CN107448966B - Flue gas flow mixing device for fuel-firing gas-firing combustion chamber of hot-blast stove - Google Patents
Flue gas flow mixing device for fuel-firing gas-firing combustion chamber of hot-blast stove Download PDFInfo
- Publication number
- CN107448966B CN107448966B CN201710680185.9A CN201710680185A CN107448966B CN 107448966 B CN107448966 B CN 107448966B CN 201710680185 A CN201710680185 A CN 201710680185A CN 107448966 B CN107448966 B CN 107448966B
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- Prior art keywords
- guiding channel
- ring flow
- flow
- outer housing
- guiding
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The invention discloses the flue gas flow mixing devices for the fuel-firing gas-firing combustion chamber of hot-blast stove with air distribution device, comprising: flange, outer housing, middle ring flow-guiding channel, inner ring flow-guiding channel, junction steel plate, outer ring flow-guiding channel, fixed shell；Outer housing is made by steel plate in outside, and refractory fibre is arranged in outer housing inner wall, and fixed shell is arranged between heavy refractory material on the inside of refractory fibre, inner ring flow-guiding channel, middle ring flow-guiding channel, outer ring flow-guiding channel are arranged inside heavy refractory material；It is equipped with flange in outer housing two sides, by flange and burning gallery and turns smoke-box and connect；The cold air that the high-temperature flue gas and air distribution device that burner combustion generates are sent into is through burning gallery, by the inner ring flow-guiding channel of flow mixing device, middle ring flow-guiding channel and outer ring flow-guiding channel guiding make mixed flow gas intersect at an angle and meet, it is sufficiently mixed, then enter heat exchanging body through turning smoke-box.
Description
Technical field
The present invention relates to Thermal Power Engineering technical fields, and in particular to the fuel-firing gas-firing combustion chamber of hot-blast stove with air distribution device
Flue gas flow mixing device
Background technique
Fuel oil or combustion gas burn in combustion chamber of hot-blast stove generation high-temperature flue gas with by air distribution device be sent into cold air
After blending, into smoke-box is turned, since process is short, high-temperature flue gas and cold air undercompounding cause the mixing into heat exchanging body
Flue-gas temperature is uneven, causes heat exchanging body uneven heating, and thermal stress is big, and heat exchanging body is made easily to crack, and influences hot-blast stove normal operation
And service life.
Therefore, it is necessary to a kind of flue gas flow mixing device be designed, to solve the above problems.
Summary of the invention
The present invention in view of the above technical problems, proposes a kind of flue gas mixed flow that can be uniformly mixed high-temperature flue gas with cold air
Device.
To achieve the above objectives, it is achieved through the following technical solutions:
Flue gas flow mixing device for the fuel-firing gas-firing combustion chamber of hot-blast stove with air distribution device, comprising: flange, outer housing,
Junction steel plate and fixed shell；
Outer housing is the open circles band of column, and outer housing axial ends end is provided with flange, i.e., flange is as outer housing
With the coupling part of external device (ED)；
Wherein, the cavity inside of outer housing is provided with cricoid fixed shell, and fixed shell passes through junction steel plate and shell
Internal wall is connected and fixed, and then ring cavity is formed between fixed shell and outer housing, and refractory fibre is filled in this ring cavity；
Heavy refractory material is filled in the internal chamber of fixed shell；
Wherein, the pie structure setting that heavy refractory material is formed has several inner ring annularly spread outward by center
Flow-guiding channel, several middle ring flow-guiding channels and several outer ring flow-guiding channels, i.e. several inner ring flow-guiding channel concentrated settings
In the center for the pie structure that heavy refractory material is formed, several ring flow-guiding channels are annularly distributed circumferentially around in interior
Ring flow-guiding channel radial outside, several outer ring flow-guiding channels are annularly distributed circumferentially around on the outside of middle ring flow-guiding channel；
Inner ring flow-guiding channel, middle ring flow-guiding channel and outer ring flow-guiding channel be axially through channel, and between each other
Central axis it is not parallel；
Further, inclined direction of the inner ring flow-guiding channel from inlet end to outlet side is to be formed towards heavy refractory material
Pie structure centre axis inclination；
Inclined direction of the outer ring flow-guiding channel from inlet end to outlet side is opposite with the inclined direction of inner ring flow-guiding channel.
The present invention by adopting the above technical scheme by the flange of two sides and the burning gallery of hot-blast stove and turns smoke-box company
It connects, overall structure is in round pie；Outer housing is made by steel plate in outer housing, fills in outer housing and internal fixed body clearance resistance to
Fiery fiber is made as insulating layer, set casing chamber inside body by heavy refractory material casting at flame retardant coating, in heavy refractory material
The inner ring flow-guiding channel, middle ring flow-guiding channel and outer ring flow-guiding channel of differing tilt angles are set, and high-temperature flue gas and cold air are logical
Cross the inner ring flow-guiding channel of the present apparatus, the different angle of middle ring flow-guiding channel and outer ring flow-guiding channel guiding after, with certain
Angle is met, and enhances the mixed flow degree of gas, after being sufficiently mixed high-temperature flue gas and cold air, flue-gas temperature is uniform, through turning smoke-box
Into heat exchanging body, and then guarantee that heat exchanging body is heated evenly everywhere, prevents heat exchanging body uneven heating from cracking, guarantee hot-blast stove stabilization,
Efficient operation extends hot-blast stove service life.
The present invention is overall structure, scientific and reasonable, novel, it can also be used to which the high-temperature gas and cold air of other equipment blend
It uses.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
The present invention totally 3 width attached drawing, wherein:
Fig. 1 is the schematic diagram of the section structure of the invention.
Fig. 2 is the A-A diagrammatic cross-section of Fig. 1.
Fig. 3 is the schematic diagram of the section structure when the present invention is assemblied in the burning gallery of hot-blast stove and turns between smoke-box.
In figure:: 1- flange, 2- refractory fibre, 3- heavy refractory material, 4- outer housing, 5- middle ring flow-guiding channel, 6- inner ring
Flow-guiding channel, 7- junction steel plate, 8- outer ring flow-guiding channel, the fixed shell of 9-, 10- burner, 11- air distribution device, 12- burning are logical
Road, 13- turn smoke-box.
Specific embodiment
Flue gas mixed flow for the fuel-firing gas-firing combustion chamber of hot-blast stove with air distribution device as shown in Figure 1, Figure 2 and Figure 3 fills
It sets, comprising: flange 1, outer housing 4, junction steel plate 7 and fixed shell 9；
Outer housing 4 is the open circles band of column, and 4 axial ends end of outer housing is provided with flange 1, i.e., flange 1 is as outer
The coupling part of shell 4 and external device (ED)；
Wherein, the cavity inside of outer housing 4 is provided with cricoid fixed shell 9, fixed shell 9 by junction steel plate 7 with
4 inner wall of outer housing is connected and fixed, and then ring cavity is formed between fixed shell 9 and outer housing 4, and refractory fibre is filled in this ring cavity
2；
Heavy refractory material 3, the fixed preferably annular shape, and and shell of shell 9 are filled in the internal chamber of fixed shell 9
The setting of 4 central coaxial of body；
Wherein, the pie structure setting that heavy refractory material 3 is formed has in several annularly spread outward by center
Ring flow-guiding channel 6, several middle ring flow-guiding channels 5 and several outer ring flow-guiding channels 8, i.e. several inner ring flow-guiding channels 6 collection
In be set to the formation of heavy refractory material 3 pie structure center, annularly distribution is circumferential for several ring flow-guiding channels 5
It is surrounded on 6 radial outside of inner ring flow-guiding channel, several outer ring flow-guiding channels 8 annularly lead to circumferentially around in middle ring water conservancy diversion by distribution
5 outside of road；
Inner ring flow-guiding channel 6, middle ring flow-guiding channel 5 and outer ring flow-guiding channel 8 be axially through channel, and mutually it
Between central axis it is not parallel；
Further, inner ring flow-guiding channel 6 is from inlet end (high-temperature flue gas of hot-blast stove and the feeding end of cold air) to out
The inclined direction at gas end (with 13 connecting pin of smoke-box is turned) is to incline towards the pie structure centre axis that heavy refractory material 3 is formed
Tiltedly；
Inclined direction of the outer ring flow-guiding channel 8 from inlet end to outlet side is opposite with the inclined direction of inner ring flow-guiding channel 6.
Wherein, inner ring flow-guiding channel 6, middle ring flow-guiding channel 5 and 8 optimal case of outer ring flow-guiding channel are led for each adjacent two
Circulation road outlet air column can meet collision, guarantee high-temperature flue gas and cold air mixed flow to greatest extent.
The present invention by adopting the above technical scheme by the flange 1 of two sides and the burning gallery 12 of hot-blast stove and turns smoke-box
13 connections (i.e. the present invention is assemblied in burning gallery 12 and turns between smoke-box 13), overall structure are in round pie；Outer housing 4 is by steel plate
Outer housing is made, the refractory fibre filled in outer housing 4 and internal fixed 9 gap of shell is made as insulating layer, fixes in shell 9
By heavy refractory material casting, at flame retardant coating, the inner ring flow-guiding channel of differing tilt angles is arranged in chamber in heavy refractory material
6, middle ring flow-guiding channel 5 and outer ring flow-guiding channel 8, the high-temperature flue gas being sent by the burner 10 of hot-blast stove and by the air distribution of hot-blast stove
The cold air that device is sent into passes through the inner ring flow-guiding channel 6 of the present apparatus, the difference of middle ring flow-guiding channel 5 and outer ring flow-guiding channel 8
It after the guiding of angle, meets at an angle, enhances the mixed flow degree of gas, after being sufficiently mixed high-temperature flue gas and cold air,
Flue-gas temperature is uniform, is turned smoke-box 13 into heat exchanging body, and then guarantees that heat exchanging body is heated evenly everywhere, prevents heat exchanging body heated not
It cracks, guarantees hot-blast stove stabilization, efficient operation, extend the service life of hot-blast stove.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member without departing from the scope of the present invention, when the technology contents using the disclosure above are modified or are modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made for any of the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (2)
1. being used for the flue gas flow mixing device of the fuel-firing gas-firing combustion chamber of hot-blast stove with air distribution device characterized by comprising flange
(1), outer housing (4), junction steel plate (7) and fixation shell (9)；
The outer housing (4) is the open circles band of column, and outer housing (4) axial ends end is provided with flange (1), i.e. flange
(1) coupling part as outer housing (4) and external device (ED)；
Wherein, the cavity inside of outer housing (4) is provided with cricoid fixed shell (9), and fixed shell (9) pass through junction steel plate
(7) it is connected and fixed with outer housing (4) inner wall, and then forms ring cavity between fixed shell (9) and outer housing (4), and in this ring cavity
It fills refractory fibre (2)；
Heavy refractory material (3) are filled in the internal chamber of the fixed shell (9)；
Wherein, the pie structure setting that heavy refractory material (3) is formed has several inner ring annularly spread outward by center
Flow-guiding channel (6), several middle ring flow-guiding channels (5) and several outer ring flow-guiding channels (8), i.e. several inner ring flow-guiding channels
(6) center for the pie structure that concentrated setting is formed in heavy refractory material (3), several middle ring flow-guiding channels (5) are in
Annular distribution is circumferentially around in inner ring flow-guiding channel (6) radial outside, and annularly distribution is circumferential for several outer ring flow-guiding channels (8)
It is surrounded on the outside of middle ring flow-guiding channel (5)；
Inner ring flow-guiding channel (6), middle ring flow-guiding channel (5) and outer ring flow-guiding channel (8) be axially through channel, and mutually
Between central axis it is not parallel.
2. the flue gas flow mixing device according to claim 1 for the fuel-firing gas-firing combustion chamber of hot-blast stove with air distribution device,
It is characterized by:
Inclined direction of the inner ring flow-guiding channel (6) from inlet end to outlet side is to be formed towards heavy refractory material (3)
Pie structure centre axis inclination；
The inclined direction of the outer ring flow-guiding channel (8) inclined direction from inlet end to outlet side and inner ring flow-guiding channel (6)
On the contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710680185.9A CN107448966B (en) | 2017-08-10 | 2017-08-10 | Flue gas flow mixing device for fuel-firing gas-firing combustion chamber of hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710680185.9A CN107448966B (en) | 2017-08-10 | 2017-08-10 | Flue gas flow mixing device for fuel-firing gas-firing combustion chamber of hot-blast stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107448966A CN107448966A (en) | 2017-12-08 |
| CN107448966B true CN107448966B (en) | 2019-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710680185.9A Active CN107448966B (en) | 2017-08-10 | 2017-08-10 | Flue gas flow mixing device for fuel-firing gas-firing combustion chamber of hot-blast stove |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131707A (en) * | 2019-05-14 | 2019-08-16 | 东北大学 | For preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box |
| CN114832706B (en) * | 2022-04-15 | 2023-04-14 | 杭州正创新材料有限公司 | Static mixing arrangement is used in silicone adhesive production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995376A (en) * | 1989-07-12 | 1991-02-26 | Hanson Garry O | Pulse furnace |
| CN201147678Y (en) * | 2007-12-20 | 2008-11-12 | 金川集团有限公司 | Device for mixing cold flue gas into hot flue gas |
| CN204535076U (en) * | 2014-12-10 | 2015-08-05 | 湖南华银能源技术有限公司 | A kind of heat smoke producer of lower heat of combustion coal pyrolysis gas |
| CN105841165A (en) * | 2016-06-06 | 2016-08-10 | 百色瑞成科技有限责任公司 | Garbage incinerator |
| CN206368732U (en) * | 2016-12-31 | 2017-08-01 | 东莞市美捷金属制品有限公司 | A kind of blast pipe blender |
-
2017
- 2017-08-10 CN CN201710680185.9A patent/CN107448966B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995376A (en) * | 1989-07-12 | 1991-02-26 | Hanson Garry O | Pulse furnace |
| CN201147678Y (en) * | 2007-12-20 | 2008-11-12 | 金川集团有限公司 | Device for mixing cold flue gas into hot flue gas |
| CN204535076U (en) * | 2014-12-10 | 2015-08-05 | 湖南华银能源技术有限公司 | A kind of heat smoke producer of lower heat of combustion coal pyrolysis gas |
| CN105841165A (en) * | 2016-06-06 | 2016-08-10 | 百色瑞成科技有限责任公司 | Garbage incinerator |
| CN206368732U (en) * | 2016-12-31 | 2017-08-01 | 东莞市美捷金属制品有限公司 | A kind of blast pipe blender |
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| Publication number | Publication date |
|---|---|
| CN107448966A (en) | 2017-12-08 |
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