CN207452207U - A kind of separate system for being sintered flue gas recirculation circuit - Google Patents
A kind of separate system for being sintered flue gas recirculation circuit Download PDFInfo
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- CN207452207U CN207452207U CN201721113244.6U CN201721113244U CN207452207U CN 207452207 U CN207452207 U CN 207452207U CN 201721113244 U CN201721113244 U CN 201721113244U CN 207452207 U CN207452207 U CN 207452207U
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- flue gas
- sintering
- separate system
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- isocon
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Abstract
The utility model discloses a kind of separate system for being sintered flue gas recirculation circuit.Including the flue gas cover being mounted on sintering pallet, the flue gas cover width both sides are respectively arranged with more than two isocons；Baffle is provided in the sintering device flue gas cover in both sides shunting nozzle centre position；The height of baffle plate is less than the distance with sintering charge level at the top of sintering device flue gas cover.The use of more than many kinds of measures makes sintering flue gas recirculation technique reach the liquidating of effective reducing smoke cover width both sides circulating flue gas, effectively inhibit bias current of the circulating flue gas on sintering machine width, effectively facilitate diffusion of the circulating flue gas in flue gas cover on different directions, the technical goal of real-time monitoring skylight valve opening.
Description
Technical field
The utility model is related to technical field of ferrous metallurgy more particularly to a kind of shunting systems for being sintered flue gas recirculation circuit
System.
Background technology
Agglomeration for iron mine technique will play the part of vital role for a long time in steel production.In China, from 2012 10
Since the moon 1, with《Steel and iron industry pollutant emission new standard》Implementation, sintering flue gas recirculation technique be increasingly becoming industry
Interior applies hot spot.
Sintering flue gas recirculation is after a part of heat-carrying gas of sintering process discharge are returned ignitor for sintering using technology
Trolley on a kind of sintering method for recycling again, it is recyclable its essence is another form of hot air sintering technology
The waste heat of flue gas is sintered, improves the efficiency of utilization of sintering circuit, reduces solid fuel consumption.It is sintered flue gas recirculation utilization technology
It is the flue gas for collecting all or part of bellows, is recycled back to sinter bed.Harmful components in this portion will be
It is thermal decomposited or converts in sinter layer, dioxin and NOx can be partially removed, and inhibit the generation of NOx, and dust and SOx can be burnt
Layer capture is tied, reduces the discharge capacity of dust, SOx, the CO in flue gas is used as fuel, can reduce solid burnup.In addition, cigarette
Gas recycles the exhaust gas volumn for reducing and being discharged at chimney, reduces terminal processes load, can improve the de- of sintering desulfuration device
Sulphur efficiency reduces the specification of desulfurizer, reduces the investment of desulfurizer, and then energy saving and emission reduction double benefit.
But from the point of view of existing practical application, sintering flue gas recirculation technology also there are one it is loftier the problem of, i.e.,
Circulating flue gas is seriously uneven in sintering device flue gas cover flow field.The reason for causing the above problem is mainly：(1) for middle-size and small-size
Sintering machine, using unilateral circulation loop, the isocon being connected with sintering device flue gas cover and flue gas cover vertical design, in sintering machine width
Diffusion effect on degree and length direction is poor, and easily there are Biased flow phenomenons in the direction of the width；(2) for large scale sintering
Machine, using bilateral circulation loop, the isocon inclined design being connected with sintering device flue gas cover, the cycling cigarette at left and right sides of flue gas cover
The Flow Field Distribution improved on sintering machine width though gas liquidates, diffusion of the flue gas on sintering machine length direction is still not
It is good.
The non-uniform problem of sintering device flue gas cover flow field easily causes the difference of sintering machine different zones combustion adjuvant circulation
It is different, sintering pallet edge is especially closed on, and then affects the difference of different zones sinter quality and metallurgical index.
Utility model content
To solve the above problems, the purpose of this utility model is to provide one kind to slow down cigarette at left and right sides of sintering device flue gas cover
The diffusion for liquidating, promoting circulating flue gas in sintering device flue gas cover of gas inhibits circulating flue gas on sintering machine width
The separate system in the sintering flue gas recirculation circuit of bias current.
In order to achieve the above objectives, the separate system in the utility model sintering flue gas recirculation circuit, including being mounted on sintering machine
Flue gas cover on trolley, the flue gas cover width both sides are respectively arranged with more than two isocons；In the both sides
Baffle is provided in the sintering device flue gas cover in shunting nozzle centre position；The height of baffle plate be less than sintering device flue gas cover at the top of with
It is sintered the distance of charge level.
Preferably, the interlaced setting of the isocon of the both sides.
Preferably, the isocon connects position with the sintering device flue gas cover as flared type structure, and interior sets deflector.
Preferably, the height of baffle plate is H1, and the sintering device flue gas cover top and the distance of sintering charge level are H2；Wherein
H1 is not more than the 50% of H2.
Preferably, the sintering device flue gas cover is covered in above sintering pallet, 30 ° of smoke inlet and flue gas cover angle
~45 °；The smoke inlet connects the gas outlet of the isocon.
Preferably, along sintering machine length direction, the distance between isocon described in any two is L1, and the isocon is wide
It spends for L2；L1 is not less than the 50% of L2, and L1 is not more than L2.
Preferably, the inclined tube that the isocon is connected with the sintering device flue gas cover is in an angle α with horizontal direction；It is described
The number of degrees of angle α are 30 °~45 °.
Preferably, the gas outlet of the isocon is flared type structure；The number of degrees of the flaring：Along sintering machine width
For 30 °~45 °；It it is 30 °~60 ° along sintering machine length direction.
Preferably, the flared type structure division inner surface of the isocon sets deflector；Arbitrary two pieces of deflectors it
Between relative angle be 5 °~10 °.
Preferably, at least three skylight and 1 set of signal detection system are provided at the top of the sintering device flue gas cover；Signal
Detection includes at least two temperature, pressure and ingredient measuring point respectively；Also include at least three CO alarms.
The beneficial effects of the utility model are：
(1) centre position is provided with the baffle through entire flue gas cover in sintering device flue gas cover, and at left and right sides of flue gas cover
Isocon set using wrong row's formula, effectively slow down liquidating, promoting circulating flue gas for circulating flue gas at left and right sides of flue gas cover
Diffusion in sintering device flue gas cover inhibits bias current of the circulating flue gas on sintering machine width.
(2) isocon has run through entire flue gas cover, and the gas outlet of isocon is designed using wide-angle flared type, effectively promotees
Into diffusion of the circulating flue gas on sintering machine length direction；
(3) deflector is provided with inside the gas outlet of isocon, further promotes circulating flue gas sintering machine length direction
On diffusion, and effectively inhibit bias current of the circulating flue gas on sintering machine width；
(4) signal detection systems such as the skylight valve control at the top of flue gas cover and circulating flue gas temperature, pressure and oxygen content
Association, skylight valve opening realize real-time monitoring, further ensure the production stability of sintering flue gas recirculation technique.
Description of the drawings
Fig. 1 is sintering machine circulating flue gas separate system embodiment device schematic diagram (side view) described in the utility model；
Fig. 2 is sintering machine circulating flue gas separate system schematic device (top view) described in the utility model embodiment 1；
Fig. 3 is sintering machine circulating flue gas separate system schematic device (top view) described in the utility model embodiment 2.
Wherein, the concrete meaning of each reference numeral is as follows in Fig. 1,2 or 3：
101~108-isocon；201~203-temperature sensor；301st, 302-pressure sensor； 401、402—
Flue gas analyzer；501~503-skylight；6-baffle；701~704-CO alarms；8-sintering device flue gas cover；9-sintering
Machine trolley.
Specific embodiment
The utility model is further described with reference to Figure of description.
Embodiment 1：
The separate system in flue gas recirculation circuit is sintered for the utility model as depicted in figs. 1 and 2, by following from sintering machine
Ring flue gas after 101~108 uniform divided flows of isocon, introduces and cycle sintering is carried out in sintering device flue gas cover 8.
Sintering device flue gas cover 8 is covered in the top of sintering pallet 9,45 ° of width both sides place equipped with smoke inlet and with
The gas outlet connection of isocon 101~108；Centre position sets baffle 6 in sintering device flue gas cover 8, and baffle 6 is burnt through entire
The distance of knot machine flue gas cover 8, height H1,8 top of sintering device flue gas cover and sintering charge level is H2, and H1 is the 50% of H2.
The isocon 101~108 of 8 both sides of sintering device flue gas cover, quantity is equal, is 4, and the left and right sides is arranged using wrong
Formula is set；Along the distance between 9 length direction of sintering pallet, any two isocon 101/103 be L1, isocon 101~
108 width are L2, and L1 is equal to the 50% of L2；The inclined tube that isocon 101~108 is connected with sintering device flue gas cover 8, on the whole with
Horizontal direction is in an angle α, and the number of degrees are 45 °；The end for the inclined tube that isocon 101~108 is connected with sintering device flue gas cover 8,
It is designed using flared type, the number of degrees of flaring, is 45 ° along 9 length direction of sintering pallet, is along 9 width of sintering pallet
30°；Deflector is set in the end of inclined tube, deflector is set along 9 width of sintering pallet；Between arbitrary two pieces of deflectors
Relative angle is 5 °.
The top of sintering device flue gas cover 8 sets a certain number of skylights 5 and signal detection system, signal detection system difference
Include a certain number of temperature sensors 201~203, pressure sensor 301~302 and flue gas analyzer 401~402；Sintering
The both sides of machine flue gas cover 8 also set up a certain number of CO alarms 701~703.
Embodiment 2：
The present embodiment further limits on the basis of above-described embodiment 1：
As shown in figure 3, divided by lower structure have differences outer, the separate system structure arrangement and 1 phase of embodiment of the present embodiment
Together：The isocon 101~106 of 8 both sides of sintering device flue gas cover, quantity is equal, is 3, and the left and right sides is set using wrong row's formula
It puts；It is L1 along the distance between 9 length direction of sintering pallet, any two isocon 101/103, isocon 101~106 is wide
It spends for L2, L1 is equal with L2.
Embodiment 3：
The present embodiment further limits on the basis of above-described embodiment 1 or embodiment 2：
As shown in Fig. 2 or Fig. 3, the separate system structure of the present embodiment is arranged compared with embodiment 1 or embodiment 2, poor
It is different to be：
(1) the smoke inlet pipe of sintering device flue gas cover 8 and the angle of horizontal direction, the number of degrees can be in 30 °~45 ° scopes
Interior fluctuation；
(2) height of baffle 6 is H1, and the distance no more than the top of sintering device flue gas cover 8 and sintering charge level is H2, and H1 can be with
It is fluctuated in the range of the 25%~50% of H2；
(3) the distance between any two isocon 101/103 is L1, and 101~108 width of isocon is L2, and L1 can be with
It is fluctuated in the range of the 50%~100% of L2；
(4) inclined tube for the isocon 101~108 being connected with sintering device flue gas cover 8 is on the whole an angle with horizontal direction
α, the number of degrees fluctuate in the range of 30 °~45 °；
(5) number of degrees of the end flaring of the inclined tube for the isocon 101~108 being connected with sintering device flue gas cover 8, along sintering machine
9 length direction of trolley fluctuates in the range of 45 °~60 °, is fluctuated along 9 width of sintering pallet in the range of 30 °~45 °；
(6) deflector is set in the end of the inclined tube for the isocon 101~108 being connected with sintering device flue gas cover 8, deflector was both
It can set, can also be set along 9 length direction of sintering pallet along 9 width of sintering pallet；
(7) relative angle between arbitrary two pieces of deflectors, can fluctuate in the range of 5 °~10 °.
It should be appreciated that the technical characteristic in each embodiment and embodiment in the utility model is not before conflicting
Putting can in any combination, and the technical solution after combination is still within the scope of protection of the utility model.More than, it is only this practicality
New preferred embodiment, but the scope of protection of the utility model is not limited thereto, any technology for being familiar with the art
In the technical scope that personnel disclose in the utility model, the change or replacement that can readily occur in should all be covered in the utility model
Protection domain within.Therefore, the scope of protection of the utility model should be subject to the protection domain that claim is defined.
Claims (10)
1. a kind of separate system for being sintered flue gas recirculation circuit, including the flue gas cover being mounted on sintering pallet, feature exists
In：The flue gas cover width both sides are respectively arranged with more than two isocons；Among both sides shunting nozzle
Baffle is provided in the sintering device flue gas cover of position；The height of baffle plate be less than sintering device flue gas cover at the top of with sintering charge level away from
From.
2. the separate system in sintering flue gas recirculation circuit according to claim 1, it is characterised in that：The sintering device flue gas
Cover is covered in above sintering pallet, 30 °~45 ° of smoke inlet and flue gas cover angle；The smoke inlet connects the shunting
The gas outlet of pipe.
3. the separate system in sintering flue gas recirculation circuit according to claim 1, it is characterised in that：Point of the both sides
Flow tube quantity is equal, and interlaced setting.
4. the separate system in sintering flue gas recirculation circuit according to claim 3, it is characterised in that：The isocon and institute
State sintering device flue gas cover connection position, i.e., the gas outlet of described isocon is flared type structure, and interior sets deflector.
5. the separate system in sintering flue gas recirculation circuit according to claim 1, it is characterised in that：The height of baffle plate is
H1, the sintering device flue gas cover top and the distance of sintering charge level are H2；Wherein H1 is not more than the 50% of H2.
6. the separate system in sintering flue gas recirculation circuit according to claim 3, it is characterised in that：Along sintering machine length side
To the distance between isocon described in any two is L1, and the isocon width is L2；L1 is not less than the 50% of L2, and L1
No more than L2.
7. the separate system in sintering flue gas recirculation circuit according to claim 3, it is characterised in that：The isocon and institute
It is in an angle α to state the inclined tube of sintering device flue gas cover connection and horizontal direction；The number of degrees of the angle α are 30 °~45 °.
8. the separate system in sintering flue gas recirculation circuit according to claim 4, it is characterised in that：The isocon goes out
The number of degrees of the flaring of gas port：It it is 30 °~45 ° along sintering machine width；It it is 30 °~60 ° along sintering machine length direction.
9. the separate system in sintering flue gas recirculation circuit according to claim 4, it is characterised in that：The expansion of the isocon
The inside of mouth formula structure sets deflector；Relative angle between arbitrary two pieces of deflectors is 5 °~10 °.
10. the separate system in sintering flue gas recirculation circuit according to claim 1, it is characterised in that：In the sintering machine
At least three skylight and 1 set of signal detection system are provided at the top of flue gas cover, respectively comprising at least two temperature, pressure and into sorting
Survey instrument；The composition detection instrument includes at least three CO alarms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721113244.6U CN207452207U (en) | 2017-08-31 | 2017-08-31 | A kind of separate system for being sintered flue gas recirculation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721113244.6U CN207452207U (en) | 2017-08-31 | 2017-08-31 | A kind of separate system for being sintered flue gas recirculation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207452207U true CN207452207U (en) | 2018-06-05 |
Family
ID=62249363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721113244.6U Active CN207452207U (en) | 2017-08-31 | 2017-08-31 | A kind of separate system for being sintered flue gas recirculation circuit |
Country Status (1)
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| CN (1) | CN207452207U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107419094A (en) * | 2017-08-31 | 2017-12-01 | 中冶华天工程技术有限公司 | A kind of separate system for sintering flue gas recirculation loop |
| CN110608618A (en) * | 2019-10-14 | 2019-12-24 | 中国科学院过程工程研究所 | External support type sintering flue gas circulation sealing device and stacking method thereof |
| WO2022262406A1 (en) * | 2021-06-15 | 2022-12-22 | 中国科学院过程工程研究所 | Gas premixing sealing cover capable of double-side intake and circulating system for flue gas of sintering machine |
-
2017
- 2017-08-31 CN CN201721113244.6U patent/CN207452207U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107419094A (en) * | 2017-08-31 | 2017-12-01 | 中冶华天工程技术有限公司 | A kind of separate system for sintering flue gas recirculation loop |
| CN110608618A (en) * | 2019-10-14 | 2019-12-24 | 中国科学院过程工程研究所 | External support type sintering flue gas circulation sealing device and stacking method thereof |
| WO2022262406A1 (en) * | 2021-06-15 | 2022-12-22 | 中国科学院过程工程研究所 | Gas premixing sealing cover capable of double-side intake and circulating system for flue gas of sintering machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220608 Address after: 243000 Fu Chang Industrial Park, 259 HSI Nan Road, Ma'anshan economic and Technological Development Zone, Anhui Patentee after: HUATIAN ENGINEERING & TECHNOLOGY CORPORATION, MCC Patentee after: HUATIAN NANJING ENGINEERING & TECHNOLOGY CORPORATION, MCC Address before: 243000 Fu Chang Industrial Park, 259 HSI Nan Road, Ma'anshan economic and Technological Development Zone, Anhui Patentee before: HUATIAN ENGINEERING & TECHNOLOGY CORPORATION, MCC Patentee before: HUATIAN NANJING ENGINEERING & TECHNOLOGY CORPORATION, MCC Patentee before: MCC HUATIAN (ANHUI) ENERGY SAVING ENVIRONMENTAL PROTECTION RESEARCH INSTITUTE Co.,Ltd. |
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| TR01 | Transfer of patent right |