CN205316299U - Recoverable hot -blast furnace of flue gas - Google Patents
Recoverable hot -blast furnace of flue gas Download PDFInfo
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- CN205316299U CN205316299U CN201521101752.3U CN201521101752U CN205316299U CN 205316299 U CN205316299 U CN 205316299U CN 201521101752 U CN201521101752 U CN 201521101752U CN 205316299 U CN205316299 U CN 205316299U
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- China
- Prior art keywords
- flue gas
- ventpipe
- gyrotron
- recyclable
- hotblast stove
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Abstract
The utility model provides a recoverable hot -blast furnace of flue gas belongs to the boiler field, is equipped with tuber pipe, a plurality of ventilation pipe and gyrotron, and can loop through tuber pipe, ventilation pipe and gyrotron and introduce furnace with the flue gas following the chimney, the gyrotron can make the flue gas form the air current that circles round when getting into furnace to drive the rotation of all air of furnace, make the flue gas burning of interior fuel of furnace and recovery even, abundant, improve combustion efficiency. The utility model discloses reduce the fume emission, realize the recycle of flue gas, make boiler environmental protection more, practicality.
Description
Technical field
The utility model belongs to field of boilers, particularly relates to the hotblast stove that a kind of flue gas is recyclable.
Background technology
Adopting solid-fuelled hotblast stove to use at present very extensive, its solid particulate adopted comprises coal, coke and biological particles. Wherein biological particles hotblast stove is widely used in the various heat energy industries such as drying plant, ironing equipment, baking finish unit, industry annealing furnace. Have pollute little, without advantages such as Litter discharges. But in actual motion, hotblast stove still can produce fume emission, comprises the sufficient nitrogen protoxide of unburn and solid granule material in this flue gas. Above-mentioned substance is disposed in air, environment can be caused certain pollution, be unfavorable for environmental protection; On the other hand, hotblast stove can produce the sufficient solid granule material of a large amount of unburns, is directly discharged the efficiency reducing burning, also improves Financial cost.
The plasterboard hot-blast stove fume reclaiming system of the practical novel offer that application number is 201420075562.8, is provided with multiple induced exhaust in smoke outlet periphery, hotblast stove top, is introduced in air compartment by flue gas combustion-supporting by multiple induced exhaust, it is achieved that the recycling of flue gas. But it changes air composition by after the air mixed in the flue gas of discharge and air compartment so that efficiency of combustion declines to some extent, and air compartment is also caused certain pollution by flue gas, will improve the wastage rate of air compartment. In addition, its complex structure, manufacturing cost height, and not easily common hotblast stove is reequiped.
Summary of the invention
For being reclaimed by flue gas, decreasing pollution discharges, and the utility model provides the recyclable hotblast stove of a kind of flue gas, the flue gas of discharge can be reclaimed, be processed, reduce smoke discharge amount, it is to increase efficiency of combustion, reduction Financial cost.
For achieving the above object, the hotblast stove that a kind of flue gas that the utility model provides is recyclable, comprises body of heater and flue gas recovery device. Described flue gas recovery device comprises airduct, ventpipe and some gyrotrons, and described airduct two ends are connected with chimney, ventpipe respectively. Described ventpipe is provided with some gyrotrons, and the gyrotron the other end stretches to burner hearth. Described gyrotron is horizontally disposed with, and its one end communicates with the first ventpipe, and its other end opening is angle, and the angle of all gyrotrons is towards being counterclockwise or clockwise direction. Flue gas through airduct to ventpipe, then by dispersion gyrotron enter in burner hearth burn.
Further, described ventpipe is horizontally disposed with around described body of heater.Horizontally disposed ventpipe is convenient to install, process and maintenance.
Further, air outlet, described burner hearth top is provided with cleaning apparatus. Described cleaning apparatus is decanter type cleaning apparatus, can greatly reduce the dust clearing times of heat transfer tube, and reduces the grey particle concentration in flue gas.
Further, being also provided with some ventpipes in described body of heater, all the other ventpipes and above-mentioned ventpipe arrange identical, be provided with pipe connecting and be connected between ventpipe. Pipe connecting bore to be not less than the caliber size of ventpipe, is convenient to the conveying of flue gas.
Further, described every root ventpipe is equipped with 4 gyrotrons. The gyrotron convolution best results that this quantity is arranged, the air-flow of every root gyrotron can not disturb the normal discharge of other air-flows.
Further, it is provided with valve above described chimney and airduct Link Port.
Further, described gyrotron is uniformly distributed around hotblast stove body.
The utility model principle of work and useful effect thereof are as follows: (1) is generally provided with main air blower in the lower section of chimney smoke import, when valve closes on chimney, main air blower produces high pressure and flue gas is pressed into airduct to ventpipe, owing to burner hearth is negative pressure, can by flue gas sucking-off from gyrotron, under the two acts on simultaneously, in chimney, the flue gas of discharge enters ventpipe by airduct, having drawn four gyrotrons on ventpipe again stretches in burner hearth, it is not necessary to additionally arrange blower fan. Owing to gyrotron opening of one end in burner hearth is angle, and towards unanimously, the flue gas introduced from chimney forms the air-flow of convolution when entering burner hearth, and described gyration airflow also drives the air in the air of blast inlet, burner hearth to rotate while rotation simultaneously, and mixes with the two. First, flue gas itself has heat, and mixing can improve the temperature of the air of blast inlet after rotating, and reduces freezing air to the impact of fire box temperature; Secondly, flue gas itself has certain density oxygen, also can be burning oxygen supply; Finally, imperfect combustion in flue gas various oxide compounds, finely ground particle substance are also able to sufficient combustion. Described gyration airflow can make the smoke combustion of burner hearth fuel and recovery even, abundant, it is to increase efficiency of combustion. And when ventpipe and gyrotron are horizontally disposed with, the gyration airflow of hard intensity can be produced fast, also it is convenient to produce simultaneously, installs and packaging, reduce processing and the difficulty of repacking.
(2) it is the organic efficiency of the gyration airflow intensity in increase burner hearth, increase flue gas, the utility model can arrange multiple ventpipe on the basis of above-mentioned ventpipe, the setting of all the other ventpipes is identical with above-mentioned ventpipe, all the other every root ventpipes are equipped with the gyrotron of some amount, described gyrotron is uniformly distributed around hotblast stove itself, and the setting of gyrotron also arranges identical with the gyrotron on above-mentioned ventpipe. It is provided with pipe connecting between ventpipe to be connected, flue gas enters all the other ventpipes by pipe connecting, enter in burner hearth through gyrotron again, forming multiple gyration airflow, identical owing to arranging, the direction that gyration airflow rotates is also identical simultaneously, the intensity increased after multiple gyration airflow superposition can drive the rotation of all air in burner hearth completely, make fuel and smoke combustion more abundant, both increased economic efficiency, again environmental protection.
(3) it is the discharge reducing Litter, pollutent in flue gas further, and reduce dust accretions in heat transfer tube, minimizing clear ash number of times, the utility model is provided with decanter type cleaning apparatus at the air port place that goes out of burner hearth, and the dust in ash bucket only need to be removed by operator going out timing on air port.
In sum, the utility model provides the recyclable hotblast stove of a kind of flue gas, the flue gas introduced from chimney can be formed when entering burner hearth the air-flow of convolution, thus drive the rotation of all air in burner hearth, the smoke combustion making burner hearth fuel and recovery is evenly, fully, it is to increase efficiency of combustion.
Accompanying drawing explanation
Fig. 1 is the recyclable hotblast stove integrated connection schematic diagram of a kind of flue gas;
Fig. 2 is the gyrotron schematic diagram of the recyclable hotblast stove of a kind of flue gas.
Shown in figure: body of heater 1; Airduct 2; Pipe connecting 3; Ventpipe 1; Ventpipe 25; Heat transfer tube 6; Blower fan 7; Chimney 8; Chimney valve 9; Cleaning apparatus 10; Gyrotron 11; Burner hearth 12.
Embodiment
As shown in Figure 1, in specific embodiment, airduct 2 two ends are connected with chimney 8, pipe connecting 3 respectively, and pipe connecting 3 is vertically arranged, and are connected with ventpipe 1, ventpipe 25. Arranging of ventpipe 1, both ventpipes 25 is identical, is and is horizontally disposed with, at regular intervals between the two. It is provided with chimney valve 9 above chimney 8 and airduct 2 interface, below the exhanst gas outlet of heat transfer tube 6, it is provided with blower fan 7. The air port that goes out on burner hearth 12 top is provided with cleaning apparatus 10. Heat transfer tube 6 it is provided with, for heat-shift between chimney 8 and body of heater 1.
As shown in Figure 2, in specific embodiment, airduct 2 two ends are connected with chimney 8, pipe connecting 3 respectively, and pipe connecting 3 is vertically arranged, and are connected with ventpipe 1. Ventpipe 1 is arranged in the form of a ring around body of heater 1, and ventpipe 1 is provided with four gyrotrons 11, and gyrotron 11 is evenly distributed on around body of heater 1 around body of heater 1, orthogonal between adjacent gyrotron 11.
Shown in composition graphs 1, Fig. 2, the flue gas blowout chimney 8 that blower fan 7 will be discharged from the exhanst gas outlet of heat transfer tube 6, after chimney valve 9 is closed, only allow that small portion flue gas is discharged by chimney 8, overwhelming majority flue gas is blown in airduct 2 under the high pressure of blower fan 7, flue gas enters ventpipe 1 along airduct 2 pipeline, then enters ventpipe 25 through pipe connecting 3. Owing to the burner hearth 12 of body of heater 1 exists negative pressure, so generation suction, flue gas is passed through from ventpipe 1, ventpipe 25 gyrotron 11 sucking-off, owing to gyrotron 11 is angle at the opening of burner hearth 12, and it is towards unanimously, the flue gas being sucked out forms gyration airflow at burner hearth 12, thus the air driving burner hearth 12 all rotates, the fuel of burner hearth 12 is fully contacted with air, and then Thorough combustion, the flammable solid finely ground particle substance in flue gas and not clean-burning various oxide compound are also burnt completely simultaneously. Completely burning after hot blast due to density less, on rise to the top of burner hearth 12, will through decanter type cleaning apparatus 10, solid particulate matter bigger in elimination hot blast, reduce the content of particulate matter in flue gas, emissions reduction flue gas, to the pollution of air, also facilitates the process of the partial fume reclaimed simultaneously. Flue gas after filtration enters after heat transfer tube 6 carries out heat exchange and enters chimney 8 by the exhanst gas outlet of heat transfer tube 6, enters and circulates next time.
The utility model can arrange some ventpipes again on ventpipe 1, ventpipe 25, the setting of all the other ventpipes and ventpipe 1, ventpipe 25 arrange identical, all the other every root ventpipes are equipped with the gyrotron 11 of some amount, the quantity of gyrotron 11 can not be all identical, but will around the level of body of heater 1 own, be uniformly distributed. It is provided with pipe connecting 3 between each ventpipe to be connected, airduct 2 is connected with pipe connecting 3, and flue gas enters all the other ventpipes by pipe connecting 3, then enters in burner hearth 12 through gyrotron 11, form multiple gyration airflow simultaneously, identical owing to arranging, the direction that gyration airflow rotates is also identical, and the intensity increased after multiple gyration airflow superposition can drive the rotation of all air in burner hearth 12 completely, make fuel and smoke combustion more abundant, reduce the discharge of chimney 8 flue gas, both increased economic efficiency, again environmental protection.
In sum, the utility model provides the recyclable hotblast stove of a kind of flue gas, it is provided with some gyrotrons 11, the flue gas introduced from chimney 8 can be formed the air-flow of convolution when entering burner hearth 12, thus drive the rotation of all air of burner hearth 12, the smoke combustion making burner hearth 12 fuel and recovery is evenly, fully, it is to increase efficiency of combustion.
Claims (7)
1. the hotblast stove that flue gas is recyclable, comprises body of heater and flue gas recovery device, it is characterised in that: described flue gas recovery device comprises airduct, ventpipe and some gyrotrons, and described airduct two ends are connected with chimney, ventpipe respectively; Described ventpipe is provided with some gyrotrons, and the gyrotron the other end stretches to burner hearth; Described gyrotron is horizontally disposed with, and its one end communicates with ventpipe, and its other end opening is angle, and the angle of all gyrotrons is towards being counterclockwise or clockwise direction.
2. the hotblast stove that a kind of flue gas according to claim 1 is recyclable, it is characterised in that: described ventpipe is horizontally disposed with around described body of heater.
3. the hotblast stove that a kind of flue gas according to claim 1 is recyclable, it is characterised in that: the burner hearth air outlet place of described body of heater is provided with cleaning apparatus.
4. the hotblast stove that a kind of flue gas according to claim 1 is recyclable, it is characterised in that: being also provided with some ventpipes in described body of heater, described some ventpipes and above-mentioned ventpipe arrange identical, be provided with pipe connecting and be connected between ventpipe.
5. the hotblast stove that a kind of flue gas according to claim 1 or 4 is recyclable, it is characterised in that: described every root ventpipe is provided with 4 gyrotrons.
6. the hotblast stove recyclable according to the arbitrary described a kind of flue gas of Claims 1-4, it is characterised in that: it is provided with valve above described chimney and airduct Link Port.
7. the hotblast stove that a kind of flue gas according to claim 1 or 4 is recyclable, it is characterised in that: described gyrotron is uniformly distributed around body of heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521101752.3U CN205316299U (en) | 2015-12-28 | 2015-12-28 | Recoverable hot -blast furnace of flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521101752.3U CN205316299U (en) | 2015-12-28 | 2015-12-28 | Recoverable hot -blast furnace of flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205316299U true CN205316299U (en) | 2016-06-15 |
Family
ID=56198354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521101752.3U Expired - Fee Related CN205316299U (en) | 2015-12-28 | 2015-12-28 | Recoverable hot -blast furnace of flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205316299U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005895A (en) * | 2019-04-04 | 2019-07-12 | 中国核电工程有限公司 | Reducing elbow and the pipe arrangement connection method for utilizing reducing elbow |
| CN113312861A (en) * | 2021-06-29 | 2021-08-27 | 江西理工大学 | CFD-DEM coupling model-based method for analyzing gas-solid flow stability of blast furnace cyclone zone |
-
2015
- 2015-12-28 CN CN201521101752.3U patent/CN205316299U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005895A (en) * | 2019-04-04 | 2019-07-12 | 中国核电工程有限公司 | Reducing elbow and the pipe arrangement connection method for utilizing reducing elbow |
| CN113312861A (en) * | 2021-06-29 | 2021-08-27 | 江西理工大学 | CFD-DEM coupling model-based method for analyzing gas-solid flow stability of blast furnace cyclone zone |
| CN113312861B (en) * | 2021-06-29 | 2022-09-09 | 江西理工大学 | CFD-DEM coupling model-based method for analyzing gas-solid flow stability of blast furnace cyclone zone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20191228 |