CN208920883U - The electric furnace flue gas dust-extraction unit of flue gas can be stored - Google Patents
The electric furnace flue gas dust-extraction unit of flue gas can be stored Download PDFInfo
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- CN208920883U CN208920883U CN201821405188.8U CN201821405188U CN208920883U CN 208920883 U CN208920883 U CN 208920883U CN 201821405188 U CN201821405188 U CN 201821405188U CN 208920883 U CN208920883 U CN 208920883U
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- flue gas
- electric furnace
- flue
- roof cover
- water
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model provides the electric furnace flue gas dust-extraction unit that can store flue gas, not only can effectively carry out fume treatment, and can reduce equipment volume, to reduce material utilization amount, reduces 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 utility model relates to technical field of energy saving and environmental protection, can specially store the electric furnace flue gas dust-extraction unit of 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, the problem of improving investment cost and operation energy consumption, the utility model provides the electric furnace flue gas dust-extraction unit that 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 described
Between one water-cooled flue, the second water-cooled flue, first water-cooled flue is connected to the firehole smoke exhaust pipe, second water cooling
Flue is connected to the air cooler；
The flue gas memotron is equipped with air ports, and the air ports are connected to atmosphere.
The utility model has the beneficial effects that it on roof cover by being equipped with storage cigarette blower, flue gas memotron, flue gas storage
It deposits and is connected with by-passing valve between pipe and the in line mouth of roof cover, then when electric furnace generates low discharge flue gas, directly by roof cover
In line mouth is expelled to bag filter and is dusted processing；When electric furnace generates big flow flue gas, part of smoke is by roof cover
In line mouth be expelled to bag filter and be dusted, another part is discharged by by-pass port, and is sent into flue gas by storage cigarette blower
It is stored in memotron, when flue gas flow is lower, opens by-passing valve, by the straight of the flue gas stored in flue gas memotron and roof cover
After the flue gas mixing for arranging mouth discharge, it is dusted together into bag filter, smoke stack emission is sent by dedusting fan after up to standard,
Therefore by add storage cigarette blower, by-passing valve, flue gas memotron, it can be achieved that shunt roof cover trapping flue gas, greatly reduce into
The exhaust gas volumn for entering bag filter, dedusting fan makes bag filter filter area and volume reduction, dedusting fan flow and use
Electrical power reduces, to reduce the volume scale of dust pelletizing system and cleaner, may make dust pelletizing system in low discharge, low energy
The lower operation of consumption, has saved investment and operating cost, has improved economic benefit and social benefit.
Detailed description of the invention
Fig. 1 is the flow diagram of the utility model.
Specific embodiment
As shown in Figure 1, the utility model includes electric furnace 1, firehole smoke exhaust pipe 2, the first water-cooled flue 3-1, the second water cooling cigarette
Road 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, peace
Roof cover 7 is arranged right above electric furnace 1 for full valve 11, bag filter 12, dedusting fan 13, chimney 14, and there are one with electric furnace 1
Fixed vertical range；The in line mouth 15 of roof cover 7 connect with booster fan 6 after by pipeline sequential connection bag filter 12,
Dedusting fan 13, chimney 14, are arranged safety valve 11 between roof cover 7 and bag filter 12, roof cover 7 is equipped with by-pass port
16, by-pass port 16 is connected after storing up cigarette blower 8 with flue gas memotron 10, and by-passing valve 9 is connected to flue gas memotron 10, in line mouth 15
Between.
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-cooled flue is divided into the first water-cooled flue 3-1, the input end of the second water-cooled flue 3-2, the first water-cooled flue 3-1 and firehole and discharges fume
The import of the opposite connection of pipe 2, outlet end and combustion settling chamber 4 connects, the input end and combustion settling chamber of the second water-cooled flue 3-2
4 import for exporting connection, outlet end and air cooler 5 connects；
Combustion settling chamber 4 is cuboid or cylindrical structure, and flue gas can with full combustion, coarse granule flue dust inside it
It is settled；
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-type dust
Before device 12,6 input end of booster fan passes through the straight of pipeline and roof cover 7 by pipeline and the outlet of air cooler 5 connection, outlet end
Row's mouth 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 1 top of electric furnace
Factory roof on, cover mouth is downward, and the by-pass port 16 of roof cover 7 is connect by pipeline with 8 input end of cigarette blower is stored up；
Storing up cigarette blower 8 is to provide power for flow of flue gas；The outlet end for storing up cigarette blower 8 is stored with flue gas respectively by pipeline
The import connection of the smoke entrance, by-passing valve 9 of pipe 10；
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 passes in and out
Mouth 18, air ports 18 are communicated with the atmosphere；
Safety valve 11 can control air to enter or stop entering dust pelletizing system, guarantee cloth according to flue-gas temperature opening/shutting valve
Bag dust collector 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
After being arranged in safety valve 11, before dedusting fan 13, the import of bag filter 12 is set to its underpart, outlet and is set to it
Top；
Dedusting fan 13 is to provide power for the flowing of entire dust pelletizing system flue gas；Dedusting fan 13 is arranged in bag-type dust
Between device 12 and chimney 14, import and export by pipeline respectively with 12 upper outlet of bag filter, the lower inlet of chimney 14
Connection；
Chimney 14 is cylindrical structure, and chimney 14 is arranged in after dedusting fan 13, and lower inlet passes through pipeline and dedusting
The outlet of blower 13 connection, top exhaust outlet are connected to atmosphere.
The workflow of the utility model is as follows: the flue gas that electric furnace 1 is generated in charging, tapping flows to room from bottom to top
Overhead guard 7 is simultaneously trapped by roof cover 7, and the flue gas after trapping is divided into two parts, part of smoke by roof cover 7 15 row of in line mouth
Out, enter bag filter 12 by pipeline to be filtered, chimney 14 is sent by dedusting fan 13 after up to standard and is discharged；Another part
Flue gas 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 stores
Air in pipe 10 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 cooling
Flue 3-1, combustion settling chamber 4, the second water-cooled flue 3-2, flue gas carry out full combustion and coarse granule flue dust in combustion settling chamber 4
After obtaining sedimentation, carries out indirectly cooling with cooling water in the second water-cooled flue 3-2 and temperature is reduced, flue gas passes through later
It is further cooling that pipeline enters air cooler 5, at this point, closing storage cigarette blower 8, opens by-passing valve 9, the flue gas in flue gas memotron 10
It is extracted, while air can be passed through by air ports 18 in flue gas memotron 10, to fill the sky left after flue gas discharge
Between, then the flue gas being discharged from flue gas memotron 10 is mixed by the secondary flue gas that pipeline is discharged with the in line mouth 15 of roof cover 7
It closes, a flue gas after cooling is mixed by booster fan 6 with mixed flue gas again, then enters cloth by pipeline
Bag dust collector 12 is filtered, and is sent into chimney 14 by dedusting fan 13 after up to standard and is discharged, when the flue gas for entering bag filter 12
When temperature is more than setting value, safety valve 11 is opened, and air enters the pipeline before bag filter 12 by safety valve 11, with flue gas
It mixes and reduces flue-gas temperature；When the flue-gas temperature for entering bag filter 12 is lower than setting value, safety valve 11 is closed, and is blocked
Air enters dust pelletizing system.
Then the utility model is stored up by adding storage cigarette blower 8, by-passing valve 9, flue gas in traditional electric furnace flue gas dust pelletizing system
Pipe 10 is deposited, it can be achieved that shunting the flue gas that roof cover 7 traps, i.e., peak load shifting, shunting peak value flue gas greatly reduce and remove into cloth bag
The exhaust gas volumn of dirt device 12, dedusting fan 13 reduces bag filter filter area and volume, dedusting fan flow-reduction, and
In terms of power consumption, although being additionally arranged equipment, due to dedusting fan flow-reduction, the electric energy of dedusting fan reduction is much
Greater than the electric energy of storage cigarette blower consumption, the volume or length of the other equipment of dust pelletizing system are also correspondingly reduced, and electric energy makes
With also just accordingly reducing, to not only reduce the volume scale of dust pelletizing system and cleaner, and dust pelletizing system may make
It is run under low discharge, 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 of flue gas can be stored comprising the electric furnace of sequential connection, firehole smoke exhaust pipe, water-cooled flue,
Combustion settling chamber, air cooler, booster fan, the electric furnace top are provided with roof cover, and the in line mouth of the roof cover and institute
State sequential connection bag filter, dedusting fan, chimney after booster fan connection, the roof cover and the bag filter it
Between be equipped with safety valve, which is characterized in that its further include storage cigarette blower, by-passing valve, flue gas memotron, the roof cover be equipped with side
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 flue gas
Between memotron, in line mouth.
2. the electric furnace flue gas dust-extraction unit according to claim 1 for storing flue gas, it is characterised in that: the water-cooled flue
It is divided into the first water-cooled flue, the second water-cooled flue, the combustion settling chamber is connected to first water-cooled flue, the second water cooling cigarette
Between road, first water-cooled flue is connected to the firehole smoke exhaust pipe, and second water-cooled flue is connected to the air cooler.
3. the electric furnace flue gas dust-extraction unit according to claim 1 for storing flue gas, it is characterised in that: the flue gas storage
Pipe is equipped with air ports, and the air ports are connected to atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821405188.8U CN208920883U (en) | 2018-08-29 | 2018-08-29 | The electric furnace flue gas dust-extraction unit of flue gas can be stored |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821405188.8U CN208920883U (en) | 2018-08-29 | 2018-08-29 | The electric furnace flue gas dust-extraction unit of flue gas can be stored |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208920883U true CN208920883U (en) | 2019-05-31 |
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ID=66704665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821405188.8U Active CN208920883U (en) | 2018-08-29 | 2018-08-29 | The electric furnace flue gas dust-extraction unit of flue gas can be stored |
Country Status (1)
| Country | Link |
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| CN (1) | CN208920883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163572A (en) * | 2018-08-29 | 2019-01-08 | 无锡雪浪环境科技股份有限公司 | A kind of electric furnace flue gas dust-extraction unit storing flue gas |
-
2018
- 2018-08-29 CN CN201821405188.8U patent/CN208920883U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163572A (en) * | 2018-08-29 | 2019-01-08 | 无锡雪浪环境科技股份有限公司 | A kind of electric furnace flue gas dust-extraction unit storing flue gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 214000 no.2020 Lihu Avenue, Binhu District, Wuxi City, Jiangsu Province Patentee after: WUXI XUELANG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 214128 Shuangxin economic Park, Taihu street, Binhu District, Wuxi City, Jiangsu Province Patentee before: WUXI XUELANG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |