CN220871477U - Steelmaking electric furnace flue gas waste heat utilization power generation system - Google Patents
Steelmaking electric furnace flue gas waste heat utilization power generation system Download PDFInfo
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- CN220871477U CN220871477U CN202322281512.7U CN202322281512U CN220871477U CN 220871477 U CN220871477 U CN 220871477U CN 202322281512 U CN202322281512 U CN 202322281512U CN 220871477 U CN220871477 U CN 220871477U
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- 239000002918 waste heat Substances 0.000 title claims abstract description 124
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000003546 flue gas Substances 0.000 title claims abstract description 59
- 238000010248 power generation Methods 0.000 title claims abstract description 43
- 238000009628 steelmaking Methods 0.000 title claims abstract description 27
- 239000000428 dust Substances 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000011084 recovery Methods 0.000 claims abstract description 24
- 230000001502 supplementing effect Effects 0.000 claims abstract description 16
- 238000004062 sedimentation Methods 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 abstract description 8
- 238000004146 energy storage Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
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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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a power generation system utilizing waste heat of flue gas of a steelmaking electric furnace, which comprises a flue gas dust removal module, a waste heat recovery module, a water supplementing module and an air expansion power generation module; through the structural design and cooperation among the flue gas dust removal module, the waste heat recovery module, the water supplementing module and the air expansion power generation module, waste heat gas discharged through a chimney directly enters the air storage tank through the air compressor, high-pressure air firstly enters the primary heater for heating and then enters the waste heat heater for heating to a high-temperature state, the waste heat heater can effectively utilize partial waste heat to heat compressed air, the energy storage power generation efficiency is improved, the high-temperature high-pressure compressed air enters the expansion machine for expansion power generation, and therefore most or all of compressed air pressure can be released, most or all of stored energy is obtained, the energy storage utilization rate of the system is high, and the power generation efficiency of the system is high.
Description
Technical Field
The utility model relates to the technical field of waste heat recovery in the metallurgical industry, in particular to a power generation system utilizing waste heat of flue gas of a steelmaking electric furnace.
Background
The ferrous metallurgy industry is a high energy consumption industry, a large amount of energy is consumed each year, and although the heat utilization efficiency of the system is greatly improved along with the development of various energy saving technologies, a large amount of medium-low temperature flue gas waste heat cannot be fully utilized. The heat energy of a large amount of high-temperature flue gas generated in the electric furnace steelmaking process is not fully and effectively utilized, at present, a circulating water chilling or air cooling mode is generally adopted, the high-temperature flue gas is cooled to below 200 ℃ from 1000 ℃, the high-temperature flue gas enters a subsequent bag type dust remover, and is discharged after dust removal up to the standard, waste heat resource waste is serious, and the difficulty of electric furnace flue gas waste heat recovery is that: the temperature of the flue gas is high and reaches more than 1000 ℃ at the highest temperature; the alternating amplitude of the flue gas is large, 1 furnace steel is smelted every 35-50 min on average, and the temperature of the furnace steel fluctuates between normal temperature and 1000 ℃; the flue gas quantity generated by each furnace steel also fluctuates along with the smelting period, and shows strong periodic variation; high dust content.
Later, a high-efficiency recovery system for the flue gas waste heat of the steelmaking electric furnace appears on the market, and the high-efficiency recovery system comprises a waste heat recovery device, a water supplementing system and a flue gas dust removal system, wherein an adiabatic settling chamber is adopted, so that the temperature of flue gas entering a waste heat boiler is increased, and the quality of waste heat resources is improved; the flue gas waste heat is fully utilized, the flue gas waste heat is effectively recycled, and the process waste heat recycling efficiency is improved, but when the waste heat boiler fails, the waste heat boiler is separated, high-temperature flue gas is cooled to about 200 ℃ through the air cooler, and then is discharged into the atmosphere through the induced draft fan and the chimney after being dedusted through the bag type dust collector, so that when the waste heat boiler fails, the part of waste heat can only be wasted and discharged into the atmosphere, and the part of waste heat cannot be fully and effectively utilized, so that waste heat resources are wasted.
Therefore, a new technical solution is needed to solve the above problems.
Disclosure of utility model
In view of the above, the main object of the present utility model is to provide a power generation system utilizing waste heat of flue gas in a steelmaking electric furnace, which is designed and matched by a flue gas dust removal module, a waste heat recovery module, a water supplementing module and an air expansion power generation module, so that waste heat gas discharged from a chimney directly enters a gas storage tank through an air compressor, high-pressure air firstly enters a primary heater to be heated, then enters a waste heat heater to be heated to a high temperature state, the waste heat heater can effectively utilize part of the waste heat to heat compressed air, the energy storage power generation efficiency is improved, and the high-temperature high-pressure compressed air enters an expansion machine to be expanded for power generation, so that most or all of compressed air pressure can be released, most or all of stored energy is obtained, the energy storage utilization rate of the system is high, and the power generation efficiency of the system is high, thereby effectively solving the problem that in the traditional technology, when a waste heat boiler fails, part of the waste heat can only be wasted and waste heat resources are discharged into the atmosphere.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The power generation system comprises a flue gas dust removal module, a waste heat recovery module, a water supplementing module and an air expansion power generation module; the output end of the flue gas dust removal module is connected with one end of the waste heat recovery module, one end of the water supplementing module is connected with the other end of the waste heat recovery module, and the air expansion power generation module is connected with the other end of the flue gas dust removal module;
The flue gas dust removal module comprises a steelmaking electric furnace, a high-temperature sedimentation chamber, an air cooler, a dust remover, an induced draft fan and a chimney, wherein the output end of the steelmaking electric furnace is communicated with the input end of the high-temperature sedimentation chamber through a high-temperature flue, one side output end of the high-temperature sedimentation chamber is connected with the input end of the air cooler, a first valve is further arranged between one side output end of the high-temperature sedimentation chamber and the input end of the air cooler, the output end of the air cooler is connected with the input end of the dust remover, a second valve is further arranged between the output end of the air cooler and the input end of the dust remover, the output end of the dust remover is connected with the input end of the induced draft fan, and the output end of the induced draft fan is connected with the input end of the chimney;
The waste heat recovery module comprises a waste heat boiler, a deaerator and a heat accumulator; the output end of the other side of the high-temperature sedimentation chamber is communicated with the input end of the waste heat boiler, a third valve is arranged between the output end of the other side of the high-temperature sedimentation chamber and the waste heat boiler, the output end of the waste heat boiler is connected with the input end of the heat accumulator, and the output end of the deaerator is respectively connected with the input end of one side of the waste heat boiler and the input end of one end of the heat accumulator;
The water supplementing module comprises a water tank, wherein the input end of the water tank is used for being connected with a factory water pipe, and the output end of the water tank is communicated with the input end of the deaerator through a first pump body;
The air expansion power generation module comprises an air compressor, an air storage tank, a primary heater, a waste heat heater and an expander, wherein the input end of the air compressor is communicated with the output end of a chimney, the output end of the air compressor is communicated with the input end of the air storage tank, the output end of the air storage tank is connected with the input end of the primary heater, the output end of the primary heater is connected with the input end of the waste heat heater, and the output end of the waste heat heater is connected with the input end of the expander.
As a preferable scheme, the output end of the air storage tank is also provided with an air storage valve.
As a preferable scheme, the other side input end of the steelmaking electric furnace is connected with the other side input end of the waste heat heater.
As a preferred scheme, the waste heat boiler comprises an economizer, an evaporator, a steam drum, a radiation light pipe tube panel and a membrane wall, wherein the evaporator, the steam drum, the radiation light pipe tube panel and the membrane wall are connected through a first pipeline and a second pipeline to realize steam-water circulation, the output end of the economizer is connected with the input end of the steam drum, and the output end of the steam drum is connected with the input end of one side of the heat accumulator.
As a preferable scheme, a second pump body is further arranged between the output end of the deaerator and one side input end of the waste heat boiler and one end input end of the heat accumulator.
As a preferable scheme, the output end of the other side of the waste heat boiler is connected with the input end of the other side of the dust remover.
As a preferable scheme, a fourth valve is further arranged between the output end of the other side of the waste heat boiler and the input end of the other side of the dust remover.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular, the technical scheme is that the high-temperature flue gas of the steelmaking electric furnace is sent into the high-temperature settling chamber through the high-temperature flue by utilizing the cooperation among the flue gas dust removal module, the waste heat recovery module and the water supplementing module under the normal operation state through the structural design and the cooperation among the flue gas dust removal module, the waste heat recovery module, the water supplementing module and the air expansion power generation module, the combustible gas in the high-temperature flue gas is burned out in the high-temperature settling chamber, large particle dust in the flue gas is removed, then the high-temperature flue gas is sent into the waste heat boiler to generate saturated steam, and the saturated steam is sent into the factory heat accumulator after being subjected to multistage separation, and is continuously and stably output after being regulated by the heat accumulator; when the waste heat boiler breaks down, the third valve and the fourth valve are closed, the waste heat boiler is separated, the first valve is opened, high-temperature flue gas is cooled to about 200 ℃ through the air cooler, then the high-temperature flue gas is dedusted through the dust remover and then discharged into the air expansion power generation module through the induced draft fan and the chimney, the air expansion power generation module is communicated with the output end of the chimney through the input end of the air compressor, waste heat gas discharged through the chimney directly enters the air storage tank through the air compressor, the air storage valve is opened when energy is required to be released, high-pressure air firstly enters the primary heater for heating, then enters the waste heat heater for heating to a high-temperature state, the waste heat heater can effectively utilize part of waste heat, the compressed air is heated, the energy storage power generation efficiency is improved, the compressed air at high temperature and high pressure enters the expander for expansion power generation, thereby the compressed air pressure is mostly or completely released, the energy is mostly or completely stored, the energy utilization rate of the system is high, and the problem that waste of waste heat energy only caused by the waste of part of waste heat energy when the waste heat boiler breaks down in the traditional technology is effectively solved.
In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic diagram of a connection structure and a process flow according to an embodiment of the utility model;
FIG. 2 is a schematic diagram of another process and connection structure according to an embodiment of the present utility model.
The attached drawings are used for identifying and describing:
10. Flue gas dust removal module 11 and steelmaking electric furnace
12. High-temperature sedimentation chamber 13 and air cooler
14. Dust remover 15, induced draft fan
16. Chimney 17, first valve
18. Second valve 20 and waste heat recovery module
21. Waste heat boiler 22 and deaerator
23. Accumulator 24, third valve
25. Second pump body 211 and economizer
212. Evaporator 213, steam drum
214. Radiant light tube panel 215, film wall
26. Fourth valve 30, water replenishing module
31. Water tank 32, first pump body
40. Air expansion power generation module 41 and air compressor
42. Air reservoir 43, primary heater
44. Waste heat heater 45 and expander
46. And a gas storage valve.
Detailed Description
Referring to fig. 1 to 2, specific structures of embodiments of the present utility model are shown.
In the description of the present utility model, it should be noted that, for the azimuth words, terms such as "upper", "lower", "front", "rear", "left", "right", etc., indicate azimuth and positional relationships as shown based on the drawings or when worn normally, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the device or element to be referred must have a specific azimuth, be configured and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.
The flue gas waste heat power generation system of the steelmaking electric furnace 11 comprises a flue gas dust removal module 10, a waste heat recovery module 20, a water supplementing module 30 and an air expansion power generation module 40.
The output end of the flue gas dust removal module 10 is connected to one end of the waste heat recovery module 20, one end of the water supplementing module 30 is connected to the other end of the waste heat recovery module 20, and the air expansion power generation module 40 is connected to the other end of the flue gas dust removal module 10.
The flue gas dust removal module 10 comprises a steelmaking electric furnace 11, a high-temperature settling chamber 12, an air cooler 13, a dust remover 14, an induced draft fan 15 and a chimney 16, wherein the output end of the steelmaking electric furnace 11 is communicated with the input end of the high-temperature settling chamber 12 through a high-temperature flue, one side output end of the high-temperature settling chamber 12 is connected with the input end of the air cooler 13, a first valve 17 is arranged between one side output end of the high-temperature settling chamber 12 and the input end of the air cooler 13, and preferably, the high-temperature flue is a water-cooling flue; the high temperature settling chamber 12 is an adiabatic settling chamber. The output end of the air cooler 13 is connected to the input end of the dust remover 14, wherein a second valve 18 is further arranged between the output end of the air cooler 13 and the input end of the dust remover 14, the output end of the dust remover 14 is connected to the input end of the induced draft fan 15, the output end of the induced draft fan 15 is connected to the input end of the chimney 16, and the dust remover 14 is a bag type dust remover.
The waste heat recovery module 20 comprises a waste heat boiler 21, a deaerator 22 and a heat accumulator 23; the output end of the other side of the high-temperature settling chamber 12 is communicated with the input end of the waste heat boiler 21, a third valve 24 is further arranged between the output end of the other side of the high-temperature settling chamber 12 and the waste heat boiler 21, the output end of the waste heat boiler 21 is connected with the input end of the heat accumulator 23, and the output end of the deaerator 22 is respectively connected with the input end of one side of the waste heat boiler 21 and the input end of one end of the heat accumulator 23; preferably, a second pump body 25 is further arranged between the output end of the deaerator 22 and one side input end of the waste heat boiler 21 and one end input end of the heat accumulator 23. The heat accumulator 23 is connected with a factory pipe network through a steam pipeline.
Preferably, the waste heat boiler 21 comprises an economizer 211, an evaporator 212, a steam drum 213, a radiation light pipe screen 214 and a membrane wall 215, wherein the evaporator 212, the steam drum 213, the radiation light pipe screen 214 and the membrane wall 215 are connected through a first pipeline and a second pipeline to realize steam-water circulation, an output end of the economizer 211 is connected with an input end of the steam drum 213, and an output end of the steam drum 213 is connected with an input end on one side of the heat accumulator 23. Preferably, the other side output end of the waste heat boiler 21 is connected to the other side input end of the dust remover 14. Preferably, a fourth valve 26 is further disposed between the other side output end of the waste heat boiler 21 and the other side input end of the dust collector 14.
The water replenishing module 30 comprises a water tank 31, wherein the input end of the water tank 31 is used for being connected with a factory water pipe, and the output end of the water tank 31 is communicated with the input end of the deaerator 22 through a first pump body 32; the first pump body 32 is a water supplementing pump. The water tank 31 is a demineralized water tank 31. The second pump body 25 is a water feed pump. The water in the water tank 31 is sent to the deaerator 22 through the first pump body 32, deoxidized and pumped into the waste heat boiler 21 and the heat accumulator 23 respectively through the second pump body 25.
The air expansion power generation module 40 comprises an air compressor 41, an air storage tank 42, a primary heater 43, a waste heat heater 44 and an expander 45, wherein the input end of the air compressor 41 is communicated with the output end of the chimney 16, the output end of the air compressor 41 is communicated with the input end of the air storage tank 42, the output end of the air storage tank 42 is connected with the input end of the primary heater 43, and preferably, an air storage valve 46 is further arranged on the output end of the air storage tank 42.
The output end of the primary heater 43 is connected to the input end of the waste heat heater 44, and the output end of the waste heat heater 44 is connected to the input end of the expander 45. Preferably, the other side input end of the steelmaking electric furnace 11 is connected to the other side input end of the waste heat heater 44. The heat source of the waste heat heater 44 may also be provided by industrial high temperature waste heat, such as the high temperature flue gas of a cement kiln.
The utility model mainly adopts the structural design and the cooperation among a flue gas dust removal module, a waste heat recovery module, a water supplementing module and an air expansion power generation module, under the normal operation state, high-temperature flue gas of a steelmaking electric furnace is sent into a high-temperature settling chamber through a high-temperature flue, combustible gas in the high-temperature flue gas is burned out in the high-temperature settling chamber, large particle dust in the flue gas is removed, then the high-temperature flue gas is sent into a waste heat boiler to generate saturated steam, the saturated steam is sent into a factory heat accumulator after being subjected to multistage separation, and the intermittent and fluctuating saturated steam is continuously and stably output after being regulated by the heat accumulator; when the waste heat boiler breaks down, the third valve and the fourth valve are closed, the waste heat boiler is separated, the first valve is opened, high-temperature flue gas is cooled to about 200 ℃ through the air cooler, then the high-temperature flue gas is dedusted through the dust remover and then discharged into the air expansion power generation module through the induced draft fan and the chimney, the air expansion power generation module is communicated with the output end of the chimney through the input end of the air compressor, waste heat gas discharged through the chimney directly enters the air storage tank through the air compressor, the air storage valve is opened when energy is required to be released, high-pressure air firstly enters the primary heater for heating, then enters the waste heat heater for heating to a high-temperature state, the waste heat heater can effectively utilize part of waste heat, the compressed air is heated, the energy storage power generation efficiency is improved, the compressed air at high temperature and high pressure enters the expander for expansion power generation, thereby the compressed air pressure is mostly or completely released, the energy is mostly or completely stored, the energy utilization rate of the system is high, and the problem that waste of waste heat energy only caused by the waste of part of waste heat energy when the waste heat boiler breaks down in the traditional technology is effectively solved.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.
Claims (7)
1. A steelmaking electric furnace flue gas waste heat utilization power generation system is characterized in that: the system comprises a flue gas dust removal module, a waste heat recovery module, a water supplementing module and an air expansion power generation module; the output end of the flue gas dust removal module is connected with one end of the waste heat recovery module, one end of the water supplementing module is connected with the other end of the waste heat recovery module, and the air expansion power generation module is connected with the other end of the flue gas dust removal module;
The flue gas dust removal module comprises a steelmaking electric furnace, a high-temperature sedimentation chamber, an air cooler, a dust remover, an induced draft fan and a chimney, wherein the output end of the steelmaking electric furnace is communicated with the input end of the high-temperature sedimentation chamber through a high-temperature flue, one side output end of the high-temperature sedimentation chamber is connected with the input end of the air cooler, a first valve is further arranged between one side output end of the high-temperature sedimentation chamber and the input end of the air cooler, the output end of the air cooler is connected with the input end of the dust remover, a second valve is further arranged between the output end of the air cooler and the input end of the dust remover, the output end of the dust remover is connected with the input end of the induced draft fan, and the output end of the induced draft fan is connected with the input end of the chimney;
The waste heat recovery module comprises a waste heat boiler, a deaerator and a heat accumulator; the output end of the other side of the high-temperature sedimentation chamber is communicated with the input end of the waste heat boiler, a third valve is arranged between the output end of the other side of the high-temperature sedimentation chamber and the waste heat boiler, the output end of the waste heat boiler is connected with the input end of the heat accumulator, and the output end of the deaerator is respectively connected with the input end of one side of the waste heat boiler and the input end of one end of the heat accumulator;
The water supplementing module comprises a water tank, wherein the input end of the water tank is used for being connected with a factory water pipe, and the output end of the water tank is communicated with the input end of the deaerator through a first pump body;
The air expansion power generation module comprises an air compressor, an air storage tank, a primary heater, a waste heat heater and an expander, wherein the input end of the air compressor is communicated with the output end of a chimney, the output end of the air compressor is communicated with the input end of the air storage tank, the output end of the air storage tank is connected with the input end of the primary heater, the output end of the primary heater is connected with the input end of the waste heat heater, and the output end of the waste heat heater is connected with the input end of the expander.
2. The steelmaking electric furnace flue gas waste heat utilization power generation system as defined in claim 1 wherein: and the output end of the air storage tank is also provided with an air storage valve.
3. The steelmaking electric furnace flue gas waste heat utilization power generation system as defined in claim 1 wherein: the other side input end of the steelmaking electric furnace is connected with the other side input end of the waste heat heater.
4. The steelmaking electric furnace flue gas waste heat utilization power generation system as defined in claim 1 wherein: the waste heat boiler comprises an economizer, an evaporator, a steam drum, a radiation light pipe screen and a membrane type wall, wherein the evaporator, the steam drum, the radiation light pipe screen and the membrane type wall are connected through a first pipeline and a second pipeline to realize steam-water circulation, the output end of the economizer is connected with the input end of the steam drum, and the output end of the steam drum is connected with the input end of one side of the heat accumulator.
5. The power generation system utilizing waste heat of flue gas of a steelmaking electric furnace as defined in claim 4, wherein: and a second pump body is further arranged between the output end of the deaerator and one side input end of the waste heat boiler and one end input end of the heat accumulator.
6. The steelmaking electric furnace flue gas waste heat utilization power generation system as defined in claim 1 wherein: the other side output end of the waste heat boiler is connected with the other side input end of the dust remover.
7. The power generation system utilizing waste heat of flue gas of a steelmaking electric furnace as defined in claim 6, wherein: a fourth valve is arranged between the output end of the other side of the waste heat boiler and the input end of the other side of the dust remover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322281512.7U CN220871477U (en) | 2023-08-23 | 2023-08-23 | Steelmaking electric furnace flue gas waste heat utilization power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322281512.7U CN220871477U (en) | 2023-08-23 | 2023-08-23 | Steelmaking electric furnace flue gas waste heat utilization power generation system |
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|---|---|
| CN220871477U true CN220871477U (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322281512.7U Active CN220871477U (en) | 2023-08-23 | 2023-08-23 | Steelmaking electric furnace flue gas waste heat utilization power generation system |
Country Status (1)
| Country | Link |
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| CN (1) | CN220871477U (en) |
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2023
- 2023-08-23 CN CN202322281512.7U patent/CN220871477U/en active Active
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