CN107281871A - It is a kind of to be used to sinter/improvement the device of pelletizing wet desulfurization flue gas deep treatment - Google Patents
It is a kind of to be used to sinter/improvement the device of pelletizing wet desulfurization flue gas deep treatment Download PDFInfo
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- CN107281871A CN107281871A CN201710546919.4A CN201710546919A CN107281871A CN 107281871 A CN107281871 A CN 107281871A CN 201710546919 A CN201710546919 A CN 201710546919A CN 107281871 A CN107281871 A CN 107281871A
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- flue gas
- dedusting demister
- tube
- bundled tube
- sinter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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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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- Treating Waste Gases (AREA)
Abstract
The present invention provide it is a kind of be used to sinter/improvement the device of pelletizing wet desulfurization flue gas deep treatment, belong to field of environment engineering technology.The device includes smoke inlet, anode tube, aggregation plate, bundled tube dedusting demister, diffuser ring, anode tube flushing line；Anode tube is designed with bundled tube dedusting demister using bushing type, bundled tube dedusting demister tip designs diffuser ring, assembles plate in bundled tube dedusting demister bottom design.The present invention solves steel industry sintering/pelletizing smoke-gas wet desulfurization tailing problem, and the fouling that traditional wet electric cleaner is present, the problems such as easily occurring burn into efflorescence, high energy consumption and bundled tube dedusting demister easily rinse water slurry blockage problem by anode tube.
Description
Technical field
The present invention relates to field of environment engineering technology, particularly relate to a kind of for sintering/pelletizing wet desulfurization flue gas depth
The improvement device of improvement.
Background technology
Steel and iron industry is a highly energy-consuming, the industry of high pollution, and current China's crude steel yield is up to surpassing 800,000,000 tons, more than the world
The 50% of crude steel yield.
Steel industry includes the processes such as sintering, pelletizing, coking, ironmaking, steel-making, steel rolling, compared with other industry, with production
The features such as industry chain length, internal process are complicated, Air Pollutant Emission point is more, smoke-dust discharge capacity is big, and with point source and face source
Form is dispersed in different technique, is one of exhaust emission rich and influential family in each industrial department.Past during the decade, with steel row
The fast development of industry, although structural adjustment, eliminating backwardness, technological transformation paces and continuing to increase, environmentally friendly performance indicators is obtained effectively
Improve, it is contemplated that iron and steel output radix increases, growth trend, cigarette is presented in industry smoke-dust total emission volumn a few years ago
Dust emission reduction is huge.《Environmental statistics yearbook》Data shows that steel industry smoke-dust discharge capacity occupies in industrial production
Three, especially sintering, pelletizing process smoke-dust discharge capacity occupy the major part of steel industry total emission volumn, and in recent years
Data show that this ratio is improved constantly.
Beijing Tianjin and Hebei Region is that heavy chemical industry development alreadys exceed environment carrying in the main accumulation regions of China's steel production capacity, region
Ability, steel and iron industry is the important pollution sources of smoke-dust in region, sulfur dioxide, discharged nitrous oxides.In state key statistics
93 big-and-middle-sized steel production enterprises in, in Beijing Tianjin and Hebei Region Tianjin have 3, Hebei Province have 20.Produce thousand in region per year
There are Hebei steel enterprise, Shougang Group in iron and steel enterprise more than ton（Shoudu Iron and Steel Co moves steel, Shoudu Iron and Steel Co capital Tang etc.）, Bohai Sea steel enterprise
With the new Wuan steel enterprise in Hebei etc..
Sintering process is the important step of pollution source in steel industry, and flue gas 4000- can be produced by often producing 1 ton of sintering deposit
6000m3Exhaust gas volumn, wet desulphurization is high due to its treatment effeciency, in steel industry application and its extensively.Wet-method desulfurized fume is dragged
Tail phenomenon is serious, therefore can all use various wet electrical dust precipitators, bundled tube dedusting demister and various flue gas depth at present
Processing unit as flue gas conditions of streaking solution.Have at present than the more typical and relatively good technique of processing conditions of streaking
" system that honeycomb wet dust removal demister is combined with bundled tube dedusting demister ".
Such as Chinese patent：" one kind is used to sinter/pelletizing wet desulfurization flue gas deep treatment system ZL201620938274.X
System ", system described by patent is the system being combined by honeycomb wet dust removal demister with bundled tube dedusting demister, should
System is substantially better than the Wet-type electric dust removal system and bundled tube dedusting demister system of commercial Application, but the system is present
The flushing water of honeycomb wet dust removal demister easily blocks the deficiency of bundled tube dedusting demister, so as to cause whole system
Treatment effeciency declines.
The content of the invention
The present invention deposits to solve existing honeycomb wet dust removal demister with bundled tube dedusting demister combined system
Bundled tube dedusting demister easily block, total system operating cost is high, the problems such as treatment effeciency declines with the time, for
Sintering/pelletizing wet desulphurization field is used to sinter/improvement device the of pelletizing wet desulfurization flue gas deep treatment there is provided a kind of
The device includes smoke inlet, anode tube, aggregation plate, bundled tube dedusting demister, diffuser ring and anode tube flush pipe
Road, smoke inlet is located at whole device lowermost end, and anode tube lowermost end is designed with aggregation plate, anode tube and bundled tube dedusting demisting
Device is connected using bushing type, and the top of bundled tube dedusting demister is designed with diffuser ring, and anode tube flushing line is set
In whole device top.
Wherein, the aggregation plate of whole device foot is not only avoided that flue gas is straight directly around bundled tube dedusting demister
Tap into wet electric installation, moreover it is possible to form a negative pressuren zone in smoke inlet position, be that the smooth discharge system of flushing water provides safeguard.
Anode tube is arranged on device most external, and bundled tube dedusting demister is located inside anode tube, anode tube and tube bank
Formula dedusting demister formation bushing type design, the design form ensure that bundled tube dedusting demister not by flushing water slurry
Block.
Diffuser ring is arranged on the topmost of bundled tube dedusting demister, not only increases efficiency of dust collection, moreover it is possible to will export
The water capacity reduction by 5% or so of flue gas, so as to reduce the incidence of conditions of streaking.
Anode tube and the spacing of bundled tube dedusting demister are 30mm-150mm.
It is 60 degree to assemble plate with horizontal direction angle, and vertical direction is highly 40mm-200mm, and cross-directional length is
30mm-150mm, the length of the hypotenuse is 50mm-250mm.
It is 6mm-30mm to assemble the horizontal direction of plate with the spacing of bundled tube dedusting demister bottom.
Diffuser ring cross section is circle, and upper bottom diameter of a circle is respectively 4-14m and 3-13m.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
In such scheme, anode tube is designed with bundled tube dedusting demister using bushing type, i.e., outside is anode tube, and inside is
Bundled tube dedusting demister.Bushing type, which is designed, causes bundled tube dedusting demister no longer by the mud in anode tube flushing water
Block, simulated through laboratory test repeatedly and Fluent, tip designs diffuser ring so that flue gas flow rate reduces 3% or so, and
The uniformity of flow of flue gas is enhanced, the laying dust efficiency of top anode is improved, and to provide rotation at this position containing wet flue gas
Stream, occurs steam-water separation containing wet flue gas, the water capacity of system outlet flue gas effectively is reduced into 5% or so, reduce flue gas again herein
The generation of conditions of streaking.The design of aggregation plate causes smoke inlet position to form a negative pressuren zone, when flushing water pressure is 0.1-
0.2MPa, when flue gas flow rate is 3-5m/s, reachable -100 millimetres of mercury of negative pressure value.The presence of the negative pressuren zone allows anode tube flushing water
More be smoothly discharged system, significantly reduce bundled tube dedusting demister because flushing water and caused by mud block.
Brief description of the drawings
Fig. 1 for the present invention be used for sinter/improvement the apparatus structure schematic diagram of pelletizing wet desulfurization flue gas deep treatment；
Fig. 2 for the present invention be used for sinter/the improvement device middle-jiao yang, function of the spleen and stomach pole pipe of pelletizing wet desulfurization flue gas deep treatment and aggregation plate
Part-structure schematic diagram.
Wherein：1- smoke inlets；2- anode tubes；3- assembles plate；4- bundled tube dedusting demisters；5- diffuser rings；6- sun
Pole pipe flushing line.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
The present invention exists for existing honeycomb wet dust removal demister with bundled tube dedusting demister combined system
Bundled tube dedusting demister easily block, total system operating cost is high, and there is provided one for the problems such as treatment effeciency declines with the time
Kind it is used to sinter/improvement the device of pelletizing wet desulfurization flue gas deep treatment.
As depicted in figs. 1 and 2, smoke inlet 1 is located at whole device lowermost end, the design of the lowermost end of anode tube 2 in the device
There is aggregation plate 3, anode tube 2 is connected with bundled tube dedusting demister 4 using bushing type, and bundled tube dedusting demister 4 is most
Tip designs have diffuser ring 5, and anode tube flushing line 6 is arranged at whole device top.
In specific design, smoke inlet 1 is arranged on the bottom of whole device, flue gas from desulphurization system come out it is laggard from
Smoke inlet 1 enters bundled tube dedusting demister 4, and flue gas flows from bottom to top in bundled tube dedusting demister 4, warp
The diffuser ring 5 positioned at the top of bundled tube dedusting demister 4 is crossed, in the presence of diffuser ring 5, it is left that flue gas flow rate reduces 3%
The right side, so as to improve the laying dust efficiency of top honeycomb wet dust removal demister anode.Diffuser ring 5 containing wet flue gas also to provide
Eddy flow, occurs gas-water separation containing wet flue gas, the water capacity of system outlet flue gas effectively is reduced into 5% or so, so as to subtract again herein
The generation of few flue gas conditions of streaking.The dust that flue gas enters in honeycomb wet dust removal demister, flue gas by diffuser ring 5 is in sun
It is enriched with pole pipe 2, clean flue gas is discharged from honeycomb wet dust removal demister top.
In order to ensure efficiency of dust collection, the improvement device of sintering/pelletizing wet desulfurization flue gas deep treatment is needed periodically to sun
Pole pipe 2 is rinsed.Anode tube flushing line 6 is located at the upper end of honeycomb wet dust removal demister, and flushing water passes through anode tube
Flushing line 6 flows to the surface of anode tube 2, the dust on the surface of anode tube 2 along water (flow) direction through the outflow system of overbunching plate 3 outside.
The design of aggregation plate 3 causes its side to form a negative pressuren zone, and when flushing water pressure is 0.1-0.2MPa, flue gas flow rate is 3-
During 5m/s, reachable -100 millimetres of mercury of negative pressure value.The presence of the negative pressuren zone allows the flushing water of anode tube 2 to be more smoothly discharged
System, significantly reduce bundled tube dedusting demister 4 because flushing water and caused by mud block.
The design spacing of the bundled tube dedusting demister 4 of anode tube 2 of the present invention is 30mm-150mm；Aggregation plate 3 is designed
It it is 60 degree with horizontal direction angle, vertical direction is highly 40mm-200mm, and cross-directional length is 30mm-150mm, and hypotenuse is long
Spend for 50mm-250mm；It is 6mm-30mm to assemble the horizontal direction of plate 3 with the spacing of the bottom of bundled tube dedusting demister 4；
Bottom diameter of a circle is respectively 4-14m, 3-13m in the design of diffuser ring 5.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of be used to sinter/improvement the device of pelletizing wet desulfurization flue gas deep treatment, it is characterised in that：Including smoke inlet
（1）, anode tube（2）, aggregation plate（3）, bundled tube dedusting demister（4）, diffuser ring（5）With anode tube flushing line（6）, cigarette
Gas entrance（1）Positioned at whole device lowermost end, anode tube（2）Lowermost end is designed with aggregation plate（3）, anode tube（2）With bundled tube
Dedusting demister（4）Connected using bushing type, bundled tube dedusting demister（4）Top be designed with diffuser ring（5）, sun
Pole pipe flushing line（6）It is arranged at whole device top.
2. according to claim 1 be used to sinter/improvement the device of pelletizing wet desulfurization flue gas deep treatment, its feature exists
In：The anode tube（2）It is arranged on device most external, bundled tube dedusting demister（4）Positioned at anode tube（2）Inside, anode
Pipe（2）With bundled tube dedusting demister（4）Form bushing type design.
3. according to claim 1 be used to sinter/improvement the device of pelletizing wet desulfurization flue gas deep treatment, its feature exists
In：The anode tube（2）With bundled tube dedusting demister（4）Spacing be 30mm-150mm.
4. according to claim 1 be used to sinter/improvement the device of pelletizing wet desulfurization flue gas deep treatment, its feature exists
In：The aggregation plate（3）It it is 60 degree with horizontal direction angle, vertical direction is highly 40mm-200mm, cross-directional length is
30mm-150mm, the length of the hypotenuse is 50mm-250mm.
5. according to claim 1 be used to sinter/improvement the device of pelletizing wet desulfurization flue gas deep treatment, its feature exists
In：The aggregation plate（3）Horizontal direction and bundled tube dedusting demister（4）The spacing of bottom is 6mm-30mm.
6. according to claim 1 be used to sinter/improvement the device of pelletizing wet desulfurization flue gas deep treatment, its feature exists
In：The diffuser ring（5）Cross section is circle, and upper bottom diameter of a circle is respectively 4-14m and 3-13m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546919.4A CN107281871B (en) | 2017-07-06 | 2017-07-06 | Improved device for deep treatment of sintering/pelletizing wet desulfurization flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546919.4A CN107281871B (en) | 2017-07-06 | 2017-07-06 | Improved device for deep treatment of sintering/pelletizing wet desulfurization flue gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107281871A true CN107281871A (en) | 2017-10-24 |
| CN107281871B CN107281871B (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710546919.4A Active CN107281871B (en) | 2017-07-06 | 2017-07-06 | Improved device for deep treatment of sintering/pelletizing wet desulfurization flue gas |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4305909A (en) * | 1979-10-17 | 1981-12-15 | Peabody Process Systems, Inc. | Integrated flue gas processing system |
| JP2008202071A (en) * | 2007-02-19 | 2008-09-04 | Nippon Steel Engineering Co Ltd | Method for operating blast furnace gas cleaning facility |
| CN106179741A (en) * | 2016-07-14 | 2016-12-07 | 河北安维环境工程有限公司 | Composite type bundle electrostatic precipitator |
| CN106215538A (en) * | 2016-08-24 | 2016-12-14 | 北京北科环境工程有限公司 | One is used for sintering/pelletizing wet desulfurization flue gas deep treatment system |
| CN106390664A (en) * | 2016-12-06 | 2017-02-15 | 山东国舜建设集团有限公司 | Efficient static and rotational flow combined sulfuric acid mist synergic particle removing device for coal-fired flue gas |
| CN106582121A (en) * | 2017-01-11 | 2017-04-26 | 南京宇行环保科技有限公司 | Tube bundle type dedusting and demisting device with liquid collection function |
| CN206168156U (en) * | 2016-10-09 | 2017-05-17 | 青岛国标环保有限公司 | Modular high -efficient dust removal defogging device |
| CN206911051U (en) * | 2017-07-06 | 2018-01-23 | 北京北科环境工程有限公司 | It is a kind of to be used to sinter/improvement the device of pelletizing wet desulfurization flue gas deep treatment |
-
2017
- 2017-07-06 CN CN201710546919.4A patent/CN107281871B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4305909A (en) * | 1979-10-17 | 1981-12-15 | Peabody Process Systems, Inc. | Integrated flue gas processing system |
| JP2008202071A (en) * | 2007-02-19 | 2008-09-04 | Nippon Steel Engineering Co Ltd | Method for operating blast furnace gas cleaning facility |
| CN106179741A (en) * | 2016-07-14 | 2016-12-07 | 河北安维环境工程有限公司 | Composite type bundle electrostatic precipitator |
| CN106215538A (en) * | 2016-08-24 | 2016-12-14 | 北京北科环境工程有限公司 | One is used for sintering/pelletizing wet desulfurization flue gas deep treatment system |
| CN206168156U (en) * | 2016-10-09 | 2017-05-17 | 青岛国标环保有限公司 | Modular high -efficient dust removal defogging device |
| CN106390664A (en) * | 2016-12-06 | 2017-02-15 | 山东国舜建设集团有限公司 | Efficient static and rotational flow combined sulfuric acid mist synergic particle removing device for coal-fired flue gas |
| CN106582121A (en) * | 2017-01-11 | 2017-04-26 | 南京宇行环保科技有限公司 | Tube bundle type dedusting and demisting device with liquid collection function |
| CN206911051U (en) * | 2017-07-06 | 2018-01-23 | 北京北科环境工程有限公司 | It is a kind of to be used to sinter/improvement the device of pelletizing wet desulfurization flue gas deep treatment |
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|---|---|
| CN107281871B (en) | 2023-05-09 |
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