CN108660281A - A kind of kindling material capturing device - Google Patents
A kind of kindling material capturing device Download PDFInfo
- Publication number
- CN108660281A CN108660281A CN201810761896.3A CN201810761896A CN108660281A CN 108660281 A CN108660281 A CN 108660281A CN 201810761896 A CN201810761896 A CN 201810761896A CN 108660281 A CN108660281 A CN 108660281A
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- CN
- China
- Prior art keywords
- pipeline section
- capturing device
- kindling material
- material capturing
- flow field
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
- C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
-
- 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)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a kind of kindling material capturing devices, the kindling material capturing device is made of tubular structure, the kindling material capturing device includes the decline pipeline section (21) being arranged alternately and rising pipeline section (22), decline the entry position of pipeline section (21) higher than the outlet port for declining pipeline section (21), rise the entry position of pipeline section (22) less than the outlet port for rising pipeline section (22), adjacent two, which decline, to be connected between pipeline section (21) and rising pipeline section (22) by upper interconnecting piece (23) or lower interconnecting piece (24), flow field perturbations (3) are equipped in lower interconnecting piece (24).
Description
Technical field
The present invention relates to smelting equipment field, a kind of particularly kindling material capturing device.
Background technology
Much the production of smelting processes is intermittent, such as converter, electric furnace.The production of these smelting furnaces generally can be divided into two
Section, one section is smelting, and one section is to smelt to prepare (addition etc. of output object transported with raw material).
In converter producing, after being smelted to raw materials such as molten iron, steel scraps in stove and handle qualification, stop smelting, converter
It needs to pour out on qualified molten steel, charging prepares to smelt again later.In smelting process, smelt generation, escaped by converter mouth
The furnace gas gone out is mainly the fuel gas of high temperature, high dirt, and furnace gas temperature the largest of about can be 1600 DEG C；The sky of flue is sucked by fire door
Gas together forms flue gas with furnace gas, and dustiness is about 120g/Nm3, the principal combustible gas componant in flue gas is CO, wherein CO
Maximum concentration up to 90%.This flue gas reuses after being normally used as combustible gas collecting, dedusting, referred to as coal gas of converter.
For the purpose of safety, after oxygen content is more than 2% in flue gas, usually no longer it is collected use.
Durings tapping, the charging etc. that converter smelting prepares, a small amount of cigarette, dirt and a large amount of air form mixture,
Dustiness is less than about 1g/Nm3, no fuel gas, flue-gas temperature about can be 100 DEG C at this time, smoke components and air at tap
Closely.
From smelting go to smelting prepare when, and from smelt prepare go to smelting when, due to CO concentration in flue gas, air concentration
Variation, the mixture of explosion risk can be formed with.To prevent the generation of explosion, two methods are generally used：First, passing through
Rational flue structure is set, converter gas is made to form plug flow, the cigarette for the heterogeneity that different moments generate in flue
Gas is not in a large amount of mixing when being conveyed in flue, thus reduces the production quantity for the mixture for having explosion risk.Two
It is to be sprayed to flue gas with water mist before flue-gas temperature is up to blast temperature region, quickly extinguishes the fire in flue gas
Kind (i.e. the particulate matter of high temperature).This spray also becomes the high temperature heat contained in flue gas for low temperature while fire extinguishing
Thermal energy, because rather than energy-efficient effective ways.
Invention content
In order to solve the problems, such as energy waste existing for existing extinguishing kindling material.The present invention provides a kind of kindling material capturing device,
The kindling material capturing device will bring the thorough change of converter gas treatment process, can fully achieve the full waste heat of converter gas
Recycling.
Technological invention used by the present invention solves its technical problem is：A kind of kindling material capturing device, kindling material trapping dress
It sets in tubular construction, which includes the decline pipeline section being arranged alternately and rise pipeline section, declines the entrance position of pipeline section
It sets and rises outlet port of the entry position of pipeline section less than rising pipeline section higher than the outlet port for declining pipeline section, adjacent two
Decline and be connected to by upper interconnecting piece or lower interconnecting piece between pipeline section and rising pipeline section, flow field perturbations are equipped in lower interconnecting piece.
The kindling material capturing device contains first set gradually and declines pipeline section, first rising pipeline section, second decline
Pipeline section, second rising pipeline section and third decline pipeline section.
The tube wall of the kindling material capturing device is heat dissipation type tube wall or heat-insulating tube wall.
When the kindling material capturing device is heat dissipation type tube wall, which is membrane wall, and the cooling of the membrane wall is situated between
Matter is water, conduction oil or fused salt.
Flow field perturbations are heat guard.
Flow field perturbations are wear-resistant pipe.
Flow field perturbations are bulge-structure or sunk structure.
Flow field perturbations are less than flow field perturbations to the distance for declining pipeline section to the distance for rising pipeline section.
The lower end of lower interconnecting piece is equipped with particulate collection or discharge structure, the position of flow field perturbations and particulate collection
Or the position of discharge structure is corresponding up and down.
The beneficial effects of the invention are as follows：
1, (800 DEG C~1000 DEG C) by the big energetic particles that may be carried in converter gas or roll into a ball ash fire in high-temperature flue
Kind is separated, and hidden peril of explosion is eliminated.
2, the plug flow that flue gas is realized during kindling material traps farthest reduces explosive gas, realizes and turns
The full waste heat recovery of kiln gas.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.
Fig. 1 is the schematic diagram of kindling material capturing device of the present invention.
1, cooling stack；2, kindling material capturing device；3, flow field perturbations；4, particulate collection or discharge structure；5, turn
Stove；
21, decline pipeline section；22, rise pipeline section；23, upper interconnecting piece；24, lower interconnecting piece.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of kindling material capturing device, the kindling material capturing device 2 (are referred to as kindling material trapping flue) in tubular construction, should
Kindling material capturing device 2 includes the decline pipeline section 21 that is arranged alternately and rises pipeline section 22, decline pipeline section 21 entry position be higher than under
The outlet port of pipeline section 21 is dropped, rises the entry position of pipeline section 22 less than the outlet port for rising pipeline section 22, under adjacent two
It drops and is connected to by upper interconnecting piece 23 or lower interconnecting piece 24 between pipeline section 21 and rising pipeline section 22, is disturbed equipped with flow field in lower interconnecting piece 24
Dynamic structure 3, as shown in Figure 1.Wherein, the effect of flow field perturbations 3 is：Change velocity vector distribution, in particle concentration
Higher region formed a certain range of low regime (can be understood as change 3 surrounding fluid of flow field perturbations flow direction,
Reduce the flowing velocity of 3 surrounding fluid of flow field perturbations).
The entrance of the kindling material capturing device 2 is connected with cooling stack 1, and cooling stack 1 uses plunger flow flue, cooling stack
1 wall surface is provided with absorber, the radiation heat release of high-temperature flue gas is absorbed while guiding flue gas, flue gas and institute's dust-laden are through cold
But the elbow at 1 top of flue enters kindling material capturing device 2, and the flue-gas temperature into kindling material capturing device 2 is not up to blast temperature
Region.While kindling material capturing device 2 is using plug flow flue structure, flow field perturbations 3 are provided with, gravity and centrifugation are utilized
Bulky grain and group in the effect rapid acquiring flue gas of power is grey (kindling material).
In the present embodiment, which contains first decline pipeline section, 21, first risings set gradually
Pipeline section 22, second declines pipeline section 21, second and rises pipeline section 22 and third decline pipeline section 21, as shown in Figure 1.Flue gas enters
Decline, up and down, raising and lowering stage will be undergone after the kindling material capturing device 2 successively.
In the present embodiment, the tube wall of the kindling material capturing device 2, which can be radiator, can also make heat guard.When the fire
When the tube wall of kind capturing device 2 is radiator, i.e., the tube wall of the kindling material capturing device 2 is heat dissipation type tube wall, kindling material trapping dress
When the tube wall set is membrane wall, the cooling medium of the membrane wall can be water, conduction oil or fused salt etc..The type of cooling is generally evaporated
It is cooling, or cool down without phase-change.
In the present embodiment, the structure of flow field perturbations 3 can be heat guard or wear-resistant pipe or wall surface
Raised or sunken or flow field perturbations 3 be that protrusion and the alternately arranged structure of being recessed (can be understood as being similar to washboard
The planform of plate surface).Flow field perturbations 3 are less than flow field perturbations 3 to decline pipeline section to the distance for rising pipeline section 22
21 distance, as flow field perturbations 3 are located at the lower section of rising pipeline section 22.The lower end of lower interconnecting piece 24 be equipped with particulate collection or
The position of discharge structure 4, flow field perturbations 3 is corresponding up and down with the position of particulate collection or discharge structure 4, i.e., particulate matter is received
Collection or discharge structure 4 are located at the underface of flow field perturbations 3.
In the present embodiment, particulate collection or discharge structure 4 are lime-ash floss hole.Being set as lime-ash floss hole is multiple
Single mouth is set up in parallel.The size of lime-ash floss hole is smaller, does not influence the plug flow movement of flue gas.Lime-ash floss hole only exists
Discharge is just opened when the ingredient of flue gas is air.
In the present embodiment, the 2 serpentine-like pipe structure of kindling material capturing device will using kindling material its own gravity and inertia force
Group's ash, bulky grain etc. are detached from flue gas.The pipe design of the kindling material capturing device 2 should ensure that flow of flue gas is smooth.Flue gas exists
Liquid form in the kindling material capturing device 2 is similar to plug flow.There is no flue gas residence is apparent in the kindling material capturing device 2
The regions such as whirlpool.
Cylindrical shape or rectangular may be used in the appearance of cooling stack 1.The shape of membrane wall may be used in cooling stack 1
The cooling medium of formula, membrane wall generally uses water or conduction oil, fused salt etc..The type of cooling generally evaporates cooling, also may be used
To cool down without phase-change.The design of cooling stack 1 ensures that flow of flue gas is smooth.Liquid form of the flue gas in cooling stack 1 is approximate
In plug flow.There is no the regions such as the apparent whirlpool of flue gas residence in cooling stack 1.
When in use, the high-temperature flue gas that converter 5 generates in smelting process passes through the cooling stack 1 above converter
800 DEG C~1000 DEG C are cooled to based on radiation heat transfer to flue gas, then sequentially enters kindling material capturing device 2 of the present invention.
The high temperature solids separations such as bulky grain, group's ash that kindling material capturing device 2 can carry converter gas, and outside discharger.
The above, only specific embodiments of the present invention, the range that cannot be implemented with its restriction invention, so it is equivalent
The displacement of component, or according to equivalent variations made by scope of patent protection of the present invention and modification, should all still fall within what this patent was covered
Scope.In addition, between technical characteristic and technical characteristic in the present invention, between technical characteristic and technological invention, technological invention with
Use can be freely combined between technological invention.
Claims (9)
1. a kind of kindling material capturing device, which is characterized in that the kindling material capturing device is made of tubular structure, the kindling material capturing device
Including the decline pipeline section (21) being arranged alternately and rise pipeline section (22), declines the entry position of pipeline section (21) higher than decline pipeline section
(21) outlet port rises the entry position of pipeline section (22) less than the outlet port for rising pipeline section (22), under adjacent two
It drops and is connected to by upper interconnecting piece (23) or lower interconnecting piece (24) between pipeline section (21) and rising pipeline section (22), in lower interconnecting piece (24)
Equipped with flow field perturbations (3).
2. kindling material capturing device according to claim 1, which is characterized in that the kindling material capturing device, which contains, to be set gradually
First decline pipeline section (21), first rise pipeline section (22), second decline pipeline section (21), second rise pipeline section (22) and
Third declines pipeline section (21).
3. kindling material capturing device according to claim 1, which is characterized in that the tube wall of the kindling material capturing device is heat dissipation type
Tube wall or heat-insulating tube wall.
4. kindling material capturing device according to claim 3, which is characterized in that when the kindling material capturing device is heat dissipation type tube wall
When, which is membrane wall, and the cooling medium of the membrane wall is water, conduction oil or fused salt.
5. kindling material capturing device according to claim 1, which is characterized in that flow field perturbations (3) are heat guard.
6. kindling material capturing device according to claim 1, which is characterized in that flow field perturbations (3) are wear-resistant material system
At.
7. kindling material capturing device according to claim 1, which is characterized in that flow field perturbations (3) be bulge-structure or
Sunk structure.
8. kindling material capturing device according to claim 1, which is characterized in that flow field perturbations (3) to rising pipeline section
(22) distance is less than flow field perturbations (3) to the distance for declining pipeline section (21).
9. kindling material capturing device according to claim 1, which is characterized in that the lower end of lower interconnecting piece (24) is equipped with particulate matter
Collect or discharge structure (4), the position of flow field perturbations (3) with it is right above and below the position of particulate collection or discharge structure (4)
It answers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810761896.3A CN108660281A (en) | 2018-07-12 | 2018-07-12 | A kind of kindling material capturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810761896.3A CN108660281A (en) | 2018-07-12 | 2018-07-12 | A kind of kindling material capturing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108660281A true CN108660281A (en) | 2018-10-16 |
Family
ID=63774096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810761896.3A Pending CN108660281A (en) | 2018-07-12 | 2018-07-12 | A kind of kindling material capturing device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476015A (en) * | 2008-01-02 | 2009-07-08 | 中冶京诚工程技术有限公司 | AOD converter flue gas waste heat recovery apparatus |
| CN102538497A (en) * | 2012-03-01 | 2012-07-04 | 九源天能（北京）科技有限公司昆明分公司 | Method and device for recovery and full-effect utilization of flue gas thermal energy of steel converter |
| CN105562204A (en) * | 2015-12-30 | 2016-05-11 | 东北大学 | Flue gas purification device and method for trapping PM2.5-PM10 in advancing magnetic field by means of magnetic porous media |
| CN106440840A (en) * | 2016-11-30 | 2017-02-22 | 安徽工业大学 | Selective emission reduction system and method for smoke PM10/2.5 in iron mine sintering process |
| CN206580852U (en) * | 2017-02-15 | 2017-10-24 | 中冶南方工程技术有限公司 | A kind of converter gas waste heat depth recovery system |
-
2018
- 2018-07-12 CN CN201810761896.3A patent/CN108660281A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476015A (en) * | 2008-01-02 | 2009-07-08 | 中冶京诚工程技术有限公司 | AOD converter flue gas waste heat recovery apparatus |
| CN102538497A (en) * | 2012-03-01 | 2012-07-04 | 九源天能（北京）科技有限公司昆明分公司 | Method and device for recovery and full-effect utilization of flue gas thermal energy of steel converter |
| CN105562204A (en) * | 2015-12-30 | 2016-05-11 | 东北大学 | Flue gas purification device and method for trapping PM2.5-PM10 in advancing magnetic field by means of magnetic porous media |
| CN106440840A (en) * | 2016-11-30 | 2017-02-22 | 安徽工业大学 | Selective emission reduction system and method for smoke PM10/2.5 in iron mine sintering process |
| CN206580852U (en) * | 2017-02-15 | 2017-10-24 | 中冶南方工程技术有限公司 | A kind of converter gas waste heat depth recovery system |
Non-Patent Citations (1)
| Title |
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| 赵旭德: "《中小企业环保设备运行管理手册》", 中国环境科学出版社, pages: 6 - 7 * |
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