CN216558344U - Submerged arc furnace flue gas waste heat recovery power generation system - Google Patents
Submerged arc furnace flue gas waste heat recovery power generation system Download PDFInfo
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- CN216558344U CN216558344U CN202122971049.XU CN202122971049U CN216558344U CN 216558344 U CN216558344 U CN 216558344U CN 202122971049 U CN202122971049 U CN 202122971049U CN 216558344 U CN216558344 U CN 216558344U
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- waste heat
- arc furnace
- submerged arc
- smoke
- flue gas
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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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 submerged arc furnace flue gas waste heat recovery power generation system, which comprises a submerged arc furnace and a generator set; the output end of the submerged arc furnace is connected with a high-temperature section exhaust pipe, the output end of the high-temperature section exhaust pipe is connected with a cyclone separator, the output end of the cyclone separator is connected with a smoke and dust isolating medium adding system, the output end of the smoke and dust isolating medium adding system is connected with a waste heat boiler, the output end of the waste heat boiler is connected with a generator set, the waste heat boiler is provided with an output port, the output port is connected with an air preheater, and the output port of the air preheater is connected with a hot air adding pipeline of the submerged arc furnace; therefore, the concentration of the smoke dust entering the waste heat boiler is reduced, the operation environment of the waste heat boiler is improved, the normal operation of work is ensured, the adhesion degree among smoke dust particles is reduced, the waste heat utilization rate of the smoke is improved, and the waste of smoke waste heat resources is reduced.
Description
Technical Field
The utility model relates to the technical field of flue gas waste heat recovery power generation, in particular to a flue gas waste heat recovery power generation system of a submerged arc furnace.
Background
The metallurgical industry is basically a high-energy-consumption industry, and under the condition of energy shortage in the current society, the energy consumption can be reduced, and the environmental pollution can be reduced, so that the development direction of the ferrous metallurgy industry is provided, the economic benefit of an enterprise per se is improved, and the social benefit can be increased. The metallurgical industry submerged arc furnace not only consumes a large amount of energy, but also discharges a large amount of high-temperature flue gas, thereby wasting the energy and polluting the environment.
At present, although the prior submerged arc furnace flue gas waste heat recovery power generation system in the ferrous metallurgy industry can meet the requirement of certain submerged arc furnace flue gas waste heat recovery power generation, the concentration of smoke dust entering a waste heat boiler is high, the operation environment of the waste heat boiler is affected, the adhesion degree among smoke dust particles is high, the waste heat utilization rate of the smoke gas is low, and the waste of flue gas waste heat resources is caused.
Therefore, a new technology needs to be developed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a submerged arc furnace flue gas waste heat recovery power generation system, which reduces the concentration of flue gas entering a waste heat boiler, improves the operation environment of the waste heat boiler, ensures the normal operation of the operation, reduces the adhesion degree between flue gas particles, improves the utilization rate of flue gas waste heat, and reduces the waste of flue gas waste heat resources.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a submerged arc furnace flue gas waste heat recovery power generation system comprises a submerged arc furnace and a generator set;
the output of this hot stove in ore deposit is connected with the high temperature section exhaust pipe, the output of this high temperature section exhaust pipe is connected with cyclone, this cyclone's output is connected with smoke and dust isolation medium and adds the system, the output that this smoke and dust isolation medium added the system is connected with exhaust-heat boiler, generating set is connected to this exhaust-heat boiler's output, this exhaust-heat boiler has an delivery outlet, this delivery outlet is connected with air heater, this air heater's output is connected in the hot-blast pipeline of adding of the hot stove in ore deposit.
As a preferred scheme, the waste heat boiler is connected with a steam drum, the output end of the steam drum is connected with a generator set, and the steam drum is used for heating feed water into steam, inputting the steam into the waste heat boiler, heating the steam into superheated steam, and sending the superheated steam to the generator set.
As a preferred scheme, condenser, condensate pump, oxygen-eliminating device, feed pump have connected gradually between the output of generating set and the feedwater input of steam pocket, an exit linkage of condenser has the cooling tower, the cooling tower is through an import that circulating water pump connects the condenser.
As a preferred scheme, the generating set comprises a steam turbine and a generator connected to the steam turbine, wherein the output end of the steam drum is connected to the steam turbine, and the output end of the steam turbine is connected to the condenser.
As a preferred scheme, the smoke and dust isolating medium adding system consists of a smoke pipeline, a homogenizing chamber, a screw feeder, a material sealing pump and a hot air pipeline, wherein the homogenizing chamber, the screw feeder, the material sealing pump and the hot air pipeline are installed on the smoke pipeline.
As a preferred scheme, the output end of the cyclone separator is also sequentially connected with a drying kiln, a dust remover, an induced draft fan and a chimney.
Preferably, the dust remover is a bag type dust remover.
Preferably, an outlet of the waste heat boiler is connected to an input end of the dust remover.
Preferably, the chimney opening of the chimney forms a waste gas discharge opening, the waste gas discharge opening is connected with a discharge pipe, and an air outlet of the discharge pipe is arranged downwards.
As a preferred scheme, a flue gas online monitoring system for detecting whether the flue gas to be discharged meets the discharge standard is arranged on the chimney.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, and particularly, according to the technical scheme, the smoke dust isolation medium adding system is mainly arranged and consists of a smoke gas pipeline, a homogenizing chamber, a screw feeder, a material sealing pump and a hot air pipeline, wherein the homogenizing chamber, the screw feeder, the material sealing pump and the hot air pipeline are arranged on the smoke gas pipeline, so that the smoke dust concentration entering the waste heat boiler is reduced, the running environment of the waste heat boiler is improved, the normal running of the work is ensured, the adhesion degree among smoke dust particles is reduced, and the output end of the air preheater is connected to the hot air adding pipeline of the submerged arc furnace through the arrangement of the air preheater, so that the waste heat utilization rate of smoke gas is improved, and the waste of smoke gas waste heat resources is reduced.
To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic diagram of a power generation system according to an embodiment of the present invention.
The attached drawings indicate the following:
1. submerged arc furnace 2, high temperature section exhaust pipe
3. Cyclone separator
5. Smoke and dust isolation medium adds system 6, exhaust-heat boiler
7. Air preheater 8 and hot air feeding pipeline
9. Steam drum 10 and condenser
11. Condensate pump 12, deaerator
13. Feed pump 14, cooling tower
15. Steam turbine 16 and generator
17. Drying kiln 18, cloth bag type dust remover
19. An induced draft fan 20 and a chimney.
Detailed Description
Referring to fig. 1, a specific structure of an embodiment of the utility model is shown.
A submerged arc furnace flue gas waste heat recovery power generation system comprises a submerged arc furnace 1 and a generator set; the output of this hot stove 1 in ore deposit is connected with high temperature section exhaust pipe 2, the output of this high temperature section exhaust pipe 2 is connected with cyclone 3, the output of this cyclone 3 is connected with smoke and dust and keeps apart medium and add system 5, the output that this smoke and dust keeps apart medium and adds system 5 is connected with exhaust-heat boiler 6, generating set is connected to exhaust-heat boiler 6's output, this exhaust-heat boiler 6 has an output port, this output port is connected with air heater 7, the output of this air heater 7 is connected in hot-blast joining pipeline 8 of hot stove 1 in ore deposit.
Preferably, in this embodiment, the exhaust-heat boiler 6 is connected with a steam drum 9, an output end of the steam drum 9 is connected with the generator set, and the steam drum 9 is used for heating the feed water into steam, inputting the steam into the exhaust-heat boiler 6, heating the steam into superheated steam, and then sending the superheated steam to the generator set. Condenser 10, condensate pump 11, oxygen-eliminating device 12, water-feeding pump 13 have connected gradually between generating set's the output and the feedwater input of drum 9, an exit linkage of condenser 10 has cooling tower 14, cooling tower 14 is through an import that circulating water pump connects condenser 10. The generating set comprises a steam turbine 15 and a generator 16 connected to the steam turbine 15, the output end of the steam drum 9 is connected to the steam turbine 15, and the output end of the steam turbine 15 is connected to the condenser 10.
Preferably, in this embodiment, the smoke isolation medium adding system 5 is composed of a smoke pipeline, and a homogenizing chamber, a screw feeder, a material sealing pump and a hot air pipeline which are installed on the smoke pipeline.
Preferably, in this embodiment, the output end of the cyclone separator 3 is further connected with a drying kiln 17, a dust remover, an induced draft fan 19, and a chimney 20 in sequence. And one outlet of the waste heat boiler 6 is connected with the input end of the dust remover. The dust remover is a bag type dust remover 18, and certainly, the dust remover is not limited to the bag type dust remover 18, and may be other dust removers, which are not described herein.
Preferably, in this embodiment, a chimney opening of the chimney 20 forms an exhaust gas discharge opening, and the exhaust gas discharge opening is connected with a discharge pipe, and an air outlet of the discharge pipe is arranged downward. Here, the outlet of the exhaust pipe is disposed downward, so that it is possible to prevent rain and snow, etc. from entering the chimney 20 from the outlet and affecting smooth discharge of the chimney 20.
Preferably, in this embodiment, the chimney 20 is provided with an online flue gas monitoring system for detecting whether the flue gas to be discharged meets the emission standard, and the components and the content of each component of the flue gas to be discharged in the chimney 20 are monitored. The on-line flue gas Monitoring System can adopt a Continuous flue gas Emission Monitoring System (CEMS) in the prior art, and is a device for continuously Monitoring the concentration and the total Emission amount of gaseous pollutants and particulate matters emitted by an air pollution source and transmitting information to a display screen and a department in charge in real time.
In summary, the design of the utility model is characterized in that the smoke dust isolation medium adding system is mainly arranged and consists of a smoke gas pipeline, a homogenizing chamber, a screw feeder, a material sealing pump and a hot air pipeline, wherein the homogenizing chamber, the screw feeder, the material sealing pump and the hot air pipeline are arranged on the smoke gas pipeline, so that the smoke dust concentration entering the waste heat boiler is reduced, the operation environment of the waste heat boiler is improved, the normal operation of the operation is ensured, the adhesion degree among smoke dust particles is reduced, and the output end of the air preheater is connected to the hot air adding pipeline of the submerged arc furnace through the arrangement of the air preheater, so that the waste heat utilization rate of smoke gas is improved, and the waste of smoke gas waste heat resources is reduced.
Claims (10)
1. The utility model provides a hot stove flue gas waste heat recovery power generation system in ore deposit which characterized in that: comprises a submerged arc furnace and a generator set;
the output of this hot stove in ore deposit is connected with the high temperature section exhaust pipe, the output of this high temperature section exhaust pipe is connected with cyclone, this cyclone's output is connected with smoke and dust isolation medium and adds the system, the output that this smoke and dust isolation medium added the system is connected with exhaust-heat boiler, generating set is connected to this exhaust-heat boiler's output, this exhaust-heat boiler has an delivery outlet, this delivery outlet is connected with air heater, this air heater's output is connected in the hot-blast pipeline of adding of the hot stove in ore deposit.
2. The submerged arc furnace flue gas waste heat recovery power generation system of claim 1, characterized in that: the waste heat boiler is connected with a steam drum, the output end of the steam drum is connected with a generator set, and the steam drum is used for heating feed water into steam, inputting the steam into the waste heat boiler, heating the steam into superheated steam and then sending the superheated steam to the generator set.
3. The submerged arc furnace flue gas waste heat recovery power generation system of claim 2, characterized in that: condenser, condensate pump, oxygen-eliminating device, water-feeding pump have connected gradually between the output of generating set and the feedwater input of steam pocket, an exit linkage of condenser has the cooling tower, the cooling tower is through an import that circulating water pump connects the condenser.
4. The submerged arc furnace flue gas waste heat recovery power generation system of claim 3, characterized in that: the generating set includes the steam turbine and connects in the generator of steam turbine, the output of steam pocket is connected in the steam turbine, the output of steam turbine is connected in the condenser.
5. The submerged arc furnace flue gas waste heat recovery power generation system of claim 1, characterized in that: the smoke and dust isolating medium adding system consists of a smoke and dust pipeline, and a homogenizing chamber, a screw feeder, a material sealing pump and a hot air pipeline which are arranged on the smoke and dust pipeline.
6. The submerged arc furnace flue gas waste heat recovery power generation system of claim 1, characterized in that: the output end of the cyclone separator is sequentially connected with a drying kiln, a dust remover, a draught fan and a chimney.
7. The submerged arc furnace flue gas waste heat recovery power generation system of claim 6, characterized in that: the dust remover is a cloth bag type dust remover.
8. The submerged arc furnace flue gas waste heat recovery power generation system of claim 6, characterized in that: and one outlet of the waste heat boiler is connected with the input end of the dust remover.
9. The submerged arc furnace flue gas waste heat recovery power generation system of claim 6, characterized in that: the chimney opening of chimney forms exhaust-gas discharge mouth, exhaust-gas discharge mouth is connected with the delivery pipe, the gas outlet of delivery pipe sets up downwards.
10. The submerged arc furnace flue gas waste heat recovery power generation system of claim 6, characterized in that: and the chimney is provided with a smoke online monitoring system for detecting whether the smoke to be discharged meets the discharge standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122971049.XU CN216558344U (en) | 2021-11-30 | 2021-11-30 | Submerged arc furnace flue gas waste heat recovery power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122971049.XU CN216558344U (en) | 2021-11-30 | 2021-11-30 | Submerged arc furnace flue gas waste heat recovery power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216558344U true CN216558344U (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122971049.XU Active CN216558344U (en) | 2021-11-30 | 2021-11-30 | Submerged arc furnace flue gas waste heat recovery power generation system |
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| CN (1) | CN216558344U (en) |
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2021
- 2021-11-30 CN CN202122971049.XU patent/CN216558344U/en active Active
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| GR01 | Patent grant | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Waste heat recovery and power generation system for submerged arc furnace flue gas Effective date of registration: 20230619 Granted publication date: 20220517 Pledgee: Dongguan Nancheng Sub branch of Agricultural Bank of China Co.,Ltd. Pledgor: GUANGDONG KAINENG ENVIRONMENTAL PROTECTION & ENERGY Co.,Ltd.|Yangjiang Guangrun Energy Saving Technology Co.,Ltd.|Yulin Guangrun waste heat power generation Co.,Ltd.|Ningde Kaineng Environmental Protection Energy Co.,Ltd. Registration number: Y2023980044253 |