably: the turbulent flushing tower is characterized in that a water collector and a silk screen demister are sequentially arranged at the top of the turbulent flushing tower and above the spraying device from bottom to top.
Preferably: a water collector washing device is arranged at the top of the turbulent flushing tower and between the water collector and the wire mesh demister; the top of the turbulent flushing tower and the upper part of the wire mesh demister are provided with a wire mesh demister washing device.
Preferably: and a flue gas outlet end pipeline at the top of the turbulent flushing tower is connected with an electric demister.
Preferably: and a flue gas outlet end pipeline of the electric demister is connected with an absorption tower.
Preferably: the bottom of the turbulent tower is connected with a thickener through a second pipeline.
Preferably: the clear liquid of the thickener enters a clear liquid storage tank, filter residues of the clear liquid enter a filter press, and the clear liquid of the filter press enters the clear liquid storage tank.
Compared with the prior art, the application has the following beneficial effects:
The bottom of the turbulent flushing tower is provided with a filtering mechanism, the filtering mechanism comprises a filtering cover which is arranged at the inner bottom of the turbulent flushing tower and is provided with an opening at the upper end, the top of the filtering cover is provided with an adaptive filtering net, the lower part of the filtering cover is communicated with a washing liquid recycling pipe, the other end of the washing liquid recycling pipe is connected with a spraying device, and the spraying device is arranged at the upper part of the turbulent flushing tower. A spray pump is arranged on the washing liquid recycling pipe. The washing liquid at the bottom of the turbulent flushing tower enters the filter cover after being filtered by the filter screen, then enters the spraying device from the filter cover through the washing liquid recycling pipe, and solid particles such as dust in the washing liquid at the bottom of the turbulent flushing tower are prevented from entering the spraying device through the washing liquid recycling pipe, so that the spraying device is blocked, and the normal use of the turbulent flushing tower is influenced.
Drawings
FIG. 1 is a schematic view of the overall structure of a treatment apparatus according to the present utility model;
Fig. 2 is a schematic structural view of the filtering mechanism of the present utility model.
In the figure: the device comprises a turbulent flushing tower 1, a spray pump 2, a turbulent flushing pump 3, a washing liquid discharge pump 4, a reverse spray pipe 5, a reverse spray pipe smoke inlet 6, a spray device 7, a water receiver 8, a water receiver washing device 9, a wire mesh demister 10, a wire mesh demister washing device 11, an electric demister 12, an absorption tower 13, an absorption tower smoke outlet 14, a thickener 15, a filter pressing pump 16, a filter press 17, filter residues 18, a clear liquid storage tank 19, a clear liquid pump 20, a filter cover 21, a filter screen 22, a filter screen cover 23 and a washing liquid recycling pipe 24.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The technical means used in the examples are conventional means well known to those skilled in the art unless otherwise indicated.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1-2, the utility model discloses a novel purification device for flue gas desulfurization by ionic liquid, which comprises a turbulent flow tower 1, wherein a filtering mechanism is arranged at the bottom of the turbulent flow tower 1 and comprises a filtering cover 21 which is arranged at the inner bottom of the turbulent flow tower 1 and is provided with an opening at the upper end, a filtering screen 22 which is matched with the filtering cover 21 is arranged at the top of the filtering cover 21, the lower part of the filtering cover is communicated with a washing liquid recycling pipe 24, the other end of the washing liquid recycling pipe 24 is connected with a spraying device 7, and the spraying device 7 is arranged at the upper part of the turbulent flow tower 1. The washing liquid recycling pipe 24 is provided with a spray pump 2. The washing liquid at the bottom of the turbulent flow tower 1 enters the filter cover 21 after being filtered by the filter screen 22, and then enters the spraying device 7 from the inside of the filter cover 21 through the washing liquid recycling pipe 24, so that solid particles such as dust in the washing liquid at the bottom of the turbulent flow tower 1 are prevented from entering the spraying device 7 through the washing liquid recycling pipe 24, thereby blocking the spraying device 7 and affecting the normal use of the turbulent flow tower 1.
According to a further technical scheme, a filter screen cover 23 with a downward opening is arranged at the top of the filter cover 21; the filter mesh opening of the filter screen cover 23 is larger than that of the filter screen 22. The washing liquid at the bottom of the turbulent flushing tower 1 firstly passes through the filter screen cover 23, the liquid in the filter screen cover 23 enters the filter screen cover 21 after passing through the filter screen 22, then enters the spraying device 7 through the washing liquid recycling pipe 24, the filter screen cover 23 is used for filtering particles with larger diameters, the filter screen 22 is used for further filtering particles with smaller diameters, and the filter screen 22 work simultaneously to protect the spraying device 7 from working normally.
According to a further technical scheme, one group of spraying devices 7 can be arranged in the turbulent tower 1 or two or more groups of spraying devices can be arranged in the vertical direction. The specific set number can be determined according to the flue gas flow or the concentration of impurities in the flue gas. The flue gas is in countercurrent contact with spray liquid from top to bottom of a spray device 7 in the turbulent flushing tower 1 for washing, and secondary washing of the flue gas is completed.
According to a further technical scheme, a reverse jet pipe 5 is arranged beside the turbulent flow tower 1, and a reverse jet pipe smoke inlet 6 is formed in the top of the reverse jet pipe 5; the bottom of the turbulent flow tower 1 is communicated with the lower part of the reverse spray pipe 5 through a first pipeline, and a turbulent flow pump 3 is arranged on the first pipeline to pump a washing liquid at the bottom of the turbulent flow tower 1 into the lower part of the reverse spray pipe 5.
According to a further technical scheme, a water receiver 8 and a wire mesh demister 10 are sequentially arranged at the top of the turbulent flushing tower 1 and above the spraying device 7 from bottom to top.
According to a further technical scheme, a water receiver washing device 9 is arranged at the top of the turbulent flushing tower 1 and between the water receiver 8 and the wire mesh demister 10; a wire mesh mist eliminator washing device 11 is arranged at the top of the turbulent flushing tower 1 and above the wire mesh mist eliminator 10. The water collector washing device 9 is connected with high-pressure clean water for regularly flushing the water collector 8, so that the water collector 8 is ensured to be clean, and the water removal and dust removal efficiency is ensured. The high-pressure clean water is connected into the washing device 11 of the silk screen mist eliminator, so that the silk screen mist eliminator 10 is regularly washed, the cleaning of the silk screen mist eliminator 10 is ensured, and the mist removal and dust removal efficiency is ensured.
According to a further technical scheme, a flue gas outlet end pipe at the top of the turbulent flow tower 1 is connected with an electric demister 12. When the device is used, the flue gas is subjected to primary washing at the reverse spray pipe 5, is subjected to secondary washing at the turbulent flow tower 1 through the spray device 7, and enters the absorption tower 13 after the flue gas cleanliness is guaranteed through water removal, dust removal and demisting, so that the final purification treatment is completed.
According to a further technical scheme, a flue gas outlet end of the electric demister 12 is connected with an absorption tower 13 in a pipeline manner, so that impurities in flue gas are further purified.
According to a further technical scheme, the bottom of the turbulent flushing tower 1 is connected with a thickener 15 through a second pipeline. The clear liquid of the thickener 15 enters a clear liquid storage tank 19, filter residues 18 thereof enter a filter press 17, and the clear liquid of the filter press 17 enters the clear liquid storage tank 19. During operation, the used washing liquid flows to the thickener 15 through the washing liquid discharge pump 4, after the washing liquid is concentrated in the thickener 15, overflow clear liquid enters the clear liquid storage tank 19, sediment bottom liquid is pumped into the filter press 17, and sediment bottom liquid of the thickener 15 is pumped into the filter press 17 through the filter press pump 16 for solid-liquid separation. After being subjected to filter pressing by a filter press 17, filter residues 18 are recycled, and clear liquid enters a clear liquid storage tank 19.
The working process of the novel purification device for the ionic liquid desulfurization flue gas comprises the following steps: the spray pump 2 and the turbulent pump 3 are started, the flue gas enters the reverse spray pipe 5 from the flue gas inlet 6 of the reverse spray pipe, the turbulent pump 3 sends the washing liquid to the reverse spray pipe 5, in the reverse spray pipe 5, the flue gas collides with the washing liquid to generate a foam area, in the foam area, the gas contacts with the surface of the washing liquid which is continuously updated in a large area, the washing liquid washes solid particles in the flue gas, the first cooling and washing of the flue gas are carried out on the smoke dust in the flue gas, the first cooling and washing of the flue gas are completed, the flue gas and the washing liquid enter the lower part of the turbulent tower 1 to carry out gas-liquid separation after the first-stage washing of the flue gas by the reverse spray pipe 5, the washing liquid falls into the bottom of the turbulent tower 1 to be continuously recycled or discharged, the spray pump 2 sends the washing liquid to the spray device 7, the spray device 7 sprays the washing liquid downwards, the flue gas contacts with the spraying liquid of the spray device 7 from bottom to top to bottom in the foam area, the secondary washing of the flue gas is completed, and the flue gas enters the absorption tower from top to bottom to the absorption tower through the water collector 8, the wire mesh mist eliminator 10 and the electric mist eliminator 12 to remove dust and water, and the flue gas enters the absorption tower to be treated by the absorption liquid through the turbulent tower.
The washing liquid is sent into the thickener 15 by the washing liquid discharge pump 4, after the washing liquid is concentrated in the thickener 15, overflowed clear liquid enters the clear liquid storage tank 19, the liquid discharged from the bottom of the thickener 15 is pumped into the filter press 17 by the filter press pump 16 for solid-liquid separation, after the liquid is filtered by the filter press, the filter residue 18 is recycled, the clear liquid enters the clear liquid storage tank 19, the clear liquid is sent into the turbulent washing tower by the clear liquid pump 20 for recycling, the washing liquid is supplemented, the washing liquid is replaced in time, the replacement amount of the washing liquid is increased, and the washing efficiency is ensured. When the clear liquid in the clear liquid storage tank 19 reaches a certain liquid level and the turbulent flushing tower 1 does not need to be replenished or replaced, the clear liquid discharging pump 20 is started, and the clear liquid in the clear liquid storage tank 19 is sent to the next working procedure for treatment.
After the primary and secondary washing of the flue gas is completed, the purification device of the application performs dust removal, water removal and demisting on the smelting flue gas to the greatest extent after the dust removal, water outlet and demisting are performed through the water collector 8, the wire mesh demister 10 and the electric demister 12, so that the flue gas cleanliness of the flue gas entering the ionic liquid absorption system is ensured, and the stable operation of the absorption tower 13 is ensured.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications, variations, alterations, substitutions made by those skilled in the art to the technical solution of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.
Claims (10)
1. The utility model provides a purifier of ionic liquid desulfurization flue gas which characterized in that: including turbulent wash tower (1), turbulent wash tower (1) bottom is provided with filtering mechanism, filtering mechanism is including setting up bottom and upper end open-ended filter mantle (21) in turbulent wash tower (1), filter mantle (21) top is provided with filter screen (22) of adaptation, and its lower part and washing liquid retrieval and utilization pipe (24) communicate, washing liquid retrieval and utilization pipe (24) other end is connected with spray set (7), spray set (7) set up on turbulent wash tower (1) upper portion.
2. The purification device for flue gas desulfurization by using ionic liquid according to claim 1, wherein: the top of the filter cover (21) is provided with a filter screen cover (23) with a downward opening; the filter mesh opening of the filter screen cover (23) is larger than that of the filter screen (22).
3. The purification device for flue gas desulfurization by using ionic liquid according to claim 1, wherein: the spraying device (7) can be arranged in one group in the turbulent tower (1) or two or more groups in the vertical direction.
4. The purification device for flue gas desulfurization by using ionic liquid according to claim 2, wherein: a reverse spray pipe (5) is arranged beside the turbulent flow tower (1), and a reverse spray pipe smoke inlet (6) is arranged at the top of the reverse spray pipe (5); the bottom of the turbulent flushing tower (1) is communicated with the lower part of the reverse jet pipe (5) through a first pipeline, and washing liquid at the bottom of the turbulent flushing tower (1) is sent to the lower part of the reverse jet pipe (5).
5. The purification device for flue gas desulfurization by using an ionic liquid according to claim 4, wherein: the top of the turbulent flushing tower (1) is positioned above the spraying device (7), and a water collector (8) and a wire mesh demister (10) are sequentially arranged from bottom to top.
6. The purification device for flue gas desulfurization by using ionic liquid according to claim 5, wherein: a water receiver washing device (9) is arranged at the top of the turbulent flushing tower (1) and between the water receiver (8) and the silk screen demister (10); a wire mesh demister washing device (11) is arranged at the top of the turbulent flushing tower (1) and above the wire mesh demister (10).
7. The purification device for flue gas desulfurization by using ionic liquid according to claim 1, wherein: the flue gas outlet end pipeline at the top of the turbulent flushing tower (1) is connected with an electric demister (12).
8. The purification device for flue gas desulfurization by using an ionic liquid according to claim 7, wherein: and a flue gas outlet end pipeline of the electric demister (12) is connected with an absorption tower (13).
9. The purification device for flue gas desulfurization by using ionic liquid according to claim 1, wherein: the bottom of the turbulent flushing tower (1) is connected with a thickener (15) through a second pipeline.
10. The purification device for flue gas desulfurization by using ionic liquid according to claim 9, wherein: the clear liquid of the thickener (15) enters a clear liquid storage tank (19), filter residues of the clear liquid enter a filter press (17), and the clear liquid of the filter press (17) enters the clear liquid storage tank (19).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221182275U true CN221182275U (en) | 2024-06-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |