CN108955280A - A kind of environment protection treating method of fuming furnace slag water quenching steam - Google Patents
A kind of environment protection treating method of fuming furnace slag water quenching steam Download PDFInfo
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- CN108955280A CN108955280A CN201810589148.1A CN201810589148A CN108955280A CN 108955280 A CN108955280 A CN 108955280A CN 201810589148 A CN201810589148 A CN 201810589148A CN 108955280 A CN108955280 A CN 108955280A
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- China
- Prior art keywords
- steam
- water quenching
- fuming furnace
- furnace slag
- slag water
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
- F27D17/002—Details of the installations, e.g. fume conduits or seals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/04—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot slag, hot residues, or heated blocks, e.g. iron blocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention discloses a kind of environment protection treating method of fuming furnace slag water quenching steam, belongs to field of environment engineering technology.The present invention is cooperated wet-esp, is purified to fuming furnace slag water quenching steam by the way of washing cooling, and the steam and particulate matter generate to slag water quenching is effectively recycled, and treatment process does not generate the three wastes, without secondary pollution.Particle content is 240-560mg/Nm in steam before handling3, the steam qualified discharge containing particulate matter handled, granular material discharged concentration≤30mg/m3, Steam Recovery rate is more than or equal to 80%, and water quenching discharge of steam appearance significantly improves, and exhaust emissions meets the requirement of " lead, Zn Cr coating pollutant emission standard (GB 25466-2010) ".Without chemical agent, secondary pollution is not present, process is simple, easily operated.
Description
Technical field
The invention belongs to field of environment engineering technology, specifically, being related to a kind of environmental protection of fuming furnace slag water quenching steam
Administering method.
Background technique
The degree of China's heavy metal in soil pollution in recent years is gradually extended to rural area from outskirts of a town, to non-ferrous smelt enterprise
Environmental improvement protection work brings great challenge.The weight of metallurgical industry is had become to the comprehensive utilization of metallurgical solid waste
Project is wanted, the harmless treatment and renewable resources to these wastes improve energy utilization rate using metallurgy industry, to reduce
Energy consumption opens important channel.The development and utilization of smelted furnace cinder have also been paid more and more attention, by the smelting of proper treatment
Clinker will be used wider and wider general.The comprehensive reutilization for reinforcing smelted furnace cinder, develops the smelted furnace cinder of novel energy-saving environment-friendly
Processing mode is not only enterprise and adapts to the main behave developed a circular economy, also will be smelting enterprise's new growth engines.
There is presently no the industrialization operation for fast and effeciently collecting recycle-water steam related process, partially recycled rate is high for the country
Technique is only at the experimental stage, continues new method and technique to the environment protection treating method of fuming furnace slag water quenching steam.
Summary of the invention
In order to solve the problems, such as that background technique, the present invention respond the requirement of national relevant laws and regulations, put forward
A kind of pair of fuming furnace slag water quenching steam carries out secondary purification, and the steam and particulate matter generate to slag water quenching is effectively returned
It receives.
The use technical solution that the environment protection treating method of fuming furnace slag water quenching steam of the present invention solves the above problems is: using and washes
The mode of cooling is washed, cooperates wet-esp, fuming furnace slag water quenching steam is purified, and recycles wherein moisture and particle
Object, the specific steps are as follows:
(1) high-temperature water vapor generated after fuming furnace slag water quenching, is effectively collected through water quenching flue and petticoat pipe moving trolley
Afterwards, vapor chimneys are blasted through exhaust blower, is precooled, preliminary water quenching steam after cooling enters back into first class purification tower, locates
Particle content is 240-560mg/Nm in steam before managing3,
(2) washing water is transported to scrubbing tower top by circulating pump, high-temperature steam is washed and is cooled down, the steaming washed
Vapour enters secondary purification, while shunting portion of washing water, into plate type heat exchanger, cools down；
(3) water quenching steam enters back into wet-esp and is evenly distributed, by the effect of electromagnetic field, by most steam with
Particulate matter carries out Physical entrapment and enrichment, and purified tail gas up to standard is to guarantee visual appearance, is mixed into cold wind again；
(4) integrated artistic runs to some cycles, the shape that the particulate matter being enriched in scrubbing tower and wet-esp is passed through underflow
Formula discharge, is transported to slag filtering process and is separated by solid-liquid separation, and the blob of slag isolated serves as fuming furnace raw materials for metallurgy, and clear liquid returns to this
System washing water.
In the processing step (1), slag water quenching gas temperature temperature is down to 70 DEG C hereinafter, pressure 3.5-4kPa, flow velocity 15-
20m/s, Steam Recovery rate 5-8%；
In the processing step (2), gas flow rate is in 1-2m/s in scrubbing tower, and tower exit temperature is at 62-58 DEG C, pressure 2.2-
3kPa, washing water internal circulating load are 150-200 m3/ h, L/G 3-3.5L/m3, 8-12 DEG C of the temperature difference of plate heat exchanger cold water end, hot water
5.5-6.5 DEG C of the temperature difference of end, vapour rate of recovery 60-70%；
In the processing step (3), the gas flow rate in the dedusting phase is in 2-2.3m/s, and outlet temperature is 50-55 DEG C, pressure 1-
1.5kPa, vapour rate of recovery 5-10%, particulate matter export content≤30mg/Nm3Outlet mixing cold wind ratio is 20-30%.
In the processing step (4), the processing rate of recovery to underflow is 100%.
The environment protection treating method of fuming furnace slag water quenching steam of the invention, by the way of washing cooling, cooperation wet type electricity is removed
Dirt purifies fuming furnace slag water quenching steam, and the steam and particulate matter generate to slag water quenching is effectively recycled, and handles
Process does not generate the three wastes, without secondary pollution.
The utility model has the advantages that it is 240-560mg/Nm that the present invention, which handles particle content in preceding steam,3, the steam handled is containing particulate matter
Qualified discharge, granular material discharged concentration≤30mg/m3, more than or equal to 80%, water quenching discharge of steam appearance obtains Steam Recovery rate
To significantly improving, exhaust emissions meets the requirement of " lead, Zn Cr coating pollutant emission standard (GB 25466-2010) ".Without chemistry
Secondary pollution is not present in medicament, and process is simple, easily operated.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
The environment protection treating method of fuming furnace slag water quenching steam: by the way of washing cooling, cooperating wet-esp, right
Fuming furnace slag water quenching steam is purified, and the steam and particulate matter generate to slag water quenching is effectively recycled, treatment process
The three wastes are not generated, without secondary pollution, the steam qualified discharge containing particulate matter that has handled, the specific steps are as follows:
1) high-temperature water vapor generated after fuming furnace slag water quenching, is effectively collected through water quenching flue and petticoat pipe moving trolley
Afterwards, vapor chimneys are blasted through exhaust blower, is precooled, preliminary water quenching steam after cooling enters back into first class purification tower；
2) washing water is transported to scrubbing tower top by circulating pump, high-temperature steam is washed and is cooled down, the steaming washed
Vapour enters secondary purification, while shunting portion of washing water, into plate type heat exchanger, cools down；
3) water quenching steam enters back into wet-esp and is evenly distributed, by the effect of electromagnetic field, by most steam with
Particulate matter carries out Physical entrapment and enrichment, and purified tail gas up to standard is to guarantee visual appearance, is mixed into cold wind again；
4) integrated artistic runs to some cycles, by the particulate matter being enriched in scrubbing tower and wet-esp by way of underflow
Discharge, is transported to slag filtering process and is separated by solid-liquid separation, the blob of slag isolated serves as fuming furnace raw materials for metallurgy, and clear liquid returns to this and is
System washing water.
It is preferred that slag water quenching gas temperature temperature is down to 70 DEG C hereinafter, pressure 3.5-4kPa, flow velocity 15-20m/ in step 1)
S, Steam Recovery rate 5-8%；
It is preferred that in step 2, gas flow rate is in 1-2m/s in scrubbing tower, and tower exit temperature is at 62-58 DEG C, pressure 2.2-
3kPa, washing water internal circulating load are 150-200 m3/ h, L/G 3-3.5L/m3, 8-12 DEG C of the temperature difference of plate heat exchanger cold water end, hot water
5.5-6.5 DEG C of the temperature difference of end, vapour rate of recovery 60-70%；
It is preferred that the gas flow rate in the dedusting phase is in 2-2.3m/s, and outlet temperature is 50-55 DEG C, pressure 1- in step 3)
1.5kPa, vapour rate of recovery 5-10%, particulate matter export content≤30mg/Nm3Outlet mixing cold wind ratio is 20-30%.
Preferably, the processing rate of recovery to underflow is 100% in step 4).
Embodiment 1
The high-temperature water vapor generated after fuming furnace slag water quenching, after water quenching flue and petticoat pipe moving trolley effectively collect,
Vapor chimneys are blasted through exhaust blower, are precooled, preliminary water quenching steam after cooling enters back into first class purification tower, slag water
Gas temperature temperature of quenching is down to 70 DEG C, pressure 3.5kPa, flow velocity 15/s, Steam Recovery rate 5%；Washing water is defeated by circulating pump
It is sent to scrubbing tower top, high-temperature steam is washed and is cooled down, the steam washed enters secondary purification, while shunting part
Washing water cools down into plate type heat exchanger, and gas flow rate is in 62 DEG C, pressure in 1m/s, tower exit temperature in tower
2.2kPa, washing water internal circulating load are 150m3/ h, L/G 3L/m3, 8 DEG C of the temperature difference of plate heat exchanger cold water end, the hot water end temperature difference 5.5
DEG C, the vapour rate of recovery 60%；Water quenching steam enters back into wet-esp and is evenly distributed, will be most of by the effect of electromagnetic field
Steam and particulate matter carry out Physical entrapment and enrichment, purified tail gas up to standard be guarantee visual appearance, be mixed into cold wind again,
Gas flow rate in deduster is in 2m/s, and outlet temperature is 50 DEG C, pressure 1kPa, and the vapour rate of recovery 5%, particulate matter exports content
28mg/Nm3Outlet mixing cold wind ratio is 20%.After integrated artistic runs to 1 day, it will be enriched in scrubbing tower and wet-esp
Particulate matter be discharged by way of underflow, be transported to slag filtering process and be separated by solid-liquid separation, the blob of slag isolated serves as fuming
Furnace raw materials for metallurgy, clear liquid return to this system washing water, and the processing rate of recovery to underflow is 100%；
Particle content is 240-560mg/Nm in steam before present invention processing3, the steam qualified discharge containing particulate matter handled,
Granular material discharged concentration≤30mg/m3, more than or equal to 80%, water quenching discharge of steam appearance is significantly changed Steam Recovery rate
Kind, exhaust emissions meets the requirement of " lead, Zn Cr coating pollutant emission standard (GB 25466-2010) ".Without chemical agent, do not deposit
In secondary pollution, process is simple, easily operated.
Finally, it is stated that preferred embodiment above and attached drawing are only used to illustrate the technical scheme of the present invention and not to limit it, although
The present invention is described in detail by above preferred embodiment, however, those skilled in the art should understand that, can be with
Various changes are made to it in the form and details, without departing from claims of the present invention limited range.
Claims (5)
1. a kind of environment protection treating method of fuming furnace slag water quenching steam, it is characterised in that: by the way of washing cooling, cooperation
Wet-esp purifies fuming furnace slag water quenching steam, and recycles wherein moisture and particulate matter, the specific steps are as follows:
(1) high-temperature water vapor generated after fuming furnace slag water quenching, is effectively collected through water quenching flue and petticoat pipe moving trolley
Afterwards, vapor chimneys are blasted through exhaust blower, is precooled, preliminary water quenching steam after cooling enters back into first class purification tower, locates
Particle content is 240-560mg/Nm in steam before managing3,
(2) washing water is transported to scrubbing tower top by circulating pump, high-temperature steam is washed and is cooled down, the steaming washed
Vapour enters secondary purification, while shunting portion of washing water, into plate type heat exchanger, cools down；
(3) water quenching steam enters back into wet-esp and is evenly distributed, by the effect of electromagnetic field, by most steam with
Particulate matter carries out Physical entrapment and enrichment, and purified tail gas up to standard is to guarantee visual appearance, is mixed into cold wind again；
(4) integrated artistic runs to some cycles, the shape that the particulate matter being enriched in scrubbing tower and wet-esp is passed through underflow
Formula discharge, is transported to slag filtering process and is separated by solid-liquid separation, and the blob of slag isolated serves as fuming furnace raw materials for metallurgy, and clear liquid returns to this
System washing water.
2. the environment protection treating method of fuming furnace slag water quenching steam according to claim 1, it is characterised in that: the technique
In step (1), slag water quenching gas temperature temperature is down to 70 DEG C hereinafter, pressure 3.5-4kPa, flow velocity 15-20m/s, Steam Recovery
Rate 5-8%.
3. the environment protection treating method of fuming furnace slag water quenching steam according to claim 1, it is characterised in that: the technique
In step (2), gas flow rate is in 1-2m/s in scrubbing tower, and at 62-58 DEG C, pressure 2.2-3kPa, washing water follows tower exit temperature
Circular rector is 150-200m3/ h, L/G 3-3.5L/m3, 8-12 DEG C of the temperature difference of plate heat exchanger cold water end, hot water end temperature difference 5.5-6.5
DEG C, vapour rate of recovery 60-70%.
4. the environment protection treating method of fuming furnace slag water quenching steam according to claim 1, it is characterised in that: the technique
In step (3), the gas flow rate in the dedusting phase is in 2-2.3m/s, and outlet temperature is 50-55 DEG C, pressure 1-1.5kPa, and vapour returns
Yield 5-10%, particulate matter export content≤30mg/Nm3Outlet mixing cold wind ratio is 20-30%.
5. the environment protection treating method of fuming furnace slag water quenching steam according to claim 1, it is characterised in that: the technique
In step (4), the processing rate of recovery to underflow is 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810589148.1A CN108955280A (en) | 2018-06-08 | 2018-06-08 | A kind of environment protection treating method of fuming furnace slag water quenching steam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810589148.1A CN108955280A (en) | 2018-06-08 | 2018-06-08 | A kind of environment protection treating method of fuming furnace slag water quenching steam |
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| CN108955280A true CN108955280A (en) | 2018-12-07 |
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| CN201810589148.1A Pending CN108955280A (en) | 2018-06-08 | 2018-06-08 | A kind of environment protection treating method of fuming furnace slag water quenching steam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964465A (en) * | 2020-08-28 | 2020-11-20 | 韩雪 | Environment-friendly glass melting waste heat recovery device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001355009A (en) * | 2000-06-14 | 2001-12-25 | Kaihatsu Dengyo Kk | Heat exchanger for slag particles |
| WO2011081267A1 (en) * | 2009-12-30 | 2011-07-07 | 현대제철 주식회사 | Method and apparatus for recovering valuable metals from slag and for producing multifunctional aggregates |
| CN102304594A (en) * | 2011-09-29 | 2012-01-04 | 魏明 | Slag-pot-movable water quenching system utilizing excess heat of molten slag based on water quenching steam method |
| CN104745751A (en) * | 2013-12-28 | 2015-07-01 | 哈尔滨工大金涛科技股份有限公司 | Blast furnace slag water quenching steam waste heat recovery device |
| CN206454435U (en) * | 2016-12-31 | 2017-09-01 | 江苏博际环境工程科技有限公司 | Metallurgical Slag treatment flue gas wet type unsteady flow dedusting and wet electrostatic advanced purification system |
-
2018
- 2018-06-08 CN CN201810589148.1A patent/CN108955280A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001355009A (en) * | 2000-06-14 | 2001-12-25 | Kaihatsu Dengyo Kk | Heat exchanger for slag particles |
| WO2011081267A1 (en) * | 2009-12-30 | 2011-07-07 | 현대제철 주식회사 | Method and apparatus for recovering valuable metals from slag and for producing multifunctional aggregates |
| CN102304594A (en) * | 2011-09-29 | 2012-01-04 | 魏明 | Slag-pot-movable water quenching system utilizing excess heat of molten slag based on water quenching steam method |
| CN104745751A (en) * | 2013-12-28 | 2015-07-01 | 哈尔滨工大金涛科技股份有限公司 | Blast furnace slag water quenching steam waste heat recovery device |
| CN206454435U (en) * | 2016-12-31 | 2017-09-01 | 江苏博际环境工程科技有限公司 | Metallurgical Slag treatment flue gas wet type unsteady flow dedusting and wet electrostatic advanced purification system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964465A (en) * | 2020-08-28 | 2020-11-20 | 韩雪 | Environment-friendly glass melting waste heat recovery device |
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Application publication date: 20181207 |