CN206881539U - A kind of porous flue gas recirculation sintered compound device of cross-current type - Google Patents
A kind of porous flue gas recirculation sintered compound device of cross-current type Download PDFInfo
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- CN206881539U CN206881539U CN201720449622.1U CN201720449622U CN206881539U CN 206881539 U CN206881539 U CN 206881539U CN 201720449622 U CN201720449622 U CN 201720449622U CN 206881539 U CN206881539 U CN 206881539U
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Abstract
It the utility model is related to flue gas mixing equipment and technology, more particularly to a kind of porous flue gas recirculation sintered compound device of cross-current type.In the porous flue gas recirculation sintered compound device of cross-current type, the both sides of mixing casing are respectively provided with the air inlet for importing gas to be mixed, cross-flow mechanism is provided between two air inlets, the two kinds of gases imported in blending bin body are split into multiply air-flow by cross-flow mechanism respectively, and make staggeredly to mix between two groups of multiply air-flows, form the cross-flow collision of two kinds of gas, to strengthen turbulent flow effect, and two kinds of flue gas are split into multiply little airflow using cross-flow mechanism, then using two kinds of little airflows face-to-face interlock mixed flow, so as to improve the mixture homogeneity of flue gas, and the sinter quality of flue gas recirculation sintering process is effectively ensured.
Description
Technical field
It the utility model is related to flue gas mixing equipment and technology, more particularly to a kind of porous flue gas recirculation sintering of cross-current type
Blender.
Background technology
In industrial circles such as steel, electric power, nonferrous metallurgy, petrochemical industry, chemical industry, two-way Gas Parameters of different nature are commonly encountered
Mixed process.Because the source of Gas Parameters is different, therefore its temperature, pressure, dustiness, flow, flow velocity, smoke components etc.
Index is often widely different, to ensure being smoothed out for the subsequent techniques such as purified treatment, enriching and recovering or cycling and reutilization, defeated
Usually needed gas mixing homogeneous during sending.
Particularly when being sintered technique using flue gas recirculation sintering technology, it usually needs by the burning of originally whole outer rows
Tie in flue gas, temperature and the of a relatively high partial fume of oxygen content, returned to through circulating fan on sintering pallet in flue gas cover
Recycle, and the part used heat air of central cooler discharge is mixed into the flue gas of low oxygen content, to ensure the quality of sintering deposit
Index is unaffected, the oxygen content in circulating flue gas most preferably 18%.Therefore, when using flue gas recirculation sintering technology, circulation
The Blending Efficiency of Blending of flue gas and waste hot gas is directly connected to the quality index of sintering deposit.
Existing flue gas recirculation sintering air mixing device domestic at present is as shown in figure 1, the circulation cigarette from circulating flue gas pipe 1 '
Gas converges with the hot-air from used heat air hose 2 ' after mixed flue gas pipe 3 ' is entered, is sent to be located at sintering pallet
The flue gas cover on top uses.The principle of this kind of flue gas air mixing device is come naturally mutual using the flowing in the duct of two kinds of flue gases
Infiltration, mixing, its disadvantage are that mixing is uneven, are especially difficult to effectively mix in the range of limited duct length, so as to
Cause mixed flue gas oxygen content on flue gas cover length direction uneven, and then influence the quality uniformity of sintering deposit.
Utility model content
(1) technical problems to be solved
The technical problems to be solved in the utility model there is provided a kind of porous flue gas recirculation sintered compound device of cross-current type, carry
The mixing degree of high mixed flue gas, ensure the sinter quality of flue gas recirculation sintering process.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of porous flue gas recirculation sintered compound of cross-current type
Device, including mixing casing, the both sides of the mixing casing are respectively provided with the air inlet for importing gas to be mixed, two institutes
State and be provided with cross-flow mechanism between air inlet, the cross-flow mechanism splits into the two kinds of gases imported in the blending bin body respectively
Multiply air-flow, and make staggeredly to mix between multiply air-flow described in two groups.
Preferably, the chamber for gas mixing, the chamber and any air inlet are provided with the blending bin body
Between be equipped with least one set of cross-flow mechanism, setting relatively straggly between cross-flow mechanism described in each group.
Preferably, cross-flow mechanism described in every group is equipped with multiple cross-flow plates, between each cross-flow plate in same group
It is equipped with gap, the same gas distribution that multiple gaps in same group are used to import in the blending bin body is more
Stock air-flow；Setting relatively straggly between gap described in two groups.
Preferably, the both ends in the gap respectively with air inlet and chamber.
Preferably, the mixing casing is provided with gas outlet, the gas outlet and cross-flow mechanism connection, for that will pass through institute
State the gas export of cross-flow mechanism mixing.
Preferably, sieve plate is provided between the gas outlet and cross-flow mechanism.
Preferably, the sieve plate is provided with multiple sieve apertures.
Preferably, ash collecting box is provided with the blending bin body, the ash collecting box is arranged at the bottom of gas outlet.
Preferably, the gas outlet is connected with wind pipe.
Preferably, the air inlet is connected with intake stack.
(3) beneficial effect
Above-mentioned technical proposal of the present utility model has the advantages that：The porous flue gas of cross-current type of the present utility model follows
In ring sintered compound device, the both sides for mixing casing are respectively provided with the air inlet for importing gas to be mixed, two air inlets
Between be provided with cross-flow mechanism, the two kinds of gases imported in blending bin body are split into multiply air-flow by cross-flow mechanism respectively, and make two
Staggeredly mixed between group multiply air-flow, form the cross-flow collision of two kinds of gas, to strengthen turbulent flow effect, and will using cross-flow mechanism
Two kinds of flue gas are split into multiply little airflow, then using two kinds of little airflows face-to-face interlock mixed flow, so as to improve flue gas gas
The mixture homogeneity of body, and the sinter quality of flue gas recirculation sintering process is effectively ensured；The setting of sieve plate causes mixed
The turbulent flow effect of gas is further enhanced, so as to increase mixed effect；Ash collecting box is provided with beneficial to mixed gas
Dust collect and processing, effectively prevent from, because dust accretions cause gas outlet to block, improving the operating efficiency of blender.
Brief description of the drawings
Fig. 1 is that the flue gas recirculation of this prior art sinters the structural representation of air mixing device；
Fig. 2 is the front view of the porous flue gas recirculation sintered compound device of cross-current type of the utility model embodiment；
Fig. 3 is Fig. 2 A-A to top view；
Wherein, 1 ', circulating flue gas pipe；2 ', used heat air hose；3 ', mixed flue gas pipe；1st, 5, intake stack；2nd, blending bin
Body；3rd, sieve plate；4th, wind pipe；6th, cross-flow plate；7th, ash collecting box.
Embodiment
Embodiment of the present utility model is described in further detail with reference to the accompanying drawings and examples.Following examples
For illustrating the utility model, but can not be used for limiting the scope of the utility model.
In description of the present utility model, unless otherwise indicated, " multiple " are meant that two or more.Term
The orientation or position of the instruction such as " on ", " under ", "left", "right", " interior ", " outer ", " front end ", " rear end ", " head ", " afterbody " are closed
It is to be described based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplifying, rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as to limitation of the present utility model.In addition, term " first ", " second " etc. be only used for describe purpose, and it is not intended that
Instruction implies relative importance.
As shown in Fig. 2 the arrow in Fig. 2 represents the flow direction of two kinds of gas.The porous flue gas of cross-current type described in the present embodiment
Cycle sintering blender includes mixing casing 2, and the both sides of mixing casing 2 are respectively provided with the air inlet for importing gas to be mixed
Mouthful, cross-flow mechanism is provided between two air inlets, cross-flow mechanism splits into the two kinds of gases imported in mixing casing 2 more respectively
Stock air-flow, and make staggeredly to mix between two groups of multiply air-flows, the cross-flow collision of two kinds of gas is formed, to strengthen turbulent flow effect, and
Two kinds of flue gas are split into multiply little airflow using cross-flow mechanism, then using two kinds of little airflows face-to-face interlock mixed flow,
So as to improve the mixture homogeneity of flue gas, and the sinter quality of flue gas recirculation sintering process is effectively ensured.
Two air inlets have preferably been respectively communicated with intake stack 1,5, to be led to the gas being passed through in mixing casing 2
To preferably intake stack 1,5 is parallel with the bottom surface for mixing casing 2, can also be relative to the certain angle of inclined bottom surface of mixing casing 2
Degree；For the ease of exporting mixed gas, preferably mix and gas outlet is additionally provided with casing 2, gas outlet and cross-flow mechanism connection,
For the gas export that will be mixed by cross-flow mechanism, gas outlet can be arranged on top or the sidepiece of mixing casing 2, as long as logical
Gas outlet and chamber are crossed, in order to which subsequent handling equipment is oriented to and connected to mixed gas, is preferably gone out
Gas port is communicated with wind pipe 4.
Preferably, the chamber being provided with casing 2 for gas mixing is mixed, preferably gas outlet is arranged at the top of chamber,
Air inlet is respectively arranged at the two bottom sides of chamber；At least one set of cross-flow mechanism is equipped between chamber and any air inlet,
Setting relatively straggly between each group cross-flow mechanism, so that two kinds of gas difference to be mixed that two air inlets each import
After shunting by cross-flow mechanism, two kinds of multiply little airflows of formation are aspectant in chamber staggeredly to be mixed.When chamber is with appointing
When multigroup cross-flow mechanism is provided between one air inlet, each group cross-flow mechanism is set up in parallel, to expand diversion area, further increase
The uniformity of flue gas mixing.
Exemplified by one group of cross-flow mechanism is set between each air inlet and chamber, as shown in figure 3, every group of cross-flow mechanism is all provided with
There are multiple cross-flow plates 6, be equipped with gap between each cross-flow plate 6 in same group, multiple gaps in same group are used to lead
It is multiply air-flow to enter to mix the same gas distribution in casing 2；Setting relatively straggly between two groups of gaps, then two kinds of gas
The aspectant staggeredly mixed flow of multiply air-flow, so that two kinds of gas is well mixed, and effectively improves mixed uniformly efficiency, wrong
The setting of flowing plate 6 accelerates air velocity, flue gas cross-flow collision is formed, so as to strengthen turbulent flow effect and mixed effect；It is preferred that two
Group cross-flow plate 6 be arranged in parallel, to ensure that airflow direction of two kinds of gases each after cross-flow plate 6 is parallel and is oppositely arranged, with
Improve cross flow effects and mixing efficiency；The both ends of preferred gap directly connect with air inlet and chamber respectively, to ensure gas profit
Quickly shunted with gap.
In order to further increase the mixture homogeneity of mixed gas, preferably it is provided between gas outlet and cross-flow mechanism
Sieve plate 3, mixed gas obtains further uniform divided flows after flowing through sieve plate 3, so that the turbulent flow of mixed gas
Effect is further enhanced, to increase mixed effect, in addition, sieve plate 3 can also carry out simple filtration to the gas of process, with
The impurity and dust in gas are filtered, prevents gas outlet from blocking because of dust accretions；Preferable sieve plate 3 is provided with multiple sieve apertures,
Further preferred multiple sieve apertures are uniformly arranged on sieve plate 3 so that mixed gas by multiple sieve apertures shunt more uniformly,
Filter effect is more preferable.
In the present embodiment, ash collecting box 7 is provided with mixing casing 2, ash collecting box 7 is arranged at the bottom of gas outlet, ash collecting box 7
The dust being provided with beneficial to mixed gas is collected and processing, effectively prevents because dust accretions cause gas outlet to block, improves
The operating efficiency of blender；In order to improve the dust collecting effect of ash collecting box 7, preferably ash collecting box 7 is arranged at the bottom of sieve plate 3, and
Positioned at the bottom of chamber, two strands of gases are after mechanism straggly shunting, and when being mixed in chamber, the dust that gas carries can be because
Deadweight is dropped in the ash collecting box 7 of cavity bottom, while when mixed gas passes through sieve plate 3, the dust in gas is filtered
Cross and freely fall in ash collecting box 7.
Specifically, in the present embodiment, it is cuboid preferably to mix casing 2, and the ratio between its height and bottom width are preferably 2 times
~7 times；Two air inlets are in the two bottom sides for being arranged in mixing casing 2 face-to-face, and are connected to intake stack 1,5, excellent
It is rectangle to select intake stack 1,5, and an intake stack 1 connects central cooler, and central cooler used heat air is come to import, another
Intake stack 5 is connected, lead into circulating flue gas, the rectangle air intakes of preferably two intake stacks 1,5 using pipe and central cooler and
Circulating flue gas connects, to improve connection reliability；The section of two intake stacks 1,5 is preferably 7m2~20m2, intake stack 1,5
Be preferably 0~30 ° with mixing the angle between casing 2, intake stack 1,5 it is highly preferred for mixing the height of casing 2 1/3 with
Under；It is preferred that the diameter of wind pipe 4 is preferably mix the height of casing 2 more than 2/3, and connected by gas outlet in the upper of chamber
Portion, sieve plate 3 is horizontal to be arranged between gas outlet and chamber top, between the porosity of sieve plate 3 is 0.3~0.7, sieve plate 3
It is highly preferred for more than the 1/2 of box height；Cross-flow plate 6 is preferably rectangle plate, and the quantity of every group of cross-flow plate 6 is preferably 3
~10 pieces, the width of cross-flow plate 6 is preferably the 1/4~1/2 of box width, in fact it is highly preferred that is slightly over the height of blast pipe；Collection
Ash box 7 is preferably provided at the bottom of chamber, and is arranged on the underface of sieve plate 3, and it is bucket-shaped that sieve plate 3 is preferably arranged into cone,
To collect dust, its side wall is preferably 40 °~70 ° with horizontal angle, its dust collected need periodically to carry out cleaning and
Outward transport.
The blender of the present embodiment at work, the used heat air from central cooler and the circulation from sintering system
Flue gas is entered in mixing casing 2 by two intake stacks 1,5 respectively, and inside the air inlet of the mixing two bottom sides of casing 2
The multiply air-flow of two groups of relative flows is first split into the presence of cross-flow mechanism, wherein, utilize multiple cross-flows of cross-flow mechanism
Two kinds of gases are split into multiply air-flow by the gap between plate 6 respectively；Staggeredly mixed flow enters two kinds of gases after shunting face-to-face
In chamber, the overall uniformly mixing in mixed flow, mixed gas, i.e. mixed flue gas are formed, mixed flue gas is mingled with mixing
Dust by cross-flow plate 6 first time shunting after, fall to automatically in the ash collecting box 7 of cavity bottom；When mixed flue gas rises
After second of the shunting and filtration of sieve plate 3, exported by gas outlet by wind pipe 4 outside blender, and it is carried
Dust filtered by sieve plate 3 after, fall to automatically in the ash collecting box 7 immediately below sieve plate 3, to avoid the blocking of gas outlet.
In summary, in the porous flue gas recirculation sintered compound device of the cross-current type of the present embodiment, the both sides difference of mixing casing 2
Provided with the air inlet for importing gas to be mixed, cross-flow mechanism is provided between two air inlets, cross-flow mechanism will import mixed
Two kinds of gases in mould assembling body 2 split into multiply air-flow respectively, and make staggeredly to mix between two groups of multiply air-flows, form two kinds of gas
Two kinds of flue gas to strengthen turbulent flow effect, and are split into multiply little airflow, then by the cross-flow collision of body using cross-flow mechanism
Using two kinds of little airflows face-to-face interlock mixed flow, so as to improve the mixture homogeneity of flue gas, and flue gas recirculation is effectively ensured
The sinter quality of sintering process；The setting of sieve plate 3 causes the turbulent flow effect of mixed gas to be further enhanced, so as to
Increase mixed effect；The dust collection and processing that are provided with beneficial to mixed gas of ash collecting box 7, are effectively prevented because of dust heap
Product causes gas outlet to block, and improves the operating efficiency of blender.
Embodiment of the present utility model in order to example and description for the sake of and provide, and be not exhaustively or will
The utility model is limited to disclosed form.Many modifications and variations are aobvious and easy for the ordinary skill in the art
See.Selection and description embodiment are to more preferably illustrate principle and practical application of the present utility model, and make this area
Those of ordinary skill it will be appreciated that the utility model so as to designing the various embodiments with various modifications suitable for special-purpose.
Claims (10)
- A kind of 1. porous flue gas recirculation sintered compound device of cross-current type, it is characterised in that including mixing casing, the mixing casing Both sides are respectively provided with the air inlet for importing gas to be mixed, and cross-flow mechanism is provided between two air inlets, described The two kinds of gases imported in the blending bin body are split into multiply air-flow by cross-flow mechanism respectively, and make multiply air-flow described in two groups Between staggeredly mix.
- 2. blender according to claim 1, it is characterised in that the chamber for gas mixing is provided with the blending bin body Room, is equipped with least one set of cross-flow mechanism between the chamber and any air inlet, cross-flow mechanism described in each group it Between setting relatively straggly.
- 3. blender according to claim 2, it is characterised in that cross-flow mechanism described in every group is equipped with multiple cross-flow plates, It is equipped with gap between each cross-flow plate in same group, multiple gaps in same group are used to importing described mixed Same gas distribution in mould assembling body is multiply air-flow；Setting relatively straggly between gap described in two groups.
- 4. blender according to claim 3, it is characterised in that the both ends in the gap connect with air inlet and chamber respectively It is logical.
- 5. according to the blender described in claim any one of 1-4, it is characterised in that the mixing casing is provided with gas outlet, The gas outlet and cross-flow mechanism connection, for the gas export that will be mixed by the cross-flow mechanism.
- 6. blender according to claim 5, it is characterised in that sieve plate is provided between the gas outlet and cross-flow mechanism.
- 7. blender according to claim 6, it is characterised in that the sieve plate is provided with multiple sieve apertures.
- 8. blender according to claim 5, it is characterised in that ash collecting box, the collection ash are provided with the blending bin body Box is arranged at the bottom of gas outlet.
- 9. blender according to claim 5, it is characterised in that the gas outlet is connected with wind pipe.
- 10. according to the blender described in claim any one of 1-4, it is characterised in that the air inlet is connected with intake stack.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720449622.1U CN206881539U (en) | 2017-04-26 | 2017-04-26 | A kind of porous flue gas recirculation sintered compound device of cross-current type |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720449622.1U CN206881539U (en) | 2017-04-26 | 2017-04-26 | A kind of porous flue gas recirculation sintered compound device of cross-current type |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110917914A (en) * | 2019-12-19 | 2020-03-27 | 北京北方华创微电子装备有限公司 | Gas mixing device and semiconductor processing equipment |
| CN114082280A (en) * | 2020-08-07 | 2022-02-25 | 中国石油化工股份有限公司 | Mixing cover |
| CN115507662A (en) * | 2021-06-23 | 2022-12-23 | 上海梅山钢铁股份有限公司 | Method for reasonably distributing circulating flue gas in flue gas hood |
-
2017
- 2017-04-26 CN CN201720449622.1U patent/CN206881539U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110917914A (en) * | 2019-12-19 | 2020-03-27 | 北京北方华创微电子装备有限公司 | Gas mixing device and semiconductor processing equipment |
| CN110917914B (en) * | 2019-12-19 | 2022-09-16 | 北京北方华创微电子装备有限公司 | Gas mixing device and semiconductor processing equipment |
| CN114082280A (en) * | 2020-08-07 | 2022-02-25 | 中国石油化工股份有限公司 | Mixing cover |
| CN115507662A (en) * | 2021-06-23 | 2022-12-23 | 上海梅山钢铁股份有限公司 | Method for reasonably distributing circulating flue gas in flue gas hood |
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