CN112815728A - Flue gas purification device of on-board cooling sintering machine - Google Patents
Flue gas purification device of on-board cooling sintering machine Download PDFInfo
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- CN112815728A CN112815728A CN202110088409.3A CN202110088409A CN112815728A CN 112815728 A CN112815728 A CN 112815728A CN 202110088409 A CN202110088409 A CN 202110088409A CN 112815728 A CN112815728 A CN 112815728A
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- 238000005245 sintering Methods 0.000 title claims abstract description 191
- 238000001816 cooling Methods 0.000 title claims abstract description 76
- 239000003546 flue gas Substances 0.000 title claims abstract description 53
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000000746 purification Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 70
- 239000000428 dust Substances 0.000 claims description 19
- 238000006477 desulfuration reaction Methods 0.000 claims description 12
- 230000023556 desulfurization Effects 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 claims description 6
- 206010022000 influenza Diseases 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 6
- 231100000719 pollutant Toxicity 0.000 abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 238000003723 Smelting Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 239000000779 smoke Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004200 deflagration Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- F27D17/10—Arrangements for using 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
- F27D17/20—Arrangements for treatment or cleaning of waste 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)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
本发明公开了一种机上冷却烧结机的烟气净化装置，涉及钢铁冶炼技术领域。包括至少一个烧结设备，烧结设备包括烧结机、风箱、烟道、介质添加机构和集风装置，烧结机均包括若干烧结台车，烧结机的下方设置有风箱，风箱下方设置有烟道，烟道与对应的风箱连通，烧结机的上方沿烧结机的运动方向分为烧结段和冷却段，烧结台车上方设置有介质添加机构和集风装置烟道分为烧结烟道和冷却烟道，烧结段与烧结烟道对应，冷却段与冷却烟道对应，烧结烟道通过第一管路与集风装置连通，冷却烟道均通过第二管路与冷却烟囱连通。本发明将烧结烟道内的烟气循环至烧结机上方，利用烧结烟道中烟气对烧结矿进行冷却的同时对烧结烟气的污染物进行治理。
The invention discloses a flue gas purification device of an on-machine cooling sintering machine, which relates to the technical field of iron and steel smelting. Including at least one sintering equipment, the sintering equipment includes a sintering machine, a bellows, a flue, a medium adding mechanism and an air collecting device. The sintering machine includes several sintering trolleys, and a bellows is arranged below the sintering machine. The upper part of the sintering machine is divided into a sintering section and a cooling section along the movement direction of the sintering machine. A medium adding mechanism and an air collecting device are arranged above the sintering trolley. The flue is divided into a sintering flue and a cooling flue. The sintering section corresponds to the sintering flue, the cooling section corresponds to the cooling flue, the sintering flue is communicated with the air collecting device through the first pipeline, and the cooling flue is connected to the cooling chimney through the second pipeline. The invention circulates the flue gas in the sintering flue to the top of the sintering machine, and uses the flue gas in the sintering flue to cool the sintered ore and at the same time treat the pollutants in the sintering flue gas.
Description
Technical Field
The invention relates to the technical field of steel smelting, in particular to a flue gas purification device of an onboard cooling sintering machine.
Background
Sintering is an important link in iron and steel smelting, a large amount of flue gas is generated in the sintering process, and according to statistics, about 4000-6000 m is generated in each 1t of produced sinter3The smoke has large dust carrying capacity, and the dust content is generally 0.5-15 g/m3And containing a partially corrosive gas, e.g. SOx，NOxGaseous pollutants such as CO, which cause atmospheric pollution and continued corrosion of metal parts.
The existing upper cooling sintering machine is divided into two technological processes, the first half section is sintering, the sintering process is that an igniter ignites raw materials arranged on a sintering trolley, the sintering trolley travels on a platform, the sintering reaction is carried out from top to bottom, a wind box is provided with a smoke collecting device, the temperature change of sintering smoke is that the temperatures of a plurality of wind boxes in the front are basically unchanged along with the progress of the sintering reaction, and the temperature of the smoke in the wind box is gradually increased after the raw materials of the sintering trolley are combusted to be close to the bottom. The position of the bellows with the highest flue gas temperature is usually judged as the sintering end point position; after sintering, the sintering process is a cooling process, the sintered ore after being combusted is cooled to a certain temperature, and the temperature of the flue gas in the air box of the cooling section is gradually reduced.
The sintering machine adopting the process usually has unfinished sintering process in the sintering section and reaches the sintering end point in the cooling section, the emission of sulfur dioxide in the sintering flue gas is concentrated in the process that the sintering flue gas is heated to the sintering end point, and nitrogen oxide and carbon monoxide are also greatly emitted in the section. And the national environmental protection department does not set pollutant on-line monitoring equipment on the chimney of the cooling section of the sintering machine, so that the smoke of the cooling section of the sintering machine is directly discharged, and the pollution is extremely serious.
Disclosure of Invention
The invention aims to provide a flue gas purification device of an onboard cooling sintering machine, which is used for solving the problems in the prior art and purifying sintering flue gas through flue gas circulation.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a flue gas purification device of an onboard cooling sintering machine, which comprises at least one sintering device, wherein each sintering device comprises a sintering machine, an air box, a flue, a medium adding mechanism and an air collecting device, each sintering machine comprises a plurality of sintering trolleys, the sintering machine is used for conveying sintering mixture, the air box is arranged below each sintering machine, the flue is arranged below each air box and communicated with the corresponding air box, the upper part of each sintering machine is divided into a sintering section and a cooling section along the movement direction of the sintering machine, the medium adding mechanism and the air collecting device are arranged above each sintering trolley, each flue is divided into a sintering flue and a cooling flue, each sintering section corresponds to each sintering flue, each cooling section corresponds to each cooling flue, each sintering flue is communicated with each air collecting device through a first pipeline, and each cooling flue is communicated with the cooling chimney through a second pipeline.
Preferably, the bellows include a plurality of first bellows and a plurality of second bellows, and is a plurality of first bellows sets up sintering platform truck with between the sintering flue, it is a plurality of the second bellows sets up sintering platform truck with between the cooling flue, it is a plurality of first bellows all with sintering flue intercommunication, it is a plurality of the second bellows all with cooling flue intercommunication.
Preferably, the flue gas purification device for the on-board cooled sintering machine further comprises a fifth pipeline, one end of the fifth pipeline is communicated with the first pipeline, and the other end of the fifth pipeline is communicated with the medium adding mechanism.
Preferably, the sintering flue comprises a first flue and a second flue.
Preferably, the first flue is communicated with the second pipeline, and the second flue is communicated with the wind collecting device through the first pipeline.
Preferably, the first flue is communicated with the wind collecting device through a third pipeline, and the second flue is communicated with the wind collecting device through the first pipeline.
Preferably, the first flue is communicated with the medium adding mechanism through a fourth pipeline, and the second flue is communicated with the wind collecting device through the first pipeline.
Preferably, the first pipeline is provided with a first dust removal mechanism, a sintering fan, a desulfurization mechanism and a denitration mechanism; and the second pipeline is provided with a second dust removal mechanism, a waste heat recovery mechanism and a cooling fan.
Preferably, the sintering device comprises at least two sintering devices, the first pipeline of each sintering device is communicated, and the second pipeline of each sintering device is communicated.
Preferably, each first pipeline comprises a sixth pipeline, a seventh pipeline and an eighth pipeline according to the movement direction of the flue gas, each sixth pipeline is communicated with the sintering flue, each seventh pipeline is communicated with each other, each eighth pipeline is communicated with the air collecting device, each sixth pipeline is provided with a first dust removing mechanism and a sintering fan, and each seventh pipeline which is communicated with each other is provided with a desulfurization mechanism and a denitrification mechanism.
Preferably, each second pipeline is provided with a second dust removal mechanism, a waste heat recovery mechanism and a cooling fan, one end of each second pipeline is communicated with the corresponding cooling flue, and the other end of each second pipeline is communicated with the same cooling chimney.
Compared with the prior art, the invention has the following technical effects:
the flue gas in the sintering flue is circulated to the upper part of the sintering machine through the first pipeline, the flue gas in the sintering flue is used for cooling the sintering ore and treating pollutants of the sintering flue gas, the flue gas in the sintering section passes through the sintering ore through the air collecting device, and NO is generated in the sintering sectionX、SO2CO and dioxin are purified, so that the pollutant reduction and emission are realized, the heat energy recycling is improved, and the yield and the quality of the sinter are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a first schematic view (embodiment one) of a flue gas purification device of an on-board cooled sintering machine according to the present invention;
FIG. 2 is a second schematic view (embodiment II) of the flue gas purification apparatus for an on-board cooled sintering machine of the present invention;
FIG. 3 is a third schematic view (third embodiment) of the flue gas purification apparatus of the on-board cooled sintering machine of the present invention;
FIG. 4 is a fourth schematic view (example four) of the flue gas purification apparatus of the on-board cooled sintering machine of the present invention;
FIG. 5 is a schematic view of a fifth embodiment of the flue gas purification apparatus for an on-board cooled sintering machine according to the present invention;
FIG. 6 is a sixth schematic view (sixth embodiment) of the flue gas cleaning apparatus for an on-board cooled sintering machine of the present invention;
wherein: 100-flue gas purification device for cooling sintering machine on machine, 1-sintering machine, 2-igniter, 3-medium adding mechanism, 4-air collecting device, 5-sintering flue, 6-cooling flue, 7-air box, 8-first pipeline, 9-second pipeline, 10-third pipeline, 11-fourth pipeline, 12-first flue, 13-second flue, 14-sixth pipeline, 15-seventh pipeline, 16-eighth pipeline, 17-first dust removing mechanism, 18-sintering fan, 19-denitration mechanism, 20-desulphurization mechanism, 21-booster fan, 22-first fan, 23-second fan, 24-cooling chimney, 25-second dust removing mechanism, 26-waste heat recovery mechanism, 27-cooling fan, 28-fifth pipeline, 29-first wind box and 30-second wind box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a flue gas purification device for an onboard cooling sintering machine, which aims to solve the problems in the prior art.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
As shown in fig. 1: the embodiment provides a flue gas purification device 100 for an on-board cooling sintering machine, at least one sintering device, which is a sintering device, the sintering devices all comprise a sintering machine 1, an air box 7, a flue, a medium adding mechanism 3 and an air collecting device 4, the sintering machine 1 is used for conveying sintering mixture, the sintering machine 1 is a plurality of connected sintering trolleys, the sintering mixture is arranged in the sintering trolleys, an igniter 2, a medium adding mechanism 3 and an air collecting device 4 are arranged above the sintering machine 1, a certain distance is reserved between the igniter 2 and the medium adding mechanism 3, the igniter 2 is arranged at the upstream of the medium adding mechanism 3, the upper part of the sintering machine 1 is divided into a sintering section and a cooling section along the movement direction of the sintering machine 1, the medium adding mechanism 3 is arranged at the sintering section or extends from the sintering section to the tail end of the cooling section, the air box 7 is, the sintering flue 5 and the cooling flue 6 are sequentially arranged below the air box 7 along the movement direction of the sintering machine 1, the sintering flue 5 and the cooling flue 6 are communicated with the air box 7, the sintering section corresponds to the sintering flue 5, the cooling section corresponds to the cooling flue 6, the sintering flue 5 is communicated with the air collecting device 4 through a first pipeline 8, and the cooling flue 6 is communicated with a cooling chimney 24 through a second pipeline 9.
Specifically, in the present embodiment, the wind box 7 includes a plurality of first wind boxes 29 and a plurality of second wind boxes 30, the plurality of first wind boxes 29 are disposed between the sintering pallet and the sintering flue 5, the plurality of second wind boxes 30 are disposed between the sintering pallet and the cooling flue 6, the plurality of first wind boxes 29 are all communicated with the sintering flue 5, and the plurality of second wind boxes 30 are all communicated with the cooling flue 6.
In this embodiment, the first pipeline 8 is provided with a first dust removal mechanism 17, a sintering fan 18, a denitration mechanism 19 and a desulfurization mechanism 20, the first pipeline 8 may also be provided with a booster fan 21, and the booster fan 21 is disposed at the downstream of the desulfurization mechanism 20. The first dust removal mechanism 17 is used for protecting the sintering fan 18 and removing solid particles (dust), and the denitration mechanism 19 and the desulfurization mechanism 20 are used for denitration and desulfurization respectively.
In this embodiment, the second pipeline 9 is provided with a second dust removing mechanism 25, a residual heat recovering mechanism 26 and a cooling fan 27.
The embodiment also comprises a cooling device which is communicated with the air collecting device 4 and assists the water vapor (or water) to cool the sinter. The structure and the working process of the cooling device refer to the structure and the working process of the high-temperature substance cooling device disclosed in chinese patent No. CN207730033U, when in use, the cooling pipeline is communicated with the wind collecting device 4, and the bearing platform in CN207730033U is the sintering trolley in this embodiment.
In the present embodiment, the structure of the sealing device between the sintering machine 1 and the sintering pallet is described in chinese patent No. CN 206860871U; the structure and operation of the igniter 2 and the medium adding mechanism 3 are shown in chinese patent with publication number CN208059572U, and the sintering machine 1 of the present embodiment is equivalent to the conveying mechanism in the patent.
The sintering trolley ignites the transported sintering mixture when passing through the igniter 2, the sintering trolley keeps moving at the moment, the sintering mixture is combusted in the moving process of the sintering trolley to form a combusted layer, a combustion layer and an unsintered mixture layer which are distributed from top to bottom, when the sintering mixture is transported to the position below the medium adding mechanism 3, the medium output by the medium adding mechanism 3 and the combusted layer of the sintering mixture ignited by the igniter 2 are subjected to contact deflagration, the cloud detonation reaction generated by the medium adding mechanism 3 can increase the yield and quality of sintering ore, reduce NO, and ensure that the quality of the sintering ore is improvedXEmission (reduction of NO)XSee the chinese patent with publication number CN110118491A, the medium adding mechanism 3 of the present embodiment is equivalent to the reaction control device 30 in the patent), the medium in the medium adding mechanism 3 is sucked into the sintering mixture by the first air draft mechanism and contacts with the combustion layer and the unsintered mixture layer for deflagration, after the first half section of flue gas passes through the medium adding mechanism 3, NO is generatedXReduced emission is obtained; the flue gas in the first half section (sintering flue 5) is circulated into a cooling flue 6 through a first pipeline 8, the steam generated by the flue gas in the sintering flue 5 is used as a cooling medium to cool the cooling flue 6, and the steam passes through sintered ore through a wind collecting device 4, NO and the likeX、SO2And CO and dioxin are purified, so that the emission reduction is realized, the cooling speed of the sinter can be increased, and the energy consumption of the cooling fan 27 is saved. The embodiment is easy to implement, has low cost, and can remove SO in the sintering flue gas2、NOXCO and dioxin improve the yield of the sinter and the quality.
Example two
As shown in fig. 2: the difference between this embodiment and the first embodiment is: the present embodiment further includes a fifth pipe 28, one end of the fifth pipe 28 communicates with the first pipe 8, and the other end of the fifth pipe 28 communicates with the medium addition mechanism 3. One part of the flue gas in the sintering flue 5 is introduced into the medium adding mechanism 3, and the other part of the flue gas is introduced into the air collecting device 4.
EXAMPLE III
As shown in fig. 3: the difference between this embodiment and the first embodiment is: the sintering flues 5 comprise a first flue 12 and a second flue 13. The first flue 12 communicates with the second duct 9, and the second flue 13 communicates with the wind collecting device 4 through the first duct 8. In the embodiment, the lower part (the first flue 12) of the pollutants in the front part of the sintering section is introduced into the cooling flue 6, the partition plates of the air boxes 7 of the sintering flue 5 and the cooling flue 6 are newly planned, the flue gas with higher sulfur dioxide in the second flue 13 is collected in a centralized manner, and the flue gas is introduced into the air collecting device 4 after dust removal, desulfurization and denitration, so that the emission of sulfur dioxide in the tail is lower.
Example four
As shown in fig. 4: the difference between this embodiment and the third embodiment is that: the first flue 12 is communicated with the wind collecting device 4 through a third pipeline 10, and a first fan 22 is arranged on the third pipeline 10.
EXAMPLE five
As shown in fig. 5: the difference between this embodiment and the third embodiment is that: the first flue 12 is communicated with the medium adding mechanism 3 through a fourth pipeline 11, and a second fan 23 is arranged on the third pipeline 10.
EXAMPLE six
As shown in fig. 6: the difference between this embodiment and the first embodiment is: the embodiment comprises at least two sintering devices connected in parallel, wherein the first pipelines 8 of the sintering devices are communicated, and the second pipelines 9 of the sintering devices are communicated. Each first pipeline 8 comprises a sixth pipeline 14, a seventh pipeline 15 and an eighth pipeline 16 according to the movement direction of the flue gas, each sixth pipeline 14 is communicated with the sintering flue 5, each seventh pipeline 15 is communicated with each other, each eighth pipeline 16 is communicated with the air collecting device 4, each sixth pipeline 14 is provided with a first dust removing mechanism 17 and a sintering fan 18, each seventh pipeline 15 which is communicated with each other is provided with a desulfurization mechanism 19 and a denitration mechanism 20, each seventh pipeline 15 which is communicated with each other can be further provided with a booster fan 21, the booster fan 21 is arranged at the downstream of the desulfurization mechanism 20, and each first pipeline 8 in the embodiment shares one desulfurization mechanism 19 and one denitration mechanism 20.
Each second pipeline 9 is provided with a second dust removing mechanism 25, a waste heat recovery mechanism 26 and a cooling fan 27, one end of each second pipeline 9 is communicated with the corresponding cooling flue 6, the other end of each second pipeline 9 is communicated with the same cooling chimney 24, and each second pipeline 9 in the embodiment shares one cooling chimney 24. ,
the principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (11)
1. The utility model provides a flue gas purification device of on-board cooling sintering machine which characterized in that: comprises at least one sintering device, each sintering device comprises a sintering machine, an air box, a flue, a medium adding mechanism and an air collecting device, each sintering machine comprises a plurality of sintering trolleys, the sintering machines are used for conveying sintering mixture, the air boxes are arranged below each sintering machine, the flues are arranged below each air box, the flue is communicated with the corresponding air box, the upper part of each sintering machine is divided into a sintering section and a cooling section along the movement direction of the sintering machine, the medium adding mechanism and the air collecting device are arranged above the sintering trolley, each flue is divided into a sintering flue and a cooling flue, each sintering section corresponds to each sintering flue, each cooling section corresponds to each cooling flue, each sintering flue is communicated with each air collecting device through a first pipeline, and each cooling flue is communicated with a cooling chimney through a second pipeline.
2. The flue gas purification apparatus for an on-board cooled sintering machine according to claim 1, characterized in that: bellows include a plurality of first bellows and a plurality of second bellows, and is a plurality of first bellows sets up sintering platform truck with between the sintering flue, it is a plurality of the second bellows sets up sintering platform truck with between the cooling flue, it is a plurality of first bellows all with sintering flue intercommunication, it is a plurality of the second bellows all with the cooling flue intercommunication.
3. The flue gas purification apparatus for an on-board cooled sintering machine according to claim 1, characterized in that: the flue gas purification device of the on-board cooling sintering machine further comprises a fifth pipeline, one end of the fifth pipeline is communicated with the first pipeline, and the other end of the fifth pipeline is communicated with the medium adding mechanism.
4. The flue gas purification apparatus for an on-board cooled sintering machine according to claim 1, characterized in that: the sintering flue comprises a first flue and a second flue.
5. The flue gas purification apparatus for an on-board cooled sintering machine according to claim 4, wherein: the first flue is communicated with the second pipeline, and the second flue is communicated with the wind collecting device through the first pipeline.
6. The flue gas purification apparatus for an on-board cooled sintering machine according to claim 4, wherein: the first flue is communicated with the air collecting device through a third pipeline, and the second flue is communicated with the air collecting device through the first pipeline.
7. The flue gas purification apparatus for an on-board cooled sintering machine according to claim 4, wherein: the first flue is communicated with the medium adding mechanism through a fourth pipeline, and the second flue is communicated with the air collecting device through the first pipeline.
8. The flue gas purification apparatus for an on-board cooled sintering machine according to claim 1, characterized in that: the first pipeline is provided with a first dust removal mechanism, a sintering fan, a desulfurization mechanism and a denitration mechanism; and the second pipeline is provided with a second dust removal mechanism, a waste heat recovery mechanism and a cooling fan.
9. The flue gas purification apparatus for an on-board cooled sintering machine according to claim 1, characterized in that: the sintering device comprises at least two sintering devices, the first pipelines of the sintering devices are communicated, and the second pipelines of the sintering devices are communicated.
10. The flue gas purification apparatus for an on-board cooled sintering machine according to claim 9, characterized in that: each first pipeline comprises a sixth pipeline, a seventh pipeline and an eighth pipeline according to the movement direction of flue gas, each sixth pipeline is communicated with the sintering flue, each seventh pipeline is communicated with each other, each eighth pipeline is communicated with the air collecting device, each sixth pipeline is provided with a first dust removal mechanism and a sintering fan, and each seventh pipeline which is communicated with each other is provided with a desulfurization mechanism and a denitrification mechanism.
11. The flue gas purification apparatus for an on-board cooled sintering machine according to claim 9, characterized in that: and each second pipeline is provided with a second dust removal mechanism, a waste heat recovery mechanism and a cooling fan, one end of each second pipeline is communicated with the corresponding cooling flue, and the other end of each second pipeline is communicated with the same cooling chimney.
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