CN206607264U - The excessive device of flue dust is prevented under a kind of converter dry dedusting accident condition - Google Patents
The excessive device of flue dust is prevented under a kind of converter dry dedusting accident condition Download PDFInfo
- Publication number
- CN206607264U CN206607264U CN201621363148.2U CN201621363148U CN206607264U CN 206607264 U CN206607264 U CN 206607264U CN 201621363148 U CN201621363148 U CN 201621363148U CN 206607264 U CN206607264 U CN 206607264U
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- CN
- China
- Prior art keywords
- gas
- flue
- drainage pipeline
- atomizing lance
- flue dust
- 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.)
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- 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
Abstract
The utility model discloses the excessive device of flue dust is prevented under a kind of converter dry dedusting accident condition, belong to converter dust-removing equipment technical field.The front end of gasification cooling flue is provided with movable gas hood, the rear end of gasification cooling flue is connected with devaporizer, electrostatic precipitator and blower fan successively, the rear end of blower fan is connected by gas piping with gas cooler and gas chamber, gas piping upper end is connected with diffusing chimney, outer mixed atomizing lance is installed on diffusing chimney, swash plate is provided with below mixed atomizing lance outside, drainage pipeline is connected with below swash plate, drainage pipeline bottom is provided with coal gas overflow water seal.It effectively prevents flue dust excessive, while sewage is handled between by draining into sewage conduct outside drainage pipeline and coal gas overflow water seal, eventually arriving at sewage disposal, so as to ensure that environment protection emission is up to standard.
Description
Technical field：
The utility model, which is related under a kind of converter dry dedusting accident condition, prevents the excessive device of flue dust, belongs to converter and removes
Dirt equipment technical field.
Background technology：
The development that is produced with oxygen converter steelmaking and process for making are gradually improved, and dedusting technology is also evolving into
It is ripe.The Recovery Purifying of oxygen converter steelmaking mainly has two methods, i.e. gas wet and coal gas dry-method, from stricter environmental protection
Seen with power conservation requirement, converter dry dedusting technology is more suitable for the requirement of metallurgical industry sustainable development.
Converter dry dust collecting process cools down for the flue gas produced in converter steelmaking process by cooling stack into vaporation-type
The steam feeding steam pipe system produced in device, cooling stack.In cooler, flue-gas temperature drops to about 200 DEG C from 1000 DEG C,
The cinder in flue gas is removed in the process, and fine ash is finally removed in electrostatic precipitator.Flue gas after dedusting enters through blower fan
Enter switching system, according to CO in flue gas and O2Concentration determine reclaim or diffuse.Coal gas after recovery enters after cooling down again
Gas chamber, supplies coal gas user and uses after being pressurizeed by pressuring machine.
In converter steelmaking process, constantly change in the composition for opening the flue gas in incipient stage for blowing or re-blowing, stove,
CO contents are gradually stepped up in flue gas, O2Content is gradually reduced, if control is not in place in terms of smelting, easily reaches CO 9% simultaneously
And O2The 6% Mixed Gases Explosion limit, so as to run into electric spark in electrostatic precipitator, occurs detonation, causes deduster to remove
Dirt effect drastically declines, and causes diffusing chimney to have visible flue dust excessive.Therefore how under above extreme case, it is ensured that environmental protection row
Unconventional and unrestrained mark, is urgent problem to be solved.
Utility model content：
In view of the above-mentioned problems, the technical problems to be solved in the utility model is to provide a kind of converter dry dedusting accident condition
Under prevent the excessive device of flue dust, this device can prevent flue dust excessive from diffusing tower under extreme accident condition so that
Ensure that environment protection emission is up to standard.
The excessive device of flue dust is prevented under a kind of converter dry dedusting accident condition of the present utility model, it includes movable cigarette
Cover 1, gasification cooling flue 2, devaporizer 3, electrostatic precipitator 4, blower fan 5, diffusing chimney 6, gas cooler 7, gas chamber
8th, PLC control cabinet 9, outer mixed atomizing lance 10, swash plate 11, drainage pipeline 12, oxygen conten analyser 13, carbonyl analyzer
14th, the repid cut-off valve 15 of aqueous medium, gas medium repid cut-off valve 16 and coal gas overflow water seal 17, gasification cooling flue 2
Front end is provided with movable gas hood 1, the rear end of gasification cooling flue 2 successively with, devaporizer 3, electrostatic precipitator 4 and blower fan 5
Connection, the rear end of blower fan 5 is connected by gas piping A with gas cooler 7 and gas chamber 8, and gas piping A upper ends, which are connected with, puts
Dissipate and outer mixed atomizing lance 10 is installed on chimney 6, diffusing chimney 6, the lower section of outer mixed atomizing lance 10 is provided with swash plate 11, oblique
The lower section of plate 11 is connected with drainage pipeline 12, and the bottom of drainage pipeline 12 is provided with coal gas overflow water seal 17.
Preferably, repid cut-off valve 15 and gas medium that aqueous medium is provided with described outer mixed atomizing lance 10 are fast
Fast stop valve 16.
Preferably, oxygen conten analyser 13 and carbonyl analyzer 14 are provided with described gas piping A, it is described
Outer mixed atomizing lance 10, oxygen conten analyser 13 and carbonyl analyzer 14 with PLC control cabinet 9 control be connected.
The beneficial effects of the utility model：It can according to the change of gas componant in flue gas, according to oxygen conten analyser with
The numerical value monitoring of carbon monoxide content analyzer, when mixed gas is close to the mixed explosion limit, rapid atomization gas of opening is cut
Disconnected valve and atomized water stop valve, reach the effect of dedusting again, effectively prevent flue dust excessive, at the same sewage by drainage pipeline with
Sewage conduct is drained into outside coal gas overflow water seal, eventually arrives at and is handled between sewage disposal, so as to ensure that environment protection emission is up to standard.
Brief description of the drawings：
For ease of explanation, the utility model is described in detail by following specific implementations and accompanying drawing.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the cross-sectional view of diffusing chimney；
Fig. 3 is the structural representation of outer mixed atomizing lance.
Reference：Movable gas hood 1, gasification cooling flue 2, devaporizer 3, electrostatic precipitator 4, blower fan 5, diffuse cigarette
Chimney 6, gas cooler 7, gas chamber 8, PLC control cabinet 9, outer mixed atomizing lance 10, swash plate 11, drainage pipeline 12, oxygen content point
Analyzer 13, carbonyl analyzer 14, the repid cut-off valve 15 of aqueous medium and gas medium repid cut-off valve 16, coal gas overflow water
Envelope 17.
Embodiment：
As shown in Figure 1-Figure 3, present embodiment uses following technical scheme：It includes movable gas hood 1, Vaporizing cooling
Flue 2, devaporizer 3, electrostatic precipitator 4, blower fan 5, diffusing chimney 6, gas cooler 7, gas chamber 8, PLC control cabinet 9,
Outer mixed atomizing lance 10, swash plate 11, drainage pipeline 12, oxygen conten analyser 13, carbonyl analyzer 14, aqueous medium it is quick
Stop valve 15, gas medium repid cut-off valve 16 and coal gas overflow water seal 17, the front end of gasification cooling flue 2 is provided with movable cigarette
Cover 1, the rear end of gasification cooling flue 2 successively with, devaporizer 3, electrostatic precipitator 4 and blower fan 5 be connected, the rear end of blower fan 5
It is connected by gas piping A with gas cooler 7 and gas chamber 8, gas piping A upper ends are connected with diffusing chimney 6, diffusing chimney
Outer mixed atomizing lance 10 is installed, the lower section of outer mixed atomizing lance 10 is provided with swash plate 11, is connected with the lower section of swash plate 11 on 6
Drainage pipeline 12, the bottom of drainage pipeline 12 is provided with coal gas overflow water seal 17.
Preferably, repid cut-off valve 15 and gas medium that aqueous medium is provided with described outer mixed atomizing lance 10 are fast
Fast stop valve 16.
Preferably, oxygen conten analyser 13 and carbonyl analyzer 14 are provided with described gas piping A, it is described
Outer mixed atomizing lance 10, oxygen conten analyser 13 and carbonyl analyzer 14 with PLC control cabinet 9 control be connected.
The operation principle of present embodiment is：The flue gas produced in converter steelmaking process passes through gasification cooling flue 2
Into devaporizer 3, in devaporizer 3, flue-gas temperature drops to about 200 DEG C from 1000 DEG C, in the process flue gas
In cinder be removed, finally remove fine ash in electrostatic precipitator 4.Flue gas after dedusting enters oxygen analysis through blower fan 5
Instrument 13 and carbonyl analyzer 14, oxygen conten analyser 13 and carbonyl analyzer 14 are by PLC control cabinet 9 according to flue gas
Middle CO and O2Concentration determine reclaim or diffuse.Coal gas after recovery enters gas chamber after cooling down again, by pressuring machine plus
Coal gas user is supplied after pressure to use.If flue gas reaches CO 9% and O2The 6% Mixed Gases Explosion limit, in electrostatic precipitation
Run into electric spark in device 4, occur the repid cut-off valve 15 of aqueous medium in detonation, diffusing chimney 6 and gas medium fast shut-off
Valve 16 can be opened rapidly, reached the effect of dedusting again, effectively prevented flue dust excessive, while sewage passes through drainage pipeline 12 and coal
Sewage conduct is drained into outside gas overflow water seal 17, eventually arrives at and is handled between sewage disposal.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (3)
1. the excessive device of flue dust is prevented under a kind of converter dry dedusting accident condition, it is characterised in that：It includes movable gas hood
(1), gasification cooling flue (2), devaporizer (3), electrostatic precipitator (4), blower fan (5), diffusing chimney (6), coal gas cooling
Device (7), gas chamber (8), PLC control cabinet (9), outer mixed atomizing lance (10), swash plate (11), drainage pipeline (12), oxygen content point
Analyzer (13), carbonyl analyzer (14), the repid cut-off valve (15) of aqueous medium, gas medium repid cut-off valve (16) and coal
Gas overflow water seal (17), the front end of gasification cooling flue (2) is provided with movable gas hood (1), the rear end of gasification cooling flue (2) according to
Secondary to be connected with devaporizer (3), electrostatic precipitator (4) and blower fan (5), the rear end of blower fan (5) passes through gas piping (A) and coal
Gas Cooler (7) and gas chamber (8) connection, gas piping (A) upper end is connected with diffusing chimney (6), diffusing chimney (6) and installed
Have and be provided with swash plate (11) below outer mixed atomizing lance (10), outer mixed atomizing lance (10), connected in the lower section of swash plate (11)
There is drainage pipeline (12), drainage pipeline (12) bottom is provided with coal gas overflow water seal (17).
2. prevent the excessive device of flue dust, its feature under a kind of converter dry dedusting accident condition according to claim 1
It is：The repid cut-off valve (15) and gas medium repid cut-off valve of aqueous medium are provided with described outer mixed atomizing lance (10)
(16)。
3. prevent the excessive device of flue dust, its feature under a kind of converter dry dedusting accident condition according to claim 1
It is：Oxygen conten analyser (13) and carbonyl analyzer (14) are provided with described gas piping (A), described is outer mixed
Atomizing lance (10), oxygen conten analyser (13) and carbonyl analyzer (14) are connected with PLC control cabinet (9) control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621363148.2U CN206607264U (en) | 2016-12-05 | 2016-12-05 | The excessive device of flue dust is prevented under a kind of converter dry dedusting accident condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621363148.2U CN206607264U (en) | 2016-12-05 | 2016-12-05 | The excessive device of flue dust is prevented under a kind of converter dry dedusting accident condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206607264U true CN206607264U (en) | 2017-11-03 |
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ID=60170968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621363148.2U Expired - Fee Related CN206607264U (en) | 2016-12-05 | 2016-12-05 | The excessive device of flue dust is prevented under a kind of converter dry dedusting accident condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206607264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858477A (en) * | 2017-11-20 | 2018-03-30 | 唐山新宝泰钢铁有限公司 | Converter gas composite dedusting system |
-
2016
- 2016-12-05 CN CN201621363148.2U patent/CN206607264U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858477A (en) * | 2017-11-20 | 2018-03-30 | 唐山新宝泰钢铁有限公司 | Converter gas composite dedusting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 Termination date: 20181205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |