CN107116080A - Cover AOD furnace secondary smoke negative pressure induction side - Google Patents
Cover AOD furnace secondary smoke negative pressure induction side Download PDFInfo
- Publication number
- CN107116080A CN107116080A CN201710488298.9A CN201710488298A CN107116080A CN 107116080 A CN107116080 A CN 107116080A CN 201710488298 A CN201710488298 A CN 201710488298A CN 107116080 A CN107116080 A CN 107116080A
- Authority
- CN
- China
- Prior art keywords
- smoke
- negative pressure
- cover body
- cover
- flue gas
- 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.)
- Pending
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 75
- 230000006698 induction Effects 0.000 title claims abstract description 29
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000003546 flue gas Substances 0.000 claims abstract description 37
- 238000000605 extraction Methods 0.000 claims abstract description 15
- 239000003517 fume Substances 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 206010022000 influenza Diseases 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 abstract description 5
- 238000003723 Smelting Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
Landscapes
- Chimneys And Flues (AREA)
Abstract
The present invention relates to a kind of AOD furnace secondary smoke collection device, specifically AOD furnace secondary smoke negative pressure induction side is covered, and belongs to AOD furnace flue gas trapping equipment technical field.It includes cover inner deflector, smoke evacuation cover body and baffle upper plate, several independent discharge flues will be separated into smoke extraction chamber body provided with four cover inner deflectors, four cover inner deflectors in the smoke extraction chamber body of cover body of discharging fume；Cover body upper rear portion of discharging fume is provided with multiple upper negative pressure induction type inlet scoops, and smoke evacuation cover body upper rear portion is obliquely installed baffle upper plate, and baffle upper plate is by top flue gas water conservancy diversion to upper negative pressure induction type inlet scoop.The present invention can improve flue gas trapping rate, and the trapping effect for the sudden big flue gas of smelting process is good；The cover inner deflector of arc is provided with the smoke extraction chamber body of smoke evacuation cover body, makes flue gas circulation more unobstructed, is formed and flue gas is targetedly trapped；Baffle upper plate effectively traps dead band flue gas by top flue gas water conservancy diversion to upper negative pressure induction type inlet scoop.
Description
Technical field
The present invention relates to a kind of AOD furnace secondary smoke collection device, specifically AOD furnace secondary smoke negative pressure induction
Side is covered, and belongs to AOD furnace flue gas trapping equipment technical field.
Background technology
AOD furnace is the refining equipment of argon oxygen decarburizing process, is unpacked when AOD furnace works by the lifting of workshop overhead traveling crane, charging to AOD furnace
Smelted, molten steel is toppled over to other ladles by tumbler after the completion of smelting.Fume amount is big when AOD furnace feeds, and flue gas is usual
Temperature is higher, up to more than 500 DEG C；Exhaust gas volumn is big, as process equipment develops to maximization, the flue gas produced by these equipment
Amount is very large, and the change of its smoke density and volume is also larger.
In the prior art, mainly flue gas is collected by AOD furnace smoke collecting cover.Conventional AOD furnace flue gas trapping
Cover can not trap AOD furnace secondary flue gas completely, and arresting efficiency is low, causes operating post bad environments, often by operator
Remove, be not normally functioning system.
The content of the invention
It is an object of the present invention to overcome the above deficiencies, so as to provide a kind of AOD furnace secondary smoke negative pressure induction
Side is covered, and negative pressure is formed in cover body, AOD furnace secondary flue gas can be efficiently trapped, stable and reliable in work indeformable.
According to the technical scheme that provides of the present invention, AOD furnace secondary smoke negative pressure induction side cover include cover inner deflector,
Smoke evacuation cover body and baffle upper plate, it is characterized in that：Provided with smoke evacuation cavity in enclosure body, smoke evacuation cover body lower end center is communicated with row
The cover mouthful of smoke chamber body, the cover mouthful both sides for cover body of discharging fume, which are provided with, holds court from behind a screen；Provided with four cover Inner guides in the smoke extraction chamber body of smoke evacuation cover body
Plate, four cover inner deflectors will be separated into several independent discharge flues in smoke extraction chamber body；Cover body upper rear portion discharge fume provided with many
Individual upper negative pressure induction type inlet scoop, smoke evacuation cover body upper rear portion is obliquely installed baffle upper plate, and baffle upper plate leads top flue gas
Flow in negative pressure induction type inlet scoop.
Further, hold court from behind a screen including multiple steel pipes and multiple steel chains, multiple steel-pipe weldings are in smoke evacuation cover body cover mouthful both sides, often
A steel chain is connected on individual steel pipe, steel chain is naturally drooped.
Further, the smoke evacuation housing surface lead frame fagging of smoke evacuation cover body.
Further, the supporting guide plate of triangle is provided with the smoke extraction chamber body of smoke evacuation cover body.
Further, cover inner deflector is arc.
Further, multiple upper negative pressure induction type inlet scoops are uniformly distributed along enclosure body length direction.
Further, upper negative pressure induction type inlet scoop is Long Circle.
Compared with the prior art the present invention has advantages below：
The present invention is simple in construction, compact, reasonable, it is possible to increase flue gas trapping rate, for catching for the sudden big flue gas of smelting process
Collection effect is good, and cover internal resistance is small；Discharge fume the smoke evacuation housing surface lead frame fagging of cover body, strengthen enclosure body at high temperature
Structural strength；The cover inner deflector of arc is provided with the smoke extraction chamber body of smoke evacuation cover body, makes flue gas circulation more unobstructed, is formed to flue gas
Targetedly trap；Baffle upper plate effectively traps dead band flue gas by top flue gas water conservancy diversion to upper negative pressure induction type inlet scoop；
Supporting guide plate is provided with the smoke extraction chamber body of smoke evacuation cover body, supporting guide plate increases flue gas flow rate and strengthens cover mouth intensity.
Brief description of the drawings
Fig. 1 is front view of the present invention.
Fig. 2 is top view of the present invention.
Fig. 3 is side view of the present invention.
Fig. 4 is rearview of the present invention.
Fig. 5 is upward view of the present invention.
Description of reference numerals：1- covers inner deflector, 2- hold court from behind a screen, 2.1- steel pipes, 2.2- steel chains, 3- smoke evacuation cover body, 4- frameworks
The upper negative pressure induction type inlet scoop of fagging, 5-, 6- baffle upper plates, 7- supporting guide plates.
Embodiment
The present invention will be further described with reference to the embodiment in accompanying drawing below：
As shown in Fig. 1 ~ 5, the invention mainly comprises cover inner deflector 1, smoke evacuation cover body 3 and baffle upper plate 6.
Provided with smoke evacuation cavity in smoke evacuation cover body 3, smoke evacuation cover body 3 lower end center is communicated with the cover mouthful of smoke evacuation cavity, AOD furnace
Most flue gas enters smoke evacuation cover body 3 from cover mouthful.Discharge fume cover body 3 cover mouthful both sides provided with holding court from behind a screen 2, hold court from behind a screen 2 primarily serve it is close
Envelope is acted on, and reduces wild air quantity, prevents flue dust from escaping.
It is described hold court from behind a screen 2 include multiple steel pipes 2.1 and multiple steel chains 2.2, multiple steel pipes 2.1 be welded on smoke evacuation the cover mouth of cover body 3
A steel chain 2.2 is connected on both sides, each steel pipe 2.1, steel chain 2.2 is naturally drooped.
Discharge fume the smoke evacuation housing surface lead frame fagging 4 of cover body 3, framework fagging 4 strengthens enclosure body 3 at high temperature
Structural strength.
Cover inner deflector 1 provided with four arcs in the smoke extraction chamber body of smoke evacuation cover body 3, four cover inner deflectors 1 will discharge fume
Several independent discharge flues are separated into cavity, formation is targetedly trapped to flue gas.The cover inner deflector 1 of arc allows flue gas
Circulation is more unobstructed.
The upper rear portion of cover body 3 of the discharging fume upper negative pressure provided with multiple Long Circles induction type inlet scoop 5, multiple upper negative pressure are lured
Conduction inlet scoop 5 is uniformly distributed along the smoke evacuation length direction of cover body 3, and upper negative pressure induction type inlet scoop 5 can be by dead band flue gas
Trapping is got off.The smoke evacuation upper rear portion of cover body 3 is obliquely installed baffle upper plate 6, and baffle upper plate 6 is by top flue gas water conservancy diversion to upper negative pressure
In induction type inlet scoop 5.
The supporting guide plate 7 of triangle, the increase flue gas flow rate of supporting guide plate 7 are provided with the smoke extraction chamber body of smoke evacuation cover body 3
With enhancing cover mouth intensity.
The present invention is simple in construction, compact, reasonable, it is possible to increase flue gas trapping rate, for the sudden big flue gas of smelting process
Trapping effect it is good, cover internal resistance is small；The smoke evacuation housing surface lead frame fagging of smoke evacuation cover body, strengthens enclosure body in high temperature
Under structural strength；The cover inner deflector of arc is provided with the smoke extraction chamber body of smoke evacuation cover body, makes flue gas circulation more unobstructed, formation pair
Flue gas is targetedly trapped；Baffle upper plate effectively traps dead band by top flue gas water conservancy diversion to upper negative pressure induction type inlet scoop
Flue gas；Supporting guide plate is provided with the smoke extraction chamber body of smoke evacuation cover body, supporting guide plate increases flue gas flow rate and strengthens cover mouth intensity.
Claims (7)
1. a kind of AOD furnace secondary smoke negative pressure induction side is covered, including cover inner deflector（1）, smoke evacuation cover body（3）With upper water conservancy diversion
Plate（6）, it is characterized in that：Smoke evacuation cover body（3）It is interior to be provided with smoke evacuation cavity, cover body of discharging fume（3）Lower end center is communicated with cavity of discharging fume
Cover mouthful, cover body of discharging fume（3）Cover mouthful both sides provided with holding court from behind a screen（2）；Smoke evacuation cover body（3）Smoke extraction chamber body in provided with four cover in lead
Flow plate（1）, four cover inner deflectors（1）Several independent discharge flues will be separated into smoke extraction chamber body；Smoke evacuation cover body（3）The back side
Top is provided with multiple upper negative pressure induction type inlet scoops（5）, cover body of discharging fume（3）Upper rear portion is obliquely installed baffle upper plate（6）, on
Deflector（6）By top flue gas water conservancy diversion to upper negative pressure induction type inlet scoop（5）It is interior.
2. AOD furnace secondary smoke negative pressure induction side as claimed in claim 1 is covered, it is characterized in that：It is described to hold court from behind a screen（2）Including
Multiple steel pipes（2.1）With multiple steel chains（2.2）, multiple steel pipes（2.1）It is welded on smoke evacuation cover body（3）Cover mouth both sides, each steel pipe
（2.1）One steel chain of upper connection（2.2）, steel chain（2.2）Naturally droop.
3. AOD furnace secondary smoke negative pressure induction side as claimed in claim 1 is covered, it is characterized in that：The smoke evacuation cover body（3）
Smoke evacuation housing surface lead frame fagging（4）.
4. AOD furnace secondary smoke negative pressure induction side as claimed in claim 1 is covered, it is characterized in that：The smoke evacuation cover body（3）
Smoke extraction chamber body in be provided with triangle supporting guide plate（7）.
5. AOD furnace secondary smoke negative pressure induction side as claimed in claim 1 is covered, it is characterized in that：The cover inner deflector
（1）For arc.
6. AOD furnace secondary smoke negative pressure induction side as claimed in claim 1 is covered, it is characterized in that：The multiple upper negative pressure
Field induction type inlet scoop（5）Along smoke evacuation cover body（3）Length direction is uniformly distributed.
7. AOD furnace secondary smoke negative pressure induction side as claimed in claim 6 is covered, it is characterized in that：The upper negative pressure is lured
Conduction inlet scoop（5）For Long Circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710488298.9A CN107116080A (en) | 2017-06-23 | 2017-06-23 | Cover AOD furnace secondary smoke negative pressure induction side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710488298.9A CN107116080A (en) | 2017-06-23 | 2017-06-23 | Cover AOD furnace secondary smoke negative pressure induction side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107116080A true CN107116080A (en) | 2017-09-01 |
Family
ID=59719368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710488298.9A Pending CN107116080A (en) | 2017-06-23 | 2017-06-23 | Cover AOD furnace secondary smoke negative pressure induction side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107116080A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526326Y (en) * | 2002-03-15 | 2002-12-18 | 郑岩 | Top-draught smoke trapping hood for tap hole of blast furnace |
| CN201362727Y (en) * | 2009-03-05 | 2009-12-16 | 无锡三达环保科技有限公司 | Compound inductive upper smoke arrestment hood of converter for secondary smoke arrestment |
| CN201380012Y (en) * | 2009-03-10 | 2010-01-13 | 无锡三达环保科技有限公司 | Spark collection-type low-pressure impulse bag dust remover |
| CN105750292A (en) * | 2016-04-28 | 2016-07-13 | 无锡三达环保科技有限公司 | Ladle detaching capturing hood for AOD furnace |
-
2017
- 2017-06-23 CN CN201710488298.9A patent/CN107116080A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526326Y (en) * | 2002-03-15 | 2002-12-18 | 郑岩 | Top-draught smoke trapping hood for tap hole of blast furnace |
| CN201362727Y (en) * | 2009-03-05 | 2009-12-16 | 无锡三达环保科技有限公司 | Compound inductive upper smoke arrestment hood of converter for secondary smoke arrestment |
| CN201380012Y (en) * | 2009-03-10 | 2010-01-13 | 无锡三达环保科技有限公司 | Spark collection-type low-pressure impulse bag dust remover |
| CN105750292A (en) * | 2016-04-28 | 2016-07-13 | 无锡三达环保科技有限公司 | Ladle detaching capturing hood for AOD furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170901 |
|
| RJ01 | Rejection of invention patent application after publication |