CN204999613U - Novel dry absorption device - Google Patents
Novel dry absorption device Download PDFInfo
- Publication number
- CN204999613U CN204999613U CN201520688103.1U CN201520688103U CN204999613U CN 204999613 U CN204999613 U CN 204999613U CN 201520688103 U CN201520688103 U CN 201520688103U CN 204999613 U CN204999613 U CN 204999613U
- Authority
- CN
- China
- Prior art keywords
- tower
- absorption
- acid
- groove
- dry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model discloses a dry absorbing device, this drying absorbing device include drying tower, first absorption tower and second absorption tower, the drying tower be the integrative drying tower in tower groove, first absorption tower and second absorption tower be the integrative absorption tower in tower groove respectively, one set of dry tower acid circulating device of drying tower exclusive use, first absorption tower and second absorption tower share same cover and absorb tower acid circulating device. The utility model discloses a dry absorbing device reduces the volume in drying tower pump groove and absorption tower pump groove, saving investment, and the energy saving reduces floor area, three towers all adopt candle formula fiber mist eliminator, have improved separation efficiency, have reduced acid mist content in the burner gas, reduce the influence to conversion workshop section catalyst activity, three towers all adopt the shape regular packing, have improved absorption efficiency and operating flexibility, and this specific surface who packs is very big, and the pressure drop is low, reduce the height of three towers, saving investment, energy saving.
Description
Technical field
The utility model relates to a kind of novel dried absorption unit, is specifically related to the Optimal improvements of drying in gas washing in SA production and absorption section technique.
Background technology
The acid-making process flow process of " double conversion and double absorption " is mostly adopted, containing SO in current gas washing in SA production
2, H
2o, the furnace gas of dirt etc. after purification section process, through the technological process of production of " twice conversion and twice absorption ".The major equipment of this dry absorption section has drying tower, the first absorption tower, second absorption tower, drying tower circulation groove, absorption tower circulation groove and supporting drying tower acid circulating pump, absorption tower acid circulating pump, three each self-forming of tower a set of independently recycle acid systems, dry recycle acid concentration is the 96%, first absorption tower and second absorption tower recycle acid concentration is 98%.In order to make dry tower acid dense and absorb tower acid dense maintenance running balance, phase mutual string acid between dehumidification system and absorption system.
Drying in above-mentioned " double conversion and double absorption " and absorption technique Technical comparing are ripe, application also commonplace, but it but also exists following problem: drying tower circulation groove, and the volumetric ratio of absorption tower circulation groove is comparatively large, thus floor space is large, invests larger; Drying tower and absorption tower all adopt common filler, and filler adopts the pattern huddled, and packed height is comparatively large, and increase the height of tower, assimilated efficiency is also lower, and the turndown ratio of tower is smaller; Drying tower mostly adopts mesh mist eliminator, and demisting efficiency is less, larger to the activity influence of conversion section catalyzer.Therefore need to design a kind of novel dried absorption unit.
Utility model content
The utility model is the Technology defect proposed for background technology, provides a kind of novel dried absorption unit, is optimized improvement to the dry absorption section technique in gas washing in SA production.Reduce the volume of drying tower pump groove and absorption tower pump groove, reduce investment outlay, save energy, reduce the floor space of equipment; Three towers all adopt candle formula fiber mist eliminator, improve demisting efficiency, reduce sulphuric acid mist content in furnace gas, reduce the impact on conversion section catalyst activity; Three towers all adopt Novel standardized packing, improve assimilated efficiency and turndown ratio, and the specific surface area of this filler is very large, and pressure drop is low; Reduce the height of three towers, reduce investment outlay, save energy.
This uses novel object to be achieved through the following technical solutions:
A kind of dry absorption unit, this dry absorption unit comprises drying tower, first absorption tower and second absorption tower, described drying tower is tower groove one drying tower, described tower groove one drying tower comprises drying tower tower body and is located at the drying tower tower groove bottom described drying tower tower body, the first described absorption tower and second absorption tower are respectively tower groove unitary absorbent tower, the first described absorption tower comprises the first absorption tower tower body and is located at the first absorbing tower groove bottom described first absorption tower tower body, described second absorption tower comprises second absorption tower tower body and is located at the second absorption tower tower groove bottom described second absorption tower tower body, described drying tower is used alone a set of dry tower acid circulation device, the first described absorption tower and second absorption tower share same set of absorption tower acid circulation device.
Preferably, described dry tower acid circulation device comprise be connected with the acid discharge mouth of described drying tower tower groove dry tower acid pump groove, be arranged on the drying tower acid cooler that dry tower acid pump in dry tower acid pump groove and inlet end be connected with dry tower acid pump, the exit end of described drying tower acid cooler is communicated with the acid trap being arranged on drying tower tower body internal upper part; Described dry tower acid pump is the sour opening in communication with the string be arranged on the first absorbing tower body sidewall also;
Described absorption tower acid circulation device comprise be connected with the acid discharge mouth of second absorption tower tower groove with the first absorbing tower groove respectively absorption tower acid pump groove, be arranged on the absorption tower acid cooler that absorption tower acid pump in described absorption tower acid pump groove and inlet end be connected with described absorption tower acid pump, the exit end of described absorption tower acid cooler is communicated with the acid trap being arranged on the first absorption tower tower body internal upper part and second absorption tower tower body internal upper part respectively, and described absorption tower acid pump is the sour opening in communication with the string be arranged on drying tower tower body sidewall also.
Further preferably: described drying tower tower groove and dry tower acid pump groove are arranged in same level.Described drying tower adopts tower groove one drying tower, concentrated acid in drying tower enters in dry tower acid pump groove through the acid discharge mouth gravity flow of drying tower tower trench bottom, drying tower tower groove, dry tower acid pump groove are arranged in same level, make full use of drying tower lower volume, reduce the volume of dry tower acid pump groove, reduce investment outlay, save energy, reduces the floor space of equipment.
The first described absorbing tower groove, second absorption tower tower groove and absorption tower acid pump groove are arranged in same level.In this dry absorption unit, the first absorption tower and second absorption tower are tower groove unitary absorbent tower, absorb SO
3after the vitriol oil enter through the acid discharge mouth of absorbing tower trench bottom and absorb in tower acid pump groove, be arranged on the first absorbing tower groove to be connected with absorption tower acid pump groove with the acid discharge mouth of second absorption tower tower trench bottom, produce acid and flow into absorption tower acid pump groove, absorbing tower groove, absorption tower acid pump groove are arranged in same level, make full use of absorption tower lower volume, reduce the volume absorbing tower acid pump groove, reduce investment outlay, save energy, reduces the floor space of equipment.
Further preferably: described in be arranged on the position of the string acid opening on drying tower tower body sidewall corresponding with the position of packing area in described drying tower tower body.Further preferred: described string acid opening to be positioned at bottom self filler district upwards 1/3 total thickness place, packing area.Improve mass-and heat-transfer efficiency.
Further preferably: described in be arranged on the position of the string acid opening on the first absorbing tower body sidewall corresponding with the position of packing area in described first absorption tower tower body.Further preferred: described string acid opening to be positioned at bottom self filler district upwards 1/3 total thickness place, packing area.Improve mass-and heat-transfer efficiency, the acid sealing in system from dry acid does not enter the acid crossflow port that absorption tower acid pump groove directly enters the first absorption tower, so both solve sulfur dioxide gas and absorb the problem that in acid, desorb brings exhaust emissions to exceed standard, decrease a desorption tower, simplify technical process.
Described drying tower, the first absorption tower and second absorption tower all adopt candle formula fiber mist eliminator.Improve demisting efficiency, reduce sulphuric acid mist content in furnace gas, reduce the impact on conversion section catalyst activity.
Preferably, in described drying tower tower body, the first absorption tower tower body and second absorption tower tower body, the filler of packing area all adopts conventional commercially available shape structured packing.Adopt shape structured packing, improve assimilated efficiency and turndown ratio, the specific surface area of this filler is very large, and pressure drop is low; Reduce the height of drying tower, the first absorption tower and second absorption tower, reduce investment outlay, save energy.
The beneficial effects of the utility model:
The dry absorption unit of the utility model design reduces the volume of drying tower pump groove and absorption tower pump groove, reduces investment outlay, and save energy, reduces the floor space of equipment; Three towers all adopt candle formula fiber mist eliminator, improve demisting efficiency, reduce sulphuric acid mist content in furnace gas, reduce the impact on conversion section catalyst activity; Three towers all adopt shape structured packing, improve assimilated efficiency and turndown ratio, and the specific surface area of this filler is very large, and pressure drop is low; Reduce the height of three towers, reduce investment outlay, save energy.
Accompanying drawing explanation
Fig. 1 is dry absorption unit structure iron
Embodiment
With embodiment, the utility model is further elaborated by reference to the accompanying drawings.
As shown in Figure 1, a kind of dry absorption unit, this dry absorption unit comprises drying tower, first absorption tower and second absorption tower, described drying tower is tower groove one drying tower, the drying tower tower groove 1 that described tower groove one drying tower comprises drying tower tower body 2 and is located at bottom described drying tower tower body 2, the first described absorption tower and second absorption tower are respectively tower groove unitary absorbent tower, the first absorbing tower groove 6 that the first described absorption tower comprises the first absorption tower tower body 7 and is located at bottom described first absorption tower tower body 7, the second absorption tower tower groove 12 that described second absorption tower comprises second absorption tower tower body 11 and is located at bottom described second absorption tower tower body 11, described drying tower is used alone a set of dry tower acid circulation device, the first described absorption tower and second absorption tower share same set of absorption tower acid circulation device.Described dry tower acid circulation device comprise be connected with the acid discharge mouth of described drying tower tower groove 1 dry tower acid pump groove 4, be arranged on the drying tower acid cooler 5 that dry tower acid pump 3 in dry tower acid pump groove 4 and inlet end be connected with dry tower acid pump 3, the exit end of described drying tower acid cooler 5 is communicated with the acid trap 13-3 being arranged on drying tower tower body 2 internal upper part; Described dry tower acid pump 3 is also connected with the string acid opening 14-1 be arranged on the first absorption tower tower body 7 sidewall.Described absorption tower acid circulation device comprises the absorption tower acid pump groove 9 be connected with the acid discharge mouth of second absorption tower tower groove 12 with the first absorbing tower groove 6 respectively, be arranged on the absorption tower acid cooler 10 that absorption tower acid pump 8 in described absorption tower acid pump groove 9 and inlet end are connected with described absorption tower acid pump 8, the exit end of described absorption tower acid cooler 10 is communicated with the acid trap (13-1 being arranged on the first absorption tower tower body 7 internal upper part and second absorption tower tower body 11 internal upper part respectively, 13-2), described absorption tower acid pump 8 is also connected with the string acid opening 14-2 be arranged on drying tower tower body 2 sidewall.
As a kind of optimal technical scheme: described drying tower tower groove 1 and dry tower acid pump groove 4 are arranged in same level.Described drying tower adopts tower groove one drying tower, the acid discharge mouth gravity flow of concentrated acid in drying tower bottom drying tower tower groove 1 enters in dry tower acid pump groove 4, drying tower tower groove 1, dry tower acid pump groove 4 are arranged in same level, make full use of drying tower lower volume, reduce the volume of dry tower acid pump groove 4, reduce investment outlay, save energy, reduces the floor space of equipment.
The first described absorbing tower groove 6, second absorption tower tower groove 12 and absorption tower acid pump groove 9 are arranged in same level.In this dry absorption unit, the first absorption tower and second absorption tower are tower groove unitary absorbent tower, absorb SO
3after the vitriol oil enter through the acid discharge mouth of absorbing tower trench bottom and absorb in tower acid pump groove 9, be arranged on the first absorbing tower groove 6 to be connected with absorption tower acid pump groove 9 with the acid discharge mouth bottom second absorption tower tower groove 12, produce acid and flow into absorption tower acid pump groove 9, absorbing tower groove, absorption tower acid pump groove 9 are arranged in same level, make full use of absorption tower lower volume, reduce the volume absorbing tower acid pump groove 9, reduce investment outlay, save energy, reduces the floor space of equipment.
The position of the described string acid opening 14-2 be arranged on drying tower tower body 2 sidewall is corresponding with the position of packing area 15-3 in described drying tower tower body 2, and the sour opening 14-2 of described string to be positioned at bottom self filler district 15-3 upwards 1/3 total thickness place, packing area.Improve mass-and heat-transfer efficiency.The position of the described string acid opening 14-1 be arranged on the first absorption tower tower body 7 sidewall is corresponding with the position of packing area 15-1 in described first absorption tower tower body 7, and the sour opening 14-1 of described string to be positioned at bottom self filler district 15-1 upwards 1/3 total thickness place, packing area.Improve mass-and heat-transfer efficiency, the acid sealing in system from dry acid does not enter the string acid opening that absorption tower acid pump groove directly enters the first absorption tower, so both solve sulfur dioxide gas desorb in absorption acid and bring exceeding standard of exhaust emissions, decrease a desorption tower, simplify technical process.
Described drying tower, the first absorption tower and second absorption tower all adopt candle formula fiber mist eliminator.Improve demisting efficiency, reduce sulphuric acid mist content in furnace gas, reduce the impact on conversion section catalyst activity.In described drying tower tower body 2, first absorption tower tower body 7 and second absorption tower tower body 11, the filler of packing area (15-3,15-1,15-2) all adopts the shape structured packing of conventional commercial.Adopt shape structured packing, improve assimilated efficiency and turndown ratio, the specific surface area of this filler is very large, and pressure drop is low; Reduce the height of drying tower, the first absorption tower and second absorption tower, reduce investment outlay, save energy.
During this dry absorption unit work, the furnace gas from purification section enters drying tower tower body 2, and furnace gas contacts at structured filling material layer with the concentrated acid under spray and carries out drying in drying tower tower body 2, enters conversion section afterwards after fiber mist eliminator; 96% vitriol oil is sprayed in drying tower tower body 2, generating concentration after absorbing the moisture content in furnace gas is approximately in the vitriol oil inflow drying tower tower groove 1 of 95.58%, flow in dry tower acid pump groove 4 by the acid discharge mouth bottom drying tower tower groove 1, send in drying tower acid cooler 5 by dry tower acid pump 3, deliver to after cooling in drying tower tower body 2 tower and spray via acid trap 13-3; In drying tower tower groove 1 recycle acid concentration by absorb tower acid pump groove 98% absorb acid regulate, maintain 96% recycle acid concentration.96% acid more than needed seals in the first absorption tower tower body 7 after absorption tower acid cooler 10 cools.
Furnace gas after once transforming, enter in the first absorption tower tower body 7, furnace gas contacts at structured filling material layer with the concentrated acid under spray and absorbs in the first absorption tower tower body 7, conversion section is entered afterwards through fiber mist eliminator, through the furnace gas of twice transformation, enter in second absorption tower tower body 11, furnace gas contacts at structured filling material layer with the concentrated acid under spray and absorbs in second absorption tower tower body 11, enters Wei Xi workshop section afterwards through fiber mist eliminator.All spray 98% vitriol oil in first absorption tower tower body 7 and second absorption tower tower body 11, absorb the SO in furnace gas
3respective tower groove (the first absorbing tower groove 6 is flowed into afterwards from tower body, second absorption tower tower groove 12), flowing into after the vitriol oil flowed out by the acid discharge mouth of the first absorbing tower groove 6 mixes with the vitriol oil that the acid discharge mouth by second absorption tower tower groove 12 flows out absorbs in tower acid pump groove 9, send into absorption tower acid cooler 10 by absorption tower acid pump 8, after cooling, send into the tower top spray of the first absorption tower tower body 7 and second absorption tower tower body 11.
Claims (10)
1. a dry absorption unit, it is characterized in that: this dry absorption unit comprises drying tower, first absorption tower and second absorption tower, described drying tower is tower groove one drying tower, described tower groove one drying tower comprises drying tower tower body and is located at the drying tower tower groove bottom described drying tower tower body, the first described absorption tower and second absorption tower are respectively tower groove unitary absorbent tower, the first described absorption tower comprises the first absorption tower tower body and is located at the first absorbing tower groove bottom described first absorption tower tower body, described second absorption tower comprises second absorption tower tower body and is located at the second absorption tower tower groove bottom described second absorption tower tower body, described drying tower is used alone a set of dry tower acid circulation device, the first described absorption tower and second absorption tower share same set of absorption tower acid circulation device.
2. dry absorption unit according to claim 1, is characterized in that:
Described dry tower acid circulation device comprise be connected with the acid discharge mouth of described drying tower tower groove dry tower acid pump groove, be arranged on the drying tower acid cooler that dry tower acid pump in dry tower acid pump groove and inlet end be connected with dry tower acid pump, the exit end of described drying tower acid cooler is communicated with the acid trap being arranged on drying tower tower body internal upper part; Described dry tower acid pump is the sour opening in communication with the string be arranged on the first absorbing tower body sidewall also;
Described absorption tower acid circulation device comprise be connected with the acid discharge mouth of second absorption tower tower groove with the first absorbing tower groove respectively absorption tower acid pump groove, be arranged on the absorption tower acid cooler that absorption tower acid pump in described absorption tower acid pump groove and inlet end be connected with described absorption tower acid pump, the exit end of described absorption tower acid cooler is communicated with the acid trap being arranged on the first absorption tower tower body internal upper part and second absorption tower tower body internal upper part respectively, and described absorption tower acid pump is the sour opening in communication with the string be arranged on drying tower tower body sidewall also.
3. dry absorption unit according to claim 2, is characterized in that: described drying tower tower groove and dry tower acid pump groove are arranged in same level.
4. dry absorption unit according to claim 2, is characterized in that: the first described absorbing tower groove, second absorption tower tower groove and absorption tower acid pump groove are arranged in same level.
5. dry absorption unit according to claim 2, is characterized in that: described in be arranged on drying tower tower body sidewall string acid opening position corresponding with the position of packing area in described drying tower tower body.
6. dry absorption unit according to claim 5, is characterized in that: described string acid opening to be positioned at bottom self filler district upwards 1/3 total thickness place, packing area.
7. dry absorption unit according to claim 2, is characterized in that: described in be arranged on the first absorbing tower body sidewall string acid opening position corresponding with the position of packing area in described first absorption tower tower body.
8. dry absorption unit according to claim 7, is characterized in that: described string acid opening to be positioned at bottom self filler district upwards 1/3 total thickness place, packing area.
9. dry absorption unit according to claim 1, is characterized in that: described drying tower, the first absorption tower and second absorption tower all adopt candle formula fiber mist eliminator.
10. dry absorption unit according to claim 1, is characterized in that: in described drying tower tower body, the first absorption tower tower body and second absorption tower tower body, the filler of packing area is structured packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520688103.1U CN204999613U (en) | 2015-09-07 | 2015-09-07 | Novel dry absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520688103.1U CN204999613U (en) | 2015-09-07 | 2015-09-07 | Novel dry absorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204999613U true CN204999613U (en) | 2016-01-27 |
Family
ID=55156510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520688103.1U Active CN204999613U (en) | 2015-09-07 | 2015-09-07 | Novel dry absorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204999613U (en) |
-
2015
- 2015-09-07 CN CN201520688103.1U patent/CN204999613U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102000486B (en) | Method for catching carbon dioxide in flue gas by active sodium carbonate and apparatus thereof | |
| CN101422691B (en) | Multi-pollutant removing technique and device of fuel coal smoke | |
| CN201333374Y (en) | Device capable of collecting carbon dioxide contained in flue gases of power plant through ammonia by utilizing void tower | |
| CN205650072U (en) | Dual cycle desulfurization absorption tower | |
| CN102872695A (en) | Method for sintering and desulfurizing enriched smoke to prepare sulfuric acid | |
| CN205570081U (en) | Two district's circulation desulfurization column equipment | |
| CN201441879U (en) | Melamine tail gas recovery tower | |
| CN215027203U (en) | Cyclone type waste gas washing tower | |
| CN202355997U (en) | CO2 absorption tower and low-temperature methanol washing equipment comprising same | |
| CN107297132A (en) | A kind of ionic liquid absorption cycle flue gas desulfurization device and its method | |
| CN102489120A (en) | Low temperature methanol wash method and equipment | |
| CN207153409U (en) | Efficient oxygen adsorption tower processed | |
| CN202007218U (en) | Wet-oxidation, desulfurization, absorption and reaction tower for natural gas | |
| CN204999613U (en) | Novel dry absorption device | |
| CN106076094A (en) | A kind of heat exchange liquid collector, desulphurization system and the method for single column Two-way Cycle wet desulphurization | |
| CN202506306U (en) | Novel ammonia process desulfurization absorption device | |
| CN106943850A (en) | A kind of multi-functional subregion ammonia desulfuration equipment | |
| CN101607168A (en) | Melamine tail gas treatment process and equipment | |
| CN201313032Y (en) | Limestone/lime-gypsum wet flue gas desulfurization device | |
| CN203963977U (en) | The ammonia desulfuration equipment of smoke treatment desulfurization band liquid | |
| CN203494395U (en) | Double-pH-value control circular desulfurization system | |
| CN102974210B (en) | Built-in double-chamber double-value wet type desulfurizing tower device | |
| CN202962223U (en) | Absorbing device used for urea production | |
| CN201959689U (en) | High-efficiency energy-saving washing tower | |
| CN204952602U (en) | Fog formula graphite falling liquid film absorber falls |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |