CN209341854U - A kind of cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system - Google Patents
A kind of cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system Download PDFInfo
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- CN209341854U CN209341854U CN201822069547.3U CN201822069547U CN209341854U CN 209341854 U CN209341854 U CN 209341854U CN 201822069547 U CN201822069547 U CN 201822069547U CN 209341854 U CN209341854 U CN 209341854U
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- fixedly connected
- electric furnace
- flue gas
- connecting pipe
- efficiente callback
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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
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Abstract
The utility model provides a kind of cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system, including electric furnace；The electric furnace furnace roof is equipped with the 4th hole；Four hole watercooling elbows are fixedly connected on the right side of 4th hole；The four holes watercooling elbow side end is connect with water cooling sliding sleeve；The water cooling sliding sleeve is located on water-cooled flue；End is fixedly connected with adiabatic combustion expansion chamber on the downside of the water-cooled flue；Adiabatic combustion expansion chamber one end connection insulation flue；The insulation flue side is fixedly connected with waste heat boiler；The first connecting pipe is fixedly connected at the waste heat boiler upper outlet；The first connecting pipe side end is fixedly connected with sack cleaner；The second connecting pipe is fixedly connected at the sack cleaner upper outlet；The second connecting pipe side end is fixedly connected with air-introduced machine；The air-introduced machine connects chimney by third connecting pipe.The utility model is designed reasonably, structure novel, waste heat recovery efficiency is high, has stronger practicability.
Description
Technical field
The utility model relates to waste heat recovery apparatus, the cigarette wind dress of specifically a kind of high efficiente callback electric furnace flue gas residual heat system
It sets.
Background technique
A large amount of high-temperature dust-containing flue gas can be generated in EAF Steelmaking Process, obvious heat of smoke accounts for the 10% of electric furnace steel making total energy consumption
More than.The current country is mainly water-cooling pattern to the flue gas type of cooling, that is, smelts a generated flue gas and take out from its 4th hole
Out, it after water cooled elbow, water cooling sliding sleeve, water-cooled flue, combustion settling chamber are cooling, then drops to about through air cooler or spray cooling tower
It 350 DEG C, is finally mixed with the secondary exhaust gas for carrying out arrogant enclosed hood and removing roof dust cover temperature is 60 DEG C, mixed exhaust gas temperature
Degree is lower than 130 DEG C, purifies into deduster, and be discharged into atmosphere through blower.Which realizes the purpose of flue gas cool-down dedusting, disadvantage
It is: on the one hand consumes a large amount of electric energy and water, on the other hand the heat of a large amount of high-temperature flue gas is not recycled.
For the above status and problem, a kind of system of high efficiente callback electric furnace flue gas waste heat has captured electric furnace flue gas waste heat
The problems such as long-standing interval production, high temperature, explosive are recycled, which takes out high-temperature flue gas from electric furnace furnace roof (the 4th hole)
Out, water cooled elbow, water cooling sliding sleeve, water-cooled flue, in adiabatic combustion expansion chamber full combustion, then flue gas continues flow through insulation
Flue enters waste heat boiler, by heat exchange after smoke temperature be down to about 180 DEG C, by pipeline send to dust pelletizing system purify it is up to standard after be discharged into
Atmosphere, the consumption of water can be reduced by the system, and realizes heat recovery, achieve the effect that energy efficiency, this waste heat return
Receipts system mainly includes air and gas system.
Summary of the invention
The purpose of this utility model is to provide a kind of cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system, to solve
The problems mentioned above in the background art.
To achieve the above object, the utility model provides the following technical solutions:
A kind of cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system, including electric furnace；The electric furnace furnace roof is equipped with the 4th
Hole；Four hole watercooling elbows are fixedly connected on the right side of 4th hole；The four holes watercooling elbow side end and water cooling sliding sleeve connect
It connects；The water cooling sliding sleeve is located on water-cooled flue；End is fixedly connected with adiabatic combustion expansion chamber on the downside of the water-cooled flue；Institute
It states adiabatic combustion expansion chamber one end and is fixedly connected with insulation flue；The insulation flue side is fixedly connected with waste heat boiler；Institute
It states and is fixedly connected with the first connecting pipe at waste heat boiler upper outlet；The first connecting pipe side end is fixedly connected with
Sack cleaner；The second connecting pipe is fixedly connected at the sack cleaner upper outlet；Second connecting pipe one
Side end is fixedly connected with air-introduced machine；The air-introduced machine connects chimney by third connecting pipe.
As a further solution of the present invention: the adiabatic combustion expansion chamber uses refractory brick, insulating brick and fire resisting
Castable etc. is built, and expansion chamber surrounding furnace wall uses four-layer structure, respectively flame retardant coating, insulating layer, heat insulation layer and mixed
Xtah Crude Clay structure.Furnace roof uses flat furred ceiling, and expansion chamber is provided with gate convenient for deashing when blowing out.
As a further solution of the present invention: the waste heat boiler is vertical steel pipe lower wind inlet type boiler, independent steel
Structure stand, using natural circulation mode, by I grades of evaporators, II grades of evaporators, drum, storage heater, economizer, feed pump and
Oxygen-eliminating device constitutes entire boiler circuit.
As a further solution of the present invention: the oxygen-eliminating device is connected by feed pump with economizer entrance.
As a further solution of the present invention: the economizer exit is connected with drum entrance；The drum arrangement
At the top of waste heat boiler, saturated vapor outlet is connected with storage heater, saturation water out and II grades of evaporator inlets and I grades of steamings
Device entrance is sent out to be connected；The outlet of the II grades of evaporator outlet and I grades of evaporators accesses drum by tedge.
As a further solution of the present invention: its bottom of the waste heat boiler is provided with sedimentation ash bucket.
As a further solution of the present invention: the waste heat boiler ontology is equipped with shock-wave ash-clearing device, to clear
Except the dust stratification of heating surface；The shock-wave ash-clearing device is made of fuel cartridge, conveying distribution duct etc..
Compared with prior art, the utility model has the beneficial effects that
The utility model is built by setting adiabatic combustion expansion chamber using refractory brick, insulating brick and castable refractory etc.
At expansion chamber surrounding furnace wall uses four-layer structure, respectively flame retardant coating, insulating layer, heat insulation layer and concrete structure.Furnace roof is adopted
With flat furred ceiling, expansion chamber is provided with gate convenient for deashing when blowing out, high-temperature flue gas full combustion in adiabatic combustion expansion chamber, effectively
Ground overcomes electric furnace flue gas fluctuation and causes steam fluctuation frequent and be difficult to the difficulty of industrialized utilization, makes full use of electric furnace flue gas
Residual heat resources reduce production energy consumption, energy saving；Flue gas enters from lower portion thereof, tail portion discharge, and its bottom is provided with sedimentation
Section is additionally provided with shock-wave ash-clearing device, structure novel, and design rationally, is fully cooled flue gas, and exhaust gas temperature is low, and recovery efficiency is high；
The utility model is designed reasonably, structure novel, waste heat recovery efficiency is high, has stronger practicability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the schematic diagram inside the utility model waste heat boiler.
In figure: 1- electric furnace, the 4th hole 2-, tetra- hole watercooling elbow of 3-, 4- water cooling sliding sleeve, 5- water-cooled flue, 6- insulation sedimentation
Room, 7- are insulated flue, 8- waste heat boiler, the first connecting pipe of 9-, 10- sack cleaner, the second connecting pipe of 11-, 12- air inducing
Machine, 13- third connecting pipe, 14- chimney, 15- oxygen-eliminating device, 16- feed pump, 17- economizer, 18- drum, 19-I grades of evaporations
Device, 20-II grades of evaporators, 21- storage heater.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
A kind of cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system referring to FIG. 1-2, including electric furnace 1；The electric furnace
1 furnace roof is equipped with the 4th hole 2；The high-temperature flue gas in electric furnace 1 is extracted in 4th hole 2 out, and right side is fixedly connected with four Kong Shuileng
Elbow 3；Four hole watercooling elbow, 3 side end is connect with water cooling sliding sleeve 4；The water cooling sliding sleeve 4 is located on water-cooled flue 5；
The 5 downside end of water-cooled flue is fixedly connected with insulation expansion chamber 6；The adiabatic combustion expansion chamber is using refractory brick, heat preservation
Brick and castable refractory etc. are built, and expansion chamber surrounding furnace wall uses four-layer structure, respectively flame retardant coating, insulating layer, insulation
Layer and concrete structure.Furnace roof uses flat furred ceiling, high-temperature flue gas full combustion in adiabatic combustion expansion chamber 5；Adiabatic combustion
6 one end of expansion chamber is fixedly connected with insulation flue 7；7 side of insulation flue is fixedly connected with waste heat boiler 8；The waste heat
Boiler 8 is vertical steel pipe waste heat boiler, is lower wind inlet type boiler, and independent steel structure support is arranged in outside workshop, using following naturally
Ring mode is made of entire carbonated drink system I grades of evaporators, II grades of evaporators, drum, storage heater, economizer, feed pump and oxygen-eliminating device
System；The oxygen-eliminating device 15 is connected by feed pump 16 with 17 entrance of economizer；The outlet of economizer 17 is connected with 18 entrance of drum；Institute
It states drum 18 and is arranged in 8 top of waste heat boiler, saturated vapor outlet is connected with storage heater 21, saturation water out and II grades of steamings
It sends out 20 entrance of device and I grades of 19 entrances of evaporator is connected；The outlet of II grades of evaporator 20 and the outlet of I grades of evaporators 19 pass through upper
Riser accesses drum 18.The first connecting pipe 9 is fixedly connected at 8 upper outlet of waste heat boiler；First connecting pipe 9 one
Side end is fixedly connected with sack cleaner 10；The second connecting pipe is fixedly connected at 10 upper outlet of sack cleaner
11；Second connecting pipe, 11 side end is fixedly connected with air-introduced machine 12；The air-introduced machine 12 passes through third connecting pipe
13 connection chimneys 14.
The working principle of the utility model is: high-temperature flue gas is extracted out from the 4th hole 2 of 1 furnace roof of electric furnace, Jing Sikong watercooling elbow
3, water cooling sliding sleeve 4, water-cooled flue 5 enter in adiabatic combustion expansion chamber 6, and high-temperature flue gas is abundant in adiabatic combustion expansion chamber 6
Burning, then workshop is drawn by insulation flue 7, it is connect with the waste heat boiler 8 being arranged in outside workshop, in waste heat boiler 8, flue gas
By being fully cooled, temperature is down to 180 DEG C hereinafter, being sent into 10 dedusting of sack cleaner, the exhaust gas up to standard after dedusting, by drawing
Blower 13 and chimney 14 discharge.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (7)
1. a kind of cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system, including electric furnace (1)；It is characterized in that, the electric furnace
(1) furnace roof is equipped with the 4th hole (2)；Four hole watercooling elbows (3) are fixedly connected on the right side of 4th hole (2)；Four Kong Shuileng
Elbow (3) side end is connect with water cooling sliding sleeve (4)；The water cooling sliding sleeve (4) is located on water-cooled flue (5)；The water cooling cigarette
End is fixedly connected with adiabatic combustion expansion chamber (6) on the downside of road (5)；Described adiabatic combustion expansion chamber (6) one end is fixedly connected with
It is insulated flue (7)；Insulation flue (7) side is fixedly connected with waste heat boiler (8)；Waste heat boiler (8) upper outlet
Place is fixedly connected with the first connecting pipe (9)；First connecting pipe (9) side end is fixedly connected with sack cleaner
(10)；The second connecting pipe (11) are fixedly connected at sack cleaner (10) upper outlet；Second connecting pipe
(11) side end is fixedly connected with air-introduced machine (12)；The air-introduced machine (12) connects chimney by third connecting pipe (13)
(14).
2. the cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system according to claim 1, which is characterized in that described exhausted
Hot combustion settling chamber (6) is built using refractory brick, insulating brick and castable refractory etc., and expansion chamber surrounding furnace wall uses four layers
Structure, respectively flame retardant coating, insulating layer, heat insulation layer and concrete structure；Furnace roof uses flat furred ceiling, and expansion chamber is provided with gate just
Deashing when blowing out.
3. the cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system according to claim 1, which is characterized in that described remaining
Heat boiler (8) is vertical steel pipe lower wind inlet type boiler, independent steel structure support, using natural circulation mode, by I grades of evaporators
(19), II grades of evaporators (20), drum (18), storage heater (21), economizer (17), feed pump (16) and oxygen-eliminating device (15) are constituted
Entire boiler circuit.
4. the cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system according to claim 3, which is characterized in that described to remove
Oxygen device (15) is connected by feed pump (16) with economizer (17) entrance.
5. the cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system according to claim 3, which is characterized in that the province
Coal device (17) outlet is connected with drum (18) entrance；The drum (18) is arranged at the top of waste heat boiler (8), and saturated vapor goes out
Mouth is connected with storage heater (21), and saturation water out is connected with II grades of evaporator (20) entrances and I grades of evaporator (19) entrances；Institute
It states II grades of evaporator (20) outlets and the outlet of I grades of evaporators (19) and drum (18) is accessed by tedge.
6. the cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system according to claim 1, which is characterized in that described remaining
Heat boiler (8) its bottom is provided with sedimentation ash bucket.
7. the cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system according to claim 1, which is characterized in that described remaining
Heat boiler (8) ontology is equipped with shock-wave ash-clearing device, to remove the dust stratification of heating surface；The shock-wave ash-clearing device is by combustion gas
The compositions such as tank, conveying distribution duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822069547.3U CN209341854U (en) | 2018-12-10 | 2018-12-10 | A kind of cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822069547.3U CN209341854U (en) | 2018-12-10 | 2018-12-10 | A kind of cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209341854U true CN209341854U (en) | 2019-09-03 |
Family
ID=67756484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822069547.3U Active CN209341854U (en) | 2018-12-10 | 2018-12-10 | A kind of cigarette wind apparatus of high efficiente callback electric furnace flue gas residual heat system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209341854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111364A (en) * | 2021-12-22 | 2022-03-01 | 四川都钢钢铁集团股份有限公司 | Electric stove smoke extraction dust pelletizing system |
-
2018
- 2018-12-10 CN CN201822069547.3U patent/CN209341854U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111364A (en) * | 2021-12-22 | 2022-03-01 | 四川都钢钢铁集团股份有限公司 | Electric stove smoke extraction dust pelletizing system |
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