CN203295545U - Wet-type grading dust removal device for primary flue gas of converter - Google Patents
Wet-type grading dust removal device for primary flue gas of converter Download PDFInfo
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- CN203295545U CN203295545U CN2013203279440U CN201320327944U CN203295545U CN 203295545 U CN203295545 U CN 203295545U CN 2013203279440 U CN2013203279440 U CN 2013203279440U CN 201320327944 U CN201320327944 U CN 201320327944U CN 203295545 U CN203295545 U CN 203295545U
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- cleaning apparatus
- flue gas
- dust removal
- corona discharge
- spray equipment
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- 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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Abstract
The utility model relates to a wet-type grading dust removal device for primary flue gas of a converter. The wet-type grading dust removal device comprises a first-stage coarse dust removal device, a secondary-stage fine dust removal device, a third-stage fine dust removal device, a draught fan and a circulating water system, wherein the first-stage coarse dust removal device is provided with a spraying device I and a sludge drain valve I; the secondary-stage fine dust removal device is provided with a spraying device II and a sludge drain valve II; the circulating water system comprises a wastewater treatment device and a circulating pump, the sludge drain valve I and the sludge drain valve II are respectively connected with an inlet of the wastewater treatment device, and an outlet of the wastewater treatment device is respectively connected with the spraying device I and the spraying device II through the circulating pump. The wet-type grading dust removal device is simple in structure, stable and reliable in operation and low in investment and operation and maintenance cost and can be used for improving the dust removal efficiency through three-stage dust removal and ensuring that the dust content of discharged flue gas after being purified is less than or equal to 10mg/m<3> and is lower than that of flue gas purified by a conventional dry-type dust removal technology and a conventional dry-type dust removal technology, and the emission standard of the flue gas purified by the device reaches the international environmental protection standard.
Description
Technical field
The utility model relates to a kind of cleaning apparatus, is specifically related to flue gas wet classification cleaning apparatus of a kind of converter.
Background technology
It is dry method electric precipitation and wet dedusting that flue gas ash removal technology master of converter current adopts.The dry method electrostatic precipitation technology is comparatively novel technology, has working cost low (water and electric saving), efficiency of dust collection is high (reaches 99.9%, emission gases dust content≤15mg/m
3) advantage, but have simultaneously that one-time investment is high, failure rate is high, to shortcomings such as Influence of production are large, maintenance workload is large, cause numerous users to be difficult to accept.The wet dedusting technology is traditional dedusting technology, be half of dry method, the advantage of stable and reliable operation although have one-time investment, but have simultaneously working cost high (energy consumption is about 2 times of dry method), the poor defect of dust removing effects, especially the emission gases dust content is up to 50mg/m
3～100mg/m
3, can not meet the environmental protection standard of selected areas of China,, although share of market is higher, can not meets environmental protection standard and can't adopt, existing numerous wet dedusting projects also face this environmental protection problem not up to standard simultaneously.
Summary of the invention
In view of this, the purpose of this utility model is to provide flue gas wet classification cleaning apparatus of a kind of converter, and it is simple in structure, and operating safety is stable, the efficiency of dust collection advantages of higher.
the utility model discloses flue gas wet classification cleaning apparatus of a kind of converter, comprise the thick cleaning apparatus of one-level that connects successively, secondary essence cleaning apparatus, three grades of smart cleaning apparatuss, blower fan and circulating water system, the thick cleaning apparatus of described one-level is provided with spray equipment I and mud discharging valve I, described secondary essence cleaning apparatus is provided with spray equipment II and mud discharging valve II, described circulating water system comprises waste disposal plant and recycle pump, described mud discharging valve I is connected with the waste disposal plant entrance and is connected with mud discharging valve II, described waste disposal plant outlet is connected with the spray equipment II with the spray equipment I respectively by recycle pump.
Further, the thick cleaning apparatus of described one-level is water cooling tower, and described secondary essence cleaning apparatus is annular seam washing tower, and described three grades of smart cleaning apparatuss are electrostatic precipitator.
Further, the thick cleaning apparatus of described one-level is water cooling tower, and described secondary essence cleaning apparatus is venturi scrubber, and described three grades of smart cleaning apparatuss are electrostatic precipitator.
Further, described electrostatic precipitator comprises electric field, described electric field comprises housing, be provided with receiving electrode and corona discharge electrode in described housing, described corona discharge electrode is positioned at receiving electrode, described housing is provided with the spray equipment III for the receiving electrode deashing, and described housing is provided with the rapping apparatus for the corona discharge electrode deashing, and described housing is provided with mud discharging valve III; Described mud discharging valve III is connected with the waste disposal plant entrance, and described waste disposal plant outlet is connected with the spray equipment III by recycle pump.
Further, described receiving electrode cross-sectional shape is that equilateral polygon and limit number are greater than 3, in the very star-like barb type corona discharge electrode of described corona or zig-zag corona discharge electrode any one, the contained star-like prickle number in described star-like barb type corona discharge electrode cross section equals equilateral polygon limit, receiving electrode cross section number.
Further, described electrostatic precipitator comprises the electric field that is cascaded more than at least 2.
The beneficial effects of the utility model are: the utlity model has following advantage:
1) by the utility model to flue gas ash removal of converter after, the dust contained flue gas concentration≤10mg/m of discharging after having guaranteed to purify
3,, lower than existing dry dedusting technology and wet dedusting state of the art, its emission standard reaches the International Environmental Protection standard.
2) the utility model is simple in structure, and stable and reliable operation is invested littlely, and operation expense is low.
3) adopt the water spray dedusting technology, avoided the possibility of blast, guaranteed system safety operation.
Description of drawings
For the purpose, technical scheme and the advantage that make utility model is clearer, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model electrostatic precipitator;
Fig. 3 is that the A of Fig. 2 is to view.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
Embodiment 1
as shown in the figure, flue gas wet classification cleaning apparatus of the utility model converter, comprise the thick cleaning apparatus 1 of one-level that connects successively, secondary essence cleaning apparatus 2, three grades of smart cleaning apparatuss 3, blower fan 4 and circulating water system, the thick cleaning apparatus 1 of described one-level is provided with spray equipment I 5 and mud discharging valve I 6, described secondary essence cleaning apparatus 2 is provided with spray equipment II 7 and mud discharging valve II 8, described circulating water system comprises waste disposal plant 9 and recycle pump 10, described mud discharging valve I 6 is connected and is connected with waste disposal plant 9 entrances respectively with mud discharging valve II, described waste disposal plant 9 outlets are connected and are connected with the spray equipment II with spray equipment I 5 respectively by recycle pump 10.
At first the high-temperature flue gas that converter produces enters into the thick cleaning apparatus 1 of one-level of the present utility model, flue gas of water and high temperature dust of process spray equipment I 5 ejections directly contacts slightly imitates dedusting heat exchange simultaneously cooling to flue gas, flue gas is that the transpiration cooling cooling is combined as the master with saturated cooling at the interior cooling method of the thick cleaning apparatus 1 of one-level, be detained heat-exchange time 7 seconds, the dust contained flue gas concentration 15g/m after processing
3, 90 ℃ of left and right of temperature, the muddy water that produces after thick dedusting is discharged by mud discharging valve I 6; Flue gas enters in secondary essence cleaning apparatus 2 more afterwards, water by 7 ejections of spray equipment II carries out the heat exchange cooling with flue gas again, and cooling method cools as main take saturated, simultaneously flue gas is carried out dedusting, be detained heat-exchange time 4 seconds, the dust contained flue gas concentration 180mg/m after processing
3, 75 ℃ of left and right of temperature, the muddy water that produces after dedusting is discharged by mud discharging valve II 8; Flue gas enters three grades of smart cleaning apparatuss 3 subsequently, by flue gas being carried out three grades of ultra-high efficiency dedustings, the dust contained flue gas concentration≤10mg/m after processing
3, temperature≤70 ℃, meet environmental requirement, reaches emission standard.The muddy water that the thick cleaning apparatus 1 of one-level and secondary essence cleaning apparatus 2 produce, be drained into waste disposal plant 9, the clean water that will obtain after then processing, be delivered to spray equipment I 5 and the 7 internal recycle uses of spray equipment II again by recycle pump 10, economize on resources, reduce costs.
In the present embodiment, the thick cleaning apparatus 1 of described one-level is water cooling tower, and described secondary essence cleaning apparatus 2 is annular seam washing tower, described three grades of smart cleaning apparatuss 3 are electrostatic precipitator, by 3-stage dust-removal, improved efficiency of dust collection, guaranteed that the outlet flue gas reaches emission standard.
In the present embodiment, described electrostatic precipitator comprises electric field, described electric field comprises housing 11, be provided with receiving electrode 12 and corona discharge electrode 13 in described housing 11, described corona discharge electrode 13 is positioned at receiving electrode 12, described housing 11 is provided with the spray equipment III 14 for receiving electrode 12 deashings, and described housing 11 is provided with the rapping apparatus 15 for corona discharge electrode 13 deashings, and described housing 11 is provided with mud discharging valve III 16; Described mud discharging valve III 16 is connected with waste disposal plant 9 entrances, and described waste disposal plant 9 outlets are connected with spray equipment III 14 by recycle pump 10.Under the effect of high tension electrostatic field, in flue gas, dust is adsorbed to respectively corona discharge electrode 13 and receiving electrode 12, reaches the dedusting purpose.By the dust that adheres on spray equipment III 14 and the rapping apparatus 15 scavenger precipitation utmost points 12 and corona discharge electrode 13, the muddy water that forms enters waste disposal plant 9 by mud discharging valve III 16, the clean water that will obtain after processing again, again be delivered to spray equipment III 14 by recycle pump 10 and use.
In the present embodiment, described receiving electrode 12 cross-sectional shapes are that equilateral polygon and limit number are greater than 3, the present embodiment receiving electrode 12 limit, cross section numbers are 6 limits, described corona discharge electrode 13 be in star-like barb type corona discharge electrode or zig-zag corona discharge electrode any one, the present embodiment corona discharge electrode 13 is star-like barb type corona discharge electrode, the contained star-like prickle number in described star-like barb type corona discharge electrode cross section equals receiving electrode 12 equilateral polygon limit, cross section numbers, and the discharging sharp-angle of corona discharge electrode 13 effect of corona more at most is also just better.
In the present embodiment, described electrostatic precipitator comprises the electric field that is cascaded more than at least 2, according to on-the-spot actual condition, determines electric field quantity, and the present embodiment electric field quantity is 3.
Embodiment 2
As another embodiment of the present utility model, the thick cleaning apparatus 1 of one-level described in the utility model is water cooling tower, described secondary essence cleaning apparatus 2 is venturi scrubber, described three grades of smart cleaning apparatuss 3 are electrostatic precipitator, the good cooling effect of venturi scrubber to high-temperature gas, have advantages of that volume is little, take up an area less, price is low.
Explanation is finally, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although by with reference to preferred embodiment of the present utility model, the utility model being described, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and not depart from the spirit and scope of the present utility model that appended claims limits.
Claims (6)
1. flue gas wet classification cleaning apparatus of a converter, it is characterized in that: comprise the thick cleaning apparatus of one-level that connects successively, secondary essence cleaning apparatus, three grades of smart cleaning apparatuss, blower fan and circulating water system, the thick cleaning apparatus of described one-level is provided with spray equipment I and mud discharging valve I, described secondary essence cleaning apparatus is provided with spray equipment II and mud discharging valve II, described circulating water system comprises waste disposal plant and recycle pump, described mud discharging valve I is connected with the waste disposal plant entrance and is connected with mud discharging valve II, described waste disposal plant outlet is connected with the spray equipment II with the spray equipment I respectively by recycle pump.
2. flue gas wet classification cleaning apparatus of converter according to claim 1, it is characterized in that: the thick cleaning apparatus of described one-level is water cooling tower, and described secondary essence cleaning apparatus is annular seam washing tower, and described three grades of smart cleaning apparatuss are electrostatic precipitator.
3. flue gas wet classification cleaning apparatus of converter according to claim 1, it is characterized in that: the thick cleaning apparatus of described one-level is water cooling tower, and described secondary essence cleaning apparatus is venturi scrubber, and described three grades of smart cleaning apparatuss are electrostatic precipitator.
4. flue gas wet classification cleaning apparatus of the according to claim 2 or 3 described converters of any one, it is characterized in that: described electrostatic precipitator comprises electric field, described electric field comprises housing, be provided with receiving electrode and corona discharge electrode in described housing, described corona discharge electrode is positioned at receiving electrode, described housing is provided with the spray equipment III for the receiving electrode deashing, and described housing is provided with the rapping apparatus for the corona discharge electrode deashing, and described housing is provided with mud discharging valve III; Described mud discharging valve III is connected with the waste disposal plant entrance, and described waste disposal plant outlet is connected with the spray equipment III by recycle pump.
5. flue gas wet classification cleaning apparatus of converter according to claim 4, it is characterized in that: described receiving electrode cross-sectional shape is that equilateral polygon and limit number are greater than 3, in the very star-like barb type corona discharge electrode of described corona or zig-zag corona discharge electrode any one, the contained star-like prickle number in described star-like barb type corona discharge electrode cross section equals equilateral polygon limit, receiving electrode cross section number.
6. flue gas wet classification cleaning apparatus of converter according to claim 4, it is characterized in that: described electrostatic precipitator comprises the electric field that is cascaded more than at least 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203279440U CN203295545U (en) | 2013-06-07 | 2013-06-07 | Wet-type grading dust removal device for primary flue gas of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203279440U CN203295545U (en) | 2013-06-07 | 2013-06-07 | Wet-type grading dust removal device for primary flue gas of converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203295545U true CN203295545U (en) | 2013-11-20 |
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ID=49571574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203279440U Withdrawn - After Issue CN203295545U (en) | 2013-06-07 | 2013-06-07 | Wet-type grading dust removal device for primary flue gas of converter |
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| CN (1) | CN203295545U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276141A (en) * | 2013-06-07 | 2013-09-04 | 中冶赛迪工程技术股份有限公司 | Converter primary flue gas wet type classification dust removing apparatus |
| CN110339659A (en) * | 2019-07-31 | 2019-10-18 | 中国科学院力学研究所 | One kind being used for the ultra-clean fire tube low temperature wet electric dust collector of converter gas |
| CN110368766A (en) * | 2019-08-07 | 2019-10-25 | 绍兴电力设备有限公司 | A kind of aluminium bar workshop soot processing device and technique |
-
2013
- 2013-06-07 CN CN2013203279440U patent/CN203295545U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276141A (en) * | 2013-06-07 | 2013-09-04 | 中冶赛迪工程技术股份有限公司 | Converter primary flue gas wet type classification dust removing apparatus |
| CN103276141B (en) * | 2013-06-07 | 2015-06-10 | 中冶赛迪工程技术股份有限公司 | Converter primary flue gas wet type classification dust removing apparatus |
| CN110339659A (en) * | 2019-07-31 | 2019-10-18 | 中国科学院力学研究所 | One kind being used for the ultra-clean fire tube low temperature wet electric dust collector of converter gas |
| CN110368766A (en) * | 2019-08-07 | 2019-10-25 | 绍兴电力设备有限公司 | A kind of aluminium bar workshop soot processing device and technique |
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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: 20131120 Effective date of abandoning: 20150610 |
|
| RGAV | Abandon patent right to avoid regrant |