CN101749951A - Treatment method for segmentation of metallurgy sintering smoke - Google Patents
Treatment method for segmentation of metallurgy sintering smoke Download PDFInfo
- Publication number
- CN101749951A CN101749951A CN200810204738A CN200810204738A CN101749951A CN 101749951 A CN101749951 A CN 101749951A CN 200810204738 A CN200810204738 A CN 200810204738A CN 200810204738 A CN200810204738 A CN 200810204738A CN 101749951 A CN101749951 A CN 101749951A
- Authority
- CN
- China
- Prior art keywords
- smoke
- containing smoke
- smoke gas
- segmentation
- sulfur
- 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.)
- Pending
Links
Images
Landscapes
- Treating Waste Gases (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a treatment method for segmentation of metallurgy sintering smoke, relating to the technique of treating metallurgy sintering smoke, and being used for the treatment of the sintering smoke in steel industry. The smoke is segmented after the smoke is divided into two parts of high sulfur smoke and low sulfur smoke. The position of segmentation point can be determined according to a geometric medium segmentation method or a temperature segmentation method or a concentration segmentation method; under the condition to satisfy discharge temperature and concentration, based on the segmentation of the geometric medium, the segmentation point also can be determined after regulating and optimizing the segmentation point of the geometric medium according to the practical temperature and concentration of the smoke in the process of sintering to lead the treating quantities of the smoke to reach the requirement of economic washing ratio; and the high sulfur smoke and the low sulfur smoke are respectively treated, and the treated high sulfur smoke and the treated low sulfur smoke are discharged through a chimney after mixing. The method of the invention can not only effectively reduce the capacity of a smoke treatment device and occupied areas thereof, but also greatly reduce the cost of investment in one time and operation cost.
Description
Technical field
Treatment method for segmentation of metallurgy sintering smoke relates to the metallurgy sintering smoke treatment technology, is used for the processing to the steel industry sinter fume.
Background technology
Sintering is to pollute for consumption, the minimizing of guaranteeing molten iron high-quality, high yield and reduction coke ratio, resource in the steel manufacture process, blast furnace raw material is carried out pretreatment process, simultaneously, sintering also recycles ion dust mud contaning, its function is important and special, and the overwhelming majority of modern steel enterprise is provided with sintering circuit.Owing to can produce a large amount of flue gases in the sintering process, and mainly contain particle, SO in the flue gas
2, NO
xHe bioxin pollutant, so flue gas can discharge after will advancing purified treatment.At present sinter fume being handled nearly all is to adopt the full dose flue gas to handle, i.e. the processing method of 100% wash ratio, and therefore required fume treatment auxiliary capacity is huge, and occupation area of equipment is big, and once investment and annual operating cost are all very high.
Summary of the invention
At the irrationality that existing full dose sinter fume is handled, the inventor draws the length direction along sintering belt, the exhaust gas temperature of each section, pollutant (SO from the head to the tail through studying for a long period of time
2, NO
xHe bioxin) concentration of concentration and other gases all exists than big-difference, and present certain rules, for this reason, the inventor has proposed flue gas is carried out dividing processing, both can effectively reduce the fume treatment auxiliary capacity and reduce floor space, can reduce the treatment method for segmentation of metallurgy sintering smoke of once investment and operating cost again greatly.
The inventive method is achieved in that according to exhaust gas temperature, the pollutant (SO of sintering machine head end to each section of tail
2, NO
xHe bioxin) concentration of concentration etc. and other gases all exists than big-difference, and present the situation of certain rule, the inventor is divided into high sulfur-containing smoke gas and low sulfur-containing smoke gas two parts with sinter fume, and nearly drive end unit is divided into high sulfur-containing smoke gas part, and nearly head section is low sulfur-containing smoke gas part.Sinter fume is carried out dividing processing, the position of cut-point can be cut apart or temperature is cut apart or the concentration dividing method is determined according to how much metas, also can be under the condition that satisfies exhaust temperature and concentration, cut-point is divided into the basis with how much metas, determine after according to the actual temperature of sintering process flue gas and concentration, make the flue gas treating capacity reach economic wash ratio requirement how much meta cut-point adjustment optimization.Then according to the bellows of the low sulfur-containing smoke gas exhausting of cut-point position reasonable Arrangement and the bellows and the airduct of airduct and high sulfur-containing smoke gas exhausting, low sulfur-containing smoke gas is only handled through electric cleaner, high sulfur-containing smoke gas must order be handled through electric cleaner and desulfurization (FGD) device, high sulfur-containing smoke gas after treatment and low sulfur-containing smoke gas through after mixing by smoke stack emission.
Wash ratio is defined as follows:
The invention has the advantages that:
1. adopt the flue gas dividing processing, reasonably reduced processed exhaust gas volumn, can make the flue gas treating capacity reach economic wash ratio, and can effectively reduce the capacity of desulfurizer device, cut down the investment construction expense one time significantly, floor space and operating cost can obtain qualified discharge and reduce the effect of investment cost more than 40%.
2. after sinter fume was rationally cut apart, the exhaust gas volumn of handling through desulfurization (FGD) device significantly reduced, and helped implementing to do (half-dried) FGD technology.
Sinter fume by dividing processing after, for the pollutant of other higher concentrations in low sulfur-containing smoke gas and the high sulfur-containing smoke gas, set handling device targetedly because total smoke treatment amount is little, therefore corresponding investment cost also reduces greatly.
Since high sulfur-containing smoke gas after the FGD device is handled, temperature is reduced to about 50 ℃～60 ℃, low sulfur-containing smoke gas is because of only through dust removal process, temperature is still more than 100 ℃, with treated high sulfur-containing smoke gas and low sulfur-containing smoke gas because of mixing, flue gas is warming up to more than 80 ℃, then by smoke stack emission.When such processing is done (half-dried) formula FGD system for employing, can use GGH and other special anticorrosives, both save energy, help discharging again.
Description of drawings
Accompanying drawing 1 is the inventive method embodiment schematic diagram, wherein: the chassis and the bed of material 1, tail bellows 2, flue gas blender 3, high sulfur-containing smoke gas blower fan 4, low sulfur-containing smoke gas blower fan 5, desulfurization (FGD) device 6, electric cleaner 7, head bellows 8.
The specific embodiment
The sinter fume total amount is 1,100,000 m
3/ h adjusts the meta cut-point after to sinter fume temperature and concentration actual measurement, and the sinter fume total amount is implemented to cut apart, and nearly drive end unit is divided into high sulfur-containing smoke gas part, and high sulfur-containing smoke gas amount reaches 500,000 m
3/ h, nearly head section is low sulfur-containing smoke gas part, low sulfur-containing smoke gas amount is 600,000 m
3/ h.The nearly tail that tail bellows 2 are located at the chassis and the bed of material 1 partly descends, and is communicated with electric cleaner 7 by ventilation shaft, and head bellows 8 are located under the nearly head section of the chassis and the bed of material 1, are communicated with electric cleaner 7 by ventilation shaft.High sulfur-containing smoke gas is handled through electric cleaner 7 and desulfurization (FGD) device 6 by tail bellows 2 by high sulfur-containing smoke gas blower fan 4 exhausting, low sulfur-containing smoke gas is handled through electric cleaner 7 by head bellows 8 by low sulfur-containing smoke gas blower fan 5 exhausting, and high sulfur-containing smoke gas after treatment and low sulfur-containing smoke gas enter flue gas blender 3 to be mixed after smoke stack emission.Cut apart the method that flue gas is handled owing to adopting, make desulfurization (FGD) install 6 the present full flow flue gas processing of Capacity Ratio desired volume minimizing 40%, the one-time construction investment of desulfurization (FGD) device 6, floor space, and operating cost all has significantly minimizing.
Claims (3)
1. treatment method for segmentation of metallurgy sintering smoke, it is characterized in that: sinter fume is divided into high sulfur-containing smoke gas and low sulfur-containing smoke gas two parts, nearly drive end unit is divided into high sulfur-containing smoke gas part, nearly head section is low sulfur-containing smoke gas part, sinter fume is carried out dividing processing, high sulfur-containing smoke gas is handled through electric cleaner (7) and desulfurization (FGD) device (6) by tail bellows (2) by high sulfur-containing smoke gas blower fan (4) exhausting, low sulfur-containing smoke gas is handled through electric cleaner (7) by head bellows (8) by low sulfur-containing smoke gas blower fan (5) exhausting, and high sulfur-containing smoke gas after treatment and low sulfur-containing smoke gas mix after smoke stack emission by flue gas blender (3).
2. flue gas division processing method according to claim 1, it is characterized in that: the position of cut-point can be cut apart or temperature is cut apart or the concentration dividing method is determined according to how much metas, also can be divided into the basis, determine after to how much meta cut-point adjustment optimization according to the actual temperature of sintering process flue gas and concentration with how much metas.
3. flue gas division processing method according to claim 1, it is characterized in that: the nearly tail that tail bellows (2) are located at the chassis and the bed of material (1) partly descends, be communicated with electric cleaner (7) by ventilation shaft, head bellows (8) are located under the nearly head section of the chassis and the bed of material (1), are communicated with electric cleaner (7) by ventilation shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810204738A CN101749951A (en) | 2008-12-17 | 2008-12-17 | Treatment method for segmentation of metallurgy sintering smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810204738A CN101749951A (en) | 2008-12-17 | 2008-12-17 | Treatment method for segmentation of metallurgy sintering smoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101749951A true CN101749951A (en) | 2010-06-23 |
Family
ID=42477292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810204738A Pending CN101749951A (en) | 2008-12-17 | 2008-12-17 | Treatment method for segmentation of metallurgy sintering smoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101749951A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003886A (en) * | 2010-11-05 | 2011-04-06 | 浙江菲达脱硫工程有限公司 | Sintering machine flue gas separation conduction type desulfurizing device and method |
| CN105135895A (en) * | 2015-08-03 | 2015-12-09 | 郑琨 | Selective sintering flue gas sectional type comprehensive treatment technology |
| CN105509491A (en) * | 2015-12-09 | 2016-04-20 | 郑琨 | Environmental-protection and energy-conservation treatment technology of sintering flue gas |
| CN106782506A (en) * | 2016-11-23 | 2017-05-31 | 语联网（武汉）信息技术有限公司 | A kind of method that recorded audio is divided into section |
| CN113028836A (en) * | 2021-04-19 | 2021-06-25 | 中冶长天国际工程有限责任公司 | Method and system for controlling discharge of hydrogen chloride and sulfur dioxide by sintering source |
-
2008
- 2008-12-17 CN CN200810204738A patent/CN101749951A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003886A (en) * | 2010-11-05 | 2011-04-06 | 浙江菲达脱硫工程有限公司 | Sintering machine flue gas separation conduction type desulfurizing device and method |
| CN105135895A (en) * | 2015-08-03 | 2015-12-09 | 郑琨 | Selective sintering flue gas sectional type comprehensive treatment technology |
| CN105135895B (en) * | 2015-08-03 | 2017-08-29 | 郑琨 | A kind of selective sintering flue gas segmented comprehensive processing technique |
| CN105509491A (en) * | 2015-12-09 | 2016-04-20 | 郑琨 | Environmental-protection and energy-conservation treatment technology of sintering flue gas |
| CN105509491B (en) * | 2015-12-09 | 2017-10-10 | 郑琨 | A kind of environmental protection and energy saving handling process for sintering flue gas |
| CN106782506A (en) * | 2016-11-23 | 2017-05-31 | 语联网（武汉）信息技术有限公司 | A kind of method that recorded audio is divided into section |
| CN113028836A (en) * | 2021-04-19 | 2021-06-25 | 中冶长天国际工程有限责任公司 | Method and system for controlling discharge of hydrogen chloride and sulfur dioxide by sintering source |
| CN113028836B (en) * | 2021-04-19 | 2023-12-29 | 中冶长天国际工程有限责任公司 | Method and system for controlling discharge of hydrogen chloride and sulfur dioxide by sintering source |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102242254B (en) | High sulfide pyrite pellet reinforced roasting consolidation technology | |
| CN104034175B (en) | A kind of energy-saving and emission-reducing sintering process | |
| JP4823596B2 (en) | Method and apparatus for treating exhaust gas in cement firing facility | |
| CN101376921A (en) | Sintering gas flue gas sulfuric dioxide decrement discharge technology | |
| CN104748566B (en) | A kind of method of agglomeration for iron mine energy-saving and emission-reduction | |
| CN101749951A (en) | Treatment method for segmentation of metallurgy sintering smoke | |
| JP2011105985A (en) | Method for treating exhaust gas in sintering machine | |
| CN103344114B (en) | A kind of novel energy-saving emission-reducing sintering machine system and sintering method | |
| CN108568207A (en) | A kind of energy-efficient sintering flue gas multi-pollutant purification technique | |
| CN106823725A (en) | A kind of method of new Type Coke Oven flue gas desulfurization and denitrification | |
| CN105688667A (en) | Method for carrying out denitration on sintering flue gas by utilizing sensible heat of blast furnace slag | |
| CN104061794B (en) | Sintering air bellow exhausting gas waste heat circulating utilization device and method | |
| CN104740982A (en) | Method and apparatus for processing sulfur-containing flue gas by lean manganese mine and rhodochrosite | |
| CN105233645A (en) | Energy saving and emission reduction comprehensive purifying treatment technology of coke oven flue gas | |
| CN103230792B (en) | Produce rubidium vanadium catalyst of sulphuric acid and preparation method thereof | |
| CN104513897A (en) | Iron ore sintering method with ultrahigh-proportion flue gas circulation | |
| CN102003886A (en) | Sintering machine flue gas separation conduction type desulfurizing device and method | |
| CN107866142A (en) | Disposal system for cement industry dry desulfurization denitration accessory substance | |
| CN204142017U (en) | A kind of sintering bellows waste gas residual heat recycling device | |
| CN114152099A (en) | Low-carbon sintering system and method for reducing emission of pollution source, pollutants and flue gas amount | |
| CN203148245U (en) | System for treating flue gas of anode furnace | |
| CN204555719U (en) | The energy-saving denitrating system of a kind of sinter fume | |
| CN106755973A (en) | A kind of method for reducing Ore Sintering Process NO discharges | |
| CN106636620B (en) | A kind of reduction Ore Sintering Process SO2The method of discharge | |
| CN102921291A (en) | Novel integrated device for tempering and desulphurizing smoke of glass smelting kiln by utilizing dry method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100623 |