CN106643191A - Power generation system based on steel smelting furnace and steel rolling heating furnace waste heat integration - Google Patents
Power generation system based on steel smelting furnace and steel rolling heating furnace waste heat integration Download PDFInfo
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- CN106643191A CN106643191A CN201710068791.5A CN201710068791A CN106643191A CN 106643191 A CN106643191 A CN 106643191A CN 201710068791 A CN201710068791 A CN 201710068791A CN 106643191 A CN106643191 A CN 106643191A
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- waste heat
- heater
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- steel
- converter
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- 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
-
- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a power generation system based on steel smelting furnace and steel rolling heating furnace waste heat integration. The power generation system comprises a steel smelting furnace waste heat recycling device, a steel rolling heating furnace bottom water beam vaporizing and cooling device, a steel rolling heating furnace tail flue gas waste heat recycling flue, a high-pressure boiler barrel, a lower-pressure boiler barrel-oxygen extractor, a turbine and a power generator. Saturated steam generated by the steel smelting furnace waste heat recycling device, saturated steam generated by the steel rolling heating furnace bottom water beam vaporizing and cooling device and saturated steam generated by the steel rolling heating furnace tail flue gas waste heat recycling flue are gathered and enter a superheater in the steel rolling heating furnace tail flue gas waste heat recycling flue, a steam outlet of the superheater is connected with the turbine, the turbine is connected with the power generator, and the steam impulses a turbine set to do work so as to drive the power generator to generate power. Waste heat of a steel smelting furnace and waste heat of a steel rolling heating furnace are comprehensively utilized, compared with a conventional mode that utilization of waste heat of the steel smelting furnace and utilization of waste heat of the steel rolling heating furnace are separated from each other, a thermal system is more compact, layout is more fine, and the investment cost is lower.
Description
Technical field
The present invention relates to the field of energy-saving technology of steel industry, specifically, is related to one kind and is added with steel rolling based on converter
The integrated electricity generation system of hot stove waste heat.
Background technology
There is substantial amounts of waste heat, waste energy resource in smelting procedure in iron and steel enterprise.In the last few years, each iron and steel enterprise is progressively
Pay attention to the recycling of steel mill's residual heat resources, and achieve certain effect.But, because engineering construction is typically all that split is built
If, each operation be all when subpackage is built it is separately independent, each operation process system of itself may optimization design, but
Because the system between each smelting procedure is not planned as a whole, integrated optimization and entirety are lacked between the residual heat resources in each operation
Layout, causes the energy not obtain optimum use, causes a certain degree of energy loss.As iron and steel enterprise is to energy-saving and emission-reduction
Pay attention to day by day, how integrated coupling is carried out the residual heat system between steel mill's each operation, to realize steel mill's bootstrap system
Global optimization, improves the comprehensive utilization ratio of residual heat resources, has become steel-making enterprise increasingly concern.
In each smelting procedure of steel mill, steel making working procedure and steel rolling process are adjacent two procedures, but so far remaining
Heat utilization system is all separately provided, and does not comprehensively utilize the waste heat of converter and heater for rolling steel.
The content of the invention
The present invention intend building it is a kind of based on converter and the integrated electricity generation system of heater for rolling steel waste heat, to converter waste heat
Resource and heater for rolling steel residual heat resources carry out integrating and Optimum utilization in addition, can produce more considerable economic well-being of workers and staff, have
Important practical significance.
According to an aspect of the invention, there is provided a kind of based on converter and the integrated generating system of heater for rolling steel waste heat
System, including converter waste-heat recovery device 1, heater for rolling steel furnace bottom water beam apparatus for vapour-cooling 9, heater for rolling steel tail flue gas
Waste heat reclaiming flue 4, storage heater 2, steam turbine 10, generator 11, wherein, the heater for rolling steel tail flue gas waste heat recovery cigarette
Road 4 is arranged on after the air preheater of heater for rolling steel and arrangement for gas preheating along flue gas flow, and converter waste heat is returned
The intermediate steam that receiving apparatus 1 are produced stable steam of formation Jing after storage heater process is entered and is arranged on more than heater for rolling steel tail flue gas
Superheater 41 in recuperation of heat flue, saturated vapor and steel rolling that heater for rolling steel furnace bottom water beam apparatus for vapour-cooling 9 is produced
The saturated vapor that heating furnace tail flue gas waste heat reclaiming flue 4 is produced collects into the superheater 41, and superheater 41 goes out vapour
Mouth is connected with steam turbine 10, and the steam turbine is connected with the generator 11, the acting of steam red switch Steam Turbine, sends out so as to drive
Electric power generation.
Preferably, be provided with the heater for rolling steel tail flue gas waste heat reclaiming flue 4 sequentially connect superheater 41,
High pressure evaporator 42, high-pressure economizer 43, low pressure evaporator 44 and low-pressure coal saver 45, wherein, low pressure drum-oxygen-eliminating device 5 leads to
Cross outlet pipe 53 to connect with the water inlet of feed pump 6, the water inlet of the delivery port of the feed pump and the high-pressure economizer 43
Connection, the high-pressure economizer 43 is supplied water by pipeline 75 to the high pressure drum 7, and high pressure drum 7 passes through the first down-comer 71
Connect with the water inlet of the high pressure evaporator 42, the venthole of the high pressure evaporator is by the first tedge 74 and the height
The rising mouth of pipe connection of pressure drum 7, forms carbonated drink natural convection loop；High pressure drum 7 is followed by the second down-comer 72 with hot water
The water inlet connection of ring pump 8, the delivery port of the hot water circulating pump and the heater for rolling steel furnace bottom water beam apparatus for vapour-cooling 9
Water inlet connection, the venthole of the heater for rolling steel furnace bottom water beam apparatus for vapour-cooling 9 is by the second tedge 73 and institute
The rising mouth of pipe for stating high pressure drum 7 is connected, formation carbonated drink forced circulation loop, and saturated vapor, the steel-making that high pressure drum 7 is produced
Stove waste-heat recovery device 1 is produced and the stable steam Jing after storage heater process is pooled in steam main 3, the steam main
Venthole is connected with superheater.
Preferably, low pressure drum-oxygen-eliminating device 5 is connected by the 3rd down-comer 52 with the water inlet of the low pressure evaporator 44
Logical, the venthole of the low pressure evaporator 44 is connected by the 3rd tedge 54 with the rising mouth of pipe of the low pressure drum-oxygen-eliminating device 5
It is logical, form carbonated drink natural convection loop.
Preferably, the steam drain of steam turbine 10 and condenser 12, the water inlet of condensate pump 13 along carbonated drink flow process sequentially
Connection, wherein, the condensing water conduit of the delivery port of the condensate pump 13 is divided into two-way, fills with the converter waste heat recovery all the way
1 water inlet connection is put, another road is entered in low pressure cooker cylinder-oxygen-eliminating device 5 Jing after the preheating of low-pressure coal saver 45.
Preferably, a bypass line 55 is separated on the steam main 3, the auxiliary with the low pressure drum-oxygen-eliminating device 5
Heating vapor interface connection.
Preferably, the superheater, high pressure evaporator, high-pressure economizer, low pressure evaporator, low-pressure coal saver are using inverse
Flow arrangement.
Preferably, the heater for rolling steel tail flue gas waste heat reclaiming flue is the flue of built-in heat-transfer surface or integrated remaining
Heat boiler.
Description of the drawings
By being described to embodiment with reference to accompanying drawings below, the features described above and technological merit of the present invention will become
It is more clear and easy to understand.
Fig. 1 is the signal based on converter and the integrated electricity generation system of heater for rolling steel waste heat for representing the embodiment of the present invention
Figure.
Wherein, converter waste-heat recovery device 1, storage heater 2, steam main 3, heater for rolling steel tail flue gas waste heat recovery
Flue 4, superheater 41, high pressure evaporator 42, high-pressure economizer 43, low pressure evaporator 44, low-pressure coal saver 45, low pressure drum-
Oxygen-eliminating device 5, feed pump 6, high pressure drum 7, hot water circulating pump 8, heater for rolling steel furnace bottom water beam apparatus for vapour-cooling 9, steam turbine
10th, on generator 11, condenser 12, condensate pump 13, the first down-comer 71, the second down-comer 72, the second tedge 73, first
Riser 74, pipeline 75, pipeline 51, the 3rd down-comer 52, outlet pipe 53, the 3rd tedge 54.
Specific embodiment
It is of the present invention based on converter and the integrated generating of heater for rolling steel waste heat to describe below with reference to the accompanying drawings
The embodiment of system.One of ordinary skill in the art will recognize, in situation without departing from the spirit and scope of the present invention
Under, can be being modified to described embodiment with a variety of modes or its combination.Therefore, accompanying drawing and it is described in essence
On be illustrative, rather than for limiting scope of the claims.Additionally, in this manual, accompanying drawing is not in scale
Draw, and identical reference represents identical part.It should be noted that the high pressure, low pressure are to distinguish vapour
Two pressure ratings of water system and the differentiation that carries out is named (such as：High steam, the pressure of low-pressure steam separately design for
1.6MPa, 0.5MPa), not absolute high pressure (such as 9.81MPa), absolute low pressure (such as 0.8MPa), also, following carbonated drink flowing side
Flow to the direction as shown in arrow in figure.
For make steel main building and steel rolling main building close to advantage, the present invention is by converter and heater for rolling steel
Residual heat resources are optimized integrated, construct a kind of based on converter and the integrated electricity generation system of heater for rolling steel waste heat.This
It is bright to be particularly suited for the situation that heater for rolling steel uses higher thermal value coal gas, or the feelings that blending high heating value gas ratio is higher
Condition.Due to calorific value of gas it is higher, so preheating temperature needed for air and coal gas is not very high, in addition only need preheated air and not
Need preheating gas so that the flue-gas temperature after air (or coal gas) preheating device is higher.More than converter and heater for rolling steel
The electricity generation system being thermally integrated mainly include converter waste-heat recovery device 1, heater for rolling steel furnace bottom water beam apparatus for vapour-cooling 9,
Heater for rolling steel tail flue gas waste heat reclaiming flue 4, steam turbine 10, generator 11.The converter waste-heat recovery device can be with
It is electric furnace waste-heat recovery device, or converter waste-heat recovery device or electric converter waste-heat recovery device.More than converter
Saturated vapor and roll that the saturated vapor of the generation of heat reclamation device 1, heater for rolling steel furnace bottom water beam apparatus for vapour-cooling 9 are produced
The saturated vapor that steel heater tail flue gas waste heat reclaiming flue 4 is produced is collected, and is then together sent into and is arranged on steel rolling and adds
Overheating Treatment is carried out in superheater 41 in hot stove tail flue gas waste heat reclaiming flue 4, superheated steam is obtained, steamer is finally sent to
Machine 10, the steam turbine is connected with the generator, and the acting of steam red switch Steam Turbine drives generator 11 to generate electricity, and realizes refining
The waste heat integrated generation of steel stove and heater for rolling steel.
Its concrete technology flow process is described in detail with reference to Fig. 1.The converter waste-heat recovery device 1 passes through jet chimney
Connect with the storage heater 2, the intermediate steam that converter waste-heat recovery device 1 is produced sends into the storage heater, the accumulation of heat
The steam (vapor) outlet of device 2 is connected with the steam main 3, and storage heater 2 is used to stablize steam, the saturated vapor conversion that interruption is produced
For the saturated vapor of continuous output.
The heater for rolling steel tail flue gas waste heat reclaiming flue 4 is arranged on conventional heater for rolling steel along flue gas flow
Air preheater and arrangement for gas preheating after, for absorbing after-heat.The heater for rolling steel tail flue gas waste heat
Reclaim and the superheater 41, high pressure evaporator 42, high-pressure economizer 43, low sequentially connected along flue gas flow is provided with flue 4
Pressure evaporimeter 44 and low-pressure coal saver 45.Especially, the superheater, high pressure evaporator, high-pressure economizer, low pressure evaporator,
Low-pressure coal saver adopts counter-flow arrangement, can obtain higher heat exchange efficiency.
Low pressure drum-oxygen-eliminating device 5 is the combination of low pressure drum and oxygen-eliminating device, and oxygen-eliminating device is installed on the top of low pressure drum,
Low pressure drum doubles as deoxygenation water tank.The delivery port of the low pressure drum-oxygen-eliminating device 5 is by outlet pipe 53 and the feed pump 6
Water inlet is connected, and the delivery port of the feed pump is connected with the water inlet of the high-pressure economizer 43.The high-pressure economizer 43
Delivery port connected with the water inlet of the high pressure drum 7 by pipeline 75, supply water to high pressure drum 7.The high pressure drum 7 leads to
Cross the first down-comer 71 to connect with the water inlet of high pressure evaporator 42, the venthole of the high pressure evaporator 42 rises by first
Pipe 74 is connected with the rising mouth of pipe of the high pressure drum 7, forms carbonated drink natural convection loop.
High pressure drum 7 is connected by the second down-comer 72 with the water inlet of the hot water circulating pump 8, the hot water circulating pump
Delivery port connect with the water inlet of the heater for rolling steel furnace bottom water beam apparatus for vapour-cooling, the heater for rolling steel furnace bottom water
The venthole of beam apparatus for vapour-cooling is connected by the second tedge 73 with the rising mouth of pipe of the high pressure drum 7, forms carbonated drink
Forced circulation loop.And the steam that high pressure drum 7 is produced is pooled in steam main 3 by pipeline 76.
Steam main 3 is with superheater 41, the steam turbine 10, the condenser 12 and the condensate pump 13 along vapour
Water flow-path is sequentially connected, and the effect of wherein superheater 41 is that the saturated vapor that steam main 3 is sent is converted to into superheated steam, and
The steam discharge of steam turbine 10 is then condensed into condensate by condenser 12, and each waste heat recovery dress is transported to Jing after condensate pump 13 pressurizes
The water inlet put, specifically, the outlet condensing water conduit of the condensate pump 13 is divided into two-way, all the way with the converter more than
The water inlet connection of heat reclamation device 1, another road connects with the water inlet of low-pressure coal saver 45.The low-pressure coal saver 45 goes out
The mouth of a river is connected by pipeline 51 with the water inlet of the low pressure drum-oxygen-eliminating device 5.
Low pressure drum-the oxygen-eliminating device 5 is connected by the 3rd down-comer 52 with the water inlet of low pressure evaporator 44, described low
The venthole of pressure evaporimeter 44 is connected by the 3rd tedge 54 with the rising mouth of pipe of the low pressure drum-oxygen-eliminating device, forms one
Individual natural convection loop.
Additionally, separating a bypass line 55 on the steam main 3, add with the auxiliary of the low pressure drum-oxygen-eliminating device 5
Vapours orifice.
Additionally, the condenser is provided with water supplement port, to supplement residual neat recovering system in the carbonated drink that loses.
Additionally, the heater for rolling steel tail flue gas waste heat reclaiming flue 4 is located under the exhaust pass of heater for rolling steel
Trip, the heater for rolling steel tail flue gas waste heat reclaiming flue 4 can be common flue, and heat-transfer surface is arranged in flue,
It can also be integrated waste heat boiler.
In sum, the electricity generation system integrated with heater for rolling steel waste heat based on converter of the invention has following beneficial
Effect：
(1) usual manner being independently arranged with heater for rolling steel waste heat recovery with converter is compared, and the present invention passes through system
The integration realization waste heat focus utilization of converter and heater for rolling steel, a whole set of therrmodynamic system is compacter, and layout is finer,
Cost of investment is lower；Additionally, for the saturated vapor that converter waste heat recovery is produced, present invention achieves converter waste heat
Saturated vapor it is overheated, more conventional converter waste heat saturated vapor can only be compared by the way of saturated vapor generates electricity, not only
Can improve the operational efficiency of steam turbine, but also the working environment (raising steam quality) of steam turbine can be improved, extend steam turbine
The service life of blade.
(2) for the residual heat resources of heater for rolling steel, the present invention by heater for rolling steel furnace bottom water beam evaporated cooling system and
Heater for rolling steel tail flue gas residual neat recovering system is integrated, unified layout, is vaporized using heater for rolling steel furnace bottom water beam cold
But device and heater for rolling steel tail flue gas waste-heat recovery device share the mode of drum and oxygen-eliminating device, more conventional steel rolling heating
Stove waste heat recovery pattern has obvious simplification, and gross investment is greatly reduced；Additionally, cold the vaporization of heater for rolling steel furnace bottom water beam is carried out
But during the optimization design of system and heater for rolling steel tail flue gas residual neat recovering system, with reference to Bottom of Heating Furnace water beam Vaporizing cooling
With the features of back-end ductwork waste heat recovery, steam-water circulation system is designed to into the combined-circulation of naturally partial order forced circulation
Mode, takes into account the energy-saving run of system under conditions of guarantee system is safe and reliable；The design of a whole set of afterheat generating system, with
And the annexation between each equipment, be integrated system security and heat-economy after optimization layout.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of based on converter and the integrated electricity generation system of heater for rolling steel waste heat, including converter waste-heat recovery device (1),
Heater for rolling steel furnace bottom water beam apparatus for vapour-cooling (9), heater for rolling steel tail flue gas waste heat reclaiming flue (4), storage heater
(2), steam turbine (10), generator (11), wherein,
The heater for rolling steel tail flue gas waste heat reclaiming flue (4) is pre- along the air that flue gas flow is arranged on heater for rolling steel
After thermal and arrangement for gas preheating,
The intermediate steam that converter waste-heat recovery device (1) is produced forms stable steam Jing after storage heater process and enters to be arranged on and rolls
Superheater (41) in steel heater tail flue gas waste heat reclaiming flue,
Saturated vapor and heater for rolling steel tail flue gas waste heat that heater for rolling steel furnace bottom water beam apparatus for vapour-cooling (9) is produced
The saturated vapor for reclaiming flue (4) generation collects into the superheater (41),
The venthole of superheater (41) is connected with steam turbine (10), and the steam turbine is connected with the generator (11), steam punching
Turn Steam Turbine acting, so as to drive electrical power generators.
2. according to claim 1 based on converter and the integrated electricity generation system of heater for rolling steel waste heat, the steel rolling adds
Superheater (41), high pressure evaporator (42), the high pressure province for sequentially connecting is provided with hot stove tail flue gas waste heat reclaiming flue (4)
Coal device (43), low pressure evaporator (44) and low-pressure coal saver (45), wherein,
Low pressure drum-oxygen-eliminating device (5) is connected by outlet pipe (53) with the water inlet of feed pump (6), the water outlet of the feed pump
Mouth is connected with the water inlet of the high-pressure economizer (43), and the high-pressure economizer (43) is by pipeline (75) to the pressure cooker
Cylinder (7) supplies water,
High pressure drum (7) is connected by the first down-comer (71) with the water inlet of the high pressure evaporator (42), and the high pressure steams
The venthole for sending out device is connected by the first tedge (74) with the rising mouth of pipe of the high pressure drum (7), is formed carbonated drink and is followed naturally
Loop back path；
High pressure drum (7) is connected by the second down-comer (72) with the water inlet of hot water circulating pump (8), the hot water circulating pump
Delivery port is connected with the water inlet of heater for rolling steel furnace bottom water beam apparatus for vapour-cooling (9), the heater for rolling steel furnace bottom
The venthole of water beam apparatus for vapour-cooling (9) is connected by the second tedge (73) with the rising mouth of pipe of the high pressure drum (7),
Carbonated drink forced circulation loop is formed,
And high pressure drum (7) produce saturated vapor, converter waste-heat recovery device (1) produce and Jing storage heater process after it is steady
Determine steam to be pooled in steam main (3), the venthole of the steam main is connected with superheater.
3. according to claim 2 based on converter and the integrated electricity generation system of heater for rolling steel waste heat, low pressure drum-remove
Oxygen device (5) is connected by the 3rd down-comer (52) with the water inlet of the low pressure evaporator (44), the low pressure evaporator (44)
Venthole connected with the rising mouth of pipe of the low pressure drum-oxygen-eliminating device (5) by the 3rd tedge (54), formed carbonated drink nature
Closed circuit.
4. according to claim 2 based on converter and the integrated electricity generation system of heater for rolling steel waste heat, steam turbine (10)
Steam drain sequentially connect along carbonated drink flow process with the water inlet of condenser (12), condensate pump (13), wherein,
The condensing water conduit of condensate pump (13) delivery port is divided into two-way, all the way with the converter waste-heat recovery device
(1) water inlet connection, another road is entered in low pressure cooker cylinder-oxygen-eliminating device (5) Jing after low-pressure coal saver (45) preheating.
5. according to claim 2 based on converter and the integrated electricity generation system of heater for rolling steel waste heat, the steam is female
A bypass line (55) is separated on pipe (3), is connected with the auxiliary heating vapor interface of the low pressure drum-oxygen-eliminating device (5).
6. according to claim 2 based on converter and the integrated electricity generation system of heater for rolling steel waste heat, the superheater,
High pressure evaporator, high-pressure economizer, low pressure evaporator, low-pressure coal saver adopt counter-flow arrangement.
7. according to claim 1 based on converter and the integrated electricity generation system of heater for rolling steel waste heat,
The heater for rolling steel tail flue gas waste heat reclaiming flue is the flue or integrated waste heat boiler of built-in heat-transfer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710068791.5A CN106643191A (en) | 2017-02-08 | 2017-02-08 | Power generation system based on steel smelting furnace and steel rolling heating furnace waste heat integration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710068791.5A CN106643191A (en) | 2017-02-08 | 2017-02-08 | Power generation system based on steel smelting furnace and steel rolling heating furnace waste heat integration |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969339A (en) * | 2017-05-18 | 2017-07-21 | 中冶华天南京工程技术有限公司 | Integrated power generation system based on coke-oven plant's heat recovery |
| CN107013269A (en) * | 2017-05-18 | 2017-08-04 | 中冶华天南京工程技术有限公司 | The heat power generating system recycled based on coke-oven plant's residual heat resources |
| CN107024120A (en) * | 2017-05-26 | 2017-08-08 | 中冶华天南京工程技术有限公司 | A kind of low-temperature flue gas of heating furnace and furnace bottom water beam waste heat comprehensive utilization system |
| CN110657682A (en) * | 2019-09-27 | 2020-01-07 | 江苏琪心冶金设备制造有限公司 | Novel heating furnace pusher |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106969339A (en) * | 2017-05-18 | 2017-07-21 | 中冶华天南京工程技术有限公司 | Integrated power generation system based on coke-oven plant's heat recovery |
| CN107013269A (en) * | 2017-05-18 | 2017-08-04 | 中冶华天南京工程技术有限公司 | The heat power generating system recycled based on coke-oven plant's residual heat resources |
| CN107024120A (en) * | 2017-05-26 | 2017-08-08 | 中冶华天南京工程技术有限公司 | A kind of low-temperature flue gas of heating furnace and furnace bottom water beam waste heat comprehensive utilization system |
| CN110657682A (en) * | 2019-09-27 | 2020-01-07 | 江苏琪心冶金设备制造有限公司 | Novel heating furnace pusher |
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Application publication date: 20170510 |