CN109163572A - A kind of electric furnace flue gas dust-extraction unit storing flue gas - Google Patents
A kind of electric furnace flue gas dust-extraction unit storing flue gas Download PDFInfo
- Publication number
- CN109163572A CN109163572A CN201810995403.2A CN201810995403A CN109163572A CN 109163572 A CN109163572 A CN 109163572A CN 201810995403 A CN201810995403 A CN 201810995403A CN 109163572 A CN109163572 A CN 109163572A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- electric furnace
- flue
- roof cover
- water
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning 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
- 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 present invention provides the electric furnace flue gas dust-extraction units that one kind can store flue gas, not only can effectively carry out fume treatment, and can reduce equipment volume, to reduce material utilization amount, reduce investment cost and operation energy consumption；It includes the electric furnace being linked in sequence, firehole smoke exhaust pipe, water-cooled flue, combustion settling chamber, air cooler, booster fan, roof cover is provided with above the electric furnace, and the in line mouth of the roof cover connect with the booster fan after be linked in sequence bag filter, dedusting fan, chimney, safety valve is equipped between the roof cover and the bag filter, it further includes storage cigarette blower, by-passing valve, flue gas memotron, the roof cover is equipped with by-pass port, the by-pass port is connected after the storage cigarette blower with the flue gas memotron, the by-passing valve is connected to the flue gas memotron, between in line mouth.
Description
Technical field
The present invention relates to technical field of energy saving and environmental protection, specially a kind of electric furnace flue gas dust-extraction unit that can store flue gas.
Background technique
Existing steel-smelting electric furnace flue gas dust collecting system, mainly by electric furnace, firehole smoke exhaust pipe, water-cooled flue, combustion settling chamber,
The composition such as air cooler, booster fan, roof cover, safety valve, bag filter, dedusting fan, chimney, under normal circumstances, electric furnace
The flue gas generated in charging, tapping is trapped by roof cover, is then filtered using bag filter, filtered gas is by discharging
Chimney is discharged into atmosphere；And electric furnace high-temperature flue gas for generating when oxygen blast is smelted is discharged by firehole smoke exhaust pipe, after supercooling with by
The secondary flue gas that roof cover is collected and is discharged mixes, and is then filtered using bag filter, filtered gas is by blowdown stack
It is discharged into atmosphere, in the entirely steel-making period, the exhaust gas volumn generated when feeding, tapping is maximum, the time is most short, and existing dedusting system
Low discharge fume treatment when the big flow flue gas of system either in short-term is still normal is set according to the setting dedusting of maximum exhaust gas volumn
Standby, so that dust pelletizing system and cleaner volume are very huge, this also just needs to consume a large amount of material, thus investment cost and
Operation energy consumption is relatively high.
Summary of the invention
For existing dust pelletizing system in fume treatment, need using the biggish cleaner of volume, so that material consumption
Greatly, investment cost is improved and the problem of operation energy consumption, the present invention provides the electric furnace flue gas dust-extraction unit that one kind can store flue gas,
It not only can effectively carry out fume treatment, and can reduce equipment volume, to reduce material utilization amount, reduce investment cost and fortune
Row energy consumption.
Its technical solution is such that it includes the electric furnace being linked in sequence, firehole smoke exhaust pipe, water-cooled flue, burning sedimentation
Room, air cooler, booster fan, the electric furnace top are provided with roof cover, and the in line mouth of the roof cover and the pressurization wind
Sequential connection bag filter, dedusting fan, chimney after machine connection, are equipped with peace between the roof cover and the bag filter
Full valve, which is characterized in that it further includes storage cigarette blower, by-passing valve, flue gas memotron, and the roof cover is equipped with by-pass port, institute
By-pass port is stated to be connected after the storage cigarette blower with the flue gas memotron, the by-passing valve be connected to the flue gas memotron,
Between in line mouth.
It is further characterized by:
The water-cooled flue is divided into the first water-cooled flue, the second water-cooled flue, and the combustion settling chamber is connected to first water
Between cold smoke road, the second water-cooled flue, first water-cooled flue is connected to the firehole smoke exhaust pipe, second water-cooled flue
It is connected to the air cooler；
The flue gas memotron is equipped with air ports, and the air ports are connected to atmosphere.
The invention has the advantages that it on roof cover by being equipped with storage cigarette blower, flue gas memotron, flue gas memotron
By-passing valve is connected between the in line mouth of roof cover, then when electric furnace generates low discharge flue gas, directly by the in line of roof cover
Mouth is expelled to bag filter and is dusted processing；When electric furnace generates big flow flue gas, part of smoke is by the straight of roof cover
Row's mouth is expelled to bag filter and is dusted, and another part is discharged by by-pass port, and is sent into flue gas storage by storage cigarette blower
It is stored in pipe, when flue gas flow is lower, by-passing valve is opened, by the in line mouth of the flue gas stored in flue gas memotron and roof cover
After the flue gas mixing of discharge, it is dusted together into bag filter, smoke stack emission is sent by dedusting fan after up to standard, therefore
By adding storage cigarette blower, by-passing valve, flue gas memotron, it can be achieved that the flue gas that shunting roof cover traps, greatly reduces into cloth
The exhaust gas volumn of bag dust collector, dedusting fan makes bag filter filter area and volume reduction, dedusting fan flow and uses electric work
Rate reduces, to reduce the volume scale of dust pelletizing system and cleaner, may make dust pelletizing system under low discharge, low energy consumption
Operation, has saved investment and operating cost, has improved economic benefit and social benefit.
Detailed description of the invention
Fig. 1 is flow diagram of the invention.
Specific embodiment
As shown in Figure 1, the present invention includes electric furnace 1, firehole smoke exhaust pipe 2, the first water-cooled flue 3-1, the second water-cooled flue 3-
2, combustion settling chamber 4, air cooler 5, booster fan 6, roof cover 7, storage cigarette blower 8, by-passing valve 9, flue gas memotron 10, safety valve
11, roof cover 7 is arranged right above electric furnace 1 for bag filter 12, dedusting fan 13, chimney 14, and there are certain with electric furnace 1
Vertical range；The in line mouth 15 of roof cover 7 passes through pipeline sequential connection bag filter 12, dedusting after connecting with booster fan 6
Safety valve 11 is arranged in blower 13, chimney 14 between roof cover 7 and bag filter 12, roof cover 7 is equipped with by-pass port 16, other
Port 16 is connected after storing up cigarette blower 8 with flue gas memotron 10, and by-passing valve 9 is connected between flue gas memotron 10, in line mouth 15.
Specifically, firehole smoke exhaust pipe 2 is made of steel pipe, and the input end of firehole smoke exhaust pipe 2 connect with the bell of electric furnace 1, goes out
The connection opposite with the first water-cooled flue 3-1 of mouth end；
Water-cooled flue is also to be made of steel pipe, and flue gas is passed through in water-cooled flue, and flue gas can be cooled down indirectly in flue, water cooling
Flue is divided into the input end and firehole smoke exhaust pipe 2 of the first water-cooled flue 3-1, the second water-cooled flue 3-2, the first water-cooled flue 3-1
The import of opposite connection, outlet end and combustion settling chamber 4 connects, input end and the combustion settling chamber 4 of the second water-cooled flue 3-2
The import of outlet connection, outlet end and air cooler 5 connects；
Combustion settling chamber 4 is cuboid or cylindrical structure, and flue gas can be available with full combustion, coarse granule flue dust inside it
Sedimentation；
Air cooler 5 mainly cools down the flue gas being passed through；
Booster fan 6 be increase pressure for the flowing of smoke discharging in electric furnace 1, and after being arranged in air cooler 5, bag filter 12
Before, 6 input end of booster fan passes through the in line mouth of pipeline and roof cover 7 by pipeline and the outlet of air cooler 5 connection, outlet end
15, the outlet of by-passing valve 9, the outlet of safety valve 11, the import of bag filter 12 are connected；
Roof cover 7 is in frustum structure, and main function is trapping 1 secondary flue gas of electric furnace, and roof cover 7 is arranged in the factory of 1 top of electric furnace
On house top, cover mouth is downward, and the by-pass port 16 of roof cover 7 is connect by pipeline with storage 8 input end of cigarette blower；
Storing up cigarette blower 8 is to provide power for flow of flue gas；Store up cigarette blower 8 outlet end by pipeline respectively with flue gas memotron 10
Smoke entrance, by-passing valve 9 import connection；
By-passing valve 9 can be according to the peak-to-valley value opening/shutting valve of flue gas；
Flue gas memotron 10 is the equipment for storing flue gas, and flue gas memotron 10 is equipped with smoke entrance 17, air ports 18,
Air ports 18 are communicated with the atmosphere；
Safety valve 11 can control air to enter or stop entering dust pelletizing system, guarantee that cloth bag removes according to flue-gas temperature opening/shutting valve
Dirt device 12 is run at a set temperature, and the import 19 of safety valve 11 is communicated with the atmosphere；
Bag filter 12 is body structure, is internally provided with filter bag, can be dusted to flue gas.Bag filter 12 is arranged
After safety valve 11, before dedusting fan 13, the import of bag filter 12 is set to its underpart, outlet and is arranged on
Portion；
Dedusting fan 13 is to provide power for the flowing of entire dust pelletizing system flue gas；Dedusting fan 13 is arranged in bag filter 12
Between chimney 14, import and export is connected with 12 upper outlet of bag filter, the lower inlet of chimney 14 respectively by pipeline
It connects；
Chimney 14 is cylindrical structure, and chimney 14 is arranged in after dedusting fan 13, and lower inlet passes through pipeline and dedusting fan
13 outlet connections, top exhaust outlet are connected to atmosphere.
Workflow of the invention is as follows: the flue gas that electric furnace 1 is generated in charging, tapping flows to roof cover 7 from bottom to top
And trapped by roof cover 7, the flue gas after trapping is divided into two parts, and part of smoke is discharged by the in line mouth 15 of roof cover 7, is led to
Piping enters bag filter 12 and is filtered, and is sent into chimney 14 by dedusting fan 13 after up to standard and discharges；Another part flue gas
It is discharged by the by-pass port 16 of roof cover 7, is then sent into flue gas memotron 10 and is stored by storage cigarette blower 8, and flue gas memotron 10
Interior air can be discharged by air ports 18, and by-passing valve 9 at this time is to close；
Then the flue gas that electric furnace 1 is generated when oxygen blast is smelted is discharged by firehole smoke exhaust pipe 2, subsequently enters the first water-cooled flue
3-1, combustion settling chamber 4, the second water-cooled flue 3-2, flue gas carries out full combustion in combustion settling chamber 4 and coarse granule flue dust obtains
After sedimentation, carries out indirectly cooling with cooling water in the second water-cooled flue 3-2 and temperature is reduced, flue gas passes through pipeline later
It is further cooling into air cooler 5, at this point, closing storage cigarette blower 8, by-passing valve 9 is opened, the flue gas in flue gas memotron 10 is taken out
Out, while in flue gas memotron 10 it can be passed through air by air ports 18, to fill the space left after flue gas discharge, then
The flue gas being discharged from flue gas memotron 10, is mixed by pipeline with the secondary flue gas that the in line mouth 15 of roof cover 7 is discharged, cooling
A flue gas afterwards is mixed by booster fan 6 with mixed flue gas again, then enters bag-type dust by pipeline
Device 12 is filtered, and is sent into chimney 14 by dedusting fan 13 after up to standard and is discharged, when the flue-gas temperature for entering bag filter 12 is super
When crossing setting value, safety valve 11 open, air by safety valve 11 enter bag filter 12 before pipeline, mixed with flue gas and
Reduce flue-gas temperature；When enter bag filter 12 flue-gas temperature be lower than setting value when, safety valve 11 close, block air into
Enter dust pelletizing system.
Then the present invention in traditional electric furnace flue gas dust pelletizing system by adding storage cigarette blower 8, by-passing valve 9, flue gas memotron
10, it can be achieved that shunt the flue gas that roof cover 7 traps, i.e., peak load shifting, shunting peak value flue gas greatly reduce into bag filter
12, the exhaust gas volumn of dedusting fan 13 reduces bag filter filter area and volume, dedusting fan flow-reduction, and in electricity
Aspect can be consumed, although being additionally arranged equipment, due to dedusting fan flow-reduction, the electric energy of dedusting fan reduction is far longer than
The electric energy of cigarette blower consumption is stored up, the volume or length of the other equipment of dust pelletizing system also correspondingly reduce, the use of electric energy
Just accordingly reduce, to not only reduce the volume scale of dust pelletizing system and cleaner, and may make dust pelletizing system low
It is run under flow, low energy consumption, has saved investment and operating cost, improve economic benefit and social benefit.
In figure, arrow direction is flow of flue gas direction.
Claims (3)
1. the electric furnace flue gas dust-extraction unit that one kind can store flue gas comprising electric furnace, firehole smoke exhaust pipe, the water cooling cigarette of sequential connection
Road, combustion settling chamber, air cooler, booster fan, are provided with roof cover above the electric furnace, and the in line mouth of the roof cover with
Sequential connection bag filter, dedusting fan, chimney after the booster fan connection, the roof cover and the bag filter
Between be equipped with safety valve, which is characterized in that it further includes storage cigarette blower, by-passing valve, flue gas memotron, and the roof cover is equipped with
By-pass port, the by-pass port are connected after the storage cigarette blower with the flue gas memotron, and the by-passing valve is connected to the cigarette
Between gas memotron, in line mouth.
2. the electric furnace flue gas dust-extraction unit that one kind according to claim 1 can store flue gas, it is characterised in that: the water cooling
Flue is divided into the first water-cooled flue, the second water-cooled flue, and the combustion settling chamber is connected to first water-cooled flue, the second water
Between cold smoke road, first water-cooled flue is connected to the firehole smoke exhaust pipe, second water-cooled flue and the air cooler
Connection.
3. the electric furnace flue gas dust-extraction unit that one kind according to claim 1 can store flue gas, it is characterised in that: the flue gas
Memotron is equipped with air ports, and the air ports are connected to atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810995403.2A CN109163572A (en) | 2018-08-29 | 2018-08-29 | A kind of electric furnace flue gas dust-extraction unit storing flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810995403.2A CN109163572A (en) | 2018-08-29 | 2018-08-29 | A kind of electric furnace flue gas dust-extraction unit storing flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109163572A true CN109163572A (en) | 2019-01-08 |
Family
ID=64893406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810995403.2A Withdrawn CN109163572A (en) | 2018-08-29 | 2018-08-29 | A kind of electric furnace flue gas dust-extraction unit storing flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109163572A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556417A (en) * | 2020-12-09 | 2021-03-26 | 张家港宏昌钢板有限公司 | Electric furnace smelting energy-saving equipment and use method thereof |
| CN112915679A (en) * | 2021-01-22 | 2021-06-08 | 柯浩为 | Shunting preprocessing device suitable for industrial electric stove flue gas |
Citations (6)
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|---|---|---|---|---|
| CN102052856A (en) * | 2011-01-31 | 2011-05-11 | 无锡三达环保科技有限公司 | Dust collecting and waste heat utilizing system for argon oxygen decarburization furnace |
| CN102506589A (en) * | 2011-10-14 | 2012-06-20 | 尹华勤 | Electric furnace smoke dedusting process capable of realizing refluxing of part of smoke |
| CN203657515U (en) * | 2013-12-23 | 2014-06-18 | 科林环保装备股份有限公司 | Roof flue gas retention and dust collection hood |
| CN206177055U (en) * | 2016-11-14 | 2017-05-17 | 无锡东雄重型电炉有限公司 | Electric stove high temperature smoke and dust utilizes and dust collector |
| CN206540426U (en) * | 2017-02-28 | 2017-10-03 | 无锡东雄重型电炉有限公司 | High-temperature smoke hot-cast socket and dedusting taste removal system |
| CN208920883U (en) * | 2018-08-29 | 2019-05-31 | 无锡雪浪环境科技股份有限公司 | The electric furnace flue gas dust-extraction unit of flue gas can be stored |
-
2018
- 2018-08-29 CN CN201810995403.2A patent/CN109163572A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052856A (en) * | 2011-01-31 | 2011-05-11 | 无锡三达环保科技有限公司 | Dust collecting and waste heat utilizing system for argon oxygen decarburization furnace |
| CN102506589A (en) * | 2011-10-14 | 2012-06-20 | 尹华勤 | Electric furnace smoke dedusting process capable of realizing refluxing of part of smoke |
| CN203657515U (en) * | 2013-12-23 | 2014-06-18 | 科林环保装备股份有限公司 | Roof flue gas retention and dust collection hood |
| CN206177055U (en) * | 2016-11-14 | 2017-05-17 | 无锡东雄重型电炉有限公司 | Electric stove high temperature smoke and dust utilizes and dust collector |
| CN206540426U (en) * | 2017-02-28 | 2017-10-03 | 无锡东雄重型电炉有限公司 | High-temperature smoke hot-cast socket and dedusting taste removal system |
| CN208920883U (en) * | 2018-08-29 | 2019-05-31 | 无锡雪浪环境科技股份有限公司 | The electric furnace flue gas dust-extraction unit of flue gas can be stored |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556417A (en) * | 2020-12-09 | 2021-03-26 | 张家港宏昌钢板有限公司 | Electric furnace smelting energy-saving equipment and use method thereof |
| CN112915679A (en) * | 2021-01-22 | 2021-06-08 | 柯浩为 | Shunting preprocessing device suitable for industrial electric stove flue gas |
| CN112915679B (en) * | 2021-01-22 | 2022-12-23 | 湖南省楚雄环保科技有限公司 | Shunting preprocessing device suitable for industrial electric stove flue gas |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 214000 no.2020 Lihu Avenue, Binhu District, Wuxi City, Jiangsu Province Applicant after: WUXI XUELANG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 214128, Wuxi, Jiangsu province Binhu District Taihu Street double new economic Park Applicant before: WUXI XUELANG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190108 |