CN205156632U - Flue gas recirculation sintering mixes wind system all - Google Patents

Flue gas recirculation sintering mixes wind system all Download PDF

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Publication number
CN205156632U
CN205156632U CN201520999037.XU CN201520999037U CN205156632U CN 205156632 U CN205156632 U CN 205156632U CN 201520999037 U CN201520999037 U CN 201520999037U CN 205156632 U CN205156632 U CN 205156632U
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CN
China
Prior art keywords
flue gas
guide plate
shell
pipeline
wind
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201520999037.XU
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Chinese (zh)
Inventor
叶学农
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huatian Engineering and Technology Corp MCC
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Huatian Engineering and Technology Corp MCC
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Priority to CN201520999037.XU priority Critical patent/CN205156632U/en
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Publication of CN205156632U publication Critical patent/CN205156632U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a flue gas recirculation sintering mixes wind system all, be in including circulation flue gas pipeline, the cold quick -witted waste heat flue of ring and setting circular flue and the muddy wind ware of cold quick -witted waste heat flue handing -over department of ring, wherein it is in with the setting including circle cylindrical case to mix the wind ware spiral guide plate in the shell, flue gas in the circular flue produces the whirl under spiral guide plate's effect, form strong turbulent flow with the used heat air after joiing.

Description

The mixed wind system of flue gas recirculation sintering
Technical field
The utility model belongs to metallurgical equipment and process regime, is the important step of Ferrous Metallurgy flue gas recirculation sintering process.On its flue gas recirculation airduct between sintering machine flue to pallet upper smoke gas hood.
Background technology
SINTERING PRODUCTION is when adopting flue gas recirculation sintering technology, usually by temperature in the sinter fume of originally all outer row and the relatively high partial fume of oxygen content, turn back to flue gas cover on sintering pallet through circulating fan to recycle, its objective is and reduce outer waste air total amount, the dual purpose recycled sensible heat and the latent heat of sinter fume simultaneously, reach energy-conservation, reduce discharging.According to the research report of domestic authoritative unit, when adopting flue gas recirculation sintering technology, ensure that the quality index of sintering deposit is unaffected, oxygen content in circulating flue gas must not lower than 18%, for reaching this guarantee value, usually require the part used heat air being mixed into central cooler discharge in the flue gas of low oxygen content.
Therefore, when adopting flue gas recirculation sintering technology, the Blending Efficiency of Blending of circulating flue gas and used heat air is directly connected to the quality index of sintering deposit.
The current domestic existing flue gas recirculation sintering air mixing device used as shown in Figure 1, from the circulating flue gas of circulating flue gas pipe 1 after entering mixed flue gas pipe 3, converge with the hot-air from used heat air hose 2, be then sent to the flue gas cover being positioned at sintering pallet top and use.The principle of this kind of flue gas air mixing device utilizes two kinds of flue gas flowings in the duct to carry out nature generation to interpenetrate, mix, its disadvantage is that mixing is uneven, especially within the scope of limited duct length, effective mixing is difficult to, thus cause mixed flue gas oxygen content on flue gas cover length direction uneven, and then affect the quality uniformity of sintering deposit.
Utility model content
For the problems referred to above, the utility model provides a kind of mixing degree improving mixed flue gas, ensures the mixed wind system of flue gas recirculation sintering of the sinter quality of flue gas recirculation sintering process.
For achieving the above object, the utility model comprises circulating flue gas pipeline, central cooler used heat pipeline and be arranged on the wind-mixer of described circulating flue gas pipeline and central cooler used heat pipeline junction, wherein said wind-mixer comprises cylinder-like shell and is arranged on the spiral guide plate in described shell, described central cooler used heat pipeline is set in described shell, described central cooler used heat pipeline and described shell are coaxially arranged, described circulating flue gas pipeline and the tangent setting of described shell, described circulating flue gas pipeline is communicated with described enclosure, described circulation guide plate is looped around described central cooler used heat pipeline, the outside of described circulation guide plate is connected with the inwall of described shell, the inner side of described circulation guide plate is connected with the outer wall of described central cooler used heat pipeline, flue gas in described cycle flue produces eddy flow under the effect of spiral guide plate, the rear turbulent flow that formed is converged by being connected with the mixed flue gas passage that described shell is connected with used heat air.
Further, the outer centrosymmetric structure of structure of described spiral guide plate, the helical angle of described spiral guide plate is 45 °.
The mixed wind system of the utility model flue gas recirculation sintering, a whirlwind guide way is established in the junction of circulating flue gas and used heat air, first circulating flue gas is formed eddy flow, and then converge the strong turbulent flow of rear formation with used heat air, thus obtain the mixed flue gas of highly mixing.Compared with sintering air mixing device with existing flue gas recirculation, adopt the advantage of novel air mixing device of the present utility model to be the mixing degree greatly improving mixed flue gas, thus ensure that sintering process equilibrium is carried out, and then improve the quality of sintering deposit.
Accompanying drawing explanation
Fig. 1 is the mixed wind system structural representation of flue gas recirculation of the prior art sintering;
Fig. 2 is the mixed wind system structural representation of the utility model flue gas recirculation sintering.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
Embodiment
As shown in Figure 2, the mixed wind system of the present embodiment flue gas recirculation sintering, comprise circulating flue gas pipeline 1, central cooler used heat pipeline 2 and be arranged on the wind-mixer 4 of described circulating flue gas pipeline and central cooler used heat pipeline junction, wherein said wind-mixer comprises cylinder-like shell and is arranged on the spiral guide plate 3 in described shell, described central cooler used heat pipeline is set in described shell, described central cooler used heat pipeline and described shell are coaxially arranged, described circulating flue gas pipeline and the tangent setting of described shell, described circulating flue gas pipeline is communicated with described enclosure, described circulation guide plate is looped around described central cooler used heat pipeline, the outside of described circulation guide plate is connected with the inwall of described shell, the inner side of described circulation guide plate is connected with the outer wall of described central cooler used heat pipeline, flue gas in described cycle flue produces eddy flow under the effect of spiral guide plate, the strong turbulent flow of rear formation is converged with used heat air, enter mixed flue gas pipeline 5.
The course of work of the present embodiment is: the circulating flue gas from sintering flue tangentially blasts circular wind-mixer by circulating fan via circulating flue gas pipe, eddy flow is produced under the effect of spiral guide plate, then converge with the used heat air axially entering wind-mixer and enter mixed flue gas pipe, there is strong immixture in the process, thus the mixed flue gas of height of formation mixing.
Further, the outer centrosymmetric structure of structure of described spiral guide plate, the helical angle of described spiral guide plate is 45 °.
Above; be only preferred embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, the protection domain that protection domain of the present utility model should define with claim is as the criterion.

Claims (2)

1. the mixed wind system of flue gas recirculation sintering, it is characterized in that: comprise circulating flue gas pipeline, central cooler used heat pipeline and be arranged on the wind-mixer of described circulating flue gas pipeline and central cooler used heat pipeline junction, wherein said wind-mixer comprises cylinder-like shell and is arranged on the spiral guide plate in described shell, described central cooler used heat pipeline is set in described shell, described central cooler used heat pipeline and described shell are coaxially arranged, described circulating flue gas pipeline and the tangent setting of described shell, described circulating flue gas pipeline is communicated with described enclosure, described circulation guide plate is looped around described central cooler used heat pipeline, the outside of described circulation guide plate is connected with the inwall of described shell, the inner side of described circulation guide plate is connected with the outer wall of described central cooler used heat pipeline, flue gas in described cycle flue produces eddy flow under the effect of spiral guide plate, the rear turbulent flow that formed is converged by being connected with the mixed flue gas passage that described shell is connected with used heat air.
2. the mixed wind system of flue gas recirculation sintering according to claim 1, is characterized in that: the outer centrosymmetric structure of structure of described spiral guide plate, the helical angle of described spiral guide plate is 45 °.
CN201520999037.XU 2015-11-30 2015-11-30 Flue gas recirculation sintering mixes wind system all Withdrawn - After Issue CN205156632U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520999037.XU CN205156632U (en) 2015-11-30 2015-11-30 Flue gas recirculation sintering mixes wind system all

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520999037.XU CN205156632U (en) 2015-11-30 2015-11-30 Flue gas recirculation sintering mixes wind system all

Publications (1)

Publication Number Publication Date
CN205156632U true CN205156632U (en) 2016-04-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520999037.XU Withdrawn - After Issue CN205156632U (en) 2015-11-30 2015-11-30 Flue gas recirculation sintering mixes wind system all

Country Status (1)

Country Link
CN (1) CN205156632U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105276996A (en) * 2015-11-30 2016-01-27 中冶华天工程技术有限公司 Flue gas circulation sintering air mixing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105276996A (en) * 2015-11-30 2016-01-27 中冶华天工程技术有限公司 Flue gas circulation sintering air mixing system

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20160413

Effective date of abandoning: 20170901