CN215782608U - Drying absorption tower for sulfuric acid production - Google Patents
Drying absorption tower for sulfuric acid production Download PDFInfo
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- CN215782608U CN215782608U CN202121837522.9U CN202121837522U CN215782608U CN 215782608 U CN215782608 U CN 215782608U CN 202121837522 U CN202121837522 U CN 202121837522U CN 215782608 U CN215782608 U CN 215782608U
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- sulfuric acid
- pipe
- tower body
- gas
- liquid
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- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000001035 drying Methods 0.000 title claims abstract description 30
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 238000005507 spraying Methods 0.000 claims abstract description 34
- 238000012856 packing Methods 0.000 claims abstract description 26
- 238000003860 storage Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 65
- 238000009826 distribution Methods 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 4
- 235000011149 sulphuric acid Nutrition 0.000 claims description 2
- 239000001117 sulphuric acid Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 4
- 238000012824 chemical production Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 49
- 230000000694 effects Effects 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a drying absorption tower for sulfuric acid production, which is used for drying and absorbing tail gas generated in the sulfuric acid production and belongs to the technical field of chemical production equipment, and comprises a tower body, wherein a concentrated sulfuric acid storage cavity, a packing layer and a wire mesh demister are sequentially arranged in the tower body from bottom to top; the drying absorption tower provided by the utility model can uniformly disperse gas, SO that the gas is fully contacted with concentrated sulfuric acid, the efficiency of drying moisture in the gas and absorbing SO3 is improved, meanwhile, the spraying mechanism is arranged above the wire mesh demister to carry out reverse spraying and washing, impurities attached to the wire mesh demister can be cleaned, and the wire mesh demister is prevented from being blocked.
Description
Technical Field
The utility model belongs to the technical field of chemical production equipment, and particularly relates to a device for drying and absorbing tail gas generated in a sulfuric acid production process.
Background
Sulfuric acid productionIn the process of production, it contains SO2Drying and SO of flue gases3The absorption of flue gas is two important steps, because the two steps use concentrated sulfuric acid as absorbent, the drying and absorption equipment is an acid-proof packed tower for spraying concentrated sulfuric acid, the drying of water content in flue gas and SO3The absorption in the packed tower is carried out in the same process principle, so that in the engineering design, the drying tower and the absorption tower in the sulfuric acid production process have almost the same structure, and can be designed into a tower for general use, thereby facilitating the production management and reducing the production and operation cost.
When the traditional drying absorption tower is used for drying gas, the gas is usually introduced into a sulfuric acid pool to dry the gas, and the gas cannot be fully contacted with sulfuric acid in such a way, SO that the drying effect of the gas on moisture and the drying effect on SO are reduced3While on SO3The gas-liquid separation needs to be carried out by using the wire mesh demister after the flue gas is absorbed, and the wire mesh demister is not easy to clean and easy to block after long-term use, so that the production and processing efficiency of enterprises is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: provides a drying absorption tower for sulfuric acid production, which can uniformly disperse gas, fully contact the gas with concentrated sulfuric acid and improve the moisture drying and SO in the gas3Absorptive efficiency sets up simultaneously above the silk screen demister and sprays the mechanism and carry out the back spray to it and wash, can be with adnexed impurity clean up on the silk screen demister to avoid the silk screen demister to take place to block up.
The technical scheme adopted by the utility model is as follows:
in order to achieve the purpose, the utility model provides a drying absorption tower for sulfuric acid production, which comprises a tower body, wherein a concentrated sulfuric acid storage cavity, a packing layer and a wire mesh demister are sequentially arranged in the tower body from bottom to top, an air inlet is arranged on the side surface of the lower part of the tower body and is communicated with an air inlet pipe, an air outlet end of the air inlet pipe extends into the concentrated sulfuric acid storage cavity, a gas dispersing mechanism for stirring gas is arranged between the concentrated sulfuric acid storage cavity and the packing layer, spraying mechanisms are arranged between the packing layer and the wire mesh demister and above the wire mesh demister, and the spraying mechanisms are communicated with the concentrated sulfuric acid storage cavity through a conveying pipeline.
Preferably, the gas dispersion mechanism comprises a motor, a rotating shaft and dispersion blades, the motor is arranged at the bottom of the tower body, the rotating shaft is connected with the output end of the motor and is vertically arranged in the tower body, the dispersion blades are uniformly distributed around the circumference of the rotating shaft, and the dispersion blades are provided with a plurality of layers.
Preferably, the dispersing blades have a crescent shape curved upward.
Preferably, a liquid guide ring is arranged on the inner wall of the tower body below the packing layer.
Preferably, the top of the tower body is positioned above the spraying mechanism of the wire mesh demister, and an activated carbon filter layer is further arranged on the top of the tower body.
Preferably, the spraying mechanism above the silk screen demister is communicated with a liquid delivery main pipe through a first liquid distribution pipe, the spraying mechanism between the packing layer and the silk screen demister is communicated with the liquid delivery main pipe through a second liquid distribution pipe, the liquid delivery main pipe is communicated with one end of a liquid delivery pipe through a water pump, and the other end of the liquid delivery pipe is communicated with a concentrated sulfuric acid storage cavity at the bottom of the tower body.
Preferably, the spraying mechanism comprises a spraying pipe and an atomizing nozzle, the spraying pipe is communicated with the first liquid distribution pipe or the second liquid distribution pipe, and the atomizing nozzle is uniformly arranged at the bottom of the spraying pipe.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
1. according to the utility model, the gas dispersing mechanism is arranged, the flow of gas is accelerated by utilizing the rotation of the dispersing blades, the gas is uniformly dispersed in the cavity, and the crescent dispersing blades which are bent upwards can guide the gas upwards, so that the contact between the gas and concentrated sulfuric acid is accelerated, and the drying and absorption efficiency of the gas is improved.
2. According to the utility model, the spraying mechanism is arranged above the wire mesh demister, so that after the wire mesh demister is used for a long time, the spraying mechanism above the wire mesh demister can be started to carry out reverse spraying and washing on the wire mesh demister, impurities attached to the wire mesh demister are cleaned, and therefore, the wire mesh demister is prevented from being blocked, and the operation and production efficiency of equipment are ensured.
3. According to the utility model, the liquid guide ring is arranged on the inner wall of the tower body below the packing layer, and the liquid can continuously flow downwards after being sprayed to the packing layer, so that the liquid can easily flow along the inner wall of the tower body after flowing to the lower part of the packing layer, and thus the liquid cannot be fully contacted with the gas.
4. According to the utility model, the activated carbon adsorption layer is further arranged at the top of the tower body, so that the gas after being dried and absorbed can be further filtered, peculiar smell and harmful substances in the gas can be effectively removed, and the cleanliness of the gas is improved.
Drawings
The utility model will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of the present invention.
Labeled as: 1-a tower body, 2-a concentrated sulfuric acid storage cavity, 3-an air inlet, 4-an air inlet pipe, 5-a gas dispersion mechanism, 501-a motor, 502-a rotating shaft, 503-a dispersion paddle, 6-a liquid guide ring, 7-a packing layer, 8-a spray mechanism, 801-an atomizing pipe, 802-an atomizing nozzle, 9-a silk screen demister, 10-an active carbon filter layer, 11-a first liquid distribution pipe, 12-a second liquid distribution pipe, 13-a liquid delivery header pipe, 14-a valve, 15-a water pump, 16-a liquid delivery pipe and 17-an acid adding port.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, this embodiment provides a drying absorption tower for sulphuric acid production, including tower body 1, from the bottom up has set gradually concentrated sulfuric acid storage chamber 2, packing layer 7 and silk screen demister 9 in the tower body 1, be equipped with on the concentrated sulfuric acid storage chamber 2 and add sour mouthful 17 and be used for inwards adding the concentrated sulfuric acid, 1 lower part side of tower body is equipped with air inlet 3, air inlet 3 and intake pipe 4 intercommunication, the end of giving vent to anger of intake pipe 4 stretches into in the concentrated sulfuric acid storage chamber 2, be provided with the gas dispersion mechanism 5 that stirs gas between concentrated sulfuric acid storage chamber 2 and the packing layer 7, packing layer 7 and silk screen demister 9 between 9 and silk screen demister all are provided with and spray mechanism 8, spray mechanism 8 and pass through pipeline and concentrated sulfuric acid storage chamber 2 intercommunication.
When the gas storage tank is used, gas is introduced into the gas inlet pipe 4, the gas can enter the concentrated sulfuric acid storage cavity 2 to be contacted with the concentrated sulfuric acid because the gas inlet pipe 4 extends into the concentrated sulfuric acid storage cavity 2, the liquid concentrated sulfuric acid absorbs moisture and SO3 in the gas, the gas is dried and absorbed in advance, then the gas is blown out of the liquid level to enter the cavity below the packing layer 7, in the cavity, the gas dispersing mechanism 5 has the function of stirring and dispersing, so that the gas can be uniformly dispersed in the cavity, the gas continuously goes upward to be in contact with a liquid film formed on the packing layer 7, the liquid film provides a sufficient contact surface for the gas phase and the liquid phase, the drying and absorbing effects on the gas are further improved, and finally the gas is discharged after being subjected to gas-liquid separation through the wire mesh demister 9 above; simultaneously, in order to prevent that screen demister 9 from taking place to block up after using for a long time, can start 8 that spray of screen demister 9 top and carry out the back spray to screen demister 9 and wash, with impurity clean up, avoid screen demister 9 to take place to block up to guarantee equipment operation and production efficiency.
Example 2
In this embodiment, on the basis of embodiment 1, it is further preferable that the gas dispersing mechanism 5 includes a motor 501, a rotating shaft 502 and dispersing blades 503, the motor 501 is disposed at the bottom of the tower body 1, the rotating shaft 502 is connected to an output end of the motor 501 and is vertically disposed in the tower body 1, the dispersing blades 503 are uniformly distributed around a circumference of the rotating shaft 502, the dispersing blades 503 are disposed in multiple layers, and further, the dispersing blades 503 are in a crescent shape that is bent upwards.
When using, dispersion paddle 503 drives through pivot 502 and rotates in the cavity, can accelerate gaseous flow, makes gaseous dispersion even simultaneously, and the crescent design of kickup can play the effect of the water conservancy diversion that makes progress to gas for the contact of gas and concentrated sulfuric acid improves gas drying and absorption efficiency.
Example 3
In this embodiment, it is further preferable that, on the basis of embodiment 1, a liquid guide ring 6 is arranged on the inner wall of the tower body 1 below the packing layer 7; because liquid spouts can continue down to flow after 7 packing layers, flows to 7 below back easy along 1 inner walls of tower body as liquid to flow to unable and gaseous abundant contact, and through setting up liquid water conservancy diversion ring 6, can gather together the liquid after 7 packing layers, has avoided liquid along 1 inner walls of tower body drainage all around, guarantees dry and the absorption to gas.
Example 4
In this embodiment, it is further preferable that, on the basis of embodiment 1, the top of the tower body 1 is located above the spraying mechanism 8 of the wire mesh demister 9 and is further provided with an activated carbon filter layer 10; in this embodiment, through further setting up the active carbon adsorption layer at tower body 1 top, can further filter the gas after the dry absorption, get rid of peculiar smell and harmful substance in the gas effectively, improve gaseous cleanliness factor.
Example 5
This embodiment is further preferred on embodiment 1's basis, the spraying mechanism 8 of silk screen demister 9 top is through first minute liquid pipe 11 and liquid delivery house steward 13 intercommunication, spraying mechanism 8 between packing layer 7 and the silk screen demister 9 is through second minute liquid pipe 12 and liquid delivery house steward 13 intercommunication, liquid delivery house steward 13 passes through water pump 15 and 16 one end intercommunication of transfer line, the concentrated sulfuric acid storage chamber 2 of the 16 other end intercommunication tower body 1 bottoms of transfer line, all be provided with valve 14 alone on first minute liquid pipe 11, second minute liquid pipe 12, liquid delivery house steward 13 and the transfer line 16, conveniently control the pipeline respectively.
In this embodiment, the liquid in concentrated sulfuric acid storage cavity 2 passes through water pump 15 pump and goes into liquid delivery house steward 13, sends liquid into the spraying mechanism 8 above silk screen demister 9 through first liquid distribution pipe 11, sends liquid into the spraying mechanism 8 above packing layer 7 through second liquid distribution pipe 12, and liquid is again through spraying mechanism 8 blowout, carries out dry absorption to gas to and wash silk screen demister 9.
In addition, because packing layer 7 and the 8 independent connecting tube of mechanism that sprays of mechanism 8 above silk screen demister 9, also can realize washing of silk screen demister 9 in operation, need not shut down, during concrete operation, only need open the valve 14 on the first minute liquid pipe 11 that the mechanism 8 is connected sprays above silk screen demister 9, make liquid get into first minute liquid pipe 11, can realize washing spraying of silk screen demister 9, need not shut down the operation, realize the continuity of production.
Example 6
In this embodiment, it is further preferable that the spraying mechanism 8 includes a spraying pipe 801 and an atomizing nozzle 802, the spraying pipe 801 is communicated with the first branch pipe 11 or the second branch pipe 12, and the atomizing nozzle 802 is uniformly disposed at the bottom of the spraying pipe 801.
In this embodiment, the concentrated sulfuric acid liquid is introduced into the spraying pipe 801 through the first liquid distribution pipe 11 or the second liquid distribution pipe 12, and then is sprayed out from the atomizing nozzle 802, so that the liquid can be uniformly sprayed out by using the atomizing nozzle 802, the liquid is atomized, the contact area between the liquid and the gas is increased, and the drying and absorption effects of the gas are improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not cause the essence of the corresponding technical solution to depart from the scope of the technical solution of the embodiments of the present invention, and are intended to be covered by the claims and the specification of the present invention.
Claims (7)
1. The utility model provides a drying absorption tower is used in sulphuric acid production, includes tower body (1), concentrated sulfuric acid storage chamber (2), packing layer (7) and silk screen demister (9) have set gradually from the bottom up in tower body (1), a serial communication port, tower body (1) lower part side is equipped with air inlet (3), air inlet (3) and intake pipe (4) intercommunication, the end of giving vent to anger of intake pipe (4) stretches into in concentrated sulfuric acid storage chamber (2), be provided with between concentrated sulfuric acid storage chamber (2) and packing layer (7) and carry out gaseous dispersion mechanism (5) that stir to gas, packing layer (7) and silk screen demister (9) between and silk screen demister (9) top all are provided with spray mechanism (8), spray mechanism (8) are through pipeline and concentrated sulfuric acid storage chamber (2) intercommunication.
2. The drying absorption tower for the sulfuric acid production according to claim 1, wherein the gas dispersing mechanism (5) comprises a motor (501), a rotating shaft (502) and dispersing blades (503), the motor (501) is arranged at the bottom of the tower body (1), the rotating shaft (502) is connected with the output end of the motor (501) and is vertically arranged in the tower body (1), the dispersing blades (503) are uniformly distributed around the circumference of the rotating shaft (502), and the dispersing blades (503) are arranged in multiple layers.
3. The drying absorption tower for sulfuric acid production according to claim 2, wherein the dispersing blades (503) are in the shape of a crescent curved upward.
4. The drying absorption tower for the sulfuric acid production according to claim 1, wherein a liquid guide ring (6) is arranged on the inner wall of the tower body (1) below the packing layer (7).
5. The drying absorption tower for the sulfuric acid production according to claim 1, wherein the top of the tower body (1) is provided with an activated carbon filter layer (10) above the spraying mechanism (8) of the wire mesh demister (9).
6. The drying absorption tower for the sulfuric acid production according to claim 1, wherein the spraying mechanism (8) above the screen demister (9) is communicated with a liquid delivery main pipe (13) through a first liquid distribution pipe (11), the spraying mechanism (8) between the packing layer (7) and the screen demister (9) is communicated with the liquid delivery main pipe (13) through a second liquid distribution pipe (12), the liquid delivery main pipe (13) is communicated with one end of a liquid delivery pipe (16) through a water pump (15), and the other end of the liquid delivery pipe (16) is communicated with a concentrated sulfuric acid storage cavity (2) at the bottom of the tower body (1).
7. The drying absorption tower for sulfuric acid production according to claim 6, wherein the spraying mechanism (8) comprises a spraying pipe (801) and an atomizing nozzle (802), the spraying pipe (801) is communicated with the first liquid distribution pipe (11) or the second liquid distribution pipe (12), and the atomizing nozzle (802) is uniformly arranged at the bottom of the spraying pipe (801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121837522.9U CN215782608U (en) | 2021-08-06 | 2021-08-06 | Drying absorption tower for sulfuric acid production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121837522.9U CN215782608U (en) | 2021-08-06 | 2021-08-06 | Drying absorption tower for sulfuric acid production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215782608U true CN215782608U (en) | 2022-02-11 |
Family
ID=80129128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121837522.9U Active CN215782608U (en) | 2021-08-06 | 2021-08-06 | Drying absorption tower for sulfuric acid production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215782608U (en) |
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2021
- 2021-08-06 CN CN202121837522.9U patent/CN215782608U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231106 Address after: 352100 No.89 minhai Road, Zhangwan Town, Jiaocheng District, Ningde City, Fujian Province Patentee after: China copper southeast Copper Co.,Ltd. Address before: 622656 group 1, Donglin village, JuShui Town, Anzhou District, Mianyang City, Sichuan Province Patentee before: Mianyang xiangtaiyang Chemical Co.,Ltd. |
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| TR01 | Transfer of patent right |