CN209623391U - The full residual neat recovering system of electric furnace - Google Patents
The full residual neat recovering system of electric furnace Download PDFInfo
- Publication number
- CN209623391U CN209623391U CN201920289900.0U CN201920289900U CN209623391U CN 209623391 U CN209623391 U CN 209623391U CN 201920289900 U CN201920289900 U CN 201920289900U CN 209623391 U CN209623391 U CN 209623391U
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- Prior art keywords
- electric furnace
- water
- combustion chamber
- residual neat
- neat recovering
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 230000008016 vaporization Effects 0.000 claims abstract description 16
- 230000005855 radiation Effects 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims abstract description 7
- 238000012546 transfer Methods 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 230000000712 assembly Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
- 239000003085 diluting agent Substances 0.000 claims description 6
- 239000008400 supply water Substances 0.000 claims description 4
- 238000003032 molecular docking Methods 0.000 claims description 3
- 238000009834 vaporization Methods 0.000 claims 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 22
- 239000003546 flue gas Substances 0.000 abstract description 19
- 238000013461 design Methods 0.000 abstract description 8
- 239000002918 waste heat Substances 0.000 abstract description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a kind of full residual neat recovering systems of electric furnace, including radiation heat transfer boiler and heat convection boiler, the radiation heat transfer boiler includes electric furnace, the electric furnace passes through junction block assemblies and combustion chamber, the combustion chamber is connected to by Vaporizing cooling pipeline with the heat convection boiler, and the heat convection boiler is connect by cold wind flue with dust hood.The full residual neat recovering system structure design of the utility model electric furnace is simple, the cooling of system outlet flue-gas temperature effectively can be reached the waste heat maximally utilized in flue gas, and have the steam of utility value.
Description
Technical field
The utility model relates to complementary energy technical field of waste heat utilization more particularly to a kind of full residual neat recovering systems of electric furnace.
Background technique
Using a large amount of dust-laden high-temperature flue gas (about 1000~1400 degrees Celsius) can be generated in steel-making course of the electric arc furnace.In this way
High-temperature flue gas have to pass through cooling and dedusting after just can be carried out qualified discharge.
Electric arc furnaces flue gas ash removal generallys use bag filter, and high-temperature flue gas is needed by just can enter cloth after cooling
Bag dust collector, into no more than 130 degrees Celsius of inlet temperature of bag filter.Big portion as electric arc furnaces total input energy
Divide waste heat to be included in obvious heat of smoke, the damage that will lead to this part energy is cooled down using the water-cooled flue of traditional approach
It loses.And the power consumption for additionally serving as cooling water pump will also be calculated in smelting process cost.In addition to this, traditional water-cooling system is also
Closed loop water circulation system and secondary water-cooling system are needed, the energy is consumed.
Therefore, the full residual neat recovering system of electric furnace that how designing one kind can solve the above problems is that the present inventor concentrates on studies
Project.
Utility model content
The purpose of this utility model is to provide a kind of full residual neat recovering system of electric furnace, structure design is simple, can be effective
The cooling of system outlet flue-gas temperature is reached into the waste heat maximally utilized in flue gas, and has the steam of utility value.
To achieve the goals above, the utility model provides a kind of full residual neat recovering system of electric furnace, changes including radiation
Heat boiler and heat convection boiler, the radiation heat transfer boiler includes electric furnace, and the electric furnace passes through junction block assemblies and combustion chamber
Connection, the combustion chamber are connected to by Vaporizing cooling pipeline with the heat convection boiler, and the heat convection boiler passes through cold
Wind and smoke road is connect with dust hood.
Preferably, the junction block assemblies include the fixation elbow being set on the 4th hole of electric furnace and are set on combustion chamber
Rotatable mobile elbow, the mobile elbow is connected to combustion chamber inner cavity, and the mobile elbow can be with the fixation through rotation
Elbow docking communicates.
Preferably, the combustion chamber is cylindrical shape, and the inner cavity of the combustion chamber uses fin panel casing.
Preferably, the combustion chamber is connect with diluent air injected system and analyzer.
It preferably, further include drum and feed-tank, water is supplied to drum by water supply water pump and water pipe by the feed-tank,
Heat recirculated water with pressure is sent the water cooling to the Vaporizing cooling pipeline and combustion chamber by water pipe by the drum from drum
In wall.
Preferably, the heat recirculated water enters back into Vaporizing cooling pipeline and combustion chamber after first passing through header by water pump extraction
Water-cooling wall in.
Preferably, the heat recirculated water is vaporized in the Vaporizing cooling pipeline inner part, and steam water interface passes through tedge
Road is back to the drum, is then separated into steam and water, and the steam in the drum and in feed-tank drains into storage heater.
Preferably, the feed-tank inputs demineralized water by water inlet pipe, and the feed-tank passes through water pump and water pipe for desalination
Water is sent to multiple economizers of boiler.
Preferably, the heat convection boiler uses rectilinear heat convection boiler.
Preferably, multiple economizers are set to the tail portion of the heat convection boiler, and the economizer is located at multiple
The lower section of evaporator.
After adopting the above scheme, the full residual neat recovering system of the utility model electric furnace is changed by said structure design from radiation
Behind combustion chamber and Vaporizing cooling pipeline, temperature can be down to about the flue gas that the electric furnace of heat boiler comes out from 1200 degrees centigrades
600 degrees Celsius, then flue gas is further cooled to 150-180 degrees Celsius by heat convection boiler, structure design is simple, can
The cooling of system outlet flue-gas temperature is effectively reached into the waste heat maximally utilized in flue gas, and has the steaming of utility value
The steam that upper ton steel generates theoretically can be increased to 175KG from 150KG, and generate steam using this system by vapour
Mode reduces the discharge that carbon dioxide brought by steam is generated with conventional boiler, and the operating cost of this system is also than normal
Rule mode is low, extends the cycle of operation of cooling line, improves the economic benefit of enterprise.
Detailed description of the invention
Fig. 1 is the general arrangement schematic diagram of the full residual neat recovering system of the utility model electric furnace；
Fig. 2 is the schematic perspective view of the full residual neat recovering system of the utility model electric furnace；
Fig. 3 is the medium flow chart of the full residual neat recovering system of the utility model electric furnace.
Specific embodiment
The utility model is illustrated below according to attached drawing illustrated embodiment.This time disclosed embodiment can consider in institute
Having aspect is to illustrate, without limitation.The scope of the utility model is not illustrated to be limited by following implementation, only by right
Shown in the range of claim, and including having all changes in the same meaning and scope of the claims with scope of the claims
Shape.
The structure of the full residual neat recovering system of the utility model electric furnace is illustrated combined with specific embodiments below.
As shown in Figure 1 and Figure 2, the structure of the full residual neat recovering system of the utility model electric furnace includes radiation heat transfer boiler 1 and right
Heat exchange boiler 2 is flowed, radiation heat transfer boiler 1 includes electric furnace 3, and electric furnace 3 is connected to by junction block assemblies with combustion chamber 4, junction block group
Part includes the fixation elbow 5 being set on the 4th hole of electric furnace 3 and the rotatable mobile elbow 6 that is set on combustion chamber 4, and movement is curved
First 6 are connected to the inner cavity of combustion chamber 4, and mobile elbow 6 can be communicated through rotation with the fixed docking of elbow 5, and mobile elbow 6 uses resistance to height
Wet corrosion resistant high performance alloys seamless steel pipe, mobile elbow 6 are the connection design of pipe pipe, are welded between pipeline using air-tightness
Together, smooth surface can prevent least clinker to be sticked on tube wall.Combustion chamber 4 is cylindrical shape, the inner cavity of combustion chamber 4
Using fin panel casing.Combustion chamber 4 is connected to by Vaporizing cooling pipeline 7 with the entrance of heat convection boiler 2, heat convection boiler
2 use rectilinear heat convection boiler.Heat convection boiler 2 is connect by cold wind flue 8 with dust hood 9, and dust hood 9 is located at electricity
The bell upper end position of furnace 3.
Combustion chamber 4 is connect with diluent air injected system, and combustion chamber 4 is connect with analyzer, and flue gas passes through the 4th of electric furnace 3
Hole extracts, and carbon monoxide is contained in flue gas, is entered in combustion chamber 4 by diluent air injected system, can in flue gas
Carbon monoxide completely burned.It can control diluent air injected system to enter the air capacity in combustion chamber 4 by analyzer, and be arranged
The purpose of mobile elbow 6, and rationally control enter air capacity, the closing distance of mobile elbow 6 and fixed elbow 5 of about
50mm.In charging, this movement elbow 6 is revolving.The some clinkers and particle packing generated are in mobile 6 mouthfuls of elbow
Place will disappear when mobile elbow 6 is mobile.Diluent air injection rate on combustion chamber 4 will be according to evaporated cooling system end
Exhaust gas temperature or carbon dioxide in waste gas and carbon monoxide and oxygen content automatically adjust.
The tail portion of heat convection boiler 2 is equipped with multiple economizers 10, and multiple economizers 10 are located at multiple evaporators 11
Lower section.The channel of the vertical component of heat convection boiler 2 includes the cleaning device of a heating surface, by being located at the top of boiler
Shot-blasting machine cleans, to avoid the adhesion dust of pipe surface, can increase rate of heat exchange in this way, such exhaust gas is at 200 degree
To the outlet for leaving heat convection boiler 2 in the case where 280 degree.
As shown in connection with fig. 3, this system further includes drum 12 and feed-tank 13, and feed-tank 13 passes through water supply water pump 14 and water pipe
Water is supplied to drum 12, the present embodiment water supply water pump 14 uses two, and a use, another is spare.Drum 12 passes through water
Pipe send the heat recirculated water with pressure to Vaporizing cooling pipeline 7 and the water-cooling wall of combustion chamber 4 from drum 12, and heat recirculated water is logical
It crosses after the extraction of water pump 15 first passes through header and enters back into Vaporizing cooling pipeline 7 and the water-cooling wall of combustion chamber 4, the present embodiment water pump
15 use two, and a use, another is spare.Heat recirculated water is vaporized in 7 inner part of Vaporizing cooling pipeline, and steam water interface is logical
It crosses increase in pipeline 16 and is back to drum 12, be then separated into steam and water, the steam in drum 12 and in feed-tank 13 drains into storage
Steam is delivered to steam producing apparatus by hot device 17, storage heater 17.Feed-tank 13 inputs demineralized water, feed-tank 13 by water inlet pipe
Demineralized water is sent to multiple economizers 10 of heat convection boiler 2 by water pump 18 and water pipe, the present embodiment water pump 18 uses
Two, a use, one spare.The medium process design of this system reduces the use of the attached steam from drum 12
Amount, therefore the efficiency that heat convection boiler 2 generates steam can be increased.
The full residual neat recovering system of the utility model electric furnace is gone out by said structure design from the electric furnace 3 of radiation heat transfer boiler 1
For the flue gas come behind combustion chamber 4 and Vaporizing cooling pipeline 7, temperature can be down to about 600 degrees Celsius from 1200 degrees centigrades, then lead to
It crosses heat convection boiler 2 and flue gas is further cooled to 150-180 degrees Celsius, structure design is simple, can effectively go out system
Mouth flue-gas temperature cooling reaches the waste heat maximally utilized in flue gas, and has the steam of utility value, theoretically
The steam that upper ton steel generates can be increased to 175KG from 150KG, and the mode for using this system to generate steam reduces to pass
Boiler of uniting generates the discharge of carbon dioxide brought by steam, and the operating cost of this system is also lower than usual manner, extends
The cycle of operation of cooling line, improve the economic benefit of enterprise.
Those skilled in the art are considering specification and after practicing utility model disclosed herein, will readily occur to practical
Novel other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these
Variations, uses, or adaptations follow the general principle of the utility model and including it is undocumented in the art
Common knowledge or conventional techniques.The description and examples are only to be considered as illustrative, the true scope of the utility model and
Spirit is pointed out by claim.
It should be understood that the utility model is not limited to embodiment method, the structure being described above, and attached
Precision architecture shown in figure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model
Only it is limited by the accompanying claims.
Claims (10)
1. a kind of full residual neat recovering system of electric furnace, which is characterized in that including radiation heat transfer boiler and heat convection boiler, the spoke
Penetrating heat exchange boiler includes electric furnace, and for the electric furnace by junction block assemblies and combustion chamber, the combustion chamber passes through Vaporizing cooling
Pipeline is connected to the heat convection boiler, and the heat convection boiler is connect by cold wind flue with dust hood.
2. the full residual neat recovering system of electric furnace according to claim 1, which is characterized in that the junction block assemblies include setting
In the fixation elbow on the 4th hole of electric furnace and the rotatable mobile elbow being set on combustion chamber, the mobile elbow and combustion chamber
Inner cavity connection, the mobile elbow can be communicated through rotation with the fixed elbow docking.
3. the full residual neat recovering system of electric furnace according to claim 1, which is characterized in that the combustion chamber is cylindrical shape,
The inner cavity of the combustion chamber uses fin panel casing.
4. the full residual neat recovering system of electric furnace according to claim 1, which is characterized in that the combustion chamber and diluent air are infused
Enter system and analyzer connection.
5. the full residual neat recovering system of electric furnace according to claim 1, which is characterized in that further include drum and feed-tank, institute
It states feed-tank and water is supplied to by drum by water supply water pump and water pipe, the drum will have the heat recirculated water of pressure by water pipe
It send from drum to the Vaporizing cooling pipeline and the water-cooling wall of combustion chamber.
6. the full residual neat recovering system of electric furnace according to claim 5, which is characterized in that the heat recirculated water is taken out by water pump
It takes and is entered back into after first passing through header in the water-cooling wall of Vaporizing cooling pipeline and combustion chamber.
7. the full residual neat recovering system of electric furnace according to claim 5, which is characterized in that the heat recirculated water is in the vaporization
The vaporization of cooling pipe inner part, steam water interface are back to the drum by increase in pipeline, are then separated into steam and water, institute
It states the steam in drum and in feed-tank and drains into storage heater.
8. the full residual neat recovering system of electric furnace according to claim 5, which is characterized in that the feed-tank is defeated by water inlet pipe
Enter demineralized water, the feed-tank is sent demineralized water to multiple economizers of boiler by water pump and water pipe.
9. the full residual neat recovering system of electric furnace according to claim 8, which is characterized in that the heat convection boiler is using vertical
Straight heat convection boiler.
10. the full residual neat recovering system of electric furnace according to claim 9, which is characterized in that multiple economizers are set to
The tail portion of the heat convection boiler, the economizer are located at the lower section of multiple evaporators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920289900.0U CN209623391U (en) | 2019-03-07 | 2019-03-07 | The full residual neat recovering system of electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920289900.0U CN209623391U (en) | 2019-03-07 | 2019-03-07 | The full residual neat recovering system of electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209623391U true CN209623391U (en) | 2019-11-12 |
Family
ID=68456082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920289900.0U Active CN209623391U (en) | 2019-03-07 | 2019-03-07 | The full residual neat recovering system of electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209623391U (en) |
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2019
- 2019-03-07 CN CN201920289900.0U patent/CN209623391U/en active Active
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