CN103240014B - Flue gas mixing arrangement - Google Patents
Flue gas mixing arrangement Download PDFInfo
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- CN103240014B CN103240014B CN201310215083.1A CN201310215083A CN103240014B CN 103240014 B CN103240014 B CN 103240014B CN 201310215083 A CN201310215083 A CN 201310215083A CN 103240014 B CN103240014 B CN 103240014B
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- mixing drum
- flue gas
- mixing
- air
- mixed wind
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- 239000003546 flue gas Substances 0.000 title claims abstract description 50
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000000428 dust Substances 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 3
- 238000005453 pelletization Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Separating Particles In Gases By Inertia (AREA)
Abstract
The present invention discloses a kind of flue gas mixing arrangement, at least comprises coaxial the tangent line air intake mixing drum, mixing drum and the mixed wind inner core that arrange, wherein; Described air intake mixing drum two ports are in the axial direction respectively by the air inlet of Flange joint in removing roof dust pipe end, mixing drum; Described air intake mixing drum be provided with in tangential direction one with the tangent line intake stack that is communicated with of inside, described tangent line intake stack is connected to blast furnace high-temperature flue gas outlet side; Described mixing drum is provided with air inlet and air outlet; Described mixing drum inside is provided with described mixed wind inner core, and described mixed wind inner tank theca is provided with multiple hybrid blade.Flue gas mixing arrangement structure of the present invention is simple, and construction install convenience, close to the fabrication and installation of common roof cover flue, does not need independent occupation of land; Flue gas good mixing effect, device resistance is low, saves dust pelletizing system operating cost.
Description
Technical field
The present invention relates to a kind of blast furnace flue gas heat sink, particularly relate to a kind of flue gas mixing arrangement being applicable to furnace high-temperature flue gas and roof cover normal temperature flue gas hybrid cooling in iron and steel enterprise's electric furnace production.
Background technology
In current industrial processes, relate to pyrolytic semlting facility, in industrial furnace production process, produce a large amount of high-temperature flue gas.As in iron and steel enterprise's steelmaking process, in electric furnace smelting process, the furnace high-temperature flue gas of generation reaches 1300 DEG C, and generally after water-cooled flue, wind cooler cooling, flue-gas temperature still reaches more than 250 DEG C; The high-temperature flue gas purification of about 250 DEG C, generally has two kinds of purification schemes: one is arrange independent dust pelletizing system, and another scheme, after being mixed with the flue gas that the places such as roof cover discharge by furnace high-temperature flue gas, arranges the dust pelletizing system of merging.
Arrange in the dust pelletizing system of merging at furnace high-temperature flue gas and roof cover flue gas, how to allow furnace high-temperature flue gas and roof cover flue gas evenly, lower resistance lose mixes, and is the place designing deficiency in a lot of engineer applied.Common design adopts hybrid tower structure: roof flue gas is from mixing column lower side to entering in tower, furnace high-temperature flue gas sucks from tangential direction in the middle part of tower, two strands of flue gases mix in tower, rotate to top of tower, discharge from tower top pipeline, a conical ash bucket and star lock gas unloading valve are established in tower bottom, and in inner flue gas of the stove, bulky grain flue dust can settle down and regularly discharge.This tower is similar to vertical cyclone deduster structure, two strands of flue gases all need through declining simultaneously, multiple elbows such as rising, flue gas easily forms eddy current in void tower, therefore this mixing column resistance is larger, general at more than 700Pa, pipeline lengthens simultaneously, tower needs engaged position, steel construction consumption is larger, in actual motion, due to flue gas resistance only about the 3000-3500Pa of roof parts, and in stove the resistance of smoke-exhaust pipeline (disregarding mixing column) at about 5000Pa, add this tower resistance, the resistance of whole dust pelletizing system needs to arrange about 5700-6000Pa, dedusting fan total head is selected at about 6500-6800Pa, dust pelletizing system energy consumption is very large, in stove, often because resistance is large, smoke discharging effect is poor for smoke evacuation system.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of structure simple, reliable flue gas mixing arrangement.
For achieving the above object, a kind of flue gas mixing arrangement of the present invention, at least comprises coaxial the tangent line air intake mixing drum, mixing drum and the mixed wind inner core that arrange, wherein;
Described air intake mixing drum two ports are in the axial direction respectively by the air inlet of Flange joint in removing roof dust pipe end, mixing drum; Described air intake mixing drum be provided with in tangential direction one with the tangent line intake stack that is communicated with of inside, described tangent line intake stack is connected to blast furnace high-temperature flue gas outlet side;
Described mixing drum is provided with air inlet and air outlet; Described mixing drum inside is provided with described mixed wind inner core, and described mixed wind inner tank theca is provided with multiple hybrid blade.
Preferably, the air inlet of described mixing drum adopts reducer pipe structure, and the mouth of pipe of described reducer pipe is by Flange joint air intake mixing drum.
Preferably, described mixed wind inner core profile adopts bullet streamlined, and its bullet portion is towards mixing drum air inlet.
Preferably, the air outlet of described mixing drum arranges a chimney fan.
Preferably, ash bucket is set at the air-out position pars infrasegmentalis of described mixing drum.
Preferably, the exit of described ash bucket is provided with star lock gas unloading valve, and star lock gas unloading valve is provided with hand operated gate valve; Manual access door is also provided with in the bottom of ash bucket.
Preferably, described hybrid blade adopts propeller blade.
Preferably, described mixing drum is also provided with inspection manhole.
Beneficial effect of the present invention is:
1, flue gas mixing arrangement structure of the present invention is simple, and construction install convenience, close to the fabrication and installation of common roof cover flue, does not need independent occupation of land;
2, flue gas good mixing effect, device resistance is low, saves dust pelletizing system operating cost;
3, can effectively remove big dust particle in inner flue gas of the stove, prevent from burning filter bag;
4, the ash bucket that arranges of mixing arrangement end can the big dust particle of store collected, is regularly transported to dust pelletizing system ash-storing bin and utilizes.
Accompanying drawing explanation
Fig. 1 is the structural representation of flue gas mixing arrangement described in the embodiment of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the left view of Fig. 1.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described.
As shown in Figure 1-Figure 3, a kind of flue gas mixing arrangement described in the embodiment of the present invention, at least comprises coaxial the tangent line air intake mixing drum 2, mixing drum 1 and the mixed wind inner core 3 that arrange, wherein;
Described air intake mixing drum two ports are in the axial direction respectively by the air inlet of Flange joint in removing roof dust pipe end, mixing drum; Described air intake mixing drum be provided with in tangential direction one with the tangent line intake stack 4 that is communicated with of inside, described tangent line intake stack is connected to blast furnace high-temperature flue gas outlet side;
Described mixing drum is provided with air inlet and air outlet 8, and wherein, the air outlet of described mixing drum arranges a chimney fan 7, and the air inlet of described mixing drum adopts reducer pipe structure, and the mouth of pipe of described reducer pipe 6 is by Flange joint air intake mixing drum; Described mixing drum inside is provided with described mixed wind inner core, and described mixed wind inner tank theca is provided with multiple hybrid blade 5, and described hybrid blade adopts propeller blade.
The tangent line intake stack of furnace high-temperature flue gas on air intake mixing drum enters in air intake mixing drum, and and the hybrid blade turning effort of normal temperature flue gas on mixed wind inner core under Homogeneous phase mixing, mixed flue-gas temperature reduces, and enters deduster purification by the air outlet of mixing drum.
Further explanation is explained as the embodiment of the present invention:
Described mixed wind inner core profile adopts bullet streamlined, and its bullet portion is towards mixing drum air inlet.Take such design can reduce air intake resistance.
Ash bucket 9 is set at the air-out position pars infrasegmentalis of described mixing drum and is used for store collected dust.Being provided with star lock gas unloading valve 10 in the exit of described ash bucket, regularly opening unloading valve and unload ash, being then transported to the utilization of dust pelletizing system ash-storing bin by burying scraper ash-transmission machine.Cut off when star lock gas unloading valve is provided with hand operated gate valve 11 for overhauling; Manual access door 12 is also provided with in the bottom of ash bucket.Described mixing drum is also provided with inspection manhole 13, for air mixing device internal overhaul.
The course of work of the present invention is:
The high-temperature flue gas (about 250 DEG C) of discharging in electric furnace to be entered in air intake mixing drum by tangent line intake stack and shunts through mixed wind inner core with roof cover normal temperature flue gas, by the mixed flow Homogeneous phase mixing of the hybrid blade of propeller blade shape, mixed flue-gas temperature, lower than 110 DEG C, enters deduster purification by air outlet.In inner flue gas of the stove, big dust particle falls into ash bucket storage at eddy flow end, and star lock gas unloading valve regularly unloads ash, delivers to dust pelletizing system ash-storing bin utilize by the dust burying scraper ash-transmission machine contribute sedimentation.
Above; be only preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should define with claim is as the criterion.
Claims (6)
1. a flue gas mixing arrangement, is characterized in that, at least comprises coaxial the tangent line air intake mixing drum, mixing drum and the mixed wind inner core that arrange, wherein;
Described air intake mixing drum two ports are in the axial direction respectively by the air inlet of Flange joint in removing roof dust pipe end, mixing drum; Described air intake mixing drum be provided with in tangential direction one with the tangent line intake stack that is communicated with of inside, described tangent line intake stack is connected to blast furnace high-temperature flue gas outlet side;
Described mixing drum is provided with air inlet and air outlet; Described mixing drum inside is provided with described mixed wind inner core, and described mixed wind inner tank theca is provided with multiple hybrid blade;
The air inlet of described mixing drum adopts reducer pipe structure, and the mouth of pipe of described reducer pipe is by Flange joint air intake mixing drum;
Described mixed wind inner core profile adopts bullet streamlined, and its bullet portion is towards mixing drum air inlet.
2. flue gas mixing arrangement according to claim 1, is characterized in that, the air outlet of described mixing drum arranges a chimney fan.
3. flue gas mixing arrangement according to claim 1, is characterized in that, arranges ash bucket at the air-out position pars infrasegmentalis of described mixing drum.
4. flue gas mixing arrangement according to claim 3, is characterized in that, the exit of described ash bucket is provided with star lock gas unloading valve, and star lock gas unloading valve is provided with hand operated gate valve; Manual access door is also provided with in the bottom of ash bucket.
5. flue gas mixing arrangement according to claim 1, is characterized in that, described hybrid blade adopts propeller blade.
6. flue gas mixing arrangement according to claim 1, is characterized in that, described mixing drum is also provided with inspection manhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215083.1A CN103240014B (en) | 2013-05-30 | 2013-05-30 | Flue gas mixing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215083.1A CN103240014B (en) | 2013-05-30 | 2013-05-30 | Flue gas mixing arrangement |
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| Publication Number | Publication Date |
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| CN103240014A CN103240014A (en) | 2013-08-14 |
| CN103240014B true CN103240014B (en) | 2015-09-02 |
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| CN201310215083.1A Active CN103240014B (en) | 2013-05-30 | 2013-05-30 | Flue gas mixing arrangement |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525009A (en) * | 2014-12-11 | 2015-04-22 | 北京京诚泽宇能源环保工程技术有限公司 | Flue gas mixed flow tower |
| CN104645845B (en) * | 2015-03-18 | 2017-01-11 | 魏伯卿 | Large/small-drift diameter pipe phase mixing pipeline mixer |
| CN105276996B (en) * | 2015-11-30 | 2017-09-01 | 中冶华天工程技术有限公司 | The mixed wind system of flue gas recirculation sintering |
| CN110465213B (en) * | 2018-05-12 | 2022-07-12 | 中国石油化工股份有限公司 | Gas cyclone mixer |
| CN116251491A (en) * | 2021-12-09 | 2023-06-13 | 中冶北方（大连）工程技术有限公司 | Mixing device |
| CN118341285B (en) * | 2024-06-11 | 2025-06-13 | 北京怀柔实验室 | Large temperature difference gas mixing, purification and rectification device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2499610Y (en) * | 2001-05-28 | 2002-07-10 | 卜维平 | Induced fire-extinguish smoke exhaust blower of motor heat radiation system |
| CN201300019Y (en) * | 2008-11-18 | 2009-09-02 | 无锡红旗除尘设备有限公司 | Smoke steady flow collection drum |
| CN202638224U (en) * | 2011-12-26 | 2013-01-02 | 武汉都市环保工程技术股份有限公司 | Vertical-type swirl dedusting air mixer |
| CN202715368U (en) * | 2012-07-20 | 2013-02-06 | 宝山钢铁股份有限公司 | Flue gas mixer |
| CN103111224A (en) * | 2012-11-14 | 2013-05-22 | 辽宁省电力有限公司电力科学研究院 | Flash mixer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060867U (en) * | 1989-08-30 | 1990-08-22 | 王力武 | Cyclone separator for spray furnace cap |
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2013
- 2013-05-30 CN CN201310215083.1A patent/CN103240014B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2499610Y (en) * | 2001-05-28 | 2002-07-10 | 卜维平 | Induced fire-extinguish smoke exhaust blower of motor heat radiation system |
| CN201300019Y (en) * | 2008-11-18 | 2009-09-02 | 无锡红旗除尘设备有限公司 | Smoke steady flow collection drum |
| CN202638224U (en) * | 2011-12-26 | 2013-01-02 | 武汉都市环保工程技术股份有限公司 | Vertical-type swirl dedusting air mixer |
| CN202715368U (en) * | 2012-07-20 | 2013-02-06 | 宝山钢铁股份有限公司 | Flue gas mixer |
| CN103111224A (en) * | 2012-11-14 | 2013-05-22 | 辽宁省电力有限公司电力科学研究院 | Flash mixer |
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| CN103240014A (en) | 2013-08-14 |
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