CN203253350U - Renewable organic amine circulating desulfurization purifying tower - Google Patents
Renewable organic amine circulating desulfurization purifying tower Download PDFInfo
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- CN203253350U CN203253350U CN 201320255025 CN201320255025U CN203253350U CN 203253350 U CN203253350 U CN 203253350U CN 201320255025 CN201320255025 CN 201320255025 CN 201320255025 U CN201320255025 U CN 201320255025U CN 203253350 U CN203253350 U CN 203253350U
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Abstract
The utility model discloses a renewable organic amine circulating desulfurization purifying tower. The upper space of a tower cavity of a glass reinforced plastic tower body is set as a spraying area; the upper part of the spraying area is provided with a spraying device and a demister; a smoke outlet is formed in the top surface of the tower cavity; a smoke inlet, a process water inlet and an organic amine feeding port are formed in the side wall of the tower body; the inner lower part of the tower cavity is provided with a slurry area; the slurry area is divided into a cold area and a hot area by a partition plate; the hot area receives high-temperature slurry at 60 DEG C after smoke washing; the cold area receives low-temperature slurry at 43 DEG C after heat exchange; through continuous heat absorption and release, the slurry temperature is maintained below the volatilization temperature of organic amine, and the escape of organic amine can be effectively reduced; and meanwhile, the slurry is controlled in the best SO2 absorption temperature interval, the desulfurization efficiency can be greatly improved, and the exchanged heat can be used as a heat source for the follow-up desorption and regeneration of organic amine.
Description
Technical field
The utility model belongs to the gas cleaning environmental protection equipment.
Background technology
China is in the world first consumption of coal state, and first sulfur dioxide (SO2) emissions state also is the most serious country of in the world atmosphere pollution and the third-largest Acid Rain Zone in the world.The present atmosphere pollution of China belongs to typical coal-smoke pollution, and atmosphere pollution mainly is sulfur dioxide, overall suspended pellet and nitrogen oxide.Serious atmosphere pollution causes the generation of China's atmospheric environmental security problem, and the people's healthy, ecological environment, economic development, social progress caused appreciable economic loss.Therefore control SO
2Discharging be the primary goal of national air contaminant treatment always.
Present amine process flue gas desulfurization is a kind of desulfurizer regeneration type flue gas desulfurization technique, has the desulfuration efficiency height, and absorbent is renewable, SO
2Can recycle, not produce the advantages such as secondary pollution, good development prospect is arranged.Present amine process flue gas desulfurization device is comprised of water scrubber, absorption tower, regenerator, heat exchanger, process pump etc.Its technological process is that flue gas at first enters the water washing dedust tower, enters the absorption tower after the dedusting cooling in tower, removes SO with the desulfurization solvent counter current contacting in the absorption tower
2, the flue gas after the purification meets environmental protection standard, sends flue or directly discharging back to.Absorb SO
2After rich solution after the laggard solution heat exchanger heat exchange of pressurizeing, enter tower, in tower, by steam stripping, and be heated to be hot lean solution through reboiler.Hot lean solution enters the absorption tower again through the laggard lean pump pressurization of heat exchange after the cooling of lean solution cooler, circulation absorbs SO
2The SO that parses from regenerator
2Purity reaches more than 99% after cooling, separation, can be used as sulfuric acid, liquid SO
2Or needed raw material in the sulphur production.
Present amine process flue gas desulfurization device and complex process, floor space is large, and operating cost is high.
The utility model content
The purpose of this utility model is to overcome existing amine process flue gas desulfurization device complex process, and floor space is large, the deficiency that operating cost is high, and the utility model provides a kind of renewable organic amine circulation desulfurization purifying column of integral type.
A kind of renewable organic amine circulation desulfurization purifying column is characterized in that, it comprises a tower body of being made by fiberglass; Tower chamber upper space is made as the spray district, and the spray district arranges spray equipment and demister in top, and tower chamber end face arranges exhanst gas outlet, and the tower body sidewall arranges gas approach, fresh water (FW) import and organic amine charge door near spray district bottom position; The bottom is the slurries district in the tower chamber, and the slurries district is divided into cold-zone and hot-zone with dividing plate, and 60 ℃ of high temperature slurries behind the washing flue gas are admitted in the hot-zone, and 43 ℃ of low temperature slurries after the heat exchange are admitted in the cold-zone; Wherein the hot-zone is communicated with fully with the spray district, and the top, cold-zone is by the cover plate complete closed; In the position, hot-zone of tower body sidewall hot slurries loop exit is set, the cold-zone arranges cold slurries circulation import, and hot slurries loop exit is communicated with cold slurries circulation import by slurry circulating pump and heat exchanger successively; In the position, cold-zone of tower body sidewall cold slurries outlet is set, cold slurries outlet is communicated with feeding spraying pump, and feeding spraying pump is communicated with spray equipment again; The position, hot-zone of tower body sidewall also is provided with the bleeder valve for the discharging rich solution, and the position, cold-zone of tower body sidewall also is provided with the refluxing opening that refluxes for lean solution.
Be made as respectively conical bottom at the bottom of the tower of purifying column cold-zone and hot-zone, evacuation port all is set on the conical bottom; Both overcome at Ta Bishang and offered the disadvantage that evacuation port can not be emptied completely slurries in the tower, overcome simultaneously the problem that dust is easily piled up.
Above-mentioned smoke inlet, exhanst gas outlet and all slurries are imported and exported parts and are the fiberglass making, and adopt flange to connect; Subregion dividing plate, cover plate spraying layer brace summer, demister brace summer in the tower are glass steel material.
Above-mentioned tower body can be according to the difference of temperature range, with the variation of tower height degree tower body is divided into some joints, and every root section is carried out type selecting according to temperature requirement to fiber glass resin, and selects the tower wall thickness; The joint with the joint between the employing flange be connected.
The utility model organic amine circulation desulfurization technology principle is as follows:
In the aqueous solution, the SO of dissolving
2Reversible hydration and ionization process shown in meeting generating polynomial (1), (2):
In water, add organic amine and can increase SO
2Meltage.Hydrogen ion in organic amine and the water reacts, and forms amine salt, and (1), (2) reaction equation react to the right, have increased SO
2Meltage;
Reaction (3) illustrates SO
2Concentration increase, balance moves right, and is conducive to organic amine liquid and removes SO in the flue gas
2Gas.
Renewable organic amine circulation desulfurization technology of the present utility model is as follows:
1, after purifying column of the present utility model is installed, at first from the import of purifying column fresh water (FW) and organic amine charge door, distinguishes fresh water (FW) and the organic amine of additional proportion; Fresh water (FW) and organic amine become mixed liquor in the purifying column hot-zone, start slurry circulating pump and make mixed serum enter the storage of purifying column cold-zone, store a certain amount of rear startup feeding spraying pump, make mixed serum begin spray;
2, connect flue gas, flue gas at first enters purifying column spray district, the mixed serum water counter current contacting of flue gas and spray, the heat in the flue gas and SO
2The mixed serum that is sprayed in the spray district absorbs, and the flue gas behind the cooling and purifying is discharged from purifying column top exhanst gas outlet;
3, absorb SO
2After about 60 ℃ mixed serum become and contain SO
2Rich solution, and fall to concentrating on the purifying column hot-zone, again through slurry circulating pump constantly extract out and pressurization after enter heat exchanger, be down to volatilization temperature below 43 ℃ through heat exchange, enter the purifying column cold-zone after the cooling and store; The rich solution that the purifying column cold-zone stores is the spray equipment in feeding spraying pump forced feed purifying column again, thereby realizes rich solution spray water circuit, and rich solution repeats the SO in the flue gas in the type absorption purification tower in circulation
2, SO in rich solution
2When reaching finite concentration, discharge from bleeder valve; The dust that absorbs is simultaneously regularly discharged at the bottom of tower in hot-zone meeting natural subsidence.
4, the rich solution of bleeder valve discharge enters the regeneration treatment process, SO in the rich solution in the regeneration treatment process
2Be recovered, become the lean solution that contains organic amine, the lean solution that contains organic amine is got back to the cold-zone of purifying column by refluxing opening, thereby makes organic amine obtain recycling utilization.
Good effect of the present utility model is:
1, this tower mainly is applicable to the amine process flue gas desulfurization technique, and the amine process flue gas desulfurization technique is a kind of regenerative flue gas desulfurization technique, has the desulfuration efficiency height, and absorbent is renewable, SO
2Can recycle, not produce the advantages such as secondary pollution; The SO that reclaims
2, can be directly used in and make the high-quality industrial sulphuric acid, do not need to consume sulphur or troilite, do not need to add in addition raw material, make the SO in the flue gas
2Turn waste into wealth, be fully used, both created economic benefit, solved again the situation of atmosphere pollution, economic benefit and social benefit bumper harvests.
2, this tower is a kind of integrated novel energy-conserving and environment-protective purifier, takes up an area few.Because the slurries in the purifying column will rise to about 60 ℃ with the reverse rear slurry temperature that contacts of flue gas, can't satisfy the requirement of cooled flue gas desulfurization, so will be divided into the design in " cold/heat " two districts at the bottom of the tower, by constantly absorb, release heat, slurry temperature is maintained below the organic amine volatilization temperature (45 ℃), can effectively reduce organic amine and escape; Simultaneously, the control slurries are in SO
2The optimal absorption temperature range can improve desulfuration efficiency greatly; The heat that exchanges for can be used as the thermal source of follow-up organic amine desorption and regeneration operation.
4, the dust in the slurries has purified loop slurry to a certain extent in " hot-zone " meeting natural subsidence, has alleviated the live load of heat exchanger, thereby has reduced system energy consumption.
5, purifying column adopts all-glass fibre reinforced plastic to make.Fiberglass all reaches even is better than the traditional handicraft of carbon steel liner at aspects such as corrosion resistance, heat-resisting quantity, resistance to abrasion, intensity, but also have lightweight, the characteristics such as operation maintenance is convenient, and cost is low.Glass steel tower adopts vertical winding technique, inner liner, strength layer and external protection coating one-shot forming, and liner has improved the intensity of goods without longitudinal seam.
6, reclaim SO
2After the lean solution that contains absorbent obtain recycling utilization, thereby save operating cost.
Description of drawings
Fig. 1 is the schematic diagram of the utility model embodiment.
Marginal data, 1--tower body, 2--spray equipment, the 3--demister, 4--exhanst gas outlet, the cold slurries circulation of 5--import, the 6--feeding spraying pump, 7--bleeder valve, the hot slurries loop exit of 8--, the 9--slurry circulating pump, 10--heat exchanger, the import of 11--fresh water (FW), 12--organic amine charge door, the 13--gas approach, 14--sprays the district, the 15--hot-zone, the 16--cold-zone, the cold slurries outlet of 17--, 18--cold-zone evacuation port, 19--hot-zone evacuation port, the 20--dividing plate, the 21--cover plate, 22--refluxing opening, 23--rich solution regeneration treatment facility.
The specific embodiment
As shown in Figure 1, a kind of renewable organic amine circulation desulfurization purifying column, it comprises a tower body 1 of being made by fiberglass; Tower body 1 tower chamber upper space is made as spray district 14, the spray district arranges spray equipment 2 and demister 3 in 14 tops, tower chamber end face arranges exhanst gas outlet 4, and tower body 1 sidewall arranges gas approach 13, fresh water (FW) import 11 and organic amine charge door 12 near spray district 14 bottom positions; The bottom is the slurries district in the tower chamber, and the slurries district is divided into cold-zone 16 and hot-zone 15 with dividing plate; 60 ℃ of high temperature slurries behind the washing flue gas are admitted in hot-zone 15, and 43 ℃ of low temperature slurries after the heat exchange are admitted in cold-zone 16; Wherein hot-zone 15 is communicated with fully with spray district 14, and 16 tops, cold-zone are by cover plate 21 complete closed; 15 positions, hot-zone at tower body 1 sidewall arrange hot slurries loop exit 8, and cold-zone 16 arranges cold slurries circulation import 5, and hot slurries loop exit 8 is communicated with cold slurries circulation import 5 by slurry circulating pump 9 and heat exchanger 10 successively; Cold slurries outlet 17 is set in 16 positions, cold-zone of tower body 1 sidewall, and cold slurries outlet 17 is communicated with feeding spraying pump 6, and feeding spraying pump 6 is communicated with spray equipment 2 again; 15 positions, hot-zone of tower body 1 sidewall are provided with the bleeder valve 7 for the discharging rich solution, and 16 positions, tower body 1 sidewall cold-zone are provided with the refluxing opening 22 that refluxes for lean solution.
In order to prevent dust accumulation at the bottom of the tower, be made as respectively conical bottom at the bottom of the tower of cold-zone 16 and hot-zone 15, on 16 conical bottom of cold-zone cold-zone evacuation port 18 is set, on 15 conical bottom of hot-zone hot-zone evacuation port 19 is set.
Above-mentioned gas approach 13, exhanst gas outlet 4 and all slurries are imported and exported parts (comprising fresh water (FW) import 11, organic amine charge door 12, hot slurries loop exit 8, cold slurries circulation import 5, cold slurries outlet 17, cold-zone evacuation port 18 and hot-zone evacuation port 19) and are the fiberglass making, and adopt flange to connect; Subregion dividing plate 20, cover plate 21, spraying layer brace summer, demister 3 brace summers in the tower are glass steel material.
Above-mentioned tower body 1 can be according to the difference of temperature range, with the variation of tower height degree tower body 1 is divided into some joints, and every root section is carried out type selecting according to temperature requirement to fiber glass resin, and selects the tower wall thickness; The joint with the joint between the employing flange be connected.
The utility model sulfur removal technology is as follows:
The first step: after purifying column is installed, at first from purifying column fresh water (FW) import 11 and organic amine charge door 12, distinguish fresh water (FW) and the organic amine of additional proportion; Fresh water (FW) and organic amine become mixed liquor in purifying column hot-zone 15, start slurry circulating pump 9 and make mixed serum enter 16 storages of purifying column cold-zone, store a certain amount of rear startup feeding spraying pump 6, make mixed serum begin spray;
Second step: connect flue gas, flue gas at first enters purifying column spray district 14, the mixed serum water counter current contacting of flue gas and spray, the heat in the flue gas and SO
2The mixed serum that is sprayed in spray district 14 absorbs, and the flue gas behind the cooling and purifying is discharged from purifying column top exhanst gas outlet 4;
The 3rd step: absorb SO
2After about 60 ℃ mixed serum become and contain SO
2Rich solution, and fall to concentrating on purifying column hot-zone 15, again through slurry circulating pump 9 constantly extract out and pressurization after enter heat exchanger 10, be down to volatilization temperature below 43 ℃ through heat exchange, enter purifying column cold-zone 16 after the cooling and store; The rich solution that purifying column cold-zone 16 stores is the spray equipment 2 in feeding spraying pump 6 forced feed purifying columns again, thereby realizes rich solution spray water circuit, and rich solution repeats the SO in the flue gas in the type absorption purification tower in circulation
2, SO in rich solution
2When reaching finite concentration, discharge from bleeder valve 7; The dust that absorbs simultaneously 15 can natural subsidence in the hot-zone, and regularly conical bottom is discharged and got final product at the bottom of the tower.
The 4th step: the rich solution that bleeder valve 7 is discharged enters rich solution regeneration treatment facility 23, SO in the rich solution in the regeneration treatment process
2Be recovered, reclaim SO
2After the lean solution that contains organic amine get back to the cold-zone 16 of purifying column by refluxing opening 22, thereby make organic amine obtain recycling utilization.
Claims (2)
1. a renewable organic amine circulation desulfurization purifying column is characterized in that, it comprises a tower body of being made by fiberglass; Tower chamber upper space is made as the spray district, and the spray district arranges spray equipment and demister in top, and tower chamber end face arranges exhanst gas outlet, and the tower body sidewall arranges gas approach, fresh water (FW) import and organic amine charge door near spray district bottom position; The bottom is the slurries district in the tower chamber, and the slurries district is divided into cold-zone and hot-zone with dividing plate, and 60 ℃ of high temperature slurries behind the washing flue gas are admitted in the hot-zone, and 43 ℃ of low temperature slurries after the heat exchange are admitted in the cold-zone; Wherein the hot-zone is communicated with fully with the spray district, and the top, cold-zone is by the cover plate complete closed; In the position, hot-zone of tower body sidewall hot slurries loop exit is set, the cold-zone arranges cold slurries circulation import, and hot slurries loop exit is communicated with cold slurries circulation import by slurry circulating pump and heat exchanger successively; In the position, cold-zone of tower body sidewall cold slurries outlet is set, cold slurries outlet is communicated with feeding spraying pump, and feeding spraying pump is communicated with spray equipment again; The position, hot-zone of tower body sidewall also is provided with the bleeder valve for the discharging rich solution, and the position, cold-zone of tower body sidewall also is provided with the refluxing opening that refluxes for lean solution.
2. renewable organic amine circulation desulfurization purifying column as claimed in claim 1 is characterized in that, is made as respectively conical bottom at the bottom of the tower of cold-zone and hot-zone, is provided with evacuation port on the conical bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320255025 CN203253350U (en) | 2013-05-11 | 2013-05-11 | Renewable organic amine circulating desulfurization purifying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320255025 CN203253350U (en) | 2013-05-11 | 2013-05-11 | Renewable organic amine circulating desulfurization purifying tower |
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| Publication Number | Publication Date |
|---|---|
| CN203253350U true CN203253350U (en) | 2013-10-30 |
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|---|---|---|---|
| CN 201320255025 Withdrawn - After Issue CN203253350U (en) | 2013-05-11 | 2013-05-11 | Renewable organic amine circulating desulfurization purifying tower |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252161A (en) * | 2013-05-11 | 2013-08-21 | 山东中玻节能环保发展有限公司 | Renewable organic amine circulation desulfurization purification tower and renewable organic amine circulation desulfurization technology |
| CN103691260A (en) * | 2013-12-23 | 2014-04-02 | 北京国电清新环保技术股份有限公司 | Heat recovery water-saving system for desulfuration by wet process and process thereof |
| CN104548908A (en) * | 2014-11-05 | 2015-04-29 | 朱忠良 | Amine liquid desulphurization method |
-
2013
- 2013-05-11 CN CN 201320255025 patent/CN203253350U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252161A (en) * | 2013-05-11 | 2013-08-21 | 山东中玻节能环保发展有限公司 | Renewable organic amine circulation desulfurization purification tower and renewable organic amine circulation desulfurization technology |
| CN103691260A (en) * | 2013-12-23 | 2014-04-02 | 北京国电清新环保技术股份有限公司 | Heat recovery water-saving system for desulfuration by wet process and process thereof |
| CN103691260B (en) * | 2013-12-23 | 2017-04-12 | 北京清新环境技术股份有限公司 | Heat recovery water-saving system for desulfuration by wet process and process thereof |
| CN104548908A (en) * | 2014-11-05 | 2015-04-29 | 朱忠良 | Amine liquid desulphurization method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131030 Effective date of abandoning: 20150415 |
|
| RGAV | Abandon patent right to avoid regrant |