CN101036855A - Circled dry phase flow tower flue gas desulphurizaion technique - Google Patents
Circled dry phase flow tower flue gas desulphurizaion technique Download PDFInfo
- Publication number
- CN101036855A CN101036855A CN 200610017524 CN200610017524A CN101036855A CN 101036855 A CN101036855 A CN 101036855A CN 200610017524 CN200610017524 CN 200610017524 CN 200610017524 A CN200610017524 A CN 200610017524A CN 101036855 A CN101036855 A CN 101036855A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- tower
- phase flow
- dry
- gas
- 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.)
- Granted
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention relates to a flue-gas dry-method desulphurization process in a circulation dry-phase flow tower, comprising the steps of (1) introducing the SO2 exhaust gas from industrial production into a first-stage dust cleaner for removing 90% fly ash particles in flue gas; (2) introducing the flue gas without fly ash particles into the circulation dry-phase flow tower via a pipe to thoroughly contact with the desulfurization absorbent pulp MgO evenly distributed on the inlet for flue gas, driving the mixed absorbent pulp and SO2 in flue gas into the tower by flue gas, sufficiently stirring and mixing the mixture to produce MgSO3 and MgSO4 for desulfurization; (3) introducing the reacted flue gas into a second-stage dust cleaner via a circulation dry-phase flow tower gas-solid separator, removing dust again for reaching the standard, and discharging, simultaneously, separating the byproduct and the non-completely-reacted desulfurization absorbent particles from the reaction mixture in the tower by a tower-bottom particles separator, and conveying the reusable non-completely-reacted desulfurization absorbent particles into the circulation device via a tower-bottom chain conveyor of the circulation dry-phase flow tower for cyclic utilization. The invention has the advantages of simple process, low cost, good service performance, and wide application range.
Description
Technical field
The invention belongs to the flue gas desulfurization technique field, particularly a kind of Circled dry phase flow tower flue gas desulphurizaion technique.
Background technology
The improvement of sulfur dioxide gas body pollution is the emphasis of world's most countries environmental protection always, is one of greatest contamination source of causing China's environmental destruction, has become the task of top priority of China's air contaminant treatment at present.
To the improvement of sulfur dioxide, domestic main flue gas desulfurization technique is based on wet method, dry method, semi-dry desulphurization at present.Though the wet desulphurization effect is better, have that investment is big, water consumption is big, floor space is big, system complex, and need a series of shortcomings such as handle again water, city's field boundary popularization difficulty is very big.
The documents of coming out by retrieval has: 1, Chinese patent application number is CN02147821.X, Granted publication number is CN1425491, Granted publication day is on June 25th, 2003, and the name of innovation and creation is called combined-circulation formula fluidization dry flue gas desulphurization technology and desulfurization reaction tower.
2, Chinese patent application number is CN03125304.0, and the day for announcing is on April 28th, 2004, and the name of innovation and creation is called the circulating fluidization dry flue gas desulphurization technology that adopts the layering feed back.
Summary of the invention
In order to overcome the deficiency on the prior art, the present invention provides a kind of sulfur removal technology to society, this technology is simple, the low serviceability of price is good, can guarantee enough desulfurization absorbent utilization rates and flue gas desulfurization effect, a kind of Circled dry phase flow tower flue gas desulphurizaion technique that is easy to promote.
Purpose of the present invention is achieved by following technical proposals:
A kind of Circled dry phase flow tower flue gas desulphurizaion technique of the present invention is characterized in that this technology operates according to the following steps:
(1), the form waste gas of sulfur dioxide that contains that at first industrial production produced sends in the primary dust removing device, removes 90% fly ash particulate in the flue gas;
(2), the flue gas that will remove fly ash particulate is sent in the circulation dry-phase flow tower with at smoke inlet place equally distributed desulfurization absorbent slurries magnesia by pipeline and is fully contacted, power by flue gas is mixed in the tower absorbent slurry and sulfur in smoke, many group agitators are set in the tower, make mixture fully mix reaction, generate magnesium sulfite and magnesium sulfate, reach the desulfurization purpose;
(3), the flue gas that reacted is delivered to secondary ash collector by circulation dry-phase flow tower gas-solid separator, through qualified discharge after the dedusting once more, tower internal reaction thing is under the effect of grain sorting device at the bottom of the tower simultaneously, with accessory substance and not the desulfurization absorbent particle sorting of complete reaction go out, with the desulfurization absorbent particle of the not complete reaction that can be recycled by the circulation dry-phase flow Tata at the bottom of chain conveyor send recycle unit back to, the repetitive cycling utilization.
Described desulfurization absorbent slurries magnesia moisture remains between the 5%-10%, described circulation dry-phase flow tower gas-solid separator is the venetian blind type gas-solid separator, and described primary dust removing device, secondary ash collector are electric cleaner, fiber bag precipitator or inertial separation deduster.
Beneficial effect
The present invention has following advantage:
1, technology is simple, price is low, serviceability is good, is easy to promote.
2, the few and utilization rate height of doctor solution consumption, repeated use capable of circulation, flue gas desulfurization is effective.
3, water consumption is low, and adaptability is strong, and no waste water produces.
Description of drawings
Fig. 1 is the Circled dry phase flow tower flue gas desulphurizaion technique flow chart.
Among the figure: 1. combustion apparatus, 2. primary dust removing device (low-resistance deduster such as electrostatic precipitation), 3. the circulation dry-phase flow tower mixes the contact chamber, 4. circulation dry-phase flow tower humidifier, 5. chain agitator, 6. circulation dry-phase flow Tata spirit solid separator, 7. external gas-solid separator, 8. gravity classifier, 9. chain conveyor at the bottom of the circulation dry-phase flow Tata, 10. secondary ash collector (as sack cleaner), 11. technology water tank, 12. elevator, 13. desulfurization material storehouse, 14. desulfurization product storehouse, 15. chimney.
The specific embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment 1: at first, the gas process one-level smoke dust-removing equipment electric cleaner 2 that contains sulfur dioxide, harmful substance and dust from combustion apparatus 1 discharge, remove in the flue gas about 90% fly ash particulate, enter circulation dry-phase flow tower mixing chamber 3 by flue then.Be that 1-10um desulfurization absorbent magnesia is sent in the circulation dry-phase flow column overhead humidifier 4 with the digestion of the water humidification in the technology water tank 11 by elevator 12 simultaneously with the granulometric range in the desulfurization material storehouse 13, generate highly active desulfurizing agent absorbent slurry through digestion reaction, this desulfurization absorbent slurries magnesia moisture remains between the 5%-10%.Delivering to the smoke inlet place then evenly distributes, fully contact with the flue gas in entering tower, power by flue gas is mixed in the tower absorbent slurry and sulfur in smoke, many group chain agitators 5 are set in the tower, make mixture fully mix reaction, by the mechanical force of agitator and the mutual collision of flue gas and desulfurization absorbent, complicated physical-chemical reactions such as strong three-phase turbulent flow, heat transfer, mass transfer take place, and can peel off the passivating film on desulfurization absorbent surface, expose the surface that makes new advances, have activity, thereby improve the desulfurization absorbent utilization rate.Reaction generates magnesium sulfite and magnesium sulfate, is present in the desulfurization absorbent, reaches the desulfurization purpose.
Enter circulation dry-phase flow Tata spirit solid separator 6 and the external gas-solid separator 7 of desulfurizing tower through the flue gas that purifies, external gas-solid separator is the venetian blind type gas-solid separator, separate entering external secondary ash collector sack cleaner 10, contained 1-5um dust is intercepted and captured by cloth bag in the flue gas.The flue gas of process secondary ash collector enters chimney 15 and realizes effluxing after the gas cleanings.
Claims (5)
1, a kind of Circled dry phase flow tower flue gas desulphurizaion technique is characterized in that this technology operates according to the following steps:
(1), the form waste gas of sulfur dioxide that contains that at first industrial production produced sends in the primary dust removing device, removes 90% fly ash particulate in the flue gas;
(2), the flue gas that will remove fly ash particulate is sent in the circulation dry-phase flow tower with at smoke inlet place equally distributed desulfurization absorbent slurries magnesia by pipeline and is fully contacted, power by flue gas is mixed in the tower oxysulfide in absorbent slurry and the flue gas, many group chain agitators are set in the tower, make mixture fully mix reaction, generate magnesium sulfite and magnesium sulfate, reach the desulfurization purpose;
(3), the flue gas that reacted is delivered to secondary ash collector by the built-in gas-solid separator of circulation dry-phase flow tower, through qualified discharge after the dedusting once more, tower internal reaction thing is under the effect of grain sorting device at the bottom of the tower simultaneously, with accessory substance and not the desulfurization absorbent particle sorting of complete reaction go out, with the desulfurization absorbent particle of the not complete reaction that can be recycled by the circulation dry-phase flow Tata at the bottom of chain conveyor send recycle unit back to, the repetitive cycling utilization.
2, a kind of Circled dry phase flow tower flue gas desulphurizaion technique according to claim 1 is characterized in that: described desulfurization absorbent slurries magnesia moisture remains between the 5%-10%.
3, a kind of Circled dry phase flow tower flue gas desulphurizaion technique according to claim 1 is characterized in that: described circulation dry-phase flow tower gas-solid separator is the venetian blind type gas-solid separator.
4, a kind of Circled dry phase flow tower flue gas desulphurizaion technique according to claim 1 is characterized in that: described primary dust removing device is electric cleaner, fiber bag precipitator or inertial separation deduster.
5, a kind of Circled dry phase flow tower flue gas desulphurizaion technique according to claim 1 is characterized in that: described secondary ash collector is electric cleaner or fiber bag precipitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100175247A CN100490947C (en) | 2006-03-15 | 2006-03-15 | Circled dry phase flow tower flue gas desulphurizaion technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100175247A CN100490947C (en) | 2006-03-15 | 2006-03-15 | Circled dry phase flow tower flue gas desulphurizaion technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101036855A true CN101036855A (en) | 2007-09-19 |
| CN100490947C CN100490947C (en) | 2009-05-27 |
Family
ID=38888155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100175247A Expired - Fee Related CN100490947C (en) | 2006-03-15 | 2006-03-15 | Circled dry phase flow tower flue gas desulphurizaion technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100490947C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001404A (en) * | 2014-06-09 | 2014-08-27 | 中冶南方工程技术有限公司 | Moving layer type steel slag dry desulfurization equipment and desulfurization method |
| CN107983119A (en) * | 2017-12-05 | 2018-05-04 | 中晶环境科技股份有限公司 | The dry desulfurization method of denitration of oxidation is forced based on ozone |
| CN108261913A (en) * | 2018-02-13 | 2018-07-10 | 鞍钢股份有限公司 | A kind of magnesia semi-dry desulfurizing process and system |
| CN111229027A (en) * | 2020-02-14 | 2020-06-05 | 河海大学 | Organic waste gas treatment method and device |
-
2006
- 2006-03-15 CN CNB2006100175247A patent/CN100490947C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001404A (en) * | 2014-06-09 | 2014-08-27 | 中冶南方工程技术有限公司 | Moving layer type steel slag dry desulfurization equipment and desulfurization method |
| CN107983119A (en) * | 2017-12-05 | 2018-05-04 | 中晶环境科技股份有限公司 | The dry desulfurization method of denitration of oxidation is forced based on ozone |
| CN108261913A (en) * | 2018-02-13 | 2018-07-10 | 鞍钢股份有限公司 | A kind of magnesia semi-dry desulfurizing process and system |
| CN108261913B (en) * | 2018-02-13 | 2021-07-20 | 鞍钢股份有限公司 | Magnesium oxide semi-dry desulfurization process |
| CN111229027A (en) * | 2020-02-14 | 2020-06-05 | 河海大学 | Organic waste gas treatment method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100490947C (en) | 2009-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101259365B (en) | Two-stage pre-spraying water circulating fluidized bed desulfurization technique and system thereof | |
| CN108939767B (en) | Wet efficient purification method for flue gas containing elemental sulfur | |
| CN102350205B (en) | Constant-temperature half-dry smoke purification method and system | |
| CN201195098Y (en) | Flue-gas desulfurizing device of sintering device | |
| CN200980986Y (en) | Circulation fluidized bed dry method smoke desulphurizing device | |
| CN105642104A (en) | Deep purification method and device of flue gas after wet-process desulfurization | |
| CN100490947C (en) | Circled dry phase flow tower flue gas desulphurizaion technique | |
| CN2843598Y (en) | Smoke circulating fluidized-bed desulfurizer | |
| CN105107366B (en) | A kind of concurrent spray semi-dry fume desulfuration method | |
| CN207654932U (en) | A kind of desulphurizing and dust-removing integral system for ceramic industry | |
| CN201094901Y (en) | Sintered frame head flue gas desulfurization dust removing integrated device | |
| CN1169604C (en) | Composite Circulation fluidized dry desulfurization process for flue gas and desalfurizing reaction tower | |
| CN1332334A (en) | Comprehensive garbage incinerating tail gas purifying method and equipment | |
| CN206604374U (en) | A kind of desulfurizing tower | |
| CN1087645C (en) | Method and equipment for desulfurizing flue gas by circulation and fluidization | |
| CN208136188U (en) | A kind of flue gas purification system of fire coal coupled biological matter gasification | |
| CN100998932A (en) | Circulation fluidized bed dry method flue gas desulfur device | |
| CN1185041C (en) | Circular suspension type semi-dry fume purifier | |
| CN115888374A (en) | Flue gas treatment system and method for breaking inner side wall effect of tower and improving pollutant removal efficiency | |
| CN1224445C (en) | Dry-process flue gas desulfurizing method using combined gas jet | |
| CN212068244U (en) | Flue gas defluorination desulfurization dust removal clean system | |
| CN2643987Y (en) | Electron beam ammonia process SOx/NOx control device | |
| CN214437348U (en) | Rotary kiln with waste gas recovery device | |
| CN2683233Y (en) | Water cooling purifying device for smoke from rubbish incineration | |
| CN211358355U (en) | A deacidification device for gas cleaning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Xu Jinhui Document name: Notification to Go Through Formalities Rectification of Restoration of Right |
|
| DD01 | Delivery of document by public notice |
Addressee: Luoyang hi tech broad environmental protection new technology Co., Ltd. head of Intellectual Property Department Document name: Notification of Decision on Request for Restoration of Right |
|
| DD01 | Delivery of document by public notice |
Addressee: Luoyang Gaoxin Boda Environment Protection New Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20120315 |